table proposed cleanup levels groundwater · 10/21/2013  · table 04 summery of prsllmnery cost...

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Table 9-4 Proposed Cleanup Levels in Groundwater Former Kast Property Carson, CA Chemical Group Chemical Maximum On -Site Concentration Detected (pg /L) Proposed Clean Up SSCG (pg/L) Rationale for Proposed SSCG TPH Benzene 689 1' Primary MCL, NL,or ESL /zero natural background Naphthalene 82 17' tea-Butyl Alcohol (TBA) 250 121 TPH- Gasdine 3,200 410' TPH -Diesel 3,000 200' TPH -Motor Oil 1;700 6200' Chlorinated 1,1- Dlchloroethane 22 5' Primary MCL/zero natural background 1,1- Dlchloroethene 33 6' I,2,3-Trichloropropane 27 0.005' 1,2- Dlchloroethane 6.1 0.5' cis- 1,2- Dichloroethene 510 6' Tetrachloroethene 260 5' trans-1,2- Dichloroelhene 120 10' Trichloroethene 400 5' Vinyl Chloride 0.71 0.5' 1,4- Dichlorobenzene 11 5' Trace Metals Antimony 19.3 BKG Can have natural sources and naturally elevated background Thallium 4.24J BKG concentrations Arsenic 900 BKG General Iron 67 mg /L NP Basin wide contaminant with natural sources and naturally Mineral Manganese 2.55 mg /L NP elevated background concentrations Chloride 1,400 mg /L NP Nitrate (as N) 14 mg /L BKG Total Dissolved Sothis 3,320 mg /L NP Specific Condudance 4,200 pS /cm NP Notes: ': Primary MCL (Maximum Contaminant Level for drinking water) ': NL (Notification Level) ': ESL (SFRWQCB Health Risk Environmental Screening Level) BKG: Background Level NP: Not Proposed pg /L: micrograms per liter; mg /L: milligrams per liter; pS /cm: microslmens per centimeter Geosyntec Consultants Table 9 -4 Proposed Cleanup Lavels_10-2013.docx

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Page 1: Table Proposed Cleanup Levels Groundwater · 10/21/2013  · Table 04 Summery of PrsllMnery Cost ES11motee for Soleening Feasibility Study Former Kest Property Carson, CA GeotFnlenGOneullanle

Table 9-4 Proposed Cleanup Levels in Groundwater Former Kast Property Carson, CA

Chemical Group

Chemical Maximum On -Site

Concentration Detected

(pg /L)

Proposed Clean Up

SSCG

(pg/L)

Rationale for Proposed SSCG

TPH Benzene 689 1' Primary MCL, NL,or ESL /zero natural background Naphthalene 82 17' tea -Butyl Alcohol (TBA) 250 121 TPH- Gasdine 3,200 410' TPH -Diesel 3,000 200' TPH -Motor Oil 1;700 6200'

Chlorinated 1,1- Dlchloroethane 22 5' Primary MCL/zero natural background 1,1- Dlchloroethene 33 6' I,2,3-Trichloropropane 27 0.005' 1,2- Dlchloroethane 6.1 0.5' cis- 1,2- Dichloroethene 510 6' Tetrachloroethene 260 5' trans-1,2- Dichloroelhene 120 10' Trichloroethene 400 5' Vinyl Chloride 0.71 0.5' 1,4- Dichlorobenzene 11 5'

Trace Metals Antimony 19.3 BKG Can have natural sources and naturally elevated background Thallium 4.24J BKG concentrations Arsenic 900 BKG

General Iron 67 mg /L NP Basin wide contaminant with natural sources and naturally Mineral Manganese 2.55 mg /L NP elevated background concentrations

Chloride 1,400 mg /L NP Nitrate (as N) 14 mg /L BKG

Total Dissolved Sothis 3,320 mg /L NP Specific Condudance 4,200 pS /cm NP

Notes: ': Primary MCL (Maximum Contaminant Level for drinking water) ': NL (Notification Level) ': ESL (SFRWQCB Health Risk Environmental Screening Level) BKG: Background Level NP: Not Proposed pg /L: micrograms per liter; mg /L: milligrams per liter; pS /cm: microslmens per centimeter

Geosyntec Consultants Table 9 -4 Proposed Cleanup Lavels_10- 2013.docx

Page 2: Table Proposed Cleanup Levels Groundwater · 10/21/2013  · Table 04 Summery of PrsllMnery Cost ES11motee for Soleening Feasibility Study Former Kest Property Carson, CA GeotFnlenGOneullanle

Table 04 Summery of PrsllMnery Cost ES11motee for Soleening Feasibility Study Former Kest Property Carson, CA

GeotFnlenGOneullanle

Altemetiv Ctlteda Property rry PU rcM1ase Coat

(yBE properties) Demolition Costs

xnveta, BacMlll, E ®paaon [Data

PM, Planning, Field

Mott, Monitor-Ina, Reporting, Security

Post Excavation

Construction KW Long-Term O &M

Total Est. Costs bwtEnd COtq

t.30 %)

High-End Costs

ßa30 %

Remove ell eh. features.

oik [4(44.4.4 4V bvllyenrnnm Wt,

or rsmwltdnv

NINA moon for FenlainIng GW. Could add iimrtes ho spot 41,4444 to reduce

time re achroverleartun genic

Remove LNAPtes Am..

$90,020,000 $10,000,000 $270,000,000 $27,020,020 54,000,000 $420,000,000 $290,000,000 5630,000,000

leer wremow Impacted palls.

non ...Wore scion Pun,

$90,000,000 ii $10,200020 $130,009,090 519,000,000 $4,800,000 $270,000,000 $190,000,000 $410,000,000

201

ALTERNATIVE 057

oneum rim. to 1=4414 orritco Pia,

Add sve ro recluse Ve al, 44'4

$90,x0000 $10,000,000 $140,000,002 $20,000,200 $7,200,000 $200,000000 $200,000,000 $400,000,000

3

l mnutor ow, could l wlimited

hotpot temediatbntomduce lime to

$0 $610,000 $9,400,000 517000,000 $4,400,000 431,000,000 $22,000,040 $40,000,000

40901014 SE10404,44041 Tab!. 04110 4.3 GM 0,5_1144014 xlsx

Page 3: Table Proposed Cleanup Levels Groundwater · 10/21/2013  · Table 04 Summery of PrsllMnery Cost ES11motee for Soleening Feasibility Study Former Kest Property Carson, CA GeotFnlenGOneullanle

Table 9.6

Summary of Prallminery Cost Estimates for Swooning Feasibility Study Former Kost Properly Carson, CA

Alternative Criteria Property Purchase Cost

(lg3 pro parties) Demolition Costs

Excavate, Back' Ill, Bptso< Costs

PM, Planning, Field

Mgmt, Monitoring, 3epartln E,ACUnty

Past Excavation

ConsVUttlon and tontletm O ®M

Total Est. Costs -Encl Coats

ots_30%) HIgb.End Casts

(K0%

3a7

bet spot reMdlatIonta MIL. lining

reduce 0006074

$1,405,000 $830,305 315,000,300 $17,000,000 56,600,000 $41,000,000 $29,000,000 $61,000,000

3A ALTERNATIVE M semee. taeue eAwne 0,feet $0 $1,300,300 $33,330,000 $47,000,000 $4,400,000 $86,000,000 $60,000,000 $130,000,000

3Ae7

ALTERNATIVE 3A7

mesvp to reduce vo[/tpxmm7 t $1.400,000 $1,100,000 $33,000,000 548,000,030 $6,300,005 $06,000,000 $67,000,000 $140,000,000

30 ALTRRNATVR m,. .c,.m,=...t.mkm $0 $1,400,000 $71,000,000 $34,000,000 $4,400,000 $130,000,030 $110,000,000 $240,000,000

3+ 0] educe cenvuta t t

mesvnure . VOQIPH $1,400,000 $1,30,000 $70,000,005 $85,000,000 $6,800,000 $170,000,000 Ç 100,000,000 $360,000,000

4

residential pmperlies.

ceneolittotlen. Weed Waning Wt.

KM.. cleallunoars.

$0 $0 $4,400,000. $13,000,000 $4,400,000 $01,000,000 $15,000,000 $32,000,000

Page 2 014 se 4a4_SBGGTaolos611000antl0010-g013a1c

Page 4: Table Proposed Cleanup Levels Groundwater · 10/21/2013  · Table 04 Summery of PrsllMnery Cost ES11motee for Soleening Feasibility Study Former Kest Property Carson, CA GeotFnlenGOneullanle

Table 8,6

Summary of Preliminary Coat Esllmoles for Screening Feasibility Study Former Kast Property Carson. CA

Altering tive Salads Property purchase Cast

1áp5 properties) Demolition Costs

Excavate, Ba dgll, &N¢eu Costs

PM, planning, Held

M[mt,Monlbring Peportln E,9etuMy

Posit Excavation

Construction and ton @Term O &M

Tel Est. Casts Low-End Costs

1.30 %)

HIeheEnd Costs

M16B %)

4M17

ALTERNATIVE 447

Fume. sassed diesel's Sonoma feet whereH11390.8.8 am exceeded el

reMeintirl properties.

189:111subolab m9188088 albums Wil wan.. VOC en1 methane

scnrentratramaceed wombs slut re NA weedy Mr 6W.Cmfd MU !HMS

hot WO remelletion to (educe Ilmato derive rimed mob.

$1,400,000 $310,000 $9,000,000 $13,000,000 $6,900,000 $31,000,000 $23,000,000 $47,004,000

46 99188811W IA same n Al.xcept excavate imposed Voie $0 $0 $10,000,000 $00,000,000 $4,400,000 $00,000,000 $43,000,000 $00,000,002

40 +7 most nnvn°ery pvmavvl6

bro rot. vo[Tem.m.

$1,40,000 $220coo $33,000,000 $39,000,000 $6,0,00,000 $A,OCgOW $49,000,000 $110,000,000

as ALTERNATVE

row...ors opmee mie $0 $0 $47,000,000 570,000,000 $4,400,000 $110,000,000 $07,000,000 $100,000,000

40+7

ALTERNATIVE 4887

..'m 01 Pá 4 cues

0 "' "'tá 0" "á'0n f0 "'

w[/TIR mess.

$1,400,000 $200,000 $03,000,000 $73,000,000 $ $6,0,00,000 $1á0,000,00O $94,á00,0W $200,000,000

Remove all site fealureg end cap glie.

e°, 6m,m echlewe cleanup goals.

$98,000,000 818,000,000 5]000,000 $2,000,000 $4,400,000 $130,000,000 $91,000,000 $300,000,000

s:]

ALTERNATVE 587 988888.8898.98888898,88339e, seems Lunn es /risible

4 DANA remedy lat GW.88881 add limited 1885801 remodintion to toducollmeto

ma rv6 to ,.46m 000PR me...

$00,000,000 $1á,000,000 $12,000,000 83,000,000 $6,800,000 $140,000,000 $97,000,000 $210,000,000

rana 3 mn z"mxbx

Page 5: Table Proposed Cleanup Levels Groundwater · 10/21/2013  · Table 04 Summery of PrsllMnery Cost ES11motee for Soleening Feasibility Study Former Kest Property Carson, CA GeotFnlenGOneullanle

Table g -5

Summary of Preliminary Cost Estimates for Screening FeasibIllty Study Former Kest Property Carson, CA

Consokints

Albmativa 01 rla Property Purchase Cost

293 properties) Demolition Costs

Excavate, Beokfill, E &AVVOC Costs

PM, plennlne'FlelE Mami, Monitoring, Reporting, Smoky

Poet Exm ve[len

Construction end Long-Term O &M

Total Est. Costs Lom.End Costs

x'30 %)

High-and Costs

(1.50%1

e bl ex

sins II Burgin mitigation tailor Ate.

toncontntIonsexceed nmenIng value.

auto. remeation Is velure timers scalars citrons anal,

$4 $0 $12,000,000 $2,85,000 $4,400000 $19, $13,C00,000 $20,05,052

CST

. c.p ell areal el used roll ntve IRe.

where sub.. VOC and matimme

vor art spot remadirtion to reduce time to

Killers cit. sup anal, scrim to reduce tru /sys maue

$1,400,000 $225 oso $12,55,000 $3,100,000 $0,000,054 $28,000000 $20,000,05 $43,004000

005rteu m= Or Mersa's. animal-1 a

$1,400,000 $220,004 55,200,000 $705,000 52,400,000 $9,900,000 $7,000,000 511,000,000

Page 4014 813nitstance Tables 0.1 to nin and 10.10IS X.(

Page 6: Table Proposed Cleanup Levels Groundwater · 10/21/2013  · Table 04 Summery of PrsllMnery Cost ES11motee for Soleening Feasibility Study Former Kest Property Carson, CA GeotFnlenGOneullanle

Geosyntec consultants

FIGURES

SB04841 Revised SSCU Report Final 21- Oct- 2013.docx

Page 7: Table Proposed Cleanup Levels Groundwater · 10/21/2013  · Table 04 Summery of PrsllMnery Cost ES11motee for Soleening Feasibility Study Former Kest Property Carson, CA GeotFnlenGOneullanle

Harbor UCLA Medical Center

3,000 1,500 0 3,000 Feet

Site Location Map

Legend

mow en Site Boundary

Former Kan Property Carson, California

Geosyntec° consultants

Santa Barbara October 2013

Figure

1 -1

Page 8: Table Proposed Cleanup Levels Groundwater · 10/21/2013  · Table 04 Summery of PrsllMnery Cost ES11motee for Soleening Feasibility Study Former Kest Property Carson, CA GeotFnlenGOneullanle

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Page 9: Table Proposed Cleanup Levels Groundwater · 10/21/2013  · Table 04 Summery of PrsllMnery Cost ES11motee for Soleening Feasibility Study Former Kest Property Carson, CA GeotFnlenGOneullanle

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rbrmesmnvmomlY

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Page 10: Table Proposed Cleanup Levels Groundwater · 10/21/2013  · Table 04 Summery of PrsllMnery Cost ES11motee for Soleening Feasibility Study Former Kest Property Carson, CA GeotFnlenGOneullanle

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GZOSYCILCCc) re x9ulsuó

Summary olyax-momron Concentrations lnsmi

kimernanvmperry

Figure

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Page 11: Table Proposed Cleanup Levels Groundwater · 10/21/2013  · Table 04 Summery of PrsllMnery Cost ES11motee for Soleening Feasibility Study Former Kest Property Carson, CA GeotFnlenGOneullanle

2441%

24426

2a -

824829

150 75 0 50 Fee

Summary of Benzene Concentrations in Sub -Slab Soil Vapor

Logond

Non -Detect (ND)

a 8.4 pg /m'

> 8.4 to 84 pg /m3

> 84 to 840 pg /ma

> 840 pg /m'

Former <a at Property

nta Barbars October2013

Figure

7 -1

Page 12: Table Proposed Cleanup Levels Groundwater · 10/21/2013  · Table 04 Summery of PrsllMnery Cost ES11motee for Soleening Feasibility Study Former Kest Property Carson, CA GeotFnlenGOneullanle

150 75 150 Feet

Summary of Naphthalene Concentrations in Sub -Slab Soll Vapor

Legend.

O Non -Detect (ND)

C a 7.16 pg /m' > 7.16 to 71.6 pg /m' >71.6 to 716 pp/el'

> 716 pg /m'

Former Kast Property

Santa Barbara October2013

Figure

7 -2

Page 13: Table Proposed Cleanup Levels Groundwater · 10/21/2013  · Table 04 Summery of PrsllMnery Cost ES11motee for Soleening Feasibility Study Former Kest Property Carson, CA GeotFnlenGOneullanle

24502

MONTEREY DR

Legend

© Non -Detect (ND)

<= 122 pg /m' > 122 to 1220 pg /m' > 1220 to 12200 =gin?

> 12200 pg /m'

W Z F-

50 75 50 Fee

Summary of Trlchloroethene Concentrations In Sub -Slab Soil Vapor

Former Kest Property

Geos}mtecp consutranrs

Barbara October 2013

Figure

7 -3

Page 14: Table Proposed Cleanup Levels Groundwater · 10/21/2013  · Table 04 Summery of PrsllMnery Cost ES11motee for Soleening Feasibility Study Former Kest Property Carson, CA GeotFnlenGOneullanle

9d U

24512

Legend

O Non -Detect (ND)

e <= 41.2 ug /m3

> 41.2 to 412ug/m3

> 412 to 4120ug/m3 > 4120 ug /m3

150 75 150 Feet

Summary or Tetrachloroethene Concentrations In Sub -Slab Soil Vapor

Former Kest Property

Geosyntec° consultants

senta Barba October 201

Figure

7 -4

Page 15: Table Proposed Cleanup Levels Groundwater · 10/21/2013  · Table 04 Summery of PrsllMnery Cost ES11motee for Soleening Feasibility Study Former Kest Property Carson, CA GeotFnlenGOneullanle

Summary of Tetrachloroethene Concentrations in Sub -Slab Soil Vapor

Legend

o

ee

e

Non-Detect (ND)

<= 41.2 pg/m'

>41.2tO412pg/m' > 412 to 4120 pg/m'

> 4120 pg/m'

Former Kant Property

Geos ntec consultants

nta Barba October 20

Figure

7 -4

Page 16: Table Proposed Cleanup Levels Groundwater · 10/21/2013  · Table 04 Summery of PrsllMnery Cost ES11motee for Soleening Feasibility Study Former Kest Property Carson, CA GeotFnlenGOneullanle

E 244THâT

:sulk C,s<Árk1'

iris, zPia 24406

C24429

O 24427

24437

24516 22569

-t 058s

r

24603 24603

24608 0

24512 22613

LAND WA " 4':

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oc 24709

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C p

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E 248TH ST oV o 248 3

24823

24829

MONTEREY DR

MIMS Legend

Sub -Slab Soll Vapor Indoor Air o Non -Detect (ND) 25th Percentile (< 0.55 pg /m')

on 8.4 pg /m' - f` 25th to ce 50th Percentile (0.55 - 0.85 pg /m') e > 8.4 to 84 pg /ma MMEI> 50th to <e 75th Percentile (0.85 -0.1.4 pg /m')

> 84 to 840 pg /m' ®> 75th to cc 90th Percentile (1.4 - 2.7 pg /m') > 840 pg /m' , AP> 90th Percentile (>2.7 pg /m')

Summary of Benzene Concentrations In Indoor Air and Sub -Slab Soil Vapor

Former Kest Property

Geosyntecc' consnhanrs

Santa gerbma October 2013

Figure

7 -5

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LAND WA

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Summary of Naphthalene Concentrations in Indoor Air and Sub -Slab Soll Vapor

Legend

Sub -Slab Soil Vapor Non -Detect (ND)

< =7.16 pg /m'

Indoor Air ¡,. -,_f<= 25th Percentile (< 0.57 pg /m')

_ _1> 25th to <= 50th Percentile (0.57 - 0.B7 pg /m') > 7.16 to 71.6 pg /m3 E=1> 50th to <= 75th Percentile (0.87 - 1.5 pg /m') >71.6 to 716 pg /m3 Mgr 75th to 4= 90th Percentile (1.5- 2.5 pg /m') > 716 pg /m' > 90th Percentile ( >2.5. pg /m')

Former Kest property

GeosyntecL> consultants

Santa Barbara October 2013

Igure

7 -6

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Le0end

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e <= 41.2 pg /m' C j> 25th to <= 50th Percentile (0.1 - 0.21 pg /m') > 41.2 to 412 pg /m3 EME> 50th to <= 75th Percentile (0.21 - 0.47 pg /m')

e > 412 to 4120 pg /m3 asim> 75111 to <= 901h Percentile (0.47 - 1.2 pg /m') > 4120 pg /m' MR> 90th Percentile ( >1.2 pg /m')

150 75 150 Feet

Summary of Tetrachloroethene Concentrations in Indoor Air and Sub -Slab Soil Vapor

Former Ka st Properly

Geosyntect> consuhaols

Santa Barba October 2013

Figure

7 -7

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o o

P o

Ó

1

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o r Analyte Literature Values

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Q ® 9091 Percentile (lower/ upper)

0 50th Percentile (lower/ upper)

Comparison of Indoor Air Results to Literature Background Concentrations

Former Kest Property Carson, California

Geosyntec° consultants

Figure

10'^percennle -L- Santa Barbara October 2013 7 -8

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I I I I I I I 1 I

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sae pememim -.- A A Maximum (lower /upper)

Me percentile mom, 0 ® Mean (lower / upper)

5a percentile

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non percentile 1

Former Kest Property Carson, California

Geosyntect Figure consultants

Santa Barbara October2013 7 -9

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MW-0O-, ,- GUi

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Geosyntéc° consultants

maman I Fahwaryl03

Figure

8 -1

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IG LAND A

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Legend

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$ -It. Approximate Groundwater Flow Direction - - Site Boundary

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t liter (pg /l) collected In August 2013 Less than detection limit Estimated value

MW41 < 0.14

MW-40

MW-09

r

75 87.5 o 75 Feet

Benzene Concentrations In Groundwater - 3Q 2013 Shallow Zone Wells

Former Kast Property

Geosyntec" consultants

Barbara October 3013

Figure

8 -2

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IG LAIG LA-A

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5 Legend

t Monitoring Well

Approximate Groundwater Flow Direction S. s - - Site Boundary

MW -0025 Monitoring well designation 0.19 Benzene concentration In micrograms pe

Iller (pgll) collected in August 2013 <'. Less than detection limit J: Estimated value

r

r

175 87.5 0 75 Feet

Benzene Concentrations in Groundwater - 30 2013 Shallow Gaga Aquifer

Former Kost Property

Geosyntecp c0f19U11'anl's

Ma Berbera October 201

Figure

8 -3

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IG LA-ND WA1

w

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Legend

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<0.14 Benzene concentration In micrograms pe Iltet (poll) collected In August 2013

: Less than detection limit J: Estimated value

17 87.5 0 75 Feet

Benzene Concentrations in Groundwater - 3Q 2013 Deep Gage Aquifer

Former fast property

Geosyntecd cotlsütrbnrs

Santa Barbara ocmber2ot3

Figure

8-4

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Prepared for:

Shell Oil Products US 20945 S. Wilmington Avenues

Carson, CA 90810

Revised Site-Specific Cleanup Goal Report

Former Kast Property Carson, California

Prepared by:

924 Anacapa Street, Suite 4A

Santa Barbara, CA 93101 Telephone: (805) 897-3800

Fax (805) 899-8689 www.geosyntec.com

Project Number: SB0484-04-2

October 21, 2013

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SB0484\Revised SSCG Report Final 21-Oct-2013.docx i

CERTIFICATION

REVISED SITE-SPECIFIC CLEANUP GOAL REPORT

FORMER KAST PROPERTY

CARSON, CALIFORNIA

I am the Project Manager for Equilon Enterprises LLC doing business as Shell Oil Products US for this project. I am informed and believe that the matters stated in the Revised Site-Specific Cleanup Goal Report dated October 21, 2013 are true, and on that ground I declare, under penalty of perjury in accordance with Water Code section 13267, that the statements contained therein are true and correct.

_________________________________________ Doug Weimer Project Manager Shell Oil Products US October 21, 2013

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SB0484\Revised SSCG Report Final 21-Oct-2013.docx i

TABLE OF CONTENTS

Page

1.0 INTRODUCTION ................................................................................................ 1

1.1 Background .................................................................................................. 1 1.2 Objectives .................................................................................................... 3 1.3 Previous Response Actions ......................................................................... 3

2.0 SITE CONCEPTUAL MODEL ........................................................................... 7

2.1 Potential Sources and Potential Constituents of Concern ........................... 7 2.1.1 Total Petroleum Hydrocarbons ........................................................ 9 2.1.2 Volatile Organic Compounds .......................................................... 9 2.1.3 Semi-volatile Organic Compounds ................................................ 15 2.1.4 Metals ............................................................................................. 16 2.1.5 Methane ......................................................................................... 16 2.1.6 Summary of Potential COCs .......................................................... 17

2.2 Fate and Transport ..................................................................................... 18 2.3 Potential Exposure Pathways Evaluated .................................................... 21

3.0 PILOT TEST RESULTS .................................................................................... 23

3.1 SVE Pilot Tests .......................................................................................... 23 3.2 ISCO Bench-Scale Testing ........................................................................ 24 3.3 Bioventing Pilot Testing ............................................................................ 25 3.4 Excavation Pilot Testing ............................................................................ 26

4.0 CONSTITUENTS OF CONCERN AND REMEDIAL ACTION OBJECTIVES ..................................................................................................... 31

4.1 Constituents of Concern ............................................................................ 31 4.2 Remedial Action Objectives ...................................................................... 33

5.0 GUIDANCE DOCUMENTS AND POLICIES CONSIDERED ....................... 35

6.0 SOIL ................................................................................................................... 39

6.1 Residential Receptor .................................................................................. 42 6.2 Construction Worker and Utility Maintenance Worker ............................ 45 6.3 Soil Leaching to Groundwater ................................................................... 46

6.3.1 Methodology .................................................................................. 47 6.3.2 Cleanup Goals for Soil Leaching to Groundwater ......................... 48

7.0 SOIL VAPOR, INDOOR AIR, AND OUTDOOR AIR .................................... 50

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TABLE OF CONTENTS (Continued)

Page

SB0484\Revised SSCG Report Final 21-Oct-2013.docx ii

7.1 Residential Receptor .................................................................................. 50 7.1.1 Vapor Intrusion to Indoor Air ........................................................ 51 7.1.2 Vapor Migration to Outdoor Air .................................................... 57

7.2 Methane ..................................................................................................... 58 7.3 Construction and Utility Maintenance Worker Receptor .......................... 59

8.0 GROUNDWATER ............................................................................................. 60

8.1 Introduction ............................................................................................... 60 8.2 Groundwater Occurrence ........................................................................... 60 8.3 Groundwater Quality ................................................................................. 62

8.3.1 Non Site-Related COCs ................................................................. 64 8.3.2 Site-Related COCs ......................................................................... 68

8.4 Proposed Cleanup Goals for Groundwater ................................................ 73 8.4.1 Site Conditions Relevant to Establishing Cleanup Goals .............. 73 8.4.2 Regulatory Standards Relevant to Establishing Cleanup

Goals .............................................................................................. 76 8.4.3 Proposed Site-specific Cleanup Goals for Groundwater ............... 78

9.0 EVALUATION OF TECHNOLOGICAL AND ECONOMIC FEASIBILITY OF SSCGS AND SELECTION OF SSCGS ............................. 81

9.1 Introduction .............................................................................................. 81 9.2 Identification and Screening of Remedial Technologies ........................... 82

9.2.1 Remedial Technologies that Interrupt the Human Health Exposure Pathway .......................................................................... 82

9.2.2 Remedial Technologies that Remove COC Mass and Interrupt the Human Health Exposure Pathway ............................ 83

9.3 Assembly of Remedial Alternatives for Consideration in Developing SSCGs ............................................................................................. 86 9.4 Preliminary Screening of Remedial Alternatives ...................................... 88

9.4.1 Alternative 1 .................................................................................. 89 9.4.2 Alternative 2 .................................................................................. 90 9.4.3 Alternative 3 .................................................................................. 92 9.4.4 Alternative 3A ................................................................................ 94 9.4.5 Alternative 3B ................................................................................ 95 9.4.6 Alternative 4 .................................................................................. 97 9.4.7 Alternative 4A ................................................................................ 99

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TABLE OF CONTENTS (Continued)

Page

SB0484\Revised SSCG Report Final 21-Oct-2013.docx iii

9.4.8 Alternative 4B .............................................................................. 101 9.4.9 Alternative 5 ................................................................................ 102 9.4.10 Alternative 6 ................................................................................ 104 9.4.11 Alternative 7 Addition ................................................................. 105

9.5 Comparative Evaluation of Retained Alternatives .................................. 106 9.6 Recommendation of Remedial Alternative that Are Technologically and Economically Feasible Alternatives ............................... 107

10.0 REFERENCES ................................................................................................. 109

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SB0484\Revised SSCG Report Final 21-Oct-2013.docx iv

LIST OF TABLES

Table 4-1: Statistical Summary of Soil Matrix Data

Table 4-2: Statistical Summary of Soil Vapor Data

Table 4-3: Statistical Summary of Indoor Air Data

Table 4-4: Statistical Summary of Groundwater Data

Table 4-5: Soil Matrix Constituent of Concern Screening

Table 4-6: Soil Vapor Constituent of Concern Screening

Table 6-1: Site-specific Cleanup Goals for Soil – Resident and Construction and Utility Maintenance Worker

Table 6-2: Site-specific Cleanup Goals for Soil – Leaching to Groundwater

Table 7-1: Background Sources of Chemicals in Indoor Air

Table 7-2: Site-specific Cleanup Goals for Soil Vapor – Resident and Construction and Utility Maintenance Worker

Table 9-1: Feasibility Matrix

Table 9-2: Proposed SSCGs for Soil

Table 9-3: Proposed SSCGs for Soil Vapor

Table 9-4: Proposed SSCGs for Groundwater

Table 9-5: Summary of Preliminary Screening Cost Estimate for Screening Feasibility Study

LIST OF FIGURES

Figure 1-1: Site Location Map

Figure 6-1: Summary of Benzo(a)pyrene Equivalents Soil

Figure 6-2: Summary of TPH-Diesel Concentrations in Soil

Figure 6-3: Summary of TPH-Motor Oil Concentrations in Soil

Figure 7-1: Summary of Benzene Concentrations in Sub-slab Soil Vapor

Figure 7-2: Summary of Naphthalene Concentrations in Sub-slab Soil Vapor

Figure 7-3: Summary of Trichloroethene Concentrations in Sub-slab Soil Vapor

Figure 7-4 Summary of Tetrachloroethene Concentrations in Sub-slab Soil Vapor

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SB0484\Revised SSCG Report Final 21-Oct-2013.docx v

Figure 7-5: Summary of Benzene Concentrations in Indoor Air

Figure 7-6: Summary of Naphthalene Concentrations in Indoor Air

Figure 7-7: Summary of PCE Concentrations in Indoor Air

Figure 7-8: Comparison of Indoor Air Results to Literature Background Concentrations

Figure 7-9: Comparison of Outdoor Air Results to Literature Background Concentrations

Figure 8-1: Geologic Cross Section

Figure 8-2: Benzene Concentrations in Groundwater – Q3 2013; Shallow Zone Wells

Figure 8-3: Benzene Concentrations in Groundwater – Q3 2013, Shallow Gage Aquifer

Figure 8-4: Benzene Concentrations in Groundwater– Q3 2013; Deep Gage Aquifer

LIST OF APPENDICES

Appendix A: Soil and Soil Vapor Site-specific Cleanup Goal Derivation

Appendix B: Vapor Intrusion Pathway Evaluation

Appendix C: Monitoring and Remediation Optimization System (MAROS) and BioScreen Model Results

Appendix D: Responses to Regional Board, OEHHA, and Expert Panel Comments

Appendix E: Distribution of Selected Volatile Organic Compounds in On-site and Off-site Areas (Soil and Groundwater)

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SB0484\SSCGs Appendix A i October 2013

APPENDIX A

Soil, Sub-Slab Soil Vapor, and Soil Vapor Site-Specific Cleanup Goal Derivation

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SB0484\SSCGs Appendix A ii October 2013

TABLE OF CONTENTS

1.0 INTRODUCTION ................................................................................................ 1

2.0 DATA EVALUATION AND COC SELECTION ............................................... 1

3.0 EXPOSURE ASSESSMENT ............................................................................... 3

3.1 Fate and Transport Modeling ...................................................................... 4 3.1.1 Fugitive Dust Emissions into Outdoor Air ..................................... 5

3.1.2 Vapor Emissions into Outdoor Air ................................................. 7

3.1.3 Vapor Emissions into Indoor Air .................................................. 14

4.0 TOXICITY ASSESSMENT ............................................................................... 14

5.0 SITE-SPECIFIC CLEANUP GOALS ................................................................ 16

5.1 Risk-based SSCG Methodology ................................................................ 16 5.1.1 SSCGs Based on Cancer Health Effects ....................................... 18

5.1.2 SSCGs Based on Noncancer Health Effects ................................. 19

5.1.3 TPH Fraction-Specific SSCGs ...................................................... 20

5.1.4 SSCGs for TPH Product Ranges ................................................... 22

5.2 Background-based SSCG Methodology .................................................... 24 5.3 Soil Leaching to Groundwater Methodology ............................................ 27

5.3.1 The LARWQCB Attenuation Factor Method for VOCs .............. 27

5.3.2 The USEPA RSL Soil Cleanup Goal Method for Metals ............. 28

5.3.3 SAM Model DAF Method ............................................................ 28

5.3.4 Example Calculation ..................................................................... 30

6.0 REFERENCES ................................................................................................... 32

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SB0484\SSCGs Appendix A iii October 2013

LIST OF TABLES

Table A-1 Exposure Parameters

Table A-2 Definition of Transfer Factors

Table A-3a Derivation of Particulate Emission and Volatilization Factors, Onsite Resident

Table A-3b Derivation of Particulate Emission and Volatilization Factors, Onsite Construction and Utility Maintenance Worker

Table A-4 Chronic Toxicity Criteria

Table A-5 Exposure Concentration for Outdoor Inhalation of Particulates/Vapors from Soil

Table A-6 Exposure Concentration for Outdoor Inhalation from Soil Vapor

Table A-7 Exposure Concentration for Indoor Inhalation from Sub-Slab Soil Vapor

Table A-8 Intake Factor for Dermal Contact with Soil

Table A-9 Intake Factor for Incidental Soil Ingestion

Table A-10 Site-Specific Cleanup Goals for Soil, Onsite Resident

Table A-11 Site-Specific Cleanup Goals for Sub-Slab Soil Vapor, Onsite Resident

Table A-12 Site-Specific Cleanup Goals for Soil, Construction and Utility Maintenance Worker

Table A-13 Site-Specific Cleanup Goals for Soil Vapor, Construction and Utility Maintenance Worker

Table A-14 Site-Specific Cleanup Goals for Soil, Background

Table A-15 LARWQCB Attenuation Factor Method and USEPA RSL Soil Cleanup Goal Method Parameters

Table A-16 SAM Model Dilution Attenuation Factor Method Parameters

Table A-17 Site-Specific Cleanup Goals based on Soil Leaching to Groundwater

LIST OF ATTACHMENTS

Attachment A1: SSCG Derivation Spreadsheets

Attachment A2: Background Evaluation

Attachment A3: Soil Leaching to Groundwater SSCG Derivation Spreadsheets

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SB0484\SSCGs Appendix A A-1 October 2013

1.0 INTRODUCTION

This appendix presents the approach and methodologies that were used to derive Site-specific cleanup goals (SSCGs) for constituents of concern (COCs) detected in soil, sub-slab soil vapor, and soil vapor at the former Kast Property (Site) located in Carson, California. The Site is a former oil storage facility that was sold by Shell Oil Company in the late 1960s and later redeveloped into the Carousel subdivision containing 285 single family houses. Based on historical operations, the primary Site COCs are related to crude oil and bunker oil.

Site-specific cleanup goals were derived to provide target cleanup goals for the development of a Site remediation strategy. The SSCG calculation approach is consistent with current United States Environmental Protection Agency (USEPA) and California Environmental Protection Agency (Cal-EPA) Department of Toxic Substances Control (DTSC) guidance documents (USEPA, 1989; 1991a; 2002; 2009; 2013a,b; Cal-EPA 1999; 2011a) including the withdrawn Interim Guidance on Evaluating Human Health Risks from Total Petroleum Hydrocarbons (TPH) (Cal-EPA, 2009a)1. Risk-based SSCGs for human health, SSCGs for potential migration to groundwater through leaching, and SSCGs based on local and regional background have been developed for the Site. A discussion of the input parameters, the algorithms, and SSCGs are included in this appendix.

2.0 DATA EVALUATION AND COC SELECTION

An initial step in the risk assessment process is an evaluation of available data to identify media-specific COCs. A variety of samples have been collected as a part of the Site investigation process. Detected compounds include inorganics, polycyclic aromatic hydrocarbons (PAHs), total petroleum hydrocarbons (TPH), volatile organic compounds (VOCs), semi-volatile organic compounds (SVOCs) and metals. These compounds, if they were detected in at least one sample in a given media (soil or soil vapor), were included in the COC selection process. A toxicity-concentration screen was then used to focus the list of COCs to those chemicals that have the potential to contribute significantly to potential risk at the Site, as discussed below.

COC screening was conducted using risk-based screening levels (RBSLs) that were calculated assuming potential residential exposures to COCs in soil and soil vapor as part of the human health screening risk evaluation (HHSRE) process (Geosyntec, 2009, 2010, 2011). The RBSLs represent chemical-specific concentrations in the relevant environmental media that would be consistent with a target risk level for the current land use under

1 Note that the Cal-EPA Interim Guidance on Evaluating Human Health Risks from Total Petroleum Hydrocarbons (TPH) is no longer active; however, information provided in this document is considered in this evaluation.

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SB0484\SSCGs Appendix A A-2 October 2013

conservative (i.e., protective) exposure conditions. For soil vapor, the screening levels were developed to address potential sub-slab soil vapor migration to indoor air. This is the most sensitive land-use and conservative for construction and maintenance worker exposures. For carcinogenic PAHs and metals, a background comparison value was used along with the calculated RBSLs for COC selection.

An additional screening criterion for soil was if the chemical was detected in five or less samples it was excluded from the SSCG derivation. Due to the large number of soil samples collected (over 10,000) this equates to less than or equal to 0.05 percent of soil samples.

In the first step of COC selection, a list of detected chemicals in each media was identified. Tables 4.1 through 4.4 of the main report present the prevalence and range of concentrations of all chemicals that were detected at least once in soil, soil vapor, indoor air, and groundwater, respectively across the Site. As discussed in the main report, quantitative SSCGs are being developed for soil and sub-slab soil vapor for onsite residents, soil and soil vapor for construction and utility maintenance workers and migration from soil to groundwater through leaching. Therefore, chemicals detected in these media were carried forward into the COC selection.

To identify COCs for each media, the maximum concentration for that media was compared to one-tenth of its respective RBSL. One-tenth of the RBSL was used as a conservative approach to screen chemicals for further analysis and to address potential cumulative effects. If the maximum concentration was greater than one-tenth of the RBSL it was selected as a COC for the Site. In addition to the RBSL screen, background concentrations for metals and carcinogenic PAHs (cPAHs as benzo(a)pyrene equivalents) were considered.

For the selection of soil COCs to address the leaching to groundwater pathway, chemicals that were detected in groundwater above their respective maximum contaminant level (MCL) or notification level (NL) were carried forward into the SSCG derivation process. Based on the site conceptual model (SCM) presented in Section 2 of the main report and the age of potential petroleum releases at the Site, groundwater impacts from leaching from Site soils are not expected to change appreciably. This is discussed further in Section 8 of the main report and supported by the plume stability analysis. As a result, the inclusion of chemicals that have been detected above MCLs and NLs is considered appropriate for COC selection.

Tables 4.5 and 4.6 of the main report present the COCs that have been identified for each media to be carried forward into the RAP.

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3.0 EXPOSURE ASSESSMENT

To evaluate whether the levels of COCs present in soil and soil vapor would pose a risk to human populations, it is necessary to (i) identify the populations that may potentially be exposed to these COCs, and (ii) define the pathways by which the exposures may occur. The following table summarizes the receptor, exposure media, and potential exposure pathways that were considered in deriving the SSCGs. The following table summarizes the exposure scenarios that were evaluated.

Receptor Exposure Medium Potentially Complete Exposure Pathway

Onsite Resident

Shallow Surface Soil (0-2 ft bgs)

• Incidental Ingestion • Dermal Contact • Outdoor Air Inhalation

Shallow Subsurface Soil (>2-10 ft bgs)

• Infrequent Incidental Ingestion • Infrequent Dermal Contact • Infrequent Outdoor Air Inhalation

Sub-Slab Soil Vapor • Vapor Inhalation in Indoor Air via

Vapor Intrusion

Construction and Utility Maintenance Worker

Shallow Soil (0-10 ft bgs)

• Incidental Ingestion • Dermal Contact • Outdoor Air Inhalation

Soil Vapor • Vapor Inhalation in Outdoor Air

Groundwater Shallow Soil (0-10 ft bgs) • Leaching to Groundwater

The soil SSCGs for the residential scenario are based on surface soil (0-2 feet below ground surface [ft bgs]) and subsurface soil (>2-10 ft bgs) exposure assumptions. SSCGs were derived for onsite residents who may typically contact surface soils using the Cal-EPA and USEPA default exposure frequency (EF) of 350 days per year. Surface soils are considered for typical residential exposures, whereas subsurface soils are considered for infrequent contact, because the likelihood of a resident contacting soils at deeper depths is very low given the developed nature of the Site and typical residential activities where exposure to soil could occur (e.g., lawn care, recreational activities, landscaping). Typical lawn care and gardening would occur in the surface soil horizon.

The potential does exist for deeper soils to be contacted (e.g., if a sizable tree is planted), but this would not occur on a regular basis for a given property. To address the unlikely, infrequent exposure to subsurface soils (>2-10 ft bgs), SSCGs were developed for residents

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SB0484\SSCGs Appendix A A-4 October 2013

assuming a lower frequency of exposure of 4 days per year. The exposure frequency of 4 days per year is based on 1/10th of the USEPA recommended event frequency of 40 events per year for an adult resident gardening outdoors on a more routine basis (USEPA, 1997). Since the value of 40 days per year is based on routine gardening, an adjustment was considered reasonable to account for infrequent contact to account for instances where a resident may contact deeper soil (e.g. planting a tree). In addition, it is unlikely that residents would contact soils unearthed from a deeper excavation (such as during a major renovation or utility repair work) as these soils could not be placed onsite due to the developed nature of the neighborhood and lack of open area to place the excavated soils. The conceptual model for this assumption includes institutional controls (e.g., a notification requirement triggered when an excavation permit is applied for) to prevent redistribution of deep soils at the surface. A Soil Management Plan will be prepared either as a part of, or subsequent to, the RAP that will provide the detailed approach to preventing residential exposure to subsurface soils impacted by Site COCs.

A summary of the exposure parameters used to derive the SSCGs for the receptors identified above is presented in Table A-1. These parameters are consistent with those recommended by Cal-EPA and USEPA and include separate child and adult exposure parameters that are used in an integrated child/adult exposure scenario consistent with guidance.

3.1 Fate and Transport Modeling

Fate and transport modeling was employed to predict the movement of COCs from impacted soil and soil vapor to points of exposure for human populations. Fate and transport modeling was employed to develop transfer factors for the following transport mechanisms:

• Transport of particulate-phase chemicals from soil matrix to outdoor air;

• Transport of vapor-phase chemicals from soil matrix to outdoor air;

• Transport of vapor-phase chemicals from soil vapor to outdoor air; and

• Transport of vapor-phase chemicals from sub-slab soil vapor to indoor air.

Fate and transport modeling for migration from soil to outdoor air was conducted using the models presented in the Supplemental Guidance for Developing Soil Screening Levels for Superfund Sites (Soil Screening Guidance) (USEPA, 2002). Standard equations presented in the Soil Screening Guidance were used, incorporating local meteorological conditions for the Los Angeles area, for derivation of COC-specific volatilization factors (VFs) and the particulate emission factor (PEF). The definitions for each of the transfer factors listed above are presented in Table A-2. Calculations for the VF and PEF are summarized in Table A-3a for a resident and in Table A-3b for a construction and utility maintenance worker, and are discussed below. Additional details regarding these transfer factors were

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SB0484\SSCGs Appendix A A-5 October 2013

discussed in the HHSE Work Plan (Geosyntec, 2009; 2010). Fate and transport modeling for leaching to groundwater is discussed in Section 5.3 of this Appendix.

3.1.1 Fugitive Dust Emissions into Outdoor Air

COCs at the Site may become airborne due to fugitive dust emissions. Compounds (e.g., SVOCs) can adhere to soil particles then become airborne due to wind erosion, which could generate dust containing COCs. Exposure to these chemicals may then occur via inhalation of airborne fugitive dust. Inhalation exposure to non-volatile compounds is typically minor in fugitive dust when compared to direct ingestion exposure (USEPA, 2002). Nevertheless, a relationship can be estimated between the COC concentration in soil and the corresponding concentration in air (secondary media) attributable to fugitive dust emissions from soil.

Potential exposure to airborne dust is estimated using a particulate emission factor (PEF) that relates the concentration of soil constituents to the concentration of dust particles in air. The PEF represents an annual average emission rate based on wind erosion. The PEF equation described in the Soil Screening Guidance (USEPA, 2002) was used in this evaluation. The emissions part of the PEF equation is based on the “unlimited reservoir” model developed to estimate PM10 emissions (particulate matter less than 10 micrometers in diameter [PM10]) due to wind erosion (Cowherd et al., 1985).

3.1.1.1 Onsite Residential Scenario

For onsite residents, the following equation was used to estimate their PEF:

] F

UU G)-(1 [0.036

CF) (Q/C = PEF

x

3

T

M ×

××

×

Where:

PEF = particulate emission factor as cubic meters per kilogram (m3/kg) Q/C = inverse of mean concentration at center of source (g/m2-s per kg/m3) CF = units conversion factor (3600 s/hr) 0.036 = respirable fraction (g/m2-hr) G = fraction of vegetative or other cover (0.5 unitless; USEPA, 2002) UM = mean annual wind speed (3.31 m/s, average for Los Angeles; NCDC,

2011) UT = equivalent threshold value of wind speed at 7 meters above ground

surface (11.32 m/s; USEPA, 2002)

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Fx = function dependent on UM/UT (0.00474 unitless; USEPA, 1996)

The dispersion part of the PEF equation includes a dispersion coefficient (Q/C) in units of grams per square meter-second per kilogram per cubic meter (g/m2-s per kg/m3). The Q/C term was generated using the Industrial Source Complex model and varies depending on the source area, city, and climatic zone. This term accounts for the dispersion of particulate matter, once emitted and was estimated using the following equation (USEPA, 2002):

( ) ( )

−×=

CBlnAexpACQ

2SITE

Where:

ASITE = areal extent of soil impact (0.5 acres) A = constant = 11.911, based on air dispersion modeling (USEPA, 2002) B = constant = 18.4385 (USEPA, 2002) C = constant = 209.7845 (USEPA, 2002)

The coefficients A, B, and C for the Los Angeles area are published in the Soil Screening Guidance (USEPA, 2002). A Q/C value of 68.18 g/m2-s per kg/m3 was estimated as the inverse of the mean concentration at the center of a 0.5-acre source. The resulting PEF for onsite residents was estimated at 1.2×10+11 m3/kg (see Table A-3a).

3.1.1.2 Construction and Utility Maintenance Worker Scenario

Existing utilities that supply the residential properties with water, communications, and natural gas, and sewer lines are present at the Site. Therefore, a construction and utility maintenance worker may contact soils during repair or maintenance of these utilities both on residential properties as well as in the streets. It is assumed that construction and utility workers may be exposed to COCs in the upper 10 feet of soil. Fugitive dust can also be generated during the use of heavy equipment such as backhoes during utility work in trenches. As a conservative exposure assumption, a dust concentration equal to 1 mg/m3 or 1×10-6 kg/m3 (Cal-EPA, 2011a)2 was assumed for the construction and utility maintenance worker. The PEF is related to the concentration of particulate matter (dust) in air:

2 The respirable dust concentration of 1 mg/m3 is based on a maximum concentration of dust in air of 10 mg/m3 recommended by the American Conference of Governmental Industrial Hygienists (ACGIH 2004, Threshold Limit Values and Biological Exposure Indices), and the assumption that 10 percent of the mass of particles are in the respirable PM10 range.

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SB0484\SSCGs Appendix A A-7 October 2013

CD1PEF =

Where:

CD = concentration of dust in air, 1×10-6 (kg/m3) (Cal-EPA, 2011a)

The resulting PEF for the construction and utility maintenance worker is 1×10+6 m3/kg (see Table A-3b).

3.1.2 Vapor Emissions into Outdoor Air

Because VOCs were detected in soil and soil vapor at the Site, individuals could potentially be exposed to vapors migrating through the soil to the surface. Outdoor vapor concentrations are typically negligible considering the significant quantity of ambient air diluting the vapor emissions. Although this pathway is considered potentially insignificant, outdoor air exposures were evaluated for VOCs detected in soil matrix and soil vapor as discussed below.

3.1.2.1 Onsite Residential Scenario

Soil to Outdoor Air

For onsite residents, potential migration of vapors from shallow soil to outdoor air was estimated using the following VF equation, as presented in Section 4.2.3 of the Soil Screening Guidance (USEPA, 2002; Equation 4-8: Derivation of the VF):

( )Ab

1/2residentA

2

24-

soil DP2T D 3.14

cmm 10 Q/C = VF

××××

×

×

The equation for the COC-specific apparent diffusivity, DA, is as follows:

( )H' θ θK P

θ/Dθ H'Dθ = Dawdb

2Twater

33.3wair

33.3a

A ×++××+××

Where:

Dair = COC-specific diffusivity in air (cm2/s); Dwater = COC-specific diffusivity in water (cm2/s); θa = air-filled porosity (0.28 cm3-air/cm3-soil); θw = water-filled porosity (0.15 cm3-water/cm3-soil); θT = total soil porosity (0.43 cm3-air/cm3-soil); H' = COC-specific Henry’s law coefficient (unitless);

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SB0484\SSCGs Appendix A A-8 October 2013

Pb = soil bulk density (1.5 g/cm3); Koc = COC-specific soil organic carbon partition coefficient (cm3/g); and foc = fraction organic carbon in soil (0.006 g/g).

To be consistent with the other SSCG calculations presented in this report, the equations presented below were used. The equation for the COC-specific effective diffusion coefficients for vadose-zone soils, Deff (ASTM, 2004) is as follows:

[ ]2

T

water33.3

wair33.3

aeff θ

Dθ H'Dθ= D ×+××

Where:

Dair = COC-specific diffusivity in air (cm2/s); Dwater = COC-specific diffusivity in water (cm2/s); θa = air-filled porosity (0.28 cm3-air/cm3-soil); θw = water-filled porosity (0.15 cm3-water/cm3-soil); θT = total soil porosity (0.43 cm3-air/cm3-soil); and H' = COC-specific Henry’s law coefficient (unitless).

The equation for the soil to water partition coefficient, Ksw (ASTM, 2004) is as follows:

PbKPbθ H' θ

= K dwasw

×++×

Where:

θa = air-filled porosity (0.28 cm3-air/cm3-soil); H' = COC-specific Henry’s law coefficient (unitless); θw = water-filled porosity (0.15 cm3-water/cm3-soil); Pb = soil bulk density (1.5 g/cm3); and Kd = soil-organic carbon distribution coefficient (where Kd = fraction organic carbon [foc] × organic carbon partition coefficient [Koc]) (cm3/g).

Substituting the equations for Deff and Ksw into the apparent diffusivity DA equation yields the following:

Pb K H'D = D

sw

effA ×

×

Substituting this equation for DA into the VFsoil equation presented above yields the following:

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SB0484\SSCGs Appendix A A-9 October 2013

Pb K

H'DP2

T Pb K

H'D 3.14

cmm 10 Q/C = VF

sw

effb

1/2

residentsw

eff

2

24-

soil

××

××

×

××

××

×

2/1

2

sw

eff

residentsw

eff

b2

24-

soil

Pb K H'D

4

T Pb K

H'D 3.14

P1

cmm 10 Q/C = VF

××

×

×××

××

×

2/1

sw

eff

resident

b2

24-

soil

Pb K H'D

4

T 3.14P1

cmm 10 Q/C = VF

××

×

××

×

1/2

eff

bswresident

b2

24-

soil 'HD4PKT 3.14

P1

cmm 10 Q/C = VF

××

×××

×

×

This final equation was used to estimate the COC-specific VFsoil for onsite residential exposures, where:

Q/C = inverse of mean concentration at center of source (g/m2-sec per kg/m3); Tresident = exposure interval (9.5×10+8 sec = 30 years); Ksw = soil to water partition coefficient, defined above (cm3-water/g-soil); Pb = dry soil bulk density (1.5 g/cm3); Deff = COC-specific effective diffusion coefficient for vadose-zone soils,

defined above (cm2/sec); and H' = COC-specific Henry’s law coefficient (unitless).

A Q/C value of 68.18 g/m2-s per kg/m3 was estimated using the equations presented in Section 3.1.1.2 above.

The derivation of COC-specific VFsoil for onsite residents is presented in Table A-3a.

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SB0484\SSCGs Appendix A A-10 October 2013

3.1.2.2 Onsite Construction and Utility Maintenance Worker Scenarios

Soil to Outdoor Air

For the construction and utility maintenance worker scenario, VOC emissions into a utility trench and subsequent mixing in air were estimated using the volatilization factor (VF) for transport of COCs from soil to outdoor air from the ASTM Standard Guide For Provisional Risk-Based Corrective Action (ASTM, 2004). The soil to outdoor air volatilization factor, VFsoil-OA, is the ratio of the outdoor air exposure point concentration (EPCsoil-OA) to the soil exposure point concentration (EPCsoil):

OA-soil

soilOA-soil EPC

EPC = VF

The COC-specific VFsoil-OA for construction and utility maintenance worker exposures was derived using the following equation (ASTM, 2004):

( )( ) 21

2/1

eff

swCUWambOA-soil CFCF

H' D 4Pb K T 3.14

Pb

DF = VF ××

××

××××

Where:

VFsoil-OA = volatilization factor, surficial soils to outdoor (ambient) air (m3-air/kg-soil);

DFamb = dispersion factor for outdoor (ambient) air (cm/s); Pb = dry soil bulk density (1.5 g/cm3); TCUW = averaging time for surface emission vapor flux (7.9×10+8 sec); Ksw = soil to water partition coefficient (cm3-water/g-soil); Deff = COC-specific effective diffusion coefficient for vadose-zone soils

(cm2/sec); H' = COC-specific Henry’s law coefficient (unitless); CF1 = conversion factor (1×10+3 g/kg); and CF2 = conversion factor (1×10-6 m3/cm3).

The following equation was used to estimate the dispersion factor for outdoor air, DFamb, assuming a trench is 91 centimeters (cm) wide by 457 cm long by 183 cm deep. These dimensions are an estimate of what a typical trench size could be:

AH W U = DF air

amb

××

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SB0484\SSCGs Appendix A A-11 October 2013

Where:

Uair = outdoor air velocity in mixing zone (cm/s); W = width of source-zone area (457 cm; assume length of trench = 15 ft); H = mixing zone height (183 cm; assume depth of trench = 6 ft); and A = source-zone area (assume 4 sidewalls and bottom area of trench =

2.4×10+5cm2).

The outdoor air velocity in the mixing zone, Uair, is estimated using the following equation:

3600 W ACH

= U tair

×

Where:

ACH = air changes per hour (20 hr-1); Wt = length of shortest side of trench (91 cm; assume width of trench = 3 ft);

and 3600 = conversion (1 hour = 3600 seconds).

To develop the air exchange rate, a site-specific computational fluid dynamic (CFD) model was constructed to model air flow within the trench as defined above. CFD models have been used to evaluate air dispersion within urban canyon environments and can provide a more refined evaluation of potential air exchange within a trench. Using the CFD model (Ansys, 2011), air flow was calculated using the geometry of the trench and a conservative (i.e. results in higher trench air concentrations) reference velocity of 1.3 m/s which is the lowest monthly average wind speed reported for Long Beach from the last several years (January 2009 to April 2011) (NCDC, 2011) at a height of 10 m. The CFD model was used to monitor the decrease in concentration of a tracer uniformly distributed in the trench. The model assumed an initial concentration of 1 in the trench and zero within the atmosphere. Convection and diffusion of the tracer out of the trench was evaluated, and the reduction in the concentration in the trench over time was calculated.

The ACH was calculated following the calculation methods presented for the air exchange rate from ASTM (2011):

( ) ( )[ ]12

12

t-tCtlnCtlnACH −

−=

where:

ACH = air exchange rate per hour (hr-1) Ct2 = final tracer concentration at time 2

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SB0484\SSCGs Appendix A A-12 October 2013

Ct1 = initial tracer concentration at time 1 t2 - t1 = time interval of simulation (hr)

An ACH of approximately 20 hr-1 was calculated for the trench. Derivation of the COC-specific VFsoil-OA for the construction and utility maintenance worker is presented in Table A-3a.

Soil Vapor to Outdoor Air

The conceptual exposure scenario for the construction and utility maintenance worker receptor is the same as that considered for the soil to outdoor air scenario – exposure during excavation. The volatilization factor for soil vapor to a trench was calculated using the same relationships as those used for soil, except a soil vapor source term was used. This section details the methodology for deriving the volatilization factor for the soil vapor to outdoor air pathway. The soil vapor to outdoor air VFSV-OA represents the ratio of the outdoor air exposure point concentration (EPCSV-OA) to the soil vapor exposure point concentration (EPCSV) presented in the equation below:

OA-SV

SVOA-SV EPC

EPC = VF

Where:

VFSV-OA = soil vapor to outdoor air volatilization factor (mg/m3 soil vapor per mg/m3outdoor air);

EPCSV-OA = exposure point concentration of COC in outdoor air from soil vapor (mg/m3); and

EPCSV = exposure point concentration, soil vapor (mg/m3).

This section presents the approach used to model vapor migration from the subsurface (using soil vapor data) to outdoor air within a utility trench where workers could potentially be exposed via inhalation. The soil vapor exposure point concentration, EPCSV, was calculated from soil exposure point concentration, EPCsoil, using the following partitioning relationship proposed by Feenstra et al. (1991):

21sw

soilSV CFCFKH'EPC = EPC ×××

Where:

EPCSV = COC concentration in soil vapor (mg/m3); EPCsoil = COC concentration in soil (mg/kg); H' = COC-specific Henry’s law coefficient (unitless);

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SB0484\SSCGs Appendix A A-13 October 2013

Ksw = soil to water partition coefficient, defined above (cm3-water/g-soil); CF1 = conversion factor (1×10-3 kg/g); and CF2 = conversion factor (1×10+6 cm3/m3). The outdoor air concentrations of vapors from soil for a construction and utility maintenance worker can be estimated using the following relationship:

OA-soil

soilOA VF

EPCEPC =

Where:

EPCOA = COC concentration in outdoor air (mg/m3) (either from soil or from soil vapor);

EPCsoil = COC concentration in soil (mg/kg); and VFsoil-OA = volatilization factor, surficial soils to outdoor (ambient) air (m3-air/kg-

soil).

Rearranging these two equations results in the following:

×

××21

sw

OA-soil

SV

OA-soil

soilOA CFCF

1 H'

KVFEPC=

VFEPC = EPC

This equation was then rearranged to calculate the ratio of EPCSV-OA and EPCSV and provide the equation for the soil vapor to outdoor air volatilization factor, VFSV-OA, for a construction and utility maintenance worker:

( )21sw

OA-soilOA-SV

SVOA-SV CFCF

KH'VF

EPCEPC

VF ×××==

Where:

VFSV-OA = soil vapor to outdoor air volatilization factor (µg/m3 per µg/m3); EPCSV-OA = exposure point concentration of COC in outdoor air from soil vapor

(µg/m3); and EPCSV = exposure point concentration, soil vapor (µg/m3).

Derivation of the COC-specific VFSV-OA for the construction and utility maintenance worker is presented in Table A-3b.

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3.1.3 Vapor Emissions into Indoor Air

Because VOCs were detected in sub-slab soil vapor at the Site, onsite residents could potentially be exposed to vapors migrating from the subsurface into indoor air. To investigate the relationship between indoor air and sub-slab soil vapor concentrations, a single regression analysis method was applied to the Site data as described in Appendix B of the main SSCG report. This analysis evaluated the relationship between indoor air concentrations and sub-slab soil vapor concentrations for a filtered dataset of sub-slab soil vapor data with concentrations ≥100 µg/m3. Based on the analysis, an upper-bound vapor intrusion attenuation factor of 0.001 was identified. This conservative upper-bound vapor intrusion attenuation factor was used to derive sub-slab soil vapor SSCGs described in Section 5.1 below.

4.0 TOXICITY ASSESSMENT

The toxicity assessment characterizes the relationship between the magnitude of exposure to a COC and the nature and magnitude of adverse health effects that may result from such exposure. Consistent with regulatory risk assessment policy, adverse health effects resulting from potential chemical exposures are classified into two broad categories: carcinogens and noncarcinogens. Toxicity criteria are generally developed based on the threshold approach for noncarcinogenic effects and the non-threshold approach for carcinogenic effects.

For carcinogens, it is assumed that there is no level of exposure that does not have a finite possibility of causing cancer (i.e., there is no threshold dose for carcinogenic effects). That is, a single exposure of a carcinogen may, at any level, result in an increased probability of developing cancer. For chemicals exhibiting noncarcinogenic effects, it is believed that organisms have protective mechanisms that must be overcome before the toxic endpoint results (i.e., there is a threshold dose for these effects). For example, if a large number of cells perform the same or similar functions, it would be necessary for significant damage or depletion of these cells to occur before a toxic effect could be seen. As a result, a range of exposures exists from zero to some finite value that can be tolerated by the organism with essentially no chance of expression of adverse effects (USEPA, 1989). Some chemicals may elicit both carcinogenic and noncarcinogenic effects.

The key dose-response criteria are (i) cancer slope factors (CSFs) or inhalation unit risk factors (IURs) for estimating cancer risks from exposure to carcinogens; and (ii) reference doses (RfDs) or inhalation reference concentrations (RfCs) for estimating hazard from exposure to noncarcinogens. In addition, Cal-EPA Office of Environmental Health Hazard Assessment (OEHHA; Cal-EPA 2013) has developed chronic Reference Exposure Levels (RELs) for noncarcinogenic effects from inhalation exposures. For developing SSCGs, cancer toxicity criteria (except for trichloroethene [TCE] as discussed below) were selected from the following sources, in order of preference:

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1) Cal-EPA OEHHA Toxicity Criteria Database, online (Cal-EPA, 2013); 2) USEPA’s (2013a) Integrated Risk Information System (IRIS); 3) USEPA RSLs for Chemical Contaminants at Superfund Sites (USEPA, 2013b); 4) USEPA National Center of Environmental Assessment (USEPA, 2013b); 5) Agency for Toxic Substances Disease Registry (as reported in USEPA, 2013b); and 6) Health Effects Assessment Summary Tables (as reported in USEPA, 2013b).

The noncancer toxicity criteria were selected from the following sources, in order of preference:

1) USEPA’s (2013a) IRIS database; and 2) Cal-EPA OEHHA Toxicity Criteria Database online (Cal-EPA, 2013).

For TCE, the USEPA inhalation IUR of 4.1×10-6 (μg/m3)-1 and oral CSF of 4.6×10-2 (mg/kg-day)-1 were used for derivation of SSCGs, which are consistent with the most recent USEPA published toxicity values for TCE (USEPA, 2011). Moreover, because TCE is considered carcinogenic by a mutagenic mode of action for kidney effects, separate cancer risk equations are presented for mutagens as outlined in the USEPA RSL User’s Guide (USEPA, 2013c). These equations were used for TCE for the residential scenario.

At the present time, Cal-EPA and USEPA have only developed toxicity criteria for the oral and inhalation routes of exposure. As recommended by Cal-EPA and USEPA, in the absence of values specific to the dermal route, the oral toxicity criteria were used to evaluate dermal exposures. In addition, route-to-route extrapolation between ingestion and inhalation routes of exposure was used for those chemicals for which toxicity criteria are extrapolated in the USEPA Region 9 Preliminary Remedial Goal (PRG) table (USEPA, 2004a). This can be considered a conservative approach as current USEPA RSL guidance (USEPA, 2013b) does not include the route-to-route extrapolation. For some of the COCs, neither Cal-EPA nor USEPA have identified a toxicity value. In these cases, a surrogate chemical approach was employed in which the toxicity value developed for a structurally similar compound was assigned to the COC which is lacking the toxicity value (e.g., hexane for heptane).

Toxicity values for TPH have not been published by Cal-EPA OEHHA or USEPA. Toxicity factors for TPH have been suggested by Cal-EPA Department of Toxic Substances Control (Cal-EPA, 2009a). Even though these toxicity factors for TPH have not gone through the same level of peer review as the other toxicity factor references used for the other COCs, the toxicity factors presented in Cal-EPA DTSC TPH guidance were used for TPH SSCGs. These values were presented in a letter from Geosyntec dated August 15, 2011 describing the derivation of RBSLs for TPH (TPH RBSL Letter; Geosyntec, 2011), which was approved by the LARWQCB on November 14, 2011.

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SB0484\SSCGs Appendix A A-16 October 2013

The traditional RfD approach to the evaluation of chemicals is not applied to lead because most adverse human health effects data associated with exposure to lead have been correlated with concentrations of lead in blood and not with intake of lead by an individual (Cal-EPA, 1996). In the absence of RfDs, Cal-EPA uses a 1 microgram per deciliter (μg/dL) benchmark for source-specific incremental change in blood lead levels for protection of children and fetuses (Cal-EPA, 2007) as the revised health criterion for lead. This benchmark is the estimated incremental increase in a child’s blood lead level that would reduce their IQ by up to 1 point. Based on this revised benchmark of 1 µg/dL, Cal-EPA has recommended a revised residential California Human Health Screening Level (CHHSL) of 80 mg/kg.

For the resident potentially exposed to deeper soils for a limited time and the construction and utility maintenance worker, the SSCGs were calculated using the CHHSL methodology for residential and industrial/commercial worker adjusted for exposure frequency and ingestion rate using the Adult Lead Model (ALM) as recommended by Cal-EPA. According to USEPA's 2003 guidance Assessing Intermittent or Variable Exposures at Lead Sites and supporting documentation for the ALM, a minimum exposure frequency and exposure duration of 1 day per week for 3 months should be used to account for the model’s steady-state assumption. In addition, a central tendency ingestion rate value of 100 mg/day is recommended for construction workers. Therefore, these input parameters were used for adult lead exposures. For the residential exposure it was assumed that an adult resident would be the most likely individual to contact deeper soils while conducting activities such as planting a tree.

A summary of the cancer and noncancer toxicity criteria for the COCs is presented in Table A-4.

5.0 SITE-SPECIFIC CLEANUP GOALS

This section presents the methodology that was used to derive SSCGs for onsite residents and for the construction and utility maintenance worker that may be present at the Site and have the potential to be exposed to residual chemicals present in soil and soil vapor.

5.1 Risk-based SSCG Methodology

Deriving risk-based SSCGs for COCs in soil, sub-slab soil vapor, and soil vapor requires information regarding the level of human intake of the COC (exposure assessment), the relationship between intake of the chemical and its toxicity (toxicity assessment), and the acceptable target risk. The sections below present the equations that were used in the development of the SSCGs for soil, sub-slab soil vapor, and soil vapor. The methodology that was used to derive SSCGs is based principally on guidelines provided by the USEPA in Risk Assessment Guidance for Superfund, Volume I, Human Health Evaluation Manual

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(Part A), Interim Final (USEPA, 1989) and in the Soil Screening Guidance (USEPA, 2002) and by the DTSC in Preliminary Endangerment Assessment Guidance Manual and in Recommended DTSC Default Exposure Factors For Use In Risk Assessment At California Military Facilities (Cal-EPA, 1999 and 2011a).

Various demarcations of acceptable risk have been established by regulatory agencies. The National Oil and Hazardous Substances Pollution Contingency Plan (NCP; 40 CFR 300) indicates that lifetime incremental cancer risks posed by a site should not exceed a range of one in one million (1×10-6) to one hundred in one million (1×10-4) and noncarcinogenic chemicals should not be present at levels expected to cause adverse health effects (i.e., a Hazard Index [HI] greater than 1). In addition, other relevant guidance (USEPA, 1991b) states that sites posing a cumulative cancer risk of less than 10-4 and hazard indices less than unity (1) for noncancer endpoints are generally not considered to pose a significant risk warranting remediation. The California Hazardous Substances Account Act (HSAA) incorporates the NCP by reference, and thus also incorporates the acceptable risk range set forth in the NCP. The Safe Drinking Water and Toxic Enforcement Act of 1986 (California Proposition 65) regulates chemical exposures to the general population and is based on an acceptable risk level of 1×10-5. The DTSC considers the 1×10-6 risk level as the generally accepted point of departure for unrestricted land use.

Under most situations, cancer risks in the range of 1×10-6 to 1×10-4 may be considered to be acceptable with cancer risks less than 10-6 considered insignificant. The risk range between 10-6 and 10-4 is commonly called the “discretionary risk range.” This risk range is in addition to the background risk of Americans in the general population developing cancer from causes unrelated to a Site-specific exposure. The background risk is one chance in three (0.3 or 3×10-1) for an American female, and one chance in two (0.5 or 5×10-1) for an American male of eventually developing cancer (ACS, 2013).

A target cancer risk level of 1×10-6 was used to derive SSCGs for onsite residents. For the construction and utility maintenance worker, the SSCGs were derived using a target cancer risk level of 1×10-5 (the “mid-point” of the risk management range and commonly used for managing commercial/industrial land uses). A target HI of 1 was used for noncarcinogens for all exposure scenarios. These risk levels are used to provide context to the risk results and to support the following discussion which focuses on those pathways and chemicals that contribute the majority to the risk estimates. It is acknowledged that additional risk management considerations such as technical feasibility, economic, social, political, and legal factors may be part of the final risk management decision. The results of the risk characterization are really the starting point for risk management considerations for a site (USEPA, 1995).

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5.1.1 SSCGs Based on Cancer Health Effects

The SSCG equations below describe the established relationship between estimated intake, toxicity, and potential risk for cancer health effects (USEPA, 1989).

For COCs in soil:

( ) ( ) ( ) ( )soilinh,dermaloraloralc-soil ECIURIFIFCSF

TRSSCG×++×

=

For COCs in soil vapor for the construction and utility maintenance worker:

( ) ( )OA-SVc-sv ECIUR

TRSSCG×

=

For COCs in sub-slab soil vapor for the onsite resident:

( ) ( )IA-SV-SSc-sv-ss ECIUR

TRSSCG×

=

Where:

SSCGsoil-c = Site-specific cleanup goal for soil based on cancer effects (mg/kg); TR = target cancer risk level (unitless); CSForal = cancer slope factor for oral (ingestion and dermal contact) exposures

(mg/kg·d)-1; IForal = intake factor for ingestion (kg soil per kg body weight per day); IFdermal = intake factor for dermal contact (kg soil per kg body weight per day); IUR = inhalation unit risk factor (µg/m3)-1; ECinh,soil = exposure concentration for inhalation of COCs from soil (mg/m3 per

mg/kg); SSCGsv-c = Site-specific cleanup goal for soil vapor to outdoor air based on cancer

effects (mg/m3); ECSV-OA = exposure concentration for outdoor inhalation (mg/m3 per mg/m3); SSCGss-sv-c = Site-specific cleanup goal for sub-slab soil vapor to indoor air based on

cancer effects (mg/m3); and ECSS-SV-IA = exposure concentration for indoor inhalation (mg/m3 per mg/m3).

The formulas for developing the soil intake factors for ingestion and dermal contact, as well as for developing the exposure concentrations for soil, sub-slab soil vapor, and soil vapor are presented in Tables A-5 through A-9. The exposure parameters that were used to estimate

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the intake factors and exposure concentrations are presented in Table A-1. The SSCGs for soil and sub-slab soil vapor are presented in Tables A-10 and A-11, respectively, for the onsite resident. The SSCGs for soil and soil vapor are presented in Tables A-12 and A-13, respectively, for the construction and utility maintenance worker. SSCG calculations are presented in Attachment A1.

5.1.2 SSCGs Based on Noncancer Health Effects

The SSCG equations below describe the established relationship between estimated intake, toxicity, and risk for noncancer health effects (USEPA, 1989).

For COCs in soil:

+

+

=

RfCEC

RfDIF

RfDIF

THISSCGsoilinh,

oral

dermal

oral

oralnc-soil

For COCs in soil vapor for the construction and utility maintenance worker:

=

RfCEC

THISSCGOA-SV

c-sv

For COCs in sub-slab soil vapor for the onsite resident:

( ) ( )IA-SV-SSnc-sv-ss ECIUR

TRSSCG×

=

Where:

SSCGsoil-nc = Site-specific cleanup goal for soil based on noncancer effects (mg/kg); THI = target noncancer hazard index (unitless); IForal = intake factor for ingestion (kg soil per kg body weight per day); RfDoral = noncancer reference dose for oral (ingestion and direct-contact)

exposures (mg/kg·d); IFdermal = intake factor for dermal contact (kg soil per kg body weight per day); ECinh,soil = exposure concentration for inhalation of COCs from soil (mg/m3 per

mg/kg from soil); RfC = noncancer reference concentration for inhalation exposure (mg/m3);

SSCGsv-nc = Site-specific cleanup goal for soil vapor to outdoor air based on noncancer effects (mg/m3);

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ECSV-OA = exposure concentration for outdoor inhalation of COCs (mg/m3 soil vapor per mg/m3 outdoor air);

SSCGss-sv-nc = Site-specific cleanup goal for sub-slab soil vapor to indoor air based on noncancer effects (mg/m3); and

ECSS-SV-IA = exposure concentration for indoor inhalation (mg/m3 per mg/m3).

The formulas for developing the soil intake factors for ingestion and dermal contact, as well as for developing the exposure concentrations for soil, sub-slab soil vapor, and soil vapor are presented in Tables A-5 through A-9. The exposure parameters that were used to estimate the intake factors and exposure concentrations are presented in Table A-1. The SSCGs for soil and sub-slab soil vapor are presented in Tables A-10 and A-11, respectively, for the onsite resident. The SSCGs for soil and soil vapor are presented in Tables A-12 and A-13, respectively, for the construction and utility maintenance worker. SSCG calculations are presented in Attachment A1.

5.1.3 TPH Fraction-Specific SSCGs

TPH compounds include a wide range of chemicals that are found in crude oils, petroleum products, and other petroleum-related materials. Because TPH mixtures can encompass a large range of hydrocarbons, chemical properties and environmental behavior vary widely among the many hundreds of compounds present in these mixtures. Methods to evaluate potential risks associated with TPH analytical results have been published in state and national working group guidance documents including the DTSC (Cal-EPA, 2009a), the Total Petroleum Hydrocarbon Criteria Working Group (TPHCWG, 1997ab; 1998ab; 1999), and Massachusetts Department of Environmental Protection (MADEP, 2002; 2003). Approaches presented in these documents were used to develop SSCGs for comparison to TPH data collected at the Site.

TPH may refer to a variety of products or wastes, but for the soil samples collected at the Site and analyzed by USEPA Method 8015B (M)3, analytical results are grouped into three product ranges according to the number of carbon chain atoms:

3 Results from USEPA Method 8015B (M) are equivalent to USEPA Method 8015C for TPH analysis.

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TPH Product Range Carbon Chain Range

TPHgasoline (TPHg) C4 – C12 TPHdiesel, (TPHd) C10 – C22 TPHmotor oil (TPHmo) C17 – C44

TPH product range concentrations reported (i.e., TPHg, TPHd or TPHmo) do not necessarily indicate the presence of gasoline, diesel, or motor oil, only that there are hydrocarbons present that fall in those specific carbon-chain length ranges. In addition, there is some variability in the carbon chain range reported by the analytical laboratories.

For each of the carbon chain ranges, two different types of compounds or fractions may be present: aliphatic or aromatic. Therefore, TPH fractionation analysis was performed on soil and soil vapor samples to refine the TPH characterization. In the TPH fractionation analysis, aliphatic and aromatic fractions are quantified consistent with the Cal-EPA Interim TPH Guidance (Cal-EPA, 2009a). These TPH fractions are:

TPH Product Range Aliphatic Fraction Aromatic Fraction

Light C5 – C8 C6 – C8

Medium C9 – C18 C9 – C16

Heavy C19 – C32 C17 – C32 Both types of analyses (i.e., product range analysis and fractionation analysis) have been conducted at the Site, and the TPH fractionation analytical results are used in the derivation of SSCGs for product-range TPH results as described in later sections.

The fraction-specific SSCGs for soil, sub-slab soil vapor, and soil vapor are presented below:

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Notes: • EF: exposure frequency; 350 days/year for a typical resident and 4 days/year for a

resident who infrequently contacts subsurface soils. • “ – “ not calculated • SSCGs for the C6-C8 aromatic fraction are not calculated because individual

constituents in this fraction (i.e., benzene, toluene, ethylbenzene) were analyzed. • Sub-slab soil vapor and soil vapor SSCGs for the C19-C32 aliphatic and C17-C32

aromatic fractions are not calculated because the volatility of these fractions are low and no RfC is available for these fractions.

5.1.4 SSCGs for TPH Product Ranges

Fraction-specific soil, sub-slab soil vapor, and soil vapor SSCGs for the different TPH fraction ranges presented above are used to derive soil, sub-slab soil vapor, and soil vapor SSCGs for TPH product ranges: TPH gasoline (TPHg), TPH diesel (TPHd), and TPH motor oil (TPHmo). Fractionation results from soil samples collected through February 24, 2011 were used to evaluate the aromatic/aliphatic composition of the different TPH ranges. The analytical results correlation analysis was presented in a letter to the RWQCB dated August 15, 2011 (Geosyntec, 2011). The aromatic/aliphatic ratios for each TPH range are as follows:

• Light Range TPH = 0.03

• Medium Range TPH = 1.3

• Heavy Range TPH = 1.0

The carbon number ranges used in the TPH product range (TPHg, TPHd, and TPHmo) analyses are different from those used in the TPH fractionation analyses. As a result, there is overlap in the product range carbon-chain values and what is encompassed by the fraction results. Consequently, the contribution to the TPH product range from the different aliphatic and aromatic fractions was estimated based on a comparison of the carbon ranges

Aliphatic: C5-C8 7.1E+02 6.2E+04 7.3E+05 8.3E+02 1.2E+09Aliphatic: C9-C18 1.4E+03 1.3E+05 3.1E+05 1.6E+03 1.2E+08Aliphatic: C19-C32 1.1E+05 1.0E+07 -- 5.5E+06 --Aromatic: C6-C8 -- -- -- -- --Aromatic: C9-C16 6.0E+02 5.3E+04 5.2E+04 7.5E+02 6.7E+06Aromatic: C17-C32 1.7E+03 1.5E+05 -- 8.3E+04 --

TPHFractions

SoilSSCG(EF4)

(mg/kg)

SoilSSCG

(mg/kg)

Soil VaporSSCG(µg/m3)

Sub-SlabSoil Vapor

SSCG(µg/m3)

Construction and Utility Maintenance Worker

Onsite Resident

SoilSSCG

(EF350)(mg/kg)

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SB0484\SSCGs Appendix A A-23 October 2013

encompassed by the different analyses (Geosyntec, 2011). The following contributions were assumed:

• TPHg: 50% contribution from the light fractions and 50% contribution from the medium fractions;

• TPHd: 50% contribution from the medium fractions and 50% contribution from the heavy fractions; and

• TPHmo: 100% contribution from the heavy fractions.

The following equation was used to derive the SSCGs for TPHg, TPHd, and TPHmo:

1

modg SSCGFraction %Fraction %100)TPH ,TPH ,(TPHSSCG

×= ∑

Where:

Fraction % = % contribution of TPH fraction to product range TPH (unitless); and

Fraction SSCG = Site-specific cleanup goal determined above for the different TPH fraction (soil in mg/kg; sub-slab soil vapor and soil vapor in µg/m3).

The following table summarizes the SSCG calculations for TPHg, TPHd, and TPHmo:

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SB0484\SSCGs Appendix A A-24 October 2013

Note: Because individual C6-C8 aromatic constituents are evaluated separately, SSCG for C9-C16 aromatic fraction used for evaluation

5.2 Background-based SSCG Methodology

Metals may be naturally occurring in the environment. According to the DTSC (Cal-EPA DTSC 1997, 2009a, 2009c, 2009d, 2011b) for naturally occurring materials such as metals, an evaluation of background concentrations is important to evaluate whether the metals concentrations on the property are consistent with naturally occurring levels in the area, and whether they should be included in the risk assessment. If concentrations of a metal are within background, the metal is not considered a COC and is not evaluated further.

In addition to metals, cPAHs can be naturally occurring or present at ambient levels not associated with former Site activities. A background dataset and methodology has been developed by DTSC that can be used to evaluate the presence of cPAHs in soil as benzo(a)pyrene equivalents (Cal-EPA DTSC, 2009c). Soil samples collected from the Site were analyzed by USEPA Method 8270 and USEPA Method 8270SIM and include the carcinogenic PAHs (cPAHs) that are commonly considered in the benzo(a)pyrene

SoilSSCG(EF350)(mg/kg)

SoilSSCG(EF4)

(mg/kg)

Sub-SlabSoil Vapor

SSCG(µg/m3)

SoilSSCG(mg/kg)

Soil VaporSSCG(µg/m3)

TPH-gLight Fraction 50% 0.03

Aliphatic: C5-C8 49% 7.1E+02 6.2E+04 7.3E+05 8.3E+02 1.2E+09Aromatic: C6-C8 1% 6.0E+02 5.3E+04 5.2E+04 7.5E+02 6.7E+06

Medium Fraction 50% 1.3Aliphatic: C9-C18 22% 1.4E+03 1.3E+05 3.1E+05 1.6E+03 1.2E+08Aromatic: C9-C16 28% 6.0E+02 5.3E+04 5.2E+04 7.5E+02 6.7E+06

7.6E+02 6.6E+04 1.4E+05 9.0E+02 2.2E+07TPH-d

Medium Fraction 50% 1.3Aliphatic: C9-C18 22% 1.4E+03 1.3E+05 3.1E+05 1.6E+03 1.2E+08Aromatic: C9-C16 28% 6.0E+02 5.3E+04 5.2E+04 7.5E+02 6.7E+06

Heavy Fraction 50% 1.0Aliphatic: C19-C32 25% 1.1E+05 1.0E+07 -- 5.5E+06 --Aromatic: C17-C32 25% 1.7E+03 1.5E+05 -- 8.3E+04 --

1.3E+03 1.1E+05 1.6E+05 1.9E+03 2.3E+07TPH-mo

Heavy Fraction 100% 1.0Aliphatic: C19-C32 49% 1.1E+05 1.0E+07 -- 5.5E+06 --Aromatic: C17-C32 51% 1.7E+03 1.5E+05 -- 8.3E+04 --

3.3E+03 2.9E+05 -- 1.6E+05 --

TPH-g =

TPH-d =

TPH-mo =

Construction and Utility Maintenance Worker

TPHProduct Ranges

% Contribution to Product Range TPH

Aromatic/ Aliphatic

Ratio

% Contribution

of TPH Fraction

Onsite Resident

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equivalents calculation as presented in the Cal-EPA DTSC background PAH methodology document (Cal-EPA DTSC, 2009c) as well as other PAHs that are considered carcinogenic (e.g. naphthalene).

Benzo(a)pyrene equivalent concentrations are calculated for this Site data using a toxicity equivalency factor (TEF) approach. TEFs are based on shared characteristics that can be used to rank the class of chemicals by carcinogenic potency. The ranking procedure is accomplished by referencing the chemicals to the characteristics and potency of benzo(a)pyrene, which is often used as the reference chemical for expressing the carcinogenic potency of the other cPAHs. Therefore, the cPAHs are indexed to benzo(a)pyrene to generate their TEFs. The TEFs are listed below for the seven cPAHs based on Cal-EPA guidance (Cal-EPA, 2009c):

cPAHs TEFs

Benzo(a)anthracene 0.1

Benzo(a)pyrene 1.0

Benzo(b)fluoranthene 0.1

Benzo(k)fluoranthene 0.1

Chrysene 0.01

Dibenzo(a,h)anthracene 0.34

Indeno(1,2,3-cd)pyrene 0.1 Background-based SSCGs for metals and cPAHs were developed for the Site consistent with USEPA and Cal-EPA methodologies as presented in Attachment A2 using local and regional background datasets. The background-based SSCGs are presented in Table A-14. These values represent Background Threshold Values (BTVs) which are single-point background thresholds that represent an upper plausible limit of the background distributions of individual compounds (USEPA, 2009a; 2009b; Helsel, 2005). These values are commonly used to evaluate site data and to determine if site concentrations are above background. In addition to the BTVs, Site data can be evaluated using guidance from Cal-EPA (Cal-EPA, 1997) to determine if Site concentrations are consistent with background.

Due to the preponderance of Site data (over 10,000 samples and 265 individual study areas), a streamlined approach was developed to evaluate background at the Site. In the first step, an upper-bound concentration from Site samples will be compared to the BTVs to evaluate whether onsite metal or cPAH concentrations are above or below background concentrations. In the second step, for chemicals that are present at concentrations above the BTV, a one-sample proportion test will be used to compare the Site data with the BTVs. This is consistent with agency guidance that states that when BTVs and cleanup standards

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are known, one-sample hypotheses are used to compare site data with the known and pre-established threshold values (USEPA, 2010). If warranted, additional analysis using Site data and methodologies using guidance from Cal-EPA (Cal-EPA, 1997) will be used.

If onsite concentrations are below background, the area will not be evaluated further in the risk assessment process for that chemical. The background comparison will be conducted as part of the full Human Health Risk Assessment (HHRA) that will be conducted for preparation of the RAP. It is anticipated that the HHRA will be included in the RAP.

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5.3 Soil Leaching to Groundwater Methodology

5.3.1 The LARWQCB Attenuation Factor Method for VOCs

The Attenuation Factor Method for VOCs, described in the Los Angeles Regional Water Quality Control Board “Interim Site Assessment & Cleanup Guidebook” (the Water Board approach, LARWQCB, 1996), provides an approach to estimate soil cleanup goals for the protection of groundwater quality based on physical properties of a site and chemical properties of the VOCs. A soil-to-soil-leachate attenuation factor is calculated in a three-step process:

1) Estimate a liquid phase contaminant concentration (Ci) that is in equilibrium with the solid phase and the air phase in the vadose zone soil, using the site-specific soil physical parameters as well as the partitioning coefficients between the three phases (i.e., soil/water partitioning coefficient, Kd, and the Henry’s Law Constant, KH):

𝐶𝑖 =𝐶𝑇

𝜃𝑊 + 𝜌𝑏𝑓𝑜𝑐𝐾𝑜𝑐 + (𝑛 − 𝜃𝑊)𝐾𝐻

where CT is the total soil concentration, θW is the soil water content by volume, n is the soil porosity, and foc is the soil organic content. Then an AF, the ratio of the liquid phase concentration and the total soil concentration, can be calculated as:

AF = 1 + ρb

θWfocKoc + (n − θW) KH

θW

for chemicals where site-specific Kd is available, the focKoc term in the above equation can be simply replaced by Kd.

2) Adjust the AF due to distance above groundwater. The hydrogeological information in the Los Angeles area suggests that the soil column can be divided into three zones: (1) a “smear zone”, due to groundwater level fluctuation, immediately above groundwater table (0 - 40 ft above water table); (2) a second modification zone between 40 and 150 ft above water table; (3) No-modification zone (distance greater than 150 ft above water table). Based on a VLEACH modeling study, the AF at the top of the smear zone is reduced as one-tenth of the original AF calculated in step one. Subsequently the AF at each specific depth (AFD) can be quantified by linear interpolation. The equations used are listed below:

For D>150: 𝐴𝐹𝐷 = 𝐴𝐹

For 40<D≤150: 𝐴𝐹𝐷 = �0.9(𝐷−40)110

+ 0.1� × 𝐴𝐹

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For D≤40: 𝐴𝐹𝐷 = 𝐷(0.1𝐴𝐹−140

) + 1

where D is the total depth of the site soil.

3) Modify AFD according to site lithology. The steady infiltration rates of different soil types are reported to have a 1:5:10:20 ratio between clay:silt/clay:sand/silt:gravel/sand. Therefore, once the site lithology is known, the final AF (AFT) can be obtained by adjusting AFD based on the following equation:

AFT = AFDD�TGR20

+ TSA10

+ TSI5

+ TCL1�

where D is the total depth of the site soil, TRG, TSA, TSI, and TCL are the total depths of gravel, sand, silt/clay, and clay, respectively. Note that since site-specific soil physical data are available and used in Step One, and the Site soil type is assumed to be entirely sand, Step Three was not conducted in the calculation for the Kast Site to avoid double-counting the effect of soil type.

5.3.2 The USEPA RSL Soil Cleanup Goal Method for Metals

Since the LARWQCB approach is only suitable for VOCs, the USEPA Regional Screening Level (RSL) approach (USEPA, 2013c) for the soil-to-groundwater pathway soil screening level was adapted for metals SSCG development. The RSL approach employs a partitioning equation that considers both the contaminant equilibrium between the solid, liquid, and air phase in soil and the dilution of leachate when entering the groundwater. The equation is listed below:

𝐶𝑐𝑙𝑒𝑎𝑛𝑢𝑝 = 𝐶𝑊 × 𝐷𝐴𝐹 × �𝐾𝑑 + 𝜃𝑊+𝜃𝑎𝐾𝐻𝜌𝑏

Where Cw is the groundwater quality criterion, DAF is the leachate-to-groundwater dilution attenuation factor (described in the next section), Kd is the soil/water partitioning coefficient, and θa is air-filled porosity. Kd can be calculated by:

𝐾𝑑 = 𝐾𝑜𝑐 × 𝑓𝑜𝑐

5.3.3 SAM Model DAF Method

The Soil Attenuation Model (SAM), developed by Connor, et al., 1997, uses a simple box model to quantify the dilution of dissolved COCs when soil leachate mixes with lateral groundwater flow. When leachate vertically migrates to the water-bearing unit through infiltration, a contaminant will be diluted by the lateral groundwater flow in the mixing zone. Assuming perfect mixing, the groundwater concentration can be calculated based on

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SB0484\SSCGs Appendix A A-29 October 2013

mass balance. Infiltration rate, mixing zone height, and groundwater Darcy velocity are required for such a mass-balance accounting.

To estimate the infiltration rate (If), an empirical relationship between net infiltration and annual precipitation has been developed based upon a database of 140 sites from 18 geographic regions (Connor, et al., 1997). For the sand soil type of the Site, the relationship is:

𝐼𝑓 = 0.0018 × 𝑃2

where P is the annual precipitation.

To estimate the mixing zone height (δgw), the following equation (adapted from the USEPA Soil Screening Guidance) is used:

𝛿𝑔𝑤 = �2 ∙ 𝛼𝑣 ∙ 𝑊 + 𝑏[1 − 𝑒𝑥𝑝 (−𝐼𝑓∙𝑊𝑈𝑔𝑤∙𝑏

)]

where αv is the vertical groundwater dispersivity, W is the lateral width of affected soil zone in direction of groundwater flow, b is the aquifer thickness, Ugw is the groundwater Darcy velocity. In the case where equation 5 results in a δgw that is larger than the aquifer thickness b, b is used as the mixing zone height.

αv, and Ugw are calculated by:

𝛼𝑉 = 0.0056 × 𝑊

𝑈𝑔𝑤 = 𝐾 ∙ 𝑖

where K is the hydraulic conductivity, and i is the hydraulic gradient of the water-bearing unit.

Finally the Dilution Attenuation Factor (DAF) can be obtained by:

𝐷𝐴𝐹 = 1 + 𝑈𝑔𝑤∙𝛿𝑔𝑤𝐼𝑓∙𝑊

Parameters used for the LARWQCB and USEPA methods are listed in Table A-15. SAM DAF calculation is presented in Table A-16. The site-specific cleanup goals based on soil leaching to groundwater are summarized in Table A-17, and the detailed calculations are appended in Attachment A-3.

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SB0484\SSCGs Appendix A A-30 October 2013

5.3.4 Example Calculation

An example calculation is provided below for benzene:

1). AF calculation.

First, the unadjusted AF is calculated using Site soil data and the physical properties of benzene:

𝐴𝐹 = 1 +𝜌𝑏𝜃𝑊

𝐾𝑑 + (𝑛 − 𝜃𝑊)𝐾𝐻𝜃𝑊

= 1 +1.54 𝑔/𝑐𝑚3

0.239× 28

𝑚𝐿𝑔

+ (0.421 − 0.239)0.2270.239

= 180

Second, the depth adjusted AFD is calculated. For example, for 50 ft depth:

𝐴𝐹𝐷,50 = �0.9(𝐷 − 40)

110+ 0.1� × 𝐴𝐹 = �

0.9(50 − 40)110

+ 0.1� × 180

= 33

The Site groundwater table is between 50 to 60 ft bgs. Therefore, as a conservative measure, the AFD at 50 ft of 33 is used to calculate the soil cleanup goal.

2). DAF calculation

The annual precipitation at the Site is estimated as 34.5 cm/yr based on the meteorological data from the Torrance, CA weather Station in the SESOIL meteorological database. The infiltration rate is then calculated as:

𝐼𝑓 = 0.0018 × 34.5 𝑐𝑚/𝑦𝑟2 = 0.0214 𝑚/𝑦𝑟

The lateral width of affected soil zone in the direction of the groundwater flow is estimated as 184 m based on the area of highest benzene concentrationsfrom 2011 2nd quarter and 2013 2nd quarter groundwater monitoring data. Using this, the vertical groundwater dispersivity is obtained:

𝛼𝑉 = 0.0056 × 184𝑚 = 1.03 𝑚

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SB0484\SSCGs Appendix A A-31 October 2013

Using a default hydraulic conductivity of 2.5 m/day for the fine sand soil type (Todd, 1980), and the Site hydraulic gradient of 0.002 m/m (estimated using the 2013 2nd quarter groundwater monitoring data), groundwater Darcy velocity is calculated as:

𝑈𝑔𝑤 = 𝐾 ∙ 𝑖 = 2.5 𝑚𝑑𝑎𝑦

× 0.002 𝑚𝑚

= 1.8 𝑚𝑦𝑟

The aquifer thickness, b, was estimated as 11.3 m assuming the top of the Gage aquifer is the lower boundary of the shallow water-bearing unit. Subsequently the mixing zone height, δgw, can be obtained:

𝛿𝑔𝑤 = �2 ∙ 𝛼𝑣 ∙ 𝑊 + 𝑏[1 − 𝑒𝑥𝑝 (−𝐼𝑓 ∙ 𝑊𝑈𝑔𝑤 ∙ 𝑏

)]

= √2 ∙ 1.03𝑚 ∙ 184𝑚 + 11.3𝑚 × [1 − 𝑒𝑥𝑝 (−0.0214𝑚/𝑦𝑟 ∙ 184𝑚

1.8𝑚/𝑦𝑟 ∙ 11.3𝑚)]

= 21.4 𝑚

Since this value is larger than the aquifer thickness, the aquifer thickness, 11.3 m, is then used as the mixing zone height. The DAF is finally calculated as:

𝐷𝐴𝐹 = 1 + 𝑈𝑔𝑤 ∙ 𝛿𝑔𝑤𝐼𝑓 ∙ 𝑊

= 1 +1.8𝑚/𝑦𝑟 ∙ 21.4𝑚

0.0214𝑚.𝑦𝑟 ∙ 184𝑚= 6.24

3). Soil cleanup goal calculation

For benzene, the California MCL is 1 µg/L, therefore the soil cleanup goal is finally calculated as:

𝐶𝑐𝑙𝑒𝑎𝑛𝑢𝑝 =𝑀𝐶𝐿 × 𝐷𝐴𝐹 × 𝐴𝐹

𝜌𝑏=1µ𝑔/𝐿 × 6.24 × 33

1.54 𝑘𝑔/𝐿= 133 𝑚𝑔/𝑘𝑔

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SB0484\SSCGs Appendix A A-32 October 2013

6.0 REFERENCES

American Cancer Society (ACS) 2013. Cancer Facts and Figures. Website address: http://www.cancer.org/research/cancerfactsfigures/cancerfactsfigures/cancer-facts-figures-2013

American Society for Testing and Materials (ASTM) 2004. Standard Guide for Risk-Based Corrective Action. E2081-00 (Reapproved 2004).

ASTM 2011. Standard Test Method for Determining Air Change in a Single Zone by Means of a Tracer Gas Dilution. E741-11.

Ansys 2011. CFX Reference Guide, Release 14.0, Ansys, Inc., Canonsburg, PA. November 2011.

California Environmental Protection Agency (Cal-EPA) 2013. Toxicity Criteria Database. URL: http://www.oehha.org/risk/chemicalDB/index.asp. Office of Environmental Health Hazard Assessment (OEHHA).

Cal-EPA DTSC 2011a. Human Health Risk Assessment (HHRA) Note. Office of Human and Ecological Risk (HERO) HHRA Note Number 1. Recommended DTSC Default Exposure Factors For Use In Risk Assessment At California Hazardous Waste Sites and Permitted Facilities. Issue Date: May 20, 2011.

Cal-EPA 2011b. Human Health Risk Assessment (HHRA) Note. Office of Human and Ecological Risk Division (HERD) HHRA Note Number 4. Screening Level Human Health Risk Assessments. Issue Date: June 9, 2011.

Cal-EPA 2010. Public Health Goals for Chemicals in Drinking Water: Benzo(a)Pyrene. Office of Environmental Health Hazard Assessment (OEHHA). September 2010.

Cal-EPA DTSC 2009a. Interim Guidance: Evaluating Human Health Risks from Total Petroleum Hydrocarbons. URL: www.dtsc.ca.gov/AssessingRisk/upload/TPH-Guidance-6_16_09.pdf

Cal-EPA 2009b. Revised California Human Health Screening Levels for Lead. September 2009.

Cal-EPA DTSC 2009c. Use of the Northern and Southern California Polynuclear Aromatic Hydrocarbon (PAH) Studies in the Manufactured Gas Plant Site Cleanup Process. July 1, 2009.

Cal-EPA DTSC, 2009d. Arsenic Strategies, Determination of Arsenic Remediation,

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SB0484\SSCGs Appendix A A-33 October 2013

Development of Arsenic Cleanup Goals. January 16, 2009.

Cal-EPA 1999. Preliminary Endangerment Assessment Guidance Manual. June (First Printing, January 1994).

Cal-EPA 1997. Selecting Inorganic Constituents as Chemicals of Potential Concern at Risk Assessments at Hazardous Waste Site and Permitted Facilities. Department of Toxic Substances Control. Human and Ecological Risk Division. February.

Connor, J.A., Bowers, R.L., Paquette, S.M., and Newell, C.J. Soil Attenuation Model for Derivation of Risk-Based Soil Remediation Standards. 1997.

Cowherd, C., G. Muleski, P. Engelhart, and D. Gillete 1985. Rapid Assessment of Exposure to Particulate Emissions from Surface Contamination. Prepared for EPA Office of Health and Environmental Assessment. EPA/600/8-85/002.

Feenstra, S., D. M. Mackay, and J.A. Cherry, 1991. A method for assessing the presence of residual NAPL based on organic chemical concentrations in soil samples, Ground Water Monitoring Review, 11(2), 128-136, Spring 1991.

Geosyntec Consultants (Geosyntec) 2009. Human Health Screening Evaluation Work Plan. Former Kast Property. Carson, CA. Site Cleanup No. 1230. Site ID. 2040330.

Geosyntec 2010. Addendum to the HHSE Work Plan. Former Kast Property. Carson, CA. Site Cleanup No. 1230. Site ID. 2040330.

Geosyntec 2011. Risk-Based Screening Levels for Total Petroleum Hydrocarbons. Former Kast Property. Carson, CA. Site Cleanup No. 1230. Site ID. 2040330.

Helsel, D. 2005. Nondetects and Data Analysis: Statistics for Censored Environmental Data. John Wiley & Sons, Inc. New York, New York. 250 p.

Los Angeles Regional Water Quality Control Board (LARWQCB), Los Angeles and Ventura Counties. Interim Site Assessment & Cleanup Guidebook. May 1996.

MADEP 2002. Commonwealth of Massachusetts, Department of Environmental Protection. Characterizing Risks Posed by Petroleum Contaminated Sites: Implementation of MADEP VPH/EPH Approach. Final Policy, October.

MADEP 2003. Commonwealth of Massachusetts, Department of Environmental Protection. Updated Petroleum Hydrocarbon Fraction Toxicity Values for the VPH/EPH/APH Methodology. Final, November.

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SB0484\SSCGs Appendix A A-34 October 2013

National Climatic Data Center (NCDC) 2011. Department of Commerce, National Oceanic and Atmospheric Administration (NOAA), and the National Environmental Satellite, Data and Information Service (NESDIS). http://www1.ncdc.noaa.gov/pub/data/ccd-data/wndspd11.txt.

Todd, D.K., and Mays, L.W. Groundwater Hydrogeology, Wiley, 1980

Total Petroleum Hydrocarbon Criteria Working Group (TPHCWG) 1997a. Volume 3. Selection of Representative TPH Fractions Based on Fate and Transport Considerations. Amherst Scientific Publishers, Amherst, MA. July.

TPHCWG 1997b. Volume 4. Development of Fraction Specific Reference Doses (RfD) and Reference Concentrations (RfC) for Total Petroleum Hydrocarbons (TPH). Amherst Scientific Publishers, Amherst, MA.

TPHCWG 1998a. Volume 1. Analysis of Petroleum Hydrocarbons in Environmental Media. Amherst Scientific Publishers, Amherst, MA. March.

TPHCWG 1998b. Volume 2. Composition of Petroleum Mixtures. Amherst Scientific Publishers. May.

TPHCWG 1999. Volume 5. Human Health Risk-Based Evaluation of Petroleum Release Sites: Implementing the Working Group Approach. Amherst Scientific Publishers, Amherst, MA. June.

United States Environmental Protection Agency (USEPA) 2013a. Integrated Risk Information System Database. URL: http://www.epa.gov/iris/. Office of Research and Development, National Center for Environmental Assessment.

USEPA 2013b. Regional Screening Levels for Chemical Contaminants at Superfund Sites. May. URL: http://www.epa.gov/region9/superfund//prg/index.html

USEPA 2013c. User’s Guide: Regional Screening Levels for Chemical Contaminants at Superfund Sites. May. URL: http://www.epa.gov/reg3hwmd/risk/human/rb-concentration_table/usersguide.htm

USEPA 2011. Toxicological Review of Trichloroethylene (CAS No. 79-01-6) in Support of Summary Information on the Integrated Risk Information System (IRIS). September. EPA/635/R-09/011F.

USEPA 2010. ProUCL Version 4.1 Technical Guide (Draft). Singh, A., R. Maichle, A.K. Singh, S.E. Lee, and N. Armbya. Office of Research and Development, National Exposure Research Laboratory. EPA/600/R-07/041. May.

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SB0484\SSCGs Appendix A A-35 October 2013

USEPA 2009. Risk Assessment Guidance for Superfund (RAGS). Volume I: Human Health Evaluation Manual (Part F, Supplemental Guidance for Inhalation Risk Assessment), Final. EPA-540-R-070-002. OSWER 9285.7-82. January.

USEPA 2004a. Region 9 Preliminary Remediation Goals. PRG Table. URL: http://www.epa.gov/region09/waste/sfund/prg/index.htm.

USEPA 2004b. Risk Assessment Guidance for Superfund (RAGS). Volume I: Human Health Evaluation Manual (Part E, Supplemental Guidance for Dermal Risk Assessment), Interim Guidance. EPA/540/R-99/005.

USEPA's 2003. Assessing Intermittent or Variable Exposures at Lead Sites. OSWER #9285.7-76. November 2003.

USEPA 2002. Supplemental Guidance for Developing Soil Screening Levels for Superfund Sites. Peer Review Draft. Office of Emergency and Remedial Response. OSWER 9355.4-24.

USEPA, 1997. Exposure Factors Handbook. Volumes I-III. An Update to Exposure Factors Handbook EPA/600/8-89/043 May 1989. EPA/600/P-95-002fa, fb, and fc. August.

USEPA 1996. Soil Screening Guidance: Technical Background Document. Second Edition. Office of Emergency and Remedial Response. EPA/540/R95/128. May.

USEPA, 1995. “Guidance for Risk Characterization” USEPA Science Policy Council. Risk Characterization Program. February.

USEPA 1991a. Risk Assessment Guidance for Superfund. Volume I: Human Health Evaluation Manual (Part B: Development of Risk-Based Preliminary Remediation Goals). Office of Emergency and Remedial Response. Publication 9285.7-01B. December.

USEPA 1991b. Role of Baseline Risk Assessment in Superfund Remedy Selection Decisions. Office of Solid Waste and Emergency Response. PB91-921359. Washington, D.C.

USEPA 1991c. Risk Assessment Guidance for Superfund. Volume I: Human Health Evaluation Manual - Supplemental Guidance, Standard Default Exposure Factors. Interim Final. OSWER Directive 9285.6-03.

USEPA 1989. Risk Assessment Guidance for Superfund. Volume 1: Human Health Evaluation Manual (Part A). Interim Final. Office of Emergency and Remedial Response. EPA-540/1-89/002. Washington, D.C.

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SB0484\SSCGs_AppendixA_Oct2013.docx October 2013

TABLES

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Geosyntec C

onsultantsP

age 1 of 1S

SC

Gs_A

ppA Tables_O

ct2013.xlsx

Table A-1Exposure Param

etersForm

er Kast PropertyC

arson, CaliforniaA

dultC

hild

IR

Soil ingestion rate

mg/d

100200

(1,2)330

(1)

SA

Skin surface area

cm2

5,7002,800

(1,3)5,700

(1)

AF

Soil-to-skin adherence factor

–0.07

0.2(1,3)

0.8(1)

Exposure frequency

d/yr350

350(1,2)

10P

J

Infrequent exposure to subsurface soilsd/yr

44

PJ

--

ED

Exposure duration

yr24

6(1,2)

25(2)

ET

Exposure time

hours24

24(2)

20 m3/day for the

8 hour workday

(1)

BW

Body w

eightkg

7015

(1,2)70

(1,2)

AT

CA

veraging time for carcinogenic effects

d 25,550

25,550(1,2)

25,550(1,2)

AT

NC

Averaging tim

e for noncarcinogenic effectsd

8,7602,190

(1,2)9,125

(1,2)

Note:

"--" not applicable; " PJ " P

rofessional Judgement

Source:

(1) Cal-E

PA

2011a. Hum

an Health R

isk Assessm

ent (HH

RA

) Note. O

ffice of Hum

an and Ecological R

isk (HE

RO

) HH

RA

Note N

umber 1. R

ecomm

ended D

TSC

Default E

xposure Factors For Use In R

isk Assessm

ent At C

alifornia Hazardous W

aste Sites and P

ermitted Facilities. Issued: M

ay 20, 2011.

(2) US

EP

A 1991c. R

AG

S. V

olume I: H

uman H

ealth Evaluation M

anual - Supplem

ental Guidance, S

tandard Default E

xposure Factors. Interim Final.

OS

WE

R D

irective 9285.6-03.

(3) US

EP

A 2004b. R

AG

S. V

olume I: H

uman H

ealth Evaluation M

anual (Part E

, Supplem

ental Guidance for D

ermal R

isk Assessm

ent), Interim G

uidance. E

PA

/540/R-99/005

EF

Source

Param

eterU

nitsO

nsite Resident

Source

Onsite C

onstruction and U

tility Maintenance

Worker

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Geosyntec C

onsultantsP

age 1 of 1S

SC

Gs_A

ppA Tables_O

ct2013.xlsx

Exposure R

outeTransfer Factor

Definition

Inhalation of particulates in outdoor air P

articulate emission factor

(PE

F) (kg/m3)

Ratio of chem

ical concentration in outdoor air (m

g/m3) to chem

ical concentration in soil (m

g/kg)

Soil-to-outdoor air

volatilization factor(V

Fsoil-O

A or VF

soil ) (kg/m3)

Ratio of chem

ical concentration in outdoor air (m

g/m3) to chem

ical concentration in soil (m

g/kg)

Soil vapor-to-outdoor air

volatilization factor(V

FSV-O

A )(µg/m

3 per µg/m3)

Ratio of chem

ical concentration in outdoor air (µg/m

3) to chemical concentration in soil vapor

(µg/m3)

Inhalation of vapors in outdoor air

Table A-2D

efinition of Transfer FactorsForm

er Kast PropertyC

arson, California

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Geosyntec C

onsultantsP

age 1 of 1S

SC

Gs_A

ppA Tables_O

ct2013.xlsx

Table A-3a

Derivation of P

articulate Em

ission and Volatilization Factors, O

nsite Resident

Former K

ast Property

Carson, C

alifornia

Param

eterV

alueU

nitsR

eference

Water-filled soil porosity (θw

)1.50E

-01(Lw

ater-Lsoil)

Total soil porosity (θT )

4.30E-01

(Lpore-Lsoil)

Air-filled soil porosity (θa)

2.80E-01

(Lair-Lsoil)

Soil bulk density (P

b)1.5

g/cm3

Fraction organic carbon in soil (foc)0.006

unitless

Exposure interval (T

resident )9.46E

+08sec

30 year exposure duration

Inverse of mean conc, Q

/Cresident

68.18(g/m

2-s per kg/m3)

Fraction of vegetative cover, Gresident

0.5unitless

Default (U

SE

PA

2002)

Mean annual w

indspeed (Um

)3.31

m/s

Average for Los A

ngeles, 7.4 mph (N

CD

C 2011)

Equivalent threshold value of w

indspeed at 7m (U

t)11.32

m/s

Default (U

SE

PA

2002)

Function dependent on Um

/Ut (Fx)

4.74E-03

unitlessLos A

ngeles-Specific (A

ppendix D, Table 2 in U

SE

PA

1996)

Particulate E

mission Factor, P

EF

resident1.2E

+11(m

3/kg)E

stimated for a lim

ited area, 0.5-acre (US

EP

A 2002)

Particulate E

mission Factor; P

EF

resident (US

EP

A 2002): P

EF = [(Q

/Cresident * 3600) / (0.036 * (1-G

resident ) * (Um

/Ut) 3 * Fx)]

CA

SN

umber

Chem

icalof C

oncern

Diffusivityin A

ir(D

air )(cm

2/s)

Henry'sLaw

Constant(H

')(unitless)

Diffusivity

inW

ater(D

water )

(cm2/s)

Organic

Carbon

Partition

Coefficient

(Koc )

(cm3/g)

Soil-W

ater P

artition C

oefficient (K

d)(cm

3/g)

Apparent

Diffusivity(D

A )(cm

2/s)

Effective

Diffusion

Coefficient (D

eff )(cm

2/s)

Soil-w

ater partition

coefficient(K

sw )(cm

3/g)

Onsite

ResidentVF

soil

(m3/kg)

79-34-51,1,2,2-Tetrachloroethane

7.1E-02

1.4E-02

7.9E-06

9.3E+01

5.6E-01

7.8E-05

5.5E-03

6.6E-01

1.4E+04

96-18-41,2,3-Trichloropropane

7.1E-02

1.7E-02

7.9E-06

2.2E+01

1.3E-01

2.6E-04

5.5E-03

2.4E-01

7.6E+03

95-63-61,2,4-Trim

ethylbenzene6.1E

-022.5E

-017.9E

-061.4E

+038.1E

+009.6E

-054.7E

-038.3E

+001.3E+04

78-87-51,2-D

ichloropropane 7.8E

-021.1E

-018.7E

-064.4E

+012.6E

-011.2E

-036.1E

-033.8E

-013.6E+03

108-67-81,3,5-Trim

ethylbenzene6.0E

-022.4E

-018.7E

-061.4E

+038.1E

+009.1E

-054.7E

-038.3E

+001.3E+04

106-46-71,4-D

ichlorobenzene6.9E

-029.8E

-027.9E

-066.2E

+023.7E

+009.2E

-055.4E

-033.8E

+001.3E+04

71-43-2B

enzene8.8E

-022.3E

-019.8E

-065.9E

+013.5E

-012.1E

-036.9E

-035.0E

-012.7E+03

75-27-4B

romodichlorom

ethane3.0E

-026.5E

-021.1E

-055.5E

+013.3E

-012.3E

-042.3E

-034.4E

-018.2E+03

74-83-9B

romom

ethane7.3E

-022.6E

-011.2E

-051.1E

+016.3E

-024.6E

-035.7E

-032.1E

-011.8E+03

100-41-4E

thylbenzene7.5E

-023.2E

-017.8E

-063.6E

+022.2E

+005.4E

-045.9E

-032.3E

+005.3E+03

75-09-2M

ethylene chloride1.0E

-019.0E

-021.2E

-051.2E

+017.0E

-022.5E

-037.9E

-031.9E

-012.5E+03

127-18-4Tetrachloroethene

7.2E-02

7.5E-01

8.2E-06

1.6E+02

9.3E-01

2.4E-03

5.6E-03

1.2E+00

2.5E+03

79-01-6Trichloroethene

7.9E-02

4.2E-01

9.1E-06

1.7E+02

1.0E+00

1.5E-03

6.2E-03

1.2E+00

3.2E+03

75-01-4V

inyl chloride1.1E

-011.1E

+001.2E

-051.9E

+011.1E

-011.5E

-028.3E

-034.2E

-011.0E+03

Volatilization Factor; V

Fsoil :

US

EP

A 2012 R

SL default

US

EP

A 2012 R

SL default

US

EP

A 2012 R

SL default

US

EP

A 2012 R

SL default

US

EP

A 2012 R

SL default

Calculated for a 0.5-acre site in Los A

ngeles (US

EP

A 2002)

1/2

eff

bsw

resident

b2 2

4-soil

'D

4P

KT

3.14

P 1

cm m

10

Q

/C

= V

F

×

××

××

×

×H

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Param

eter

Water-filled soil porosity (θw

)

Total soil porosity (θT )

Air-filled soil porosity (θa)

Soil bulk density (P

b)

Fraction organic carbon in soil (foc)

Exposure interval (T

CU

W)

Am

bient air velocity in mixing zone (U

air )

Particulate E

mission Factor, P

EF

CU

W

CA

SN

umber

Chem

icalof C

oncern

Diffusivityin A

ir(D

air )(cm

2/s)

Henry'sLaw

Constant(H

')(unitless)

Diffusivity

inW

ater(D

water )

(cm2/s)

Organic

Carbon

Partition

Coefficient

(Koc )

(cm3/g)

Soil-W

ater P

artition C

oefficient (K

d)(cm

3/g)

Apparent

Diffusivity(D

A )(cm

2/s)

Effective

Diffusion

Coefficient

(Deff )

(cm2/s)

Soil-w

ater partition

coefficient(K

sw )(cm

3/g)

Construction and

Utility

Maintenance W

orkerVF

soil-OA

(m3/kg)

Construction and

Utility

Maintenance W

orkerVF

SV-OA

(µg/m3 per µg/m

3)

71-55-61,1,1-Trichloroethane

7.8E-02

7.0E-01

8.8E-06

1.1E+02

6.6E-01

3.2E-03

6.1E-03

8.9E-01

--4.0E+04

79-34-51,1,2,2-Tetrachloroethane

7.1E-02

1.4E-02

7.9E-06

9.3E+01

5.6E-01

7.8E-05

5.5E-03

6.6E-01

--7.0E+03

79-00-51,1,2-Trichloroethane

7.8E-02

3.7E-02

8.8E-06

5.0E+01

3.0E-01

3.7E-04

6.1E-03

4.1E-01

--1.4E+04

75-34-31,1-D

ichloroethane7.4E

-022.3E

-011.1E

-053.2E

+011.9E

-012.7E

-035.8E

-033.3E

-01--

3.9E+04

96-18-41,2,3-Trichloropropane

7.1E-02

1.7E-02

7.9E-06

2.2E+01

1.3E-01

2.6E-04

5.5E-03

2.4E-01

1.8E+021.3E+04

120-82-11,2,4-Trichlorobenzene

3.0E-02

5.8E-02

8.2E-06

1.8E+03

1.1E+01

8.4E-06

2.3E-03

1.1E+01

--5.4E+03

95-63-61,2,4-Trim

ethylbenzene6.1E

-022.5E

-017.9E

-061.4E

+038.1E

+009.6E

-054.7E

-038.3E

+003.0E+02

9.0E+03

107-06-21,2-D

ichloroethane1.0E

-014.0E

-029.9E

-061.7E

+011.0E

-011.0E

-038.1E

-032.1E

-01--

1.7E+04

5.1E-01

c m/s

Based on an air exchange rate of 20 hr -1, w

ind direction parallel to the short side ofthe trench (3 ft or 91 cm

), professional judgment

Value

Uni ts

Reference

1.5E-01

(Lwater-Lsoil)

US

EP

A 2012 R

SL default

4.3E-01

(Lpore-Lsoil)U

SE

PA

2012 RS

L default

2.8E-01

(Lair-Lsoil)U

SE

PA

2012 RS

L default

1.5

Dispersion factor for am

bient air (DF

amb )

1.7E-01

cm/s

Calculated (A

STM

2004)

1.0E+06

(m3/kg)

DTS

C H

ER

O H

HR

A N

ote Num

ber 1 (Cal-E

PA

, 2011)

Source-zone area (A

)2.4E

+05cm

24 sidew

alls and bottom area of trench

Width of source-zone area (W

)457

cmA

ssume length of trench = 4.57 m

eters

Mixing zone height (H

)183

cmA

ssume depth of trench = 1.83 m

eters

Table A-3bD

erivation of Particulate Emission and Volatilization Factors, O

nsite Construction and U

tility Maintenance W

orkerForm

er Kast PropertyC

arson, California

Width of trench (W

t )91

cmA

s sume w

idth of trench = 0.91 meters

7.9E+08

sec25 year exposure duration for the construction/utility m

aintenance worker

g/cm3

US

EP

A 2012 R

SL default

0.006unitless

US

EP

A 2012 R

SL default

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Table A-3bD

erivation of Particulate Emission and Volatilization Factors, O

nsite Construction and U

tility Maintenance W

orkerForm

er Kast PropertyC

arson, California

CA

SN

umber

Chem

icalof C

oncern

Diffusivityin A

ir(D

air )(cm

2/s)

Henry'sLaw

Constant(H

')(unitless)

Diffusivity

inW

ater(D

water )

(cm2/s)

Organic

Carbon

Partition

Coefficient

(Koc )

(cm3/g)

Soil-W

ater P

artition C

oefficient (K

d)(cm

3/g)

Apparent

Diffusivity(D

A )(cm

2/s)

Effective

Diffusion

Coefficient

(Deff )

(cm2/s)

Soil-w

ater partition

coefficient(K

sw )(cm

3/g)

Construction and

Utility

Maintenance W

orkerVF

soil-OA

(m3/kg)

Construction and

Utility

Maintenance W

orkerVF

SV-OA

(µg/m3 per µg/m

3)

78-87-51,2-D

ichloropropane 7.8E

-021.1E

-018.7E

-064.4E

+012.6E

-011.2E

-036.1E

-033.8E

-01--

2.5E+04

108-67-81,3,5-Trim

ethylbenzene6.0E

-022.4E

-018.7E

-061.4E

+038.1E

+009.1E

-054.7E

-038.3E

+003.0E+02

8.8E+03

106-99-01,3-B

utadiene 2.5E

-013.0E

+001.1E

-051.9E

+011.1E

-015.0E

-021.9E

-027.8E

-01--

5.0E+04

106-46-71,4-D

ichlorobenzene6.9E

-029.8E

-027.9E

-066.2E

+023.7E

+009.2E

-055.4E

-033.8E

+00--

7.8E+03

123-91-11,4-D

ioxane 2.3E

-012.3E

-041.0E

-051.0E

+006.0E

-032.6E

-051.8E

-021.1E

-01--

1.2E+03

540-84-12,2,4-Trim

ethylpentane1.0E

-011.8E

+021.0E

-051.5E

+059.0E

+021.0E

-037.8E

-039.3E

+02--

1.8E+04

591-78-62-H

exanone7.5E

-023.8E

-038.4E

-069.4E

+005.7E

-029.4E

-055.8E

-031.6E

-01--

7.2E+03

622-96-84-E

thyltoluene6.8E

-022.1E

-017.3E

-061.8E

+031.1E

+016.7E

-055.3E

-031.1E

+01--

6.7E+03

71-43-2B

enzene8.8E

-022.3E

-019.8E

-065.9E

+013.5E

-012.1E

-036.9E

-035.0E

-016.3E+01

2.9E+04

75-27-4B

romodichlorom

ethane3.0E

-026.5E

-021.1E

-055.5E

+013.3E

-012.3E

-042.3E

-034.4E

-01--

2.8E+04

74-83-9B

romom

ethane7.3E

-022.6E

-011.2E

-051.1E

+016.3E

-024.6E

-035.7E

-032.1E

-01--

5.2E+04

75-15-0C

arbon disulfide1.0E

-011.2E

+001.0E

-054.6E

+012.7E

-011.1E

-028.1E

-036.1E

-01--

5.6E+04

56-23-5C

arbon tetrachloride7.8E

-021.2E

+008.8E

-061.7E

+021.0E

+003.6E

-036.1E

-031.4E

+00--

4.3E+04

67-66-3C

hloroform1.0E

-011.5E

-011.0E

-054.0E

+012.4E

-012.2E

-038.1E

-033.7E

-01--

2.5E+04

74-87-3C

hloromethane

1.3E-01

3.6E-01

6.5E-06

2.1E+00

1.3E-02

1.3E-02

9.8E-03

1.8E-01

--5.1E+04

110-82-7C

yclohexane 7.4E

-027.9E

+008.5E

-061.7E

+029.9E

-011.2E

-025.7E

-032.6E

+00--

8.2E+04

124-48-1D

ibromochlorom

ethane2.0E

-023.2E

-021.1E

-056.3E

+013.8E

-016.7E

-051.5E

-034.8E

-01--

2.3E+04

156-59-2D

ichloroethene, cis-1,2-7.4E

-021.7E

-011.1E

-053.6E

+012.1E

-011.8E

-035.7E

-033.4E

-01--

3.3E+04

156-60-5D

ichloroethene, trans-1,2-7.1E

-023.8E

-011.2E

-055.3E

+013.2E

-012.9E

-035.5E

-034.9E

-01--

4.2E+04

10061-02-6D

ichloropropene, trans-1,3-6.3E

-027.2E

-011.0E

-054.6E

+012.7E

-014.6E

-034.9E

-035.1E

-01--

6.1E+04

64-17-5E

thanol1.5E

-011.9E

-041.6E

-051.0E

+006.0E

-031.5E

-051.3E

-021.1E

-01--

1.3E+03

100-41-4E

thylbenzene7.5E

-023.2E

-017.8E

-063.6E

+022.2E

+005.4E

-045.9E

-032.3E

+001.2E+02

1.7E+04

142-82-5H

eptane9.3E

-028.2E

+017.6E

-062.7E

+021.6E

+002.3E

-027.2E

-031.7E

+01--

9.2E+04

87-68-3H

exachloro-1,3-butadiene5.6E

-023.3E

-016.2E

-065.4E

+043.2E

+023.0E

-064.4E

-033.2E

+02--

1.7E+03

110-54-3H

exane 2.0E

-016.8E

+017.8E

-064.3E

+012.6E

-015.4E

-021.6E

-021.3E

+01--

6.5E+04

67-63-0Isopropanol

8.0E-02

3.6E-04

9.3E-06

6.9E+00

4.2E-02

1.1E-05

6.5E-03

1.4E-01

--2.2E+03

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Table A-3bD

erivation of Particulate Emission and Volatilization Factors, O

nsite Construction and U

tility Maintenance W

orkerForm

er Kast PropertyC

arson, California

CA

SN

umber

Chem

icalof C

oncern

Diffusivityin A

ir(D

air )(cm

2/s)

Henry'sLaw

Constant(H

')(unitless)

Diffusivity

inW

ater(D

water )

(cm2/s)

Organic

Carbon

Partition

Coefficient

(Koc )

(cm3/g)

Soil-W

ater P

artition C

oefficient (K

d)(cm

3/g)

Apparent

Diffusivity(D

A )(cm

2/s)

Effective

Diffusion

Coefficient

(Deff )

(cm2/s)

Soil-w

ater partition

coefficient(K

sw )(cm

3/g)

Construction and

Utility

Maintenance W

orkerVF

soil-OA

(m3/kg)

Construction and

Utility

Maintenance W

orkerVF

SV-OA

(µg/m3 per µg/m

3)

98-82-8Isopropylbenzene (cum

ene)6.5E

-024.7E

+017.1E

-064.9E

+022.9E

+001.3E

-025.1E

-031.2E

+01--

1.0E+05

78-93-3M

ethyl ethyl ketone (2-butanone)8.1E

-022.3E

-039.8E

-062.3E

+001.4E

-028.4E

-056.3E

-031.1E

-01--

6.3E+03

75-09-2M

ethylene chloride1.0E

-019.0E

-021.2E

-051.2E

+017.0E

-022.5E

-037.9E

-031.9E

-01--

2.8E+04

1634-04-4M

ethyl-tert-butyl ether1.0E

-012.6E

-021.1E

-057.3E

+004.4E

-029.1E

-048.0E

-031.5E

-01--

1.6E+04

103-65-1P

ropylbenzene6.0E

-024.4E

-017.8E

-065.6E

+023.4E

+003.8E

-044.7E

-033.6E

+00--

1.8E+04

75-65-0tert-B

utyl Alcohol (TB

A)

8.5E-02

3.0E-03

9.1E-06

4.2E+00

2.5E-02

1.1E-04

6.7E-03

1.3E-01

--6.7E+03

127-18-4Tetrachloroethene

7.2E-02

7.5E-01

8.2E-06

1.6E+02

9.3E-01

2.4E-03

5.6E-03

1.2E+00

--3.8E+04

109-99-9Tetrahydrofuran

9.8E-02

2.9E-03

1.1E-05

9.5E-01

5.7E-03

1.4E-04

7.7E-03

1.1E-01

--6.7E+03

108-88-3Toluene

8.7E-02

2.7E-01

8.6E-06

1.8E+02

1.1E+00

9.8E-04

6.8E-03

1.2E+00

--2.0E+04

79-01-6Trichloroethene

7.9E-02

4.2E-01

9.1E-06

1.7E+02

1.0E+00

1.5E-03

6.2E-03

1.2E+00

--2.7E+04

75-01-4V

inyl chloride1.1E

-011.1E

+001.2E

-051.9E

+011.1E

-011.5E

-028.3E

-034.2E

-01--

6.3E+04

108-38-3Xylene, m

-7.0E

-023.0E

-017.8E

-064.1E

+022.4E

+004.2E

-045.5E

-032.6E

+00--

1.6E+04

95-47-6Xylene, o-

8.7E-02

2.1E-01

1.0E-05

3.6E+02

2.2E+00

4.1E-04

6.8E-03

2.3E+00

--1.3E+04

106-42-3Xylene, p-

7.7E-02

3.1E-01

8.4E-06

3.9E+02

2.3E+00

5.0E-04

6.0E-03

2.5E+00

--1.6E+04

1330-20-7Xylenes, total

8.5E-02

2.7E-01

9.9E-06

4.4E+02

2.7E+00

4.2E-04

6.6E-03

2.8E+00

1.4E+021.4E+04

91-20-3N

aphthalene5.9E

-022.0E

-027.5E

-062.0E

+031.2E

+015.0E

-064.6E

-031.2E

+01--

2.1E+03

Note:

--: Not selected as C

OC

for this medium

.

Volatilization Factor:

and(

)(

)2

1

2/1

eff

swC

UW

amb

OA

-soil

CF

CF

H'

D 4

Pb

K

T

3.14

PbD

F

= V

×

××

××

××

()2

1sw

OA

-soil

OA

-SV

CF

CF

K H

'V

FV

××

=

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Table A-4

Chronic Toxicity C

riteria

Cancer Toxicity C

riteriaN

oncancer Toxicity Criteria

Inorganics

7440-36-0A

ntimony

NA

0.15N

CN

CN

C4.0E

-046.0E

-05I

NA

7440-38-2A

rsenic0.03

19.5E

+00C

9.5E+00

3.3E-03

C3.0E

-043.0E

-04I

1.5E-05

C

7440-43-9C

admium

0.0010.025

NC

NC

4.2E-03

C1.0E

-032.5E

-05I

2.0E-05

C

18540-29-9C

hromium

, hexavalentN

A0.025

5.0E-01

JN

C1.5E

-01C

3.0E-03

7.5E-05

I1.0E

-04I

7440-48-4C

obaltN

A1

NC

NC

9.0E-03

P3.0E

-043.0E

-04P

6.0E-06

P

7440-50-8C

opperN

A1

NC

NC

NC

4.0E-02

4.0E-02

HN

A

7439-92-1Lead

NA

1N

CN

CN

CN

AN

AN

A

7440-28-0Thallium

NA

1N

CN

CN

C1.0E

-051.0E

-05X

NA

7440-62-2V

anadiumN

A1

NC

NC

NC

5.0E-03

5.0E-03

S1.0E

-04A

7440-66-6Zinc

NA

1N

CN

CN

C3.0E

-013.0E

-01I

NA

PAH

s

56-55-3B

enzo (a) anthracene0.13

12.9E

-01C

*2.9E

-011.1E

-04C

NA

NA

NA

50-32-8B

enzo (a) pyrene0.13

12.9E

+00C

*2.9E

+001.1E

-03C

NA

NA

NA

205-99-2B

enzo (b) fluoranthene0.13

12.9E

-01C

*2.9E

-011.1E

-04C

NA

NA

NA

207-08-9B

enzo (k) fluoranthene0.13

12.9E

-01C

*2.9E

-011.1E

-04C

NA

NA

NA

218-01-9C

hrysene0.13

12.9E

-02C

*2.9E

-021.1E

-05C

NA

NA

NA

53-70-3D

ibenz (a,h) anthracene0.13

14.1E

+00C

4.1E+00

1.2E-03

CN

AN

AN

A

193-39-5Indeno (1,2,3-cd) pyrene

0.131

2.9E-01

C*

2.9E-01

1.1E-04

CN

AN

AN

A

90-12-0M

ethylnaphthalene, 1-0.13

12.9E

-02P

2.9E-02

NC

7.0E-02

7.0E-02

AN

A

91-57-6M

ethylnaphthalene, 2-0.13

1N

CN

CN

C4.0E

-034.0E

-03I

NA

91-20-3N

aphthalene0.13

1N

CN

C3.4E

-05C

2.0E-02

2.0E-02

I3.0E

-03I

129-00-0P

yrene0.13

1N

CN

CN

C3.0E

-023.0E

-02I

1.1E-01

R

TPH

TPH

Aliphatic: C

5-C8

0.131

NC

NC

NC

4.0E-02

4.0E-02

B7.0E

-01B

TPH

Aliphatic: C

9-C18

0.131

NC

NC

NC

1.0E-01

1.0E-01

B3.0E

-01B

TPH

Aliphatic: C

19-C32

0.131

NC

NC

NC

2.0E+00

2.0E+00

B--

B

TPH

Arom

atic: C6-C

80.13

1N

CN

CN

C--

--B

--B

TPH

Arom

atic: C9-C

160.13

1N

CN

CN

C3.0E

-023.0E

-02B

5.0E-02

B

TPH

Arom

atic: C17-C

320.13

1N

CN

CN

C3.0E

-023.0E

-02B

--B

SVOC

s

121-14-22,4-D

initrotoluene0.102

13.1E

-01C

3.1E-01

8.9E-05

C2.0E

-032.0E

-03I

7.0E-03

R

117-81-7B

is(2-Ethylhexyl) P

hthalate0.1

11.4E

-02I

1.4E-02

2.4E-06

C2.0E

-022.0E

-02I

7.0E-02

R

Oral C

ancer S

lope Factor (m

g/kg-day) -1

Source

Derm

al Cancer

Slope Factor

(mg/kg-day) -1

InhalationU

nit Risk

(µg/m3) -1

Source

Oral

RfD

(mg/kg-day)

Derm

alR

fD(m

g/kg-day)

Source

InhalationR

fC or R

EL

(mg/m

3)

Source

CA

SN

umber

Chem

icalof C

oncernD

ermal

AB

S^

GI

AB

S^

Geosyntec C

onsultantsP

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Table A-4

Chronic Toxicity C

riteria

Cancer Toxicity C

riteriaN

oncancer Toxicity Criteria

Oral C

ancer S

lope Factor (m

g/kg-day) -1

Source

Derm

al Cancer

Slope Factor

(mg/kg-day) -1

InhalationU

nit Risk

(µg/m3) -1

Source

Oral

RfD

(mg/kg-day)

Derm

alR

fD(m

g/kg-day)

Source

InhalationR

fC or R

EL

(mg/m

3)

Source

CA

SN

umber

Chem

icalof C

oncernD

ermal

AB

S^

GI

AB

S^

VOC

s

71-55-61,1,1-Trichloroethane

NA

1N

CN

CN

C2.0E

+002.0E

+00I

5.0E+00

I

79-34-51,1,2,2-Tetrachloroethane

NA

12.7E

-01C

2.7E-01

5.8E-05

C2.0E

-022.0E

-02I

7.0E-02

R

79-00-51,1,2-Trichloroethane

NA

17.2E

-02C

7.2E-02

1.6E-05

C4.0E

-034.0E

-03I

2.0E-04

X

75-34-31,1-D

ichloroethaneN

A1

5.7E-03

C5.7E

-031.6E

-06C

2.0E-01

2.0E-01

P7.0E

-01R

96-18-41,2,3-Trichloropropane

NA

13.0E

+01I

3.0E+01

NC

4.0E-03

4.0E-03

I3.0E

-04I

120-82-11,2,4-Trichlorobenzene

NA

13.6E

-03C

3.6E-03

NC

1.0E-02

1.0E-02

I2.0E

-03P

95-63-61,2,4-Trim

ethylbenzeneN

A1

NC

NC

NC

1.0E-02

1.0E-02

X7.0E

-03P

107-06-21,2-D

ichloroethaneN

A1

4.7E-02

C4.7E

-022.1E

-05C

6.0E-03

6.0E-03

X7.0E

-03P

78-87-51,2-D

ichloropropane N

A1

3.6E-02

C3.6E

-021.0E

-05C

9.0E-02

9.0E-02

A4.0E

-03I

108-67-81,3,5-Trim

ethylbenzeneN

A1

NC

NC

NC

1.0E-02

1.0E-02

X7.0E

-03P

106-99-01,3-B

utadiene N

A1

3.4E+00

C3.4E

+001.7E

-04C

5.7E-04

5.7E-04

R2.0E

-03I

106-46-71,4-D

ichlorobenzeneN

A1

5.4E-03

C5.4E

-031.1E

-05C

7.0E-02

7.0E-02

A8.0E

-01C

123-91-11,4-D

ioxane 0.1

12.7E

-02C

2.7E-02

7.7E-06

C3.0E

-023.0E

-02I

3.0E+00

C

540-84-12,2,4-Trim

ethylpentaneN

A1

NC

NC

NC

NA

NA

1.0E+00

D

591-78-62-H

exanoneN

A1

NC

NC

NC

5.0E-03

5.0E-03

I3.0E

-02I

622-96-84-E

thyltoluene*N

A1

NC

NC

NC

2.0E-01

2.0E-01

S1.0E

-01S

71-43-2B

enzeneN

A1

1.0E-01

C1.0E

-012.9E

-05C

4.0E-03

4.0E-03

I3.0E

-02I

75-27-4B

romodichlorom

ethaneN

A1

1.3E-01

C1.3E

-013.7E

-05C

2.0E-02

2.0E-02

I7.0E

-02R

74-83-9B

romom

ethaneN

A1

NC

NC

NC

1.4E-03

1.4E-03

I5.0E

-03C

75-15-0C

arbon disulfideN

A1

NC

NC

NC

1.0E-01

1.0E-01

I7.0E

-01I

56-23-5C

arbon tetrachlorideN

A1

1.5E-01

C1.5E

-014.2E

-05C

4.0E-03

4.0E-03

I1.0E

-01I

67-66-3C

hloroformN

A1

3.1E-02

C3.1E

-025.3E

-06C

1.0E-02

1.0E-02

I9.8E

-02A

74-87-3C

hloromethane

NA

1N

CN

CN

C2.6E

-022.6E

-02R

9.0E-02

I

110-82-7C

yclohexane N

A1

NC

NC

NC

1.7E+00

1.7E+00

R6.0E

+00I

124-48-1D

ibromochlorom

ethane0.1

19.4E

-02C

9.4E-02

2.7E-05

C2.0E

-022.0E

-02I

7.0E-02

R

156-59-2D

ichloroethene, cis-1,2-N

A1

NC

NC

NC

2.0E-03

2.0E-03

I7.0E

-03R

156-60-5D

ichloroethene, trans-1,2-N

A1

NC

NC

NC

2.0E-02

2.0E-02

I6.0E

-02P

10061-02-6D

ichloropropene, trans-1,3-*N

A1

9.1E-02

C9.1E

-021.6E

-05C

3.0E-02

3.0E-02

I2.0E

-02I

64-17-5E

thanol*N

A1

NC

NC

NC

5.0E-01

5.0E-01

I4.0E

+00C

100-41-4E

thylbenzeneN

A1

1.1E-02

C1.1E

-022.5E

-06C

1.0E-01

1.0E-01

I1.0E

+00I

142-82-5H

eptane*N

A1

NC

NC

NC

6.0E-02

6.0E-02

H7.0E

-01I

87-68-3H

exachloro-1,3-butadiene0.1

17.8E

-02I

7.8E-02

2.2E-05

I1.0E

-031.0E

-03P

3.5E-03

R

Geosyntec C

onsultantsP

age 2 of 3S

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Table A-4

Chronic Toxicity C

riteria

Cancer Toxicity C

riteriaN

oncancer Toxicity Criteria

Oral C

ancer S

lope Factor (m

g/kg-day) -1

Source

Derm

al Cancer

Slope Factor

(mg/kg-day) -1

InhalationU

nit Risk

(µg/m3) -1

Source

Oral

RfD

(mg/kg-day)

Derm

alR

fD(m

g/kg-day)

Source

InhalationR

fC or R

EL

(mg/m

3)

Source

CA

SN

umber

Chem

icalof C

oncernD

ermal

AB

S^

GI

AB

S^

110-54-3H

exane N

A1

NC

NC

NC

6.0E-02

6.0E-02

H7.0E

-01I

67-63-0Isopropanol

0.11

NC

NC

NC

NA

NA

7.0E+00

C

98-82-8Isopropylbenzene (cum

ene)N

A1

NC

NC

NC

1.0E-01

1.0E-01

I4.0E

-01I

78-93-3M

ethyl ethyl ketone (2-butanone)N

A1

NC

NC

NC

6.0E-01

6.0E-01

I5.0E

+00I

75-09-2M

ethylene chlorideN

A1

1.4E-02

C1.4E

-021.0E

-06C

6.0E-03

6.0E-03

I6.0E

-01I

1634-04-4M

ethyl-tert-butyl etherN

A1

1.8E-03

C1.8E

-032.6E

-07C

8.6E-01

8.6E-01

R3.0E

+00I

103-65-1P

ropylbenzene0.1

1N

CN

CN

C1.0E

-011.0E

-01X

1.0E+00

X

75-65-0tert-B

utyl Alcohol (TB

A)*

0.11

NC

NC

NC

3.0E-01

3.0E-01

I1.1E

+00R

127-18-4Tetrachloroethene

NA

15.4E

-01C

5.4E-01

5.9E-06

C6.0E

-036.0E

-03I

4.0E-02

I

109-99-9Tetrahydrofuran

0.11

NC

NC

NC

9.0E-01

9.0E-01

I2.0E

+00I

108-88-3Toluene

NA

1N

CN

CN

C8.0E

-028.0E

-02I

5.0E+00

I

79-01-6Trichloroethene

NA

14.6E

-02I

4.6E-02

4.1E-06

I5.0E

-045.0E

-04I

2.0E-03

I

75-01-4V

inyl chlorideN

A1

2.7E-01

C2.7E

-017.8E

-05C

3.0E-03

3.0E-03

I1.0E

-01I

108-38-3X

ylene, m-

NA

1N

CN

CN

C2.0E

-012.0E

-01S

1.0E-01

S

95-47-6X

ylene, o-N

A1

NC

NC

NC

2.0E-01

2.0E-01

S1.0E

-01S

106-42-3X

ylene, p-N

A1

NC

NC

NC

2.0E-01

2.0E-01

S1.0E

-01S

Notes:

Surrogates:

* p-Xylene for 4-E

thyltoluene; Hexane for H

eptane; Isobutyl alcohol for tert-Butyl A

lcohol; 1,3-Dichloropropene for trans-1,3-D

ichloropropene; Methanol for E

thanol

^ Source of D

ermal A

BS

and GI A

BS

: US

EP

A 2013b. R

egional Screening Levels for C

hemical C

ontaminants at S

uperfund Sites. M

ay. http://ww

w.epa.gov/region9/superfund//prg/index.htm

l

Key:

C* = C

al-EP

A 2010

C = C

al-EP

A 2013

A = A

gency For Toxic Substances A

nd Disease R

egistry (ATS

DR

) as reported in US

EP

A 2013b

B = C

al-EP

A 2009. Interim

Guidance: E

valuating Hum

an Health R

isks from Total P

etroleum H

ydrocarbons.

D = TP

HC

WG

, 1997. Develom

ent of Fraction Specific R

eference Doses (R

fDs) and R

eference Concentrations (R

fCs) for TP

H

H = H

ealth Effects A

ssessment S

umm

ary Tables (HE

AS

T). July. EP

A 540/R

-97-036-PB

97-921199 as reported in US

EP

A 2013b

I = Integrated Risk Inform

ation System

Database, IR

IS in U

SE

PA

2013a

J = New

Jersey; reported in US

EP

A 2013b

P = P

rovisional Peer R

eviewed Toxicity V

alue (PP

RTV

) as reported in US

EP

A 2013b

R = route-to-route extrapolation

S = reported in U

SE

PA

2013b

X = P

PR

TV A

ppendix; reported in US

EP

A 2013b

" NA

" not available; " -- " not applicable; " NC

" not considered a carcinogen; " AB

S " absorption; " G

I " gastrointestinal; " PA

H " P

olycyclic Arom

atic Hydrocarbons; " R

fD " reference dose;

" RfC

" reference concentration; " RE

L " reference exposure level

Geosyntec C

onsultantsP

age 3 of 3S

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Table A-5 Exposure Concentration for Outdoor Inhalation of Particulates/Vapors from Soil

Former Kast Property Carson, California

(1) Exposure Concentration Equations

a) Noncarcinogenic Chemicals

( )OA-soilsoilNCsoilinh, VFor VFAT

ETEDEFEC×

××=

b) Carcinogenic Chemicals – Onsite Resident

ADULTsoilCCHILDsoilCsoilinh, VFAT

ETEDEFVFAT

ETEDEFEC

×

××+

×

××=

c) Carcinogenic Chemicals – Construction and Utility Maintenance Worker

OA-soilCsoilinh, VFAT

ETEDEFEC×

××=

(2) Explanation of Variables

Variable Description Units

ECinh,soil Exposure concentration outdoor inhalation mg/m3 per mg/kg of chemicals from soil

PEF Particulate emission factor for non-VOCs m3/kg

VFsoil Volatilization factor, onsite resident mg/m3 per mg/kg

VFsoil-OA Volatilization factor for VOCs, construction mg/m3 per mg/kg and utility maintenance worker

EF Exposure frequency day/yr

ED Exposure duration yr

ET Exposure time hour/hour

ATC Averaging time – cancer effects day

ATNC Averaging time – noncancer effects day

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Table A-6 Exposure Concentration for Outdoor Inhalation from Soil Vapor

Former Kast Property Carson, California

(1) Exposure Concentration Equations

a) Noncarcinogenic Chemicals – Construction and Utility Maintenance Worker

OA-SVNCOA-SV VFCFAT

ETEDEFEC××××

=

b) Carcinogenic Chemicals – Construction and Utility Maintenance Worker

OA-SVCOA-SV VFCFAT

ETEDEFEC××××

=

(2) Explanation of Variables

Variable Description Units

ECSV-OA Exposure concentration for outdoor mg/m3 per mg/m3 inhalation of chemicals from soil vapor

VFSV-OA Volatilization factor µg/m3 per µg/m3

EF Exposure frequency day/yr

ED Exposure duration yr

ET Exposure time hour/hour

CF Units conversion factor µg/mg

ATC Averaging time – cancer effects day

ATNC Averaging time – noncancer effects day

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Table A-7 Exposure Concentration for Indoor Inhalation from Sub-Slab Soil Vapor

Former Kast Property Carson, California

(1) Exposure Concentration Equations

a) Noncarcinogenic Chemicals – Onsite Resident

NCIA-SV-SS AT

ETEDEFEC ××=

b) Carcinogenic Chemicals – Onsite Resident

CIA-SV-SS AT

ETEDEFEC ××=

(2) Explanation of Variables

Variable Description Units

ECSS-SV-IA Exposure concentration for indoor mg/m3 per mg/m3 inhalation of chemicals (sub-slab soil vapor into indoor air)

EF Exposure frequency day/yr

ED Exposure duration yr

ET Exposure time hour/hour

ATC Averaging time – cancer effects day

ATNC Averaging time – noncancer effects day

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Table A-8 Intake Factor for Dermal Contact with Soil

Former Kast Property Carson, California

(1) Intake Factor Equations

a) Noncarcinogenic Chemicals

NCdermal ATBW

EDEFCFABSAFSAIF×

×××××=

b) Carcinogenic Chemicals – Onsite Resident

ADULTCCHILDCdermal ATBW

EDEFCFABSAFSAATBW

EDEFCFABSAFSAIF

×

×××××+

×

×××××=

c) Carcinogenic Chemicals – Construction and Utility Maintenance Worker

Cdermal ATBW

EDEFCFABSAFSAIF×

×××××=

(2) Explanation of Variables

Variable Description Units

IFdermal Intake factor for dermal contact with soil kg soil / kg body weight per day

SA Surface area of exposed skin cm2/day

AF Soil-to-skin adherence factor mg/cm2

ABS Absorption factor –

CF Units conversion factor kg/mg

EF Exposure frequency day/yr

ED Exposure duration yr

BW Body weight kg

ATC Averaging time – cancer effects day

ATNC Averaging time – noncancer effects day

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Table A-9 Intake Factor for Incidental Soil Ingestion

Former Kast Property Carson, California

(1) Intake Factor Equations

a) Noncarcinogenic Chemicals

NCoral ATBW

EDEFCFIRIF×

×××=

b) Carcinogenic Chemicals – Onsite Resident

ADULTCCHILDCoral ATBW

EDEFCFIRATBW

EDEFCFIRIF

×

×××+

×

×××=

c) Carcinogenic Chemicals – Construction and Utility Maintenance Worker

Coral ATBW

EDEFCFIRIF×

×××=

(2) Explanation of Variables

Variable Description Units

IForal Intake factor for soil ingestion kg soil / kg body weight per day

IR Ingestion rate of soil mg/day

CF Units conversion factor kg/mg

EF Exposure frequency day/yr

ED Exposure duration yr

BW Body weight kg

ATC Averaging time – cancer effects day

ATNC Averaging time – noncancer effects day

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Table A-10Site-Specific Cleanup Goals for Soil, Onsite Resident

SSCGnc SSCGc SSCGnc SSCGc

Inorganics

Antimony 7440-36-0 3.1E+01 -- 2.7E+03 --

Arsenic 7440-38-2 2.2E+01 6.1E-02 1.9E+03 5.4E+00

Cadmium 7440-43-9 7.0E+01 6.7E+04 6.2E+03 5.8E+06

Chromium VI 18540-29-9 2.3E+02 1.3E+00 2.1E+04 1.1E+02

Cobalt 7440-48-4 2.3E+01 3.1E+04 2.1E+03 2.7E+06

Copper 7440-50-8 3.1E+03 -- 2.7E+05 --

Lead 7439-92-1 8.0E+01(a) -- 8.2E+02(b) --

Thallium 7440-28-0 7.8E-01 -- 6.8E+01 --

Vanadium 7440-62-2 3.9E+02 -- 3.4E+04 --

Zinc 7440-66-6 2.3E+04 -- 2.1E+06 --

PAHs

Benz[a]anthracene 56-55-3 -- 1.6E+00 -- 1.4E+02

Benzo[a]pyrene 50-32-8 -- 1.6E-01 -- 1.4E+01

Benzo[b]fluoranthene 205-99-2 -- 1.6E+00 -- 1.4E+02

Benzo[k]fluoranthene 207-08-9 -- 1.6E+00 -- 1.4E+02

Chrysene 218-01-9 -- 1.6E+01 -- 1.4E+03

Dibenz[a,h]anthracene 53-70-3 -- 1.1E-01 -- 9.7E+00

Indeno[1,2,3-cd]pyrene 193-39-5 -- 1.6E+00 -- 1.4E+02

Methylnaphthalene, 1- 90-12-0 4.0E+03 1.6E+01 3.5E+05 1.4E+03

Methylnaphthalene, 2- 91-57-6 2.3E+02 -- 2.0E+04 --

Naphthalene 91-20-3 1.5E+02 4.0E+00 1.3E+04 3.5E+02

Pyrene 129-00-0 1.7E+03 -- 1.5E+05 --

TPH

Aliphatic: C5-C8 7.1E+02 -- 6.2E+04 --

Aliphatic: C9-C18 1.4E+03 -- 1.3E+05 --

Aliphatic: C19-C32 1.1E+05 -- 1.0E+07 --

Aromatic: C6-C8 -- -- -- --

Aromatic: C9-C16 6.0E+02 -- 5.3E+04 --

Aromatic: C17-C32 1.7E+03 -- 1.5E+05 --

TPHg 7.6E+02 -- 6.6E+04 --

TPHd 1.3E+03 -- 1.1E+05 --

TPHmo 3.3E+03 -- 2.9E+05 --

SVOCs

2,4-Dinitrotoluene 121-14-2 1.2E+02 1.6E+00 1.1E+04 1.4E+02

Bis(2-Ethylhexyl) Phthalate 117-81-7 1.2E+03 3.5E+01 1.1E+05 3.0E+03

VOCs

1,1,2,2-Tetrachloroethane 79-34-5 6.2E+02 4.7E-01 5.4E+04 4.1E+01

1,2,3-Trichloropropane 96-18-4 2.4E+00 2.1E-02 2.1E+02 1.9E+00

1,2,4-Trimethylbenzene 95-63-6 8.3E+01 -- 7.2E+03 --

1,2-Dichloropropane 78-87-5 1.5E+01 8.3E-01 1.3E+03 7.2E+01

1,3,5-Trimethylbenzene 108-67-8 8.5E+01 -- 7.4E+03 --

Chemicalof

Concern

CASNumber

Onsite Resident

Soil (mg/kg)

EF = 350 d/y* EF = 4 d/y*

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Table A-10Site-Specific Cleanup Goals for Soil, Onsite Resident

SSCGnc SSCGc SSCGnc SSCGc

Chemicalof

Concern

CASNumber

Onsite Resident

Soil (mg/kg)

EF = 350 d/y* EF = 4 d/y*

1,4-Dichlorobenzene 106-46-7 3.6E+03 2.8E+00 3.2E+05 2.4E+02

Benzene 71-43-2 6.7E+01 2.2E-01 5.8E+03 1.9E+01

Bromodichloromethane 75-27-4 4.3E+02 4.9E-01 3.8E+04 4.2E+01

Bromomethane 74-83-9 8.8E+00 -- 7.7E+02 --

Ethylbenzene 100-41-4 3.3E+03 4.8E+00 2.9E+05 4.2E+02

Methylene chloride 75-09-2 3.6E+02 5.3E+00 3.2E+04 4.7E+02

Tetrachloroethene 127-18-4 8.6E+01 5.5E-01 7.5E+03 4.9E+01

Trichloroethene 79-01-6 5.8E+00 1.2E+00 5.0E+02 1.0E+02

Vinyl chloride 75-01-4 7.4E+01 3.2E-02 6.4E+03 2.8E+00

Notes:

" -- " not applicable; " na " not available

" SSCGnc " Site-Specific cleanup goal using a target noncancer hazard = 1

" SSCGc " Site-Specific cleanup goal using a target cancer risk = 1 ×10-6 for residentsSoil SSCGs based on incidental ingestion, dermal contact with soil, and outdoor air inhalation(a) Cal-EPA 2009b. Revised California Human Health Screening Levels for Lead. September 2009.(b) Based on USEPA adult lead model, similar parameters used for the residential CHHSL, and a lower exposure frequency.

* EF: exposure frequency; 350 days/year (d/y) for a typical resident and 4 days/year for a resident who infrequently contacts subsurface soils.

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SSCGnc SSCGc

VOCs

1,1,1-Trichloroethane 71-55-6 5.2E+06 --

1,1,2,2-Tetrachloroethane 79-34-5 7.3E+04 4.2E+01

1,1,2-Trichloroethane 79-00-5 2.1E+02 1.5E+02

1,1-Dichloroethane 75-34-3 7.3E+05 1.5E+03

1,2,4-Trichlorobenzene 120-82-1 2.1E+03 --

1,2,4-Trimethylbenzene 95-63-6 7.3E+03 --

1,2-Dichloroethane 107-06-2 7.3E+03 1.2E+02

1,2-Dichloropropane 78-87-5 4.2E+03 2.4E+02

1,3,5-Trimethylbenzene 108-67-8 7.3E+03 --

1,3-Butadiene 106-99-0 2.1E+03 1.4E+01

1,4-Dichlorobenzene 106-46-7 8.3E+05 2.2E+02

1,4-Dioxane 123-91-1 3.1E+06 3.2E+02

2,2,4-Trimethylpentane 540-84-1 1.0E+06 --

2-Hexanone 591-78-6 3.1E+04 --

4-Ethyltoluene 622-96-8 1.0E+05 --

Benzene 71-43-2 3.1E+04 8.4E+01

Bromodichloromethane 75-27-4 7.3E+04 6.6E+01

Bromomethane 74-83-9 5.2E+03 --

Carbon disulfide 75-15-0 7.3E+05 --

Carbon tetrachloride 56-23-5 1.0E+05 5.8E+01

Chloroform 67-66-3 1.0E+05 4.6E+02

Chloromethane 74-87-3 9.4E+04 --

Cyclohexane 110-82-7 6.3E+06 --

Dibromochloromethane 124-48-1 7.3E+04 9.0E+01

Dichloroethene, cis-1,2- 156-59-2 7.3E+03 --

Dichloroethene, trans-1,2- 156-60-5 6.3E+04 --

Dichloropropene, trans-1,3- 10061-02-6 2.1E+04 1.5E+02

Ethanol 64-17-5 4.2E+06 --

Ethylbenzene 100-41-4 1.0E+06 9.7E+02

Heptane 142-82-5 7.3E+05 --

Hexachloro-1,3-butadiene 87-68-3 3.7E+03 1.1E+02

Hexane 110-54-3 7.3E+05 --

Isopropanol 67-63-0 7.3E+06 --

Isopropylbenzene (cumene) 98-82-8 4.2E+05 --

Methyl ethyl ketone (2-butanone) 78-93-3 5.2E+06 --

Methylene chloride 75-09-2 6.3E+05 2.4E+03

Methyl-tert-butyl ether 1634-04-4 3.1E+06 9.4E+03

Naphthalene 91-20-3 3.1E+03 7.2E+01

Propylbenzene 103-65-1 1.0E+06 --

Table A-11Site-Specific Cleanup Goals for Sub-Slab Soil Vapor, Onsite Resident

Chemicalof

Concern

CASNumber

Onsite Resident

Sub-Slab Soil Vapor (µg/m3)

Former Kast PropertyCarson, California

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SSCGnc SSCGc

Table A-11Site-Specific Cleanup Goals for Sub-Slab Soil Vapor, Onsite Resident

Chemicalof

Concern

CASNumber

Onsite Resident

Sub-Slab Soil Vapor (µg/m3)

Former Kast PropertyCarson, California

tert-Butyl Alcohol (TBA) 75-65-0 1.1E+06 --

Tetrachloroethene 127-18-4 4.2E+04 4.1E+02

Tetrahydrofuran 109-99-9 2.1E+06 --

Toluene 108-88-3 5.2E+06 --

Trichloroethene 79-01-6 2.1E+03 4.3E+02

Vinyl chloride 75-01-4 1.0E+05 3.1E+01

Xylene, m- 108-38-3 1.0E+05 --

Xylene, o- 95-47-6 1.0E+05 --

Xylene, p- 106-42-3 1.0E+05 --

TPHAliphatic: C5-C8 1 7.3E+05 --

Aliphatic: C9-C18 2 3.1E+05 --

Aliphatic: C19-C32 3 -- --

Aromatic: C6-C8 4 -- --

Aromatic: C9-C16 5 5.2E+04 --

Aromatic: C17-C32 6 -- --

TPHg 6 1.4E+05 --

TPHd 6 1.6E+05 --

TPHmo 6 -- --

Notes:

" -- " not applicable or not available

" SSCGnc " Site-Specific cleanup goal using a target noncancer hazard = 1

" SSCGc " Site-Specific cleanup goal using a target cancer = 1×10-6 for onsite residents

Sub-Slab Soil Vapor SSCGs based on indoor air inhalation of vapors

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SSCGnc SSCGc

Inorganics

Antimony 7440-36-0 3.1E+03 --

Arsenic 7440-38-2 4.1E+02 1.5E+01

Cadmium 7440-43-9 6.4E+02 2.4E+02

Chromium VI 18540-29-9 3.2E+03 6.7E+00

Cobalt 7440-48-4 2.0E+02 1.1E+02

Copper 7440-50-8 3.1E+05 --

Lead 7439-92-1 8.2E+02(a) --

Thallium 7440-28-0 7.7E+01 --

Vanadium 7440-62-2 3.3E+03 --

Zinc 7440-66-6 2.3E+06 --

PAHs

Benz[a]anthracene 56-55-3 -- 2.6E+02

Benzo[a]pyrene 50-32-8 -- 2.6E+01

Benzo[b]fluoranthene 205-99-2 -- 2.6E+02

Benzo[k]fluoranthene 207-08-9 -- 2.6E+02

Chrysene 218-01-9 -- 2.6E+03

Dibenz[a,h]anthracene 53-70-3 -- 1.9E+01

Indeno[1,2,3-cd]pyrene 193-39-5 -- 2.6E+02

Methylnaphthalene, 1- 90-12-0 1.9E+05 2.7E+03

Methylnaphthalene, 2- 91-57-6 1.1E+04 --

Naphthalene 91-20-3 1.4E+02 3.9E+01

Pyrene 129-00-0 6.7E+04 --

TPH

Aliphatic: C5-C8 8.3E+02 --

Aliphatic: C9-C18 1.6E+03 --

Aliphatic: C19-C32 5.5E+06 --

Aromatic: C6-C8 -- --

Aromatic: C9-C16 7.5E+02 --

Aromatic: C17-C32 8.3E+04 --

TPHg 9.0E+02

TPHd 1.9E+03

TPHmo 1.6E+05

SVOCs

2,4-Dinitrotoluene 121-14-2 6.3E+03 2.8E+02

Bis(2-Ethylhexyl) Phthalate 117-81-7 6.3E+04 6.4E+03

VOCs

1,1,2,2-Tetrachloroethane 79-34-5 8.3E+02 5.7E+00

1,2,3-Trichloropropane 96-18-4 2.0E+00 7.2E+00

1,2,4-Trimethylbenzene 95-63-6 7.5E+01 --

1,2-Dichloropropane 78-87-5 1.2E+01 8.5E+00

1,3,5-Trimethylbenzene 108-67-8 7.7E+01 --

Table A-12Site-Specific Cleanup Goals for Soil,

Construction and Utility Maintenance Worker

Chemicalof

Concern

CASNumber

Construction and UtilityMaintenance Worker

Soil (mg/kg)

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SSCGnc SSCGc

Table A-12Site-Specific Cleanup Goals for Soil,

Construction and Utility Maintenance Worker

Chemicalof

Concern

CASNumber

Construction and UtilityMaintenance Worker

Soil (mg/kg)

1,4-Dichlorobenzene 106-46-7 8.7E+03 2.8E+01

Benzene 71-43-2 6.9E+01 2.2E+00

Bromodichloromethane 75-27-4 4.9E+02 5.3E+00

Bromomethane 74-83-9 7.8E+00 --

Ethylbenzene 100-41-4 4.5E+03 5.1E+01

Methylene chloride 75-09-2 1.2E+03 5.9E+01

Tetrachloroethene 127-18-4 8.6E+01 1.0E+01

Trichloroethene 79-01-6 5.5E+00 1.9E+01

Vinyl chloride 75-01-4 8.7E+01 3.1E-01

Notes:

" -- " not applicable or not available" SSCGnc " Site-Specific cleanup goal using a target noncancer hazard = 1

" SSCGc " Site-Specific cleanup goal using a target cancer = 1×10-5 for workersSoil SSCGs based on incidental ingestion, dermal contact with soil, and outdoor air inhalation(a) Based on USEPA adult lead model, similar parameters used for the industrial worker CHHSL, and a lower exposure frequency.

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SSCGnc SSCGc

VOCs

1,1,1-Trichloroethane 71-55-6 7.4E+09 --

1,1,2,2-Tetrachloroethane 79-34-5 1.8E+07 1.2E+05

1,1,2-Trichloroethane 79-00-5 1.0E+05 8.6E+05

1,1-Dichloroethane 75-34-3 9.9E+08 2.5E+07

1,2,4-Trichlorobenzene 120-82-1 3.9E+05 --

1,2,4-Trimethylbenzene 95-63-6 2.3E+06 --

1,2-Dichloroethane 107-06-2 4.4E+06 8.5E+05

1,2-Dichloropropane 78-87-5 3.6E+06 2.5E+06

1,3,5-Trimethylbenzene 108-67-8 2.3E+06 --

1,3-Butadiene 106-99-0 3.7E+06 3.0E+05

1,4-Dichlorobenzene 106-46-7 2.3E+08 7.2E+05

1,4-Dioxane 123-91-1 1.3E+08 1.6E+05

2,2,4-Trimethylpentane 540-84-1 6.5E+08 --

2-Hexanone 591-78-6 7.9E+06 --

4-Ethyltoluene 622-96-8 2.5E+07 --

Benzene 71-43-2 3.2E+07 1.0E+06

Bromodichloromethane 75-27-4 7.2E+07 7.8E+05

Bromomethane 74-83-9 9.5E+06 --

Carbon disulfide 75-15-0 1.4E+09 --

Carbon tetrachloride 56-23-5 1.6E+08 1.1E+06

Chloroform 67-66-3 9.0E+07 4.9E+06

Chloromethane 74-87-3 1.7E+08 --

Cyclohexane 110-82-7 1.8E+10 --

Dibromochloromethane 124-48-1 6.0E+07 8.8E+05

Dichloroethene, cis-1,2- 156-59-2 8.3E+06 --

Dichloroethene, trans-1,2- 156-60-5 9.3E+07 --

Dichloropropene, trans-1,3- 10061-02-6 4.4E+07 3.9E+06

Ethanol 64-17-5 1.9E+08 --

Ethylbenzene 100-41-4 6.3E+08 7.0E+06

Heptane 142-82-5 2.3E+09 --

Hexachloro-1,3-butadiene 87-68-3 2.2E+05 8.0E+04

Hexane 110-54-3 1.7E+09 --

Isopropanol 67-63-0 5.7E+08 --

Isopropylbenzene (cumene) 98-82-8 1.5E+09 --

Methyl ethyl ketone (2-butanone) 78-93-3 1.1E+09 --

Methylene chloride 75-09-2 6.1E+08 2.8E+07

Methyl-tert-butyl ether 1634-04-4 1.8E+09 6.5E+07

Naphthalene 91-20-3 2.3E+05 6.3E+04

Propylbenzene 103-65-1 6.6E+08 --

Table A-13Site-Specific Cleanup Goals for Soil Vapor,

Construction and Utility Maintenance Worker

Chemicalof

Concern

CASNumber

Construction andUtility Maintenance Worker

Soil Vapor (µg/m3)

Former Kast PropertyCarson, California

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SSCGnc SSCGc

Table A-13Site-Specific Cleanup Goals for Soil Vapor,

Construction and Utility Maintenance Worker

Chemicalof

Concern

CASNumber

Construction andUtility Maintenance Worker

Soil Vapor (µg/m3)

Former Kast PropertyCarson, California

tert-Butyl Alcohol (TBA) 75-65-0 2.6E+08 --

Tetrachloroethene 127-18-4 5.5E+07 6.6E+06

Tetrahydrofuran 109-99-9 4.9E+08 --

Toluene 108-88-3 3.7E+09 --

Trichloroethene 79-01-6 2.0E+06 6.7E+06

Vinyl chloride 75-01-4 2.3E+08 8.3E+05

Xylene, m- 108-38-3 6.0E+07 --

Xylene, o- 95-47-6 4.8E+07 --

Xylene, p- 106-42-3 5.9E+07 --

TPHAliphatic: C5-C8 1 1.2E+09 --

Aliphatic: C9-C18 2 1.2E+08 --

Aliphatic: C19-C32 3 -- --

Aromatic: C6-C8 4 -- --

Aromatic: C9-C16 5 6.7E+06 --

Aromatic: C17-C32 6 -- --

TPHg 6 2.2E+07 --

TPHd 6 2.3E+07 --

TPHmo 6 -- --

Notes:

" -- " not applicable or not available

" SSCGnc " Site-Specific cleanup goal using a target noncancer hazard = 1

" SSCGc " Site-Specific cleanup goal using a target cancer = 1×10-5 for workers

Soil Vapor SSCGs based on outdoor air inhalation of vapors emanating from the subsurface

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Inorganics

Antimony 7440-36-0 0.74

Arsenic 7440-38-2 12

Barium 7440-39-3 267

Beryllium 7440-41-7 0.56

Cadmium 7440-43-9 3.81

Chromium 16065-83-1 32.5

Chromium VI 18540-29-9 --

Cobalt 7440-48-4 10.9

Copper 7440-50-8 59.0

Lead 7439-92-1 61.5

Mercury 7439-97-6 0.13

Molybdenum 7439-98-7 0.41

Nickel 7440-02-0 20.2

Selenium 7782-49-2 0.78

Silver 7440-22-4 1.29

Thallium 7440-28-0 0.23

Vanadium 7440-62-2 45.7

Zinc 7440-66-6 291

PAHs

Bap-TEQ 0.9

Notes:

" -- " not available

" SSCG " Site-Specific cleanup goal

Chemicalof

Concern

CASNumber

SSCG(mg/kg)

Table A-14Site-Specific Cleanup Goals for Soil, Background

Former Kast PropertyCarson, California

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Unit

ValueR

ationale

Chem

ical Properties

(µg/g) / (µg/mL)

chemical-specific

US

EP

A R

SL D

atabase

(µg/g) / (µg/mL)

chemical-specific

WE

T data, or Kd = K

oc × foc if WE

T data not available

KH

unitlesschem

ical-specificU

SE

PA

RS

L Database

unitless0.421

Site-specifc data

unitless0.239

Site-specifc data

unitless0.00825

Site-specifc data

g/cm3

1.54S

ite soil physical data

-sand

Conservative assum

ption based on boring logs

Reference:

Table A-15

Parameter

Koc

foc

Soil type

LARW

QC

B Attenuation Factor Method and U

SEPA RSL Soil C

leanup Goal M

ethod Parameters

Former Kast Property

Carson, C

alifornia

US

EP

A 2013. R

egional Screening Levels for C

hemical C

ontaminants at S

uperfund Sites. M

ay. UR

L: http://ww

w.epa.gov/region9/superfund//prg/index.htm

l

Kd

Stratum Property

Porosity

Soil w

ater content by volume

Bulk D

ensity

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ValueU

nitR

ationale

PA

nnual precipitation34.5

cm/yr

From S

EV

IEW

database

IfN

et infiltration0.0214

m/yr

Assum

ed sand soil type, Eqn. 1

WLater al w

idth of affected soil zone in direction of GW

flow184

melevated benzene plum

e length along GW

flow using 2011 and 2013 2nd quarter data

av

Vertical groundw

ater dispersivity1.03

mE

qn. 2

KH

ydraulic conductivity of water-bearing unit

2 .5m

/daydefault value for fine sand, Todd, G

roundwater H

ydrogeology, 1980

iH

ydraulic gradient of water-bearing unit

0.002m

/m2013 2nd quarter G

W m

onitoring report

bA

quifer thickness11.3

m37 ft, assum

ed the top of Gage aquifer is the low

er boundary of the shallow G

W zone

Ugw

Groundw

ater darcy velocity1.83

m/yr

Eqn. 3

δgw

Groundw

ater mixing zone thickness

11.3m

Eqn. 4 or the aquifer thickness, w

hichever is smaller.

LDF

Leachate Dilution Factor

6unitless

Eqn. 5

Notes:

Eqn. 1.

Eqn. 2.

Eqn. 3.

Table A-16

Parameter

Eqn. 4.

Eqn. 5.

Former Kast Property

Carson, C

alifornia

. SAM m

odel DAF calculation

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Chemical of Potential Concern Site Specific Kd(L/kg)

Groundwater quality criterion

(µg/L)Source

Dilution Attenuation Factor(DAF)

Soil Cleanup Goals (mg/kg)

Site-related Soil COCs

Arsenic NM 10 MCL 6.2 1.8

Benzene 28 1.0 MCL 6.2 0.13

Naphthalene 1093 17 CDPH NL 6.2 88

TPH as Diesel 4119 200 ESL-nc 6.2 3900

TPH as Gasoline 374 410 ESL-nc 6.2 730

TPH as Motor Oil 6957 6200 ESL-nc 6.2 50,000 **

Non-site-related Soil COC

1,2,3-Trichloropropane NM 0.005 CDPH NL 6.2 0.000026

1,2-Dichloroethane NM 0.5 MCL 6.2 0.0020

1,4-Dichlorobenzene NM 5.0 MCL 6.2 0.077

Antimony NM 6.0 MCL 6.2 1.7

cis-1,2-Dichloroethylene NM 6.0 MCL 6.2 0.024

tert-Butyl Alcohol NM 12 CDPH NL 6.2 0.049

Tetrachloroethene NM 5.0 MCL 6.2 0.036

Thallium NM 2.0 MCL 6.2 0.89

Trichloroethene NM 5.0 MCL 6.2 0.020

Vinyl Chloride NM 0.50 MCL 6.2 0.0020

Note:

NM - Not measured

ND - Not detected

MCL - Maximum Contaminant Level.

ESL -nc: ESL level based on non-cancer health effect.

CDPH NL - California Department of Public Health Notification Level..

PHG - California Public Health Goal.

* ESL value for 2-methylnaphthalene was used.

** Calculated cleanup level exceeded the maximum immobile residual NAPL phase concentration of 53,067 mg/kg (Cres,soil), therefore Cres,soil was used. Cres,soil obtained from: Brost, E.J. and Devaull, G.E., Non-Aqueous Phase Liquid (NAPL) Mobility Limits in Soil. Americal Petroleum Institute Research Bulletin No. 9. June 2000.

Table A-17

ESL - San Francisco Bay Regional Water Quality Control Board Environmental Screening Levels, Groundwater Screening Levels for Drinking Water.

Former Kast Property

Carson, California

Site-Specific Cleanup Goal based on Soil Leaching to Groundwater

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SB0484\SSCGs_AppendixA_Oct2013.docx October 2013

ATTACHMENTS

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ATTACHMENT A1 SSCG Derivation Spreadsheets

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onsultantsPage 1 of 2

SSCG

s_Res_O

ct2013.xls

Inorganics7440-36-0

Antimony

1.3E-054.0E-04

--6.0E-05

8.3E-12N

A3.1E+01

1.6E-06N

C--

NC

3.6E-12N

C--

7440-38-2Arsenic

1.3E-053.0E-04

1.1E-063.0E-04

8.3E-121.5E-05

2.2E+011.6E-06

9.5E+001.5E-07

9.5E+003.6E-12

3.3E-036.1E-02

7440-43-9C

admium

1.3E-051.0E-03

3.6E-082.5E-05

8.3E-122.0E-05

7.0E+011.6E-06

NC

4.9E-09N

C3.6E-12

4.2E-036.7E+04

18540-29-9C

hromium

VI1.3E-05

3.0E-03--

7.5E-058.3E-12

1.0E-042.3E+02

1.6E-065.0E-01

--N

C3.6E-12

1.5E-011.3E+00

7440-48-4C

obalt1.3E-05

3.0E-04--

3.0E-048.3E-12

6.0E-062.3E+01

1.6E-06N

C--

NC

3.6E-129.0E-03

3.1E+04

7440-50-8C

opper1.3E-05

4.0E-02--

4.0E-028.3E-12

NA

3.1E+031.6E-06

NC

--N

C3.6E-12

NC

--

7439-92-1Lead

1.3E-05N

A--

NA

8.3E-12N

A--

1.6E-06N

C--

NC

3.6E-12N

C--

7440-28-0Thallium

1.3E-051.0E-05

--1.0E-05

8.3E-12N

A7.8E-01

1.6E-06N

C--

NC

3.6E-12N

C--

7440-62-2Vanadium

1.3E-055.0E-03

--5.0E-03

8.3E-121.0E-04

3.9E+021.6E-06

NC

--N

C3.6E-12

NC

--

7440-66-6Zinc

1.3E-053.0E-01

--3.0E-01

8.3E-12N

A2.3E+04

1.6E-06N

C--

NC

3.6E-12N

C--

PAHs

56-55-3Benz[a]anthracene

1.3E-05N

A4.7E-06

NA

8.3E-12N

A--

1.6E-062.9E-01

6.4E-072.9E-01

3.6E-121.1E-04

1.6E+00

50-32-8Benzo[a]pyrene

1.3E-05N

A4.7E-06

NA

8.3E-12N

A--

1.6E-062.9E+00

6.4E-072.9E+00

3.6E-121.1E-03

1.6E-01

205-99-2Benzo[b]fluoranthene

1.3E-05N

A4.7E-06

NA

8.3E-12N

A--

1.6E-062.9E-01

6.4E-072.9E-01

3.6E-121.1E-04

1.6E+00

207-08-9Benzo[k]fluoranthene

1.3E-05N

A4.7E-06

NA

8.3E-12N

A--

1.6E-062.9E-01

6.4E-072.9E-01

3.6E-121.1E-04

1.6E+00

218-01-9C

hrysene1.3E-05

NA

4.7E-06N

A8.3E-12

NA

--1.6E-06

2.9E-026.4E-07

2.9E-023.6E-12

1.1E-051.6E+01

53-70-3D

ibenz[a,h]anthracene1.3E-05

NA

4.7E-06N

A8.3E-12

NA

--1.6E-06

4.1E+006.4E-07

4.1E+003.6E-12

1.2E-031.1E-01

193-39-5Indeno[1,2,3-cd]pyrene

1.3E-05N

A4.7E-06

NA

8.3E-12N

A--

1.6E-062.9E-01

6.4E-072.9E-01

3.6E-121.1E-04

1.6E+00

90-12-0M

ethylnaphthalene, 1-1.3E-05

7.0E-024.7E-06

7.0E-021.4E-05

NA

4.0E+031.6E-06

2.9E-026.4E-07

2.9E-025.9E-06

NC

1.6E+01

91-57-6M

ethylnaphthalene, 2-1.3E-05

4.0E-034.7E-06

4.0E-031.4E-05

NA

2.3E+021.6E-06

NC

6.4E-07N

C6.1E-06

NC

--

91-20-3N

aphthalene1.3E-05

2.0E-024.7E-06

2.0E-021.7E-05

3.0E-031.5E+02

1.6E-06N

C6.4E-07

NC

7.4E-063.4E-05

4.0E+00

129-00-0Pyrene

1.3E-053.0E-02

4.7E-063.0E-02

2.5E-071.1E-01

1.7E+031.6E-06

NC

6.4E-07N

C1.1E-07

NC

--

TPH1

Aliphatic: C5-C

81.3E-05

4.0E-024.7E-06

4.0E-026.8E-04

7.0E-017.1E+02

1.6E-06N

C6.4E-07

NC

2.9E-04N

C--

2A liphatic: C

9-C18

1. 3E-051.0E-01

4.7E-061.0E-01

1.6E-043.0E-01

1.4E+031.6E-06

NC

6.4E-07N

C6.7E-05

NC

--

3Aliphatic: C

19-C32

1.3E-052.0E+00

4.7E-062.0E+00

--N

A1.1E+05

1.6E-06N

C6.4E-07

NC

--N

C--

4A rom

atic: C6-C

81. 3E-05

NA

4.7E-06N

A2.2E-04

NA

--1.6E-06

NC

6.4E-07N

C9.6E-05

NC

--

Carson, C

aliforniaForm

er Kast P

roperty

Attachm

ent A1, Table A

1-1D

erivation of Site-S

pecific Cleanup G

oals, Soil

Onsite R

esident

CAS

Num

ber

Chem

icalof

Concern

Noncancer Effects

Cancer Effects

IngestionD

ermal C

ontactO

utdoor Inhalation

SSCG

soil-nc

(mg/kg)

IngestionD

ermal C

ontactO

utdoor Inhalation

SSCG

soil-c

(mg/kg)

Reference

Concentration (m

g/m3)

IForal

(mg/kg-day)

Reference D

ose(m

g/kg-day)

IFderm

al

(mg/kg-day)

Reference D

ose(m

g/kg-day)

ECinh,soil

(mg/m

3-m

g/kg)

IForal

(mg/kg-day)

Cancer

Slope Factor(m

g/kg-day) -1

IFderm

al

(mg/kg-day)

Cancer Slope

Factor(m

g/kg-day) -1

ECinh,soil

(mg/m

3-m

g/kg)

InhalationU

nit Risk

(µg/m3) -1

Page 101: Table Proposed Cleanup Levels Groundwater · 10/21/2013  · Table 04 Summery of PrsllMnery Cost ES11motee for Soleening Feasibility Study Former Kest Property Carson, CA GeotFnlenGOneullanle

Geosyntec C

onsultantsPage 2 of 2

SSCG

s_Res_O

ct2013.xls

Carson, C

aliforniaForm

er Kast P

roperty

Attachm

ent A1, Table A

1-1D

erivation of Site-S

pecific Cleanup G

oals, Soil

Onsite R

esident

CAS

Num

ber

Chem

icalof

Concern

Noncancer Effects

Cancer Effects

IngestionD

ermal C

ontactO

utdoor Inhalation

SSCG

soil-nc

(mg/kg)

IngestionD

ermal C

ontactO

utdoor Inhalation

SSCG

soil-c

(mg/kg)

Reference

Concentration (m

g/m3)

IForal

(mg/kg-day)

Reference D

ose(m

g/kg-day)

IFderm

al

(mg/kg-day)

Reference D

ose(m

g/kg-day)

ECinh,soil

(mg/m

3-m

g/kg)

IForal

(mg/kg-day)

Cancer

Slope Factor(m

g/kg-day) -1

IFderm

al

(mg/kg-day)

Cancer Slope

Factor(m

g/kg-day) -1

ECinh,soil

(mg/m

3-m

g/kg)

InhalationU

nit Risk

(µg/m3) -1

5Arom

atic: C9-C

161.3E-05

3.0E-024.7E-06

3.0E-025.3E-05

5.0E-026.0E+02

1.6E-06N

C6.4E-07

NC

2.3E-05N

C--

6Arom

atic: C17-C

321.3E-05

3.0E-024.7E-06

3.0E-02--

NA

1.7E+031.6E-06

NC

6.4E-07N

C--

NC

--

SVOC

s121-14-2

2,4-Dinitrotoluene

1.3E-052.0E-03

3.7E-062.0E-03

8.3E-127.0E-03

1.2E+021.6E-06

3.1E-015.0E-07

3.1E-013.6E-12

8.9E-051.6E+00

117-81-7Bis(2-Ethylhexyl) Phthalate

1.3E-052.0E-02

3.6E-062.0E-02

8.3E-127.0E-02

1.2E+031.6E-06

1.4E-024.9E-07

1.4E-023.6E-12

2.4E-063.5E+01

VOC

s79-34-5

1,1,2,2-Tetrachloroethane1.3E-05

2.0E-02--

2.0E-026.9E-05

7.0E-026.2E+02

1.6E-062.7E-01

--2.7E-01

2.9E-055.8E-05

4.7E-01

96-18-41,2,3-Trichloropropane

1.3E-054.0E-03

--4.0E-03

1.3E-043.0E-04

2.4E+001.6E-06

3.0E+01--

3.0E+015.4E-05

NC

2.1E-02

95-63-61,2,4-Trim

ethylbenzene1.3E-05

1.0E-02--

1.0E-027.6E-05

7.0E-038.3E+01

1.6E-06N

C--

NC

3.2E-05N

C--

78-87-51,2-D

ichloropropane 1.3E-05

9.0E-02--

9.0E-022.7E-04

4.0E-031.5E+01

1.6E-063.6E-02

--3.6E-02

1.2E-041.0E-05

8.3E-01

108-67-81,3,5-Trim

ethylbenzene1.3E-05

1.0E-02--

1. 0E-027.4E-05

7.0E-038.5E+01

1.6E-06N

C--

NC

3.2E-05N

C--

106-46-71,4-D

ichlorobenzene1.3E-05

7.0E-02--

7.0E-027.4E-05

8.0E-013.6E+03

1.6E-065.4E-03

--5.4E-03

3.2E-051.1E-05

2.8E+00

71-43-2Benzene

1.3E-054.0E-03

--4.0E-03

3.5E-043.0E-02

6.7E+011.6E-06

1.0E-01--

1.0E-011.5E-04

2.9E-052.2E-01

75-27-4Brom

odichloromethane

1.3E-052.0E-02

--2.0E-02

1.2E-047.0E-02

4.3E+021.6E-06

1.3E-01--

1.3E-015.0E-05

3.7E-054.9E-01

74-83-9Brom

omethane

1.3E-051.4E-03

--1.4E-03

5.2E-045.0E-03

8.8E+001.6E-06

NC

--N

C2.2E-04

NC

--

100-41-4Ethylbenzene

1.3E-051.0E-01

--1.0E-01

1.8E-041.0E+00

3.3E+031.6E-06

1.1E-02--

1.1E-027.7E-05

2.5E-064.8E+00

75-09-2M

ethylene chloride1.3E-05

6.0E-03--

6.0E-033.9E-04

6.0E-013.6E+02

1.6E-061.4E-02

--1.4E-02

1.7E-041.0E-06

5.3E+00

127-18-4Tetrachloroethene

1.3E-056.0E-03

--6.0E-03

3.8E-044.0E-02

8.6E+011.6E-06

5.4E-01--

5.4E-011.6E-04

5.9E-065.5E-01

79-01-6Trichloroethene

1.3E-055.0E-04

--5.0E-04

3.0E-042.0E-03

5.8E+008.3E-06

4.6E-02--

4.6E-024.5E-04

4.1E-061.2E+00

75-01-4Vinyl chloride

1.3E-053.0E-03

--3.0E-03

9.3E-041.0E-01

7.4E+011.6E-06

2.7E-01--

2. 7E-014.0E-04

7.8E-053.2E-02

Note: " -- " not applicable

Page 102: Table Proposed Cleanup Levels Groundwater · 10/21/2013  · Table 04 Summery of PrsllMnery Cost ES11motee for Soleening Feasibility Study Former Kest Property Carson, CA GeotFnlenGOneullanle

Geosyntec C

onsultantsPage 1 of 2

SSCG

s_Res_O

ct2013.xls

Inorganics7440-36-0

Antimony

1.5E-074.0E-04

--6.0E-05

9.5E-14N

A2.7E+03

1.8E-08N

C--

NC

4.1E-14N

C--

7440-38-2Arsenic

1.5E-073.0E-04

1.2E-083.0E-04

9.5E-141.5E-05

1.9E+031.8E-08

9.5E+001.7E-09

9.5E+004.1E-14

3.3E-035.4E+00

7440-43-9C

admium

1.5E-071.0E-03

4.1E-102.5E-05

9.5E-142.0E-05

6.2E+031.8E-08

NC

5.6E-11N

C4.1E-14

4.2E-035.8E+06

18540-29-9C

hromium

VI1.5E-07

3.0E-03--

7.5E-059.5E-14

1.0E-042.1E+04

1.8E-085.0E-01

--N

C4.1E-14

1.5E-011.1E+02

7440-48-4C

obalt1.5E-07

3.0E-04--

3.0E-049.5E-14

6.0E-062.1E+03

1.8E-08N

C--

NC

4.1E-149.0E-03

2.7E+06

7440-50-8C

opper1.5E-07

4.0E-02--

4.0E-029.5E-14

NA

2.7E+051.8E-08

NC

--N

C4.1E-14

NC

--

7439-92-1Lead

1.5E-07N

A--

NA

9.5E-14N

A--

1.8E-08N

C--

NC

4.1E-14N

C--

7440-28-0Thallium

1.5E-071.0E-05

--1.0E-05

9.5E-14N

A6.8E+01

1.8E-08N

C--

NC

4.1E-14N

C--

7440-62-2Vanadium

1.5E-075.0E-03

--5.0E-03

9.5E-141.0E-04

3.4E+041.8E-08

NC

--N

C4.1E-14

NC

--

7440-66-6Zinc

1.5E-073.0E-01

--3.0E-01

9.5E-14N

A2.1E+06

1.8E-08N

C--

NC

4.1E-14N

C--

PAHs

56-55-3Benz[a]anthracene

1.5E-07N

A5.3E-08

NA

9.5E-14N

A--

1.8E-082.9E-01

7.3E-092.9E-01

4.1E-141.1E-04

1.4E+02

50-32-8Benzo[a]pyrene

1.5E-07N

A5.3E-08

NA

9.5E-14N

A--

1.8E-082.9E+00

7.3E-092.9E+00

4.1E-141.1E-03

1.4E+01

205-99-2Benzo[b]fluoranthene

1.5E-07N

A5.3E-08

NA

9.5E-14N

A--

1.8E-082.9E-01

7.3E-092.9E-01

4.1E-141.1E-04

1.4E+02

207-08-9Benzo[k]fluoranthene

1.5E-07N

A5.3E-08

NA

9.5E-14N

A--

1.8E-082.9E-01

7.3E-092.9E-01

4.1E-141.1E-04

1.4E+02

218-01-9C

hrysene1.5E-07

NA

5.3E-08N

A9.5E-14

NA

--1.8E-08

2.9E-027.3E-09

2.9E-024.1E-14

1.1E-051.4E+03

53-70-3D

ibenz[a,h]anthracene1.5E-07

NA

5.3E-08N

A9.5E-14

NA

--1.8E-08

4.1E+007.3E-09

4.1E+004.1E-14

1.2E-039.7E+00

193-39-5Indeno[1,2,3-cd]pyrene

1.5E-07N

A5.3E-08

NA

9.5E-14N

A--

1.8E-082.9E-01

7.3E-092.9E-01

4.1E-141.1E-04

1.4E+02

90-12-0M

ethylnaphthalene, 1-1.5E-07

7.0E-025.3E-08

7.0E-021.6E-07

NA

3.5E+051.8E-08

2.9E-027.3E-09

2.9E-026.7E-08

NC

1.4E+03

91-57-6M

ethylnaphthalene, 2-1.5E-07

4.0E-035.3E-08

4.0E-031.6E-07

NA

2.0E+041.8E-08

NC

7.3E-09N

C7.0E-08

NC

--

91-20-3N

aphthalene1.5E-07

2.0E-025.3E-08

2.0E-022.0E-07

3.0E-031.3E+04

1.8E-08N

C7.3E-09

NC

8.5E-083.4E-05

3.5E+02

129-00-0Pyrene

1.5E-073.0E-02

5.3E-083.0E-02

2.9E-091.1E-01

1.5E+051.8E-08

NC

7.3E-09N

C1.2E-09

NC

--

TPH1

Aliphatic: C5-C

81.5E-07

4.0E-025.3E-08

4.0E-027.8E-06

7.0E-016.2E+04

1.8E-08N

C7.3E-09

NC

3.3E-06N

C--

2A liphatic: C

9-C18

1. 5E-071.0E-01

5.3E-081.0E-01

1.8E-063.0E-01

1.3E+051.8E-08

NC

7.3E-09N

C7.6E-07

NC

--

3Aliphatic: C

19-C32

1.5E-072.0E+00

5.3E-082.0E+00

--N

A1.0E+07

1.8E-08N

C7.3E-09

NC

--N

C--

4A rom

atic: C6-C

81. 5E-07

NA

5.3E-08N

A2.6E-06

NA

--1.8E-08

NC

7.3E-09N

C1.1E-06

NC

--

Attachm

ent A1, Table A

1-2

Former K

ast Property

Carson, C

alifornia

CAS

Num

ber

Noncancer Effects

ECinh,soil

(mg/m

3-m

g/kg)

InhalationU

nit Risk

(µg/m3) -1

Cancer Effects

Cancer Slope

Factor(m

g/kg-day) -1

Chem

icalof

Concern

SSCG

soil-nc

(mg/kg)

IForal

(mg/kg-day)

ECinh,soil

(mg/m

3-m

g/kg)

Reference

Concentration (m

g/m3)

Outdoor Inhalation

Reference D

ose(m

g/kg-day)

Cancer

Slope Factor(m

g/kg-day) -1

IFderm

al

(mg/kg-day)

IFderm

al

(mg/kg-day)

Derivation of S

ite-Specific C

leanup Goals, S

oilO

nsite Resident, Infrequent E

xposure to Subsurface S

oils

Reference D

ose(m

g/kg-day)

SSCG

soil-c

(mg/kg)

IngestionD

ermal C

ontactIngestion

Derm

al Contact

Outdoor Inhalation

IForal

(mg/kg-day)

Page 103: Table Proposed Cleanup Levels Groundwater · 10/21/2013  · Table 04 Summery of PrsllMnery Cost ES11motee for Soleening Feasibility Study Former Kest Property Carson, CA GeotFnlenGOneullanle

Geosyntec C

onsultantsPage 2 of 2

SSCG

s_Res_O

ct2013.xls

Attachm

ent A1, Table A

1-2

Former K

ast Property

Carson, C

alifornia

CAS

Num

ber

Noncancer Effects

ECinh,soil

(mg/m

3-m

g/kg)

InhalationU

nit Risk

(µg/m3) -1

Cancer Effects

Cancer Slope

Factor(m

g/kg-day) -1

Chem

icalof

Concern

SSCG

soil-nc

(mg/kg)

IForal

(mg/kg-day)

ECinh,soil

(mg/m

3-m

g/kg)

Reference

Concentration (m

g/m3)

Outdoor Inhalation

Reference D

ose(m

g/kg-day)

Cancer

Slope Factor(m

g/kg-day) -1

IFderm

al

(mg/kg-day)

IFderm

al

(mg/kg-day)

Derivation of S

ite-Specific C

leanup Goals, S

oilO

nsite Resident, Infrequent E

xposure to Subsurface S

oils

Reference D

ose(m

g/kg-day)

SSCG

soil-c

(mg/kg)

IngestionD

ermal C

ontactIngestion

Derm

al Contact

Outdoor Inhalation

IForal

(mg/kg-day)

5Arom

atic: C9-C

161.5E-07

3.0E-025.3E-08

3.0E-026.1E-07

5.0E-025.3E+04

1.8E-08N

C7.3E-09

NC

2.6E-07N

C--

6Arom

atic: C17-C

321.5E-07

3.0E-025.3E-08

3.0E-02--

NA

1.5E+051.8E-08

NC

7.3E-09N

C--

NC

--

SVOC

s121-14-2

2,4-Dinitrotoluene

1.5E-072.0E-03

4.2E-082.0E-03

9.5E-147.0E-03

1.1E+041.8E-08

3.1E-015.8E-09

3.1E-014.1E-14

8.9E-051.4E+02

117-81-7Bis(2-Ethylhexyl) Phthalate

1.5E-072.0E-02

4.1E-082.0E-02

9.5E-147.0E-02

1.1E+051.8E-08

1.4E-025.6E-09

1.4E-024.1E-14

2.4E-063.0E+03

VOC

s79-34-5

1,1,2,2-Tetrachloroethane1.5E-07

2.0E-02--

2.0E-027.8E-07

7.0E-025.4E+04

1.8E-082.7E-01

--2.7E-01

3.4E-075.8E-05

4.1E+01

96-18-41,2,3-Trichloropropane

1.5E-074.0E-03

--4.0E-03

1.4E-063.0E-04

2.1E+021.8E-08

3.0E+01--

3.0E+016.1E-07

NC

1.9E+00

95-63-61,2,4-Trim

ethylbenzene1.5E-07

1.0E-02--

1.0E-028.7E-07

7.0E-037.2E+03

1.8E-08N

C--

NC

3.7E-07N

C--

78-87-51,2-D

ichloropropane 1.5E-07

9.0E-02--

9.0E-023.1E-06

4.0E-031.3E+03

1.8E-083.6E-02

--3.6E-02

1.3E-061.0E-05

7.2E+01

108-67-81,3,5-Trim

ethylbenzene1.5E-07

1.0E-02--

1. 0E-028.4E-07

7.0E-037.4E+03

1.8E-08N

C--

NC

3.6E-07N

C--

106-46-71,4-D

ichlorobenzene1.5E-07

7.0E-02--

7.0E-028.5E-07

8.0E-013.2E+05

1.8E-085.4E-03

--5.4E-03

3.6E-071.1E-05

2.4E+02

71-43-2Benzene

1.5E-074.0E-03

--4.0E-03

4.0E-063.0E-02

5.8E+031.8E-08

1.0E-01--

1.0E-011.7E-06

2.9E-051.9E+01

75-27-4Brom

odichloromethane

1.5E-072.0E-02

--2.0E-02

1.3E-067.0E-02

3.8E+041.8E-08

1.3E-01--

1.3E-015.7E-07

3.7E-054.2E+01

74-83-9Brom

omethane

1.5E-071.4E-03

--1.4E-03

6.0E-065.0E-03

7.7E+021.8E-08

NC

--N

C2.6E-06

NC

--

100-41-4Ethylbenzene

1.5E-071.0E-01

--1.0E-01

2.0E-061.0E+00

2.9E+051.8E-08

1.1E-02--

1.1E-028.8E-07

2.5E-064.2E+02

75-09-2M

ethylene chloride1.5E-07

6.0E-03--

6.0E-034.4E-06

6.0E-013.2E+04

1.8E-081.4E-02

--1.4E-02

1.9E-061.0E-06

4.7E+02

127-18-4Tetrachloroethene

1.5E-076.0E-03

--6.0E-03

4.3E-064.0E-02

7.5E+031.8E-08

5.4E-01--

5.4E-011.9E-06

5.9E-064.9E+01

79-01-6Trichloroethene

1.5E-075.0E-04

--5.0E-04

3.4E-062.0E-03

5.0E+029.5E-08

4.6E-02--

4.6E-025.1E-06

4.1E-061.0E+02

75-01-4Vinyl chloride

1.5E-073.0E-03

--3.0E-03

1.1E-051.0E-01

6.4E+031.8E-08

2.7E-01--

2. 7E-014.6E-06

7.8E-052.8E+00

Note: " -- " not applicable

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Calculations of Prelim

inary Rem

ediation Goals (PR

Gs)

U.S. E

PA T

echnical Review

Workgroup for L

ead, Adult L

ead Com

mittee

Version date 6/21/09

Variable

Description of V

ariableU

nitsG

SDi and PbB

o from

Analysis of N

HA

NE

S 1999-2004

PbBfetal, 0.90

90th percentile PbB

in fetus ug/dL

1R

fetal/maternal

Fetal/maternal PbB

ratio --

0.9B

KSF

Biokinetic Slope Factor

ug/dL per ug/day0.4

GSD

iG

eometric standard deviation PbB

--1.8

PbB0

Baseline PbB

ug/dL0.0

IRS

Soil ingestion rate (including soil-derived indoor dust)g/day

0.100A

FS, D

Absorption fraction (sam

e for soil and dust)--

0.12EF

S, DExposure frequency (sam

e for soil and dust)days/yr

12A

TS, D

Averaging tim

e (same for soil and dust)

days/yr90

PRG

mg/kg

818

Attachm

ent A1, Table A

1-3D

erivation of Site-S

pecific Cleanup G

oal, Lead in Soil

Onsite R

esident, Infrequent Exposure to S

ubsurface Soils

Former K

ast Property

Carson, C

alifornia

Geosyntec C

onsultantsP

age 1 of 1S

SC

Gs_R

es_Oct2013.xls

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onsultantsPage 1 of 2

SSCG

s_Res_O

ct2013.xls

71-55-61,1,1-Trichloroethane

5.0E+005.2E+03

5.2E+06N

C--

--

79-34-51,1,2,2-Tetrachloroethane

7.0E-027.3E+01

7.3E+045.8E-05

4.2E-024.2E+01

79-00-51,1,2-Trichloroethane

2.0E-042.1E-01

2.1E+021.6E-05

1.5E-011.5E+02

75-34-31,1-D

ichloroethane7.0E-01

7.3E+027.3E+05

1.6E-061.5E+00

1.5E+03

120-82-11,2,4-Trichlorobenzene

2.0E-032.1E+00

2.1E+03N

C--

--

95-63-61,2,4-Trim

ethylbenzene7.0E-03

7.3E+007.3E+03

NC

----

107-06-21,2-D

ichloroethane7.0E-03

7.3E+007.3E+03

2.1E-051.2E-01

1.2E+02

78-87-51,2-D

ichloropropane 4.0E-03

4.2E+004.2E+03

1.0E-052.4E-01

2.4E+02

108-67-81,3,5-Trim

ethylbenzene7.0E-03

7.3E+007.3E+03

NC

----

106-99-01,3-Butadiene

2.0E-032.1E+00

2.1E+031.7E-04

1.4E-021.4E+01

106-46-71,4-D

ichlorobenzene8.0E-01

8.3E+028.3E+05

1.1E-052.2E-01

2.2E+02

123-91-11,4-D

ioxane 3.0E+00

3.1E+033.1E+06

7.7E-063.2E-01

3.2E+02

540-84-12,2,4-Trim

ethylpentane1.0E+00

1.0E+031.0E+06

NC

----

591-78-62-H

exanone3.0E-02

3.1E+013.1E+04

NC

----

622-96-84-Ethyltoluene

1.0E-011.0E+02

1.0E+05N

C--

--

71-43-2Benzene

3.0E-023.1E+01

3.1E+042.9E-05

8.4E-028.4E+01

75-27-4Brom

odichloromethane

7.0E-027.3E+01

7.3E+043.7E-05

6.6E-026.6E+01

74-83-9Brom

omethane

5.0E-035.2E+00

5.2E+03N

C--

--

75-15-0C

arbon disulfide7.0E-01

7.3E+027.3E+05

NC

----

56-23-5C

arbon tetrachloride1.0E-01

1.0E+021.0E+05

4.2E-055.8E-02

5.8E+01

67-66-3C

hloroform9.8E-02

1.0E+021.0E+05

5.3E-064.6E-01

4.6E+02

74-87-3C

hloromethane

9.0E-029.4E+01

9.4E+04N

C--

--

110-82-7C

yclohexane 6.0E+00

6.3E+036.3E+06

NC

----

124-48-1D

ibromochlorom

ethane7.0E-02

7.3E+017.3E+04

2.7E-059.0E-02

9.0E+01

156-59-2D

ichloroethene, cis-1,2-7.0E-03

7.3E+007.3E+03

NC

----

156-60-5D

ichloroethene, trans-1,2-6.0E-02

6.3E+016.3E+04

NC

----

10061-02-6D

ichloropropene, trans-1,3-2.0E-02

2.1E+012.1E+04

1.6E-051.5E-01

1.5E+02

64-17-5Ethanol

4.0E+004.2E+03

4.2E+06N

C--

--

100-41-4Ethylbenzene

1.0E+001.0E+03

1.0E+062.5E-06

9.7E-019.7E+02

Indoor AirSSC

Gc

(µg/m3)

Noncancer Effects

Sub-SlabSoil Vapor

SSCG

nc

(µg/m3)

Cancer Effects

Sub-SlabSoil Vapor

SSCG

c

(µg/m3)

Attachm

ent A1, Table A

1-4D

erivation of Site-S

pecific Cleanup G

oals, Sub-S

lab Soil V

aporO

nsite Resident

Former K

ast Property

Carson, C

alifornia

Reference

Concentration (m

g/m3)

Indoor AirSSC

Gnc

(µg/m3)

InhalationU

nit Risk

(µg/m3) -1

CAS

Num

ber

Chem

icalof

Concern

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Geosyntec C

onsultantsPage 2 of 2

SSCG

s_Res_O

ct2013.xls

Indoor AirSSC

Gc

(µg/m3)

Noncancer Effects

Sub-SlabSoil Vapor

SSCG

nc

(µg/m3)

Cancer Effects

Sub-SlabSoil Vapor

SSCG

c

(µg/m3)

Attachm

ent A1, Table A

1-4D

erivation of Site-S

pecific Cleanup G

oals, Sub-S

lab Soil V

aporO

nsite Resident

Former K

ast Property

Carson, C

alifornia

Reference

Concentration (m

g/m3)

Indoor AirSSC

Gnc

(µg/m3)

InhalationU

nit Risk

(µg/m3) -1

CAS

Num

ber

Chem

icalof

Concern

142-82-5H

eptane7.0E-01

7.3E+027.3E+05

NC

----

87-68-3H

exachloro-1,3-butadiene3.5E-03

3.7E+003.7E+03

2.2E-051.1E-01

1.1E+02

110-54-3H

exane 7.0E-01

7.3E+027.3E+05

NC

----

67-63-0Isopropanol

7.0E+007.3E+03

7.3E+06N

C--

--

98-82-8Isopropylbenzene (cum

ene)4.0E-01

4.2E+024.2E+05

NC

----

78-93-3M

ethyl ethyl ketone (2-butanone)5.0E+00

5.2E+035.2E+06

NC

----

75-09-2M

ethylene chloride6.0E-01

6.3E+026.3E+05

1.0E-062.4E+00

2.4E+03

1634-04-4M

ethyl-tert-butyl ether3.0E+00

3.1E+033.1E+06

2.6E-079.4E+00

9.4E+03

91-20-3N

aphthalene3.0E-03

3.1E+003.1E+03

3.4E-057.2E-02

7.2E+01

103-65-1Propylbenzene

1.0E+001.0E+03

1.0E+06N

C--

--

75-65-0tert-Butyl Alcohol (TBA)

1.1E+001.1E+03

1.1E+06N

C--

--

127-18-4Tetrachloroethene

4.0E-024.2E+01

4.2E+045.9E-06

4.1E-014.1E+02

109-99-9Tetrahydrofuran

2.0E+002.1E+03

2.1E+06N

C--

--

108-88-3Toluene

5.0E+005.2E+03

5.2E+06N

C--

--

79-01-6Trichloroethene

2.0E-032.1E+00

2.1E+034.1E-06

4.3E-014.3E+02

75-01-4Vinyl chloride

1.0E-011.0E+02

1.0E+057.8E-05

3.1E-023.1E+01

108-38-3Xylene, m

-1.0E-01

1.0E+021.0E+05

NC

----

95-47-6Xylene, o-

1.0E-011.0E+02

1.0E+05N

C--

--

106-42-3Xylene, p-

1.0E-011.0E+02

1.0E+05N

C--

--

TPH1

Aliphatic: C5-C

87.0E-01

7.3E+027.3E+05

NC

----

2A liphatic: C

9-C18

3. 0E-013.1E+02

3.1E+05N

C--

--

3A liphatic: C

19-C32

NA

----

NC

----

4A rom

atic: C6-C

8N

A--

--N

C--

--

5Arom

atic: C9-C

165.0E-02

5.2E+015.2E+04

NC

----

6A rom

atic: C17-C

32N

A--

--N

C--

--

Note: " -- " not applicable or not available

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onsultantsPage 1 of 2

SSCG

s_UtilityW

_Oct2013.xls

Attachm

ent A1, Table A

1-5

Former K

ast Property

Carson, C

alifornia

Inorganics7440-36-0

Antimony

1.3E-074.0E-04

--6.0E-05

2.7E-08N

A3.1E+03

4.6E-08N

C--

NC

9.8E-09N

C--

7440-38-2Arsenic

1.3E-073.0E-04

5.4E-083.0E-04

2.7E-081.5E-05

4.1E+024.6E-08

9.5E+001.9E-08

9.5E+009.8E-09

3.3E-031.5E+01

7440-43-9C

admium

1.3E-071.0E-03

1.8E-092.5E-05

2.7E-082.0E-05

6.4E+024.6E-08

NC

6.4E-10N

C9.8E-09

4.2E-032.4E+02

18540-29-9C

hromium

VI1.3E-07

3.0E-03--

7.5E-052.7E-08

1.0E-043.2E+03

4.6E-085.0E-01

--N

C9.8E-09

1.5E-016.7E+00

7440-48-4C

obalt1.3E-07

3.0E-04--

3.0E-042.7E-08

6.0E-062.0E+02

4.6E-08N

C--

NC

9.8E-099.0E-03

1.1E+02

7440-50-8C

opper1.3E-07

4.0E-02--

4.0E-022.7E-08

NA

3.1E+054.6E-08

NC

--N

C9.8E-09

NC

--

7439-92-1Lead

1.3E-07N

A--

NA

2.7E-08N

A--

4.6E-08N

C--

NC

9.8E-09N

C--

7440-28-0Thallium

1.3E-071.0E-05

--1.0E-05

2.7E-08N

A7.7E+01

4.6E-08N

C--

NC

9.8E-09N

C--

7440-62-2Vanadium

1.3E-075.0E-03

--5.0E-03

2.7E-081.0E-04

3.3E+034.6E-08

NC

--N

C9.8E-09

NC

--

7440-66-6Zinc

1.3E-073.0E-01

--3.0E-01

2.7E-08N

A2.3E+06

4.6E-08N

C--

NC

9.8E-09N

C--

PAHs

56-55-3Benz[a]anthracene

1.3E-07N

A2.3E-07

NA

2.7E-08N

A--

4.6E-082.9E-01

8.3E-082.9E-01

9.8E-091.1E-04

2.6E+02

50-32-8Benzo[a]pyrene

1.3E-07N

A2.3E-07

NA

2.7E-08N

A--

4.6E-082.9E+00

8.3E-082.9E+00

9.8E-091.1E-03

2.6E+01

205-99-2Benzo[b]fluoranthene

1.3E-07N

A2.3E-07

NA

2.7E-08N

A--

4.6E-082.9E-01

8.3E-082.9E-01

9.8E-091.1E-04

2.6E+02

207-08-9Benzo[k]fluoranthene

1.3E-07N

A2.3E-07

NA

2.7E-08N

A--

4.6E-082.9E-01

8.3E-082.9E-01

9.8E-091.1E-04

2.6E+02

218-01-9C

hrysene1.3E-07

NA

2.3E-07N

A2.7E-08

NA

--4.6E-08

2.9E-028.3E-08

2.9E-029.8E-09

1.1E-052.6E+03

53-70-3D

ibenz[a,h]anthracene1.3E-07

NA

2.3E-07N

A2.7E-08

NA

--4.6E-08

4.1E+008.3E-08

4.1E+009.8E-09

1.2E-031.9E+01

193-39-5Indeno[1,2,3-cd]pyrene

1.3E-07N

A2.3E-07

NA

2.7E-08N

A--

4.6E-082.9E-01

8.3E-082.9E-01

9.8E-091.1E-04

2.6E+02

90-12-0M

ethylnaphthalene, 1-1.3E-07

7.0E-022.3E-07

7.0E-021.7E-05

NA

1.9E+054.6E-08

2.9E-028.3E-08

2.9E-026.0E-06

NC

2.7E+03

91-57-6M

ethylnaphthalene, 2-1.3E-07

4.0E-032.3E-07

4.0E-031.7E-05

NA

1.1E+044.6E-08

NC

8.3E-08N

C6.2E-06

NC

--

91-20-3N

aphthalene1.3E-07

2.0E-022.3E-07

2.0E-022.1E-05

3.0E-031.4E+02

4.6E-08N

C8.3E-08

NC

7.6E-063.4E-05

3.9E+01

129-00-0Pyrene

1.3E-073.0E-02

2.3E-073.0E-02

3.1E-071.1E-01

6.7E+044.6E-08

NC

8.3E-08N

C1.1E-07

NC

--

TPH1

Aliphatic: C5-C

81.3E-07

4.0E-022.3E-07

4.0E-028.4E-04

7.0E-018.3E+02

4.6E-08N

C8.3E-08

NC

3.0E-04N

C--

2A liphatic: C

9-C18

1. 3E-071.0E-01

2.3E-071.0E-01

1.9E-043.0E-01

1.6E+034.6E-08

NC

8.3E-08N

C6.8E-05

NC

--

3A liphatic: C

19-C32

1. 3E-072.0E+00

2.3E-072.0E+00

--N

A5.5E+06

4.6E-08N

C8.3E-08

NC

--N

C--

4A rom

atic: C6-C

81. 3E-07

NA

2.3E-07N

A2.8E-04

NA

--4.6E-08

NC

8.3E-08N

C9.8E-05

NC

--

5Arom

atic: C9-C

161.3E-07

3.0E-022.3E-07

3.0E-026.6E-05

5.0E-027.5E+02

4.6E-08N

C8.3E-08

NC

2.3E-05N

C--

Derivation of S

ite-Specific C

leanup Goals, S

oilC

onstruction and Utility M

aintenance Worker

Outdoor Inhalation

Cancer Effects

SSCG

soil-c

(mg/kg)

Chem

icalof

Concern

CAS

Num

ber

Outdoor Inhalation

Noncancer Effects

SSCG

soil-nc

(mg/kg)

IngestionD

ermal C

ontact

InhalationU

nit Risk

(µg/m3) -1

ECinh,soil

(mg/m

3-m

g/kg)

Ingestion

IFderm

al

(mg/kg-day)

Cancer Slope

Factor(m

g/kg-day) -1

Reference

Concentration (m

g/m3)

ECinh,soil

(mg/m

3-m

g/kg)

IForal

(mg/kg-day)

IForal

(mg/kg-day)

Reference D

ose(m

g/kg-day)

Cancer Slope

Factor(m

g/kg-day) -1

IFderm

al

(mg/kg-day)

Derm

al Contact

Reference D

ose(m

g/kg-day)

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Geosyntec C

onsultantsPage 2 of 2

SSCG

s_UtilityW

_Oct2013.xls

Attachm

ent A1, Table A

1-5

Former K

ast Property

Carson, C

alifornia

Derivation of S

ite-Specific C

leanup Goals, S

oilC

onstruction and Utility M

aintenance Worker

Outdoor Inhalation

Cancer Effects

SSCG

soil-c

(mg/kg)

Chem

icalof

Concern

CAS

Num

ber

Outdoor Inhalation

Noncancer Effects

SSCG

soil-nc

(mg/kg)

IngestionD

ermal C

ontact

InhalationU

nit Risk

(µg/m3) -1

ECinh,soil

(mg/m

3-m

g/kg)

Ingestion

IFderm

al

(mg/kg-day)

Cancer Slope

Factor(m

g/kg-day) -1

Reference

Concentration (m

g/m3)

ECinh,soil

(mg/m

3-m

g/kg)

IForal

(mg/kg-day)

IForal

(mg/kg-day)

Reference D

ose(m

g/kg-day)

Cancer Slope

Factor(m

g/kg-day) -1

IFderm

al

(mg/kg-day)

Derm

al Contact

Reference D

ose(m

g/kg-day)

6Arom

atic: C17-C

321.3E-07

3.0E-022.3E-07

3.0E-02--

NA

8.3E+044.6E-08

NC

8.3E-08N

C--

NC

--

SVOC

s121-14-2

2,4-Dinitrotoluene

1.3E-072.0E-03

1.8E-072.0E-03

2.7E-087.0E-03

6.3E+034.6E-08

3.1E-016.5E-08

3.1E-019.8E-09

8.9E-052.8E+02

117-81-7Bis(2-Ethylhexyl) Phthalate

1.3E-072.0E-02

1.8E-072.0E-02

2.7E-087.0E-02

6.3E+044.6E-08

1.4E-026.4E-08

1.4E-029.8E-09

2.4E-066.4E+03

VOC

s79-34-5

1,1,2,2-Tetrachloroethane1.3E-07

2.0E-02--

2.0E-028.4E-05

7.0E-028.3E+02

4.6E-082.7E-01

--2.7E-01

3.0E-055.8E-05

5.7E+00

96-18-41,2,3-Trichloropropane

1.3E-074.0E-03

--4.0E-03

1.5E-043.0E-04

2.0E+004.6E-08

3.0E+01--

3.0E+015.5E-05

NC

7.2E+00

95-63-61,2,4-Trim

ethylbenzene1.3E-07

1.0E-02--

1.0E-029.3E-05

7.0E-037.5E+01

4.6E-08N

C--

NC

3.3E-05N

C--

78-87-51,2-D

ichloropropane 1.3E-07

9.0E-02--

9.0E-023.3E-04

4.0E-031.2E+01

4.6E-083.6E-02

--3.6E-02

1.2E-041.0E-05

8.5E+00

108-67-81,3,5-Trim

ethylbenzene1.3E-07

1.0E-02--

1.0E-029.0E-05

7.0E-037.7E+01

4.6E-08N

C--

NC

3.2E-05N

C--

106-46-71,4-D

ichlorobenzene1.3E-07

7.0E-02--

7. 0E-029.1E-05

8.0E-018.7E+03

4.6E-085.4E-03

--5.4E-03

3.2E-051.1E-05

2.8E+01

71-43-2Benzene

1.3E-074.0E-03

--4.0E-03

4.3E-043.0E-02

6.9E+014.6E-08

1.0E-01--

1.0E-011.5E-04

2.9E-052.2E+00

75-27-4Brom

odichloromethane

1.3E-072.0E-02

--2.0E-02

1.4E-047.0E-02

4.9E+024.6E-08

1.3E-01--

1.3E-015.1E-05

3.7E-055.3E+00

74-83-9Brom

omethane

1.3E-071.4E-03

--1.4E-03

6.4E-045.0E-03

7.8E+004.6E-08

NC

--N

C2.3E-04

NC

--

100-41-4Ethylbenzene

1.3E-071.0E-01

--1.0E-01

2.2E-041.0E+00

4.5E+034.6E-08

1.1E-02--

1.1E-027.8E-05

2.5E-065.1E+01

75-09-2M

ethylene chloride1.3E-07

6.0E-03--

6.0E-034.7E-04

6.0E-011.2E+03

4.6E-081.4E-02

--1.4E-02

1.7E-041.0E-06

5.9E+01

127-18-4Tetrachloroethene

1.3E-076.0E-03

--6.0E-03

4.6E-044.0E-02

8.6E+014.6E-08

5.4E-01--

5.4E-011.7E-04

5.9E-061.0E+01

79-01-6Trichloroethene

1.3E-075.0E-04

--5.0E-04

3.6E-042.0E-03

5.5E+004.6E-08

4.6E-02--

4.6E-021.3E-04

4.1E-061.9E+01

75-01-4Vinyl chloride

1.3E-073.0E-03

--3.0E-03

1.1E-031.0E-01

8.7E+014.6E-08

2.7E-01--

2.7E-014.1E-04

7.8E-053.1E-01

Note: " -- " not applicable

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Geosyntec C

onsultantsPage 1 of 2

SSCG

s_UtilityW

_Oct2013.xls

Former K

ast Property

Carson, C

alifornia

71-55-61,1,1-Trichloroethane

4.0E+046.8E-10

5.0E+007.4E+09

2.4E-10N

C--

79-34-51,1,2,2-Tetrachloroethane

7.0E+033.9E-09

7.0E-021.8E+07

1.4E-095.8E-05

1.2E+05

79-00-51,1,2-Trichloroethane

1.4E+042.0E-09

2.0E-041.0E+05

7.1E-101.6E-05

8.6E+05

75-34-31,1-D

ichloroethane3.9E+04

7.1E-107.0E-01

9.9E+082.5E-10

1.6E-062.5E+07

120-82-11,2,4-Trichlorobenzene

5.4E+035.1E-09

2.0E-033.9E+05

1.8E-09N

C--

95-63-61,2,4-Trim

ethylbenzene9.0E+03

3.0E-097.0E-03

2.3E+061.1E-09

NC

--

107-06-21,2-D

ichloroethane1.7E+04

1.6E-097.0E-03

4.4E+065.7E-10

2.1E-058.5E+05

78-87-51,2-D

ichloropropane 2.5E+04

1.1E-094.0E-03

3.6E+063.9E-10

1.0E-052.5E+06

108-67-81,3,5-Trim

ethylbenzene8.8E+03

3.1E-097.0E-03

2.3E+061.1E-09

NC

--

106-99-01,3-Butadiene

5.0E+045.5E-10

2.0E-033.7E+06

2.0E-101.7E-04

3.0E+05

106-46-71,4-D

ichlorobenzene7.8E+03

3.5E-098.0E-01

2.3E+081.3E-09

1.1E-057.2E+05

123-91-11,4-D

ioxane 1.2E+03

2.3E-083.0E+00

1.3E+088.1E-09

7.7E-061.6E+05

540-84-12,2,4-Trim

ethylpentane1.8E+04

1.5E-091.0E+00

6.5E+085.5E-10

NC

--

591-78-62-H

exanone7.2E+03

3.8E-093.0E-02

7.9E+061.4E-09

NC

--

622-96-84-Ethyltoluene

6.7E+034.1E-09

1.0E-012.5E+07

1.5E-09N

C--

71-43-2Benzene

2.9E+049.5E-10

3.0E-023.2E+07

3.4E-102.9E-05

1.0E+06

75-27-4Brom

odichloromethane

2.8E+049.7E-10

7.0E-027.2E+07

3.5E-103.7E-05

7.8E+05

74-83-9Brom

omethane

5.2E+045.3E-10

5.0E-039.5E+06

1.9E-10N

C--

75-15-0C

arbon disulfide5.6E+04

4.9E-107.0E-01

1.4E+091.7E-10

NC

--

56-23-5C

arbon tetrachloride4.3E+04

6.3E-101.0E-01

1.6E+082.3E-10

4.2E-051.1E+06

67-66-3C

hloroform2.5E+04

1.1E-099.8E-02

9.0E+073.9E-10

5.3E-064.9E+06

74-87-3C

hloromethane

5.1E+045.4E-10

9.0E-021.7E+08

1.9E-10N

C--

110-82-7C

yclohexane 8.2E+04

3.3E-106.0E+00

1.8E+101.2E-10

NC

--

124-48-1D

ibromochlorom

ethane2.3E+04

1.2E-097.0E-02

6.0E+074.2E-10

2.7E-058.8E+05

156-59-2D

ichloroethene, cis-1,2-3.3E+04

8.4E-107.0E-03

8.3E+063.0E-10

NC

--

156-60-5D

ichloroethene, trans-1,2-4.2E+04

6.5E-106.0E-02

9.3E+072.3E-10

NC

--

10061-02-6D

ichloropropene, trans-1,3-6.1E+04

4.5E-102.0E-02

4.4E+071.6E-10

1.6E-053.9E+06

64-17-5Ethanol

1.3E+032.1E-08

4.0E+001.9E+08

7.4E-09N

C--

100-41-4Ethylbenzene

1.7E+041.6E-09

1.0E+006.3E+08

5.7E-102.5E-06

7.0E+06

Soil VaporSSC

Gnc

(µg/m3)

Exposure C

oncentration (EC

SV-OA )

(mg/m

3)

InhalationU

nit Risk

(µg/m3) -1

Exposure C

oncentration (EC

SV-OA )

(mg/m

3)

Attachm

ent A1, Table A

1-6D

erivation of Site-S

pecific Cleanup G

oals, Soil V

aporC

onstruction and Utility M

aintenance Worker

CAS

Num

ber

Chem

icalof

Concern

VFSV-O

A

(µg/m3-µg/m

3)

Noncancer Effects

Cancer Effects

Soil VaporSSC

Gc

(µg/m3)

Reference

Concentration (m

g/m3)

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onsultantsPage 2 of 2

SSCG

s_UtilityW

_Oct2013.xls

Former K

ast Property

Carson, C

alifornia

Soil VaporSSC

Gnc

(µg/m3)

Exposure C

oncentration (EC

SV-OA )

(mg/m

3)

InhalationU

nit Risk

(µg/m3) -1

Exposure C

oncentration (EC

SV-OA )

(mg/m

3)

Attachm

ent A1, Table A

1-6D

erivation of Site-S

pecific Cleanup G

oals, Soil V

aporC

onstruction and Utility M

aintenance Worker

CAS

Num

ber

Chem

icalof

Concern

VFSV-O

A

(µg/m3-µg/m

3)

Noncancer Effects

Cancer Effects

Soil VaporSSC

Gc

(µg/m3)

Reference

Concentration (m

g/m3)

142-82-5H

eptane9.2E+04

3.0E-107.0E-01

2.3E+091.1E-10

NC

--

87-68-3H

exachloro-1,3-butadiene1.7E+03

1.6E-083.5E-03

2.2E+055.7E-09

2.2E-058.0E+04

110-54-3H

exane 6.5E+04

4.2E-107.0E-01

1.7E+091.5E-10

NC

--

67-63-0Isopropanol

2.2E+031.2E-08

7.0E+005.7E+08

4.4E-09N

C--

98-82-8Isopropylbenzene (cum

ene)1.0E+05

2.8E-104.0E-01

1.5E+099.8E-11

NC

--

78-93-3M

ethyl ethyl ketone (2-butanone)6.3E+03

4.3E-095.0E+00

1.1E+091.6E-09

NC

--

75-09-2M

ethylene chloride2.8E+04

9.9E-106.0E-01

6.1E+083.5E-10

1.0E-062.8E+07

1634-04-4M

ethyl-tert-butyl ether1.6E+04

1.7E-093.0E+00

1.8E+095.9E-10

2.6E-076.5E+07

91-20-3N

aphthalene2.1E+03

1.3E-083.0E-03

2.3E+054.6E-09

3.4E-056.3E+04

103-65-1Propylbenzene

1.8E+041.5E-09

1.0E+006.6E+08

5.4E-10N

C--

75-65-0tert-Butyl Alcohol (TBA)

6.7E+034.1E-09

1.1E+002.6E+08

1.5E-09N

C--

127-18-4Tetrachloroethene

3.8E+047.2E-10

4.0E-025.5E+07

2.6E-105.9E-06

6.6E+06

109-99-9Tetrahydrofuran

6.7E+034.1E-09

2.0E+004.9E+08

1.5E-09N

C--

108-88-3Toluene

2.0E+041.4E-09

5.0E+003.7E+09

4.9E-10N

C--

79-01-6Trichloroethene

2.7E+041.0E-09

2.0E-032.0E+06

3.6E-104.1E-06

6.7E+06

75-01-4Vinyl chloride

6.3E+044.3E-10

1.0E-012.3E+08

1.5E-107.8E-05

8.3E+05

108-38-3Xylene, m

-1.6E+04

1.7E-091.0E-01

6.0E+076.0E-10

NC

--

95-47-6Xylene, o-

1.3E+042.1E-09

1.0E-014.8E+07

7.5E-10N

C--

106-42-3Xylene, p-

1.6E+041.7E-09

1.0E-015.9E+07

6.0E-10N

C--

TPH1

Aliphatic: C5-C

84.7E+04

5.8E-107.0E-01

1.2E+092.1E-10

NC

--

2A liphatic: C

9-C18

1. 1E+042.5E-09

3.0E-011.2E+08

9.0E-10N

C--

3A liphatic: C

19-C32

----

NA

----

NC

--

4A rom

atic: C6-C

81. 6E+04

1.8E-09N

A--

6.3E-10N

C--

5Arom

atic: C9-C

163.7E+03

7.4E-095.0E-02

6.7E+062.6E-09

NC

--

6A rom

atic: C17-C

32--

--N

A--

--N

C--

Note: " -- " not applicable or not available

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Calculations of Prelim

inary Rem

ediation Goals (PR

Gs)

U.S. E

PA T

echnical Review

Workgroup for L

ead, Adult L

ead Com

mittee

Version date 6/21/09

Variable

Description of V

ariableU

nitsG

SDi and PbB

o from

Analysis of N

HA

NE

S 1999-2004

PbBfetal, 0.90

90th percentile PbB

in fetus ug/dL

1R

fetal/maternal

Fetal/maternal PbB

ratio --

0.9B

KSF

Biokinetic Slope Factor

ug/dL per ug/day0.4

GSD

iG

eometric standard deviation PbB

--1.8

PbB0

Baseline PbB

ug/dL0.0

IRS

Soil ingestion rate (including soil-derived indoor dust)g/day

0.100A

FS, D

Absorption fraction (sam

e for soil and dust)--

0.12EF

S, DExposure frequency (sam

e for soil and dust)days/yr

12A

TS, D

Averaging tim

e (same for soil and dust)

days/yr90

PRG

mg/kg

818

Attachm

ent A1, Table A

1-7D

erivation of Site-S

pecific Cleanup G

oal, Lead in Soil

Construction and U

tility Maintenance W

orkerForm

er Kast P

ropertyC

arson, California

Geosyntec C

onsultantsP

age 1 of 1S

SC

Gs_U

tilityW_O

ct2013.xls

Page 112: Table Proposed Cleanup Levels Groundwater · 10/21/2013  · Table 04 Summery of PrsllMnery Cost ES11motee for Soleening Feasibility Study Former Kest Property Carson, CA GeotFnlenGOneullanle

SB0484\SSCGs_AppendixA_Oct2013.docx October 2013

ATTACHMENT A2 Background Evaluation

Page 113: Table Proposed Cleanup Levels Groundwater · 10/21/2013  · Table 04 Summery of PrsllMnery Cost ES11motee for Soleening Feasibility Study Former Kest Property Carson, CA GeotFnlenGOneullanle

SB0484\SB0484_SSCG_Appendix A_Attachment A2.docx 1 February 2013

Attachment A2

Detailed Background Evaluation Former Kast Property

Carson, California Introduction

This attachment presents the background evaluation methodology and results used to derive background-based Site-specific cleanup goals (SSCGs) for metals and carcinogenic polyaromatic hydrocarbons (cPAHs) detected in soil at the former Kast Property (Site) located in Carson, California. The evaluation builds upon the preliminary evaluation presented previously (Geosyntec, 2011) and includes samples from locations not anticipated to be affected by the Site and that represent local and regional background.

Purpose

The purpose of this report is to i) identify locally representative background data for metals and cPAHs from locations that are not affected by Site impacts; ii) evaluate the selected background datasets graphically and statistically including outlier analysis to develop a representative background dataset; iii) develop background threshold values for metals and cPAHs for use in background evaluation using local and regulatory approved regional background datasets; and iv) present the methodology that will be used to compare Site datasets with background thresholds to determine if metals or cPAHs are above or below background and should be carried forward for further risk evaluation.

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SB0484_SSCG_Appendix A_Attachment A2.docx 2 February 2013

Approach

Metals may be naturally occurring in the environment. According to the California Department of Toxic Substances (DTSC) (Cal-EPA DTSC 2009a, 2009b, Cal-EPA, 1997) for naturally occurring materials such as metals, an evaluation of background concentrations is important to evaluate whether the metals concentrations on the property are consistent with naturally occurring levels in the area, and whether they should be included in the risk assessment. If concentrations of a metal are within background, the metal is not considered a Chemical of Concern (COC) and is not evaluated further.

In addition to metals, cPAHs can be naturally occurring or present at ambient levels not associated with former site activities. A background dataset and methodology has been developed by DTSC that can be used to evaluate the presence of cPAHs in soil (Cal-EPA DTSC, 2009c).

The background evaluation considered:

1. Offsite background data collected for the project;

2. Data collected from nearby locations that represent local background; and

3. Regulatory approved regional background concentrations for southern California soils.

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SB0484_SSCG_Appendix A_Attachment A2.docx 3 February 2013

The approach that was used to perform the background data evaluation is illustrated in the flow chart below.

Identify Candidate Background Data from State

Databases and Nearby Locations

Evaluate Suitability for Use as Background

Create a Pooled Background Dataset

Outlier Evaluation

• Quantile-Quantile Plots • Box Plots • Rosner Test • Formal Goodness-of-Fit Tests

Derive Background Threshold Value (BTV)

• General Descriptive Statistics • Distributional Fit • 95% Upper Tolerance Limit

Evaluate Appropriateness of

Background Dataset

Perform Background Analysis According to Established Statistical Guidance:

1. Individual point-by-point site data comparison with BTVs

2. One sample proportion test

3. Site data evaluation

Chemical will be included in HHRA if concentrations are above background

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SB0484_SSCG_Appendix A_Attachment A2.docx 4 February 2013

Background Site Selection

The background locations used to create a local background database include:

- Banning Park, - Banning Elementary School, - Wilmington Middle School, and - Wilmington Recreation Center.

These locations were previously identified in the Background Soil Evaluation Work Plan (Geosyntec 2010). The use of background datasets from nearby locations in the vicinity of the Site is consistent with the approaches and methodologies used by DTSC and other agencies to evaluate regional background datasets such as arsenic or cPAHs both for southern and northern California regions (DTSC, 2009a; DTSC, 2009c). The regional datasets show that background values can vary by location. The use of several background datasets is anticipated to capture these variabilities and provide a more representative background value.

Banning Park Banning Park was selected as a potential background location as the site did not appear to have been developed for commercial or industrial use and according to the review of historical aerial photographs from the Los Angeles Regional Water Quality Control Board’s (LARWQCB) Geotracker database (Geotracker); the site was not impacted by nearby historical operations. The park is developed with a museum situated on 20-acres of parkland. The museum was formerly a residence built in 1864. The residence and parkland were acquired by the City of Los Angeles in 1927. A total of 30 soil samples were collected from ten soil borings placed at 0.5, 2 and 5 feet (ft) below ground surface (bgs). The Banning Park background samples were analyzed for metals and cPAHs.

Banning Elementary School and Wilmington Middle School Data previously collected to support site characterization at nearby school locations including Banning Elementary School and Wilmington Middle School were considered for inclusion in the background dataset. At Banning Elementary school, 63 soil samples were collected at depths 0, 0.5, 1 and 5 ft bgs and analyzed for metals; while at Wilmington Middle School five soil samples were collected at 0.5 and 5 ft bgs and analyzed for metals and cPAHs. Wilmington Recreation Center Eight background soil samples were collected at Wilmington Recreation Center as part of the environmental investigations performed for the LAUSD new schools construction program. These data are reported in the PEA for Banning Elementary School. The samples were collected at 0.5 and 2.5 to 3 ft bgs and analyzed for metals.

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Evaluation of Background Datasets Comparison of Background Samples by Depth The background samples were obtained from several depths ranging from 0 to 5 ft bgs. To evaluate whether the samples could be combined into a single dataset, the samples were evaluated for significant difference by depth to determine if shallower samples were statistically different than surface samples. Samples between 0 to 2 ft bgs (surface) and >2 to 5 ft bgs (shallow), and with percent detection above 50%, were statistically compared using the non-parametric Mann-Whitney method at 0.05 significance level. The results show that the majority of metals concentrations (except cadmium, copper, lead and zinc) are not significantly different by depth. The Mann Whitney analysis was not suitable for comparison of equality for cPAHs as B(a)P-equivalents by depth, as samples >2 to 5 ft bgs have more than an 85% frequency of non-detect samples. A two-sample proportions test, applicable for comparing samples with high degree of non-detection, however indicates that cPAHs are statistically different by depth. This may be due to higher near surface ambient concentrations as a result of anthropogenic sources. While there were some differences by depth, datasets were combined to reflect the depth interval of interest for exposure potential and to provide for a larger dataset. The statistical analysis report (Minitab software output) is presented in Attachment A2-1.

Outlier Evaluation Since two of the datasets were from investigations for school sites and were not specifically background sample datasets, an outlier analysis was conducted consistent with DTSC guidance for evaluating background (DTSC, 2009a). The background datasets were screened for suspect or potential outliers using (i) box plots, (ii) Q-Q plots, (iii) probability plots or underlying distributions (Goodness of fit test), (iv) Rosner outlier test, and (v) professional judgment based on established regional background thresholds and historical land use.

Samples higher than the three-interquartile range (3IR) on box plots were identified as suspect outliers and were further evaluated using the formal outlier test (Rosner test). Suspect outliers were also evaluated using Q-Q plots and goodness-of-fit tests on detected datasets. The Q-Q probability plots for the best fit distribution for each metal and cPAH (as benzo(a)pyrene equivalent) were examined for the presence of inflections and break-points, which could be used to identify multiple populations or outlier concentrations. A probability-plot (i.e., normal, lognormal, or gamma) partitioning was used to identify outliers as well as other patterns in the data that could signify the presence of multiple statistical populations. A weight of evidence approach based on the results of all the above methodologies was considered when determining whether a suspect outlier was eliminated or included in the background dataset. Suspect outliers that were persistently identified in all of these methods were further evaluated with respect to

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sample location, depth or correlation to known contaminated locations or other pertinent evidence. Outlier evaluation of each chemical, as part of a background metals evaluation is provided in Attachment A2-1.

Development of a Background Threshold Value

Background Threshold Values (BTVs) are single-point background thresholds that represent an upper plausible limit of the background distributions of individual compounds (EPA 2009a, 2009b; Helsel 2005). Threshold limits are most often based on an upper percentile of the background distribution (such as 90th, 95th, or 99th percentile), an upper confidence limit of an upper percentile (that is, an upper tolerance limit or UTL). Consistent with Cal-EPA guidance (Cal-EPA DTSC 2009a), the UTL was derived. Following EPA’s guidance, a minimum of 8 to 10 or more samples are required to estimate BTVs. When detected observations are less than 4 to 6, the maximum detected sample could be used to estimate the BTV. When all the background samples are non-detects, the BTV will also be a non-detect. The smaller of the sample maximum and calculated BTV were used as the chemical BTV. Development of the BTV for each chemical is presented in Attachment A2-1.

Background Thresholds from State Regulatory Datasets In addition to the BTVs derived from the data discussed above, well established regulatory approved regional background thresholds for arsenic and cPAHs in soil were considered. These thresholds have been used for many sites within the Los Angeles Area to identify chemicals of potential concern for risk assessments as well as used as remedial goals for site cleanups for unrestricted or residential land use. For arsenic, the DTSC background concentration for southern California sites of 12 mg/kg (Cal-EPA DTSC, 2007) will be used. In addition to metals, PAHs can be naturally occurring or present at ambient levels not associated with former site activities. A background dataset and methodology has been developed that can be used to evaluate the presence of PAHs in soil (Cal-EPA DTSC, 2009c). Consistent with agency-approved risk assessment practice in California, the DTSC-developed background concentration of 0.9 mg/kg benzo(a)pyrene equivalents (Bap-eq) will be used to evaluate cPAHs results. These values will be used as the BTVs for the Site.

Comparison of Site and Background Datasets Due to the preponderance of Site data (over 10,000 samples and 285 individual study areas), a streamlined approach was developed to evaluate background at the Site. In the first step, Site samples will be compared to the BTVs to evaluate whether onsite metal or cPAH concentrations are above or below background concentrations. In the second step, for those areas where samples are above the BTV, a proportion test will be conducted to further evaluate whether

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observed concentrations are above background. If onsite concentrations are below background, the area will not be evaluated further in the risk assessment process. The background comparison will be conducted as part of the full Human Health Risk Assessment (HHRA) that will be conducted once the Phase II Site Characterization work is complete. It is anticipated that the HHRA will be included in the Remedial Action Plan (RAP).

As mentioned above, the approach used to compare Site datasets against background thresholds includes:

- Point by point comparison of Site datasets and BTV; - One-sample hypothesis testing (Proportion test); and - Site data evaluation

Point-by-Point Comparison

The point-by-point comparison method will initially be used as a conservative screen to identify chemicals that may be present at concentrations above background. If a chemical is found to be above background, the proportion test will be used to further evaluate the data.

One-sample proportion test

For chemicals that are present at concentrations above the BTV, a one-sample proportion test will be used to compare the Site data with the BTVs. This is consistent with agency guidance that states that when BTVs and cleanup standards are known, one-sample hypotheses are used to compare site data with the known and pre-established threshold values (USEPA, 2010). The one-sample proportion test is a test for proportion and will be used to compare the proportion of Site data exceeding the BTV with a pre-specified allowable proportion of exceedance (5%). The proportion test is non-parametric and therefore can be used with censored datasets in which there is a large proportion on non-detect values. The proportion test is used to detect a significant difference or a shift in the upper tail of the site data distribution. A significant shift in the upper tail of the site dataset as compared to background may indicate that the site has been impacted for that particular chemical. A 5% level of significance (p < 0.05) will be used to evaluate all tests.

Site Data Evaluation

A more detailed analysis may be conducted to further evaluate if chemicals are present at the Site above background, especially for chemicals that do not have local or regional background datasets or were nondetect in the background datasets. Methods described in Cal-EPA guidance Selecting Inorganic Constituents as Chemicals of Potential Concern at Risk Assessments at Hazardous Waste Sites and Permitted Facilities (Cal-EPA, 1997) describe ways that the Site

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data can be evaluated to determine if observed concentrations are consistent with background. Natural metals distributions are widely observed to be normal or to have a low to moderate skewness that is well approximated by a lognormal distribution (Cal-EPA 1997). Cal-EPA also states that samples from such distributions generally range by no more than one order of magnitude and that the sample coefficients of variation (CV, standard deviation/mean) are also no greater than one. Substantial departures from these traits, referred to here as natural population indicators, will be used to indicate the presence of multiple populations in the sample, which may indicate the presence of chemical concentrations above background. As a part of the evaluation, visual observation of the data will be conducted using probability plots to determine if multiple populations are present.

If the concentrations of a chemical are found to be above background after these three steps the chemical will be included in the HHRA.

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References

Cal-EPA DTSC, 1997. Selecting Inorganic Constituents as Chemicals of Potential Concern at Risk Assessments at Hazardous Waste Sites and Permitted Facilities. Human and Ecological Risk Division. February 1997.

Cal-EPA DTSC, 2009a. Arsenic Strategies, Determination of Arsenic Remediation, Development of Arsenic Cleanup Goals. January 16, 2009.

Cal-EPA DTSC, 2009b. Interim Guidance Evaluating Human Health Risks from Total Petroleum Hydrocarbons (TPH). June 16, 2009. Human and Ecological Risk Division.

Cal-EPA DTSC, 2009c. Use of the Northern and Southern California Polynuclear Aromatic Hydrocarbon (PAH) Studies in the Manufactured Gas Plant Site Cleanup Process. Draft. May 8, 2009.

Geosyntec Consultants, 2010. Background Soil Evaluation Work Plan. Former Kast Property Carson, California. April , 2010.

Geosyntec Consultants, 2011. Preliminary Draft Background Evaluation for Metals and PAHs in Soil Former Kast Property Carson, California. September 15, 2011.

Gilbert, R.O. 1987. Statistical Methods for Environmental Pollution Monitoring. John Wiley & Sons, Inc. New York, New York.

Gilbert, RO, JR Davidson, JE Wilson, BA Pulsipher. 2001. Visual Sample Plan (VSP) models and code verification. PNNL-13450, Pacific Northwest National Laboratory, Richland, Washington.

Helsel, D. 2005. Nondetects and Data Analysis: Statistics for Censored Environmental Data. John Wiley & Sons, Inc. New York, New York. 250 p.

Johnson, R.A., S. Verrill, and D.H. Moore II. 1987. “Two-Sample Rank Tests for Detecting Changes that Occur in a Small Proportion of the Treated Population.” Biometrics. Volume 43. Pages 641 through 655.

USEPA, 1989. Risk Assessment Guidance for Superfund, Volume I, Human Health Evaluation Manual (Part A). Office of Emergency and Remedial Response. EPA/540/1-89/002. December 1989.

USEPA. 2002. “Guidance for Comparing Background and Chemical Concentrations in Soil for CERCLA Sites.” Office of Emergency and Remedial Response, Washington, DC. EPA 540-R-01-003. September.

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USEPA. 2010. “ProUCL Version 4.1 Technical Guide (Draft).” Singh, A., R. Maichle, A.K. Singh, S.E. Lee, and N. Armbya. Office of Research and Development, National Exposure Research Laboratory. EPA/600/R-07/041. May.

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Attachment A2-1 Detailed Background Evaluation

1. Background Metals Data Evaluation

The summary statistics of the metals and cPAH background databases are provided in Table A2-1. Background Threshold Values (BTVs) are presented in Tables A2-2 and A2-3. Box plots and probability plots of the background datasets are provided in Figures A2-1 through A2-3. Box plots based on three times the interquartile range (3IR), Q-Q plots and probability plots for outlier evaluation are shown on Figures A2-4-1 through A2-4-18. ProUCL output of the Rosner outlier test is provided in Attachment A2-1. Goodness of fit test of background samples before and after elimination of suspect outliers is shown in Attachment A2-1. Summary of the background threshold values (BTV) after elimination of suspect outliers is provided in Table A2-2. ProUCL output of the upper threshold analysis is shown in Attachment A2-1. Antimony (N=106, ND=99.06%) Antimony has 106 samples all obtained from 0 to 5 ft bgs. There is only one detected sample at 0.74 mg/kg (99% non-detection). Since the %ND is significantly large, there is no reliable statistical analysis that can be performed on antimony. No samples were eliminated as outliers. The detection levels were 0.306 and 0.5 mg/kg. The detected sample was obtained from Banning Park at 0.5 ft bgs. Due to large %ND, no reliable 95% UTL can be estimated. The maximum value of 0.741 mg/kg is used as BTV for antimony. Arsenic (N=106, ND=2.83%)

Outlier evaluation based on above 3IR box plot indicates that arsenic has three suspect outliers including 9, 11.9 and 127, while a test for one Rosner outlier at 1% significance level indicates that 127 may be a potential outlier. Graphic evaluation using a Q-Q plot indicates that the arsenic sample with a concentration of 127 mg/kg may be a suspect outlier. A goodness of fit test was performed, and arsenic does not fit normal or lognormal distribution. The GOF test however shows that the arsenic sample concentration of 127 mg/kg is considerably offset from the general linear trend indicating that the sample may be an outlier. The sample was obtained from the surface (at 0 ft bgs) at the Wilmington School, and may not represent background distribution. Moreover, the value is significantly above the Southern California arsenic background threshold of 12 mg/kg and above the background range reported of 2.2 mg/kg to 19 mg/kg reported in the regional study conducted by UC Riverside (1991) and the range of 0.15 mg/kg to 19.63 mg/kg that was observed in the Southern California background dataset presented by DTSC in its

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Arsenic Strategies Document (DTSC, 2009a). The sample 127 mg/kg therefore was eliminated as an outlier. After elimination of the outlier, detected arsenic follow an approximate gamma distribution, and therefore a Gamma distribution based UTL was selected from the ProUCL results to estimate the 95% UTL at 10.4 mg/kg. The local threshold BTV, 10.41 mg/kg, is less than the well-established Southern California arsenic BTV of 12 mg/kg developed by DTSC. The maximum value in the local background dataset is 11.9, close to the value of 12 mg/kg. The Southern California background arsenic dataset is made up of a much larger database across several areas within the Los Angeles basin and as a result anticipated to be more representative of background within the Los Angeles area. In addition, this value has been commonly used for COC selection and as a cleanup level for unrestricted land use and residential sites. Therefore, the DTSC arsenic threshold value of 12 mg/kg is used as the BTV in this report. Barium (N=106, ND=0%) Barium has four suspect outliers including concentrations of 203, 267, 428 and 575 mg/kg based on above 3IR box plot evaluation. A test for one Rosner outlier at 1% significance level indicates that 575 may be a potential outlier while a graphic evaluation using a Q-Q plot indicates that 267, 428 and 575 may be potential outliers. A GOF test was performed and barium data does not fit normal nor lognormal distribution. The test based on lognormal distribution however shows that barium samples 428 and 575 mg/kg may be considered as deviating from the general linear trend indicating that they may be outliers. The weight of evidence presented suggests that 428 and 575 mg/kg may be outliers, and were removed from the background evaluation. After elimination of the two suspect outliers, barium appears to fit lognormal distribution. Based on lognormal distribution after elimination of suspect outliers (N=105, %ND = 0%), the 95% UTL was 195.4 mg/kg. Beryllium (N=106, ND=16.98%) With 106 samples and 17% non-detection, 3IR based box plot indicates that concentrations of 0.6, 0.7, 0.7 and 0.8 may be suspect outliers while a one outlier Rosner test shows that 0.8 may be an outlier. Graphic evaluation using a Q-Q plot does not show an obvious or significant outlier. A GOF test shows that beryllium does not fit normal or lognormal distributions. There is however a general linear trend based on a lognormal distribution particularly among the detected datasets. In addition, these concentrations fall within the range of background concentrations of 0.1 to 0.9 mg/kg reported in the regional study conducted by UC Riverside (1991). There is no strong evidence to suggest that these are outliers, and therefore no beryllium samples are eliminated as outliers.

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Since Beryllium samples do not fit a normal or lognormal distribution, a non-parametric 95% KM UTL with 99% coverage of 0.56 mg/kg was selected as the BTV for the background dataset. Cadmium (N=106, ND=53.77%) Based on above 3IR samples on a box plot, seven cadmium samples from 1.0 to 3.81 mg/kg are suspect outliers. A test for one Rosner outlier at 1% significance level indicates 3.81 as a potential outlier while a graphic evaluation using a Q-Q plot apparently shows two populations as indicated by the shift from linearity which may imply that the upper tail of the distribution may be impacted. However it has to be noted that cadmium has more than 50% non-detects that constitutes the lower tail of the population distribution while the detected samples make the upper distribution. So the Q-Q plot departure from linearity is more of a distinction between detected and non-detected samples rather than discrimination between background and impacted samples. The three highest suspect outliers 1.63, 1.8 and 3.81 mg/kg are obtained from Banning Park at 0.5 ft bgs. A GOF test on the detected samples indicates cadmium fits a lognormal distribution. Using the above weight of evidence, no cadmium sample was eliminated as an outlier. A value of 3.81 mg/kg is selected as a BTV using a 95% Bootstrap (%) UTL with 99% coverage ProUCL output. Chromium (N=106, ND=0%) Chromium has three suspect outliers including 29.3, 36.5 and 38.6 mg/kg based on above 3IR box plot evaluation. A test for one Rosner outlier at 1% significance level indicates that 38.6 may be a potential outlier while a graphic evaluation using a Q-Q plot does not indicate a significant outlier. A GOF test was performed and indicates the data fit a lognormal distribution indicating there may be no outlier chromium samples. The samples 29.3, 36.5 were obtained from Banning Elementary School (at 0.5 ft bgs), while sample 38.6 was obtained from Wilmington Recreation Center (at 0.5 ft bgs). Based on the weight of evidence presented, no dataset was eliminated from chromium samples as outlier. Since chromium is log-normally distributed, a 95% UTL of 32.54 mg/kg is selected from PROUCL output. Cobalt (N=106, ND=3.77%) Cobalt has three suspect outliers including 13.1, 13.5 and 15.7 mg/kg based on above 3IR box plot evaluation. A test for one Rosner outlier at 1% significance level indicates that 15.7 may be a potential outlier. A GOF test indicates that Cobalt samples are log-normally distributed. Though the Box plot and Rosner test indicate three suspect outliers (13.1, 13.5, 15.7), the GOF test and Q-Q plot did not show a significant break of these datasets from the body of samples. The suspect outliers 13.1, 13.5 and 15.7 were obtained from Banning Elementary School at 0.5 ft, 5 ft and 1 ft bgs respectively. Based on the above weight of evidence, no samples were eliminated as outlier.

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A non-parametric based 95% KM UTL with 99% coverage at 10.91 mg/kg will be used as the sample BTV. Copper (N=106, ND=0%) Copper has one suspect outlier at 59 mg/kg based on above 3IR box plot evaluation. A test for one Rosner outlier at 1% significance level indicates that the sample 59 mg/kg may be a potential outlier while a graphic evaluation using a Q-Q plot does not indicate a significant outlier. A GOF test was performed and indicates copper fit a fairly strong lognormal distribution showing there may be no outliers. The sample 59 mg/kg was obtained from Banning Park (at 0.5 ft bgs). Based on the weight of evidence presented, no copper dataset was eliminated as outlier. Based on lognormal distribution, a threshold value of 95% UTL is 64.62. However, since this value is higher than sample max at 59, the BTV will be taken as 59 mg/kg. Lead (N=106, ND=5.66%) Based on above 3IR samples on a box plot, twelve (12) lead samples from 43.3 to 112 mg/kg are suspect outliers. A test for one Rosner outlier at 1% significance level indicates 112 as a potential outlier while a graphic evaluation using a Q-Q plot apparently shows two populations which is partly a reflection of lead distribution by depth. A GOF test on the detected samples indicates lead does not follow a normal or lognormal distribution. The linear pattern of the probability plot using lognormal distribution at different depths (0 to 0.5 ft, and >0. 5 ft bgs) however indicates that lead may not have an outlier. Moreover, lead has been detected at background level concentrations ranging from 7.7 to 189.4 mg/kg in Southern California region. Using the above weight of evidence, no lead sample was eliminated as an outlier. Since lead samples do not follow a discernible distribution, a non-parametric 95% KM UTL with 99% coverage BTV at 61.46 mg/kg is selected from PROUCL output. Mercury (N=106, ND=71.7%) Mercury has a large proportion of non-detects (ND=71.7%), and therefore outlier evaluation is performed using the detected datasets only. There is one suspect outlier (0.324) based on above 3IR box plot and one Rosner outlier test at 1% significance. The Q-Q plot however did not appear to indicate a significant departure or break of this sample from the body of the samples. A GOF tests shows that detected mercury samples do not follow a normal or lognormal distribution, though the shift from linearity was small. The suspect outlier was obtained from Banning Park at 0.5 ft bgs. Based on the above weight of evidence, no sample was eliminated as an outlier. Since mercury does not follow a discernible distribution, a non-parametric BTV of 0.131 mg/kg based on 95% KM UTL with 99% coverage is selected from PROUCL output.

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Molybdenum (N=106, ND=84.91%) Molybdenum has a large proportion of non-detects (ND=84.9%), and therefore outlier evaluation is performed using the detected datasets only. There is no suspect outlier based on above 3IR box plot evaluation. The Rosner outlier test at 1% significance indicates no outlier either. The Q-Q plot indicates a slight departure from linearity. A GOF tests shows that detected molybdenum samples do not follow a normal or lognormal distribution, though the shift from linearity was not significant. Based on the above weight of evidence, no sample was eliminated as an outlier. Since molybdenum does not follow a discernible distribution, a non-parametric BTV of 0.409 mg/kg based on 95% KM UTL with 99% coverageis selected from PROUCL output. Nickel (N=106, ND=10.38%) Based on above 3IR samples on a box plot, two nickel samples 25.3 and 27.2 mg/kg are suspect outliers. A test for one Rosner outlier at 1% significance level indicates 27.2 as a potential outlier while a graphic evaluation using a Q-Q plot apparently shows no suspect outlier. A GOF test indicates nickel fits a lognormal distribution. Both suspect outliers (25.3 and 27.2) were obtained from Banning Elementary School at 5 and 1 ft bgs respectively. Using the above weight of evidence, no samples were eliminated as outliers. A BTV of 20.17 mg/kg based on a non-parametric approach of 95% KM UTL with 99% Coverage is selected from PROUCL output. Selenium (N=106, ND=99.06%) Selenium has 106 samples all obtained from 0 to 5 ft bgs. There is only one detected sample at 0.78 mg/kg (99% non-detection). No reliable statistics can be performed on Selenium as the %ND is significantly large. No samples were eliminated as outliers. Due to large %ND, no reliable 95% UTL can be estimated. The maximum value of 0.78 mg/kg is used as BTV for selenium. Silver (N=106, ND=91.51%) Silver has 91.5% non-detects. Statistical evaluation was performed only on detected samples (9 samples). The outlier tests show no indication of suspect outliers, and therefore no sample was eliminated. Silver data appear log-normally distributed. Since the corresponding potential BTV (6.87) was greater than the sample max of 1.29, the BTV selected was 1.29 mg/kg. Thallium (N=106, ND=100%) All 106 thallium data were non-detects. No statistical analysis was performed on thallium. At 100% non-detection, the BTV of thallium was also a non-detect and assessed at 0.23 mg/kg.

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Vanadium (N=106, ND=0%) Vanadium has no suspect outlier based on above 3IR box plot evaluation. A test for one Rosner outlier at 1% significance level indicates no suspect outlier either. The Q-Q plot shows a fairly linear trend indicating no potential outlier. A GOF test shows that vanadium follows a strong lognormal distribution. Based on the above weight of evidence, no suspect outliers were identified for vanadium. Based on lognormal distribution, BTV at 95% UTL is 50.07 mg/kg. However, since this value is higher than sample maximum (47.01), BTV was assessed at 47.01 mg/kg. Zinc(N=106, ND=0%) Zinc has four suspect outliers including 151, 172, 291and 525 mg/kg based on above 3IR box plot evaluation. A test for one Rosner outlier at 1% significance level indicates that 525 may be a potential outlier while a graphic evaluation using a Q-Q plot also indicates that 525 may be a potential outlier. A GOF test was performed and zinc data does not fit normal nor lognormal distributions though the deviation of the probability plot from linear trend is only slight. The sample 525 was obtained from Wilmington Recreation Center at 0 ft bgs. The weight of evidence presented suggests that 525 mg/kg may be an outlier and was eliminated from further background evaluation. Zinc samples did not follow a discernible distribution even after the elimination of the outlier. Therefore a non-parametric 95% Percentile Bootstrap UTL BTV of 291 mg/kg was used from ProUCL output.

2. Background cPAH Evaluation

cPAH (N=35, ND=37.14%) cPAH samples were obtained from Banning Park (N=30) and Wilmington Middle School (N= 5). Using a weight-of-evidence of above 3IR based box plot evaluation and Rosner test, the value of 0.179 mg/kg appears to be a suspect outlier. The Q-Q plot and GOF test suggests that the concentration of 0.179 mg/kg may be an outlier. The sample was collected at 0.5 feet bgs at Wilmington Middle School. A review of the sample data indicate that low levels of total petroleum hydrocarbons (< 60 mg/kg) were detected which may have contributed to the cPAH concentrations. However, since the value of 0.179 mg/kg is well within the range of background reported for Southern California (Cal-EPA, 2009c), and the concentrations of TPH are considered negligible (<60 mg/kg) and not from a known onsite source, the sample was included in the analysis as what may be represented in the soils from anthropogenic non site-related sources. To further evaluate background cPAH, these local background datasets were evaluated against the backdrop of 22 background sites in Southern California (N=185) used in developing the regional cPAH BTV (Cal-EPA DTSC, 2009c). Side by side graphical evaluation including box

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SB0484_SSCG_Appendix A_Attachment A2.docx 17 February 2013

plots and probability plots were used to compare local and Southern California representative datasets (Figure A2-5). The evaluation indicates that, Banning Park and Wilmington Middle School datasets are in the low end/tail distribution of Southern California Background datasets. The Southern California analysis used a much larger pool of background sites, and a relatively larger number of samples. As a result, the Southern California evaluation is anticipated to be more robust and more representative of the true background condition of the region. The local background dataset is consistent with a selection of subsamples from the broader regional dataset where some samples are expected to be higher and some lower than the regional mean. Moreover, the Southern California statistical analysis benefits from a higher statistical power due to higher number of samples than Banning Park and WMS background samples collected as part of a site investigation. Therefore, considering the above and the common use of the regional dataset for remedial decision making at sites, the cPAH BTV of 0.9 mg/kg, derived from the southern California cPAH background analysis is selected at the cPAH BTV for use at the Site. This value has been used as a remedial goal at unrestricted land use and residential sites throughout southern California. The BTV of 0.9 mg/kg will be used along with the comparison methodology outlined in the main document to determine if Site concentrations are above background. Additional evaluation as discussed in guidance (Cal-EPA, 2009c) may be conducted if warranted

Page 130: Table Proposed Cleanup Levels Groundwater · 10/21/2013  · Table 04 Summery of PrsllMnery Cost ES11motee for Soleening Feasibility Study Former Kest Property Carson, CA GeotFnlenGOneullanle

SB0484_SSCG_Appendix A_Attachment A2.docx February 2013

Tables

Page 131: Table Proposed Cleanup Levels Groundwater · 10/21/2013  · Table 04 Summery of PrsllMnery Cost ES11motee for Soleening Feasibility Study Former Kest Property Carson, CA GeotFnlenGOneullanle

1 of 2

Site IDAnalyte

VariableD

epth (ft bgs)

# of Samples

% N

Ds

Minim

um1

Maxim

um1

Mean

1M

edian1

SD1

CV

1

cPA

HB

aP-TE

Q

0.5 - 530

30%0.00106

0.01830.0042

0.00260.0048

1.1310

Antim

ony0.5 - 5

3096.67%

0.7410.741

0.7410.741

----

Arsenic

0.5 - 530

0%1.11

11.92.35

1.691.97

0.84

Barium

0.5 - 530

0%38.3

26773.83

71.5039.08

0.53

Beryllium

0.5 - 5

300%

0.180.30

0.230.22

0.030.13

Cadm

ium0.5 - 5

3043.33%

0.113.81

0.830.61

0.931.12

Chrom

ium

0.5 - 530

0%6.76

28.211.64

9.604.55

0.39

Cobalt

0.5 - 530

0%3.66

6.534.77

4.720.54

0.11

Copper

0.5 - 530

0%2.69

5910.77

6.5711.09

1.03

Lead 0.5 - 5

300%

2.368.1

13.406.46

17.071.27

Mercury

0.5 - 530

0%0.02

0.320.05

0.030.06

1.22

Molybdenum

0.5 - 5

3050%

0.100.40

0.160.14

0.070.46

Nickel

0.5 - 530

0%3.68

20.86.6

5.73.0

0.5

Selenium

0.5 - 530

100% --

-- --

-- --

--

Silver

0.5 - 530

70%0.132

1.290.58

0.290.47

0.81

Thallium0.5 - 5

30100%

-- --

-- --

-- --

Vanadium

0.5 - 530

0%12.6

22.816.28

16.251.92

0.12

Zinc 0.5 - 5

300%

11.586.3

29.0318.95

19.950.69

Antim

ony0 - 5

63100%

-- --

-- --

-- --

Arsenic

0 - 563

4.76%0.4

91.91

1.71.27

0.67

Barium

0 - 563

0%17.7

57569.04

47.886.41

1.25

Beryllium

0 - 5

6325.4%

0.20.8

0.3060.3

0.150.48

Cadm

ium0 - 5

6361.9%

0.20.7

0.3750.35

0.150.39

Chrom

ium

0 - 563

0%4.4

36.511.24

10.65.95

0.53

Cobalt

0 - 563

6.35%2.5

15.75.52

52.70

0.49

Copper

0 - 563

0%3.5

44.115.51

14.18.99

0.58

Lead 0 - 5

636.35%

2.6112

13.066

18.571.42

Mercury

0 - 563

100% --

-- --

-- --

--

Molybdenum

0 - 5

63100%

-- --

-- --

-- --

Nickel

0 - 563

17.46%3

27.28.92

7.355.46

0.61

Selenium

0 - 563

100% --

-- --

-- --

--

Silver

0 - 563

100% --

-- --

-- --

--

Thallium0 - 5

63100%

-- --

-- --

-- --

Vanadium

0 - 563

0%6.2

47.120.07

19.79.58

0.48

Zinc 0 - 5

630%

9.7291

44.9330.6

44.020.98

Banning P

ark

Banning E

lementary S

chool

Metals

Table A2-1 Sum

mary Statistics of B

ackground Metals and cPAH

s Form

er Kast Property

Carson, C

alifornia

Metals

Page 132: Table Proposed Cleanup Levels Groundwater · 10/21/2013  · Table 04 Summery of PrsllMnery Cost ES11motee for Soleening Feasibility Study Former Kest Property Carson, CA GeotFnlenGOneullanle

2 of 2

Site IDAnalyte

VariableD

epth (ft bgs)

# of Samples

% N

Ds

Minim

um1

Maxim

um1

Mean

1M

edian1

SD1

CV

1

Table A2-1 Sum

mary Statistics of B

ackground Metals and cPAH

s Form

er Kast Property

Carson, C

alifornia

cPA

HB

aP-TE

Q

0.5 - 55

80%0.179

0.1790.179

0.179 --

--

Antim

ony0.5 - 5

5100%

-- --

-- --

-- --

Arsenic

0.5 - 55

0%1.52

12727.86

3.4155.43

1.99

Barium

0.5 - 55

0%66.30

92.275.42

7210.2

0.14

Beryllium

0.5 - 5

520%

0.300.48

0.370.34

0.080.22

Cadm

ium0.5 - 5

5100%

-- --

-- --

-- --

Chrom

ium

0.5 - 55

0%9.04

17.412.6

133.5

0.28

Cobalt

0.5 - 55

0%5.18

6.926.33

6.570.7

0.11

Copper

0.5 - 55

0%5.34

14.709.21

7.074.06

0.44

Lead 0.5 - 5

50%

3.4857.50

14.964.11

23.81.59

Mercury

0.5 - 55

100% --

-- --

-- --

--

Molybdenum

0.5 - 5

580%

0.6250.625

0.6250.625

-- --

Nickel

0.5 - 55

0%6.19

12.008.22

7.152.44

0.30

Selenium

0.5 - 55

80%0.78

0.780.78

0.78 --

--

Silver

0.5 - 55

100% --

-- --

-- --

--

Thallium0.5 - 5

5100%

-- --

-- --

-- --

Vanadium

0.5 - 55

0%15.8

29.122.9

244.8

0.2

Zinc 0.5 - 5

50%

20.1151

52.227.8

55.61.1

Antim

ony0 - 2.5

8100%

-- --

-- --

-- --

Arsenic

0 - 2.58

0%0.3

2.11.35

1.350.64

0.47

Barium

0 - 2.58

0%31.9

9158.24

56.0016.58

0.29

Beryllium

0 - 2.5

812.5%

0.20.3

0.230.20

0.050.21

Cadm

ium0 - 2.5

80%

0.21.0

0.490.30

0.360.73

Chrom

ium

0 - 2.58

0%6.2

38.613.34

10.0510.40

0.78

Cobalt

0 - 2.58

0%2.5

5.63.96

3.901.02

0.26

Copper

0 - 2.58

0%6.9

32.516.41

15.207.89

0.48

Lead 0 - 2.5

825%

3.357.0

20.55.8

24.91.22

Mercury

0 - 2.58

100% --

-- --

-- --

--

Molybdenum

0 - 2.5

8100%

-- --

-- --

-- --

Nickel

0 - 2.58

0%4.10

16.409.50

8.854.46

0.47

Selenium

0 - 2.58

100% --

-- --

-- --

--

Silver

0 - 2.58

100% --

-- --

-- --

--

Thallium0 - 2.5

8100%

-- --

-- --

-- --

Vanadium

0 - 2.58

0%10.50

28.8018.19

17.805.72

0.32

Zinc 0 - 2.5

80%

29.80525.00

122.5041.20

169.501.38

Notes:

1Sum

mary statistics based on detected sam

ples- S

umm

ary statistics shown before outlier analysis

Metals

Metals

Wilim

ington Middle S

chool

Wilm

ington Recreation C

enter

Page 133: Table Proposed Cleanup Levels Groundwater · 10/21/2013  · Table 04 Summery of PrsllMnery Cost ES11motee for Soleening Feasibility Study Former Kest Property Carson, CA GeotFnlenGOneullanle

1 of 1

Analyte%

ND

s3IR

Rosner Test

Q-Q

PlotG

OF Test

Suspect Outlier

Sample Location

Sample D

epth (ft, bgs)

WO

E Outlier

Antimony

99.06%N

AN

AN

AN

A0.741

Banning Park0.5

None

Arsenic2.86%

>9127

127N

o Discernible D

istribution127

Willm

ington School0

127

Barium0.00%

>203575

>267N

o Discernible D

istribution>428

Banning Elementary School

0 and 0.5428 and 525

Beryllium16.98%

>0.60.8

None

No D

iscernible Distribution, close to LN

0.7 and 0.8Banning Elem

entary School0.5, 1 and 5

None

Cadm

ium53.77%

>13.81

3.81Lognorm

al1.63, 1.8 and 3.81

Banning Park0.5

None

Chrom

ium0.00%

>29.338.6

None

Lognormal

29.3, 36.5Banning Elem

entary School0.5

None

Cobalt

3.77%>13.1

15.7N

oneLognorm

al13.1, 13.5 and 15.7

Banning Elementary School

0.5, 5 and 1N

one

Copper

0.00%59

59N

oneLognorm

al or Gam

ma

59Banning Park

0.5N

one

Lead5.66%

>43.3112

112N

o Discernible D

istributionN

oneN

AN

AN

one

Mercury

71.70%0.324

None

None

No D

iscernible Distribution, close to LN

0.324Banning Park

0.5N

one

Molybdenum

84.91%N

oneN

oneN

oneN

o Discernible D

istribution, close to LNN

oneN

AN

AN

one

Nickel

10.38%>25.3

27.2N

oneLognorm

al25.3 and 27.2

Banning Elementary School

5 and 1N

one

Selenium99.06%

NA

NA

NA

NA

NA

NA

NA

None

Silver91.51%

NA

NA

NA

NA

NA

NA

NA

None

Thallium100.00%

NA

NA

NA

NA

NA

NA

NA

None

Vanadium0.00%

None

None

None

Lognormal

None

NA

NA

None

Zinc0.00%

>151525

525N

o Discernible D

istribution, close to LN525

Willm

ington Reacreation C

enter0

525

BaP TEQ37.14%

0.1790.179

0.179N

o Discernible D

istribution0.179

Wilim

ington Middle School

0.5N

one

Notes:

NA - N

ot applicable

3IR - Three Interquartile R

ange

WO

E - Weight of Evidence

GO

F - Goodness of fit test

LN - Lognorm

al

Table A2-2Sum

mary O

utlier Evaliuation based on Weight of Evidence Approach for M

etals and cPAHs

Former K

ast PropertyC

arson, California

Page 134: Table Proposed Cleanup Levels Groundwater · 10/21/2013  · Table 04 Summery of PrsllMnery Cost ES11motee for Soleening Feasibility Study Former Kest Property Carson, CA GeotFnlenGOneullanle

1 of 1

Analyte

# Samples

% N

Ds

Maxim

um95%

-tile 99% U

TLB

TVSoC

al BTV

Selected BTV

Antim

ony106

99.06%0.741

0.740.74

--0.74

Arsenic

1052.86%

11.910.41

10.4112

12

Barium

1040.00%

267267.00

267.00--

267.00

Beryllium

10616.98%

0.80.562

0.56--

0.56

Cadm

ium106

53.77%3.81

3.813.81

--3.81

Chrom

ium106

0.00%38.6

32.5432.54

--32.54

Cobalt

1063.77%

15.710.91

10.91--

10.91

Copper

1060.00%

5964.62

59.00--

59.00

Lead106

5.66%112

61.4661.46

--61.46

Mercury

10671.70%

0.3240.13

0.13--

0.13

Molybdenum

10684.91%

0.6250.41

0.41--

0.41

Nickel

10610.38%

27.220.17

20.17--

20.17

Selenium

10699.06%

0.780.78

0.78--

0.78

Silver

10691.51%

1.292.32

1.29--

1.29

Thallium106

100.00% N

/A

0.230.23

--0.23

Vanadium

1060.00%

47.145.66

45.66--

45.66

Zinc105

0.00%291

291.00291.00

--291.00

BaP

TEQ

3537.14%

0.1790.10

0.100.9

0.9

Notes:

Values show

n are based on background datasets after elimination of outliers

ND

: Non detects

UTL: U

pper Tolerance Limit

BTV

: Background Threshold V

alue

Table A2-3

Summ

ary Background Threshold Values of M

etals and cPAH

s Form

er Kast Property

Carson, C

alifornia

Page 135: Table Proposed Cleanup Levels Groundwater · 10/21/2013  · Table 04 Summery of PrsllMnery Cost ES11motee for Soleening Feasibility Study Former Kest Property Carson, CA GeotFnlenGOneullanle

SB0484_SSCG_Appendix A_Attachment A2.docx February 2013

Figures

Page 136: Table Proposed Cleanup Levels Groundwater · 10/21/2013  · Table 04 Summery of PrsllMnery Cost ES11motee for Soleening Feasibility Study Former Kest Property Carson, CA GeotFnlenGOneullanle

Figure A2-1: B

ox Plots of M

etals Background D

atasets

0.8

0.6

0.4

Concentration (mg/kg)

100500

500

2500

0.8

0.4

0.0

420

40200

15105

Concentration (mg/kg)

50250

100500

0.30

0.15

0.00

210

20100

0.8

0.6

0.4

Concentration (mg/kg)

210

0.300

0.275

0.250

503010

400

2000

An

timon

yA

rsenicB

arium

Berylliu

mC

admium

Ch

romium

Cobalt

Copper

LeadM

ercuryM

olybdenu

mN

ickel

Seleniu

mSilver

Thalliu

mV

anadiu

mZinc

Page 137: Table Proposed Cleanup Levels Groundwater · 10/21/2013  · Table 04 Summery of PrsllMnery Cost ES11motee for Soleening Feasibility Study Former Kest Property Carson, CA GeotFnlenGOneullanle

Figure A2-2: P

robability Plots of M

etals Backgroun

d Datasets

0.80.4

0.0

99.9999050101

0.1

Antim

onyPercent

100.010.0

1.00.1

99.9999050101

0.1

Arsenic

Percent100

10010

99.9999050101

0.1

Barium

Percent

1.00.1

99.9999050101

0.1

Beryllium

Percent

10.01.00

0.100.01

99.9999050101

0.1

Cadm

ium

Percent

10010

1

99.9999050101

0.1

Chrom

ium

Percent

101

99.9999050101

0.1

Cobalt

Percent

10010

1

99.9999050101

0.1

Copper

Percent

100.010.0

1.00.1

99.9999050101

0.1

Lead

Percent

1.0000.100

0.0100.001

99.9999050101

0.1

Mercury

Percent

100.000

10.0001.000

0.1000.010

0.001

99.9999050101

0.1

Molybdenum

Percent

10010

1

99.9999050101

0.1

Nickel

Percent

0.5

99.9999050101

0.1

Selenium

Percent

100.0010.00

1.000.10

0.01

99.9999050101

0.1

Silver

Percent

0.40.3

0.2

99.9999050101

0.1

Thalliu

m

Percent

1010

99.9999050101

0.1

Vanadium

Percent

100100

101

99.9999050101

0.1

Zinc

Percent

Page 138: Table Proposed Cleanup Levels Groundwater · 10/21/2013  · Table 04 Summery of PrsllMnery Cost ES11motee for Soleening Feasibility Study Former Kest Property Carson, CA GeotFnlenGOneullanle

Figure A

2-3: Box P

lot and Probability P

lots of cPA

H B

ackground Datasets

0.20

0.15

0.10

0.05

0.00

BaP-TEQ

0.150.10

0.050.00

-0.05

999050101

BaP

-TEQ

Percent

0.10000.0100

0.00100.0001

999050101

BaP

-TEQ

Percent

Boxplot of B

aP-TEQ

Probability P

lot of BaP

-TEQN

ormal

Probability P

lot of BaP

-TEQLognorm

al

Page 139: Table Proposed Cleanup Levels Groundwater · 10/21/2013  · Table 04 Summery of PrsllMnery Cost ES11motee for Soleening Feasibility Study Former Kest Property Carson, CA GeotFnlenGOneullanle

Figure A2-4-1: A

ntimony O

utlier Evaluation

0.7

0.6

0.5

0.4

0.3

Concentration (mg/kg)

0.8

0.6

0.4

0.2

32

10

-1-2

-3

Concentration (mg/kg)

Score

0.8

0.6

0.4

0.2

0.099.9

9990

5010

10.1

Concentration (mg/kg)

Percent

Mean

0.4400StD

ev0.09545

N106

AD19.968

P-Value<

0.005

Probability P

lot of Antim

onyN

ormal

0.74

Probability P

lot of Antim

onyN

ormal - 95%

CI

- No sam

ples were elim

inated as outliers

- No reliable statistical tests

Note: Sam

ples 99% N

D (only 1 sam

ple detected)

Page 140: Table Proposed Cleanup Levels Groundwater · 10/21/2013  · Table 04 Summery of PrsllMnery Cost ES11motee for Soleening Feasibility Study Former Kest Property Carson, CA GeotFnlenGOneullanle

Figure A2-4-2: A

rsenic Outlier Evaluation

1209060300

Concentration (mg/kg)

150

100500

-502

0-2

-4

Concentration (mg/kg)

100.0

10.0

1.0

0.1

99.999

9050

101

0.1

Concentration (mg/kg)

Percent

Loc0.5328

Scale0.7636

N106

AD3.029

P-Value<

0.005

Boxplot of A

rsenicN

ormal

Probability P

lot of Arsenic

Lognormal - 95%

CI

9.0

11.9

127

- considered an outlier. Lognorm

al fit shows strong linearity except one point: 127 m

ay be- G

OF test: not norm

al or lognormal distribution. But the

- Q-Q

plot indicates one suspected outlier 127.

- Rosner Test indicates outlier 127.

- 3IR box plot Tests indicate outliers: 9, 11.9 and 127.

127

Q-Q

Plot of A

rsenic

Page 141: Table Proposed Cleanup Levels Groundwater · 10/21/2013  · Table 04 Summery of PrsllMnery Cost ES11motee for Soleening Feasibility Study Former Kest Property Carson, CA GeotFnlenGOneullanle

Figure A2-4-3: B

arium O

utlier Evaluation

600

450

300

1500

Concentration (mg/kg)

600

400

2000

42

0-2

Concentration (mg/kg)

Score

1000

10010

99.999

9050

101

0.1

Concentration (mg/kg)

Percent

Loc4.046

Scale0.5592

N106

AD1.587

P-Value<

0.005

Boxplot of B

ariumN

ormal

Probability P

lot of Barium

Lognormal - 95%

CI

267

203

428

575

- - Goodness of fit test: data does not fit norm

al, lognormal or gam

ma

- Q-Q

plot based suspected outliers - 428 and 575

- Rosner test suspect outlier: 575

- 3IR suspected outliers - 203, 267, 428 and 575

Q-Q

Plot of B

arium

575

428

Page 142: Table Proposed Cleanup Levels Groundwater · 10/21/2013  · Table 04 Summery of PrsllMnery Cost ES11motee for Soleening Feasibility Study Former Kest Property Carson, CA GeotFnlenGOneullanle

Figure A2-4-4: B

eryllium O

utlier Evaluation

0.8

0.6

0.4

0.2

0.0

Concentration (mg/kg)

0.75

0.50

0.25

0.00

42

0-2

Concentration (mg/kg)

Score

1.0

0.1

99.999

9050

101

0.1

Concentration (mg/kg)

Percent

Loc-1.516

Scale0.4711

N106

AD3.983

P-Value<

0005

Boxplot of B

eryllium

Norm

al

Probability P

lot of Beryllium

Lognormal - 95%

CI

- No outlier

- GO

F test: not N, LN

, GM

(close to LN)

- Q-Q

plot based suspected outliers - None

- Rosner test suspect outlier - 0.8

- 3IR suspect outliers - 0.6, 0.7, 0.7 and 0.80.8

Q-Q

Plot of B

eryllium

Page 143: Table Proposed Cleanup Levels Groundwater · 10/21/2013  · Table 04 Summery of PrsllMnery Cost ES11motee for Soleening Feasibility Study Former Kest Property Carson, CA GeotFnlenGOneullanle

Figure A2-4-5: C

admium

Outlier Evaluation

43210

Concentration (mg/kg)

4.5

3.0

1.5

0.0

42

0-2

Concentration (mg/kg)

Score

10.0

1.0

0.1

99.999

9050

101

0.1

Concentration (mg/kg)

Percent

Boxplot of C

admiu

mN

ormal

Probability P

lot of Cadm

iumLognorm

al

- No outlier

- GO

F test: Data appear LN

- Q-Q

plot based suspected outliers - 3.81

- Rosner test outlier - 3.81

- 3IR suspected outliers - 1.0 to 3.81

1.63

1.8

3.81

3.81

Q-Q

Plot of C

admium

Page 144: Table Proposed Cleanup Levels Groundwater · 10/21/2013  · Table 04 Summery of PrsllMnery Cost ES11motee for Soleening Feasibility Study Former Kest Property Carson, CA GeotFnlenGOneullanle

Figure A2-4-6: C

hromium

Outlier Evaluation

403020100

Concentration (mg/kg)

403020100

42

0-2

Concentration (mg/kg)

Score

10010199.9

9990

5010

10.1

Concentration (mg/kg)

Percent

Loc2.352

Scale0.4235

N106

AD0.623

P-Value0.102

Boxplot of C

hromium

Norm

al

Probability P

lot of Chrom

iumLognorm

al - 95% CI

- No outlier

- GO

F: Data appear LN

- Q-Q

plot based suspected outliers - None

- Rosner test: 38.6

- 3IR suspected outliers -29.3, 36.5 and 38.6

29.3 36.538.6

Q-Q

Plot of C

hrom

ium

Page 145: Table Proposed Cleanup Levels Groundwater · 10/21/2013  · Table 04 Summery of PrsllMnery Cost ES11motee for Soleening Feasibility Study Former Kest Property Carson, CA GeotFnlenGOneullanle

Figure A2-4-7: C

obalt Outlier Evaluation

15105

Concentration (mg/kg)

1612840

32

10

-1-2

-3

Concentration (mg/kg)

Score

10199.9

9990

5010

10.1

Concentration (mg/kg)

Percent

Loc1.560

Scale0.3694

N106

AD0.721

P-Value0

058

Boxplot of C

obaltN

ormal

Probability P

lot of Cobalt

Lognormal - 95%

CI

- No outlier

- GO

F test: Lognormal

- Q-Q

plot based suspected outliers - None

- Rosner test: 15.7

- 3IR suspected outliers - 13.1, 13.5, 15.7

13.113.5

15.7

15.7

Q-Q

Plot of C

obalt

Page 146: Table Proposed Cleanup Levels Groundwater · 10/21/2013  · Table 04 Summery of PrsllMnery Cost ES11motee for Soleening Feasibility Study Former Kest Property Carson, CA GeotFnlenGOneullanle

Figure A2-4-8: C

opper Outlier Evaluation

604530150

Concentration (mg/kg)

6040200

-204

20

-2

Concentration (mg/kg)

Score

100101

99.999

9050

101

0.1

Concentration (mg/kg)

Percent

Loc2.426

Scale0.6529

N106

AD0.403

P-Value0.352

Boxplot of C

opperN

ormal

Probability P

lot of Copper

Lognormal - 95%

CI

- No outlier

- GO

F test: Lognormal or gam

ma

- Q-Q

plot based suspected outliers - None

- Rosner test =

59

- 3IR suspected outliers - 5959

Q-Q

Plot of C

opper

Page 147: Table Proposed Cleanup Levels Groundwater · 10/21/2013  · Table 04 Summery of PrsllMnery Cost ES11motee for Soleening Feasibility Study Former Kest Property Carson, CA GeotFnlenGOneullanle

Figure A2-4-9: Lead O

utlier Evaluation

1007550250

Concentration (mg/kg)

100500

-504

20

-2

Concentration (mg/kg)

Score

100.0

10.0

1.0

0.199.9

9990

5010

10.1

Concentration (mg/kg)

Percent

Loc2.006

Scale0.9512

N106

AD4.356

P-Value<

0.005

Boxplot of Lead

Norm

al

Probability P

lot of LeadLognorm

al - 95% CI

- No outlier

elevated than rest of data- Suspected outlier 112 does not appear to be significantly

- GO

F test: not N, LN

or GM

- Q-Q

plot based suspected outliers - 112

- Rosner test outlier =

112

- 3IR suspected outliers - 43.3 to 112 112

Q-Q

Plot of Lead

112

Page 148: Table Proposed Cleanup Levels Groundwater · 10/21/2013  · Table 04 Summery of PrsllMnery Cost ES11motee for Soleening Feasibility Study Former Kest Property Carson, CA GeotFnlenGOneullanle

Figure A2-4-10: M

ercury Outlier Evaluation

0.3

0.2

0.1

0.0

Concentration (mg/kg)

0.3

0.2

0.1

0.0

-0.1

21

0-1

-2

Concentration (mg/kg)

Score

1.00

0.10

0.01

9990

5010

1

Concentration (mg/kg)

Percent

Loc-3.342

Scale0.7097

N30

AD1.621

P-Value<

0.005

Boxplot of M

ercury

Norm

al

Lognormal - 95%

CI

- No outlier

- Only detected values used in probability plot

Note: %

ND

= 71.7%

. - G

OF: not N

or LN. D

ata appears fairly linear under LN.

- Q-Q

plot based suspected outliers - none

- Rosner test and 3IR suspected outliers - 0.324

0.324

Q-Q

Plot of M

ercury

0.324

Probability P

lot of Mercury

Page 149: Table Proposed Cleanup Levels Groundwater · 10/21/2013  · Table 04 Summery of PrsllMnery Cost ES11motee for Soleening Feasibility Study Former Kest Property Carson, CA GeotFnlenGOneullanle

Figure A2-4-11: M

olybdenum O

utlier Evaluation

0.6

0.4

0.2

Concentration (mg/kg)

0.6

0.4

0.2

0.0

21

0-1

-2

Concentration (mg/kg)

Score

1.0

0.1

9990

5010

1

Concentration (mg/kg)

Percent

Loc-1.800

Scale0.4923

N16

AD1.120

P-Value<

0.005

Norm

al

Lognormal - 95%

CI

- Only detected values used in probability plot

Note: %

ND

= 84.9%

. - Probability plot based suspected outliers - none

- Rosner test and 3IR suspected outliers - none

Probability P

lot of Molybdenum

Boxplot of M

olybdenum

Probability P

lot of Molybdenum

Page 150: Table Proposed Cleanup Levels Groundwater · 10/21/2013  · Table 04 Summery of PrsllMnery Cost ES11motee for Soleening Feasibility Study Former Kest Property Carson, CA GeotFnlenGOneullanle

Figure A2-4-12: N

ickel Outlier Evaluation

252015105

Concentration (mg/kg)

3020100

-104

20

-2

Concentration (mg/kg)

Score

100101

99.999

9050

101

0.1

Concentration (mg/kg)

Percent

Loc1.866

Scale0.5612

N106

AD0.698

P-Value0.066

Boxplot of N

ickelN

ormal

Probability P

lot of Nickel

Lognormal - 95%

CI

- No outlier

- GO

F test: Lognormal

- Q-Q

plot based suspected outliers - none

- Rosner test 27.2

- 3IR suspected outliers -25.3, 27.2

Q-Q

Plot of N

ickel

Page 151: Table Proposed Cleanup Levels Groundwater · 10/21/2013  · Table 04 Summery of PrsllMnery Cost ES11motee for Soleening Feasibility Study Former Kest Property Carson, CA GeotFnlenGOneullanle

Figure A2-4-13: Selenium

Outlier Evaluation

0.8

0.7

0.6

0.5

0.4

Concentration (mg/kg)

0.8

0.6

0.4

0.23

21

0-1

-2-3

Concentration (mg/kg)

Score

0.5

99.999

9050

101

0.1

Concentration (mg/kg)

Percent

Loc-0.8024

Scale0.1742

N106

AD19.942

P-Value<

0.005

Boxplot of Seleniu

mN

ormal

Probability P

lot of SeleniumLognorm

al - 95% CI

Q-Q

Plot of Selenium

- No sam

ples were elim

inated as outliers

- No reliable statistical tests

Note: Sam

ples 99% N

D (only 1 sam

ple detected)

Page 152: Table Proposed Cleanup Levels Groundwater · 10/21/2013  · Table 04 Summery of PrsllMnery Cost ES11motee for Soleening Feasibility Study Former Kest Property Carson, CA GeotFnlenGOneullanle

Figure A2-4-14: Silver O

utlier Evaluation

1.2

0.9

0.6

0.3

0.0

Concentration (mg/kg)

1.5

1.0

0.5

0.0

-0.5

21

0-1

-2

Concentration (mg/kg)

Score

10.00

1.00

0.10

0.0199

9050

101

Concentration (mg/kg)

Percent

Loc-0.8796

Scale0.8982

N9

AD0.493

P-Value0.159

Norm

al Q

-Q P

lot of Silver

Lognormal - 95%

CI

- No outlier

- Only detected values used in probability plot

Note: %

ND

= 91.5%

. - Q

-Q plot based suspected outliers - none

- Rosner test and 3IR suspected outliers - none

Boxplot of Silver

Probability P

lot of Silver

Page 153: Table Proposed Cleanup Levels Groundwater · 10/21/2013  · Table 04 Summery of PrsllMnery Cost ES11motee for Soleening Feasibility Study Former Kest Property Carson, CA GeotFnlenGOneullanle

Figure A2-4-15: Thallium

Outlier Evaluation

0.300

0.285

0.270

0.255

0.240

Concentration (mg/kg)

0.40

0.35

0.30

0.25

0.20

32

10

-1-2

-3

Concentration (mg/kg)

Score

0.40

0.35

0.30

0.25

0.20

99.999

9050

101

0.1

Concentration (mg/kg)

Percent

Loc-1.289

Scale0.1215

N106

AD21.831

P-Value<

0.005

Boxplot of Thalliu

mN

ormal

Probability P

lot of ThalliumLognorm

al - 95% CI

Q-Q

Plot of Thallium

%N

D =

100%

Page 154: Table Proposed Cleanup Levels Groundwater · 10/21/2013  · Table 04 Summery of PrsllMnery Cost ES11motee for Soleening Feasibility Study Former Kest Property Carson, CA GeotFnlenGOneullanle

Figure A2-4-16: V

anadium O

utlier Evaluation

5040302010

Concentration (mg/kg)

483624120

32

10

-1-2

-3

Concentration (mg/kg)

Score

10010

99.999

9050

101

0.1

Concentration (mg/kg)

Percent

Loc2.867

Scale0.3922

N106

AD0.274

P-Value0

657

Boxplot of V

anadiumN

ormal

Probability P

lot of Van

adiumLognorm

al - 95% CI

- No outlier

- GO

F Test : Lognormal

- Q-Q

plot based suspected outliers - None

- Rosner test and 3IR suspected outliers - none

Q-Q

Plot of V

anadium

Page 155: Table Proposed Cleanup Levels Groundwater · 10/21/2013  · Table 04 Summery of PrsllMnery Cost ES11motee for Soleening Feasibility Study Former Kest Property Carson, CA GeotFnlenGOneullanle

Figure A2-4-17: Zinc O

utlier Evaluation

600

450

300

1500

Concentration (mg/kg)

600

400

2000

42

0-2

Concentration (mg/kg)

Score

1000

10010199.9

9990

5010

10.1

Concentration (mg/kg)

Percent

Loc3.482

Scale0.7521

N106

AD1.826

P-Value<

0.005

Boxplot of Zinc

Norm

al

Probability P

lot of ZincLognorm

al - 95% CI

- potential suspect outlier = 525

- GO

F test: not LN, N

or GM

(close to LN)

- Q-Q

plot based suspected outliers - 525

Rosner test: 525

-3IR suspected outliers - 151, 172, 291, 525

525

291172151

525

Q-Q

Plot of Zinc

Page 156: Table Proposed Cleanup Levels Groundwater · 10/21/2013  · Table 04 Summery of PrsllMnery Cost ES11motee for Soleening Feasibility Study Former Kest Property Carson, CA GeotFnlenGOneullanle

Figure A2-4-18: cP

AH

Outlier Evaluation

0.20

0.15

0.10

0.05

0.00

BaP-TEQ

0.15

0.10

0.05

0.00

-0.05

21

0-1

-2

BaP-TEQ

Score

0.1000

0.0100

0.0010

0.0001

9990

5010

1

BaP-TEQ

Percent

Loc-6.125

Scale1.117

N35

AD3.442

P-Value<

0.005

Boxplot of B

aP-TEQ

Norm

al

Probability P

lot of BaP

-TEQLognorm

al - 95% CI

Q-Q

Plot of B

aP-TEQ

0.179

0.179

- No outlier

- GO

F test: No discernible distribution (not N

, LN or G

M)

- Q-Q

plot based suspected outliers - 0.179

- Rosner test = 0.179

- 3IR suspected outliers - 0.179

Page 157: Table Proposed Cleanup Levels Groundwater · 10/21/2013  · Table 04 Summery of PrsllMnery Cost ES11motee for Soleening Feasibility Study Former Kest Property Carson, CA GeotFnlenGOneullanle

Whittier

Visalia

Santa Barbara

Santa Ana

San Pedro

Riverside

Redlands

Pomona

Monrovia

LA Main St

LA Alameda

Ingelwood

Hemet

Fullerton

Former Ontario

Elsinore

Dinuba

Covina

Corona

Colton

Beaumont

AlhambraW

MSBP

43210

Concentration (mg/kg)

Figure A2-5: B

oxplots of Local Background an

d South

ern C

alifornia B

ackgroun

d cPA

H D

atasets

BaP TEQ BTV Value =

0.9 mg/kg

Page 158: Table Proposed Cleanup Levels Groundwater · 10/21/2013  · Table 04 Summery of PrsllMnery Cost ES11motee for Soleening Feasibility Study Former Kest Property Carson, CA GeotFnlenGOneullanle

SB0484\SB0484_SSCG_Appendix A_Attachment A2.docx February 2013

ProUCL Output

Page 159: Table Proposed Cleanup Levels Groundwater · 10/21/2013  · Table 04 Summery of PrsllMnery Cost ES11motee for Soleening Feasibility Study Former Kest Property Carson, CA GeotFnlenGOneullanle

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

32

33

34

35

36

37

38

39

40

41

42

43

44

45

46

47

48

49

50

51

52

53

A B C D E F G H I J K L

90% Percentile (z) 3.938 90% Percentile (z) 3.929

95% UTL 99% Coverage 6.053 95% UTL 99% Coverage 10.38

95% UPL (t) 4.526 95% UPL (t) 5.148

Mean 1.987 Mean (Log Scale) 0.472

SD 1.522 SD (Log Scale) 0.7

Assuming Normal Distribution Assuming Lognormal Distribution

DL/2 Substitution Method DL/2 Substitution Method

5% Lilliefors Critical Value 0.0877 5% Lilliefors Critical Value 0.0877

Data not Normal at 5% Significance Level Data not Lognormal at 5% Significance Level

Normal Distribution Test with Detected Values Only Lognormal Distribution Test with Detected Values Only

Lilliefors Test Statistic 0.181 Lilliefors Test Statistic 0.0886

Background Statistics

Minimum Non-Detect 0.3 Minimum Non-Detect -1.204

Maximum Non-Detect 0.3 Maximum Non-Detect -1.204

Mean of Detected 2.041 Mean of Detected 0.542

SD of Detected 1.511 SD of Detected 0.577

Minimum Detected 0.3 Minimum Detected -1.204

Maximum Detected 11.9 Maximum Detected 2.477

Number of Missing Values 1

Raw Statistics Log-transformed Statistics

Number of Distinct Detected Data 61 Number of Non-Detect Data 3

Tolerance Factor 2.671 Percent Non-Detects 2.86%

Arsenic

General Statistics

Number of Valid Data 105 Number of Detected Data 102

It is suggested to use alternative site specific values determined by the Project Team to estimate environmental parameters (e.g., EPC, BTV).

The data set for variable Antimony was not processed!

Number of Distinct Detected Data 1 Number of Non-Detect Data 105

Warning: Only one distinct data value was detected! ProUCL (or any other software) should not be used on such a data set!

Antimony

General Statistics

Number of Valid Data 106 Number of Detected Data 1

Different or Future K Values 1

Number of Bootstrap Operations 2000

Full Precision OFF

Confidence Coefficient 95%

Coverage 99%

General Background Statistics for Data Sets with Non-Detects

User Selected Options

From File WorkSheet.wst

Page 160: Table Proposed Cleanup Levels Groundwater · 10/21/2013  · Table 04 Summery of PrsllMnery Cost ES11motee for Soleening Feasibility Study Former Kest Property Carson, CA GeotFnlenGOneullanle

54

55

56

57

58

59

60

61

62

63

64

65

66

67

68

69

70

71

72

73

74

75

76

77

78

79

80

81

82

83

84

85

86

87

88

89

90

91

92

93

94

95

96

97

98

99

100

101

102

103

104

105

106

A B C D E F G H I J K L

First Quartile 41.25 First Quartile 3.72

Maximum 267 Maximum 5.587

Second Largest 203 Second Largest 5.313

Raw Statistics Log-Transformed Statistics

Minimum 17.7 Minimum 2.874

General Statistics

Total Number of Observations 104 Number of Distinct Observations 95

Tolerance Factor 2.672 Number of Missing Values 2

Note: DL/2 is not a recommended method.

Barium

95% Percentile 5.909

99% Percentile 9.063

95% WH Approx. Gamma UTL with 99% Coverage 8.224

90% Percentile 4.549 95% HW Approx. Gamma UTL with 99% Coverage 10.41

Nu star 213.2 95% Wilson Hilferty (WH) Approx. Gamma UPL 4.962

95% Percentile of Chisquare (2k) 6.051 95% Hawkins Wixley (HW) Approx. Gamma UPL 5.684

k star 1.015

Theta star 1.953 Gamma ROS Limits with Extrapolated Data

Median 1.66 95% Percentile (z) 4.476

SD 1.528 99% Percentile (z) 5.505

Gamma ROS Statistics with Extrapolated Data 95% KM UPL (t) 4.51

Mean 1.983 90% Percentile (z) 3.927

95% KM UTL with 99% Coverage 6.025

Assuming Gamma Distribution 95% KM Chebyshev UPL 8.605

5% K-S Critical Value 0.0895 SD 1.51

Data not Gamma Distributed at 5% Significance Level SE of Mean 0.148

5% A-D Critical Value 0.758 Kaplan-Meier (KM) Method

K-S Test Statistic 0.101 Mean 1.992

A-D Test Statistic 1.627 Nonparametric Statistics

Theta Star 0.685

nu star 607.6

Gamma Distribution Test with Detected Values Only Data Distribution Test with Detected Values Only

k star (bias corrected) 2.978 Data do not follow a Discernable Distribution (0.05)

95% Percentile (z) 4.51 95% Percentile (z) 4.542

99% Percentile (z) 5.563 99% Percentile (z) 6.907

95% UPL (t) 4.545 95% UPL (t) 4.605

90% Percentile (z) 3.949 90% Percentile (z) 3.632

95% BCA UTL with 99% Coverage 11.9

95% Bootstrap (%) UTL with 99% Coverage 11.9

SD 1.545 SD in Original Scale 1.513

95% UTL with 99% Coverage 6.095 95% UTL with 99% Coverage 8.536

Maximum Likelihood Estimate(MLE) Method Log ROS Method

Mean 1.969 Mean in Original Scale 1.995

99% Percentile (z) 5.529 99% Percentile (z) 8.162

95% Percentile (z) 4.491 95% Percentile (z) 5.067

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107

108

109

110

111

112

113

114

115

116

117

118

119

120

121

122

123

124

125

126

127

128

129

130

131

132

133

134

135

136

137

138

139

140

141

142

143

144

145

146

147

148

149

150

151

152

153

154

155

156

157

158

159

A B C D E F G H I J K L

Tolerance Factor 2.669 Percent Non-Detects 16.98%

Raw Statistics Log-transformed Statistics

Number of Valid Data 106 Number of Detected Data 88

Number of Distinct Detected Data 38 Number of Non-Detect Data 18

Beryllium

General Statistics

95% WH Approx. Gamma UTL with 99% Coverage 167.4

95% HW Approx. Gamma UTL with 99% Coverage 172.2

95% WH Approx. Gamma UPL 116.6 Upper Threshold Limit Based upon IQR 125.3

95% HW Approx. Gamma UPL 117.3

99% Percentile 150 95% UPL 109.5

95% Chebyshev UPL 211.6

90% Percentile 101.1 95% Percentile Bootstrap UTL with 99% Coverage 267

95% Percentile 116.7 95% BCA Bootstrap UTL with 99% Coverage 267

Assuming Gamma Distribution 95% UTL with 99% Coverage 267

5% K-S Critical Value 0.0887 99% Percentile 201.6

Data not Gamma Distributed at 5% Significance Level

5% A-D Critical Value 0.755 90% Percentile 87.05

K-S Test Statistic 0.091 95% Percentile 106.7

A-D Test Statistic 0.826 Nonparametric Statistics

MLE of Standard Deviation 29.51

nu star 906

Theta Star 14.14

MLE of Mean 61.58

Gamma Distribution Test Data Distribution Test

k star 4.356 Data appear Lognormal at 5% Significance Level

95% Percentile (z) 117.9 95% Percentile (z) 119.9

99% Percentile (z) 141.3 99% Percentile (z) 165.8

95% UPL (t) 118.7 95% UPL (t) 121.2

90% Percentile (z) 105.5 90% Percentile (z) 100.9

Assuming Normal Distribution Assuming Lognormal Distribution

95% UTL with 99% Coverage 153.1 95% UTL with 99% Coverage 195.4

Lilliefors Critical Value 0.0869 Lilliefors Critical Value 0.0869

Data not Normal at 5% Significance Level Data appear Lognormal at 5% Significance Level

Normal Distribution Test Lognormal Distribution Test

Lilliefors Test Statistic 0.15 Lilliefors Test Statistic 0.0764

Skewness 2.953

Background Statistics

SD 34.25 SD 0.475

Coefficient of Variation 0.556

Third Quartile 74.85 Third Quartile 4.315

Mean 61.58 Mean 4.005

Median 56 Median 4.025

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160

161

162

163

164

165

166

167

168

169

170

171

172

173

174

175

176

177

178

179

180

181

182

183

184

185

186

187

188

189

190

191

192

193

194

195

196

197

198

199

200

201

202

203

204

205

206

207

208

209

210

211

212

A B C D E F G H I J K L

Mean 0.232 90% Percentile (z) 0.405

Assuming Gamma Distribution 95% KM Chebyshev UPL 0.756

Gamma ROS Statistics with Extrapolated Data 95% KM UPL (t) 0.449

Data not Gamma Distributed at 5% Significance Level SE of Mean 0.0111

95% KM UTL with 99% Coverage 0.562

K-S Test Statistic 0.201 Mean 0.26

5% K-S Critical Value 0.0954 SD 0.113

A-D Test Statistic 6.767 Nonparametric Statistics

5% A-D Critical Value 0.753 Kaplan-Meier (KM) Method

nu star 1351

Gamma Distribution Test with Detected Values Only Data Distribution Test with Detected Values Only

k star (bias corrected) 7.677 Data do not follow a Discernable Distribution (0.05)

Theta Star 0.0359

99% Percentile (z) 0.574 99% Percentile (z) 0.597

90% Percentile (z) 0.42 90% Percentile (z) 0.388

95% Percentile (z) 0.474 95% Percentile (z) 0.451

95% Bootstrap (%) UTL with 99% Coverage 0.8

95% UPL (t) 0.477 95% UPL (t) 0.455

95% UTL with 99% Coverage 0.624 95% UTL with 99% Coverage 0.687

95% BCA UTL with 99% Coverage 0.795

Mean 0.232 Mean in Original Scale 0.25

SD 0.147 SD in Original Scale 0.122

Maximum Likelihood Estimate(MLE) Method Log ROS Method

95% Percentile (z) 0.464 95% Percentile (z) 0.609

99% Percentile (z) 0.558 99% Percentile (z) 0.977

95% UPL (t) 0.467 95% UPL (t) 0.619

90% Percentile (z) 0.414 90% Percentile (z) 0.474

SD 0.138 SD (Log Scale) 0.692

95% UTL 99% Coverage 0.605 95% UTL 99% Coverage 1.238

DL/2 Substitution Method DL/2 Substitution Method

Mean 0.237 Mean (Log Scale) -1.633

Data not Normal at 5% Significance Level Data not Lognormal at 5% Significance Level

Assuming Normal Distribution Assuming Lognormal Distribution

Lilliefors Test Statistic 0.237 Lilliefors Test Statistic 0.19

5% Lilliefors Critical Value 0.0944 5% Lilliefors Critical Value 0.0944

Observations < Largest ND are treated as NDs Single DL Non-Detect Percentage 16.98%

Background Statistics

Normal Distribution Test with Detected Values Only Lognormal Distribution Test with Detected Values Only

Note: Data have multiple DLs - Use of KM Method is recommended Number treated as Non-Detect with Single DL 18

For all methods (except KM, DL/2, and ROS Methods), Number treated as Detected with Single DL 88

Data with Multiple Detection Limits Single Detection Limit Scenario

Minimum Non-Detect 0.0894 Minimum Non-Detect -2.415

Maximum Non-Detect 0.1 Maximum Non-Detect -2.303

Mean of Detected 0.276 Mean of Detected -1.353

SD of Detected 0.119 SD of Detected 0.333

Minimum Detected 0.182 Minimum Detected -1.704

Maximum Detected 0.8 Maximum Detected -0.223

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A B C D E F G H I J K L

Mean -0.0672 Mean in Original Scale 0.288

SD 0.794 SD in Original Scale 0.474

Maximum Likelihood Estimate(MLE) Method Log ROS Method

95% Percentile (z) 1.065 95% Percentile (z) 0.887

99% Percentile (z) 1.39 99% Percentile (z) 1.977

95% UPL (t) 1.076 95% UPL (t) 0.91

90% Percentile (z) 0.892 90% Percentile (z) 0.578

SD 0.477 SD (Log Scale) 1.177

95% UTL 99% Coverage 1.554 95% UTL 99% Coverage 2.958

DL/2 Substitution Method DL/2 Substitution Method

Mean 0.28 Mean (Log Scale) -2.056

Data not Normal at 5% Significance Level Data appear Lognormal at 5% Significance Level

Assuming Normal Distribution Assuming Lognormal Distribution

Shapiro Wilk Test Statistic 0.623 Shapiro Wilk Test Statistic 0.962

5% Shapiro Wilk Critical Value 0.947 5% Shapiro Wilk Critical Value 0.947

Observations < Largest ND are treated as NDs Single DL Non-Detect Percentage 53.77%

Background Statistics

Normal Distribution Test with Detected Values Only Lognormal Distribution Test with Detected Values Only

Data with Multiple Detection Limits Single Detection Limit Scenario

Note: Data have multiple DLs - Use of KM Method is recommended Number treated as Non-Detect with Single DL 57

For all methods (except KM, DL/2, and ROS Methods), Number treated as Detected with Single DL 49

Maximum Non-Detect 0.1 Maximum Non-Detect -2.303

SD of Detected 0.599 SD of Detected 0.749

Minimum Non-Detect 0.0883 Minimum Non-Detect -2.427

Maximum Detected 3.81 Maximum Detected 1.338

Mean of Detected 0.551 Mean of Detected -0.917

Raw Statistics Log-transformed Statistics

Minimum Detected 0.105 Minimum Detected -2.254

Number of Distinct Detected Data 24 Number of Non-Detect Data 57

Tolerance Factor 2.669 Percent Non-Detects 53.77%

Cadmium

General Statistics

Number of Valid Data 106 Number of Detected Data 49

99% Percentile 1.52

Note: DL/2 is not a recommended method.

90% Percentile 0.625 95% HW Approx. Gamma UTL with 99% Coverage 2.113

95% Percentile 0.884

95% Percentile of Chisquare (2k) 3.903 95% Hawkins Wixley (HW) Approx. Gamma UPL 0.961

95% WH Approx. Gamma UTL with 99% Coverage 1.379

Theta star 0.453 Gamma ROS Limits with Extrapolated Data

Nu star 108.6 95% Wilson Hilferty (WH) Approx. Gamma UPL 0.742

SD 0.145 99% Percentile (z) 0.523

k star 0.512

Median 0.206 95% Percentile (z) 0.446

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A B C D E F G H I J K L

Coefficient of Variation 0.508

Skewness 2.235

Mean 11.58 Mean 2.352

SD 5.884 SD 0.424

Median 10.25 Median 2.327

Third Quartile 13.08 Third Quartile 2.571

Second Largest 36.5 Second Largest 3.597

First Quartile 8.013 First Quartile 2.081

Minimum 4.4 Minimum 1.482

Maximum 38.6 Maximum 3.653

Tolerance Factor 2.669

Raw Statistics Log-Transformed Statistics

Chromium

General Statistics

Total Number of Observations 106 Number of Distinct Observations 86

99% Percentile 3.609

Note: DL/2 is not a recommended method.

90% Percentile 0.729 95% HW Approx. Gamma UTL with 99% Coverage 4.69

95% Percentile 1.445

95% Percentile of Chisquare (2k) 1.417 95% Hawkins Wixley (HW) Approx. Gamma UPL 1.292

95% WH Approx. Gamma UTL with 99% Coverage 2.919

Theta star 2.038 Gamma ROS Limits with Extrapolated Data

Nu star 26.47 95% Wilson Hilferty (WH) Approx. Gamma UPL 1.083

SD 0.49 99% Percentile (z) 1.382

k star 0.125

Mean 0.254 90% Percentile (z) 0.901

Median 0.000001 95% Percentile (z) 1.068

Assuming Gamma Distribution 95% KM Chebyshev UPL 2.328

Gamma ROS Statistics with Extrapolated Data 95% KM UPL (t) 1.079

Data not Gamma Distributed at 5% Significance Level SE of Mean 0.0452

95% KM UTL with 99% Coverage 1.54

K-S Test Statistic 0.165 Mean 0.311

5% K-S Critical Value 0.129 SD 0.461

A-D Test Statistic 1.429 Nonparametric Statistics

5% A-D Critical Value 0.765 Kaplan-Meier (KM) Method

nu star 158.7

Gamma Distribution Test with Detected Values Only Data Distribution Test with Detected Values Only

k star (bias corrected) 1.62 Data appear Lognormal at 5% Significance Level

Theta Star 0.34

99% Percentile (z) 1.78 99% Percentile (z) 2.607

90% Percentile (z) 0.95 90% Percentile (z) 0.677

95% Percentile (z) 1.239 95% Percentile (z) 1.082

95% Bootstrap (%) UTL with 99% Coverage 3.81

95% UPL (t) 1.257 95% UPL (t) 1.114

95% UTL with 99% Coverage 2.052 95% UTL with 99% Coverage 4.055

95% BCA UTL with 99% Coverage 3.81

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A B C D E F G H I J K L

Minimum Non-Detect 2.5 Minimum Non-Detect 0.916

Maximum Non-Detect 2.5 Maximum Non-Detect 0.916

Mean of Detected 5.215 Mean of Detected 1.585

SD of Detected 2.16 SD of Detected 0.353

Minimum Detected 2.5 Minimum Detected 0.916

Maximum Detected 15.7 Maximum Detected 2.754

Tolerance Factor 2.669 Percent Non-Detects 3.77%

Raw Statistics Log-transformed Statistics

Number of Valid Data 106 Number of Detected Data 102

Number of Distinct Detected Data 74 Number of Non-Detect Data 4

Cobalt

General Statistics

95% WH Approx. Gamma UTL with 99% Coverage 29.43

95% HW Approx. Gamma UTL with 99% Coverage 30.01

95% WH Approx. Gamma UPL 21.01 Upper Threshold Limit Based upon IQR 20.67

95% HW Approx. Gamma UPL 21.04

99% Percentile 26.55 95% UPL 21.6

95% Chebyshev UPL 37.34

90% Percentile 18.39 95% Percentile Bootstrap UTL with 99% Coverage 38.6

95% Percentile 21.01 95% BCA Bootstrap UTL with 99% Coverage 38.6

Assuming Gamma Distribution 95% UTL with 99% Coverage 38.6

5% K-S Critical Value 0.088 99% Percentile 36.14

Data not Gamma Distributed at 5% Significance Level

5% A-D Critical Value 0.754 90% Percentile 17.5

K-S Test Statistic 0.103 95% Percentile 21.5

A-D Test Statistic 1.551 Nonparametric Statistics

MLE of Standard Deviation 5.088

nu star 1098

Theta Star 2.236

MLE of Mean 11.58

Gamma Distribution Test Data Distribution Test

k star 5.177 Data appear Lognormal at 5% Significance Level

95% Percentile (z) 21.25 95% Percentile (z) 21.09

99% Percentile (z) 25.26 99% Percentile (z) 28.14

95% UPL (t) 21.39 95% UPL (t) 21.29

90% Percentile (z) 19.12 90% Percentile (z) 18.08

Assuming Normal Distribution Assuming Lognormal Distribution

95% UTL with 99% Coverage 27.28 95% UTL with 99% Coverage 32.54

Lilliefors Critical Value 0.0861 Lilliefors Critical Value 0.0861

Data not Normal at 5% Significance Level Data appear Lognormal at 5% Significance Level

Background Statistics

Normal Distribution Test Lognormal Distribution Test

Lilliefors Test Statistic 0.165 Lilliefors Test Statistic 0.0696

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A B C D E F G H I J K L

95% Percentile 14.43

99% Percentile 21.81

95% WH Approx. Gamma UTL with 99% Coverage 18.02

90% Percentile 11.23 95% HW Approx. Gamma UTL with 99% Coverage 23.83

Nu star 238.4 95% Wilson Hilferty (WH) Approx. Gamma UPL 11.5

95% Percentile of Chisquare (2k) 6.466 95% Hawkins Wixley (HW) Approx. Gamma UPL 13.64

k star 1.125

Theta star 4.464 Gamma ROS Limits with Extrapolated Data

Median 4.74 95% Percentile (z) 8.684

SD 2.337 99% Percentile (z) 10.16

Gamma ROS Statistics with Extrapolated Data 95% KM UPL (t) 8.732

Mean 5.021 90% Percentile (z) 7.895

95% KM UTL with 99% Coverage 10.91

Assuming Gamma Distribution 95% KM Chebyshev UPL 14.62

5% K-S Critical Value 0.089 SD 2.171

Data not Gamma Distributed at 5% Significance Level SE of Mean 0.212

5% A-D Critical Value 0.753 Kaplan-Meier (KM) Method

K-S Test Statistic 0.122 Mean 5.113

A-D Test Statistic 1.318 Nonparametric Statistics

Theta Star 0.699

nu star 1522

Gamma Distribution Test with Detected Values Only Data Distribution Test with Detected Values Only

k star (bias corrected) 7.461 Data do not follow a Discernable Distribution (0.05)

95% Percentile (z) 8.753 95% Percentile (z) 8.88

99% Percentile (z) 10.28 99% Percentile (z) 11.53

95% UPL (t) 8.803 95% UPL (t) 8.957

90% Percentile (z) 7.94 90% Percentile (z) 7.725

95% BCA UTL with 99% Coverage 15.7

95% Bootstrap (%) UTL with 99% Coverage 15.7

SD 2.239 SD in Original Scale 2.202

95% UTL with 99% Coverage 11.05 95% UTL with 99% Coverage 13.15

Maximum Likelihood Estimate(MLE) Method Log ROS Method

Mean 5.071 Mean in Original Scale 5.097

99% Percentile (z) 10.3 99% Percentile (z) 12.71

90% Percentile (z) 7.95 90% Percentile (z) 8.081

95% Percentile (z) 8.767 95% Percentile (z) 9.46

95% UTL 99% Coverage 11.07 95% UTL 99% Coverage 14.75

95% UPL (t) 8.818 95% UPL (t) 9.552

Mean 5.066 Mean (Log Scale) 1.534

SD 2.25 SD (Log Scale) 0.434

Assuming Normal Distribution Assuming Lognormal Distribution

DL/2 Substitution Method DL/2 Substitution Method

5% Lilliefors Critical Value 0.0877 5% Lilliefors Critical Value 0.0877

Data not Normal at 5% Significance Level Data not Lognormal at 5% Significance Level

Normal Distribution Test with Detected Values Only Lognormal Distribution Test with Detected Values Only

Lilliefors Test Statistic 0.17 Lilliefors Test Statistic 0.0953

Background Statistics

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477

A B C D E F G H I J K L

99% Percentile 42.2 95% UPL 34.32

95% Chebyshev UPL 56.02

90% Percentile 25.8 95% Percentile Bootstrap UTL with 99% Coverage 59

95% Percentile 30.94 95% BCA Bootstrap UTL with 99% Coverage 59

Assuming Gamma Distribution 95% UTL with 99% Coverage 59

5% K-S Critical Value 0.0888 99% Percentile 43.79

Data follow Appx. Gamma Distribution at 5% Significance Level

5% A-D Critical Value 0.762 90% Percentile 25.8

K-S Test Statistic 0.0891 95% Percentile 31.78

A-D Test Statistic 0.689 Nonparametric Statistics

MLE of Standard Deviation 8.85

nu star 526.1

Theta Star 5.618

MLE of Mean 13.94

Gamma Distribution Test Data Distribution Test

k star 2.482 Data Follow Appr. Gamma Distribution at 5% Significance Level

95% Percentile (z) 29.74 95% Percentile (z) 33.11

99% Percentile (z) 36.29 99% Percentile (z) 51.67

95% UPL (t) 29.96 95% UPL (t) 33.6

90% Percentile (z) 26.25 90% Percentile (z) 26.12

Assuming Normal Distribution Assuming Lognormal Distribution

95% UTL with 99% Coverage 39.58 95% UTL with 99% Coverage 64.62

Lilliefors Critical Value 0.0861 Lilliefors Critical Value 0.0861

Data not Normal at 5% Significance Level Data appear Lognormal at 5% Significance Level

Normal Distribution Test Lognormal Distribution Test

Lilliefors Test Statistic 0.132 Lilliefors Test Statistic 0.0712

Skewness 1.735

Background Statistics

SD 9.607 SD 0.653

Coefficient of Variation 0.689

Third Quartile 18.35 Third Quartile 2.91

Mean 13.94 Mean 2.426

First Quartile 6.818 First Quartile 1.919

Median 12.15 Median 2.497

Maximum 59 Maximum 4.078

Second Largest 44.1 Second Largest 3.786

Raw Statistics Log-Transformed Statistics

Minimum 2.69 Minimum 0.99

General Statistics

Total Number of Observations 106 Number of Distinct Observations 89

Tolerance Factor 2.669

Note: DL/2 is not a recommended method.

Copper

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510

511

512

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517

518

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520

521

522

523

524

525

526

527

528

529

530

A B C D E F G H I J K L

Theta Star 13.36

Gamma Distribution Test with Detected Values Only Data Distribution Test with Detected Values Only

k star (bias corrected) 1.025 Data do not follow a Discernable Distribution (0.05)

95% Percentile (z) 43.52 95% Percentile (z) 38.58

99% Percentile (z) 56.47 99% Percentile (z) 77.98

95% UPL (t) 43.95 95% UPL (t) 39.49

90% Percentile (z) 36.62 90% Percentile (z) 26.51

95% BCA UTL with 99% Coverage 112

95% Bootstrap (%) UTL with 99% Coverage 112

SD 19 SD in Original Scale 18.27

95% UTL with 99% Coverage 62.97 95% UTL with 99% Coverage 111.1

Maximum Likelihood Estimate(MLE) Method Log ROS Method

Mean 12.27 Mean in Original Scale 12.99

99% Percentile (z) 55.47 99% Percentile (z) 74.63

90% Percentile (z) 36.4 90% Percentile (z) 26.02

95% Percentile (z) 43.03 95% Percentile (z) 37.54

95% UTL 99% Coverage 61.73 95% UTL 99% Coverage 105.4

95% UPL (t) 43.44 95% UPL (t) 38.39

Mean 13 Mean (Log Scale) 1.966

SD 18.26 SD (Log Scale) 1.008

Assuming Normal Distribution Assuming Lognormal Distribution

DL/2 Substitution Method DL/2 Substitution Method

5% Lilliefors Critical Value 0.0886 5% Lilliefors Critical Value 0.0886

Data not Normal at 5% Significance Level Data not Lognormal at 5% Significance Level

Normal Distribution Test with Detected Values Only Lognormal Distribution Test with Detected Values Only

Lilliefors Test Statistic 0.299 Lilliefors Test Statistic 0.161

Background Statistics

Minimum Non-Detect 2.5 Minimum Non-Detect 0.916

Maximum Non-Detect 2.5 Maximum Non-Detect 0.916

Mean of Detected 13.7 Mean of Detected 2.071

SD of Detected 18.57 SD of Detected 0.94

Minimum Detected 2.3 Minimum Detected 0.833

Maximum Detected 112 Maximum Detected 4.718

Tolerance Factor 2.669 Percent Non-Detects 5.66%

Raw Statistics Log-transformed Statistics

Number of Valid Data 106 Number of Detected Data 100

Number of Distinct Detected Data 82 Number of Non-Detect Data 6

Lead

General Statistics

95% WH Approx. Gamma UTL with 99% Coverage 48.4

95% HW Approx. Gamma UTL with 99% Coverage 51.01

95% WH Approx. Gamma UPL 30.94 Upper Threshold Limit Based upon IQR 35.65

95% HW Approx. Gamma UPL 31.39

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540

541

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A B C D E F G H I J K L

DL/2 Substitution Method DL/2 Substitution Method

Data not Normal at 5% Significance Level Data not Lognormal at 5% Significance Level

Assuming Normal Distribution Assuming Lognormal Distribution

Shapiro Wilk Test Statistic 0.54 Shapiro Wilk Test Statistic 0.84

5% Shapiro Wilk Critical Value 0.927 5% Shapiro Wilk Critical Value 0.927

Observations < Largest ND are treated as NDs Single DL Non-Detect Percentage 97.17%

Background Statistics

Normal Distribution Test with Detected Values Only Lognormal Distribution Test with Detected Values Only

Note: Data have multiple DLs - Use of KM Method is recommended Number treated as Non-Detect with Single DL 103

For all methods (except KM, DL/2, and ROS Methods), Number treated as Detected with Single DL 3

Data with Multiple Detection Limits Single Detection Limit Scenario

Minimum Non-Detect 0.0039 Minimum Non-Detect -5.547

Maximum Non-Detect 0.1 Maximum Non-Detect -2.303

Mean of Detected 0.0493 Mean of Detected -3.342

SD of Detected 0.0599 SD of Detected 0.71

Minimum Detected 0.0175 Minimum Detected -4.046

Maximum Detected 0.324 Maximum Detected -1.127

Tolerance Factor 2.669 Percent Non-Detects 71.70%

Raw Statistics Log-transformed Statistics

General Statistics

Number of Valid Data 106 Number of Detected Data 30

Number of Distinct Detected Data 28 Number of Non-Detect Data 76

Note: DL/2 is not a recommended method.

Mercury

95% Percentile 51.29

99% Percentile 90.15

95% WH Approx. Gamma UTL with 99% Coverage 83.28

90% Percentile 35.62 95% HW Approx. Gamma UTL with 99% Coverage 107

Nu star 96.77 95% Wilson Hilferty (WH) Approx. Gamma UPL 41.9

95% Percentile of Chisquare (2k) 3.622 95% Hawkins Wixley (HW) Approx. Gamma UPL 47.27

k star 0.456

Theta star 28.32 Gamma ROS Limits with Extrapolated Data

Median 5.7 95% Percentile (z) 42.89

SD 18.31 99% Percentile (z) 55.25

Gamma ROS Statistics with Extrapolated Data 95% KM UPL (t) 43.29

Mean 12.93 90% Percentile (z) 36.3

95% KM UTL with 99% Coverage 61.46

Assuming Gamma Distribution 95% KM Chebyshev UPL 92.48

5% K-S Critical Value 0.092 SD 18.14

Data not Gamma Distributed at 5% Significance Level SE of Mean 1.77

5% A-D Critical Value 0.782 Kaplan-Meier (KM) Method

K-S Test Statistic 0.227 Mean 13.06

A-D Test Statistic 7.995 Nonparametric Statistics

nu star 205.1

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609

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623

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627

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629

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632

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634

635

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A B C D E F G H I J K L

Number of Distinct Detected Data 16 Number of Non-Detect Data 90

Tolerance Factor 2.669 Percent Non-Detects 84.91%

Molybdenum

General Statistics

Number of Valid Data 106 Number of Detected Data 16

99% Percentile 0.357

Note: DL/2 is not a recommended method.

90% Percentile 0.117 95% HW Approx. Gamma UTL with 99% Coverage 0.575

95% Percentile 0.183

95% Percentile of Chisquare (2k) 2.635 95% Hawkins Wixley (HW) Approx. Gamma UPL 0.21

95% WH Approx. Gamma UTL with 99% Coverage 0.354

Theta star 0.139 Gamma ROS Limits with Extrapolated Data

Nu star 59.92 95% Wilson Hilferty (WH) Approx. Gamma UPL 0.16

SD 0.0429 99% Percentile (z) 0.119

k star 0.283

Mean 0.0393 90% Percentile (z) 0.0815

Median 0.0284 95% Percentile (z) 0.0945

Assuming Gamma Distribution 95% KM Chebyshev UPL 0.193

Gamma ROS Statistics with Extrapolated Data 95% KM UPL (t) 0.0953

Data not Gamma Distributed at 5% Significance Level SE of Mean 0.00443

95% KM UTL with 99% Coverage 0.131

K-S Test Statistic 0.25 Mean 0.0355

5% K-S Critical Value 0.163 SD 0.0359

A-D Test Statistic 2.521 Nonparametric Statistics

5% A-D Critical Value 0.762 Kaplan-Meier (KM) Method

nu star 90.69

Gamma Distribution Test with Detected Values Only Data Distribution Test with Detected Values Only

k star (bias corrected) 1.511 Data do not follow a Discernable Distribution (0.05)

Theta Star 0.0326

99% Percentile (z) 0.202 99% Percentile (z) 0.145

90% Percentile (z) -0.0537 90% Percentile (z) 0.0672

95% Percentile (z) 0.0354 95% Percentile (z) 0.0878

95% Bootstrap (%) UTL with 99% Coverage 0.324

95% UPL (t) 0.0409 95% UPL (t) 0.0893

95% UTL with 99% Coverage 0.286 95% UTL with 99% Coverage 0.187

95% BCA UTL with 99% Coverage 0.324

Mean -0.368 Mean in Original Scale 0.0351

SD 0.245 SD in Original Scale 0.0371

Maximum Likelihood Estimate(MLE) Method Log ROS Method

95% Percentile (z) 0.102 95% Percentile (z) 0.141

99% Percentile (z) 0.124 99% Percentile (z) 0.24

95% UPL (t) 0.103 95% UPL (t) 0.143

90% Percentile (z) 0.0899 90% Percentile (z) 0.106

SD 0.0331 SD (Log Scale) 0.782

95% UTL 99% Coverage 0.136 95% UTL 99% Coverage 0.313

Mean 0.0475 Mean (Log Scale) -3.247

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676

677

678

679

680

681

682

683

684

685

686

687

688

689

A B C D E F G H I J K L

Assuming Gamma Distribution 95% KM Chebyshev UPL 0.581

Data not Gamma Distributed at 5% Significance Level SE of Mean 0.0176

95% KM UTL with 99% Coverage 0.409

K-S Test Statistic 0.264 Mean 0.14

5% K-S Critical Value 0.216 SD 0.101

A-D Test Statistic 1.555 Nonparametric Statistics

5% A-D Critical Value 0.743 Kaplan-Meier (KM) Method

nu star 95.57

Gamma Distribution Test with Detected Values Only Data Distribution Test with Detected Values Only

k star (bias corrected) 2.987 Data do not follow a Discernable Distribution (0.05)

Theta Star 0.0639

99% Percentile (z) 0.578

90% Percentile (z) 0.234

95% Percentile (z) 0.32

95% UTL 99% Coverage 0.778

95% UPL (t) 0.327

Mean in Log Scale -2.564

SD in Log Scale 0.867

Mean in Original Scale 0.111

SD in Original Scale 0.109

Maximum Likelihood Estimate(MLE) Method N/A Log ROS Method

95% Percentile (z) 1.767 95% Percentile (z) 4.974

99% Percentile (z) 2.138 99% Percentile (z) 12.95

95% UPL (t) 1.779 95% UPL (t) 5.134

90% Percentile (z) 1.57 90% Percentile (z) 2.987

SD 0.544 SD (Log Scale) 1.404

95% UTL 99% Coverage 2.324 95% UTL 99% Coverage 20.94

DL/2 Substitution Method DL/2 Substitution Method

Mean 0.873 Mean (Log Scale) -0.704

Data not Normal at 5% Significance Level Data not Lognormal at 5% Significance Level

Assuming Normal Distribution Assuming Lognormal Distribution

Shapiro Wilk Test Statistic 0.629 Shapiro Wilk Test Statistic 0.816

5% Shapiro Wilk Critical Value 0.887 5% Shapiro Wilk Critical Value 0.887

Observations < Largest ND are treated as NDs Single DL Non-Detect Percentage 100.00%

Background Statistics

Normal Distribution Test with Detected Values Only Lognormal Distribution Test with Detected Values Only

Data with Multiple Detection Limits Single Detection Limit Scenario

Note: Data have multiple DLs - Use of KM Method is recommended Number treated as Non-Detect with Single DL 106

For all methods (except KM, DL/2, and ROS Methods), Number treated as Detected with Single DL 0

Maximum Non-Detect 2.5 Maximum Non-Detect 0.916

SD of Detected 0.136 SD of Detected 0.492

Minimum Non-Detect 0.0777 Minimum Non-Detect -2.555

Maximum Detected 0.625 Maximum Detected -0.47

Mean of Detected 0.191 Mean of Detected -1.8

Raw Statistics Log-transformed Statistics

Minimum Detected 0.0978 Minimum Detected -2.325

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690

691

692

693

694

695

696

697

698

699

700

701

702

703

704

705

706

707

708

709

710

711

712

713

714

715

716

717

718

719

720

721

722

723

724

725

726

727

728

729

730

731

732

733

734

735

736

737

738

739

740

741

742

A B C D E F G H I J K L

95% BCA UTL with 99% Coverage 27.2

SD 5.173 SD in Original Scale 4.779

95% UTL with 99% Coverage 21.11 95% UTL with 99% Coverage 29.75

Maximum Likelihood Estimate(MLE) Method Log ROS Method

Mean 7.306 Mean in Original Scale 7.586

99% Percentile (z) 18.91 99% Percentile (z) 31.05

90% Percentile (z) 13.77 90% Percentile (z) 14.86

95% Percentile (z) 15.56 95% Percentile (z) 19.2

95% UTL 99% Coverage 20.6 95% UTL 99% Coverage 39.54

95% UPL (t) 15.67 95% UPL (t) 19.5

Mean 7.466 Mean (Log Scale) 1.794

SD 4.919 SD (Log Scale) 0.706

Assuming Normal Distribution Assuming Lognormal Distribution

DL/2 Substitution Method DL/2 Substitution Method

5% Lilliefors Critical Value 0.0909 5% Lilliefors Critical Value 0.0909

Data not Normal at 5% Significance Level Data not Lognormal at 5% Significance Level

Background Statistics

Normal Distribution Test with Detected Values Only Lognormal Distribution Test with Detected Values Only

Lilliefors Test Statistic 0.194 Lilliefors Test Statistic 0.105

Maximum Non-Detect 2.5 Maximum Non-Detect 0.916

SD of Detected 4.689 SD of Detected 0.484

Minimum Non-Detect 2.5 Minimum Non-Detect 0.916

Maximum Detected 27.2 Maximum Detected 3.303

Mean of Detected 8.186 Mean of Detected 1.976

Raw Statistics Log-transformed Statistics

Minimum Detected 3 Minimum Detected 1.099

Number of Distinct Detected Data 84 Number of Non-Detect Data 11

Tolerance Factor 2.669 Percent Non-Detects 10.38%

Nickel

General Statistics

Number of Valid Data 106 Number of Detected Data 95

99% Percentile 1.17

Note: DL/2 is not a recommended method.

90% Percentile 0.252 95% HW Approx. Gamma UTL with 99% Coverage 1.667

95% Percentile 0.483

95% Percentile of Chisquare (2k) 1.522 95% Hawkins Wixley (HW) Approx. Gamma UPL 0.465

95% WH Approx. Gamma UTL with 99% Coverage 1.026

Theta star 0.635 Gamma ROS Limits with Extrapolated Data

Nu star 28.79 95% Wilson Hilferty (WH) Approx. Gamma UPL 0.384

SD 0.121 99% Percentile (z) 0.374

k star 0.136

Mean 0.0863 90% Percentile (z) 0.269

Median 0.000001 95% Percentile (z) 0.306

Gamma ROS Statistics with Extrapolated Data 95% KM UPL (t) 0.308

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743

744

745

746

747

748

749

750

751

752

753

754

755

756

757

758

759

760

761

762

763

764

765

766

767

768

769

770

771

772

773

774

775

776

777

778

779

780

781

782

783

784

785

786

787

788

789

790

791

792

793

794

795

A B C D E F G H I J K L

Number of Distinct Detected Data 8 Number of Non-Detect Data 97

Tolerance Factor 2.669 Percent Non-Detects 91.51%

Silver

General Statistics

Number of Valid Data 106 Number of Detected Data 9

Warning: Only one distinct data value was detected! ProUCL (or any other software) should not be used on such a data set!

It is suggested to use alternative site specific values determined by the Project Team to estimate environmental parameters (e.g., EPC, BTV).

The data set for variable Selenium was not processed!

General Statistics

Number of Valid Data 106 Number of Detected Data 1

Number of Distinct Detected Data 1 Number of Non-Detect Data 105

Note: DL/2 is not a recommended method.

Selenium

95% Percentile 30.67

99% Percentile 55.58

95% WH Approx. Gamma UTL with 99% Coverage 45

90% Percentile 20.79 95% HW Approx. Gamma UTL with 99% Coverage 71.44

Nu star 83.28 95% Wilson Hilferty (WH) Approx. Gamma UPL 23.91

95% Percentile of Chisquare (2k) 3.285 95% Hawkins Wixley (HW) Approx. Gamma UPL 31.7

k star 0.393

Theta star 18.68 Gamma ROS Limits with Extrapolated Data

Median 6.145 95% Percentile (z) 15.36

SD 5.097 99% Percentile (z) 18.56

Gamma ROS Statistics with Extrapolated Data 95% KM UPL (t) 15.47

Mean 7.336 90% Percentile (z) 13.66

95% KM UTL with 99% Coverage 20.17

Assuming Gamma Distribution 95% KM Chebyshev UPL 28.19

5% K-S Critical Value 0.0921 SD 4.69

Data not Gamma Distributed at 5% Significance Level SE of Mean 0.458

5% A-D Critical Value 0.756 Kaplan-Meier (KM) Method

K-S Test Statistic 0.135 Mean 7.648

A-D Test Statistic 2.313 Nonparametric Statistics

Theta Star 2.051

nu star 758.3

Gamma Distribution Test with Detected Values Only Data Distribution Test with Detected Values Only

k star (bias corrected) 3.991 Data do not follow a Discernable Distribution (0.05)

95% Percentile (z) 15.81 95% Percentile (z) 16.52

99% Percentile (z) 19.34 99% Percentile (z) 24.44

95% UPL (t) 15.93 95% UPL (t) 16.74

90% Percentile (z) 13.94 90% Percentile (z) 13.41

95% Bootstrap (%) UTL with 99% Coverage 27.2

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796

797

798

799

800

801

802

803

804

805

806

807

808

809

810

811

812

813

814

815

816

817

818

819

820

821

822

823

824

825

826

827

828

829

830

831

832

833

834

835

836

837

838

839

840

841

842

843

844

845

846

847

848

A B C D E F G H I J K L

Theta Star 0.502

nu star 20.86

Gamma Distribution Test with Detected Values Only Data Distribution Test with Detected Values Only

k star (bias corrected) 1.159 Data appear Normal at 5% Significance Level

95% Percentile (z) 0.873

99% Percentile (z) 3.445

95% UPL (t) 0.913

90% Percentile (z) 0.42

SD in Log Scale 2.015

95% UTL 99% Coverage 6.87

SD in Original Scale 0.445

Mean in Log Scale -3.451

Maximum Likelihood Estimate(MLE) Method N/A Log ROS Method

Mean in Original Scale 0.184

99% Percentile (z) 2.14 99% Percentile (z) 11.83

90% Percentile (z) 1.584 90% Percentile (z) 2.951

95% Percentile (z) 1.777 95% Percentile (z) 4.782

95% UTL 99% Coverage 2.322 95% UTL 99% Coverage 18.65

95% UPL (t) 1.789 95% UPL (t) 4.927

Mean 0.901 Mean (Log Scale) -0.622

SD 0.533 SD (Log Scale) 1.329

Assuming Normal Distribution Assuming Lognormal Distribution

DL/2 Substitution Method DL/2 Substitution Method

5% Shapiro Wilk Critical Value 0.829 5% Shapiro Wilk Critical Value 0.829

Data appear Normal at 5% Significance Level Data appear Lognormal at 5% Significance Level

Normal Distribution Test with Detected Values Only Lognormal Distribution Test with Detected Values Only

Shapiro Wilk Test Statistic 0.832 Shapiro Wilk Test Statistic 0.878

Note: It should be noted that even though bootstrap may be performed on this data set

the resulting calculations may not be reliable enough to draw conclusions

It is recommended to have 10-15 or more distinct observations for accurate and meaningful results.

Background Statistics

Observations < Largest ND are treated as NDs Single DL Non-Detect Percentage 100.00%

Warning: There are only 9 Detected Values in this data

Data with Multiple Detection Limits Single Detection Limit Scenario

Note: Data have multiple DLs - Use of KM Method is recommended Number treated as Non-Detect with Single DL 106

For all methods (except KM, DL/2, and ROS Methods), Number treated as Detected with Single DL 0

Maximum Non-Detect 2.5 Maximum Non-Detect 0.916

SD of Detected 0.469 SD of Detected 0.898

Minimum Non-Detect 0.117 Minimum Non-Detect -2.146

Maximum Detected 1.29 Maximum Detected 0.255

Mean of Detected 0.582 Mean of Detected -0.88

Raw Statistics Log-transformed Statistics

Minimum Detected 0.132 Minimum Detected -2.025

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849

850

851

852

853

854

855

856

857

858

859

860

861

862

863

864

865

866

867

868

869

870

871

872

873

874

875

876

877

878

879

880

881

882

883

884

885

886

887

888

889

890

891

892

893

894

895

896

897

898

899

900

901

A B C D E F G H I J K L

SD 7.863 SD 0.392

Coefficient of Variation 0.414

Third Quartile 22.58 Third Quartile 3.117

Mean 18.99 Mean 2.867

First Quartile 14.03 First Quartile 2.641

Median 16.65 Median 2.812

Maximum 47.1 Maximum 3.852

Second Largest 44 Second Largest 3.784

Raw Statistics Log-Transformed Statistics

Minimum 6.2 Minimum 1.825

Total Number of Observations 106 Number of Distinct Observations 86

Tolerance Factor 2.669

Vanadium

General Statistics

Warning: All observations are Non-Detects (NDs), therefore all statistics and estimates should also be NDs!

Specifically, sample mean, UCLs, UPLs, and other statistics are also NDs lying below the largest detection limit!

The Project Team may decide to use alternative site specific values to estimate environmental parameters (e.g., EPC, BTV).

The data set for variable Thallium was not processed!

General Statistics

Number of Valid Data 106 Number of Detected Data 0

Number of Distinct Detected Data 0 Number of Non-Detect Data 106

Note: DL/2 is not a recommended method.

Thallium

95% Percentile 0.857

99% Percentile 2.393

95% WH Approx. Gamma UTL with 99% Coverage 1.475

90% Percentile 0.384 95% HW Approx. Gamma UTL with 99% Coverage 1.851

Nu star 20.26 95% Wilson Hilferty (WH) Approx. Gamma UPL 0.481

95% Percentile of Chisquare (2k) 1.112 95% Hawkins Wixley (HW) Approx. Gamma UPL 0.432

k star 0.0956

Theta star 1.541 Gamma ROS Limits with Extrapolated Data

Median 0.000001 95% Percentile (z) 0.738

SD 0.335 99% Percentile (z) 0.942

Gamma ROS Statistics with Extrapolated Data 95% KM UPL (t) 0.745

Mean 0.147 90% Percentile (z) 0.63

95% KM UTL with 99% Coverage 1.044

Assuming Gamma Distribution 95% KM Chebyshev UPL 1.554

5% K-S Critical Value 0.284 SD 0.298

Data appear Gamma Distributed at 5% Significance Level SE of Mean 0.0535

5% A-D Critical Value 0.733 Kaplan-Meier (KM) Method

K-S Test Statistic 0.259 Mean 0.248

A-D Test Statistic 0.606 Nonparametric Statistics

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902

903

904

905

906

907

908

909

910

911

912

913

914

915

916

917

918

919

920

921

922

923

924

925

926

927

928

929

930

931

932

933

934

935

936

937

938

939

940

941

942

943

944

945

946

947

948

949

950

951

952

953

954

A B C D E F G H I J K L

Third Quartile 46.4 Third Quartile 3.837

First Quartile 17.7 First Quartile 2.874

Median 29.8 Median 3.395

Maximum 291 Maximum 5.673

Second Largest 172 Second Largest 5.147

Raw Statistics Log-Transformed Statistics

Minimum 9.7 Minimum 2.272

Total Number of Observations 105 Number of Distinct Observations 98

Tolerance Factor 2.671 Number of Missing Values 1

Zinc

General Statistics

95% WH Approx. Gamma UTL with 99% Coverage 44.61

95% HW Approx. Gamma UTL with 99% Coverage 45.66

95% WH Approx. Gamma UPL 32.76 Upper Threshold Limit Based upon IQR 35.4

95% HW Approx. Gamma UPL 32.96

99% Percentile 40.51 95% UPL 36.88

95% Chebyshev UPL 53.42

90% Percentile 28.96 95% Percentile Bootstrap UTL with 99% Coverage 47.1

95% Percentile 32.7 95% BCA Bootstrap UTL with 99% Coverage 47.1

Assuming Gamma Distribution 95% UTL with 99% Coverage 47.1

5% K-S Critical Value 0.088 99% Percentile 43.82

Data appear Gamma Distributed at 5% Significance Level

5% A-D Critical Value 0.754 90% Percentile 28.95

K-S Test Statistic 0.086 95% Percentile 35.55

A-D Test Statistic 0.684 Nonparametric Statistics

MLE of Standard Deviation 7.467

nu star 1371

Theta Star 2.936

MLE of Mean 18.99

Gamma Distribution Test Data Distribution Test

k star 6.467 Data appear Gamma Distributed at 5% Significance Level

95% Percentile (z) 31.92 95% Percentile (z) 33.51

99% Percentile (z) 37.28 99% Percentile (z) 43.78

95% UPL (t) 32.1 95% UPL (t) 33.81

90% Percentile (z) 29.07 90% Percentile (z) 29.06

Assuming Normal Distribution Assuming Lognormal Distribution

95% UTL with 99% Coverage 39.97 95% UTL with 99% Coverage 50.07

Lilliefors Critical Value 0.0861 Lilliefors Critical Value 0.0861

Data not Normal at 5% Significance Level Data appear Lognormal at 5% Significance Level

Normal Distribution Test Lognormal Distribution Test

Lilliefors Test Statistic 0.129 Lilliefors Test Statistic 0.0615

Skewness 1.276

Background Statistics

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955

956

957

958

959

960

961

962

963

964

965

966

967

968

969

970

971

972

973

974

975

976

977

978

979

980

981

982

983

984

985

986

987

988

989

990

991

992

993

994

995

996

A B C D E F G H I J K L

95% WH Approx. Gamma UTL with 99% Coverage 165.7

95% HW Approx. Gamma UTL with 99% Coverage 172.2

95% WH Approx. Gamma UPL 100.7 Upper Threshold Limit Based upon IQR 89.45

95% HW Approx. Gamma UPL 100.6

99% Percentile 144.1 95% UPL 117.5

95% Chebyshev UPL 219

90% Percentile 83.21 95% Percentile Bootstrap UTL with 99% Coverage 291

95% Percentile 102.1 95% BCA Bootstrap UTL with 99% Coverage 291

Assuming Gamma Distribution 95% UTL with 99% Coverage 291

5% K-S Critical Value 0.0894 99% Percentile 171.2

Data not Gamma Distributed at 5% Significance Level

5% A-D Critical Value 0.766 90% Percentile 92.1

K-S Test Statistic 0.124 95% Percentile 112.8

A-D Test Statistic 3.522 Nonparametric Statistics

MLE of Standard Deviation 30.83

nu star 390.9

Theta Star 22.6

MLE of Mean 42.07

Gamma Distribution Test Data Distribution Test

k star 1.862 Data do not follow a Discernable Distribution (0.05)

95% Percentile (z) 108.5 95% Percentile (z) 100.8

99% Percentile (z) 136 99% Percentile (z) 162.9

95% UPL (t) 109.4 95% UPL (t) 102.5

90% Percentile (z) 93.83 90% Percentile (z) 78.07

Assuming Normal Distribution Assuming Lognormal Distribution

95% UTL with 99% Coverage 149.9 95% UTL with 99% Coverage 207.6

Lilliefors Critical Value 0.0865 Lilliefors Critical Value 0.0865

Data not Normal at 5% Significance Level Data not Lognormal at 5% Significance Level

Normal Distribution Test Lognormal Distribution Test

Lilliefors Test Statistic 0.224 Lilliefors Test Statistic 0.1

Skewness 3.14

Background Statistics

SD 40.39 SD 0.704

Coefficient of Variation 0.96

Mean 42.07 Mean 3.455

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1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

32

33

34

35

36

37

38

39

40

41

42

43

44

45

46

47

48

49

50

51

52

A B C D E F G H I J K L

95% Percentile (z) 0.0601 95% Percentile (z) 0.0227

99% Percentile (z) 0.0868 99% Percentile (z) 0.0796

95% UPL (t) 0.0629 95% UPL (t) 0.0258

90% Percentile (z) 0.0459 90% Percentile (z) 0.0116

95% BCA UTL with 99% Coverage 0.179

95% Bootstrap (%) UTL with 99% Coverage 0.179

SD 0.0392 SD in Original Scale 0.0301

95% UTL with 99% Coverage 0.113 95% UTL with 99% Coverage 0.267

Maximum Likelihood Estimate(MLE) Method Log ROS Method

Mean -0.00432 Mean in Original Scale 0.00774

99% Percentile (z) 0.0779 99% Percentile (z) 0.0367

90% Percentile (z) 0.0464 90% Percentile (z) 0.00921

95% Percentile (z) 0.0574 95% Percentile (z) 0.0149

95% UTL 99% Coverage 0.0977 95% UTL 99% Coverage 0.0874

95% UPL (t) 0.0595 95% UPL (t) 0.0163

Mean 0.00785 Mean (Log Scale) -6.382

SD 0.0301 SD (Log Scale) 1.322

Assuming Normal Distribution Assuming Lognormal Distribution

DL/2 Substitution Method DL/2 Substitution Method

5% Shapiro Wilk Critical Value 0.911 5% Shapiro Wilk Critical Value 0.911

Data not Normal at 5% Significance Level Data not Lognormal at 5% Significance Level

Background Statistics

Normal Distribution Test with Detected Values Only Lognormal Distribution Test with Detected Values Only

Shapiro Wilk Test Statistic 0.303 Shapiro Wilk Test Statistic 0.823

Maximum Non-Detect 0.00106 Maximum Non-Detect -6.849

SD of Detected 0.0376 SD of Detected 1.226

Minimum Non-Detect 0.00106 Minimum Non-Detect -6.849

Maximum Detected 0.179 Maximum Detected -1.718

Mean of Detected 0.0122 Mean of Detected -5.696

Raw Statistics Log-transformed Statistics

Minimum Detected 0.00106 Minimum Detected -6.849

Number of Distinct Detected Data 22 Number of Non-Detect Data 13

Tolerance Factor 2.983 Percent Non-Detects 37.14%

BaP-TEQ

General Statistics

Number of Valid Data 35 Number of Detected Data 22

Different or Future K Values 1

Number of Bootstrap Operations 2000

Full Precision OFF

Confidence Coefficient 95%

Coverage 99%

General Background Statistics for Data Sets with Non-Detects

User Selected Options

From File C:\Users\atesfamichael\Desktop\SB0484 KAST\Feb 2012 Analysis\July 2012 Reporting\PAH 0 to 5 wo outliers.w

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53

54

55

56

57

58

59

60

61

62

63

64

65

66

67

68

69

70

71

72

73

74

75

76

77

78

79

80

A B C D E F G H I J K L

Note: DL/2 is not a recommended method.

95% Percentile 0.0397

99% Percentile 0.0854

95% WH Approx. Gamma UTL with 99% Coverage 0.0823

90% Percentile 0.0231 95% HW Approx. Gamma UTL with 99% Coverage 0.111

Nu star 13.67 95% Wilson Hilferty (WH) Approx. Gamma UPL 0.0259

95% Percentile of Chisquare (2k) 2.025 95% Hawkins Wixley (HW) Approx. Gamma UPL 0.0269

k star 0.195

Theta star 0.0392 Gamma ROS Limits with Extrapolated Data

Median 0.00127 95% Percentile (z) 0.0568

SD 0.0302 99% Percentile (z) 0.077

Gamma ROS Statistics with Extrapolated Data 95% KM UPL (t) 0.0589

Mean 0.00765 90% Percentile (z) 0.046

95% KM UTL with 99% Coverage 0.0965

Assuming Gamma Distribution 95% KM Chebyshev UPL 0.139

5% K-S Critical Value 0.196 SD 0.0296

Data not Gamma Distributed at 5% Significance Level SE of Mean 0.00513

5% A-D Critical Value 0.806 Kaplan-Meier (KM) Method

K-S Test Statistic 0.307 Mean 0.00805

A-D Test Statistic 3.184 Nonparametric Statistics

Theta Star 0.0266

nu star 20.11

Gamma Distribution Test with Detected Values Only Data Distribution Test with Detected Values Only

k star (bias corrected) 0.457 Data do not follow a Discernable Distribution (0.05)

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SB0484\SSCGs_AppendixA_Oct2013.docx October 2013

ATTACHMENT A3 Soil Leaching to Groundwater SSCG Derivation Spreadsheets

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Geosyntec Consultants 1 of 1 Attachment A3.xlsx

Attachment A3Determining Soil Cleanup Levels, LARWQCB Approach

Former Kast PropertyCarson, CA

Compound: Benzene

Soil lithology:% gravel % sand % silt % clay TOTAL

LITHOLOGY: 100% 100%

CHEMICAL MCL (mg/L): 1.0E-03 ESL

AF CalculationSource

ρb 1.54 Site-specificn 0.421 Site-specific

qw 0.239 Site-specificfoc 0.83% Site-specificKoc -- Value not usedKd 2.8E+01 Site-specificKh 2.3E-01 USEPA RSL

Result Table

DEPTH (D) (ft) above GW

DEPTH FACTOR (AFd)

TOTAL ATTENUATIO

N FACTOR (AFt)

SOIL CLEAN UP LEVEL

(mg/kg)50 33 33 1.3E-0145 25 25 1.0E-0140 18 18 7.3E-0235 16 16 6.4E-0230 14 14 5.6E-0225 12 12 4.7E-0224 11 11 4.5E-0223 11 11 4.4E-0222 10 10 4.2E-0221 10 10 4.0E-0220 10 10 3.9E-0219 9 9 3.7E-0218 9 9 3.5E-0217 8 8 3.3E-0216 8 8 3.2E-0215 7 7 3.0E-0214 7 7 2.8E-0213 7 7 2.6E-0212 6 6 2.5E-0211 6 6 2.3E-0210 5 5 2.1E-025 3 3 1.3E-020 1 1 4.1E-03

Notes:AF = 1 + (rb/qw)*foc*Koc +(n-qw)*KH/qwD = Depth of Contaminant above the groundwater levelAFd = D(0.1*AF - 1)/40 + 1 - Eqn. 7. For depths less than or equal to 40 feet.AFd = (0.9(D-40)/110+0.1)AF - Eqn. 6. For depths 40<D<150 feet.AFt = (AFd/D)*(TGR/20+TSA/10+TSI/5+TCL) - Eqn. 12Soil Cleanup Level = C = Aft x MCL - Eqn. 13

Henry's Law Constant (-)

Chemical-Specific Attenuation Factor AF 180

Dilution Attenuation Factor DAF 6

Soil/Water Partition Coeff. (mL/g)

Soil density (g/cm3)porosity (-)water content (-)fract. Org. carbon (-)Org. carbon/water Partition Coeff. (mL/g)

Page 182: Table Proposed Cleanup Levels Groundwater · 10/21/2013  · Table 04 Summery of PrsllMnery Cost ES11motee for Soleening Feasibility Study Former Kest Property Carson, CA GeotFnlenGOneullanle

Geosyntec Consultants 1 of 1 Attachment A3.xlsx

Attachment A3Determining Soil Cleanup Levels, LARWQCB Approach

Former Kast PropertyCarson, CA

Compound: Naphthalene

Soil lithology:% gravel % sand % silt % clay TOTAL

LITHOLOGY: 100% 100%

CHEMICAL CDPH NL (mg/L): 1.7E-02 ESL

AF CalculationSource

ρb 1.54 Site-specificn 0.421 Site-specific

qw 0.239 Site-specificfoc 0.83% Site-specificKoc -- Value not usedKd 1.1E+03 Site-specificKh 1.8E-02 USEPA RSL

Result Table

DEPTH (D) (ft) above GW

DEPTH FACTOR (AFd)

TOTAL ATTENUATIO

N FACTOR (AFt)

SOIL CLEAN UP LEVEL

(mg/kg)50 1281 1281 8.8E+0145 993 993 6.8E+0140 705 705 4.9E+0135 617 617 4.2E+0130 529 529 3.6E+0125 441 441 3.0E+0124 423 423 2.9E+0123 406 406 2.8E+0122 388 388 2.7E+0121 370 370 2.6E+0120 353 353 2.4E+0119 335 335 2.3E+0118 318 318 2.2E+0117 300 300 2.1E+0116 282 282 1.9E+0115 265 265 1.8E+0114 247 247 1.7E+0113 230 230 1.6E+0112 212 212 1.5E+0111 194 194 1.3E+0110 177 177 1.2E+015 89 89 6.1E+000 1 1 8.1E-02

Notes:AF = 1 + (rb/qw)*foc*Koc +(n-qw)*KH/qwD = Depth of Contaminant above the groundwater levelAFd = D(0.1*AF - 1)/40 + 1 - Eqn. 7. For depths less than or equal to 40 feet.AFd = (0.9(D-40)/110+0.1)AF - Eqn. 6. For depths 40<D<150 feet.AFt = (AFd/D)*(TGR/20+TSA/10+TSI/5+TCL) - Eqn. 12Soil Cleanup Level = C = Aft x MCL - Eqn. 13

Henry's Law Constant (-)

Chemical-Specific Attenuation Factor AF 7,045

Dilution Attenuation Factor DAF 6

Soil/Water Partition Coeff. (mL/g)

Soil density (g/cm3)porosity (-)water content (-)fract. Org. carbon (-)Org. carbon/water Partition Coeff. (mL/g)

Page 183: Table Proposed Cleanup Levels Groundwater · 10/21/2013  · Table 04 Summery of PrsllMnery Cost ES11motee for Soleening Feasibility Study Former Kest Property Carson, CA GeotFnlenGOneullanle

Geosyntec Consultants 1 of 1 Attachment A3.xlsx

Attachment A3Determining Soil Cleanup Levels, LARWQCB Approach

Former Kast PropertyCarson, CA

Compound: TPH as Diesel

Soil lithology:% gravel % sand % silt % clay TOTAL

LITHOLOGY: 100% 100%

CHEMICAL ESL-nc (mg/L): 2.0E-01

AF CalculationSource

ρb 1.54 Site-specificn 0.421 Site-specific

qw 0.239 Site-specificfoc 0.83% Site-specificKoc -- Value not usedKd 4.1E+03 Site-specificKh 1.7E-05 TPHCWG 1997

Result Table

DEPTH (D) (ft) above GW

DEPTH FACTOR (AFd)

TOTAL ATTENUATIO

N FACTOR (AFt)

SOIL CLEAN UP LEVEL

(mg/kg)50 4825 4825 3.9E+0345 3740 3740 3.0E+0340 2654 2654 2.2E+0335 2322 2322 1.9E+0330 1991 1991 1.6E+0325 1659 1659 1.3E+0324 1593 1593 1.3E+0323 1526 1526 1.2E+0322 1460 1460 1.2E+0321 1394 1394 1.1E+0320 1327 1327 1.1E+0319 1261 1261 1.0E+0318 1195 1195 9.7E+0217 1129 1129 9.1E+0216 1062 1062 8.6E+0215 996 996 8.1E+0214 930 930 7.5E+0213 863 863 7.0E+0212 797 797 6.5E+0211 731 731 5.9E+0210 664 664 5.4E+025 333 333 2.7E+020 2 2 1.3E+00

Notes:AF = 1 + (rb/qw)*foc*Koc +(n-qw)*KH/qwD = Depth of Contaminant above the groundwater levelAFd = D(0.1*AF - 1)/40 + 1 - Eqn. 7. For depths less than or equal to 40 feet.AFd = (0.9(D-40)/110+0.1)AF - Eqn. 6. For depths 40<D<150 feet.AFt = (AFd/D)*(TGR/20+TSA/10+TSI/5+TCL) - Eqn. 12Soil Cleanup Level = C = Aft x MCL - Eqn. 13

Henry's Law Constant (-)

Chemical-Specific Attenuation Factor AF 26,540

Dilution Attenuation Factor DAF 6

Soil/Water Partition Coeff. (mL/g)

Soil density (g/cm3)porosity (-)water content (-)fract. Org. carbon (-)Org. carbon/water Partition Coeff. (mL/g)

Page 184: Table Proposed Cleanup Levels Groundwater · 10/21/2013  · Table 04 Summery of PrsllMnery Cost ES11motee for Soleening Feasibility Study Former Kest Property Carson, CA GeotFnlenGOneullanle

Geosyntec Consultants 1 of 1 Attachment A3.xlsx

Attachment A3Determining Soil Cleanup Levels, LARWQCB Approach

Former Kast PropertyCarson, CA

Compound: TPH as Gasoline

Soil lithology:% gravel % sand % silt % clay TOTAL

LITHOLOGY: 100% 100%

CHEMICAL ESL-nc (mg/L): 4.1E-01

AF CalculationSource

ρb 1.54 Site-specificn 0.421 Site-specific

qw 0.239 Site-specificfoc 0.83% Site-specificKoc -- Value not usedKd 3.7E+02 Site-specificKh 1.7E-05 TPHCWG 1997

Result Table

DEPTH (D) (ft) above GW

DEPTH FACTOR (AFd)

TOTAL ATTENUATIO

N FACTOR (AFt)

SOIL CLEAN UP LEVEL

(mg/kg)50 438 438 7.3E+0245 340 340 5.6E+0240 241 241 4.0E+0235 211 211 3.5E+0230 181 181 3.0E+0225 151 151 2.5E+0224 145 145 2.4E+0223 139 139 2.3E+0222 133 133 2.2E+0221 127 127 2.1E+0220 121 121 2.0E+0219 115 115 1.9E+0218 109 109 1.8E+0217 103 103 1.7E+0216 97 97 1.6E+0215 91 91 1.5E+0214 85 85 1.4E+0213 79 79 1.3E+0212 73 73 1.2E+0211 67 67 1.1E+0210 61 61 1.0E+025 31 31 5.2E+010 1 1 1.8E+00

Notes:AF = 1 + (rb/qw)*foc*Koc +(n-qw)*KH/qwD = Depth of Contaminant above the groundwater levelAFd = D(0.1*AF - 1)/40 + 1 - Eqn. 7. For depths less than or equal to 40 feet.AFd = (0.9(D-40)/110+0.1)AF - Eqn. 6. For depths 40<D<150 feet.AFt = (AFd/D)*(TGR/20+TSA/10+TSI/5+TCL) - Eqn. 12Soil Cleanup Level = C = Aft x MCL - Eqn. 13

Henry's Law Constant (-)

Chemical-Specific Attenuation Factor AF 2,410

Dilution Attenuation Factor DAF 6

Soil/Water Partition Coeff. (mL/g)

Soil density (g/cm3)porosity (-)water content (-)fract. Org. carbon (-)Org. carbon/water Partition Coeff. (mL/g)

Page 185: Table Proposed Cleanup Levels Groundwater · 10/21/2013  · Table 04 Summery of PrsllMnery Cost ES11motee for Soleening Feasibility Study Former Kest Property Carson, CA GeotFnlenGOneullanle

Geosyntec Consultants 1 of 1 Attachment A3.xlsx

Attachment A3Determining Soil Cleanup Levels, LARWQCB Approach

Former Kast PropertyCarson, CA

Compound: TPH as Motor Oil

Soil lithology:% gravel % sand % silt % clay TOTAL

LITHOLOGY: 100% 100%

CHEMICAL ESL-nc (mg/L): 6.2E+00

AF CalculationSource

ρb 1.54 Site-specificn 0.421 Site-specific

qw 0.239 Site-specificfoc 0.83% Site-specificKoc -- Value not usedKd 7.0E+03 Site-specificKh 1.7E-05 TPHCWG 1997

Result Table

DEPTH (D) (ft) above GW

DEPTH FACTOR (AFd)

TOTAL ATTENUATIO

N FACTOR (AFt)

SOIL CLEAN UP LEVEL

(mg/kg)50 8151 8151 2.0E+0545 6317 6317 1.6E+0540 4483 4483 1.1E+0535 3923 3923 9.9E+0430 3363 3363 8.4E+0425 2802 2802 7.0E+0424 2690 2690 6.8E+0423 2578 2578 6.5E+0422 2466 2466 6.2E+0421 2354 2354 5.9E+0420 2242 2242 5.6E+0419 2130 2130 5.4E+0418 2018 2018 5.1E+0417 1906 1906 4.8E+0416 1794 1794 4.5E+0415 1682 1682 4.2E+0414 1570 1570 3.9E+0413 1458 1458 3.7E+0412 1346 1346 3.4E+0411 1234 1234 3.1E+0410 1122 1122 2.8E+045 561 561 1.4E+040 2 2 5.3E+01

Notes:AF = 1 + (rb/qw)*foc*Koc +(n-qw)*KH/qwD = Depth of Contaminant above the groundwater levelAFd = D(0.1*AF - 1)/40 + 1 - Eqn. 7. For depths less than or equal to 40 feet.AFd = (0.9(D-40)/110+0.1)AF - Eqn. 6. For depths 40<D<150 feet.AFt = (AFd/D)*(TGR/20+TSA/10+TSI/5+TCL) - Eqn. 12Soil Cleanup Level = C = Aft x MCL - Eqn. 13

Henry's Law Constant (-)

Chemical-Specific Attenuation Factor AF 44,831

Dilution Attenuation Factor DAF 6

Soil/Water Partition Coeff. (mL/g)

Soil density (g/cm3)porosity (-)water content (-)fract. Org. carbon (-)Org. carbon/water Partition Coeff. (mL/g)

Page 186: Table Proposed Cleanup Levels Groundwater · 10/21/2013  · Table 04 Summery of PrsllMnery Cost ES11motee for Soleening Feasibility Study Former Kest Property Carson, CA GeotFnlenGOneullanle

Geosyntec Consultants 1 of 1 Attachment A3.xlsx

Attachment A3Determining Soil Cleanup Levels, LARWQCB Approach

Former Kast PropertyCarson, CA

Compound: 1,2,3-Trichloropropane

Soil lithology:% gravel % sand % silt % clay TOTAL

LITHOLOGY: 100% 100%

CHEMICAL CDPH NL (mg/L): 5.0E-06 no value from MCL or ESL

AF CalculationSource

ρb 1.54 Site-specificn 0.421 Site-specific

qw 0.239 Site-specificfoc 0.83% Site-specificKoc 1.2E+02 USEPA RSLKd 9.6E-01 Kd = Koc × focKh 1.4E-02 USEPA RSL

Result Table

DEPTH (D) (ft) above GW

DEPTH FACTOR (AFd)

TOTAL ATTENUATIO

N FACTOR (AFt)

SOIL CLEAN UP LEVEL

(mg/kg)50 1 1 2.6E-0545 1 1 2.0E-0540 1 1 2.0E-0535 1 1 2.0E-0530 1 1 2.0E-0525 1 1 2.0E-0524 1 1 2.0E-0523 1 1 2.0E-0522 1 1 2.0E-0521 1 1 2.0E-0520 1 1 2.0E-0519 1 1 2.0E-0518 1 1 2.0E-0517 1 1 2.0E-0516 1 1 2.0E-0515 1 1 2.0E-0514 1 1 2.0E-0513 1 1 2.0E-0512 1 1 2.0E-0511 1 1 2.0E-0510 1 1 2.0E-055 1 1 2.0E-050 1 1 2.0E-05

Notes:AF = 1 + (rb/qw)*foc*Koc +(n-qw)*KH/qwD = Depth of Contaminant above the groundwater levelAFd = D(0.1*AF - 1)/40 + 1 - Eqn. 7. For depths less than or equal to 40 feet.AFd = (0.9(D-40)/110+0.1)AF - Eqn. 6. For depths 40<D<150 feet.AFt = (AFd/D)*(TGR/20+TSA/10+TSI/5+TCL) - Eqn. 12Soil Cleanup Level = C = Aft x MCL - Eqn. 13

Soil/Water Partition Coeff. (mL/g)

Soil density (g/cm3)porosity (-)water content (-)fract. Org. carbon (-)Org. carbon/water Partition Coeff. (mL/g)

Henry's Law Constant (-)

Chemical-Specific Attenuation Factor AF 7

Dilution Attenuation Factor DAF 6

Page 187: Table Proposed Cleanup Levels Groundwater · 10/21/2013  · Table 04 Summery of PrsllMnery Cost ES11motee for Soleening Feasibility Study Former Kest Property Carson, CA GeotFnlenGOneullanle

Geosyntec Consultants 1 of 1 Attachment A3.xlsx

Attachment A3Determining Soil Cleanup Levels, LARWQCB Approach

Former Kast PropertyCarson, CA

Compound: 1,2-Dichloroethane

Soil lithology:% gravel % sand % silt % clay TOTAL

LITHOLOGY: 100% 100%

CHEMICAL MCL (mg/L): 5.0E-04

AF CalculationSource

ρb 1.54 Site-specificn 0.421 Site-specific

qw 0.239 Site-specificfoc 0.83% Site-specificKoc 4.0E+01 USEPA RSLKd 3.3E-01 Kd = Koc × focKh 4.8E-02 USEPA RSL

Result Table

DEPTH (D) (ft) above GW

DEPTH FACTOR (AFd)

TOTAL ATTENUATIO

N FACTOR (AFt)

SOIL CLEAN UP LEVEL

(mg/kg)50 1 1 2.0E-0345 1 1 2.0E-0340 1 1 2.0E-0335 1 1 2.0E-0330 1 1 2.0E-0325 1 1 2.0E-0324 1 1 2.0E-0323 1 1 2.0E-0322 1 1 2.0E-0321 1 1 2.0E-0320 1 1 2.0E-0319 1 1 2.0E-0318 1 1 2.0E-0317 1 1 2.0E-0316 1 1 2.0E-0315 1 1 2.0E-0314 1 1 2.0E-0313 1 1 2.0E-0312 1 1 2.0E-0311 1 1 2.0E-0310 1 1 2.0E-035 1 1 2.0E-030 1 1 2.0E-03

Notes:AF = 1 + (rb/qw)*foc*Koc +(n-qw)*KH/qwD = Depth of Contaminant above the groundwater levelAFd = D(0.1*AF - 1)/40 + 1 - Eqn. 7. For depths less than or equal to 40 feet.AFd = (0.9(D-40)/110+0.1)AF - Eqn. 6. For depths 40<D<150 feet.AFt = (AFd/D)*(TGR/20+TSA/10+TSI/5+TCL) - Eqn. 12Soil Cleanup Level = C = Aft x MCL - Eqn. 13

Soil/Water Partition Coeff. (mL/g)

Soil density (g/cm3)porosity (-)water content (-)fract. Org. carbon (-)Org. carbon/water Partition Coeff. (mL/g)

Henry's Law Constant (-)

Chemical-Specific Attenuation Factor AF 3

Dilution Attenuation Factor DAF 6

Page 188: Table Proposed Cleanup Levels Groundwater · 10/21/2013  · Table 04 Summery of PrsllMnery Cost ES11motee for Soleening Feasibility Study Former Kest Property Carson, CA GeotFnlenGOneullanle

Geosyntec Consultants 1 of 1 Attachment A3.xlsx

Attachment A3Determining Soil Cleanup Levels, LARWQCB Approach

Former Kast PropertyCarson, CA

Compound: 1,4-Dichlorobenzene

Soil lithology:% gravel % sand % silt % clay TOTAL

LITHOLOGY: 100% 100%

CHEMICAL MCL (mg/L): 5.0E-03 MCL

AF CalculationSource

ρb 1.54 Site-specificn 0.421 Site-specific

qw 0.239 Site-specificfoc 0.83% Site-specificKoc 3.8E+02 USEPA RSLKd 3.1E+00 Kd = Koc × focKh 9.9E-02 USEPA RSL

Result Table

DEPTH (D) (ft) above GW

DEPTH FACTOR (AFd)

TOTAL ATTENUATIO

N FACTOR (AFt)

SOIL CLEAN UP LEVEL

(mg/kg)50 4 4 7.7E-0245 3 3 6.0E-0240 2 2 4.3E-0235 2 2 4.0E-0230 2 2 3.7E-0225 2 2 3.4E-0224 2 2 3.4E-0223 2 2 3.3E-0222 2 2 3.3E-0221 2 2 3.2E-0220 2 2 3.1E-0219 2 2 3.1E-0218 1 1 3.0E-0217 1 1 3.0E-0216 1 1 2.9E-0215 1 1 2.9E-0214 1 1 2.8E-0213 1 1 2.8E-0212 1 1 2.7E-0211 1 1 2.6E-0210 1 1 2.6E-025 1 1 2.3E-020 1 1 2.0E-02

Notes:AF = 1 + (rb/qw)*foc*Koc +(n-qw)*KH/qwD = Depth of Contaminant above the groundwater levelAFd = D(0.1*AF - 1)/40 + 1 - Eqn. 7. For depths less than or equal to 40 feet.AFd = (0.9(D-40)/110+0.1)AF - Eqn. 6. For depths 40<D<150 feet.AFt = (AFd/D)*(TGR/20+TSA/10+TSI/5+TCL) - Eqn. 12Soil Cleanup Level = C = Aft x MCL - Eqn. 13

Soil/Water Partition Coeff. (mL/g)

Soil density (g/cm3)porosity (-)water content (-)fract. Org. carbon (-)Org. carbon/water Partition Coeff. (mL/g)

Henry's Law Constant (-)

Chemical-Specific Attenuation Factor AF 21

Dilution Attenuation Factor DAF 6

Page 189: Table Proposed Cleanup Levels Groundwater · 10/21/2013  · Table 04 Summery of PrsllMnery Cost ES11motee for Soleening Feasibility Study Former Kest Property Carson, CA GeotFnlenGOneullanle

Geosyntec Consultants 1 of 1 Attachment A3.xlsx

Attachment A3Determining Soil Cleanup Levels, LARWQCB Approach

Former Kast PropertyCarson, CA

Compound: cis-1,2-dichloroethylene

Soil lithology:% gravel % sand % silt % clay TOTAL

LITHOLOGY: 100% 100%

CHEMICAL MCL (mg/L): 6.0E-03

AF CalculationSource

ρb 1.54 Site-specificn 0.421 Site-specific

qw 0.239 Site-specificfoc 0.83% Site-specificKoc 4.0E+01 USEPA RSLKd 3.3E-01 Kd = Koc × focKh 1.7E-01 USEPA RSL

Result Table

DEPTH (D) (ft) above GW

DEPTH FACTOR (AFd)

TOTAL ATTENUATIO

N FACTOR (AFt)

SOIL CLEAN UP LEVEL

(mg/kg)50 1 1 2.4E-0245 1 1 2.4E-0240 1 1 2.4E-0235 1 1 2.4E-0230 1 1 2.4E-0225 1 1 2.4E-0224 1 1 2.4E-0223 1 1 2.4E-0222 1 1 2.4E-0221 1 1 2.4E-0220 1 1 2.4E-0219 1 1 2.4E-0218 1 1 2.4E-0217 1 1 2.4E-0216 1 1 2.4E-0215 1 1 2.4E-0214 1 1 2.4E-0213 1 1 2.4E-0212 1 1 2.4E-0211 1 1 2.4E-0210 1 1 2.4E-025 1 1 2.4E-020 1 1 2.4E-02

Notes:AF = 1 + (rb/qw)*foc*Koc +(n-qw)*KH/qwD = Depth of Contaminant above the groundwater levelAFd = D(0.1*AF - 1)/40 + 1 - Eqn. 7. For depths less than or equal to 40 feet.AFd = (0.9(D-40)/110+0.1)AF - Eqn. 6. For depths 40<D<150 feet.AFt = (AFd/D)*(TGR/20+TSA/10+TSI/5+TCL) - Eqn. 12Soil Cleanup Level = C = Aft x MCL - Eqn. 13

Soil/Water Partition Coeff. (mL/g)

Soil density (g/cm3)porosity (-)water content (-)fract. Org. carbon (-)Org. carbon/water Partition Coeff. (mL/g)

Henry's Law Constant (-)

Chemical-Specific Attenuation Factor AF 3

Dilution Attenuation Factor DAF 6

Page 190: Table Proposed Cleanup Levels Groundwater · 10/21/2013  · Table 04 Summery of PrsllMnery Cost ES11motee for Soleening Feasibility Study Former Kest Property Carson, CA GeotFnlenGOneullanle

Geosyntec Consultants 1 of 1 Attachment A3.xlsx

Attachment A3Determining Soil Cleanup Levels, LARWQCB Approach

Former Kast PropertyCarson, CA

Compound: tert-butyl alcohol

Soil lithology:% gravel % sand % silt % clay TOTAL

LITHOLOGY: 100% 100%

CHEMICAL CDPH NL (mg/L): 1.2E-02

AF CalculationSource

ρb 1.54 Site-specificn 0.421 Site-specific

qw 0.239 Site-specificfoc 0.83% Site-specificKoc 3.7E+01 Toxnet, NIHKd 3.5E-02 Kd = Koc × focKh 3.7E-04 SRC PhysProp Database

Result Table

DEPTH (D) (ft) above GW

DEPTH FACTOR (AFd)

TOTAL ATTENUATIO

N FACTOR (AFt)

SOIL CLEAN UP LEVEL

(mg/kg)50 1 1 4.9E-0245 1 1 4.9E-0240 1 1 4.9E-0235 1 1 4.9E-0230 1 1 4.9E-0225 1 1 4.9E-0224 1 1 4.9E-0223 1 1 4.9E-0222 1 1 4.9E-0221 1 1 4.9E-0220 1 1 4.9E-0219 1 1 4.9E-0218 1 1 4.9E-0217 1 1 4.9E-0216 1 1 4.9E-0215 1 1 4.9E-0214 1 1 4.9E-0213 1 1 4.9E-0212 1 1 4.9E-0211 1 1 4.9E-0210 1 1 4.9E-025 1 1 4.9E-020 1 1 4.9E-02

Notes:AF = 1 + (rb/qw)*foc*Koc +(n-qw)*KH/qwD = Depth of Contaminant above the groundwater levelAFd = D(0.1*AF - 1)/40 + 1 - Eqn. 7. For depths less than or equal to 40 feet.AFd = (0.9(D-40)/110+0.1)AF - Eqn. 6. For depths 40<D<150 feet.AFt = (AFd/D)*(TGR/20+TSA/10+TSI/5+TCL) - Eqn. 12Soil Cleanup Level = C = Aft x MCL - Eqn. 13

Soil/Water Partition Coeff. (mL/g)

Soil density (g/cm3)porosity (-)water content (-)fract. Org. carbon (-)Org. carbon/water Partition Coeff. (mL/g)

Henry's Law Constant (-)

Chemical-Specific Attenuation Factor AF 1

Dilution Attenuation Factor DAF 6

Page 191: Table Proposed Cleanup Levels Groundwater · 10/21/2013  · Table 04 Summery of PrsllMnery Cost ES11motee for Soleening Feasibility Study Former Kest Property Carson, CA GeotFnlenGOneullanle

Geosyntec Consultants 1 of 1 Attachment A3.xlsx

Attachment A3Determining Soil Cleanup Levels, LARWQCB Approach

Former Kast PropertyCarson, CA

Compound: Tetrachloroethene

Soil lithology:% gravel % sand % silt % clay TOTAL

LITHOLOGY: 100% 100%

CHEMICAL MCL (mg/L): 5.0E-03

AF CalculationSource

ρb 1.54 Site-specificn 0.421 Site-specific

qw 0.239 Site-specificfoc 0.83% Site-specificKoc 1.6E+02 USEPA RSLKd 1.3E+00 Kd = Koc × focKh 7.5E-01 USEPA RSL

Result Table

DEPTH (D) (ft) above GW

DEPTH FACTOR (AFd)

TOTAL ATTENUATIO

N FACTOR (AFt)

SOIL CLEAN UP LEVEL

(mg/kg)50 2 2 3.6E-0245 1 1 2.8E-0240 1 1 2.0E-0235 1 1 2.0E-0230 1 1 2.0E-0225 1 1 2.0E-0224 1 1 2.0E-0223 1 1 2.0E-0222 1 1 2.0E-0221 1 1 2.0E-0220 1 1 2.0E-0219 1 1 2.0E-0218 1 1 2.0E-0217 1 1 2.0E-0216 1 1 2.0E-0215 1 1 2.0E-0214 1 1 2.0E-0213 1 1 2.0E-0212 1 1 2.0E-0211 1 1 2.0E-0210 1 1 2.0E-025 1 1 2.0E-020 1 1 2.0E-02

Notes:AF = 1 + (rb/qw)*foc*Koc +(n-qw)*KH/qwD = Depth of Contaminant above the groundwater levelAFd = D(0.1*AF - 1)/40 + 1 - Eqn. 7. For depths less than or equal to 40 feet.AFd = (0.9(D-40)/110+0.1)AF - Eqn. 6. For depths 40<D<150 feet.AFt = (AFd/D)*(TGR/20+TSA/10+TSI/5+TCL) - Eqn. 12Soil Cleanup Level = C = Aft x MCL - Eqn. 13

Soil/Water Partition Coeff. (mL/g)

Soil density (g/cm3)porosity (-)water content (-)fract. Org. carbon (-)Org. carbon/water Partition Coeff. (mL/g)

Henry's Law Constant (-)

Chemical-Specific Attenuation Factor AF 10

Dilution Attenuation Factor DAF 6

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Geosyntec Consultants 1 of 1 Attachment A3.xlsx

Attachment A3Determining Soil Cleanup Levels, LARWQCB Approach

Former Kast PropertyCarson, CA

Compound: Trichloroethene

Soil lithology:% gravel % sand % silt % clay TOTAL

LITHOLOGY: 100% 100%

CHEMICAL MCL (mg/L): 5.0E-03

AF CalculationSource

ρb 1.54 Site-specificn 0.421 Site-specific

qw 0.239 Site-specificfoc 0.83% Site-specificKoc 6.1E+01 USEPA RSLKd 5.0E-01 Kd = Koc × focKh 4.0E-01 USEPA RSL

Result Table

DEPTH (D) (ft) above GW

DEPTH FACTOR (AFd)

TOTAL ATTENUATIO

N FACTOR (AFt)

SOIL CLEAN UP LEVEL

(mg/kg)50 1 1 2.0E-0245 1 1 2.0E-0240 1 1 2.0E-0235 1 1 2.0E-0230 1 1 2.0E-0225 1 1 2.0E-0224 1 1 2.0E-0223 1 1 2.0E-0222 1 1 2.0E-0221 1 1 2.0E-0220 1 1 2.0E-0219 1 1 2.0E-0218 1 1 2.0E-0217 1 1 2.0E-0216 1 1 2.0E-0215 1 1 2.0E-0214 1 1 2.0E-0213 1 1 2.0E-0212 1 1 2.0E-0211 1 1 2.0E-0210 1 1 2.0E-025 1 1 2.0E-020 1 1 2.0E-02

Notes:AF = 1 + (rb/qw)*foc*Koc +(n-qw)*KH/qwD = Depth of Contaminant above the groundwater levelAFd = D(0.1*AF - 1)/40 + 1 - Eqn. 7. For depths less than or equal to 40 feet.AFd = (0.9(D-40)/110+0.1)AF - Eqn. 6. For depths 40<D<150 feet.AFt = (AFd/D)*(TGR/20+TSA/10+TSI/5+TCL) - Eqn. 12Soil Cleanup Level = C = Aft x MCL - Eqn. 13

Soil/Water Partition Coeff. (mL/g)

Soil density (g/cm3)porosity (-)water content (-)fract. Org. carbon (-)Org. carbon/water Partition Coeff. (mL/g)

Henry's Law Constant (-)

Chemical-Specific Attenuation Factor AF 5

Dilution Attenuation Factor DAF 6

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Geosyntec Consultants 1 of 1 Attachment A3.xlsx

Attachment A3Determining Soil Cleanup Levels, LARWQCB Approach

Former Kast PropertyCarson, CA

Compound: Vinyl Chloride

Soil lithology:% gravel % sand % silt % clay TOTAL

LITHOLOGY: 100% 100%

CHEMICAL MCL (mg/L): 5.0E-04 MCL

AF CalculationSource

ρb 1.54 Site-specificn 0.421 Site-specific

qw 0.239 Site-specificfoc 0.83% Site-specificKoc 2.2E+01 USEPA RSLKd 1.8E-01 Kd = Koc × focKh 1.1E+00 USEPA RSL

Result Table

DEPTH (D) (ft) above GW

DEPTH FACTOR (AFd)

TOTAL ATTENUATIO

N FACTOR (AFt)

SOIL CLEAN UP LEVEL

(mg/kg)50 1 1 2.0E-0345 1 1 2.0E-0340 1 1 2.0E-0335 1 1 2.0E-0330 1 1 2.0E-0325 1 1 2.0E-0324 1 1 2.0E-0323 1 1 2.0E-0322 1 1 2.0E-0321 1 1 2.0E-0320 1 1 2.0E-0319 1 1 2.0E-0318 1 1 2.0E-0317 1 1 2.0E-0316 1 1 2.0E-0315 1 1 2.0E-0314 1 1 2.0E-0313 1 1 2.0E-0312 1 1 2.0E-0311 1 1 2.0E-0310 1 1 2.0E-035 1 1 2.0E-030 1 1 2.0E-03

Notes:AF = 1 + (rb/qw)*foc*Koc +(n-qw)*KH/qwD = Depth of Contaminant above the groundwater levelAFd = D(0.1*AF - 1)/40 + 1 - Eqn. 7. For depths less than or equal to 40 feet.AFd = (0.9(D-40)/110+0.1)AF - Eqn. 6. For depths 40<D<150 feet.AFt = (AFd/D)*(TGR/20+TSA/10+TSI/5+TCL) - Eqn. 12Soil Cleanup Level = C = Aft x MCL - Eqn. 13

Soil/Water Partition Coeff. (mL/g)

Soil density (g/cm3)porosity (-)water content (-)fract. Org. carbon (-)Org. carbon/water Partition Coeff. (mL/g)

Henry's Law Constant (-)

Chemical-Specific Attenuation Factor AF 3

Dilution Attenuation Factor DAF 6

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Geosyntec Consultants 1 of 1

Attachment A3.xlsx

Attachment A3

Determ

ining Soil Cleanup Levels, U

SEPA RSL Approach

Former Kast PropertyC

arson, CA

Com

poundC

w

(µg/L)D

AFK

d (L/kg)θw

(-)θa (-)

KH (-)

ρb (kg/L)Site C

leanup G

oals (m

g/kg)A

ntimony

66.2

450.239

0.1821.7E

-051.54

1.7

Arsenic

106.2

290.239

0.1821.7E

-051.54

1.8

Thallium2

6.271

0.2390.182

1.7E-05

1.540.9

Note:

Cw

G

roundwater quality criterion

DA

F D

ilution Attenuation Factor

Kd

Soil/W

ater partitioning coefficient

θw

Water content

θa A

ir content

H'

Dim

ensionless Henry's Law

Constant

ρb S

oil bulk density

𝐶𝑐𝑐𝑐𝑐𝑐𝑐𝑐

=𝐶𝑊

×DAF

×𝐾𝐾

+𝜃𝑊

+𝜃𝑐 𝐾

𝐻

𝜌𝑏

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Prepared for:

Shell Oil Products US 20945 S. Wilmington Avenues

Carson, CA 90810

Revised Site-Specific Cleanup Goal Report

Former Kast Property Carson, California

Prepared by:

924 Anacapa Street, Suite 4A

Santa Barbara, CA 93101 Telephone: (805) 897-3800

Fax (805) 899-8689 www.geosyntec.com

Project Number: SB0484-04-2

October 21, 2013

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SB0484\Revised SSCG Report Final 21-Oct-2013.docx i

CERTIFICATION

REVISED SITE-SPECIFIC CLEANUP GOAL REPORT

FORMER KAST PROPERTY

CARSON, CALIFORNIA

I am the Project Manager for Equilon Enterprises LLC doing business as Shell Oil Products US for this project. I am informed and believe that the matters stated in the Revised Site-Specific Cleanup Goal Report dated October 21, 2013 are true, and on that ground I declare, under penalty of perjury in accordance with Water Code section 13267, that the statements contained therein are true and correct.

_________________________________________ Doug Weimer Project Manager Shell Oil Products US October 21, 2013

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SB0484\Revised SSCG Report Final 21-Oct-2013.docx i

TABLE OF CONTENTS

Page

1.0 INTRODUCTION ................................................................................................ 1

1.1 Background .................................................................................................. 1 1.2 Objectives .................................................................................................... 3 1.3 Previous Response Actions ......................................................................... 3

2.0 SITE CONCEPTUAL MODEL ........................................................................... 7

2.1 Potential Sources and Potential Constituents of Concern ........................... 7 2.1.1 Total Petroleum Hydrocarbons ........................................................ 9 2.1.2 Volatile Organic Compounds .......................................................... 9 2.1.3 Semi-volatile Organic Compounds ................................................ 15 2.1.4 Metals ............................................................................................. 16 2.1.5 Methane ......................................................................................... 16 2.1.6 Summary of Potential COCs .......................................................... 17

2.2 Fate and Transport ..................................................................................... 18 2.3 Potential Exposure Pathways Evaluated .................................................... 21

3.0 PILOT TEST RESULTS .................................................................................... 23

3.1 SVE Pilot Tests .......................................................................................... 23 3.2 ISCO Bench-Scale Testing ........................................................................ 24 3.3 Bioventing Pilot Testing ............................................................................ 25 3.4 Excavation Pilot Testing ............................................................................ 26

4.0 CONSTITUENTS OF CONCERN AND REMEDIAL ACTION OBJECTIVES ..................................................................................................... 31

4.1 Constituents of Concern ............................................................................ 31 4.2 Remedial Action Objectives ...................................................................... 33

5.0 GUIDANCE DOCUMENTS AND POLICIES CONSIDERED ....................... 35

6.0 SOIL ................................................................................................................... 39

6.1 Residential Receptor .................................................................................. 42 6.2 Construction Worker and Utility Maintenance Worker ............................ 45 6.3 Soil Leaching to Groundwater ................................................................... 46

6.3.1 Methodology .................................................................................. 47 6.3.2 Cleanup Goals for Soil Leaching to Groundwater ......................... 48

7.0 SOIL VAPOR, INDOOR AIR, AND OUTDOOR AIR .................................... 50

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TABLE OF CONTENTS (Continued)

Page

SB0484\Revised SSCG Report Final 21-Oct-2013.docx ii

7.1 Residential Receptor .................................................................................. 50 7.1.1 Vapor Intrusion to Indoor Air ........................................................ 51 7.1.2 Vapor Migration to Outdoor Air .................................................... 57

7.2 Methane ..................................................................................................... 58 7.3 Construction and Utility Maintenance Worker Receptor .......................... 59

8.0 GROUNDWATER ............................................................................................. 60

8.1 Introduction ............................................................................................... 60 8.2 Groundwater Occurrence ........................................................................... 60 8.3 Groundwater Quality ................................................................................. 62

8.3.1 Non Site-Related COCs ................................................................. 64 8.3.2 Site-Related COCs ......................................................................... 68

8.4 Proposed Cleanup Goals for Groundwater ................................................ 73 8.4.1 Site Conditions Relevant to Establishing Cleanup Goals .............. 73 8.4.2 Regulatory Standards Relevant to Establishing Cleanup

Goals .............................................................................................. 76 8.4.3 Proposed Site-specific Cleanup Goals for Groundwater ............... 78

9.0 EVALUATION OF TECHNOLOGICAL AND ECONOMIC FEASIBILITY OF SSCGS AND SELECTION OF SSCGS ............................. 81

9.1 Introduction .............................................................................................. 81 9.2 Identification and Screening of Remedial Technologies ........................... 82

9.2.1 Remedial Technologies that Interrupt the Human Health Exposure Pathway .......................................................................... 82

9.2.2 Remedial Technologies that Remove COC Mass and Interrupt the Human Health Exposure Pathway ............................ 83

9.3 Assembly of Remedial Alternatives for Consideration in Developing SSCGs ............................................................................................. 86 9.4 Preliminary Screening of Remedial Alternatives ...................................... 88

9.4.1 Alternative 1 .................................................................................. 89 9.4.2 Alternative 2 .................................................................................. 90 9.4.3 Alternative 3 .................................................................................. 92 9.4.4 Alternative 3A ................................................................................ 94 9.4.5 Alternative 3B ................................................................................ 95 9.4.6 Alternative 4 .................................................................................. 97 9.4.7 Alternative 4A ................................................................................ 99

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TABLE OF CONTENTS (Continued)

Page

SB0484\Revised SSCG Report Final 21-Oct-2013.docx iii

9.4.8 Alternative 4B .............................................................................. 101 9.4.9 Alternative 5 ................................................................................ 102 9.4.10 Alternative 6 ................................................................................ 104 9.4.11 Alternative 7 Addition ................................................................. 105

9.5 Comparative Evaluation of Retained Alternatives .................................. 106 9.6 Recommendation of Remedial Alternative that Are Technologically and Economically Feasible Alternatives ............................... 107

10.0 REFERENCES ................................................................................................. 109

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SB0484\Revised SSCG Report Final 21-Oct-2013.docx iv

LIST OF TABLES

Table 4-1: Statistical Summary of Soil Matrix Data

Table 4-2: Statistical Summary of Soil Vapor Data

Table 4-3: Statistical Summary of Indoor Air Data

Table 4-4: Statistical Summary of Groundwater Data

Table 4-5: Soil Matrix Constituent of Concern Screening

Table 4-6: Soil Vapor Constituent of Concern Screening

Table 6-1: Site-specific Cleanup Goals for Soil – Resident and Construction and Utility Maintenance Worker

Table 6-2: Site-specific Cleanup Goals for Soil – Leaching to Groundwater

Table 7-1: Background Sources of Chemicals in Indoor Air

Table 7-2: Site-specific Cleanup Goals for Soil Vapor – Resident and Construction and Utility Maintenance Worker

Table 9-1: Feasibility Matrix

Table 9-2: Proposed SSCGs for Soil

Table 9-3: Proposed SSCGs for Soil Vapor

Table 9-4: Proposed SSCGs for Groundwater

Table 9-5: Summary of Preliminary Screening Cost Estimate for Screening Feasibility Study

LIST OF FIGURES

Figure 1-1: Site Location Map

Figure 6-1: Summary of Benzo(a)pyrene Equivalents Soil

Figure 6-2: Summary of TPH-Diesel Concentrations in Soil

Figure 6-3: Summary of TPH-Motor Oil Concentrations in Soil

Figure 7-1: Summary of Benzene Concentrations in Sub-slab Soil Vapor

Figure 7-2: Summary of Naphthalene Concentrations in Sub-slab Soil Vapor

Figure 7-3: Summary of Trichloroethene Concentrations in Sub-slab Soil Vapor

Figure 7-4 Summary of Tetrachloroethene Concentrations in Sub-slab Soil Vapor

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SB0484\Revised SSCG Report Final 21-Oct-2013.docx v

Figure 7-5: Summary of Benzene Concentrations in Indoor Air

Figure 7-6: Summary of Naphthalene Concentrations in Indoor Air

Figure 7-7: Summary of PCE Concentrations in Indoor Air

Figure 7-8: Comparison of Indoor Air Results to Literature Background Concentrations

Figure 7-9: Comparison of Outdoor Air Results to Literature Background Concentrations

Figure 8-1: Geologic Cross Section

Figure 8-2: Benzene Concentrations in Groundwater – Q3 2013; Shallow Zone Wells

Figure 8-3: Benzene Concentrations in Groundwater – Q3 2013, Shallow Gage Aquifer

Figure 8-4: Benzene Concentrations in Groundwater– Q3 2013; Deep Gage Aquifer

LIST OF APPENDICES

Appendix A: Soil and Soil Vapor Site-specific Cleanup Goal Derivation

Appendix B: Vapor Intrusion Pathway Evaluation

Appendix C: Monitoring and Remediation Optimization System (MAROS) and BioScreen Model Results

Appendix D: Responses to Regional Board, OEHHA, and Expert Panel Comments

Appendix E: Distribution of Selected Volatile Organic Compounds in On-site and Off-site Areas (Soil and Groundwater)

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B-1

APPENDIX B Vapor Intrusion Evaluation

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APPENDIX B Vapor Intrusion Evaluation

B-2

1. INTRODUCTION

This appendix provides a detailed assessment of the vapor intrusion pathway at the former Kast Property (Site). A multiple-lines-of-evidence evaluation was conducted to assess whether volatile organic compounds (VOCs) detected in soil and soil vapor at the Site are resulting in a measureable effect on indoor air. The results of this evaluation are also used to develop site-specific cleanup goals (SSCGs) that may be used to make corrective action decisions regarding this pathway.

There are various potential sources of VOCs in indoor air, and background sources can make the interpretation of indoor air difficult. Background sources include VOCs in outdoor air or emissions from household building materials (e.g. rugs, paints), household products, or materials brought into the home. The contribution of background sources to indoor air concentrations is an important element in evaluation of the role of soil vapor to the indoor air pathway. Indoor and outdoor air concentrations measured during the Phase II Site Characterization at the Site were compared to literature values of “typical” concentrations found in indoor and outdoor air.

The Phase II Site Characterization data were further evaluated to assess the empirical correlation between soil vapor and indoor air data. Correlation, or the lack thereof, can be used to establish if subsurface soil vapor is contributing to indoor air concentrations. This analysis is used to support the development of a site-specific vapor intrusion attenuation factor that can be used for corrective action planning. The vapor intrusion attenuation factor is the ratio of indoor and subsurface vapor concentrations for constituents measured in both media assuming that the contributions from background sources are insignificant. Development of site-specific empirical attenuation factors is consistent with implementation of USEPA guidance for sites across the United States (USEPA, 2012).

2. DATA SUMMARY

Through August 31, 2013, indoor and sub-slab soil vapor data have been collected at 241 properties of the 285 properties1. The addresses and sampling dates for these properties are listed in Table B-1 and the locations of these properties are shown on Figure B-1. To address spatial variability associated with vapor intrusion pathway evaluations, indoor and sub-slab soil vapor samples were collected at properties throughout the Site as access for the sampling activities was granted by property owners. To address questions regarding temporal variability, concomitant indoor and sub-slab soil vapor samples were collected on two separate dates at each property, and indoor and sub-slab soil vapor samples have been collected throughout the Site

1 Sub-slab soil vapor samples were collected at an additional 24 properties, but indoor air samples were not collected at these properties as of August 31, 2013. Consequently data from these properties are not included in this evaluation.

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APPENDIX B Vapor Intrusion Evaluation

B-3

since January 2010. Figure B-2 shows the frequency of indoor and sub-slab soil vapor sampling during the investigation. This section summarizes the sub-slab soil vapor and indoor air data sets and describes how they are used in this evaluation.

2.1 Sub-Slab Soil Vapor

Sub-slab soil vapor samples were generally collected from three locations at each residential property: one from beneath the living area and two beneath pavement outside the building footprint. The specific locations of the sub-slab soil vapor samples varied due to the property layout and access (e.g., at some properties a sub-slab probe was installed in the garage rather than a front yard hardscape location). Generally, the sub-slab soil vapor samples were collected immediately following completion of the 24-hour indoor/outdoor air sampling for each property. Sub-slab soil vapor analytical results for the properties considered in this vapor intrusion evaluation are summarized on Table B-2.

Sub-slab soil vapor analytical results were compared to conservative risk-based screening levels (RBSLs) used in the human health screening risk evaluations (HHSRE) presented in the Interim, Follow-up, and Final Interim Phase II Site Characterization reports for the individual properties. For the HHSREs, the sub-slab soil vapor RBSLs were calculated by dividing the indoor air RBSLs by a generic screening-level attenuation factor of 0.01. The analysis presented in this appendix shows that the generic screening-level attenuation factor used to calculate the soil vapor RBSLs was conservative (i.e., over-estimates potential contribution of VOCs detected in soil vapor to indoor air). A summary of COCs exceeding sub-slab soil vapor RBSLs is provided in Table B-3. Figures B-3 and B-4 show the sub-slab soil vapor analytical results for benzene and naphthalene, the key Site-related COCs for vapor intrusion pathway analysis. Spatial variability is evident at many properties; exceedances were infrequently or inconsistently observed at each property (Figures B-3 and B-4). Temporal variability is also evident in the analytical results presented in Table B-2.

2.2 Indoor/Outdoor Air Sampling

The indoor air sampling typically consisted of two to three indoor air samples (two primary indoor air samples and periodically a duplicate sample from one of the locations). Concurrently, an air sample from the garage and two outdoor air samples – one at the front and one at the back of the residence – were also collected. Through August 31, 2013, two rounds of indoor/outdoor/garage air sampling were conducted at 147 of the 241 properties where sub-slab soil vapor and indoor air data were collected. Indoor, garage, and outdoor air analytical results for the samples considered in this evaluation are summarized in Table B-4. A statistical summary of the analytical results of the air samples collected for the vapor intrusion evaluation is provided in Table B-5.

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APPENDIX B Vapor Intrusion Evaluation

B-4

As reported in the Interim, Follow-up, and Final Interim Phase II Site Characterization reports, indoor, garage, and outdoor air concentrations for several constituents exceed RBSLs. However, as discussed below, background concentrations of these compounds commonly exceed these screening levels, and the measured air concentrations for samples collected at the site are within the range reported for background levels. These conclusions were discussed in the Interim and Follow-up Phase II Site Characterization reports which have been reviewed by the California Regional Water Quality Control Board – Los Angeles Region (RWQCB) and California Environmental Protection Agency Office of Environmental Health Hazard Assessment (OEHHA). The regulatory agency reviews of the Interim, Follow-up, and Final Interim Phase II Site Characterization reports have generally concurred that the VOCs detected in indoor air appear to be due to background sources.

Figures B-5 and B-6 show the indoor air analytical results for benzene and naphthalene. The figures highlight the distribution of concentrations of these constituents in indoor air and illustrate the spatial variability observed among homes across the Site. Within the homes, however, indoor air samples collected in different rooms (e.g., kitchen and bedroom) on the same date are generally similar. Temporal variability is evident in the analytical results for indoor, outdoor, and garage air samples presented in Table B-4.

3. BACKGROUND CONCENTRATION EVALUATION

In order to evaluate the significance of concentrations of VOCs detected in indoor air, a literature review of background levels of VOCs and other petroleum compounds was conducted. For vapor intrusion evaluations, background is defined as sources that are not due to subsurface impacts (e.g., contributions due to outdoor air or indoor sources). This section presents a review of background sources and concentrations and compares Site data to literature values.

3.1 Background Sources

There are a variety of background sources that can contribute to concentrations of VOCs in indoor air. These sources include outdoor air, sources within attached garages, indoor product use and activities, offgassing from municipal water, residential building materials (e.g., paint, carpet, vinyl flooring), and materials brought into the home (e.g., dry cleaned clothing). Outdoor air, which in urban environments contains VOCs, mixes with indoor air through open doors and windows as well as through leaks/penetrations in the building envelope (i.e., buildings are not constructed to be air tight even when doors and windows are closed). Impacted air in attached garages can migrate into indoor areas as a result of poor seals between the garage and the residential living spaces (CARB, 2005). Elevated concentrations of VOCs in indoor air are often associated with indoor product use, occupant activities (e.g., hobbies, smoking), new building materials (Van Winkle and Scheff, 2001), and off-gassing from municipal drinking water. Typical sources of these background impacts include environmental tobacco smoke from

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APPENDIX B Vapor Intrusion Evaluation

B-5

cigarettes and cigars, gasoline- or diesel- powered equipment, paints, glues, solvents, cleaners, and natural gas.

• Environmental tobacco smoke is known to contain VOCs including benzene, toluene, xylenes, naphthalene, and styrene (Offermann et al., 1991; CARB, 2005; Jia and Batterman, 2010).

• Gasoline- and diesel-powered equipment such as automobiles and lawn mowers emit VOCs typical of petroleum products including benzene, toluene, ethylbenzene, and xylenes (BTEX), heptane, hexane, naphthalene, 1,2,4-trimethylbenzene, and 1,3,5-trimethylbenzene (CARB, 2005).

• Municipal drinking water contains trihalomethanes (e.g., chloroform and bromodichloromethane) which is a common by-product of municipal water disinfection.

• Paints, glues, solvents, cleaners, and deodorizers contain a wide variety of VOCs and are commonly found and used in residential households. VOCs associated with these products include (but are not limited to) BTEX, naphthalene, carbon tetrachloride, tetrachloroethene (PCE), and 1,4-dichlorobenzene (CARB, 2005).

• Natural gas contains low concentrations of low molecular weight hydrocarbons (e.g., benzene) and leaking natural gas lines/connections can be a source of VOCs to indoor air.

Table B-6 summarizes common background sources of VOCs detected in indoor air and includes typical and maximum values that have been observed in air.

3.2 Indoor vs. Outdoor Concentrations

Studies have consistently shown that background concentrations of VOCs are higher in indoor air than in outdoor air (Van Winkle and Scheff, 2001; Hodgson and Levin, 2003; Sexton et al., 2004; CARB, 2005). On average, indoor concentrations were one (Jia and Batterman, 2010) to five (CARB, 2005) orders of magnitude higher than measured outdoor concentrations. This trend is likely due to two primary factors: indoor sources (as discussed above) and lower indoor ventilation compared to outdoor dispersion (Sexton et al., 2004). Studies have also shown that background levels in indoor air are building-specific due to household use and occupant activities (Van Winkle and Scheff, 2001; CARB, 2005).

3.3 Indoor Air Background Evaluation

Six studies were reviewed to evaluate VOC background concentrations in indoor air. These studies included original investigations (Van Winkle and Scheff, 2001; Sexton et al., 2004) and data compilations (Hodgson and Levin, 2003; CARB, 2005; Jia and Batterman, 2010; USEPA,

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APPENDIX B Vapor Intrusion Evaluation

B-6

2011). A summary of the documents reviewed and the background concentrations reported is presented below.

• Van Winkle and Scheff (2001) monitored ten homes at regular intervals for just under a year to evaluate background VOC and polycyclic aromatic hydrocarbons (PAH) concentrations in indoor air. The study excluded homes with smokers. Background concentrations in this study were attributed to mothball storage, air freshener use, and cooking activities.

• Sexton et al. (2004) conducted a study to evaluate personal, indoor, and outdoor air exposures in three different neighborhoods during spring, summer, and fall of 1999. The study excluded homes with smokers and found that concentrations in indoor air were greater than concentrations in outdoor air, and that concentrations in personal air (breathing zone) were greater than concentrations in indoor air. Background concentrations in this study were attributed to outdoor sources, including industry and automotive exhaust, and indoor sources including consumer products and cooking emissions.

• Hodgson and Levin (2003) conducted a review of VOC concentrations measured in North America since 1990. Data collected from studies in which environmental tobacco smoke-specific compounds were reported were excluded from this assessment.

• In 2005, the California Air Resources Board (CARB) prepared a report on indoor air pollution in California. The report was extensive and documented the health effects, costs, sources, and concentrations of indoor air pollutants.

• Jia and Batterman (2010) conducted a review of naphthalene sources and exposures relevant to indoor and outdoor air. This study found that average naphthalene concentrations ranged from 0.02 µg/m3 to 0.31 µg/m3 in non-smoker’s homes. Naphthalene emission sources include industry, open burning, combustion, and tailpipe emissions. The second largest source is off-gassing from products including deodorizers, repellants (including moth balls), and fumigants.

• In June 2011, the USEPA published a compilation of background indoor air VOC concentrations for North American residences from 1990 through 2005. Studies evaluated in this report were limited to those in which no known or suspected contamination was present below the ground surface unless a proven and effective vapor intrusion mitigation system was in place. The study also excluded data in which smokers were present. This technical report compiled summary statistics (e.g., 25th, 50th, 75th, 90th, and 95th percentiles, number of samples, percent detection, and reporting limits) for the distribution of indoor air concentrations in thousands of residences that are not expected or known to be at risk of vapor intrusion. The study found that background

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VOC concentrations in indoor air are highly variable and that the VOCs most commonly detected in indoor air due to background sources include BTEX and chlorinated solvents.

The impact of smoking was specifically excluded in the studies selected to represent background. However, smoking can greatly affect the quality of indoor air and contribute to concentrations of several petroleum-related compounds (Jenkins et al., 2000). Exclusion of smoking related background may bias the background indoor air data low.

Median indoor air background concentrations for petroleum hydrocarbons are summarized in the table below, and indoor air background concentrations reported in the USEPA study (USEPA, 2011) are shown in Table B-7.

Median Indoor Air Background Concentrations for Petroleum Hydrocarbons from Literature Studies

(Concentrations reported in µg/m3)

Compound Van Winkle (2001)

Sexton (2004)

Hodgson and Levin (2003)

USEPA (2011)

Benzene 2.9 1.9 2.78 <RL - 4.7

Ethylbenzene 9.1 1.4 2.3 1 - 3.7

Toluene 3.2 12.3 12.4 4.8 - 24

m,p-Xylene 13.5 4.8 6.1 1.5 - 14

o-Xylene 3.6 1.6 2.3 1.1 - 3.6

Naphthalene 0.47 NR 0.47 <RL - 0.4

NR – Not reported < RL – Median concentration below method reporting limit

The indoor air concentrations measured at the Site were compared to the literature values summarized by USEPA (USEPA, 2011). The USEPA study did not include raw data for the background data sets, but robust summary statistics were provided. The percentiles calculated from the onsite indoor air concentrations were compared to the background percentile ranges provided in the USEPA report.

Table B-7 provides the summary statistics (e.g., 50th, 75th, 90th, and 95th percentiles), sample sizes, the reporting limits, and percent detections of the background indoor air concentrations

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from the USEPA report. Table B-8 summarizes the summary statistics (e.g., 25th, 50th, mean, 75th, 90th, and 95th percentiles), sample sizes, and percent detections for concentrations for indoor air samples collected at the Site2. These summary statistics show that indoor air concentrations from both data sets are highly variable (range spans an order of magnitude or more).

A comparison of the two data sets (USEPA, 2011 and Site data) is shown on Figure B-7. The box and whisker plot for each chemical shows the indoor air concentration distributions for ten compounds that were frequently detected in the indoor air samples at the Site (detection frequencies greater than 95%). The box in these figures shows the interquartile range (i.e., 25th to 75th percentile) and the bar in the middle of the box is the median value. The whiskers of the plots show the 10th and 90th percentile concentrations and outlier results are plotted to illustrate the range of detected concentrations. The colored symbols on this plot show the ranges of median, 90th percentile, and maximum indoor air concentrations reported in the USEPA report (USEPA, 2011). Open and closed symbols show the lower and upper end of the ranges for these statistics, respectively.

With the exception of 1,2-dichloroethane (1,2-DCA), the Site concentrations were within the background range reported by USEPA. Although 1,2-DCA was outside of the background range reported in the USEPA study, more current studies (Doucette et al., 2010; Kurtz et al., 2010) conclude that this compound has been detected in increasing frequency and higher concentrations since 2004 (i.e., the data considered in the USEPA study [1990 through 2005] did not reflect this more recent increase in indoor air concentrations).

The comparison of Site data with literature background values indicates that VOCs detected in indoor air are within the range of reported background concentrations. This complicates analysis of the vapor intrusion pathway as the indoor air concentrations are more likely reflective of background sources rather than related to sub-slab soil vapor concentrations.

3.4 Outdoor Air Background Evaluation

Two studies were identified that report regional background concentrations of VOCs in outdoor air (SCAQMD, 2008; DRI, 2009). Results from these studies were considered for the outdoor air background evaluation.

• The South Coast Air Quality Management District (SCAQMD) conducted a multi-year monitoring and evaluation study for the South Coast Air Basin. Sample collection and analysis for the Multiple Air Toxics Exposure Study III (MATES III) was performed between April 2004 and March 2006. Samples were collected from ten fixed monitoring stations every three days over the course of the study. Two of the monitoring stations

2 For the comparison, Table B-8 includes only constituents that are listed in the USEPA (2011) summary and that were detected in indoor air samples collected at the Site.

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(West Long Beach and North Long Beach) were located in the general area of the Site. The study provided statistics of the concentrations of detected VOCs for the individual monitoring stations.

• CARB conducted the Harbor Community Monitoring Study (HCMS) to characterize the concentrations of VOCs in the area near the Site. There were 23 monitoring locations in this study; one of these locations was located just south of the Site. Samples were collected in 2007 over four consecutive weeks during each season. The study provided statistics of the concentrations of detected VOCs for the individual monitoring stations.

Average outdoor air background concentrations for petroleum hydrocarbons are summarized in the table below, and outdoor air background concentrations for all VOCs reported in these studies are shown in Table B-9.

Average Outdoor Air Background Concentrations for Petroleum Hydrocarbons from Literature Studies

(Concentrations reported in µg/m3)

Compound MATES III North Long Beach

MATES III West Long Beach

HCMS

Apr. 2004 – Mar. 2005

Apr. 2005 – Mar. 2006

Apr. 2004 – Mar. 2005

Apr. 2005 – Mar. 2006

2007

Benzene 1.79 ± 0.19 1.53 ± 0.19 1.82 ± 0.26 1.60 ± 0.22 1.50 ± 0.26

Ethylbenzene 0.95 ± 0.13 0.87 ± 0.13 1.17 ± 0.17 0.95 ± 0.13 1.65 ± 0.56

Toluene 6.03 ± 0.75 5.28 ± 0.75 7.46 ± 1.17 5.88 ± 0.87 6.03 ± 0.98

m,p-Xylene 3.69 ± 0.48 2.95 ± 0.43 4.04 ± 0.65 3.12 ± 0.48 5.25 ± 0.65†

o-Xylene 0.82 ± 0.13 0.74 ± 0.17 0.95 ± 0.17 0.82 ± 0.17

Naphthalene NR 0.18 ± 0.03 NR NR NR

NR – Not reported † HCMS presented results for Total Xylenes (m,p-Xylene + o-Xylene)

The outdoor air concentrations measured at the Site were compared to the literature values for studies conducted in the region (SCAQMD, 2008; DRI, 2009). Table B-10 lists the summary statistics (e.g., 25th, 50th, mean, 75th, 90th, and 95th percentiles), sample sizes, and percent

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detections for concentrations for outdoor air samples collected at the Site3. These summary statistics show that outdoor air concentrations from both data sets are highly variable (range spans an order of magnitude or more).

A comparison of the two data sets is shown on Figure B-8. The box and whisker plot for each chemical shows the outdoor air concentration distributions for eleven compounds reported in the regional studies. The box in these figures shows the interquartile range (i.e., 25th to 75th percentile) and the bar in the middle of the box is the median value. The whiskers of the plots show the 10th and 90th percentile concentrations and outlier results are plotted to illustrate the range of detected concentrations. The colored symbols on this plot show the ranges of mean and maximum outdoor air concentrations reported in the regional studies (SCAQMD, 2008; DRI, 2009). Open and closed symbols show the lower and upper end of the ranges for these statistics, respectively.

The concentrations of these constituents detected in samples collected from the Site are within the reported background ranges. The comparison of Site data with literature background values indicates that VOCs detected in outdoor air are reflective of background concentrations.

4. SITE-SPECIFIC VAPOR INTRUSION PATHWAY EVALUATION

Multiple-lines-of-evidence vapor intrusion evaluations have been presented in the Interim, Follow-up, and Final Phase II Site Characterization reports for properties where indoor air data were collected. These property-specific evaluations considered the following lines of evidence to assess the sources of VOCs detected in indoor air:

• An evaluation of chemicals detected in soil vapor. If a chemical (i) is not detected in soil vapor but detected in indoor air, or (ii) the indoor air concentration is greater than the sub-slab soil vapor concentration, then the VOC detected in indoor air is likely due to a background source (ITRC, 2007).

• Comparison of indoor air and outdoor air concentrations.

• Comparison of indoor air and garage air concentrations.

• Comparison with typical indoor air values reported in the literature.

Based on the evaluations for the individual residential properties, vapor intrusion of chemicals present in the subsurface does not appear to be significant. These evaluations were conducted for each individual property to address questions regarding the spatial variability of the vapor

3 For the comparison, Table B-10 includes only constituents that are listed in the regional studies summary and that were detected in outdoor air samples collected at the Site.

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intrusion data. Additionally, data were collected throughout the investigation period during different seasons and weather conditions to address questions regarding temporal variability of the vapor intrusion data.

Both indoor air and outdoor air concentrations are within the range reported for relevant background comparison concentrations, which complicates evaluation of the vapor intrusion pathway at this site. As illustrated in Figure B-9, indoor air concentrations are potentially affected by (i) emissions from indoor sources, (ii) mixing with the garage air, (iii) mixing with outdoor air, and (iv) vapor intrusion. This section presents statistically rigorous approaches to determine whether an empirical relationship between indoor air and sub-slab soil vapor concentrations can be defined for the Site and supports development of a site-specific vapor intrusion attenuation factor. The relationships among the indoor, outdoor, and garage air results and sub-slab soil vapor results are analyzed using multiple linear regression. This analysis is supplemented with an evaluation of the indoor air and sub-slab soil vapor relationship using single linear regression coupled with a source-strength filtering approach similar to that presented in USEPA (2012).

4.1 Data for Statistical Analysis

The multiple regression analysis was conducted for ten compounds selected to consider a range of detection frequencies in indoor air, outdoor air, and sub-slab soil vapor samples collected at the Site. The selected compounds include petroleum hydrocarbons (BTEX [m,p-xylene was evaluated separately from o-xylene] and naphthalene), chlorinated hydrocarbons (1,2-DCA, carbon tetrachloride, and PCE) and a trihalomethane (chloroform). Seven of these compounds were detected at the Site at concentrations that exceed indoor air risk-based screening levels (toluene, m,p-xylene, and o-xylene were not detected in indoor air at concentrations exceeding risk-based screening levels). Four of these constituents (naphthalene, chloroform, benzene, and PCE) had the highest detection frequency in sub-slab soil vapor for these COCs at the Site. Statistical evaluation of these ten compounds is a representative sub-set to evaluate the potential vapor intrusion pathway at the Site. The source strength analysis used all compounds for which sub-slab soil vapor concentrations were above the detection limit.

The data sets used in the analyses met the following criteria:

• Analytical results for both air and sub-slab soil vapor samples collected from October 2010 through August 2013.

• Samples where sub-slab soil vapor and indoor air data were collected on consecutive days (typically, sub-slab soil vapor samples were collected following the completion of the 24-hour indoor air sampling event).

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• For a given property and sample date, the maximum detected concentrations for (i) indoor air, (ii) garage air, (iii) outdoor air, and (iv) soil vapor were used in the statistical analysis.

The analytical data for all of the COCs for which sub-slab soil vapor concentrations were above detection are presented in Table B-11 and summary statistics (sample size, detection frequency, minimum and maximum concentration) by COC are provided in Table B-12. High detection frequencies generally are reported for indoor air (98% to 100%), garage air (96% to 100%), and outdoor air (70% to 100%) for the representative compounds used in the multiple linear regression analysis. Lower detection frequencies were observed for the sub-slab soil vapor results. To limit the impact of non-detect sub-slab soil vapor results on the statistical analysis, the data sets for the multiple linear regression analysis and source strength analysis generally were limited to those with detected sub-slab soil vapor concentrations. However, for several of the compounds with low sub-slab soil vapor detection frequencies (i.e., 1,2-DCA, benzene, carbon tetrachloride, ethylbenzene, m,p-xylene, and o-xylene), the multiple regression analysis used the complete data set. If a constituent was not detected in any of the samples for a specific medium on a given sample date, the minimum analytical reporting limit was used in the analysis.

4.2 Multiple Linear Regression Approach

Multiple linear regression, as depicted in Figure B-9, was used to model the relationship between a variable of interest (called a response variable, which in this case is indoor air concentration) and explanatory variables (in this case, sub-slab soil vapor, garage air, and outdoor air concentrations). The relationship between the response and explanatory variables is fit to a linear equation using the observed data. Implicit in this approach is that the response variable is assumed to be linearly related to the explanatory variables. The assumption of linearity is reasonable considering indoor air concentrations resulting from mixing with external air (outdoor, garage, and sub-slab) can be estimated using simple algebraic relationships. Thus, a linear correlation is expected between indoor air and any of the explanatory (outdoor air, garage air, or sub-slab soil vapor concentrations) that are responsible for the observed indoor air concentrations. An additional term is included in the multiple linear regression equation to account for emissions from indoor air sources. More formally, the multiple linear regression equation for each compound is:

𝑌 = 𝛽0 + 𝛽1𝑋1 + 𝛽2𝑋2 + 𝛽3𝑋3 + 𝜖,

where

Y is the log-transformed indoor air concentration;

X1 is the log-transformed garage concentration;

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X2 is the log-transformed outdoor air concentration;

X3 is the log-transformed sub-slab soil vapor concentration;

β0 is the intercept term, or the mean value of indoor air concentration when all explanatory variables are set to zero, and is representative of indoor sources;

β1 represents the effect of a 1% increase in garage concentration on the mean indoor air concentration, while holding outdoor air and soil gas concentrations fixed;

β2 represents the effect of a 1% increase in outdoor air concentration on the mean indoor air concentration, while holding garage and soil gas concentrations fixed;

β3 represents the effect of a 1% increase in soil gas concentration on the mean indoor air concentration, while holding garage and outdoor air concentrations fixed; and

ϵ represents the residual or error term which quantifies the deviations of the observed value from the predicted value obtained from the linear regression equation.

Note that ϵ is assumed to be independent and identically distributed with mean zero and constant variance.

Since the regression coefficients (β parameters) associated with each explanatory variable are unknown, they are estimated using a method of least squares. Statistical tests, known as hypothesis tests, are then conducted to determine whether these estimates are statistically different from zero. If the estimate is statistically significant (i.e., the estimate is statistically different from zero), then the value and sign of the estimate represent the magnitude and direction of the effect of that explanatory variable on the mean indoor air concentration.

Additionally, the coefficient of determination (R2 value) is a measure of the linear association between the response variable and the explanatory variables and is used to assess the model fit. Essentially, the R2 value quantifies the overall proportion of variability in indoor air concentrations that can be explained by garage, outdoor air, and soil gas concentrations. The greater the R2 value, the stronger the association between the indoor air concentration and the garage, outdoor air, and soil gas concentrations and the better the linear regression model fit. Conversely, if the R2 value is low, then there is generally a poor correlation between the indoor air concentration and the garage, outdoor air, and soil gas concentrations, and we would conclude that the variability in indoor air concentrations is due to variability in contributions from indoor sources (i.e., variability in β0).

For each compound, a multiple linear regression was performed on the log-transformed data sets. Log-transformation addresses the underlying distribution of the data and improves the statistical properties of the hypothesis testing since the variables themselves will exhibit normality, and

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will ensure that the other model assumptions (i.e., errors are normally distributed and have constant variance) are better met. Log transforms of environmental data are frequently required because environmental data are often log-normally distributed (Gilbert, 1987).

4.3 Multiple Linear Regression Results

The multiple linear regression analysis statistically evaluated the log-transformed data sets to calculate coefficient estimates which characterize the log-linear relationship between the paired concentrations (e.g., increases in outdoor air concentrations result in an increase in indoor air concentrations). Attachment A contains the correlation plots for the log-transformed data sets for each compound. The top rows of these figures show the correlation plots of indoor air concentrations to (i) garage air concentrations, (ii) outdoor air concentrations, and (iii) sub-slab soil vapor concentrations. These plots can be used to qualitatively assess the relationships between measured concentrations in the different media.

• For the six compounds with low detection frequencies in sub-slab soil vapor (1,2 dichloroethane, benzene, carbon tetrachloride, ethylbenzene, m,p-xylene, and o-xylene), the sub-slab soil vapor versus indoor air correlation plots are predominantly comprised of results where the COC was not detected in sub-slab soil vapor (shown in these figures as low concentration soil vapor concentration bands). Since the COC was not detected in sub-slab soil vapor for these points, the indoor air concentrations are representative of background levels.

• For constituents with higher detection frequencies (chloroform, naphthalene, tetrachloroethene, and toluene), indoor air concentrations are representative of background levels Note that the ranges of indoor air concentrations for samples with low sub-slab soil vapor concentrations are similar to those when higher sub-slab soil vapor concentrations were detected.

These figures indicate ranges of background concentrations for each COC that are likely due to variability in outdoor air concentrations and/or property-specific product use. Consequently, it is concluded that the measured indoor air concentrations at the Site are indistinguishable from background, even for properties with higher sub-slab soil vapor concentrations.

The multiple linear regression results are shown in Table B-13. The coefficient estimates for β1 (garage air to indoor air) and β2 (outdoor air to indoor air) were statistically significant, indicating that the indoor air concentrations are related to the garage and outdoor air concentrations4. The coefficient estimates for β3 (sub-slab soil vapor to indoor air) were not statistically significant for most compounds, but statistically significant coefficient estimates

4 Note that the outdoor air to garage air coefficient estimate for 1,2-DCA is not statistically significant.

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were seen for chloroform and naphthalene. Note that the sub-slab soil vapor to indoor air correlation coefficient for naphthalene is less than 0. This indicates an inverse relationship between measured concentrations in these media. The calculated coefficient of -0.10 for naphthalene indicates that the contribution to indoor air would be lower for cases with higher sub-slab soil vapor concentrations. This inverse relationship is not consistent with the vapor intrusion conceptual model, and consequently, it is concluded that the correlation between the sub-slab soil vapor and indoor air concentrations for naphthalene is not a result of vapor intrusion.

The magnitude of the coefficient estimate indicates the relative contribution to indoor air concentrations from the different explanatory variables. For example, for carbon tetrachloride, the outdoor air coefficient was higher than that for garage air; this indicates that carbon tetrachloride detected in outdoor air has a larger effect on indoor air concentrations than contributions of this compound detected in garage air. Conversely, 1,2-DCA has a higher coefficient for garage air and no significant correlation for outdoor air, which indicates that 1,2-DCA detected in garage air has a larger effect on indoor air concentrations than contributions from outdoor air. Also, note that the sub-slab soil vapor to indoor air correlation coefficient for naphthalene is much less than the garage air to indoor air and outdoor air to indoor air correlation coefficients, indicating that the inverse relationship for sub-slab soil vapor to indoor air identified for naphthalene is small relative to the garage or outdoor air concentrations.

The amount of variability (R2) in indoor air concentrations explained by garage, outdoor air, and soil vapor concentrations ranged from 18% (chloroform) to 78% (carbon tetrachloride) (Table B-13). The regressions for benzene and carbon tetrachloride showed the highest R2 values (64% to 78%, respectively). Therefore, a majority of the variability of indoor air concentrations for these compounds is explained by the garage air and outdoor air concentrations. The regressions performed for the remaining compounds included in the multiple linear regression analysis ranged from 18% to 47%; this suggests that indoor sources have a larger effect on the variability of indoor air concentrations for these constituents. Note that the R2 values for chloroform and naphthalene were the lowest for the COCs evaluated. Even though a statistically significant sub-slab soil vapor to indoor air coefficient was identified for these constituents, the low R2 values indicate that the multiple linear regression model does not provide a good fit for these data (i.e., the indoor air concentrations for these compounds are not well characterized by garage, outdoor air, and soil vapor concentrations, and are predominantly influenced by indoor sources).

Overall, the multiple linear regression analysis indicates that there is a poor correlation between sub-slab soil vapor and indoor air concentrations. Statistically significant correlations between sub-slab soil vapor and indoor air concentrations are not shown for most of the COCs included in the evaluation. Statistically significant sub-slab soil vapor to indoor air coefficients are shown for chloroform and naphthalene; however, based on the low R2 value and negative coefficient calculated for naphthalene, the contribution of sub-slab soil vapor to indoor air concentrations are not considered to be significant for these compounds.

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Finally, model selection methods were used to evaluate the appropriateness of the selected linear regression model. For the COCs where the multiple linear regression analysis concluded that the soil vapor variables were not statistically significant, the data were re-fit using a reduced model which excludes the soil gas term (i.e., indoor air concentrations were modeled as a function of garage and outdoor air only or 𝑌 = 𝛽0 + 𝛽1𝑋1 + 𝛽2𝑋2 + 𝜖). In order to evaluate the effect of the removal of this variable, a statistical test (an F-test) was conducted to compare the multiple linear regression analysis results using the full and reduced models. This reduced-model test was not conducted for chloroform or naphthalene, because the full model indicated that the sub-slab soil vapor coefficient was statistically significant. Table B-14 provides a summary of the full and reduced model fits and the results of the F-test for the comparison of the two models. The regression coefficients and R2 values for the reduced models are almost identical to those of the full model. Additionally, the results of the F-tests indicate that the reduced model (i.e., excluding sub-slab soil vapor concentrations as an explanatory variable) provide the same fit as the full model. In other words, for the COCs evaluated with the reduced model, the sub-slab soil vapor concentrations do not appear to be a significant influence on indoor air concentrations.

The multiple regression analysis results indicate that indoor air concentrations are generally correlated with outdoor or garage air concentrations and/or largely influenced by indoor sources. The statistical analysis indicates that the sub-slab soil vapor concentrations do not have a significant effect on indoor air concentrations as compared to these other sources. This evaluation corroborates the results of the comparison of indoor and outdoor air concentrations to the reported ranges of background air concentrations.

4.4 Source Strength Analysis Approach

The source strength analysis approach presented in this section was used to determine if an empirical relationship between indoor air and sub-slab soil vapor concentrations can be defined when background influences on the indoor air concentrations are accounted for and minimized. This requires considering how background indoor air concentrations influence the empirical attenuation factor, which is shown in the equation below (USEPA, 2012):

( )SS

BKGDIAVI

SS

BKGDIAVIIAEMP C

CAFC

CCAF −−− +=+

=

where

AFEMP represents the empirical attenuation factor,

AFVI represents the attenuation factor for vapor intrusion in the absence of indoor sources,

CIA-BKGD represents the indoor air concentration due to background indoor sources,

CIA-VI represents the indoor air concentration due to vapor intrusion, and

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CSS represents the sub-slab soil vapor concentration.

When background indoor air concentrations are equivalent to or greater than the concentration contributed by vapor intrusion, the empirical attenuation factor will be biased high relative to the vapor intrusion attenuation factor, AFVI, by the contribution of background sources to indoor air. The bias varies in proportion to the relative contribution of background sources to the total indoor air concentration. This equation shows that the empirical attenuation factor is most likely to represent the attenuation due to vapor intrusion when the indoor air concentration from vapor intrusion is substantially greater than the background indoor air concentration, which is most likely to occur when subsurface vapor concentrations are high. As the background due to outdoor ambient air was quantified in this study, the outdoor air concentration was subtracted from the indoor air concentration when evaluating the sub-slab soil vapor to indoor air relationship.

4.5 Source Strength Analysis Results

Figure B-10 shows the relationship between the empirical attenuation factor and source strength (i.e., sub-slab soil vapor concentration) for all compounds detected in sub-slab soil vapor5. This figure shows significant scatter in the empirical attenuation factors, particularly at low source concentrations (including values greater than 1) which is a result of background effects. Empirical attenuation factors for non-chlorinated solvents (including compounds such as acetone, ethanol, and isopropyl alcohol) are higher than values for chlorinated and petroleum compounds. Due to the higher indoor air background concentrations for these common solvents, the empirical attenuation factors for these compounds are significantly impacted by background sources even for cases with higher source strengths.

As shown in Figure B-11, there is less variability for the results for sample pairs with higher sub-slab soil vapor concentrations (i.e., greater than 100 µg/m3). The trends for petroleum and chlorinated compounds are similar and indicate empirical attenuation factors less than 0.001 with increasing source strength. A decreasing trend is evident in these data. This indicates that background sources are still affecting the empirical attenuation factor. However, this analysis suggests that a conservative attenuation factor of 0.001 may be used as a bounding estimate for corrective action planning.

An alternate approach to filter out background effects on the vapor intrusion data is to identify a data set of paired indoor air (corrected for outdoor air) and sub-slab soil vapor concentrations that show a statistically significant linear relationship. The rationale for this approach is that background sources result in a non-linear relationship between indoor air and sub-slab soil vapor.

5 Results for three samples with high sub-slab soil vapor concentrations (>2,000 µg/m3) are not shown on this figure. The empirical attenuation factors for these three samples range from 5E-5 to 3E-4.

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Plots of the relationships and correlations between indoor air and sub-slab soil vapor concentrations are shown in Attachment B and the calculated linear regression correlation coefficients are summarized in the table below.

Correlation Coefficients for Compounds with Detected Sub-slab Soil Vapor Concentrations

Compound Type All Data AFEMP 0.01 AFEMP 0.005 AFEMP 0.002 AFEMP 0.001

All Compounds -0.07 0.29 0.34 0.65 0.72

Chlorinated Compounds

-0.13 0.25 0.49 0.67 0.78

Petroleum Compounds

-0.15 0.33 0.34 0.64 INS

Non-Chlorinated Solvents

-0.18 -1.7 -0.91 INS INS

INS – Insufficient Data

Correlation is obtained only for high sub-slab soil vapor concentrations, at attenuation factors of 0.001 or less. Higher correlation coefficients are calculated for chlorinated compounds and slightly lower values for petroleum compounds. However, the correlations for non-chlorinated compounds are poor. These results are consistent with the conclusion that AFVI = 0.001 may be used as a conservative upper-bound estimate of the vapor intrusion attenuation factor that was obtained by evaluating the attenuation factor as a function of sub-slab soil vapor concentration.

5. SUMMARY

The results of this multiple-lines-of-evidence evaluation of the vapor intrusion pathway at the Site indicate:

• Indoor air and outdoor air concentrations of VOCs detected at the properties evaluated are generally indistinguishable from background and within the typical ranges of background concentrations reported in the literature.

• The multiple regression analysis results indicate that indoor air concentrations are generally correlated with outdoor or garage air concentrations and/or largely influenced by indoor sources. The statistical analysis indicates that the sub-slab soil vapor

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concentrations do not have a significant effect on indoor air concentrations as compared to these other sources.

• Spatial and temporal variability are evident in the indoor air results. Such variability is typically observed in vapor intrusion data owing to differences in building characteristics, owner/occupant habits, and seasonal variations in temperature and other climatic conditions. This analysis also indicates that the presence of indoor sources of VOCs likely contributes to the variability in indoor air concentrations detected at the Site.

• The multiple linear regression analyses for benzene and carbon tetrachloride showed the highest correlation values, indicating that a large proportion of the variability in indoor air concentrations for those constituents can be explained by garage and outdoor air concentrations. The regressions for other constituents showed lower correlation values and, therefore, weaker linear relationships with garage and outdoor air concentrations and sub-slab soil vapor, which suggests that the variability in indoor air concentrations is predominantly due to indoor sources.

• Evaluation of the relationship between the empirical attenuation factor and sub-slab soil vapor concentrations (i.e., source strength) shows that there is less variability in the results for sample pairs with higher sub-slab soil vapor concentrations (i.e., greater than 100 µg/m3); although a decreasing trend with increasing source strength is evident even at these higher sub-slab soil vapor concentrations. By minimizing the influence of background sources on indoor air concentrations, a linear trend is observed between indoor air and increasing sub-slab soil vapor concentrations for petroleum and chlorinated compounds for empirical attenuation factors less than 0.001. This analysis suggests that an attenuation factor of 0.001 may be used as a conservative upper-bound estimate for corrective action planning.

6. REFERENCES

California Air Resource Board (CARB), 2005. Indoor Air Pollution in California, Report to the California Legislature. July 2005.

Desert Research Institute (DRI), 2009. Harbor Community Monitoring Study (HCMS) Saturation Monitoring, Final Report. Prepared for State of California Air Resources Board Research Division, May 15, 2009.

Doucette, W.J., A.J. Hall, and K.A. Gorder, 2010. Emissions of 1,2-Dichloroethane from Holiday Decorations as a Source of Indoor Air Contamination. Groundwater Monitoring & Remediation, 30(1), Winter 2010. pp 65-71.

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APPENDIX B Vapor Intrusion Evaluation

B-20

Gilbert, R.O., 1987. Statistical Methods for Environmental Pollution Monitoring, Van Nostrand Reinhold Company. New York, NY.

Hodgson, A.T. and Levin, H., 2003. Volatile Organic Compounds in Indoor Air: A Review of Concentrations Measured in North America Since 1990. Lawrence Berkeley National Laboratory Report LBNL-51715. April 21, 2003.

Interstate Technology and Regulatory Council (ITRC), 2007. Vapor Intrusion Pathway: A Practical Guide. ITRC, January 2007.

Jenkins, R.A., M.R. Guerin, and B.A. Tomkins, 2000. The Chemistry of Environmental Tobacco Smoke: Composition and Measurement, Second Edition. Indoor Air Research Series, CRC Press.

Jia, C. and S. Batterman, 2010. A Critical Review of Naphthalene Sources and Exposures Relevant to Indoor and Outdoor Air. Int. J. Environ. Res. Public Health. Vol. 7, 2903-2939.

Kurtz, J.P., Wolfe, E.M., Woodland, A.K., and Foster, S.J., 2010. Evidence for increasing indoor sources of 1,2-dichloroethane since 2004 at two Colorado residential vapor intrusion sites. Ground Water Monitoring & Remediation: 30(3):107-112.

Offermann, F.J., S.A. Loiselle, A.T. Hodgson, L.A. Gundel, and J.M. Daisey, 1991. A Pilot Study to Measure Indoor Concentrations and Emission Rates of Polycyclic Aromatic Hydrocarbons. Indoor Air, 4, 497-512

Sexton, K., Adgate, J.L., Ramachandran, G., Pratt, G.C., Mongin, S.J., Stock, T.H., and Morandi, M.T., 2004. Comparison of Personal, Indoor, and Outdoor Exposures to Hazardous Air Pollutants in Three Urban Communities. Environmental Science and Technology 38(2): 423-430.

South Coast Air Quality Management District (SCAQMD), 2008. Multiple Air Toxics Exposure Study in the South Coast Air Basin (MATES-III), Final Report. September 2008.

USEPA, 2011. Background Indoor Air Concentrations of Volatile Organic Compounds in North American Residences (1990-2005): A Compilation of Statistics for Assessing Vapor Intrusion. Office of Solid Waste and Emergency Response, U.S. Environmental Protection Agency, EPA 530-R-10-001. June 2011.

USEPA, 2012. EPA’s Vapor Intrusion Database: Evaluation and Characterization of Attenuation Factors for Chlorinated Volatile Organic Compounds and Residential Buildings. Office of Solid Waste and Emergency Response, U.S. Environmental Protection Agency, EPA 530-R-10-002. March 16, 2012.

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APPENDIX B Vapor Intrusion Evaluation

B-21

Van Winkle, M.R. and Scheff, P.A., 2001. Volatile Organic Compounds, Polycyclic Aromatic Hydrocarbons and Elements in the Air of Ten Urban Homes. Indoor Air, 11(1): 49-64.

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APPENDIX B Vapor Intrusion Evaluation

B-22

Tables

Table B-1 – Sub-slab Soil Vapor and Indoor Air Sampling Properties

Table B-2 – Sub-slab Soil Vapor Analytical Results (CD Only)

Table B-3 – Sub-slab Soil Vapor Risk-Based Screening Level Evaluation

Table B-4 – Indoor, Garage, and Outdoor Air Analytical Results (CD Only)

Table B-5 – Statistical Summary of Air Analytical Results

Table B-6 – Background Sources of Chemicals in Indoor Air

Table B-7 – USEPA Indoor Air Background Summary

Table B-8 – Summary Statistics of Site Indoor Air Analytical Results

Table B-9 – Literature Summary of Regional Outdoor Air Background Concentrations

Table B-10 – Summary Statistics of Site Outdoor Air Analytical Results

Table B-11 – Multiple Linear Regression Analysis Input Data

Table B-12 – Multiple Linear Regression Analysis Input Data Summary Statistics

Table B-13 – Multiple Linear Regression Analysis Results

Table B-14 – Full and Reduced Model Multiple Linear Regression Analysis Results

Figures

Figure B-1 – Vapor Intrusion Evaluation Properties

Figure B-2 – Vapor Intrusion Evaluation Sampling Frequency

Figure B-3 – Benzene Sub-slab Soil Vapor Analytical Results

Figure B-4 – Naphthalene Sub-slab Soil Vapor Analytical Results

Figure B-5 – Benzene Indoor Air Analytical Results

Figure B-6 – Naphthalene Indoor Air Analytical Results

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APPENDIX B Vapor Intrusion Evaluation

B-23

Figure B-7 – Comparison of Indoor Air Results to Literature Background Concentrations

Figure B-8 - Comparison of Outdoor Air Results to Literature Background Concentrations

Figure B-9 – Multiple Linear Regression Conceptual Model

Figure B-10 – Correlation Between Empirical Attenuation Factor and Sub-Slab Soil Vapor Concentration – All Data

Figure B-11 – Correlation Between Empirical Attenuation Factor and Sub-Slab Soil Vapor Concentration – Sub-Slab Soil Vapor Concentrations Greater than 100 µg/m3

Attachments

Attachment A – Correlation Plots for Log-Transformed Data

Attachment B – Single Correlation Plots

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APPENDIX B Vapor Intrusion Evaluation

TABLES

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Table B-1Indoor Air Sample Locations Through August 31, 2013

Former Kast PropertyCarson, California

Page 1 of 6

Address24401 MARBELLA AVE 3/28/201224402 NEPTUNE AVE 10/3/2012 4/24/201324402 PANAMA AVE 12/20/2012 5/13/201324402 RAVENNA AVE 12/8/2010 5/24/201224403 NEPTUNE AVE 11/8/2012 4/23/201324403 RAVENNA AVE 3/27/201324405 MARBELLA AVE 3/21/201224406 MARBELLA AVE 3/8/2012 8/14/201324406 NEPTUNE AVE 11/12/2010 1/25/201224406 PANAMA AVE 8/15/2012 6/6/201324409 NEPTUNE AVE 5/3/2012 7/10/201324409 RAVENNA AVE 3/20/2013 8/8/201324410 PANAMA AVE 7/18/201224411 MARBELLA AVE 4/26/201224411 PANAMA AVE 12/13/2012 5/6/201324413 NEPTUNE AVE 10/10/2012 5/30/201324413 RAVENNA AVE 9/19/2012 5/9/201324416 NEPTUNE AVE 7/12/201224416 PANAMA AVE 5/17/201224416 RAVENNA AVE 1/31/2013 7/18/201324419 NEPTUNE AVE 8/2/2012 5/28/201324419 RAVENNA AVE 6/14/2012 4/11/201324420 PANAMA AVE 12/6/2012 7/31/201324421 PANAMA AVE 3/13/2013 7/22/201324422 MARBELLA AVE 7/11/201224422 NEPTUNE AVE 1/19/2011 8/7/201324422 RAVENNA AVE 12/19/2012 6/20/201324423 MARBELLA AVE 6/20/201224423 NEPTUNE AVE 10/11/2012 5/7/201324423 RAVENNA AVE 10/25/2012 7/17/201324426 MARBELLA AVE 2/23/201224426 NEPTUNE AVE 10/29/2010 4/18/201324426 PANAMA AVE 12/5/2012 6/13/201324426 RAVENNA AVE 2/27/2013 7/16/201324427 MARBELLA AVE 4/5/201224427 PANAMA AVE 5/23/201324429 NEPTUNE AVE 1/13/2011 8/6/201324429 RAVENNA AVE 7/29/201324430 PANAMA AVE 11/29/2012 5/6/201324431 PANAMA AVE 1/16/2013 5/28/201324432 MARBELLA AVE 3/15/201224433 MARBELLA AVE 3/1/201224436 PANAMA AVE 6/27/2012

Sample Date

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Table B-1Indoor Air Sample Locations Through August 31, 2013

Former Kast PropertyCarson, California

Page 2 of 6

Address Sample Date24502 MARBELLA AVE 5/3/2012 8/15/201324502 NEPTUNE AVE 1/24/2013 7/11/201324502 PANAMA AVE 1/17/201324502 RAVENNA AVE 10/6/2010 7/25/201224503 MARBELLA AVE 3/29/201224503 NEPTUNE AVE 4/12/2012 6/26/201324503 PANAMA AVE 8/9/201224503 RAVENNA AVE 11/7/201224506 MARBELLA AVE 3/14/2012 7/1/201324508 NEPTUNE AVE 1/27/201124508 PANAMA AVE 4/25/201224508 RAVENNA AVE 3/28/201324509 NEPTUNE AVE 7/5/2012 3/13/201324509 PANAMA AVE 2/6/2013 6/27/201324509 RAVENNA AVE 4/11/2012 8/14/201324512 MARBELLA AVE 1/19/201224512 NEPTUNE AVE 7/25/201324512 PANAMA AVE 11/14/2012 6/12/201324513 NEPTUNE AVE 8/1/2012 6/4/201324513 RAVENNA AVE 5/24/2012 7/24/201324516 MARBELLA AVE 5/23/201224517 MARBELLA AVE 3/23/2012 8/19/201324518 NEPTUNE AVE 4/25/2013 7/15/201324518 RAVENNA AVE 7/11/201224519 NEPTUNE AVE 6/28/201224519 PANAMA AVE 6/5/201324522 MARBELLA AVE 4/19/201224522 NEPTUNE AVE 4/4/2012 6/5/201324522 PANAMA AVE 3/21/201324522 RAVENNA AVE 8/22/2012 5/20/201324523 MARBELLA AVE 4/26/2012 8/27/201324523 NEPTUNE AVE 10/3/2012 2/21/201324523 RAVENNA AVE 8/23/2010 3/24/201124526 MARBELLA AVE 4/18/201224528 NEPTUNE AVE 3/7/2012 8/19/201324529 NEPTUNE AVE 3/1/2012 8/22/201324529 PANAMA AVE 5/16/201224529 RAVENNA AVE 8/17/2011 8/1/201324532 MARBELLA AVE 4/4/2012 8/22/201324532 NEPTUNE AVE 2/28/2013 6/18/201324532 PANAMA AVE 5/9/2012 8/20/201324532 RAVENNA AVE 11/15/2012 7/30/201324533 NEPTUNE AVE 3/6/2013 7/2/2013

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Table B-1Indoor Air Sample Locations Through August 31, 2013

Former Kast PropertyCarson, California

Page 3 of 6

Address Sample Date24533 PANAMA AVE 9/19/2012 7/23/201324533 RAVENNA AVE 9/26/2012 8/26/201324602 MARBELLA AVE 5/31/2012 8/26/201324602 NEPTUNE AVE 3/3/2011 6/28/201224602 RAVENNA AVE 10/4/2012 4/9/201324603 MARBELLA AVE 1/14/2010 10/14/201024603 NEPTUNE AVE 3/6/2013 7/17/201324603 PANAMA AVE 10/18/201224603 RAVENNA AVE 5/31/201224606 MARBELLA AVE 1/12/201224608 NEPTUNE AVE 5/17/2012 8/29/201324608 PANAMA AVE 4/5/201224608 RAVENNA AVE 5/16/2012 8/21/201324609 NEPTUNE AVE 12/9/2010 5/2/201324609 PANAMA AVE 2/17/201124609 RAVENNA AVE 9/20/2012 4/29/201324612 MARBELLA AVE 5/9/201224612 NEPTUNE AVE 3/10/2011 8/12/201324612 PANAMA AVE 1/24/2013 5/16/201324612 RAVENNA AVE 10/31/2012 6/24/201324613 MARBELLA AVE 10/10/2012 4/18/201324613 NEPTUNE AVE 5/10/2012 8/28/201324613 PANAMA AVE 2/9/2011 9/12/201224613 RAVENNA AVE 5/19/201124616 MARBELLA AVE 3/17/2011 8/5/201324617 MARBELLA AVE 5/2/201224618 NEPTUNE AVE 1/26/2011 7/26/201224618 PANAMA AVE 4/18/201224618 RAVENNA AVE 2/14/2013 6/24/201324619 NEPTUNE AVE 7/12/201224619 PANAMA AVE 2/10/2011 12/7/201124619 RAVENNA AVE 2/28/2013 7/18/201324622 MARBELLA AVE 11/15/2012 6/6/201324622 NEPTUNE AVE 3/29/2012 8/20/201324623 MARBELLA AVE 1/27/201124623 NEPTUNE AVE 3/30/201124627 MARBELLA AVE 5/10/201224628 MARBELLA AVE 6/22/2011 10/26/201124628 NEPTUNE AVE 2/6/2013 6/18/201324629 NEPTUNE AVE 2/2/201124632 NEPTUNE AVE 2/7/2013 8/8/201324700 MARBELLA AVE 3/14/201324702 PANAMA AVE 2/23/2011 6/11/2013

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Table B-1Indoor Air Sample Locations Through August 31, 2013

Former Kast PropertyCarson, California

Page 4 of 6

Address Sample Date24703 MARBELLA AVE 4/19/2012 7/10/201324703 NEPTUNE AVE 4/25/201324703 RAVENNA AVE 3/7/2013 7/23/201324706 MARBELLA AVE 2/20/2013 6/25/201324706 RAVENNA AVE 4/24/201324707 MARBELLA AVE 9/6/2012 4/17/201324708 PANAMA AVE 8/15/2012 5/14/201324709 NEPTUNE AVE 8/9/2012 5/21/201324709 PANAMA AVE 3/7/2012 6/26/201324709 RAVENNA AVE 3/20/2013 8/13/201324710 MARBELLA AVE 5/2/201224712 NEPTUNE AVE 1/17/2013 6/11/201324712 PANAMA AVE 2/24/201124712 RAVENNA AVE 6/9/201124713 MARBELLA AVE 3/7/2013 7/29/201324713 PANAMA AVE 4/4/201324713 RAVENNA AVE 7/31/201324715 NEPTUNE AVE 2/17/2011 8/6/201324716 MARBELLA AVE 5/23/2012 7/24/201324716 RAVENNA AVE 2/29/201224717 MARBELLA AVE 7/25/2012 5/22/201324718 NEPTUNE AVE 2/23/201224718 PANAMA AVE 10/17/2012 5/15/201324719 NEPTUNE AVE 7/18/201224719 PANAMA AVE 9/27/201224719 RAVENNA AVE 11/28/201224722 MARBELLA AVE 6/6/2012 4/10/201324722 NEPTUNE AVE 4/12/201224722 PANAMA AVE 4/25/201224722 RAVENNA AVE 11/8/2012 5/1/201324723 MARBELLA AVE 6/20/201224723 RAVENNA AVE 11/7/2012 4/22/201324725 NEPTUNE AVE 6/21/201224726 MARBELLA AVE 12/13/201224726 RAVENNA AVE 12/19/201224728 NEPTUNE AVE 5/30/201324728 PANAMA AVE 11/1/2012 6/17/201324729 NEPTUNE AVE 10/18/201224729 RAVENNA AVE 8/23/2012 6/19/201324732 MARBELLA AVE 1/10/2013 5/22/201324732 NEPTUNE AVE 3/9/201124732 PANAMA AVE 6/13/201224732 RAVENNA AVE 6/21/2012

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Table B-1Indoor Air Sample Locations Through August 31, 2013

Former Kast PropertyCarson, California

Page 5 of 6

Address Sample Date24733 MARBELLA AVE 6/7/2012 4/3/201324733 PANAMA AVE 2/20/2013 7/22/201324733 RAVENNA AVE 7/26/201224735 NEPTUNE AVE 11/14/2012 6/10/201324736 RAVENNA AVE 6/3/201324737 MARBELLA AVE 12/6/2012 5/23/201324738 NEPTUNE AVE 2/22/2012 8/27/201324738 PANAMA AVE 9/6/2012 6/10/201324739 NEPTUNE AVE 9/20/2012 4/29/201324739 PANAMA AVE 10/25/2012 6/12/201324739 RAVENNA AVE 3/2/2011 7/2/201324741 MARBELLA AVE 6/14/201224743 RAVENNA AVE 2/13/2013 7/9/201324744 MARBELLA AVE 3/14/201224748 RAVENNA AVE 9/13/2012 4/15/201324749 RAVENNA AVE 12/16/2010 8/5/201324752 RAVENNA AVE 7/19/201224803 NEPTUNE AVE 1/31/2013 7/11/201324803 PANAMA AVE 1/30/2013 8/7/201324809 NEPTUNE AVE 7/19/201224809 PANAMA AVE 3/23/201224812 PANAMA AVE 12/5/2012 4/30/201324813 PANAMA AVE 8/22/2012 6/3/201324815 NEPTUNE AVE 3/28/201224818 PANAMA AVE 6/7/2012 3/28/201324819 PANAMA AVE 4/20/2011 8/21/201324822 PANAMA AVE 6/19/201324828 PANAMA AVE 9/12/2012 4/15/201324829 PANAMA AVE 5/8/201324832 PANAMA AVE 9/27/2012 5/15/201324833 PANAMA AVE 11/28/2012 5/8/201324838 PANAMA AVE 5/7/201324904 NEPTUNE AVE 9/13/2012 6/17/201324912 NEPTUNE AVE 3/15/2012301 244TH ST 1/30/2013 6/25/2013305 244TH ST 10/17/2012 4/23/2013317 244TH ST 3/23/2011321 244TH ST 3/21/2013 8/1/2013327 244TH ST 2/13/2013 7/30/2013331 244TH ST 8/29/2012 4/30/2013337 244TH ST 11/11/2010341 244TH ST 8/1/2012 6/4/2013344 249TH ST 1/23/2013 5/13/2013

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Table B-1Indoor Air Sample Locations Through August 31, 2013

Former Kast PropertyCarson, California

Page 6 of 6

Address Sample Date345 249TH ST 11/1/2012 4/22/2013347 244TH ST 12/20/2012 5/9/2013348 248TH ST 8/25/2010 1/12/2011348 249TH ST 8/16/2012351 244TH ST 10/22/2010 4/11/2013352 249TH ST 2/9/2011353 249TH ST 2/3/2011 7/9/2013354 248TH ST 6/13/2012357 244TH ST 11/29/2012 6/20/2013357 249TH ST 8/2/2012 6/13/2013358 249TH ST 3/8/2012 8/28/2013360 248TH ST 7/5/2012361 244TH ST 11/11/2010 8/13/2013362 249TH ST 2/27/2013363 249TH ST 7/25/2013364 248TH ST 4/3/2013367 249TH ST 10/24/2012 5/1/2013368 249TH ST 8/8/2012 5/20/2013373 249TH ST 4/11/2012374 248TH ST 10/4/2012 4/8/2013377 244TH ST 6/27/2012377 249TH ST 8/23/2012 5/14/2013378 249TH ST 5/11/2011 2/23/2012383 249TH ST 6/6/2012 4/17/2013402 249TH ST 3/21/2012 7/1/2013412 249TH ST 9/26/2012 5/21/2013

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Table B-2Sub-Slab Soil Vapor Results

Former Kast Property

Carson, California

Residential Properties Sampled Through August 31, 2013

Page 1 of 235

Oxygen

Oxygen/Argon

Carbon Dioxide

AcetoneN

aphthaleneEthanol

2-Butanone (M

ethyl Ethyl Ketone)

ChloroformTetrachloro-

etheneToluene

BenzeneFreon 12

Methane

HeliumCarbon

DisulfideM

OL %

MO

L %M

OL %

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

MO

L %M

OL %

UG

/M3

100.00%100.00%

92.56%52.63%

49.98%18.72%

17.61%16.54%

8.00%7.84%

7.80%6.94%

6.17%5.34%

4.80%Sam

ple IDAddress

Sample D

ateSam

ple Time

LocationM

24401 SVH24401 M

ARBELLA AVE2010-07-29

09:17House

210.09

25< 6

154

< 5.6170

< 4.3< 3.6

< 5.6< 0.00023

< 0.11< 3.6

M24401 SVG

24401 MARBELLA AVE

2010-07-2910:15

Garage

200.085

34< 6.2

143.9

< 5.7< 7.9

< 4.45.9

< 5.8< 0.00023

< 0.12< 3.6

M24401 SVB

24401 MARBELLA AVE

2010-07-2910:52

Back21

0.07629

< 7.2< 10

14< 6.7

< 9.2< 5.1

< 4.4< 6.8

< 0.00027< 0.14

< 4.2M

24401SVH24401 M

ARBELLA AVE2012-03-29

14:46House

210.085

210.65 J, b

< 6.1< 9.6

< 417

5.4< 2.6

< 4< 0.00016

< 0.082< 10

M24401SVB

24401 MARBELLA AVE

2012-03-2915:03

Back21

0.1530

0.45 J, b< 5.7

< 9< 3.7

< 5.2< 2.9

< 2.45.5

< 0.00015< 0.076

< 9.5M

24401SVG24401 M

ARBELLA AVE2012-03-29

15:14G

arage20

1.123

0.91 J, b< 6.2

< 9.7< 4

< 5.6< 3.1

< 2.6< 4.1

< 0.00016< 0.082

< 10M

24401SVGD

24401 MARBELLA AVE

2012-03-2915:14

Garage

201.1

381.3 J, b

< 6.2< 9.7

4.29

< 3.1< 2.6

< 4.1< 0.00016

< 0.082< 10

N24402SVH

24402 NEPTU

NE AVE

2010-07-0114:03

House20

0.48110

< 2.315

16< 5.7

< 7.94.4

< 3.7< 5.8

< 0.00023< 0.12

< 3.6N

24402SVB24402 N

EPTUN

E AVE2010-07-01

14:47Back

20< 0.022

252.3 J

8.6< 3.3

< 5.5< 7.6

14< 3.6

< 5.5< 0.00022

< 0.11< 3.5

N24402SVG

24402 NEPTU

NE AVE

2010-07-0115:31

Garage

200.23

30< 2.3

104.2

< 5.6< 7.8

< 4.35.1

< 5.7< 0.00023

< 0.11< 3.6

N24402SVB

24402 NEPTU

NE AVE

2012-10-0415:08

Back20

0.46< 33

< 0.7< 11

< 17< 6.9

< 9.6< 5.3

< 4.5< 7

< 0.00028< 0.14

< 18N

24402SVH24402 N

EPTUN

E AVE2012-10-04

15:13House

200.85

< 28< 0.59

< 9< 14

< 5.8< 8.1

< 4.5< 3.8

< 5.9< 0.00024

0.35< 15

N24402SVG

24402 NEPTU

NE AVE

2012-10-0416:03

Garage

200.52

< 292.7 J, b

< 9.3< 14

< 6< 8.4

< 4.6< 3.9

< 6.1< 0.00025

< 0.12< 15

N24402SVG

D24402 N

EPTUN

E AVE2012-10-04

16:03G

arage20

0.54< 29

< 0.61< 9.3

< 14< 6

< 8.4< 4.6

< 3.9< 6.1

< 0.00025< 0.12

< 15N

24402SVHA24402 N

EPTUN

E AVE2013-04-25

10:07House

220.087

290.69 J, b

< 7.9< 12

< 5.1< 7.1

43< 3.3

< 5.2< 0.00041

0.24< 13

N24402SVB

24402 NEPTU

NE AVE

2013-04-2510:09

Back22

0.9< 26

0.6 J, b< 8.4

< 13< 5.4

< 7.5< 4.2

< 3.5< 5.5

< 0.00022< 0.11

< 14N

24402SVBD24402 N

EPTUN

E AVE2013-04-25

10:09Back

210.89

< 260.55 J, b

< 8.3< 13

< 5.4< 7.5

< 4.1< 3.5

< 5.4< 0.00022

< 0.11< 14

N24402SVG

24402 NEPTU

NE AVE

2013-04-2510:35

Garage

220.41

< 28< 0.58

< 8.9< 14

< 5.8< 8

< 4.4< 3.8

< 5.8< 0.00024

< 0.12< 15

P24402SVB24402 PAN

AMA AVE

2010-11-1609:03

Back19

< 0.02248

1.1 J, b< 8.4

< 3.3< 5.5

< 7.6< 4.2

< 3.6< 5.5

< 0.00022< 0.11

< 3.5P24402SVG

24402 PANAM

A AVE2010-11-16

09:36G

arage21

< 0.02215

0.73 J, b< 8.4

< 3.3< 5.5

< 7.6< 4.2

< 3.6< 5.5

< 0.00022< 0.11

< 3.5P24402SVH

24402 PANAM

A AVE2010-11-16

10:18House

180.46

16< 0.34

< 9< 3.5

< 5.8< 8.1

< 4.5< 3.8

< 5.9< 0.00024

< 0.12< 3.7

P24402SVH24402 PAN

AMA AVE

2012-12-2109:47

House18

2.4< 29

3.5 J, b< 9.3

< 14< 6

< 8.4< 4.6

< 3.9< 6.1

< 0.00025< 0.12

< 15P24402SVG

24402 PANAM

A AVE2012-12-21

10:08G

arage21

0.21< 28

1.1 J, b< 9

< 14< 5.8

< 8.1< 4.5

< 3.8< 5.9

< 0.00024< 0.12

< 15P24402SVB

24402 PANAM

A AVE2012-12-21

10:14Back

180.048

< 282.1 J, b

< 9< 14

< 5.8< 8.1

< 4.5< 3.8

< 5.9< 0.00024

< 0.12< 15

P24402SVH24402 PAN

AMA AVE

2013-05-1414:48

House19

2.5< 32

11 J, b< 10

< 16< 6.7

< 9.2< 5.1

< 4.4< 6.8

< 0.000270.2

< 17P24402SVB

24402 PANAM

A AVE2013-05-14

14:52Back

180.076

< 30< 11

< 9.5< 15

7.2< 8.6

< 4.8< 4

< 6.2< 0.00025

< 0.13< 16

P24402SVG24402 PAN

AMA AVE

2013-05-1415:24

Garage

220.26

< 280.59 J, b

< 8.8< 14

< 5.7< 7.9

< 4.4< 3.7

< 5.8< 0.00023

< 0.12< 14

R24402SVB24402 RAVEN

NA AVE

2009-10-0215:36

Back18

2.117

< 2.9< 8.7

< 3.4240

< 7.8< 4.3

< 3.7< 5.7

< 0.00023< 3.6

R24402SVF24402 RAVEN

NA AVE

2009-10-0216:44

Front18

1.632

< 3< 9

< 3.5< 5.8

< 8.1< 4.5

< 3.8< 5.9

< 0.00024< 3.7

R24402SVB24402 RAVEN

NA AVE

2010-12-0911:14

Back20

1.215

0.55 J, b< 8.9

< 3.517

< 8< 4.5

< 3.8< 5.9

< 0.00024< 0.12

< 3.7R24402SVF

24402 RAVENN

A AVE2010-12-09

11:54Front

201.1

< 110.44 J, b

< 8.7< 3.4

< 5.6< 7.8

< 4.4< 3.7

< 5.7< 0.00023

< 0.12< 3.6

R24402SVFS24402 RAVEN

NA AVE

2010-12-0911:54

Front20.6

1.11< 17

< 1.3< 17

< 171.7

< 1.73

< 1.72.6

< 0.15< 17

R24402SVH24402 RAVEN

NA AVE

2010-12-1313:44

House21

0.4852

1 J, b< 8.4

6.6< 5.5

< 7.6< 4.2

< 3.6< 5.5

0.00024< 0.11

< 3.5R24402SVB

24402 RAVENN

A AVE2012-05-25

09:55Back

210.99

< 20< 0.33

< 6.2< 9.8

16< 5.6

< 3.1< 2.6

< 4.1< 0.00017

< 0.083< 10

R24402SVBD24402 RAVEN

NA AVE

2012-05-2509:55

Back21

1.1< 20

< 0.33< 6.2

< 9.816

< 5.6< 3.1

< 2.6< 4.1

< 0.00017< 0.083

< 10R24402SVF

24402 RAVENN

A AVE2012-05-25

10:28Front

201.8

< 18< 0.3

< 5.7< 8.9

4.2< 5.1

< 2.8< 2.4

< 3.7< 0.00015

< 0.076< 9.4

R24402SVH24402 RAVEN

NA AVE

2012-05-2510:54

House22

0.6231

0.32 J, b11

< 9.5< 3.9

< 5.5< 3

< 2.6< 4

< 0.00016< 0.08

< 10N

24403SVF24403 N

EPTUN

E AVE2010-06-25

09:26Front

181.9

33< 2.3 U

J11

< 3.47.1

< 7.9< 4.4

< 3.7< 5.8

< 0.00023< 0.12

< 3.6N

24403SVH24403 N

EPTUN

E AVE2010-06-25

10:04House

200.095

26< 2.4 U

J16

4.6< 5.8

< 8< 4.5

< 3.8< 5.9

< 0.00024< 0.12

21N

24403SVB24403 N

EPTUN

E AVE2010-06-25

11:12Back

200.096

58< 2.2 U

J18

21< 5.5

< 7.7< 4.2

< 3.6< 5.6

< 0.00023< 0.11

< 3.5N

24403SVH24403 N

EPTUN

E AVE2012-11-09

09:48House

210.19

< 281.3 J, b

< 8.8< 14

< 5.7< 7.9

< 4.4< 3.7

< 5.8< 0.00023

< 0.12< 14

N24403SVB

24403 NEPTU

NE AVE

2012-11-0910:18

Back22

0.23< 28

< 0.59< 9

< 14< 5.8

< 8.1< 4.5

< 3.8< 5.9

< 0.00024< 0.12

< 15N

24403SVBD24403 N

EPTUN

E AVE2012-11-09

10:18Back

210.22

< 283.9 J, b

< 8.8< 14

< 5.7< 7.9

< 4.4< 3.7

< 5.8< 0.00023

< 0.12< 14

N24403SVF

24403 NEPTU

NE AVE

2012-11-0910:31

Front19

1.5< 28

< 0.58< 8.8

< 14< 5.7

< 7.9< 4.4

< 3.7< 5.8

< 0.00023< 0.12

< 14N

24403SVB24403 N

EPTUN

E AVE2013-04-24

10:19Back

210.15

< 260.91 J, b

< 8.4< 13

< 5.4< 7.5

< 4.2< 3.5

< 5.5< 0.00022

< 0.11< 14

N24403SVH

24403 NEPTU

NE AVE

2013-04-2410:29

House22

0.18< 28

2.1 J, b< 8.8

< 14< 5.7

< 8< 4.4

< 3.8< 5.8

< 0.00024< 0.12

< 15N

24403SVF24403 N

EPTUN

E AVE2013-04-24

10:49Front

200.98

280.81 J, b

< 8.8< 14

< 5.7< 8

< 4.4< 3.8

< 5.8< 0.00024

< 0.12< 15

R24403SVH24403 RAVEN

NA AVE

2010-06-1414:21

House19

1.2< 12

< 2.6< 9.8

< 3.8< 6.4

< 8.8< 4.9

< 4.2< 6.4

< 0.000260.14

4.7R24403SVF

24403 RAVENN

A AVE2010-06-14

14:26Front

200.38

< 12< 2.5

< 9.3< 3.6

< 6< 8.4

< 4.7< 4

< 6.1< 0.00025

< 0.12< 3.9

R24403SVB24403 RAVEN

NA AVE

2010-06-1415:03

Back19

1.415 b

< 2.3< 8.8

< 3.5< 5.7

< 8< 4.4

5.9< 5.8

< 0.00024< 0.12

< 3.6R24403SVB

24403 RAVENN

A AVE2013-03-28

09:55Back

201.4

< 301.3 J, b

< 9.4< 15

< 6.1< 8.4

< 4.7< 4

< 6.2< 0.00025

< 0.12< 16

R24403SVBS24403 RAVEN

NA AVE

2013-03-2809:55

Back20.2

1.2923

< 0.84 U< 20 U

< 20 U< 2 U

< 2 U3.4

< 2 U< 2 U

< 0.16 U< 20 U

AnalyteU

nitsFrequency of D

etection

Page 234: Table Proposed Cleanup Levels Groundwater · 10/21/2013  · Table 04 Summery of PrsllMnery Cost ES11motee for Soleening Feasibility Study Former Kest Property Carson, CA GeotFnlenGOneullanle

Table B-2Sub-Slab Soil Vapor Results

Former Kast Property

Carson, California

Residential Properties Sampled Through August 31, 2013

Page 2 of 235

Oxygen

Oxygen/Argon

Carbon Dioxide

AcetoneN

aphthaleneEthanol

2-Butanone (M

ethyl Ethyl Ketone)

ChloroformTetrachloro-

etheneToluene

BenzeneFreon 12

Methane

HeliumCarbon

DisulfideM

OL %

MO

L %M

OL %

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

MO

L %M

OL %

UG

/M3

100.00%100.00%

92.56%52.63%

49.98%18.72%

17.61%16.54%

8.00%7.84%

7.80%6.94%

6.17%5.34%

4.80%Sam

ple IDAddress

Sample D

ateSam

ple Time

Location

AnalyteU

nitsFrequency of D

etection

R24403SVF24403 RAVEN

NA AVE

2013-03-2810:26

Front21

0.2758

1.2 J, b< 9.1

30< 5.9

< 8.2< 4.5

< 3.8< 6

< 0.00024< 0.12

< 15R24403SVFS

24403 RAVENN

A AVE2013-03-28

10:26Front

21.70.29

< 20 U< 0.85 U

< 20 U< 20 U

< 2 U< 2 U

< 2 U< 2 U

< 2 U< 0.16 U

< 20 UM

24405SVF24405 M

ARBELLA AVE2010-11-10

12:36Front

21< 0.025

240.91 J, b

< 9.3< 3.6

< 6< 8.3

< 4.6< 3.9

< 6.1< 0.00025

< 0.12< 3.8

M24405SVH

24405 MARBELLA AVE

2010-11-1014:10

House21

0.02421

0.43 J, b< 8.8

< 3.5< 5.7

120< 4.4

< 3.8< 5.8

< 0.00024< 0.12

< 3.6M

24405 SVF24405 M

ARBELLA AVE2012-03-22

15:21Front

210.03

220.87 J, b

< 6.3< 9.9

< 4.1< 5.7

< 3.2< 2.7

< 4.2< 0.00017

< 0.084< 10

M24405 SVH

24405 MARBELLA AVE

2012-03-2215:27

House21

0.1< 17

6.3 J, b< 5.5

< 8.6< 3.6

19< 2.8

< 2.33.8

< 0.00015< 0.073

< 9.1M

24406SVB24406 M

ARBELLA AVE2010-09-17

08:58Back

181.2

251.4 J, b

< 8.93.9

< 5.8< 8

< 4.5< 3.8

< 5.9< 0.00024

< 0.12< 3.7

M24406SVG

24406 MARBELLA AVE

2010-09-1709:39

Garage

20< 0.023

891.6 J, b

115.2

< 5.7< 7.9

< 4.4< 3.7

< 5.8< 0.00023

< 0.12< 3.6

M24406SVG

D24406 M

ARBELLA AVE2010-09-17

09:39G

arage20

< 0.023140

1.7 J, b20

11< 5.7

< 7.9< 4.4

< 3.7< 5.8

< 0.00023< 0.12

< 3.6M

24406SVH24406 M

ARBELLA AVE2010-09-17

10:22House

181.1

201.4 J, b

< 8.8< 3.4

< 5.7< 7.9

< 4.48.7

< 5.8< 0.00023

< 0.12< 3.6

M24406SVG

24406 MARBELLA AVE

2012-03-0915:13

Garage

210.24

< 191.8 J, b

< 6.1< 9.5

4< 5.5

< 3< 2.6

< 4< 0.00021

< 0.1< 10

M24406SVH

24406 MARBELLA AVE

2012-03-0915:40

House21

0.44< 19

1.4 J, b< 6.2

< 9.7< 4

< 5.6< 3.1

< 2.6< 4

< 0.00021< 0.1

< 10M

24406SVB24406 M

ARBELLA AVE2012-03-09

16:07Back

211

271.6 J, b

12< 8.8

< 3.6< 5

22 j< 2.4

< 3.7< 0.00021

< 0.11< 9.3

M24406SVBD

24406 MARBELLA AVE

2012-03-0916:07

Back20

1.2< 19

1.6 J, b< 6

< 9.3< 3.8

< 5.4< 3

< 2.5< 3.9

< 0.00022< 0.11

< 9.8M

24406SVB24406 M

ARBELLA AVE2013-08-15

13:41Back

202

300.97 J, b

< 9.4< 15

< 6.1< 8.4

< 4.7< 4

< 6.2< 0.00025

< 0.12< 16

M24406SVH

24406 MARBELLA AVE

2013-08-1513:53

House19

1.2< 27

1.5 J, b< 8.7

< 14< 5.6

< 7.8< 4.4

< 3.7< 5.7

< 0.00023< 0.12

< 14M

24406SVG24406 M

ARBELLA AVE2013-08-15

14:22G

arage21

0.37< 28

1.2 J, b< 9

< 146.4

< 8.1< 4.5

< 3.8< 5.9

< 0.00024< 0.12

< 15N

24406SVH24406 N

EPTUN

E AVE2010-04-29

13:45House

210.11

16< 6.2

27 b< 3.4

< 5.7< 7.9

< 4.4< 3.7

< 5.8< 0.00023

< 0.127

N24406SVF

24406 NEPTU

NE AVE

2010-04-2914:31

Front21

0.04522

< 6.433 b

4.4< 5.9

< 8.2< 4.5

< 3.8< 6

< 0.000240.59

< 3.8N

24406SVFD24406 N

EPTUN

E AVE2010-04-29

14:31Front

210.042

896.7 J

1200 E, b210

< 5.9< 8.2

9.4< 3.8

< 6< 0.00024

0.5718

N24406SVB

24406 NEPTU

NE AVE

2010-04-2915:22

Back21

< 0.02498

80 j25 b

< 3.642

< 8.26.4

7.6< 6

< 0.00024< 0.12

< 3.8N

24406SVH24406 N

EPTUN

E AVE2010-11-12

11:08House

210.21

< 110.71 J, b

< 8.6< 3.4

< 5.6< 7.8

< 4.3< 3.6

< 5.7< 0.00023

< 0.11< 3.6

N24406SVB

24406 NEPTU

NE AVE

2010-11-1212:22

Back21

0.099< 14

0.73 J, b< 11

< 4.3< 7

< 9.8< 5.4

< 4.6< 7.1

< 0.00029< 0.14

< 4.5N

24406SVBS24406 N

EPTUN

E AVE2010-11-12

12:22Back

21.7< 0.2

< 21< 1.6

< 21< 21

< 2.1< 2.1

2.2< 2.1

2.3< 0.2

< 21N

24406SVH24406 N

EPTUN

E AVE2012-01-26

11:02House

220.17

300.71 J, b

6.5< 9.5

< 3.9< 5.5

< 3< 2.6

< 40.00017

< 0.08< 10

N24406SVG

24406 NEPTU

NE AVE

2012-01-2611:44

Garage

230.08

38< 0.41

15< 12

< 5.1< 7

< 3.9< 3.3

< 5.10.00021

< 0.094< 13

N24406SVB

24406 NEPTU

NE AVE

2012-01-2611:59

Back22

0.08719

< 0.32< 6.2

< 9.7< 4

< 5.6< 3.1

< 2.6< 4

0.00017< 0.082

< 10N

24406SVBS24406 N

EPTUN

E AVE2012-01-26

11:59Back

21.6< 0.17 U

23< 1 U

< 18 U< 18 U

< 1.8 U< 1.8 U

< 1.8 U< 1.8 U

3.3< 0.17 U

< 18 UP24406SVB

24406 PANAM

A AVE2009-09-17

11:47Back

180.2

42< 3.2

< 9.75.1

< 6.3< 8.7

< 4.8< 4.1

< 6.4< 0.00026

< 4P24406SVB-D

24406 PANAM

A AVE2009-09-17

11:47Back

180.2

386 J

< 9.94.1

< 6.4< 9

< 5< 4.2

< 6.5< 0.00026

< 4.1P24406SVF

24406 PANAM

A AVE2009-09-17

13:22Front

190.74

130< 2.9

< 8.711

< 5.6< 7.8

< 4.3< 3.7

< 5.7< 0.00023

< 3.6P24406SVB

24406 PANAM

A AVE2010-07-21

09:22Back

192.2

25< 6

< 8.67.8

< 5.6< 7.8

4.4 b< 3.6

< 5.7< 0.00023

< 0.11< 3.6

P24406SVH24406 PAN

AMA AVE

2010-07-2110:50

House20

0.718

< 6.29

< 3.46.4

< 7.9< 4.4

< 3.7< 5.8

< 0.00023< 0.12

4.5P24406SVB

24406 PANAM

A AVE2011-02-14

10:31Back

201.4

38< 0.32

< 8.57.6

< 5.5< 7.7

< 4.2< 3.6

< 5.6< 0.00023

< 0.11< 3.5

P24406SVH24406 PAN

AMA AVE

2011-02-1411:14

House21

1< 11

< 0.34< 8.9

< 3.5< 5.8

< 8< 4.5

< 3.810

< 0.00024< 0.12

< 3.7P24406SVH

24406 PANAM

A AVE2012-08-16

15:05House

191.2

< 193.9 J, b

< 6< 9.3

< 3.8< 5.4

< 3< 2.5

4.9< 0.00016

< 0.079< 9.8

P24406SVF224406 PAN

AMA AVE

2012-08-1615:24

Front20

0.4543

2.2 J, b420

< 10< 4.3

< 5.96.6

< 2.8< 4.3

< 0.00018< 0.088

< 11P24406SVB

24406 PANAM

A AVE2012-08-16

15:48Back

182.8

231.4 J, b

11< 9.3

< 3.8< 5.4

< 3< 2.5

< 3.9< 0.00016

< 0.079< 9.8

P24406SVB D24406 PAN

AMA AVE

2012-08-1615:48

Back18

2.822

1.5 J, b< 6

< 9.3< 3.8

< 5.4< 3

< 2.5< 3.9

< 0.00016< 0.079

< 9.8P24406SVH

24406 PANAM

A AVE2013-06-07

14:42House

201.2

< 305.6 J, b

< 9.4< 15

< 6.1< 8.5

< 4.7< 4

< 6.2< 0.00025

< 0.12< 16

P24406SVF224406 PAN

AMA AVE

2013-06-0714:46

Front20

0.4730

2.7 J, b< 8.8

< 14< 5.7

< 85.9

< 3.8< 5.8

< 0.00024< 0.12

< 15P24406SVB

24406 PANAM

A AVE2013-06-07

15:14Back

182.4

< 27< 2.5

< 8.6< 13

< 5.5< 7.7

< 4.3< 3.6

< 5.6< 0.00023

< 0.11< 14

N24409SVG

24409 NEPTU

NE AVE

2010-07-1609:09

Garage

200.17

41< 6

169.9

< 5.6< 7.8

< 4.3< 3.6

< 5.7< 0.00023

< 0.11< 3.6

N24409SVB

24409 NEPTU

NE AVE

2010-07-1610:03

Back18

0.2634

< 6.414

5< 5.9

< 8.2< 4.6

< 3.9< 6

< 0.00024< 0.12

5.7N

24409SVBD24409 N

EPTUN

E AVE2010-07-16

10:03Back

180.26

50< 6.4

1817

< 5.9< 8.2

< 4.6< 3.9

< 6< 0.00024

< 0.12< 3.8

N24409SVH

24409 NEPTU

NE AVE

2012-05-0409:58

House21

< 0.01636

4.7 J, b19

< 9.3< 3.8

< 5.4< 3

< 2.5< 3.9

< 0.000160.1

< 9.8N

24409SVG24409 N

EPTUN

E AVE2012-05-04

10:05G

arage21

0.61< 18

0.78 J, b< 5.8

< 9.1< 3.8

< 5.2< 2.9

< 2.5< 3.8

< 0.00016< 0.078

< 9.6N

24409SVGS

24409 NEPTU

NE AVE

2012-05-0410:05

Garage

21.10.595

< 17 U< 0.73 U

< 17 U< 17 U

< 1.7 U< 1.7 U

< 1.7 U< 1.7 U

2.2< 0.16 U

< 17 UN

24409SVB24409 N

EPTUN

E AVE2012-05-04

10:39Back

200.75

< 180.58 J, b

< 5.6< 8.8

< 3.6< 5

< 2.8< 2.4

< 3.7< 0.00015

< 0.074< 9.3

N24409SVBS

24409 NEPTU

NE AVE

2012-05-0410:39

Back20

0.773< 16 U

< 0.69 U< 16 U

< 16 U1.7

< 1.6 U< 1.6 U

< 1.6 U2.2

< 0.15 U< 16 U

N24409SVB

24409 NEPTU

NE AVE

2013-07-1115:40

Back20

0.8251

< 0.86< 9.6

< 15< 6.2

< 8.6< 4.8

< 4< 6.3

< 0.00025< 0.13

< 16N

24409SVH24409 N

EPTUN

E AVE2013-07-11

15:43House

210.96

< 29< 0.83

< 9.2< 14

< 6< 8.3

< 4.6< 3.9

< 6< 0.00024

< 0.12< 15

Page 235: Table Proposed Cleanup Levels Groundwater · 10/21/2013  · Table 04 Summery of PrsllMnery Cost ES11motee for Soleening Feasibility Study Former Kest Property Carson, CA GeotFnlenGOneullanle

Table B-2Sub-Slab Soil Vapor Results

Former Kast Property

Carson, California

Residential Properties Sampled Through August 31, 2013

Page 3 of 235

Oxygen

Oxygen/Argon

Carbon Dioxide

AcetoneN

aphthaleneEthanol

2-Butanone (M

ethyl Ethyl Ketone)

ChloroformTetrachloro-

etheneToluene

BenzeneFreon 12

Methane

HeliumCarbon

DisulfideM

OL %

MO

L %M

OL %

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

MO

L %M

OL %

UG

/M3

100.00%100.00%

92.56%52.63%

49.98%18.72%

17.61%16.54%

8.00%7.84%

7.80%6.94%

6.17%5.34%

4.80%Sam

ple IDAddress

Sample D

ateSam

ple Time

Location

AnalyteU

nitsFrequency of D

etection

N24409SVG

24409 NEPTU

NE AVE

2013-07-1116:02

Garage

211.1

< 28< 0.79

< 8.8< 14

< 5.7< 8

< 4.4< 3.8

< 5.8< 0.00024

< 0.12< 15

R24409SVH24409 RAVEN

NA AVE

2010-08-0409:03

House19

0.9619

< 6.1< 8.7

3.4< 5.6

< 7.8< 4.4

< 3.7< 5.7

< 0.00023< 0.12

< 3.6R24409SVB

24409 RAVENN

A AVE2010-08-04

09:44Back

200.4

18< 6.4

< 9.2< 3.6

< 6< 8.3

< 4.6< 3.9

< 6< 0.00024

< 0.12< 3.8

R24409SVG24409 RAVEN

NA AVE

2010-08-0410:21

Garage

20< 0.023

22< 6.1

< 8.7< 3.4

< 5.6< 7.8

< 4.4< 3.7

< 5.7< 0.00023

< 0.12< 3.6

R24409SVH24409 RAVEN

NA AVE

2013-03-2114:41

House20

0.84< 29

< 0.61 PF< 9.3

< 14< 6

< 8.3< 4.6

< 3.9< 6.1

< 0.00025< 0.12

< 15R24409SVG

24409 RAVENN

A AVE2013-03-21

14:53G

arage21

0.15< 28

< 0.58 PF< 8.8

< 14< 5.7

< 8< 4.4

< 3.8< 5.8

< 0.00024< 0.12

< 15R24409SVG

D24409 RAVEN

NA AVE

2013-03-2114:53

Garage

210.15

< 28< 0.58 PF

< 8.8< 14

< 5.7< 8

< 4.4< 3.8

< 5.8< 0.00024

< 0.12< 15

R24409SVB24409 RAVEN

NA AVE

2013-03-2115:04

Back20

0.2235

< 0.61 PF< 9.3

< 14< 6

< 8.3< 4.6

< 3.9< 6.1

< 0.00025< 0.12

< 15R24409SVH

24409 RAVENN

A AVE2013-08-09

14:35House

201.7

< 271.4 J, b

< 8.7< 14

9.8< 7.8

< 4.4< 3.7

< 5.7< 0.00023

< 0.12< 14

R24409SVB24409 RAVEN

NA AVE

2013-08-0915:04

Back21

0.31< 30

0.87 J, b< 9.6

< 15< 6.2

< 8.6< 4.8

< 4.1< 6.3

< 0.00026< 0.13

< 16R24409SVG

24409 RAVENN

A AVE2013-08-09

15:08G

arage21

0.26< 28

1.5 J, b< 8.8

< 14< 5.7

< 7.9< 4.4

< 3.7< 5.8

< 0.00023< 0.12

< 14P24410SVH

24410 PANAM

A AVE2010-07-30

14:06House

201

18 b< 6.2

< 8.8< 3.4

< 5.7< 7.9

< 4.4< 3.7

< 5.8< 0.00023

< 0.12< 3.6

P24410SVB24410 PAN

AMA AVE

2010-07-3014:58

Back19

1.118 b

< 6.4< 9.1

< 3.6< 5.9

< 8.2< 4.6

< 3.9< 6

< 0.00024< 0.12

< 3.8P24410SVG

24410 PANAM

A AVE2010-07-30

15:02G

arage19

1.820 b

< 6.217

< 3.4< 5.7

< 7.9< 4.4

< 3.7< 5.8

< 0.00023< 0.12

< 3.6P24410SVG

S24410 PAN

AMA AVE

2010-07-3015:02

Garage

21.21.23

< 17< 1.4

< 17< 17

< 1.71.9

< 1.7< 1.7

2.2< 0.16

< 17P24410SVH

24410 PANAM

A AVE2012-07-19

09:52House

200.89

< 19< 3 PF

< 6.1< 9.6

< 4< 5.5

< 3.1< 2.6

< 4< 0.00016

< 0.082< 10

P24410SVG24410 PAN

AMA AVE

2012-07-1909:53

Garage

172.7

< 20< 3.1 PF

< 6.2< 9.8

< 4< 5.6

< 3.1< 2.6

< 4.1< 0.00017

< 0.083< 10

P24410SVGD

24410 PANAM

A AVE2012-07-19

09:53G

arage18

2.8< 20

< 3.1 PF< 6.2

< 9.8< 4

< 5.6< 3.1

< 2.6< 4.1

< 0.00017< 0.083

< 10P24410SVB

24410 PANAM

A AVE2012-07-19

10:25Back

191.8

< 18< 2.8 PF

< 5.6< 8.8

4.2< 5.1

< 2.8< 2.4

< 3.7< 0.00015

< 0.075< 9.3

M24411SVH

24411 MARBELLA AVE

2010-09-1313:36

House21

0.04444

2.2 J23

11< 5.8

19< 4.5

< 3.8< 5.9

< 0.00024< 0.12

5.1M

24411SVF24411 M

ARBELLA AVE2010-09-13

14:19Front

21< 0.025

692.8 J

226.8

< 6.2< 8.5

< 4.7< 4

< 6.2< 0.00025

< 0.136.4

M 24411 SVB2

24411 MARBELLA AVE

2011-02-0313:41

Back21

< 0.02413

25 b< 8.9

< 3.5< 5.8

< 848

8.4< 5.9

< 0.00024< 0.12

< 3.7M

24411SVF24411 M

ARBELLA AVE2012-04-27

13:58Front

21< 0.02

241.4 J, b

< 5.9< 9.2

< 3.8< 5.3

< 2.9< 2.5

< 3.8< 0.0002

< 0.098< 9.7

M24411SVFD

24411 MARBELLA AVE

2012-04-2713:58

Front22

< 0.02< 18

0.91 J, b< 5.9

< 9.2< 3.8

< 5.3< 2.9

< 2.5< 3.8

< 0.0002< 0.1

< 9.7M

24411SVB224411 M

ARBELLA AVE2012-04-27

14:24Back

210.041

212 J, b

< 5.5< 8.6

< 3.6< 5

< 2.8< 2.3

< 3.6< 0.0002

< 0.098< 9.1

P24411SVH24411 PAN

AMA AVE

2010-07-0609:31

House17

2.756

< 2.3 Q11

5< 5.6

< 7.8< 4.3

< 3.7< 5.7

< 0.00023< 0.12

66P24411SVG

24411 PANAM

A AVE2010-07-06

10:24G

arage19

1.916

2.7 J,Q, b

< 8.8< 3.4

< 5.774

19034

< 5.8< 0.00023

< 0.12< 3.6

P24411SVB24411 PAN

AMA AVE

2010-07-0611:08

Back19

1.221

< 2.3 Q< 8.8

< 3.4< 5.7

8.5< 4.4

< 3.7< 5.8

< 0.00023< 0.12

< 3.6P24411SVH

24411 PANAM

A AVE2012-12-14

10:07House

183.6

< 271 J, b

< 8.4< 13

< 5.5< 7.6

< 4.2< 3.6

< 5.5< 0.00022

0.18< 14

P24411SVB24411 PAN

AMA AVE

2012-12-1410:13

Back17

3.3< 29

1.6 J, b< 9.3

< 15< 6

< 8.4< 4.7

< 4< 6.1

< 0.00025< 0.12

< 15P24411SVBD

24411 PANAM

A AVE2012-12-14

10:13Back

183.1

< 281.1 J, b

< 8.9< 14

< 5.8< 8

6.5< 3.8

< 5.9< 0.00024

< 0.12< 15

P24411SVG24411 PAN

AMA AVE

2012-12-1410:50

Garage

201.7

< 271.9 J, b

< 8.5< 13

< 5.548

< 4.2< 3.6

< 5.6< 0.00023

< 0.11< 14

P24411SVG24411 PAN

AMA AVE

2013-05-0710:15

Garage

201.9

< 283.2 J, b

< 8.7< 14

< 5.771

< 4.4< 3.7

< 5.7< 0.00023

< 0.12< 14

P24411SVHA24411 PAN

AMA AVE

2013-05-0710:35

House19

0.41220

3.7 J, b< 8.9

< 14< 5.8

< 8< 4.4

< 3.8< 5.8

< 0.00024< 0.12

< 15P24411SVB

24411 PANAM

A AVE2013-05-07

10:55Back

192.2

372.2 J, b

< 8.5< 13

< 5.5< 7.6

< 4.2< 3.6

< 5.6< 0.00022

< 0.11< 14

P24411SVBD24411 PAN

AMA AVE

2013-05-0710:55

Back19

2.2< 27

1.3 J, b< 8.4

< 13< 5.5

< 7.6< 4.2

< 3.6< 5.5

< 0.00022< 0.11

< 14N

24413SVH24413 N

EPTUN

E AVE2010-11-01

09:20House

192.5

20< 1.4

11< 3.5

< 5.8< 8.1

< 4.5< 3.8

< 5.9< 0.00024

< 0.12< 3.7

N24413SVHD

24413 NEPTU

NE AVE

2010-11-0109:20

House19

2.515

< 1.4< 9

< 3.5< 5.8

< 8.1< 4.5

< 3.8< 5.9

< 0.00024< 0.12

< 3.7N

24413SVF24413 N

EPTUN

E AVE2010-11-01

10:01Front

200.18

120< 1.4

< 9< 3.5

< 5.8< 8.1

4.5< 3.8

< 5.9< 0.00024

< 0.12< 3.7

N24413SVB

24413 NEPTU

NE AVE

2010-11-0110:34

Back20

0.89< 11

< 1.412

< 3.6< 5.9

< 8.2< 4.6

< 3.9< 6

< 0.00024< 0.12

< 3.8N

24413SVB24413 N

EPTUN

E AVE2012-10-11

14:59Back

201.2

< 29< 0.61

< 9.3< 14

< 6< 8.4

< 4.6< 3.9

< 6.1< 0.00025

< 0.12< 15

N24413SVH

24413 NEPTU

NE AVE

2012-10-1115:15

House18

2.3< 29

< 0.6< 9.1

< 14< 5.9

< 8.2< 4.6

3.9< 6

< 0.00024< 0.12

< 15N

24413SVHD24413 N

EPTUN

E AVE2012-10-11

15:15House

182.4

< 29< 0.6

< 9.1< 14

< 5.9< 8.2

< 4.6< 3.9

< 6< 0.00024

< 0.12< 15

N24413SVF

24413 NEPTU

NE AVE

2012-10-1115:34

Front20

0.96100

3.4 J, b< 9.7

< 15< 6.3

< 8.81200

< 4.1< 6.4

< 0.00026< 0.13

< 16N

24413 SVH24413 N

EPTUN

E AVE2013-05-31

14:46House

201.2

336.3 J, b

< 8.9< 14

< 5.8< 8

< 4.4< 3.8

< 5.8< 0.00024

< 0.12< 15

N24413SVHS

24413 NEPTU

NE AVE

2013-05-3114:46

House21

1.224

< 0.71 U< 20 U

< 20 U< 2 U

< 2 U< 2 U

< 2 U< 2 U

< 0.16 U< 20 U

N24413 SVB

24413 NEPTU

NE AVE

2013-05-3115:09

Back19

2110

3 J, b< 9

< 14< 5.8

< 8.1< 4.5

< 3.8< 5.9

< 0.00024< 0.12

< 15N

24413 SVF24413 N

EPTUN

E AVE2013-05-31

15:22Front

201.7

823.2 J, b

< 9.6< 15

< 6.2< 8.6

56< 4

< 6.3< 0.00025

< 0.13< 16

R24413SVH24413 RAVEN

NA AVE

2010-07-1209:12

House19

1.218

< 2.4 Q< 9.1

< 3.6< 5.9

< 8.2< 4.5

< 3.8< 6

< 0.00024< 0.12

< 3.8R24413SVG

24413 RAVENN

A AVE2010-07-12

09:55G

arage20

0.08643

< 2.4 Q11

7.2< 5.9

< 8.2< 4.5

< 3.8< 6

< 0.00024< 0.12

< 3.8R24413SVB

24413 RAVENN

A AVE2010-07-12

10:38Back

1012

< 11< 2.3 Q

< 8.7< 3.4

< 5.6< 7.8

< 4.34.1

< 5.7< 0.00023

< 0.12< 3.6

R24413SVG24413 RAVEN

NA AVE

2012-09-2014:50

Garage

191.7

< 291.9 J, b

< 9.3< 14

< 6< 8.4

< 4.6< 3.9

< 6.1< 0.00025

< 0.12< 15

Page 236: Table Proposed Cleanup Levels Groundwater · 10/21/2013  · Table 04 Summery of PrsllMnery Cost ES11motee for Soleening Feasibility Study Former Kest Property Carson, CA GeotFnlenGOneullanle

Table B-2Sub-Slab Soil Vapor Results

Former Kast Property

Carson, California

Residential Properties Sampled Through August 31, 2013

Page 4 of 235

Oxygen

Oxygen/Argon

Carbon Dioxide

AcetoneN

aphthaleneEthanol

2-Butanone (M

ethyl Ethyl Ketone)

ChloroformTetrachloro-

etheneToluene

BenzeneFreon 12

Methane

HeliumCarbon

DisulfideM

OL %

MO

L %M

OL %

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

MO

L %M

OL %

UG

/M3

100.00%100.00%

92.56%52.63%

49.98%18.72%

17.61%16.54%

8.00%7.84%

7.80%6.94%

6.17%5.34%

4.80%Sam

ple IDAddress

Sample D

ateSam

ple Time

Location

AnalyteU

nitsFrequency of D

etection

R24413SVGD

24413 RAVENN

A AVE2012-09-20

14:50G

arage19

1.7< 29

0.83 J, b< 9.3

< 14< 6

< 8.4< 4.6

< 3.9< 6.1

< 0.00025< 0.12

< 15R24413SVH

24413 RAVENN

A AVE2012-09-20

15:06House

154.9

< 281 J, b

< 8.8< 14

< 5.7< 7.9

< 4.4< 3.7

< 5.8< 0.00023

< 0.12< 14

R24413SVB24413 RAVEN

NA AVE

2012-09-2015:31

Back12

9.834

1 J, b11

< 14< 5.6

< 7.8< 4.3

< 3.6< 5.7

< 0.00023< 0.11

< 14R24413SVG

24413 RAVENN

A AVE2013-05-10

14:45G

arage21

146

1.8 J, b< 8.7

< 14< 5.7

< 7.9< 4.4

< 3.7< 5.7

< 0.00023< 0.12

< 14R24413SVH

24413 RAVENN

A AVE2013-05-10

14:45House

184.6

308 J, b

< 8.8< 14

< 5.7< 8

< 4.4< 3.8

< 5.8< 0.00055

< 15R24413SVB

24413 RAVENN

A AVE2013-05-10

15:14Back

1013

< 311.4 J, b

< 9.8< 15

< 6.4< 8.8

< 4.9< 4.2

< 6.4< 0.00026

< 0.13< 16

N24416SVBA

24416 NEPTU

NE AVE

2011-01-2109:15

Back20

< 0.02336

< 1.3< 8.8

< 3.48

< 7.9< 4.4

< 3.7< 5.8

0.0014< 0.12

< 3.6N

24416SVF24416 N

EPTUN

E AVE2011-01-21

10:01Front

200.042

21< 1.3

< 8.6< 3.4

5.8< 7.8

< 4.3< 3.6

< 5.7< 0.00023

< 0.11< 3.6

N24416SVFD

24416 NEPTU

NE AVE

2011-01-2110:01

Front20

0.03624

2 J< 8.6

< 3.48.4

< 7.8< 4.3

< 3.6< 5.7

< 0.00023< 0.11

< 3.6N

24416SVH24416 N

EPTUN

E AVE2011-01-21

11:00House

190.42

712.1 J

< 9.17.7

< 5.9< 8.2

< 4.6< 3.9

< 6< 0.00024

< 0.12< 3.8

N24416SVH

24416 NEPTU

NE AVE

2012-07-1315:12

House14

4.2< 20

< 3.2< 6.4

< 105.2

< 5.8< 3.2

< 2.7< 4.2

< 0.00017< 0.086

< 11N

24416SVF24416 N

EPTUN

E AVE2012-07-13

15:37Front

200.55

22< 3.1

< 6.2< 9.7

< 4< 5.6

< 3.1< 2.6

< 4< 0.00016

< 0.082< 10

P24416SVH24416 PAN

AMA AVE

2010-09-1308:57

House17

3.725

2.8 J< 8.3

5.4< 5.4

< 7.5< 4.1

< 3.5< 5.4

< 0.00022< 0.11

< 3.4P24416SVF

24416 PANAM

A AVE2010-09-13

09:32Front

210.19

< 117.5 J

17< 3.4

< 5.6< 7.8

1327

< 5.7< 0.00023

< 0.11< 3.6

P24416SVFS24416 PAN

AMA AVE

2010-09-1309:32

Front21.6

0.225

0.86 J< 17

< 17< 1.7

< 1.7< 1.7

< 1.72.3

< 0.15< 17

P24416SVB24416 PAN

AMA AVE

2010-09-1310:13

Back20

0.1331

1.6 J< 9.1

< 3.6< 5.9

< 8.2< 4.6

< 3.9< 6

< 0.00024< 0.12

< 3.8P24416SVF

24416 PANAM

A AVE2012-05-18

09:55Front

210.29

< 200.68 J, b

< 6.2< 9.8

< 4< 5.6

< 3.1< 2.6

< 4.1< 0.00017

< 0.083< 10

P24416SVFD24416 PAN

AMA AVE

2012-05-1809:55

Front21

0.28< 20

0.61 J, b< 6.2

< 9.7< 4

< 5.6< 3.1

< 2.6< 4.1

< 0.00016< 0.082

< 10P24416SVH

24416 PANAM

A AVE2012-05-18

10:15House

183.4

< 180.6 J, b

< 5.8< 9

< 3.7< 5.2

< 2.9< 2.4

< 3.8< 0.00017

< 0.083< 9.5

P24416SVB24416 PAN

AMA AVE

2012-05-1810:44

Back21

0.74< 19

0.42 J, b< 5.9

< 9.2< 3.8

< 5.3< 3

< 2.5< 3.9

< 0.00016< 0.078

< 9.8R24416SVF

24416 RAVENN

A AVE2009-09-19

14:20Front

171.9

185.8 J

2803.7

< 4.5< 6.3

8.2< 3

< 4.6< 0.00019

< 2.9R24416SVB

24416 RAVENN

A AVE2009-09-19

15:16Back

210.18

< 11< 2.8

< 8.5< 3.3

< 5.5< 7.7

< 4.2< 3.6

< 5.6< 0.00023

< 3.5R24416SVB

24416 RAVENN

A AVE2010-07-26

09:24Back

200.38

149.3 J, b

10012

< 5.7< 7.9

9.5< 3.7

< 5.8< 0.00023

< 0.1214

R24416SVH24416 RAVEN

NA AVE

2010-07-2610:00

House20

0.230

< 6< 8.6

3.8< 5.6

< 7.8< 4.3

< 3.6< 5.7

< 0.00023< 0.11

< 3.6R24416SVF

24416 RAVENN

A AVE2010-07-26

10:40Front

163.1

2605.8 J, b

3119

< 4.9< 6.8

< 3.8220

< 5< 0.0002

< 0.1< 3.1

R24416SVF24416 RAVEN

NA AVE

2010-10-2910:10

Front21

< 0.02428

< 1.4< 8.9

4.1< 5.8

< 8< 4.5

< 3.8< 5.9

0.00024< 0.12

< 3.7R24416SVH

24416 RAVENN

A AVE2013-02-01

09:44House

200.79

< 282.3 J, b

< 8.8< 14

< 5.7< 7.9

< 4.4< 3.7

< 5.8< 0.00036

< 0.18< 14

R24416SVB24416 RAVEN

NA AVE

2013-02-0109:54

Back22

0.1636

1.6 J, b< 9.1

< 14< 5.9

< 8.2< 4.6

< 3.9< 6

< 0.00024< 0.12

< 15R24416SVBD

24416 RAVENN

A AVE2013-02-01

09:54Back

210.16

410.81 J, b

< 9< 14

< 5.8< 8.1

< 4.5< 3.8

< 5.9< 0.00024

< 0.12< 15

R24416SVF224416 RAVEN

NA AVE

2013-02-0110:17

Front21

0.19< 28

0.74 J, b< 9

< 14< 5.8

< 8.1< 4.5

< 3.8< 5.9

< 0.00024< 0.12

< 15R24416SVH

24416 RAVENN

A AVE2013-07-19

09:41House

200.87

< 281.6 J, b

< 9< 14

< 5.8< 8.1

< 4.5< 3.8

< 5.9< 0.00024

< 0.12< 15

R24416SVF224416 RAVEN

NA AVE

2013-07-1909:45

Front19

1.6< 30

1.4 J, b< 9.5

< 15< 6.2

< 8.5< 4.7

< 4< 6.2

< 0.00025< 0.13

< 16R24416SVF2D

24416 RAVENN

A AVE2013-07-19

09:45Front

191.5

< 301.3 J, b

< 9.5< 15

< 6.2< 8.5

< 4.7< 4

< 6.2< 0.00025

< 0.13< 16

R24416SVB24416 RAVEN

NA AVE

2013-07-1910:23

Back21

0.391300 E

1 J, b< 8.8

< 14< 5.7

< 7.9< 4.4

< 3.7< 5.8

< 0.00023< 0.12

< 14N

24419SVH24419 N

EPTUN

E AVE2010-06-16

09:13House

210.17

53< 2.4

1413

< 5.8< 8

< 4.58.9

< 5.9< 0.00024

< 0.12< 3.7

N24419SVF

24419 NEPTU

NE AVE

2010-06-1610:13

Front20

0.1632

< 2.4< 8.9

< 3.5< 5.8

< 8< 4.5

< 3.8< 5.9

< 0.00024< 0.12

< 3.7N

24419SVB24419 N

EPTUN

E AVE2010-06-16

11:03Back

190.1

30< 2.4

104

< 5.9< 8.2

< 4.6< 3.9

< 6< 0.00024

< 0.12< 3.8

N24419SVH

24419 NEPTU

NE AVE

2012-08-0309:46

House21

0.2123

< 3< 6.1

< 9.5< 3.9

< 5.5< 3

< 2.6< 4

< 0.00016< 0.08

< 10N

24419SVF24419 N

EPTUN

E AVE2012-08-03

10:11Front

202.2

< 26< 4.1

92 j< 13

< 5.3< 7.4

< 4.1< 3.5

< 5.4< 0.00017

< 0.084< 14

N24419SVFS

24419 NEPTU

NE AVE

2012-08-0310:11

Front20.2

2.26< 21 U

< 0.88 U< 21 U

< 21 U< 2.1 U

< 2.1 U< 2.1 U

< 2.1 U< 2.1 U

< 0.17 U< 21 U

N24419SVB

24419 NEPTU

NE AVE

2012-08-0310:31

Back19

2.5< 19

< 3< 6

< 9.31400

< 5.4< 3

< 2.5< 3.9

< 0.00016< 0.079

< 9.8N

24419SVBS24419 N

EPTUN

E AVE2012-08-03

10:31Back

19.42.64

< 21 U< 0.86 U

< 21 U< 21 U

1100 D< 2.1 U

< 2.1 U< 2.1 U

< 2.1 U< 0.16 U

< 21 UN

24419SVH24419 N

EPTUN

E AVE2013-05-29

14:50House

220.16

42< 1.7

< 5.8< 9.1

< 3.8< 5.2

< 2.9< 2.4

< 3.8< 0.00021

< 0.1< 9.6

N24419SVB

24419 NEPTU

NE AVE

2013-05-2914:52

Back20

2.539

< 2.5< 8.7

< 14160

< 7.8< 4.3

< 3.7< 5.7

< 0.00023< 0.12

< 14N

24419SVBS24419 N

EPTUN

E AVE2013-05-29

14:52Back

19.92.49

23< 0.71 U

< 20 U< 20 U

130< 2 U

< 2 U< 2 U

< 2 U< 0.16 U

< 20 UN

24419SVF24419 N

EPTUN

E AVE2013-05-29

15:14Front

201.7

33< 2.6

10< 14

< 5.9< 8.2

< 4.5< 3.8

< 6< 0.00024

< 0.12< 15

R24419SVB24419 RAVEN

NA AVE

2009-09-2115:24

Back21

0.2< 7.4

< 1.9< 5.8

< 2.320

< 5.2< 2.9

< 2.5< 3.8

< 0.00016< 2.4

R24419SVF24419 RAVEN

NA AVE

2009-09-2116:49

Front21

< 0.019< 9.1

< 2.4< 7.2

< 2.820

< 6.5< 3.6

3.2< 4.7

< 0.00019< 0.096

< 3R24419SVF

24419 RAVENN

A AVE2010-07-12

14:47Front

210.043

18< 2.4 Q

< 9.1< 3.6

18< 8.2

< 4.6< 3.9

< 6< 0.00024

< 0.12< 3.8

R24419SVB24419 RAVEN

NA AVE

2010-07-1215:27

Back21

0.3739

< 2.4 Q15

136.1

< 8.2< 4.5

< 3.8< 6

< 0.00024< 0.12

< 3.8R24419 SVHA

24419 RAVENN

A AVE2011-02-09

14:06House

200.26

< 111.6 J, b

< 9.1< 3.6

< 5.9< 8.2

< 4.6< 3.9

< 6< 0.00024

< 0.12< 3.8

R24419 SVF24419 RAVEN

NA AVE

2011-02-0914:38

Front21

0.053< 11

1.2 J, b< 8.8

< 3.4< 5.7

< 7.9< 4.4

< 3.7< 5.8

< 0.00023< 0.12

< 3.6

Page 237: Table Proposed Cleanup Levels Groundwater · 10/21/2013  · Table 04 Summery of PrsllMnery Cost ES11motee for Soleening Feasibility Study Former Kest Property Carson, CA GeotFnlenGOneullanle

Table B-2Sub-Slab Soil Vapor Results

Former Kast Property

Carson, California

Residential Properties Sampled Through August 31, 2013

Page 5 of 235

Oxygen

Oxygen/Argon

Carbon Dioxide

AcetoneN

aphthaleneEthanol

2-Butanone (M

ethyl Ethyl Ketone)

ChloroformTetrachloro-

etheneToluene

BenzeneFreon 12

Methane

HeliumCarbon

DisulfideM

OL %

MO

L %M

OL %

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

MO

L %M

OL %

UG

/M3

100.00%100.00%

92.56%52.63%

49.98%18.72%

17.61%16.54%

8.00%7.84%

7.80%6.94%

6.17%5.34%

4.80%Sam

ple IDAddress

Sample D

ateSam

ple Time

Location

AnalyteU

nitsFrequency of D

etection

R24419 SVB24419 RAVEN

NA AVE

2011-02-0915:19

Back21

0.24< 11

0.55 J, b< 9.1

< 3.6< 5.9

< 8.2< 4.6

< 3.9< 6

< 0.00024< 0.12

< 3.8R24419SVF

24419 RAVENN

A AVE2012-06-15

14:37Front

210.067

< 19< 0.31

< 5.9< 9.2

11< 5.3

< 3< 2.5

< 3.9< 0.00016

< 0.078< 9.8

R24419SVFD24419 RAVEN

NA AVE

2012-06-1514:37

Front21

0.063< 19

< 0.31< 5.9

< 9.212

< 5.3< 3

< 2.5< 3.9

< 0.00016< 0.078

< 9.8R24419SVB

24419 RAVENN

A AVE2012-06-15

14:54Back

200.41

< 20< 0.32

< 6.2< 9.7

< 4< 5.6

< 3.1< 2.6

< 4.1< 0.00016

< 0.082< 10

R24419SVHA24419 RAVEN

NA AVE

2012-06-1515:19

House20

0.9< 19

< 0.32< 6.1

< 9.5< 3.9

< 5.5< 3

< 2.6< 4

< 0.00016< 0.08

< 10R24419SVHA

24419 RAVENN

A AVE2013-04-12

14:47House

200.81

< 28< 0.58

< 8.8< 14

< 5.7< 8

< 4.4< 3.8

< 5.8< 0.00024

< 0.12< 15

R24419SVF24419 RAVEN

NA AVE

2013-04-1214:52

Front22

0.06< 28

< 0.59< 9

< 1425

< 8.1< 4.5

< 3.8< 5.9

< 0.00024< 0.12

< 15R24419SVB

24419 RAVENN

A AVE2013-04-12

15:19Back

210.33

< 280.61 J, b

< 8.9< 14

< 5.8< 8

< 4.5< 3.8

< 5.9< 0.00024

< 0.12< 15

P24420SVB24420 PAN

AMA AVE

2010-09-1514:19

Back18

1.2< 11

< 1.310

< 3.4< 5.7

< 7.9< 4.4

< 3.7< 5.8

< 0.00023< 0.12

< 3.6P24420SVFA

24420 PANAM

A AVE2011-02-17

13:51Front

210.058

< 11< 0.33

< 8.7< 3.4

< 5.6< 7.8

< 4.3< 3.7

< 5.7< 0.00023

< 0.12< 3.6

P24420SVB24420 PAN

AMA AVE

2011-02-1714:25

Back21

0.3526

< 0.34< 8.8

< 3.4< 5.7

< 7.9< 4.4

< 3.7< 5.8

< 0.00023< 0.12

< 3.6P24420SVBD

24420 PANAM

A AVE2011-02-17

14:25Back

200.34

< 11< 0.34

< 8.8< 3.4

< 5.7< 7.9

< 4.4< 3.7

< 5.8< 0.00023

< 0.12< 3.6

P24420SVB24420 PAN

AMA AVE

2012-12-0710:00

Back21

0.5253

2.6 J, b< 8.8

18< 5.7

< 7.9< 4.4

< 3.7< 5.8

0.00028< 0.12

< 14P24420SVHA

24420 PANAM

A AVE2012-12-07

10:23House

210.38

< 271.4 J, b

34< 13

< 5.5< 7.6

< 4.2< 3.6

< 5.5< 0.00022

< 0.11< 14

P24420SVFA24420 PAN

AMA AVE

2012-12-0710:56

Front20

0.3< 28

1.2 J, b< 8.8

< 14< 5.7

< 7.9< 4.4

< 3.7< 5.8

< 0.00023< 0.12

< 14P24420SVB

24420 PANAM

A AVE2013-08-01

09:57Back

191.9

< 29< 0.81

< 9.1< 14

< 5.9< 8.2

< 4.5< 3.8

< 6< 0.00024

< 0.12< 15

P24420SVBS24420 PAN

AMA AVE

2013-08-0109:57

Back20.3

1.99< 21 U

< 0.74 U< 21 U

< 21 U< 2.1 U

< 2.1 U< 2.1 U

< 2.1 U< 2.1 U

< 0.16 U< 21 U

P24420SVHA24420 PAN

AMA AVE

2013-08-0110:03

House20

0.58< 27

< 0.76< 8.5

< 13< 5.5

< 7.6< 4.2

< 3.6< 5.6

< 0.00022< 0.11

< 14P24420SVFA

24420 PANAM

A AVE2013-08-01

10:26Front

200.22

481.6 J, b

< 9< 14

< 5.8< 8.1

< 4.5< 3.8

< 5.9< 0.00024

< 0.12< 15

P24421SVB24421 PAN

AMA AVE

2010-10-1913:50

Back19

1.1< 11

< 1.411

< 3.6< 5.9

< 8.2< 4.6

< 3.9< 6

< 0.00024< 0.12

< 3.8P24421SVBD

24421 PANAM

A AVE2010-10-19

13:50Back

191.1

16< 1.4

< 9< 3.5

< 5.8< 8.1

< 4.5< 3.8

< 5.9< 0.00024

< 0.12< 3.7

P24421SVF24421 PAN

AMA AVE

2010-10-1914:27

Front18

1.513

< 1.38.4

< 3.3< 5.5

< 7.6< 4.2

< 3.6< 5.5

< 0.00022< 0.11

< 3.5P24421SVHA

24421 PANAM

A AVE2011-03-03

13:34House

200.19

202 J, b

< 9< 14

< 5.8< 8.1

< 4.5< 3.8

< 5.9< 0.00024

0.12< 15

P24421SVB24421 PAN

AMA AVE

2011-03-0315:03

Back21

0.31< 11

1 J, b< 8.4

< 13< 5.5

< 7.6< 4.2

< 3.6< 5.5

< 0.00022< 0.11

< 14P24421SVB

24421 PANAM

A AVE2013-03-14

09:48Back

200.76

< 280.88 J, b

< 8.9< 14

< 5.8< 8

< 4.4< 3.8

< 5.8< 0.00024

< 0.12< 15

P24421SVBS24421 PAN

AMA AVE

2013-03-1409:48

Back21.2

0.798< 20 U

< 0.86 U< 20 U

< 20 U< 2 U

2.3< 2 U

< 2 U< 2 U

< 0.16 U< 20 U

P24421SVHA24421 PAN

AMA AVE

2013-03-1410:02

House21

0.46< 26

0.76 J, b< 8.2

< 13< 5.3

< 7.4< 4.1

< 3.5< 5.4

< 0.000220.13

< 14P24421SVF

24421 PANAM

A AVE2013-03-14

10:29Front

210.36

< 270.77 J, b

< 8.6< 13

< 5.5< 7.7

< 4.3< 3.6

< 5.6< 0.00023

< 0.11< 14

P24421SVFS24421 PAN

AMA AVE

2013-03-1410:29

Front21.7

0.371< 19 U

< 0.81 U< 19 U

< 19 U< 1.9 U

< 1.9 U< 1.9 U

< 1.9 U2.1

< 0.16 U< 19 U

P24421SVB24421 PAN

AMA AVE

2013-08-0211:25

Back20

1.334

< 0.83< 9.3

< 14< 6

< 8.4< 4.6

< 3.9< 6.1

< 0.00025< 0.12

< 15P24421SVHA

24421 PANAM

A AVE2013-08-02

11:51House

200.59

< 28< 0.78

< 8.7< 14

< 5.7< 7.9

< 4.4< 3.7

< 5.7< 0.00023

0.16< 14

P24421SVF24421 PAN

AMA AVE

2013-08-0212:15

Front20

1< 28

< 0.81< 9

< 14< 5.8

< 8.1< 4.5

< 3.8< 5.9

< 0.00024< 0.12

< 15M

24422SVB24422 M

ARBELLA AVE2010-09-15

09:47Back

200.064

22< 1.4

< 9< 3.5

< 5.8< 8.1

< 4.5< 3.8

< 5.9< 0.00045

< 0.23< 3.7

M24422SVF

24422 MARBELLA AVE

2010-09-1510:20

Front19

0.86< 11

< 1.413

< 3.518

< 8.1< 4.5

< 3.8< 5.9

< 0.00053< 0.26

< 3.7M

24422SVFS24422 M

ARBELLA AVE2010-09-15

10:20Front

20.41.05

23< 1.4

< 17< 17

14< 1.7

< 1.7< 1.7

2.3< 0.16

< 17M

24422SVH24422 M

ARBELLA AVE2010-09-15

11:34House

200.29

< 114.6 J, b

< 8.7< 3.4

< 5.6< 7.8

< 4.3< 3.7

< 5.7< 0.00023

< 0.12< 3.6

M24422SVH

24422 MARBELLA AVE

2012-07-1210:05

House21

0.46< 19

< 36.1

< 9.5< 3.9

< 5.54.6

< 2.6< 4

< 0.00016< 0.08

< 10M

24422SVB24422 M

ARBELLA AVE2012-07-12

10:13Back

210.16

< 19< 3.1

< 6.2< 9.7

< 4< 5.6

< 3.1< 2.6

< 4< 0.00016

< 0.082< 10

M24422SVBS

24422 MARBELLA AVE

2012-07-1210:13

Back21.5

0.177< 21 U

< 0.87 U< 21 U

< 21 U< 2.1 U

< 2.1 U< 2.1 U

< 2.1 U< 2.1 U

< 0.17 U< 21 U

M24422SVF

24422 MARBELLA AVE

2012-07-1210:57

Front19

1.9< 19

< 3< 6

< 9.34.5

< 5.4< 3

< 2.5< 3.9

< 0.00016< 0.079

< 9.8M

24422SVFS24422 M

ARBELLA AVE2012-07-12

10:57Front

19.61.94

< 20 U< 0.82 U

< 20 U< 20 U

3.8< 2 U

< 2 U< 2 U

< 2 U< 0.16 U

< 20 UN

24422SVB24422 N

EPTUN

E AVE2009-09-21

11:40Back

16< 0.026

16< 3.3

< 9.9< 3.9

48< 9

< 5< 4.2

< 6.5< 0.00026

< 4.1N

24422SVF24422 N

EPTUN

E AVE2009-09-21

12:50Front

182.5

< 11< 3

< 9.1< 3.6

< 5.9< 8.2

< 4.6< 3.9

< 6< 0.00024

< 3.8N

24422SVH24422 N

EPTUN

E AVE2010-07-09

09:27House

170.94

< 11< 2.3 Q

, uj< 8.8

< 3.4< 5.7

< 7.917

3.7< 5.8

< 0.00023< 0.12

< 3.6N

24422SVF24422 N

EPTUN

E AVE2010-07-09

10:12Front

191.8

18< 2.4 Q

, uj< 9

< 3.5< 5.8

< 8.1< 4.5

< 3.8< 5.9

< 0.00024< 0.12

< 3.7N

24422SVB24422 N

EPTUN

E AVE2010-07-09

10:51Back

180.093

21< 2.4 Q

, uj< 9

< 3.511

< 8.1< 4.5

5.8< 5.9

0.00031< 0.12

< 3.7N

24422SVB24422 N

EPTUN

E AVE2011-01-20

15:21Back

21< 0.025

13< 1.4

13< 3.7

< 6.2< 8.5

< 4.7< 4

< 6.2< 0.00025

< 0.13< 3.9

N24422SVBD

24422 NEPTU

NE AVE

2011-01-2015:21

Back21

< 0.025< 12

< 1.420

< 3.7< 6.2

< 8.5< 4.7

< 4< 6.2

< 0.00025< 0.13

< 3.9N

24422SVH24422 N

EPTUN

E AVE2011-01-20

15:38House

190.64

15< 1.3

15< 3.4

< 5.6< 7.7

< 4.3< 3.6

< 5.6< 0.00023

< 0.11< 3.6

N24422SVF

24422 NEPTU

NE AVE

2011-01-2015:58

Front21

0.29< 11

< 1.310

< 3.5< 5.7

< 8< 4.4

< 3.8< 5.8

< 0.00024< 0.12

< 3.6N

24422SVH24422 N

EPTUN

E AVE2013-08-08

09:54House

172

32< 0.77

< 8.6< 13

< 5.6< 7.7

< 4.3< 3.6

< 5.6< 0.00023

< 0.11< 14

N24422SVB

24422 NEPTU

NE AVE

2013-08-0809:58

Back20

0.98< 30

< 0.86< 9.6

< 1513

< 8.6< 4.8

< 4.1< 6.3

< 0.00026< 0.13

< 16

Page 238: Table Proposed Cleanup Levels Groundwater · 10/21/2013  · Table 04 Summery of PrsllMnery Cost ES11motee for Soleening Feasibility Study Former Kest Property Carson, CA GeotFnlenGOneullanle

Table B-2Sub-Slab Soil Vapor Results

Former Kast Property

Carson, California

Residential Properties Sampled Through August 31, 2013

Page 6 of 235

Oxygen

Oxygen/Argon

Carbon Dioxide

AcetoneN

aphthaleneEthanol

2-Butanone (M

ethyl Ethyl Ketone)

ChloroformTetrachloro-

etheneToluene

BenzeneFreon 12

Methane

HeliumCarbon

DisulfideM

OL %

MO

L %M

OL %

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

MO

L %M

OL %

UG

/M3

100.00%100.00%

92.56%52.63%

49.98%18.72%

17.61%16.54%

8.00%7.84%

7.80%6.94%

6.17%5.34%

4.80%Sam

ple IDAddress

Sample D

ateSam

ple Time

Location

AnalyteU

nitsFrequency of D

etection

N24422SVBS

24422 NEPTU

NE AVE

2013-08-0809:58

Back20.5

1< 22 U

< 0.77 U< 22 U

< 22 U12

< 2.2 U< 2.2 U

< 2.2 U< 2.2 U

< 0.17 U< 22 U

N24422SVF

24422 NEPTU

NE AVE

2013-08-0810:22

Front19

1.8< 29

< 0.82< 9.2

< 14< 6

< 8.3< 4.6

< 3.9< 6

< 0.00024< 0.12

< 15R24422SVH

24422 RAVENN

A AVE2011-01-19

09:32House

181

< 152 J, b

< 12< 4.7

< 7.9< 11

< 6.1< 5.1

< 8< 0.00032

< 0.16< 5

R24422SVBA24422 RAVEN

NA AVE

2011-01-1910:20

Back20

0.07679

2 J, b< 9.1

< 3.6< 5.9

< 8.2< 4.6

< 3.9< 6

0.0025< 0.12

< 3.8R24422SVF

24422 RAVENN

A AVE2011-01-19

10:57Front

21< 0.023

17< 1.3

< 8.8< 3.4

< 5.7< 7.9

< 4.4< 3.7

< 5.8< 0.00023

< 0.12< 3.6

R24422SVFD24422 RAVEN

NA AVE

2011-01-1910:57

Front21

< 0.02323

< 1.3< 8.8

< 3.4< 5.7

< 7.9< 4.4

< 3.7< 5.8

< 0.00023< 0.12

< 3.6R24422SVBA

24422 RAVENN

A AVE2012-12-20

09:57Back

210.54

< 582.2 J, b

< 18< 29

< 12< 16

< 9.1< 7.7

< 12< 0.00048

< 0.24< 30

R24422SVBAD24422 RAVEN

NA AVE

2012-12-2009:57

Back21

0.53< 28

0.63 J, b< 8.8

< 14< 5.7

< 8< 4.4

< 3.8< 5.8

< 0.00024< 0.12

< 15R24422SVH

24422 RAVENN

A AVE2012-12-20

10:11House

191.7

590.64 J, b

10< 14

< 5.8< 8.1

< 4.5< 3.8

< 5.9< 0.00024

< 0.12< 15

R24422SVF24422 RAVEN

NA AVE

2012-12-2010:35

Front21

0.038< 27

< 0.56< 8.6

< 13< 5.6

< 7.7< 4.3

< 3.6< 5.6

< 0.00023< 0.11

< 14R24422SVBA

24422 RAVENN

A AVE2013-06-21

09:45Back

201.3

301 J, b

< 9.4< 15

< 6.1< 8.5

< 4.7< 4

< 6.2< 0.00025

< 0.12< 16

R24422SVBAD24422 RAVEN

NA AVE

2013-06-2109:45

Back20

1.3< 30

0.94 J, b< 9.6

< 15< 6.2

< 8.6< 4.8

< 4.1< 6.3

< 0.00026< 0.13

< 16R24422SVH

24422 RAVENN

A AVE2013-06-21

09:45House

181.9

< 270.78 J, b

< 8.5< 13

< 5.5< 7.7

< 4.2< 3.6

< 5.6< 0.00023

< 0.11< 14

R24422SVF24422 RAVEN

NA AVE

2013-06-2110:11

Front21

0.05834

< 0.8< 8.9

< 14< 5.8

< 878

< 3.8< 5.9

< 0.00024< 0.12

< 15M

24423SVH24423 M

ARBELLA AVE2010-06-02

13:55House

210.03

26< 4

< 8.64.9

< 5.6150

< 4.3< 3.6

< 5.7< 0.00023

< 0.11< 3.6

M24423SVB

24423 MARBELLA AVE

2010-06-0214:36

Back20

0.03419

< 4.2< 9.1

< 3.6< 5.9

< 8.2< 4.6

< 3.9< 6

< 0.00024< 0.12

< 3.8M

24423SVG24423 M

ARBELLA AVE2010-06-02

15:41G

arage20

< 0.02434

< 4.2< 9.1

3.9< 5.9

< 8.2< 4.6

5.6< 6

< 0.00024< 0.12

< 3.8M

24423SVG24423 M

ARBELLA AVE2012-06-21

10:00G

arage22

0.047< 19

1.2 J, b< 6.1 PF

< 9.5< 3.9

< 5.5< 3

< 2.6< 4

0.00018< 0.08

< 10M

24423SVGS

24423 MARBELLA AVE

2012-06-2110:00

Garage

21.6< 0.17 U

< 18 U< 0.76 U

< 18 U< 18 U

< 1.8 U3.3

< 1.8 U< 1.8 U

2.1< 0.17 U

< 18 UM

24423SVH24423 M

ARBELLA AVE2012-06-21

10:06House

220.12

< 180.88 J, b

< 5.8 PF< 9.1

< 3.8260 PE

< 2.9< 2.5

< 3.8< 0.00016

< 0.078< 9.6

M24423SVB

24423 MARBELLA AVE

2012-06-2110:52

Back22

0.033< 19

0.54 J, b< 6.1 PF

< 9.5< 3.9

< 5.5< 3

< 2.6< 4

< 0.00022< 0.11

< 10M

24423SVBS24423 M

ARBELLA AVE2012-06-21

10:52Back

21.5< 0.16 U

< 17 U< 0.72 U

29 j< 17 U

< 1.7 U< 1.7 U

< 1.7 U< 1.7 U

2.1< 0.16 U

27N

24423SVH24423 N

EPTUN

E AVE2010-09-23

14:34House

1.714

93< 15

< 2113

930< 19

18016

< 1417

< 0.1181

N24423SVF

24423 NEPTU

NE AVE

2010-09-2315:18

Front20

< 0.02399

< 6.29.5

7.8< 5.7

< 7.9< 4.4

< 3.7< 5.8

< 0.00023< 0.12

< 3.6N

24423SVB24423 N

EPTUN

E AVE2010-09-23

16:01Back

180.025

20< 6

< 8.6< 3.4

< 5.6< 7.8

< 4.3< 3.6

< 5.70.037

< 0.11< 3.6

N24423SVH

24423 NEPTU

NE AVE

2011-01-1211:21

House4.9

1212

< 1.820

< 3.6< 5.9

< 8.2< 4.6

< 3.9< 6

0.083< 0.12

< 3.8N

24423SVHD24423 N

EPTUN

E AVE2011-01-12

11:21House

4.912

18< 1.8

22< 3.6

< 5.9< 8.2

< 4.6< 3.9

< 60.086

< 0.12< 3.8

N24423SVF

24423 NEPTU

NE AVE

2011-10-2612:54

Front21

0.25< 8

1 J, b< 6.4

< 10< 4.1

< 5.7< 3.2

< 2.7< 4.2

< 0.00017< 0.084

< 10N

24423SVH24423 N

EPTUN

E AVE2011-10-26

13:44House

7.611

272.8 J, b

12< 9.3

9.2< 5.4

234.5

< 3.9< 0.00016

< 0.079< 9.8

N24423SVHD

24423 NEPTU

NE AVE

2011-10-2613:44

House7.7

1016

0.97 J, b< 6

< 9.48.1

< 5.4< 3

< 2.6< 4

< 0.00016< 0.08

< 10N

24423SVB24423 N

EPTUN

E AVE2011-10-26

14:24Back

200.1

9.90.6 J, b

< 6.1< 9.5

< 3.9< 5.5

< 3< 2.6

< 4< 0.00016

< 0.08< 10

N24423SVH

24423 NEPTU

NE AVE

2012-10-1215:02

House19

1.733

< 0.5920

< 146.5

< 8.16.5

< 3.8< 5.9

< 0.000240.14

< 15N

24423SVB24423 N

EPTUN

E AVE2012-10-12

15:21Back

180.06

< 29< 0.6

< 9.1< 14

< 5.9< 8.2

< 4.6< 3.9

< 60.00082 j

< 0.12< 15

N24423SVBD

24423 NEPTU

NE AVE

2012-10-1215:21

Back18

0.058< 29

< 0.6< 9.1

< 14< 5.9

< 8.2< 4.6

< 3.9< 6

< 0.00024< 0.12

< 15N

24423SVF24423 N

EPTUN

E AVE2012-10-12

15:43Front

210.38

< 28< 0.59

< 9< 14

< 5.8< 8.1

< 4.5< 3.8

< 5.9< 0.00024

0.27< 15

N24423SVB

24423 NEPTU

NE AVE

2013-05-0814:55

Back20

0.035< 28

2.2 J, b< 8.8

< 14< 5.7

< 8< 4.4

< 3.8< 5.8

< 0.00024< 0.12

< 15N

24423SVH24423 N

EPTUN

E AVE2013-05-08

15:20House

211.2

< 322 J, b

< 10< 16

8.6< 9.1

< 5.1< 4.3

< 6.6< 0.00027

0.15< 17

N24423SVF

24423 NEPTU

NE AVE

2013-05-0815:28

Front21

0.34< 28

2.1 J, b< 8.9

< 14< 5.8

< 84.6

< 3.8< 5.8

< 0.00024< 0.12

< 15R24423SVB

24423 RAVENN

A AVE2009-09-24

09:10Back

20< 0.023

523 J

< 8.65.9

100< 7.8

< 4.33.9

< 5.7< 0.00023

< 3.6R24423SVF

24423 RAVENN

A AVE2009-09-24

10:25Front

200.53

52< 3.2

< 9.55.4

< 6.2< 8.6

< 4.8< 4

< 6.2< 0.00025

< 3.9R24423SVFD

24423 RAVENN

A AVE2009-09-24

10:25Front

200.52

50< 3.2

< 9.54

< 6.2< 8.6

< 4.8< 4

< 6.2< 0.00025

< 3.9R24423SVB

24423 RAVENN

A AVE2012-10-26

14:39Back

190.72

< 305.8 J, b

< 9.7< 15

9.4< 8.7

< 4.8< 4.1

< 6.4< 0.00026

< 0.13< 16

R24423SVH24423 RAVEN

NA AVE

2012-10-2614:55

House18

1.3< 28

2.6 J, b< 8.8

< 14< 5.7

< 7.9< 4.4

< 3.7< 5.8

< 0.00023< 0.12

< 14R24423SVF

24423 RAVENN

A AVE2012-10-26

15:08Front

200.39

< 271.5 J, b

< 8.7< 14

< 5.6< 7.8

< 4.3< 3.7

< 5.7< 0.00023

< 0.12< 14

R24423SVB24423 RAVEN

NA AVE

2013-07-1809:44

Back21

0.7< 26

< 0.75< 8.4

< 139.7

< 7.5< 4.2

< 3.5< 5.5

< 0.00022< 0.11

< 14R24423SVBD

24423 RAVENN

A AVE2013-07-18

09:44Back

210.7

< 26< 0.75

< 8.4< 13

10< 7.6

< 4.2< 3.6

< 5.5< 0.00022

< 0.11< 14

R24423SVH24423 RAVEN

NA AVE

2013-07-1809:49

House20

1.2130

< 0.78< 8.7

< 14< 5.6

< 7.8< 4.4

< 3.7< 5.7

< 0.00023< 0.12

< 14R24423SVF

24423 RAVENN

A AVE2013-07-18

10:04Front

210.6

< 29< 0.84

< 9.3< 15

< 6< 8.4

< 4.7< 4

< 6.1< 0.00025

< 0.12< 15

M24426SVB

24426 MARBELLA AVE

2009-09-1812:32

Back20

0.04145

7.4 J< 11

6< 7

< 9.8< 5.4

< 4.6< 7.1

< 0.000295.7

M24426SVF

24426 MARBELLA AVE

2009-09-2110:04

Front21

< 0.024< 11

4.6 J< 9

< 3.5< 5.8

< 8.1< 4.5

< 3.8< 5.9

< 0.00024< 3.7

M24426SVH

24426 MARBELLA AVE

2011-10-0613:43

House19

1.418

0.63 J, b< 9.1

< 14< 5.9

< 8.2< 4.6

< 3.9< 6

< 0.00024< 0.12

< 15M

24426SVHD24426 M

ARBELLA AVE2011-10-06

13:43House

191.4

13< 0.48

< 9.1< 14

< 5.9< 8.2

< 4.6< 3.9

< 6< 0.00024

< 0.12< 15

Page 239: Table Proposed Cleanup Levels Groundwater · 10/21/2013  · Table 04 Summery of PrsllMnery Cost ES11motee for Soleening Feasibility Study Former Kest Property Carson, CA GeotFnlenGOneullanle

Table B-2Sub-Slab Soil Vapor Results

Former Kast Property

Carson, California

Residential Properties Sampled Through August 31, 2013

Page 7 of 235

Oxygen

Oxygen/Argon

Carbon Dioxide

AcetoneN

aphthaleneEthanol

2-Butanone (M

ethyl Ethyl Ketone)

ChloroformTetrachloro-

etheneToluene

BenzeneFreon 12

Methane

HeliumCarbon

DisulfideM

OL %

MO

L %M

OL %

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

MO

L %M

OL %

UG

/M3

100.00%100.00%

92.56%52.63%

49.98%18.72%

17.61%16.54%

8.00%7.84%

7.80%6.94%

6.17%5.34%

4.80%Sam

ple IDAddress

Sample D

ateSam

ple Time

Location

AnalyteU

nitsFrequency of D

etection

M24426SVF

24426 MARBELLA AVE

2011-10-0614:23

Front21

0.15< 12

< 0.49< 9.3

< 14< 6

< 8.4< 4.6

< 3.9< 6.1

< 0.00025< 0.12

< 15M

24426SVB24426 M

ARBELLA AVE2011-10-06

14:53Back

210.27

< 11< 0.46

< 8.8< 14

< 5.7< 7.9

< 4.4< 3.7

< 5.8< 0.00023

< 0.12< 14

M24426SVH

24426 MARBELLA AVE

2012-02-2314:59

House18

214

1.8 J, b< 6.3

< 9.9< 4.1

< 5.7< 3.2

< 2.7< 4.2

< 0.00017< 0.084

< 10M

24426SVF24426 M

ARBELLA AVE2012-02-23

15:36Front

210.11

1414 J, b

< 6< 9.3

< 3.8< 5.4

< 3< 2.5

< 3.9< 0.00016

< 0.079< 9.8

M24426SVFD

24426 MARBELLA AVE

2012-02-2315:36

Front21

0.1111

0.47 J, b< 6

< 9.3< 3.8

< 5.4< 3

< 2.5< 3.9

< 0.00016< 0.079

< 9.8M

24426SVB24426 M

ARBELLA AVE2012-02-23

16:17Back

210.45

190.55 J, b

< 5.7< 9

< 3.719

< 2.9< 2.4

< 3.8< 0.00015

< 0.076< 9.5

N24426SVB

24426 NEPTU

NE AVE

2009-09-1709:22

Back21

0.02547

5.2 J< 8.7

6.6< 5.6

< 7.8< 4.3

< 3.7< 5.7

< 0.00023< 3.6

N24426SVF

24426 NEPTU

NE AVE

2009-09-1710:19

Front18

3.6< 11

< 2.8< 8.4

< 3.3< 5.5

< 7.6< 4.2

< 3.6< 5.5

< 0.00022< 3.5

N24426SVB

24426 NEPTU

NE AVE

2010-06-2515:03

Back21

0.2334

< 2.39.6

3.6< 5.6

< 7.8< 4.3

< 3.7< 5.7

< 0.00023< 0.12

5.5N

24426SVH24426 N

EPTUN

E AVE2010-06-25

16:13House

200.51

210< 2.4

8.8 J3.5

< 5.8< 8

< 4.5< 3.8

< 5.9< 0.00024

< 0.12< 3.7

N24426SVF

24426 NEPTU

NE AVE

2010-07-0710:03

Front16

4.753

< 2.3 Q, uj

< 8.84.4

< 5.7< 7.9

< 4.417

< 5.80.00033

< 0.12< 3.6

N24426SVF

24426 NEPTU

NE AVE

2010-09-1509:27

Front16

4.244

< 1.4< 9.1

3.8< 5.9

< 8.2< 4.6

< 3.9< 6

< 0.000240.36

< 3.8N

24426SVH24426 N

EPTUN

E AVE2010-10-29

14:46House

200.67

< 11< 1.3

< 8.5< 3.3

< 5.5< 7.7

< 4.2< 3.6

< 5.6< 0.00023

< 0.116.3

N24426SVB

24426 NEPTU

NE AVE

2010-10-2915:02

Back21

0.1116

< 1.3< 8.7

< 3.4< 5.6

< 7.8< 4.4

< 3.7< 5.7

< 0.00023< 0.12

13N

24426SVBD24426 N

EPTUN

E AVE2010-10-29

15:02Back

210.1

14< 1.3

< 8.7< 3.4

< 5.6< 7.8

< 4.4< 3.7

< 5.7< 0.00023

< 0.12< 3.6

N24426SVF

24426 NEPTU

NE AVE

2010-10-2915:31

Front18

2.315

< 1.3< 8.7

< 3.4< 5.6

< 7.8< 4.4

< 3.7< 5.7

< 0.000230.19

< 3.6N

24426SVH24426 N

EPTUN

E AVE2013-04-19

14:46House

220.38

< 280.65 J, b

< 9< 14

< 5.8< 8.1

< 4.5< 3.8

< 5.9< 0.00024

< 0.12< 15

N24426SVG

24426 NEPTU

NE AVE

2013-04-1915:14

Garage

200.51

34< 0.6 PF

< 9.2< 14

< 6< 8.3

< 4.6< 3.9

< 6< 0.00024

< 0.12< 15

P24426SVH24426 PAN

AMA AVE

2010-08-0509:15

House19

0.5431

< 6.4< 9.1

5.8< 5.9

< 8.2< 4.6

< 3.9< 6

< 0.00024< 0.12

< 3.8P24426SVG

24426 PANAM

A AVE2010-08-05

10:08G

arage19

0.07337

< 611

4.2< 5.6

< 7.8< 4.3

< 3.6< 5.7

< 0.00023< 0.11

< 3.6P24426SVB

24426 PANAM

A AVE2010-08-05

10:47Back

200.034

43< 6.2

109.7

< 5.7< 7.9

< 4.4< 3.7

< 5.8< 0.00023

< 0.12< 3.6

P24426SVH24426 PAN

AMA AVE

2012-12-0609:54

House19

1.3< 29

0.67 J, b12

< 14< 5.9

< 8.224

< 3.9< 6

< 0.00024< 0.12

< 15P24426SVG

24426 PANAM

A AVE2012-12-06

10:23G

arage20

1.6< 29

0.73 J, b< 9.1

< 14< 5.9

< 8.2< 4.6

< 3.9< 6

< 0.00024< 0.12

< 15P24426SVG

D24426 PAN

AMA AVE

2012-12-0610:23

Garage

201.6

420.65 J, b

9.3< 14

< 5.9< 8.2

< 4.6< 3.9

< 6< 0.00024

< 0.12< 15

P24426SVB24426 PAN

AMA AVE

2012-12-1013:45

Back21

0.31< 27

2.1 J, b< 8.6

< 14< 5.6

< 7.8< 4.3

< 3.6< 5.7

< 0.00023< 0.11

< 14P24426SVH

24426 PANAM

A AVE2013-06-14

19:29House

201.2

32< 2.7

< 9.2 PF< 14

< 6< 8.3

< 4.6< 3.9

< 6< 0.00024

< 0.12< 15

P24426SVB24426 PAN

AMA AVE

2013-06-1419:31

Back19

1.1< 27

< 2.5< 8.6 PF

< 13< 5.6

< 7.7< 4.3

< 3.6< 5.6

< 0.00023< 0.11

< 14P24426SVG

24426 PANAM

A AVE2013-06-14

20:05G

arage20

1.5< 27

< 2.5< 8.6 PF

< 13< 5.5

< 7.7< 4.3

< 3.6< 5.6

< 0.00023< 0.11

< 14R24426SVH

24426 RAVENN

A AVE2010-06-22

09:13House

200.29

23< 2.3

< 8.8< 3.4

< 5.7< 7.9

< 4.4< 3.7

< 5.80.00052

< 0.12< 3.6

R24426SVF24426 RAVEN

NA AVE

2010-06-2209:55

Front20

0.06142

< 2.5< 9.3

7.2< 6

< 8.4< 4.7

< 4< 6.1

< 0.00025< 0.12

< 3.9R24426SVB

24426 RAVENN

A AVE2010-06-22

10:45Back

191.7

1926

< 8.8< 3.4

< 5.7< 7.9

13< 3.7

< 5.8< 0.00023

< 0.12< 3.6

R24426SVB24426 RAVEN

NA AVE

2013-02-2814:51

Back21

0.33< 27

1.2 J, b< 8.6

< 14< 5.6

< 7.8< 4.3

< 3.6< 5.7

< 0.00023< 0.11

< 14R24426SVBD

24426 RAVENN

A AVE2013-02-28

14:51Back

220.36

< 283.9 J, b

< 8.8< 14

< 5.7< 7.9

< 4.4< 3.7

< 5.8< 0.00023

< 0.12< 14

R24426SVH24426 RAVEN

NA AVE

2013-02-2814:57

House21

0.3< 28

0.83 J, b< 8.8

< 14< 5.7

< 7.9< 4.4

< 3.7< 5.8

< 0.00023< 0.12

< 14R24426SVF

24426 RAVENN

A AVE2013-02-28

15:36Front

210.14

< 300.78 J, b

< 9.5< 15

< 6.2< 8.5

< 4.7< 4

< 6.2< 0.00025

< 0.13< 16

R24426SVH24426 RAVEN

NA AVE

2013-07-1714:50

House20

0.7228

< 0.768.9

< 13< 5.5

< 7.75.1

< 3.6< 5.6

< 0.00023< 0.11

< 14R24426SVB

24426 RAVENN

A AVE2013-07-17

14:55Back

210.84

< 291.6 J, b

< 9.3< 14

< 6< 8.3

< 4.6< 3.9

< 6.1< 0.00025

< 0.12< 15

R24426SVBD24426 RAVEN

NA AVE

2013-07-1714:55

Back21

0.84< 30

1.1 J, b< 9.6

< 15< 6.2

< 8.6< 4.8

< 4< 6.3

< 0.00025< 0.13

< 16R24426SVF

24426 RAVENN

A AVE2013-07-17

15:22Front

200.56

521.6 J, b

< 8.9< 14

< 5.8< 8

< 4.4< 3.8

< 5.8< 0.00024

< 0.12< 15

M24427SVH

24427 MARBELLA AVE

2010-05-2610:10

House21

< 0.02344

< 2.3< 8.8

< 3.4< 5.7

< 7.9< 4.4

< 3.7< 5.8

< 0.00023< 0.12

< 3.6M

24427SVB24427 M

ARBELLA AVE2010-05-26

11:01Back

21< 0.024

< 11< 2.4

< 9.1< 3.6

< 5.9< 8.2

< 4.6< 3.9

< 6< 0.00024

< 0.12< 3.8

M24427SVG

24427 MARBELLA AVE

2010-05-2611:42

Garage

21< 0.023

< 11< 2.3

< 8.8< 3.4

< 5.7< 7.9

< 4.4< 3.7

< 5.8< 0.00023

< 0.12< 3.6

M24427SVG

24427 MARBELLA AVE

2012-04-0610:19

Garage

200.048

18 J1.3 J, b

< 5.8< 9.1

< 3.8< 5.2

< 2.9< 2.5

< 3.8< 0.00024

< 0.12< 9.6

M24427SVH

24427 MARBELLA AVE

2012-04-0610:21

House20

0.046< 18

1 J, b< 5.6

< 8.8< 3.6

5.1< 2.8

< 2.4< 3.7

< 0.00024< 0.12

< 9.3M

24427SVB24427 M

ARBELLA AVE2012-04-06

10:57Back

200.036

63 j1.4 J, b

< 5.713

< 3.7< 5.2

< 2.9< 2.4

< 3.8< 0.00024

< 0.12< 9.5

M24427SVBD

24427 MARBELLA AVE

2012-04-0610:57

Back21

0.038< 18

1.6 J, b19 j

< 9< 3.7

< 5.2< 2.9

< 2.4< 3.8

< 0.00024< 0.12

< 9.5P24427SVB

24427 PANAM

A AVE2010-06-04

09:06Back

200.069

50< 2.3

< 8.66.6

13< 7.8

< 4.36.7

< 5.7< 0.00023

< 0.11< 3.6

P24427SVF24427 PAN

AMA AVE

2010-06-0409:40

Front20

< 0.02228

< 2.2< 8.4

< 3.3< 5.5

< 7.6< 4.2

< 3.6< 5.5

< 0.00022< 0.11

< 3.5P24427SVH

24427 PANAM

A AVE2010-06-04

10:12House

200.26

30< 2.3

< 8.85.9

< 5.7< 7.9

< 4.4< 3.7

< 5.8< 0.00023

< 0.12< 3.6

P24427SVH24427 PAN

AMA AVE

2013-05-2415:00

House21

1.1< 28

< 2.6< 9 PF

< 14< 5.8

< 8.1< 4.5

< 3.8< 5.9

< 0.000240.26

< 15P24427SVB

24427 PANAM

A AVE2013-05-24

15:07Back

200.94

< 29< 2.7

< 9.2 PF< 14

28< 8.3

< 4.6< 3.9

< 6< 0.00024

< 0.12< 15

P24427SVF24427 PAN

AMA AVE

2013-05-2415:21

Front21

0.49< 28

< 2.5< 8.7 PF

< 14< 5.7

< 7.9< 4.4

< 3.7< 5.7

< 0.00023< 0.12

< 14

Page 240: Table Proposed Cleanup Levels Groundwater · 10/21/2013  · Table 04 Summery of PrsllMnery Cost ES11motee for Soleening Feasibility Study Former Kest Property Carson, CA GeotFnlenGOneullanle

Table B-2Sub-Slab Soil Vapor Results

Former Kast Property

Carson, California

Residential Properties Sampled Through August 31, 2013

Page 8 of 235

Oxygen

Oxygen/Argon

Carbon Dioxide

AcetoneN

aphthaleneEthanol

2-Butanone (M

ethyl Ethyl Ketone)

ChloroformTetrachloro-

etheneToluene

BenzeneFreon 12

Methane

HeliumCarbon

DisulfideM

OL %

MO

L %M

OL %

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

MO

L %M

OL %

UG

/M3

100.00%100.00%

92.56%52.63%

49.98%18.72%

17.61%16.54%

8.00%7.84%

7.80%6.94%

6.17%5.34%

4.80%Sam

ple IDAddress

Sample D

ateSam

ple Time

Location

AnalyteU

nitsFrequency of D

etection

N24429SVB

24429 NEPTU

NE AVE

2010-04-3000:00

Back21

0.1116

< 6.340

5.5< 5.8

< 8< 4.5

< 3.8< 5.9

< 0.00024< 0.12

< 3.7N

24429SVH24429 N

EPTUN

E AVE2010-04-30

13:27House

210.046

< 11< 6.2

< 8.8< 3.5

< 5.7< 8

< 4.4< 3.8

< 5.8< 0.00024

< 0.12< 3.6

N24429SVF

24429 NEPTU

NE AVE

2010-04-3014:40

Front21

0.0916

< 6.331

4.2< 5.8

< 8.1< 4.5

< 3.8< 5.9

< 0.00024< 0.12

< 3.7N

24429SVB24429 N

EPTUN

E AVE2011-01-14

15:08Back

210.28

100< 1.1

186.2

< 4.8< 6.7

33< 3.2

< 4.9< 0.0002

< 0.1< 3.1

N24429SVF

24429 NEPTU

NE AVE

2011-01-1415:34

Front21

0.18< 11

< 1.3< 8.6

< 3.4< 5.6

< 7.8< 4.3

< 3.6< 5.7

< 0.00023< 0.11

< 3.6N

24429SVH24429 N

EPTUN

E AVE2011-01-14

16:00House

200.2

1101.4 J, b

< 8.840

< 5.7360

< 4.4< 3.7

< 5.8< 0.00023

< 0.12< 3.6

N24429SVH

24429 NEPTU

NE AVE

2013-08-0709:47

House20

0.71250

< 0.79< 8.8

< 14< 5.7

< 8< 4.4

< 3.8< 5.8

< 0.00024< 0.12

< 15N

24429SVF24429 N

EPTUN

E AVE2013-08-07

10:09Front

191.6

< 29< 0.82

< 9.2< 14

< 6< 8.3

< 4.6< 3.9

< 6< 0.00024

< 0.12< 15

N24429SVFS

24429 NEPTU

NE AVE

2013-08-0710:09

Front20.1

1.67< 20 U

< 0.73 U< 20 U

< 20 U< 2 U

< 2 U< 2 U

< 2 U< 2 U

< 0.16 U< 20 U

N24429SVB

24429 NEPTU

NE AVE

2013-08-0710:26

Back21

0.55< 26

< 0.75< 8.4

< 13< 5.4

< 7.6< 4.2

< 3.6< 5.5

< 0.00022< 0.11

< 14R24429SVG

24429 RAVENN

A AVE2010-09-17

13:46G

arage20

0.1813

1.6 J, b< 8.6

3.824

< 7.7< 4.3

< 3.6< 5.6

< 0.00023< 0.11

< 3.6R24429SVH

24429 RAVENN

A AVE2010-10-14

10:17House

180.78

19< 1.5

< 107.8

< 6.5< 9

< 5< 4.2

9< 0.00027

< 0.13< 4.1

R24429SVB24429 RAVEN

NA AVE

2010-10-1411:26

Back19

0.3415

< 1.4< 9.1

< 3.6< 5.9

< 8.2< 4.6

< 3.9< 6

< 0.00024< 0.12

7R24429SVB

24429 RAVENN

A AVE2013-07-30

10:04Back

210.75

< 29< 0.82

< 9.1< 14

< 5.9< 8.2

< 4.6< 3.9

< 6< 0.00024

< 0.12< 15

R24429SVBD24429 RAVEN

NA AVE

2013-07-3010:04

Back21

0.75< 29

< 0.83< 9.3

< 14< 6

< 8.4< 4.6

< 3.9< 6.1

< 0.00025< 0.12

< 15R24429SVH

24429 RAVENN

A AVE2013-07-30

10:09House

200.84

< 281.1 J, b

< 8.8< 14

< 5.7< 7.9

< 4.4< 3.7

< 5.80.00039

0.12< 14

R24429SVG24429 RAVEN

NA AVE

2013-07-3010:36

Garage

200.98

< 280.88 J, b

< 8.8< 14

< 5.7< 7.9

< 4.4< 3.7

< 5.8< 0.00023

< 0.12< 14

P24430SVB24430 PAN

AMA AVE

2009-10-0109:28

Back20

0.4139

< 3.7< 11

6.1< 7.1

< 9.9< 5.5

< 4.6< 7.2

< 0.00029< 4.5

P24430SVBD24430 PAN

AMA AVE

2009-10-0109:28

Back20

0.4138

8.6 J< 11

6.2< 7

< 9.731

< 4.6< 7.1

< 0.0002917

P24430SVF24430 PAN

AMA AVE

2009-10-0110:54

Front20

0.8745

6.7 J< 8.6

59< 5.6

21< 4.3

< 3.6< 5.6

< 0.00023< 3.6

P24430SVH24430 PAN

AMA AVE

2010-06-1409:42

House20

0.2937 b

3 J37

4.4 b< 5.9

< 8.2< 4.6

< 3.9< 6

< 0.000240.25

< 3.8P24430SVB

24430 PANAM

A AVE2010-06-14

10:48Back

200.34

37 b< 2.3

8.7 J11 b

< 5.7< 8

< 4.4< 3.8

< 5.8< 0.00024

< 0.12< 3.6

P24430SVF24430 PAN

AMA AVE

2010-06-1411:46

Front20

0.6356 b

< 2.317

9.5 b< 5.7

14< 4.4

5.8< 5.8

< 0.00023< 0.12

< 3.6P24430SVF

24430 PANAM

A AVE2012-11-30

15:16Front

200.72

322.3 J, b

< 8.4< 13

< 5.512

< 4.2< 3.6

< 5.5< 0.00022

0.21< 14

P24430SVHA24430 PAN

AMA AVE

2013-05-0715:25

House20

1.4< 30

11 J, b< 9.4

< 15< 6.1

< 8.5< 4.7

< 4< 6.2

< 0.00025< 0.12

< 16P24430SVB

24430 PANAM

A AVE2013-05-07

15:31Back

210.16

< 295.6 J, b

< 9.3< 15

< 6< 8.4

< 4.7< 4

< 6.1< 0.00025

< 0.12< 15

P24430SVF24430 PAN

AMA AVE

2013-05-0715:56

Front20

0.8< 29

3.6 J, b< 9.1

< 14< 5.9

18< 4.5

< 3.8< 6

< 0.00024< 0.12

< 15P24431SVF

24431 PANAM

A AVE2010-09-20

09:59Front

20< 0.026

153.8 J

< 9.7< 3.8

< 6.3< 8.8

< 4.9< 4.1

< 6.4< 0.00026

< 0.13< 4

P24431SVFD24431 PAN

AMA AVE

2010-09-2009:59

Front20

< 0.02620

2.5 J< 9.7

4.6< 6.3

< 8.8< 4.9

< 4.1< 6.4

< 0.00026< 0.13

< 4P24431SVB

24431 PANAM

A AVE2010-09-20

11:22Back

181.5

202.2 J

< 8.86.2

< 5.7< 7.9

< 4.4< 3.7

< 5.8< 0.00023

< 0.12< 3.6

P24431SVH224431 PAN

AMA AVE

2010-10-1314:31

House16

420

4.3 J9.7

< 3.5< 5.7

< 821

< 3.8< 5.8

< 0.000240.17

< 3.6P24431SVB

24431 PANAM

A AVE2013-01-17

10:12Back

201.1

< 270.87 J, b

< 8.6< 13

< 5.6< 7.7

< 4.3< 3.6

< 5.6< 0.00023

< 0.11< 14

P24431SVH224431 PAN

AMA AVE

2013-01-1710:12

House19

1.7< 26

0.76 J, b< 8.3

< 13< 5.4

< 7.5< 4.2

< 3.5< 5.5

< 0.00022< 0.11

< 14P24431SVF

24431 PANAM

A AVE2013-01-17

10:43Front

210.11

< 290.71 J, b

< 9.3< 14

< 6< 8.3

< 4.6< 3.9

< 6.1< 0.00025

< 0.12< 15

P24431SVB24431 PAN

AMA AVE

2013-05-2909:47

Back20

1.329

< 2.5< 8.6

< 13< 5.5

< 7.7< 4.3

< 3.6< 5.6

< 0.00023< 0.11

< 14P24431SVBD

24431 PANAM

A AVE2013-05-29

09:47Back

201.3

32< 2.4

< 8.2< 13

< 5.3< 7.4

< 4.1< 3.5

< 5.4< 0.00022

< 0.11< 14

P24431SVH224431 PAN

AMA AVE

2013-05-2909:48

House20

1.8120

< 2.6< 8.9

< 14< 5.8

< 8< 4.4

< 3.8< 5.8

< 0.00024< 0.12

< 15P24431SVF

24431 PANAM

A AVE2013-05-29

10:21Front

220.092

30< 2.6

< 8.8< 14

< 5.7< 8

< 4.4< 3.8

< 5.8< 0.00024

< 0.12< 15

M24432SVH

24432 MARBELLA AVE

2010-11-0109:18

House20

1.6120

< 1.4< 8.9

11< 5.8

< 8< 4.5

< 3.8< 5.9

< 0.00024< 0.12

< 3.7M

24432SVF24432 M

ARBELLA AVE2010-11-01

09:53Front

200.75

< 11< 1.4

< 9.1< 3.6

< 5.9< 8.2

< 4.6< 3.9

< 6< 0.00024

< 0.12< 3.8

M24432SVB

24432 MARBELLA AVE

2010-11-0110:38

Back20

0.64230

< 1.39.9

< 3.4< 5.7

< 7.9< 4.4

< 3.7< 5.8

< 0.00023< 0.12

< 3.6M

24432SVH24432 M

ARBELLA AVE2011-01-27

14:09House

201.1

< 110.58 J, b

< 8.8< 3.4

< 5.7< 7.9

< 4.4< 3.7

< 5.8< 0.00023

< 0.12< 3.6

M24432SVB

24432 MARBELLA AVE

2011-01-2714:55

Back21

0.93< 10

< 0.32< 8.4

< 3.3< 5.4

< 7.6< 4.2

< 3.6< 5.5

< 0.00022< 0.11

< 3.5M

24432SVF24432 M

ARBELLA AVE2011-01-27

15:34Front

210.85

160.39 J, b

< 8.44.8

< 5.5< 7.6

418.3

< 5.5< 0.00022

< 0.11< 3.5

M24432SVH

24432 MARBELLA AVE

2012-03-1610:24

House20

1.121

5.7 J, b< 6

< 9.314

< 5.4< 3

< 2.5< 3.9

< 0.00016< 0.079

< 9.8M

24432SVF24432 M

ARBELLA AVE2012-03-16

11:04Front

210.82

200.68 J, b

< 5.4< 8.5

< 3.5< 4.9

< 2.7< 2.3

< 3.6< 0.00014

< 0.072< 9

M24432SVB

24432 MARBELLA AVE

2012-03-1611:28

Back21

0.58< 18

0.71 J, b18

< 9< 3.7

< 5.2< 2.9

< 2.4< 3.8

< 0.00015< 0.076

< 9.5M

24432SVBD24432 M

ARBELLA AVE2012-03-16

11:28Back

210.58

< 185.9 J, b

< 5.7< 9

< 3.7< 5.2

< 2.9< 2.4

< 3.8< 0.00015

< 0.076< 9.5

M24433SVB

24433 MARBELLA AVE

2009-09-1613:05

Back21

0.027< 11

< 2.8< 8.5

< 3.3< 5.5

< 7.7< 4.2

5.8< 5.6

< 0.00023< 3.5

M24433SVF

24433 MARBELLA AVE

2009-09-1614:14

Front21

0.1515

3 J< 7.9

< 3.16.7

< 7.1< 3.9

3.4< 5.2

< 0.00021< 3.2

M24433SVB2

24433 MARBELLA AVE

2009-09-1815:39

Back21

< 0.029220

31< 11

19< 7

2009.3

< 4.6< 7.1

< 0.00029< 4.5

M24433SVH

24433 MARBELLA AVE

2011-02-1413:51

House21

< 0.02414

2.8 J, b11

< 3.5< 5.7

24< 4.4

< 3.8< 5.8

< 0.00024< 0.12

< 3.6

Page 241: Table Proposed Cleanup Levels Groundwater · 10/21/2013  · Table 04 Summery of PrsllMnery Cost ES11motee for Soleening Feasibility Study Former Kest Property Carson, CA GeotFnlenGOneullanle

Table B-2Sub-Slab Soil Vapor Results

Former Kast Property

Carson, California

Residential Properties Sampled Through August 31, 2013

Page 9 of 235

Oxygen

Oxygen/Argon

Carbon Dioxide

AcetoneN

aphthaleneEthanol

2-Butanone (M

ethyl Ethyl Ketone)

ChloroformTetrachloro-

etheneToluene

BenzeneFreon 12

Methane

HeliumCarbon

DisulfideM

OL %

MO

L %M

OL %

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

MO

L %M

OL %

UG

/M3

100.00%100.00%

92.56%52.63%

49.98%18.72%

17.61%16.54%

8.00%7.84%

7.80%6.94%

6.17%5.34%

4.80%Sam

ple IDAddress

Sample D

ateSam

ple Time

Location

AnalyteU

nitsFrequency of D

etection

M24433SVB2

24433 MARBELLA AVE

2011-02-1414:11

Back21

0.0964

< 0.35< 9.3

< 3.67.1

150< 4.6

< 3.9< 6.1

< 0.00025< 0.12

< 3.8M

24433SVB24433 M

ARBELLA AVE2011-02-14

14:29Back

210.043

21< 0.35

< 9.1< 3.6

< 5.9< 8.2

< 4.6< 3.9

< 6< 0.00024

< 0.12< 3.8

M24433SVBD

24433 MARBELLA AVE

2011-02-1414:29

Back21

0.045< 11

< 0.35< 9.1

< 3.6< 5.9

< 8.2< 4.6

< 3.9< 6

< 0.00024< 0.12

< 3.8M

24433SVF24433 M

ARBELLA AVE2011-02-14

14:57Front

210.23

< 11< 0.34

< 8.9< 3.5

< 5.8< 8

< 4.5< 3.8

< 5.9< 0.00024

< 0.12< 3.7

M24433SVF

24433 MARBELLA AVE

2012-03-0215:00

Front22

0.18< 20

4.6 J, b< 6.2

< 9.7< 4

< 5.6< 3.1

< 2.6< 4.1

< 0.00015< 0.076

< 10M

24433SVFD24433 M

ARBELLA AVE2012-03-02

15:00Front

220.17

< 203 J, b

< 6.2< 9.8

< 4< 5.6

< 3.1< 2.6

< 4.1< 0.00015

< 0.076< 10

M24433SVH

24433 MARBELLA AVE

2012-03-0215:13

House21

0.06126

6.5 J, b26

< 10< 4.4

7.9< 3.4

< 2.8< 4.4

0.00018< 0.08

< 11M

24433SVB24433 M

ARBELLA AVE2012-03-02

15:46Back

220.049

< 204.5 J, b

< 6.4< 10

< 4.2< 5.8

< 3.2< 2.7

< 4.20.0002

< 0.079< 10

M24433SVB2

24433 MARBELLA AVE

2012-03-0215:48

Back21

0.17< 21

3.4 J, b< 6.7

< 10< 4.3

< 6< 3.3

< 2.8< 4.4

< 0.00016< 0.08

< 11P24436SVH

24436 PANAM

A AVE2010-06-24

09:51House

182.1

47< 2.4

< 8.98.5

< 5.8< 8

< 4.57.1

< 5.9< 0.00024

0.14< 3.7

P24436SVF24436 PAN

AMA AVE

2010-06-2411:55

Front21

< 0.02369

< 2.3< 8.7

5.6< 5.6

< 7.8< 4.3

< 3.7< 5.7

< 0.00023< 0.12

< 3.6P24436SVHA

24436 PANAM

A AVE2012-06-28

09:55House

200.56

80< 3

1236

< 3.99.6

< 3< 2.6

< 4< 0.00016

0.23< 10

P24436SVF24436 PAN

AMA AVE

2012-06-2810:03

Front22

0.11< 19

< 3< 6.1

< 9.5< 3.9

< 5.5< 3

< 2.6< 4

< 0.00022< 0.11

< 10P24436SVFS

24436 PANAM

A AVE2012-06-28

10:03Front

21.5< 0.16 U

< 18 U< 0.74 U

< 18 U< 18 U

< 1.8 U< 1.8 U

< 1.8 U< 1.8 U

2< 0.16 U

< 18 UP24436SVBA

24436 PANAM

A AVE2012-06-28

10:39Back

210.21

37< 3.1

< 6.3< 9.9

< 4.1< 5.7

< 3.2< 2.7

< 4.2< 0.00022

< 0.11< 10

P24436SVBAS24436 PAN

AMA AVE

2012-06-2810:39

Back21.1

0.22222

< 0.82 U< 19 U

< 19 U3.2

< 1.9 U< 1.9 U

< 1.9 U2

< 0.18 U< 19 U

M24502SVH

24502 MARBELLA AVE

2010-09-2009:49

House19

1.120

1.5 J, b16

3.4< 5.1

< 7.1< 3.9

< 3.3< 5.2

< 0.00021< 0.1

< 3.2M

24502SVG24502 M

ARBELLA AVE2010-09-20

10:39G

arage16

1.331

2.8 J, b17

645

< 7.9< 4.4

< 3.7< 5.8

< 0.00023< 0.12

< 3.6M

24502SVB24502 M

ARBELLA AVE2010-09-20

11:20Back

190.78

241.3 J, b

244.3

< 5.8< 8.1

< 4.5< 3.8

< 5.9< 0.00024

< 0.12< 3.7

M24502SVG

24502 MARBELLA AVE

2012-05-0414:34

Garage

174

< 211.7 J, b

< 6.6< 10

11< 5.9

< 3.3< 2.8

< 4.3< 0.00018

< 0.088< 11

M24502SVG

D24502 M

ARBELLA AVE2012-05-04

14:34G

arage17

3.9< 21

1.2 J, b< 6.6

< 1010

< 5.9< 3.3

< 2.8< 4.3

< 0.00018< 0.088

< 11M

24502SVH24502 M

ARBELLA AVE2012-05-04

14:56House

191.4

< 181.6 J, b

< 5.6< 8.8

< 3.6< 5

< 2.8< 2.4

< 3.7< 0.00015

< 0.074< 9.3

M24502SVB

24502 MARBELLA AVE

2012-05-0415:13

Back19

1.3< 18

3.4 J, b< 5.8

< 9.13.8

< 5.2< 2.9

< 2.5< 3.8

< 0.00016< 0.078

< 9.6M

24502SVH24502 M

ARBELLA AVE2013-08-16

09:53House

182.1

< 271.5 J, b

< 8.5< 13

< 5.5< 7.6

< 4.2< 3.6

< 5.6< 0.00022

< 0.11< 14

M24502SVB

24502 MARBELLA AVE

2013-08-1610:17

Back19

1.3< 30

1.1 J, b< 9.4

< 1583

< 8.4< 4.7

< 4< 6.2

< 0.00025< 0.12

< 16M

24502SVBS24502 M

ARBELLA AVE2013-08-16

10:17Back

20.31.3

< 21 U< 0.76 U

< 21 U< 21 U

80< 2.1 U

< 2.1 U< 2.1 U

< 2.1 U< 0.17 U

< 21 UM

24502SVG24502 M

ARBELLA AVE2013-08-16

10:25G

arage16

5.1< 28

1.1 J, b< 8.9

< 148.9

< 8< 4.4

< 3.8< 5.8

< 0.00024< 0.12

< 15N

24502SVB24502 N

EPTUN

E AVE2009-09-23

12:48Back

163.8

< 12< 3.1

< 9.3< 3.6

52< 8.4

< 4.7< 4

< 6.1< 0.00025

< 3.9N

24502SVF24502 N

EPTUN

E AVE2009-09-23

13:59Front

149

148.8 J

< 8.8< 3.5

< 5.7< 8

< 4.4< 3.8

< 5.8< 0.00024

< 3.6N

24502SVH24502 N

EPTUN

E AVE2011-02-17

09:25House

21< 0.023

24< 0.33

< 8.7< 3.4

< 5.6< 7.8

< 4.3< 3.7

< 5.7< 0.00023

< 0.12< 3.6

N24502SVF

24502 NEPTU

NE AVE

2011-02-1710:12

Front15

4.333

< 0.3411

< 3.5< 5.7

< 8< 4.4

< 3.8< 5.8

< 0.00024< 0.12

< 3.6N

24502SVFD24502 N

EPTUN

E AVE2011-02-17

10:12Front

144.2

< 11< 0.34

< 8.8< 3.5

< 5.7< 8

< 4.4< 3.8

< 5.8< 0.00024

< 0.12< 3.6

N24502SVB

24502 NEPTU

NE AVE

2011-02-1710:59

Back18

2.3< 11

< 0.33< 8.7

< 3.48.2

< 7.8< 4.3

< 3.7< 5.7

< 0.00023< 0.12

< 3.6N

24502SVH24502 N

EPTUN

E AVE2013-01-25

14:55House

210.38

< 281.7 J, b

< 8.8< 14

< 5.7< 7.9

< 4.4< 3.7

< 5.8< 0.00023

< 0.12< 14

N24502SVF

24502 NEPTU

NE AVE

2013-01-2515:00

Front12

6.5< 29

1.1 J, b< 9.3

< 14< 6

< 8.4< 4.6

< 3.9< 6.1

< 0.00025< 0.12

< 15N

24502SVFD24502 N

EPTUN

E AVE2013-01-25

15:00Front

126.5

< 291.3 J, b

< 9.3< 14

< 6< 8.4

< 4.6< 3.9

< 6.1< 0.00025

< 0.12< 15

N24502SVB

24502 NEPTU

NE AVE

2013-07-1209:39

Back15

4.9< 29

1.2 J, b< 9.3

< 15510

< 8.4< 4.7

< 4< 6.1

< 0.00025< 0.12

< 15N

24502SVBD24502 N

EPTUN

E AVE2013-07-12

09:39Back

154.8

< 291.2 J, b

< 9.1< 14

520< 8.2

< 4.6< 3.9

< 6< 0.00024

< 0.12< 15

N24502SVH

24502 NEPTU

NE AVE

2013-07-1209:41

House21

0.4753

2.9 J, b< 8.6

< 14< 5.6

< 7.8< 4.3

< 3.6< 5.7

< 0.00023< 0.11

< 14N

24502SVF24502 N

EPTUN

E AVE2013-07-12

10:08Front

159.2

< 290.91 J, b

< 9.3< 14

< 6< 8.3

< 4.6< 3.9

< 6.1< 0.00023

< 0.12< 15

P24502SVB24502 PAN

AMA AVE

2009-09-2509:24

Back20

0.113

12 J< 8.8

< 3.5< 5.7

< 825

4.9< 5.8

< 0.00024< 3.6

P24502SVF24502 PAN

AMA AVE

2009-09-2510:26

Front20

0.1124

7.2 J< 8.7

4.1< 5.6

< 7.8< 4.4

< 3.7< 5.7

< 0.00023< 3.6

P24502SVF24502 PAN

AMA AVE

2010-06-0110:06

Front21

0.3212

< 4< 8.7

< 3.4< 5.6

< 7.8< 4.4

< 3.7< 5.7

< 0.00023< 0.12

< 3.6P24502SVB

24502 PANAM

A AVE2010-06-01

11:14Back

210.12

< 11< 4.2

< 9.1< 3.6

< 5.9< 8.2

< 4.6< 3.9

< 6< 0.00024

< 0.12< 3.8

P24502SVBD24502 PAN

AMA AVE

2010-06-0111:14

Back21

0.12< 11

< 4.2< 9.1

< 3.6< 5.9

< 8.2< 4.6

< 3.9< 6

< 0.00024< 0.12

< 3.8P24502SVH2

24502 PANAM

A AVE2010-09-02

08:52House

210.37

151.4 J

< 8.8< 3.5

< 5.7< 8

< 4.4< 3.8

< 5.8< 0.00034

< 0.17< 3.6

P24502SVH224502 PAN

AMA AVE

2013-01-1810:09

House21

0.44< 27

1.3 J, b< 8.4

< 13< 5.5

< 7.6< 4.2

< 3.6< 5.5

< 0.000220.22

< 14P24502SVF

24502 PANAM

A AVE2013-01-18

10:19Front

210.34

< 280.83 J, b

< 9< 14

< 5.8< 8.1

< 4.5< 3.8

< 5.9< 0.00024

< 0.12< 15

P24502SVFD24502 PAN

AMA AVE

2013-01-1810:19

Front18

0.3< 28

0.84 J, b< 9

< 14< 5.8

< 8.1< 4.5

< 3.8< 5.9

< 0.00024< 0.12

< 15P24502SVB

24502 PANAM

A AVE2013-01-18

10:45Back

200.15

< 280.76 J, b

< 8.8< 14

< 5.7< 7.9

< 4.4< 3.7

< 5.8< 0.00023

< 0.12< 14

R24502SVB24502 RAVEN

NA AVE

2010-04-2210:39

Back21

< 0.02329

< 2.321

12< 5.7

13< 4.4

9.6< 5.8

< 0.00023< 0.12

< 3.6R24502SVF

24502 RAVENN

A AVE2010-04-22

12:16Front

200.1

683.8 J, b

1322

< 5.9< 8.2

< 4.68.7

< 60.0031

< 0.12< 3.8

Page 242: Table Proposed Cleanup Levels Groundwater · 10/21/2013  · Table 04 Summery of PrsllMnery Cost ES11motee for Soleening Feasibility Study Former Kest Property Carson, CA GeotFnlenGOneullanle

Table B-2Sub-Slab Soil Vapor Results

Former Kast Property

Carson, California

Residential Properties Sampled Through August 31, 2013

Page 10 of 235

Oxygen

Oxygen/Argon

Carbon Dioxide

AcetoneN

aphthaleneEthanol

2-Butanone (M

ethyl Ethyl Ketone)

ChloroformTetrachloro-

etheneToluene

BenzeneFreon 12

Methane

HeliumCarbon

DisulfideM

OL %

MO

L %M

OL %

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

MO

L %M

OL %

UG

/M3

100.00%100.00%

92.56%52.63%

49.98%18.72%

17.61%16.54%

8.00%7.84%

7.80%6.94%

6.17%5.34%

4.80%Sam

ple IDAddress

Sample D

ateSam

ple Time

Location

AnalyteU

nitsFrequency of D

etection

R24502SVH24502 RAVEN

NA AVE

2010-04-2213:38

House21

0.15130

2.5 J, b39

13< 5.6

< 7.8< 4.3

< 3.6< 5.7

< 0.00023< 0.11

< 3.6R24502SVH

24502 RAVENN

A AVE2010-10-07

11:07House

200.3

19< 1.3

< 8.4< 3.3

7.7< 7.6

< 4.2< 3.6

< 5.5< 0.00022

< 0.11< 3.5

R24502SVB24502 RAVEN

NA AVE

2010-10-0711:58

Back20

0.05629

< 1.3< 8.8

4.4< 5.7

< 7.9< 4.4

< 3.7< 5.8

< 0.00023< 0.12

< 3.6R24502SVF

24502 RAVENN

A AVE2010-10-07

12:58Front

200.31

12< 1.4

< 9.1< 3.6

< 5.9< 8.2

< 4.6< 3.9

< 6< 0.00024

< 0.12< 3.8

R24502SVH24502 RAVEN

NA AVE

2010-10-1114:40

House19

0.2933

< 1.3< 8.8

< 3.4< 5.7

< 7.9< 4.4

< 3.7< 5.8

< 0.00023< 0.12

5.7R24502SVB

24502 RAVENN

A AVE2010-10-11

15:17Back

200.058

18< 1.3

< 8.8< 3.4

< 5.7< 7.9

< 4.4< 3.7

< 5.8< 0.00023

< 0.12< 3.6

R24502SVF24502 RAVEN

NA AVE

2010-10-1116:14

Front19

0.4412

< 1.4< 9

< 3.5< 5.8

< 8.1< 4.5

< 3.8< 5.9

< 0.00024< 0.12

< 3.7R24502SVH

24502 RAVENN

A AVE2012-07-26

15:07House

210.23

< 19< 3

< 6< 9.3

7.5< 5.4

< 3< 2.5

< 3.9< 0.00016

< 0.079< 9.8

R24502SVB24502 RAVEN

NA AVE

2012-07-2615:20

Back21

0.063< 19

< 3< 6.1

< 9.5< 3.9

< 5.5< 3

< 2.6< 4

< 0.00016< 0.08

< 10R24502SVF

24502 RAVENN

A AVE2012-07-26

15:51Front

210.59

< 19< 3.1

< 6.2< 9.7

4.2< 5.6

< 3.1< 2.6

< 40.00028

< 0.082< 10

M24503SVF

24503 MARBELLA AVE

2010-05-2808:58

Front21

< 0.02422

< 4.1< 8.9

< 3.5< 5.8

< 8< 4.5

< 3.8< 5.9

< 0.00024< 0.12

< 3.7M

24503SVB24503 M

ARBELLA AVE2010-05-28

09:40Back

210.05

< 11< 4

< 8.8< 3.4

< 5.7< 7.9

< 4.4< 3.7

< 5.8< 0.00023

< 0.12< 3.6

M24503SVH

24503 MARBELLA AVE

2010-05-2810:22

House21

0.1662

< 4.5< 9.7

8.7< 6.3

220< 4.8

< 4.1< 6.4

< 0.000260.28

< 4M

24503SVH24503 M

ARBELLA AVE2012-03-30

14:54House

210.43

< 192.3 J, b

< 6< 9.3

< 3.8140

< 3< 2.5

< 3.9< 0.00016

0.11< 9.8

M24503SVF

24503 MARBELLA AVE

2012-03-3015:12

Front21

0.056< 19

3.5 J, b< 5.9

< 9.2< 3.8

< 5.3< 3

< 2.5< 3.9

< 0.00016< 0.078

< 9.8M

24503SVFD24503 M

ARBELLA AVE2012-03-30

15:12Front

210.053

331.4 J, b

6< 9.3

< 3.86.4

< 3< 2.5

< 3.9< 0.00016

< 0.079< 9.8

M24503SVB

24503 MARBELLA AVE

2012-03-3015:40

Back22

0.051< 18

0.72 J, b< 5.9

< 9.2< 3.8

< 5.3< 2.9

< 2.5< 3.8

0.0002< 0.078

< 9.7N

24503SVF24503 N

EPTUN

E AVE2010-06-18

09:48Front

200.32

< 11< 2.4

< 9< 3.5

< 5.8< 8.1

< 4.54.1

< 5.9< 0.00024

< 0.12< 3.7

N24503SVB

24503 NEPTU

NE AVE

2010-06-1810:30

Back14

4.3< 11

< 2.3< 8.8

< 3.4< 5.7

< 7.9< 4.4

< 3.7< 5.8

< 0.00023< 0.12

< 3.6N

24503SVHA24503 N

EPTUN

E AVE2011-02-02

09:46House

21< 0.022

263.2 J, b

8.34.7

< 5.4< 7.5

21< 3.5

< 5.5< 0.00022

< 0.11< 3.4

N24503SVHA

24503 NEPTU

NE AVE

2012-04-1310:30

House22

0.062< 19

1.1 J, b< 6.2

< 9.7< 4

< 5.6< 3.1

< 2.6< 4

< 0.00025< 0.13

< 10N

24503SVF24503 N

EPTUN

E AVE2012-04-13

10:46Front

210.34

221 J, b

7< 9.3

< 3.8< 5.4

16 j< 2.5

< 3.9< 0.00024

< 0.12< 9.8

N24503SVFD

24503 NEPTU

NE AVE

2012-04-1310:46

Front22

0.39< 19

0.99 J, b< 6

< 9.3< 3.8

< 5.4< 3

< 2.5< 3.9

< 0.00024< 0.12

< 9.8N

24503SVHA24503 N

EPTUN

E AVE2013-06-27

14:37House

210.23

< 281.1 J, b

< 8.7< 14

< 5.7< 7.9

< 4.4< 3.7

< 5.7< 0.00023

< 0.12< 14

N24503SVB

24503 NEPTU

NE AVE

2013-06-2714:46

Back17

4.330

< 0.82< 9.2

< 141100

< 8.3< 4.6

< 3.9< 6

< 0.00024< 0.12

< 15N

24503SVF24503 N

EPTUN

E AVE2013-06-27

15:10Front

210.67

39< 0.85

< 9.5< 15

7.5< 8.6

< 4.8< 4

< 6.2< 0.00025

< 0.13< 16

P24503SVB24503 PAN

AMA AVE

2011-04-0414:05

Back20

< 0.02678

0.92 J, b< 9.8

< 1518

< 8.827

< 4.2< 6.4

< 0.00026< 0.13

< 16P24503SVH

24503 PANAM

A AVE2011-04-04

14:55House

172.7

< 120.47 J, b

< 9.5< 15

< 6.223

< 4.7< 4

< 6.2< 0.00025

< 0.13< 16

P24503SVG24503 PAN

AMA AVE

2011-04-0415:31

Garage

220.11

< 120.61 J, b

< 9.8< 15

< 6.4< 8.8

< 4.9< 4.2

< 6.4< 0.00054

< 0.27< 16

P24503SVH24503 PAN

AMA AVE

2012-08-1014:54

House11

7.2< 20

< 3.1< 6.2

< 9.8< 4

< 5.6< 3.1

< 2.6< 4.1

< 0.00017< 0.083

< 10P24503SVB

24503 PANAM

A AVE2012-08-10

15:31Back

163.4

572.2 J, b

170< 13

15< 7.5

4.6< 3.5

< 5.5< 0.00017

< 0.083< 14

P24503SVBD24503 PAN

AMA AVE

2012-08-1015:31

Back16

3.3< 40

4.5 J, b290

< 2014

< 12< 6.4

< 5.4< 8.4

< 0.00017< 0.083

< 21P24503SVG

24503 PANAM

A AVE2012-08-10

15:34G

arage20

1.126

< 322

< 9.6< 4

< 5.5< 3

< 2.6< 4

< 0.00016< 0.081

< 10R24503SVH

24503 RAVENN

A AVE2010-08-09

09:13House

190.88

16< 6.4

< 9.1< 3.6

< 5.9< 8.2

< 4.6< 3.9

< 60.00032

< 0.12< 3.8

R24503SVG24503 RAVEN

NA AVE

2010-08-0910:01

Garage

173.6

38< 6.2

1211

13< 7.9

< 4.4< 3.7

< 5.8< 0.00023

< 0.12< 3.6

R24503SVB24503 RAVEN

NA AVE

2010-08-0911:01

Back19

0.6232

< 6.2< 8.8

5.7< 5.7

< 7.9< 4.4

< 3.7< 5.8

< 0.00023< 0.12

9.5R24503SVG

24503 RAVENN

A AVE2012-11-08

14:58G

arage15

5.2< 28

< 0.58< 8.8

< 14< 5.7

19< 4.4

< 3.7< 5.8

< 0.00023< 0.12

< 14R24503SVH

24503 RAVENN

A AVE2012-11-08

15:09House

191.3

< 280.6 J, b

< 8.8< 14

< 5.7< 7.9

< 4.4< 3.7

< 5.8< 0.00023

< 0.12< 14

R24503SVB24503 RAVEN

NA AVE

2012-11-0815:33

Back22

0.98< 29

< 0.6< 9.1

< 14< 5.9

< 8.2< 4.6

< 3.9< 6

< 0.00024< 0.12

< 15M

24506SVH24506 M

ARBELLA AVE2010-04-21

09:55House

182.8

17< 2.3

359

< 5.7< 7.9

400130

< 5.8< 0.00023

< 0.12< 3.6

M24506SVF

24506 MARBELLA AVE

2010-04-2110:11

Front20

0.23230

< 2.410

19< 5.8

< 8< 4.5

< 3.8< 5.9

< 0.00024< 0.12

< 3.7M

24506SVB224506 M

ARBELLA AVE2010-08-10

09:00Back

19< 0.023

21< 6.1

< 8.7< 3.4

< 5.6< 7.8

< 4.4< 3.7

< 5.7< 0.00023

< 0.12< 3.6

M24506SVH

24506 MARBELLA AVE

2011-01-2610:01

House17

2.5< 11

1.6 J, b< 8.6

< 3.4< 5.6

< 7.7< 4.3

< 3.6< 5.6

< 0.00023< 0.11

< 3.6M

24506SVF24506 M

ARBELLA AVE2011-01-26

10:45Front

210.16

< 111.1 J, b

< 8.9< 3.5

< 5.8< 8

< 4.5< 3.8

< 5.9< 0.00024

< 0.12< 3.7

M24506SVFD

24506 MARBELLA AVE

2011-01-2610:45

Front21

0.16< 11

0.53 J, b< 8.9

< 3.5< 5.8

< 8< 4.5

< 3.8< 5.9

< 0.00024< 0.12

< 3.7M

24506SVB224506 M

ARBELLA AVE2011-01-26

11:36Back

20< 0.023

< 110.88 J, b

< 8.8< 3.4

< 5.7< 7.9

7.7< 3.7

< 5.8< 0.00023

< 0.12< 3.6

M24506 SVF

24506 MARBELLA AVE

2012-03-1510:29

Front22

0.11< 33

3.1 J, b< 10

< 16< 6.8

< 9.4< 5.2

< 4.4< 6.9

< 0.00016< 0.079

< 17M

24506SVFS24506 M

ARBELLA AVE2012-03-15

10:29Front

21.5< 0.16 U

< 18 U< 1 U

< 18 U< 18 U

< 1.8 U< 1.8 U

< 1.8 U< 1.8 U

2.6< 0.16 U

< 18 UM

24506 SVH24506 M

ARBELLA AVE2012-03-15

10:29House

182.9

< 190.71 J, b

< 6.1< 9.5

< 3.9< 5.5

< 3< 2.6

< 4< 0.00016

< 0.08< 10

M24506 SVB2

24506 MARBELLA AVE

2012-03-1511:23

Back21

< 0.016< 32

3.8 J, b< 10

< 16< 6.6

< 9.2< 5.1

< 4.3< 6.7

< 0.00016< 0.078

< 17M

24506SVB224506 M

ARBELLA AVE2013-07-02

14:47Back

20< 0.025

< 300.93 J, b

< 9.4< 15

< 6.1< 8.5

< 4.7< 4

< 6.2< 0.00025

< 0.12< 16

M24506SVB2D

24506 MARBELLA AVE

2013-07-0214:47

Back20

< 0.02437

< 0.83< 9.2

< 14< 6

< 8.3< 4.6

< 3.9< 6

< 0.00024< 0.12

< 15

Page 243: Table Proposed Cleanup Levels Groundwater · 10/21/2013  · Table 04 Summery of PrsllMnery Cost ES11motee for Soleening Feasibility Study Former Kest Property Carson, CA GeotFnlenGOneullanle

Table B-2Sub-Slab Soil Vapor Results

Former Kast Property

Carson, California

Residential Properties Sampled Through August 31, 2013

Page 11 of 235

Oxygen

Oxygen/Argon

Carbon Dioxide

AcetoneN

aphthaleneEthanol

2-Butanone (M

ethyl Ethyl Ketone)

ChloroformTetrachloro-

etheneToluene

BenzeneFreon 12

Methane

HeliumCarbon

DisulfideM

OL %

MO

L %M

OL %

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

MO

L %M

OL %

UG

/M3

100.00%100.00%

92.56%52.63%

49.98%18.72%

17.61%16.54%

8.00%7.84%

7.80%6.94%

6.17%5.34%

4.80%Sam

ple IDAddress

Sample D

ateSam

ple Time

Location

AnalyteU

nitsFrequency of D

etection

M24506SVH

24506 MARBELLA AVE

2013-07-0214:55

House17

3.840

0.8 J, b< 8.9

< 14< 5.8

< 8< 4.4

< 3.8< 5.8

< 0.00024< 0.12

< 15M

24506SVF24506 M

ARBELLA AVE2013-07-02

15:12Front

210.4

< 30< 0.86

< 9.6< 15

< 6.2< 8.7

< 4.8< 4.1

< 6.3< 0.00026

< 0.13< 16

N24508SVH

24508 NEPTU

NE AVE

2010-06-1109:06

House20

0.4537

< 2.220

10< 5.5

< 7.6< 4.2

< 3.6< 5.5

< 0.00022< 0.11

< 3.5N

24508SVB24508 N

EPTUN

E AVE2010-06-11

10:01Back

20< 0.023

50< 2.3

117

< 5.7< 7.9

< 4.4< 3.7

< 5.8< 0.00023

< 0.12< 3.6

N24508SVF

24508 NEPTU

NE AVE

2010-06-1110:45

Front20

0.06337

< 2.59.9

6.9< 6

< 8.4< 4.6

< 3.9< 6.1

< 0.00025< 0.12

< 3.8N

24508SVF24508 N

EPTUN

E AVE2011-01-28

10:23Front

210.098

< 110.74 J, b

< 8.4< 3.3

< 5.5< 7.6

< 4.2< 3.6

< 5.5< 0.00022

< 0.11< 3.5

N24508SVH

24508 NEPTU

NE AVE

2011-01-2811:03

House20

0.4637

0.6 J, b< 8.4

< 3.3< 5.5

< 7.6< 4.2

< 3.6< 5.5

< 0.00022< 0.11

< 3.5N

24508SVB24508 N

EPTUN

E AVE2011-01-28

11:35Back

210.39

< 110.76 J, b

< 8.8< 3.4

< 5.7< 7.9

< 4.4< 3.7

< 5.8< 0.00023

< 0.12< 3.6

N24508SVBS

24508 NEPTU

NE AVE

2011-01-2811:35

Back21.8

0.438< 18

< 1.4< 18

< 18< 1.8

< 1.8< 1.8

< 1.82.6

< 0.16< 18

P24508SVF24508 PAN

AMA AVE

2010-05-1909:43

Front21

0.7117

< 6.2< 8.8

< 3.4< 5.7

< 7.9< 4.4

< 3.7< 5.8

< 0.00023< 0.12

< 3.6P24508SVH

24508 PANAM

A AVE2010-05-19

10:26House

210.19

59180

179.2

< 5.8< 8

< 4.59.9

6< 0.00024

0.12< 3.7

P24508SVB24508 PAN

AMA AVE

2010-05-1911:06

Back21

0.05234

17 J9

< 3.5< 5.8

< 8< 4.5

3.7 J< 5.9

< 0.00024< 0.12

< 3.7P24508SVH

24508 PANAM

A AVE2012-04-26

15:00House

210.42

< 192.3 J, b

< 6.1< 9.5

< 3.9< 5.5

3.4< 2.6

< 4< 0.00021

0.19< 10

P24508SVF24508 PAN

AMA AVE

2012-04-2615:07

Front20

0.72< 19

1.8 J, b< 6.1

< 9.5< 3.9

< 5.5< 3

< 2.6< 4

< 0.00016< 0.08

< 10P24508SVFD

24508 PANAM

A AVE2012-04-26

15:07Front

210.77

215.2 J, b

< 6.111

< 3.9< 5.5

< 3< 2.6

< 4< 0.00021

< 0.1< 10

P24508SVB24508 PAN

AMA AVE

2012-04-2615:34

Back21

0.44110

1.6 J, b< 6

16< 3.8

< 5.4< 3

< 2.5< 3.9

< 0.00016< 0.079

< 9.8R24508SVHA

24508 RAVENN

A AVE2011-01-31

09:42House

210.11

110.97 J, b

< 8.4< 3.3

< 5.5< 7.6

< 4.2< 3.6

< 5.5< 0.00022

< 0.11< 3.5

R24508SVF24508 RAVEN

NA AVE

2011-01-3110:21

Front21

< 0.02316

0.45 J, b< 8.8

< 3.4< 5.7

< 7.9< 4.4

< 3.7< 5.8

< 0.00023< 0.12

< 3.6R24508SVB

24508 RAVENN

A AVE2011-01-31

11:00Back

21< 0.022

211.3 J, b

< 8.4< 3.3

< 5.5< 7.6

< 4.2< 3.6

< 5.5< 0.00022

< 0.11< 3.5

R24508SVHA24508 RAVEN

NA AVE

2013-03-2910:00

House21

0.42< 28

0.77 J< 8.9

< 14< 5.8

< 8< 4.5

< 3.8< 5.9

< 0.000240.15

< 15R24508SVB

24508 RAVENN

A AVE2013-03-29

10:14Back

201

< 280.59 J

< 8.7< 14

< 5.7< 7.9

< 4.4< 3.7

< 5.7< 0.00023

< 0.12< 14

R24508SVBS24508 RAVEN

NA AVE

2013-03-2910:14

Back20.5

0.587< 22 U

< 0.92 U< 22 U

< 22 U3.7

< 2.2 U< 2.2 U

< 2.2 U2.3

< 0.18 U< 22 U

R24508SVF24508 RAVEN

NA AVE

2013-03-2910:49

Front22

0.08831

< 0.59< 9

< 14< 5.8

< 8.1< 4.5

< 3.8< 5.9

< 0.00024< 0.12

< 15R24508SVFD

24508 RAVENN

A AVE2013-03-29

10:49Front

220.091

51< 0.58

1216

< 5.7< 8

< 4.4< 3.8

< 5.8< 0.00024

< 0.12< 15

N24509SVH

24509 NEPTU

NE AVE

2010-05-0413:45

House20

0.3921

< 6.426

< 3.6< 5.9

< 8.2< 4.5

< 3.8< 6

< 0.00024< 0.12

< 3.8N

24509SVF24509 N

EPTUN

E AVE2010-05-04

15:44Front

210.026

31< 6.6

< 9.4< 3.7

< 6.1< 8.5

< 4.7< 4

< 6.2< 0.00025

0.16< 3.9

N24509SVB2

24509 NEPTU

NE AVE

2010-07-3009:30

Back20

0.8890 b

< 6.214

8.2< 5.7

< 7.9< 4.4

4.4< 5.8

< 0.00023< 0.12

< 3.6N

24509SVB2S24509 N

EPTUN

E AVE2010-07-30

09:30Back

21.30.805

< 17< 1.3

< 17< 17

< 1.7< 1.7

< 1.74.2

2.2< 0.16

< 17N

24509SVH24509 N

EPTUN

E AVE2012-07-06

10:10House

200.84

19< 2.8

< 5.7< 9

< 3.7< 5.2

< 2.9< 2.4

< 3.8< 0.00015

< 0.076< 9.5

N24509SVB2

24509 NEPTU

NE AVE

2012-07-0610:12

Back21

0.5421

< 2.78.7

< 8.6< 3.5

< 4.913

< 2.3< 3.6

< 0.00014< 0.072

< 9N

24509SVF24509 N

EPTUN

E AVE2012-07-06

11:02Front

210.46

25< 2.9

< 5.8< 9

< 3.7< 5.2

< 2.9< 2.4

< 3.8< 0.00015

< 0.076< 9.5

N24509SVFS

24509 NEPTU

NE AVE

2012-07-0611:02

Front21.1

0.455< 17 U

< 0.72 U< 17 U

< 17 U< 1.7 U

< 1.7 U< 1.7 U

< 1.7 U2.3

< 0.16 U< 17 U

N24509SVB2

24509 NEPTU

NE AVE

2013-03-1414:44

Back21

0.2932

1.6 J, b< 8.7

< 14< 5.6

< 7.8< 4.3

< 3.7< 5.7

< 0.00023< 0.12

< 14N

24509SVB2D24509 N

EPTUN

E AVE2013-03-14

14:44Back

210.3

281.3 J, b

< 8.8< 14

< 5.7< 7.9

< 4.4< 3.7

< 5.8< 0.00023

< 0.12< 14

N24509SVH

24509 NEPTU

NE AVE

2013-03-1414:52

House20

0.6541

1 J, b< 8.7

16< 5.7

< 7.9< 4.4

< 3.7< 5.7

< 0.00023< 0.12

< 14N

24509SVF24509 N

EPTUN

E AVE2013-03-14

15:14Front

200.32

652.6 J, b

9.421

< 5.9< 8.2

< 4.5< 3.8

< 6< 0.00024

< 0.12< 15

P24509SVH24509 PAN

AMA AVE

2010-11-1213:31

House13

512

2.2 J, b< 8.8

< 3.4< 5.7

< 7.9< 4.4

< 3.7< 5.8

< 0.00023< 0.12

4P24509SVF

24509 PANAM

A AVE2010-11-12

14:13Front

201.1

< 111.1 J, b

< 9< 3.5

< 5.8< 8.1

< 4.5< 3.8

< 5.9< 0.00024

0.19< 3.7

P24509SVB24509 PAN

AMA AVE

2010-11-1214:44

Back19

1.613

1.1 J, b< 9.1

< 3.6< 5.9

< 8.2< 4.6

< 3.9< 6

< 0.00024< 0.12

< 3.8P24509SVH

24509 PANAM

A AVE2013-02-07

09:44House

183.3

< 291.2 J, b

< 9.1< 14

< 5.9< 8.2

< 4.6< 3.9

< 6< 0.00024

< 0.12< 15

P24509SVB24509 PAN

AMA AVE

2013-02-0709:50

Back21

1.6< 60

< 1.2< 19

< 30< 12

< 17< 9.6

< 8.1< 12

< 0.000510.51

< 32P24509SVBD

24509 PANAM

A AVE2013-02-07

09:50Back

201.6

< 29< 0.6

< 9.1< 14

< 5.9< 8.2

< 4.6< 3.9

< 6< 0.00024

< 0.12< 15

P24509SVH24509 PAN

AMA AVE

2013-06-2810:31

House14

5.4< 30

3.4 J, b< 9.4

< 15< 6.1

< 8.5< 4.7

< 4< 6.2

< 0.00025< 0.12

< 16P24509SVB

24509 PANAM

A AVE2013-06-28

10:34Back

174.1

< 281.1 J, b

< 9< 14

< 5.8< 8.1

< 4.5< 3.8

< 5.9< 0.00024

< 0.12< 15

P24509SVBD24509 PAN

AMA AVE

2013-06-2810:34

Back17

4.1< 28

1.2 J, b< 9

< 14< 5.8

< 8.1< 4.5

< 3.8< 5.9

< 0.00024< 0.12

< 15P24509SVFA

24509 PANAM

A AVE2013-06-28

10:54Front

21< 0.024

403.7 J, b

< 8.8< 14

< 5.7< 8

< 4.4< 3.8

< 5.8< 0.00024

< 0.12< 15

R24509SVH24509 RAVEN

NA AVE

2010-06-2110:03

House20

0.4427

< 2.411

< 3.5< 5.8

< 8.152

< 3.8< 5.9

< 0.00024< 0.12

51R24509SVB

24509 RAVENN

A AVE2010-06-21

10:50Back

200.12

54< 2.3

105.2

20< 7.9

< 4.4< 3.7

< 5.8< 0.00023

< 0.12< 3.6

R24509SVG24509 RAVEN

NA AVE

2010-10-1512:12

Garage

200.78

46< 1.4

< 911

< 5.810

< 4.5< 3.8

< 5.9< 0.00024

< 0.12< 3.7

R24509SVG24509 RAVEN

NA AVE

2012-04-1215:49

Garage

200.58

540.77 J, b

< 6< 9.3

< 3.810

< 3< 2.5

< 3.9< 0.00026

< 0.13< 9.8

R24509SVB24509 RAVEN

NA AVE

2013-08-1510:06

Back17

2< 28

0.99 J, b< 8.8

< 14< 5.7

< 7.9< 4.4

< 3.7< 5.8

< 0.00023< 0.12

< 14R24509SVBS

24509 RAVENN

A AVE2013-08-15

10:06Back

17.82.1

< 19 U< 0.69 U

< 19 U< 19 U

4.5< 1.9 U

< 1.9 U< 1.9 U

2.1< 0.15 U

< 19 U

Page 244: Table Proposed Cleanup Levels Groundwater · 10/21/2013  · Table 04 Summery of PrsllMnery Cost ES11motee for Soleening Feasibility Study Former Kest Property Carson, CA GeotFnlenGOneullanle

Table B-2Sub-Slab Soil Vapor Results

Former Kast Property

Carson, California

Residential Properties Sampled Through August 31, 2013

Page 12 of 235

Oxygen

Oxygen/Argon

Carbon Dioxide

AcetoneN

aphthaleneEthanol

2-Butanone (M

ethyl Ethyl Ketone)

ChloroformTetrachloro-

etheneToluene

BenzeneFreon 12

Methane

HeliumCarbon

DisulfideM

OL %

MO

L %M

OL %

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

MO

L %M

OL %

UG

/M3

100.00%100.00%

92.56%52.63%

49.98%18.72%

17.61%16.54%

8.00%7.84%

7.80%6.94%

6.17%5.34%

4.80%Sam

ple IDAddress

Sample D

ateSam

ple Time

Location

AnalyteU

nitsFrequency of D

etection

R24509SVHA24509 RAVEN

NA AVE

2013-08-1510:13

House20

0.46< 29

5.1 J, b< 9.2

< 14< 6

< 8.3< 4.6

< 3.9< 6

< 0.00024< 0.12

< 15R24509SVG

24509 RAVENN

A AVE2013-08-15

10:34G

arage21

0.77< 28

1.3 J, b< 8.9

< 14< 5.8

13< 4.4

< 3.8< 5.8

< 0.00024< 0.12

< 15M

24512SVB24512 M

ARBELLA AVE2011-04-28

08:53Back

210.085

214.5 J, b

< 9.9< 16

< 6.4< 9

< 5< 4.2

< 6.50.00032

< 0.13< 16

M24512SVBS

24512 MARBELLA AVE

2011-04-2808:53

Back22.1

< 0.1723

< 1.1< 19

< 19< 1.9

< 1.9< 1.9

< 1.92.5

< 0.17< 19

M24512SVH

24512 MARBELLA AVE

2011-04-2809:34

House21

0.085< 11

2.4 J, b< 9.1

< 14< 5.9

< 8.2< 4.6

< 3.9< 6

< 0.0005< 0.25

< 15M

24512SVF24512 M

ARBELLA AVE2011-04-28

10:12Front

200.055

191.3 J, b

< 8.6< 14

< 5.6< 7.8

< 4.3< 3.6

< 5.7< 0.00023

< 0.11< 14

M24512SVFS

24512 MARBELLA AVE

2011-04-2810:12

Front21.7

< 0.19< 20

< 1.2< 20

< 202.3

< 2< 2

< 22.8

< 0.19< 20

M24512SVH

24512 MARBELLA AVE

2012-01-2009:53

House20

1< 7.2

0.92 J, b< 5.7

< 9< 3.7

< 5.2< 2.9

< 2.4< 3.8

< 0.00015< 0.076

< 9.5M

24512SVF24512 M

ARBELLA AVE2012-01-20

11:36Front

210.72

100.46 J, b

< 5.7< 9

< 3.7< 5.2

< 2.9< 2.4

< 3.8< 0.00015

< 0.076< 9.5

M24512SVFS

24512 MARBELLA AVE

2012-01-2011:36

Front21.4

0.775< 17 U

< 0.99 U< 17 U

< 17 U< 1.7 U

< 1.7 U< 1.7 U

< 1.7 U2.1

< 0.16 U< 17 U

M24512SVB

24512 MARBELLA AVE

2012-01-2012:28

Back21

0.129.8

0.42 J, b< 6.1

< 9.5< 3.9

< 5.5< 3

< 2.6< 4

0.00018< 0.08

< 10N

24512SVH24512 N

EPTUN

E AVE2013-07-26

14:42House

200.76

< 282.2 J, b

< 8.8< 14

< 5.7< 7.9

8.4< 3.7

< 5.8< 0.00023

< 0.12< 14

N24512SVB

24512 NEPTU

NE AVE

2013-07-2614:49

Back21

0.1477

1.3 J, b56

< 14< 5.6

< 7.8< 4.3

< 3.6< 5.7

< 0.00023< 0.11

< 14N

24512SVF24512 N

EPTUN

E AVE2013-07-26

15:09Front

200.21

624.4 J, b

< 9.3< 14

< 6< 8.4

< 4.6< 3.9

< 6.1< 0.00025

< 0.12< 15

P24512SVH24512 PAN

AMA AVE

2010-11-0809:27

House20

0.89< 11

0.85 J, b< 8.8 U

J< 3.5

< 5.7< 8

< 4.4< 3.8

< 5.8< 0.00024

< 0.12< 3.6

P24512SVF24512 PAN

AMA AVE

2010-11-0810:01

Front19

0.45450

1.1 J, b63 J

2419

< 8< 4.4

< 3.8< 5.8

< 0.00024< 0.12

< 3.6P24512SVFS

24512 PANAM

A AVE2010-11-08

10:01Front

19.90.529

5000.91 J

11040

16< 2.7

< 2.7< 2.7

< 2.7< 0.15

< 27P24512SVB

24512 PANAM

A AVE2010-11-08

10:43Back

21< 0.025

161.2 J, b

< 9.3 UJ

< 3.6< 6

< 8.3< 4.6

< 3.9< 6.1

< 0.00025< 0.12

< 3.8P24512SVH

24512 PANAM

A AVE2012-11-15

15:43House

231.1

< 283 J, b

< 8.8< 14

< 5.7< 7.9

< 4.4< 3.7

< 5.8< 0.00031

< 0.16< 14

P24512SVF24512 PAN

AMA AVE

2012-11-1515:46

Front19

2.1< 27

1.8 J, b< 8.4

< 1312

< 7.6< 4.2

< 3.6< 5.5

< 0.00022< 0.11

< 14P24512SVB

24512 PANAM

A AVE2012-11-15

16:26Back

210.16

< 272.5 J, b

9.2< 14

< 5.6< 7.8

5.5< 3.6

< 5.7< 0.00023

< 0.11< 14

P24512SVH24512 PAN

AMA AVE

2013-06-1309:49

House20

1.2< 26

< 2.4< 8.2

< 13< 5.3

< 7.4< 4.1

< 3.5< 5.4

< 0.00022< 0.11

< 14P24512SVF

24512 PANAM

A AVE2013-06-13

10:01Front

202.1

< 29< 2.7

< 9.3< 15

< 6< 8.4

< 4.7< 4

< 6.1< 0.00025

< 0.12< 15

P24512SVFS24512 PAN

AMA AVE

2013-06-1310:01

Front20.2

2.11< 20 U

< 0.73 U< 20 U

< 20 U< 2 U

< 2 U< 2 U

< 2 U< 2 U

< 0.16 U< 20 U

P24512SVB24512 PAN

AMA AVE

2013-06-1310:25

Back22

0.1836

< 2.7< 9.4

< 15< 6.1

< 8.5< 4.7

< 4< 6.2

< 0.00025< 0.12

< 16N

24513SVH24513 N

EPTUN

E AVE2010-08-05

09:03House

181.9

3210 J

< 8.8< 3.4

< 5.7< 7.9

< 4.4< 3.7

< 5.8< 0.00023

< 0.12< 3.6

N24513SVB

24513 NEPTU

NE AVE

2010-08-0509:41

Back20

< 0.02351

< 6.2< 8.8

3.5< 5.7

< 7.9< 4.4

< 3.7< 5.8

< 0.00023< 0.12

< 3.6N

24513SVBD24513 N

EPTUN

E AVE2010-08-05

09:41Back

20< 0.023

73< 6.2

9.95.8

< 5.7< 7.9

< 4.4< 3.7

< 5.8< 0.00023

< 0.125.6

N24513SVF

24513 NEPTU

NE AVE

2010-08-0510:21

Front20

< 0.02373

< 6.210

9.9< 5.7

< 7.9< 4.4

< 3.7< 5.8

< 0.00023< 0.12

< 3.6N

24513SVF24513 N

EPTUN

E AVE2012-08-02

15:00Front

200.88

< 20< 3.1

< 6.3< 9.9

< 4.1< 5.7

< 3.2< 2.7

< 4.2< 0.00017

< 0.084< 10

N24513SVFD

24513 NEPTU

NE AVE

2012-08-0215:00

Front20

0.84< 20

< 3.1< 6.3

< 9.9< 4.1

< 5.7< 3.2

< 2.7< 4.2

< 0.00017< 0.084

< 10N

24513SVH24513 N

EPTUN

E AVE2012-08-02

15:26House

182.5

< 25< 3.9

< 7.8< 12

< 5.1< 7

< 3.9< 3.3

< 5.1< 0.00016

< 0.078< 13

N24513SVB

24513 NEPTU

NE AVE

2012-08-0215:30

Back19

2.7< 18

< 2.9< 5.8

< 9.1< 3.8

< 5.2< 2.9

< 2.5< 3.8

< 0.00016< 0.078

< 9.6N

24513SVB24513 N

EPTUN

E AVE2013-06-05

14:57Back

192.9

< 30< 2.8

< 9.6< 15

< 6.2< 8.7

< 4.8< 4.1

< 6.3< 0.00026

< 0.13< 16

N24513SVBS

24513 NEPTU

NE AVE

2013-06-0514:57

Back19.3

2.86< 23 U

< 0.82 U< 23 U

< 23 U< 2.3 U

< 2.3 U< 2.3 U

< 2.3 U< 2.3 U

< 0.18 U< 23 U

N24513SVH

24513 NEPTU

NE AVE

2013-06-0515:16

House19

337

3.1 J, b< 9

< 14< 5.8

< 8.1< 4.5

< 3.8< 5.9

< 0.00024< 0.12

< 15N

24513SVF24513 N

EPTUN

E AVE2013-06-05

15:25Front

211.4

< 29< 2.6

< 9.1< 14

< 5.9< 8.2

5.9 b< 3.9

< 6< 0.00024

< 0.12< 15

R24513SVB24513 RAVEN

NA AVE

2010-04-2312:51

Back20

0.6629

< 2.38.4 J

4.1< 5.6

< 7.8< 4.3

9.3< 5.7

< 0.00023< 0.11

< 3.6R24513SVH

24513 RAVENN

A AVE2010-04-23

14:30House

181.2

1503 J, b

11022

< 5.7< 7.9

1157

< 5.8< 0.00023

< 0.12< 3.6

R24513SVF24513 RAVEN

NA AVE

2010-04-2315:45

Front20

0.16180

< 2.319

5.4< 5.7

< 7.9< 4.4

< 3.7< 5.8

< 0.00023< 0.12

< 3.6R24513SVH

24513 RAVENN

A AVE2010-08-19

13:44House

153.4

14< 1.4

< 9< 3.5

< 5.8< 8.1

< 4.5< 3.8

< 5.9< 0.00024

< 0.12< 3.7

R24513SVF24513 RAVEN

NA AVE

2010-08-1914:33

Front20

1.315

< 1.4< 9

4.2< 5.8

< 8.1< 4.5

< 3.8< 5.9

< 0.00024< 0.12

< 3.7R24513SVB

24513 RAVENN

A AVE2010-08-19

15:14Back

181.9

25< 1.3

< 8.88.3

< 5.7< 7.9

< 4.4< 3.7

< 5.8< 0.00023

< 0.12< 3.6

R24513SVF24513 RAVEN

NA AVE

2012-05-2514:44

Front21

0.86< 19

< 0.31< 6

< 9.4< 3.9

< 5.4< 3

< 2.6< 4

< 0.00016< 0.078

< 10R24513SVFD

24513 RAVENN

A AVE2012-05-25

14:44Front

210.89

< 19< 0.31

< 6< 9.3

< 3.8< 5.4

< 3< 2.5

< 3.9< 0.00016

< 0.079< 9.8

R24513SVB24513 RAVEN

NA AVE

2012-05-2515:00

Back20

1.4< 18

0.38 J, b< 5.6

< 8.8< 3.7

< 5.1< 2.8

< 2.4< 3.7

< 0.00015< 0.075

< 9.3R24513SVHA

24513 RAVENN

A AVE2013-07-25

14:42House

210.14

< 281.2 J, b

< 9< 14

< 5.8< 8.1

< 4.5< 3.8

< 5.9< 0.00024

0.19< 15

R24513SVB24513 RAVEN

NA AVE

2013-07-2514:51

Back18

1.8< 29

1.6 J, b< 9.1

< 14< 5.9

< 8.2< 4.6

< 3.9< 6

< 0.00024< 0.12

< 15R24513SVF

24513 RAVENN

A AVE2013-07-25

15:15Front

201

360.92 J, b

< 9.1< 14

< 5.9< 8.2

< 4.6< 3.9

< 6< 0.00024

< 0.12< 15

M24516SVH

24516 MARBELLA AVE

2010-05-2709:16

House18

2.3110

14 J87

14< 5.7

< 7.910

3.7< 5.8

< 0.00023< 0.12

5M

24516SVB24516 M

ARBELLA AVE2010-05-27

10:11Back

191.4

30< 7

116

< 5.8< 8.1

< 4.59.2

< 5.9< 0.00024

< 0.12< 3.7

M24516SVG

24516 MARBELLA AVE

2010-05-2710:55

Garage

200.22

19< 7

< 9< 3.5

< 5.8< 8.1

< 4.53.8

< 5.9< 0.00024

< 0.12< 3.7

Page 245: Table Proposed Cleanup Levels Groundwater · 10/21/2013  · Table 04 Summery of PrsllMnery Cost ES11motee for Soleening Feasibility Study Former Kest Property Carson, CA GeotFnlenGOneullanle

Table B-2Sub-Slab Soil Vapor Results

Former Kast Property

Carson, California

Residential Properties Sampled Through August 31, 2013

Page 13 of 235

Oxygen

Oxygen/Argon

Carbon Dioxide

AcetoneN

aphthaleneEthanol

2-Butanone (M

ethyl Ethyl Ketone)

ChloroformTetrachloro-

etheneToluene

BenzeneFreon 12

Methane

HeliumCarbon

DisulfideM

OL %

MO

L %M

OL %

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

MO

L %M

OL %

UG

/M3

100.00%100.00%

92.56%52.63%

49.98%18.72%

17.61%16.54%

8.00%7.84%

7.80%6.94%

6.17%5.34%

4.80%Sam

ple IDAddress

Sample D

ateSam

ple Time

Location

AnalyteU

nitsFrequency of D

etection

M24516SVH

24516 MARBELLA AVE

2012-05-2414:57

House18

2.7< 18

1.6 J, b< 5.8

< 9.1< 3.8

< 5.2< 2.9

< 2.5< 3.8

< 0.00016< 0.078

< 9.6M

24516SVG24516 M

ARBELLA AVE2012-05-24

15:14G

arage21

0.55< 18

0.71 J, b< 5.8

< 9.1< 3.8

< 5.2< 2.9

< 2.5< 3.8

< 0.00016< 0.078

< 9.6M

24516SVGD

24516 MARBELLA AVE

2012-05-2415:14

Garage

210.56

< 180.66 J, b

< 5.8< 9.1

< 3.8< 5.2

< 2.9< 2.5

< 3.8< 0.00016

< 0.078< 9.6

M24516SVB

24516 MARBELLA AVE

2012-05-2415:39

Back19

2.3< 18

0.7 J, b< 5.8

< 9.1< 3.8

< 5.2< 2.9

< 2.5< 3.8

< 0.00016< 0.078

< 9.6M

24517SVF24517 M

ARBELLA AVE2009-10-06

13:40Front

210.068

1204.8 J

146.9

< 5.67.9

< 4.3< 3.7

< 5.7< 0.00023

42M

24517SVB24517 M

ARBELLA AVE2009-10-06

17:16Back

210.028

< 11< 2.9

< 8.8< 3.4

< 5.7< 7.9

< 4.4< 3.7

< 5.8< 0.00023

< 3.6M

24517SVBD24517 M

ARBELLA AVE2009-10-06

17:16Back

210.029

< 11< 2.9

< 8.8< 3.4

< 5.7< 7.9

< 4.4< 3.7

< 5.8< 0.00023

< 3.6M

24517SVH24517 M

ARBELLA AVE2011-02-08

09:42House

20< 0.024

150.92 J, b

< 9.1< 3.6

< 5.915

< 4.6< 3.9

< 6< 0.00024

< 0.12< 3.8

M24517SVH

24517 MARBELLA AVE

2011-10-1113:46

House22

0.0810

< 0.31< 6

< 9.4< 3.9

32< 3

< 2.6< 4

< 0.00021< 0.1

< 10M

24517SVF24517 M

ARBELLA AVE2011-10-11

14:20Front

201.1

19< 0.33

66< 9.9

< 4.117

< 3.2< 2.7

< 4.2< 0.00022

< 0.11< 10

M24517SVFD

24517 MARBELLA AVE

2011-10-1114:20

Front20

1.19.1

< 0.33< 6.4

< 10< 4.1

9.9< 3.2

< 2.7< 4.2

< 0.00022< 0.11

< 10M

24517SVB24517 M

ARBELLA AVE2011-10-11

14:57Back

220.13

8.3< 0.31

< 5.9< 9.2

< 3.866

< 2.9< 2.5

< 3.8< 0.0002

< 0.1< 9.7

M24517SVBD

24517 MARBELLA AVE

2011-10-1114:57

Back21

0.148.4

< 0.31< 5.9

< 9.2< 3.8

66< 2.9

< 2.5< 3.8

< 0.0002< 0.1

< 9.7M

24517SVB24517 M

ARBELLA AVE2012-03-23

15:05Back

210.055

< 180.49 J, b

< 5.8< 9.1

< 3.8< 5.2

< 2.9< 2.5

< 3.8< 0.00016

< 0.078< 9.6

M24517SVBD

24517 MARBELLA AVE

2012-03-2315:05

Back21

0.05468 j

2.5 J, b5.9 b

30 j< 3.8

< 5.2< 2.9

< 2.5< 3.8

< 0.00016< 0.078

< 9.6M

24517SVF24517 M

ARBELLA AVE2012-03-23

15:16Front

210.74

221.6 J, b

< 5.826

< 3.85.7

456.4

< 3.8< 0.00016

< 0.078< 9.6

M24517SVB

24517 MARBELLA AVE

2013-08-2014:42

Back21

0.054< 27

3.4 J, b< 8.7

< 14< 5.6

< 7.8< 4.3

< 3.7< 5.7

< 0.00023< 0.12

< 14M

24517SVH24517 M

ARBELLA AVE2013-08-20

14:57House

200.077

923.4 J, b

< 9< 14

< 5.89.6

< 4.5< 3.8

< 5.9< 0.00024

< 0.12< 15

M24517SVF

24517 MARBELLA AVE

2013-08-2015:02

Front20

1< 27

1.5 J, b< 8.6

< 13< 5.6

15< 4.3

< 3.6< 5.6

< 0.00023< 0.11

< 14N

24518SVB24518 N

EPTUN

E AVE2010-07-28

10:05Back

20< 0.024

40< 6.4

125.5

57< 8.2

< 4.618

< 6< 0.00024

< 0.12< 3.8

N24518SVH

24518 NEPTU

NE AVE

2010-07-2811:06

House20

0.682

< 6.115

10< 5.6

< 7.8< 4.3

5< 5.7

< 0.00023< 0.12

< 3.6N

24518SVG24518 N

EPTUN

E AVE2010-07-28

12:10G

arage20

1.724

< 6.2< 8.8

4.2< 5.7

< 7.9< 4.4

4.4< 5.8

< 0.00023< 0.12

< 3.6N

24518SVH24518 N

EPTUN

E AVE2013-04-26

09:59House

210.92

< 261 J, b

< 8.1< 13

< 5.3< 7.3

< 4.1< 3.4

< 5.3< 0.00022

< 0.11< 13

N24518SVG

24518 NEPTU

NE AVE

2013-04-2610:29

Garage

201.4

< 271.2 J, b

< 8.6< 13

< 5.6< 7.7

< 4.3< 3.6

< 5.6< 0.00023

< 0.11< 14

N24518SVB

24518 NEPTU

NE AVE

2013-04-2610:32

Back20

0.94< 30

0.8 J, b< 9.4

< 15910

< 8.5< 4.7

< 4< 6.2

< 0.00025< 0.12

< 16N

24518SVBD24518 N

EPTUN

E AVE2013-04-26

10:32Back

200.96

350.91 J, b

< 9.4< 15

970< 8.5

< 4.7< 4

< 6.2< 0.00025

< 0.12< 16

N24518SVB

24518 NEPTU

NE AVE

2013-07-1614:56

Back18

1.839

< 0.83< 9.3

< 14930

9.3< 4.6

< 3.9< 6.1

< 0.00025< 0.12

< 15N

24518SVBD24518 N

EPTUN

E AVE2013-07-16

14:56Back

181.8

< 30< 0.84

< 9.4< 15

910< 8.5

< 4.7< 4

< 6.2< 0.00025

< 0.12< 16

N24518SVH

24518 NEPTU

NE AVE

2013-07-1615:35

House20

231

4 J, b< 9.7

< 15< 6.3

< 8.8< 4.9

< 4.1< 6.4

< 0.00026< 0.13

< 16N

24518SVG24518 N

EPTUN

E AVE2013-07-16

15:38G

arage20

140

2.4 J, b< 9

< 14< 5.8

< 8.15.2

< 3.8< 5.9

< 0.00024< 0.12

< 15R24518SVH2

24518 RAVENN

A AVE2010-04-26

14:09House

200.47

120< 6.2

1111

< 5.7< 7.9

< 4.4< 3.7

< 5.8< 0.00023

< 0.12< 3.6

R24518SVH124518 RAVEN

NA AVE

2010-04-2615:09

House20

1.312

< 6.4< 9.1

< 3.6< 5.9

< 8.2< 4.6

< 3.9< 6

< 0.00024< 0.12

< 3.8R24518SVF

24518 RAVENN

A AVE2010-04-26

16:04Front

200.78

13< 5.9

< 8.4< 3.3

< 5.437

< 4.2< 3.6

< 5.5< 0.00022

< 0.11< 3.5

R24518SVF24518 RAVEN

NA AVE

2012-07-1214:58

Front20

0.74< 17

< 2.7< 5.4

< 8.5< 3.5

< 4.9< 2.7

< 2.3< 3.6

< 0.00014< 0.072

< 9R24518SVFD

24518 RAVENN

A AVE2012-07-12

14:58Front

200.79

< 17< 2.7

< 5.4< 8.5

< 3.5< 4.9

< 2.7< 2.3

< 3.6< 0.00014

< 0.072< 9

R24518SVH124518 RAVEN

NA AVE

2012-07-1215:08

House19

1.4< 19

< 3< 6

< 9.3< 3.8

< 5.4< 3

< 2.5< 3.9

< 0.00016< 0.079

< 9.8R24518SVH2

24518 RAVENN

A AVE2012-07-12

15:49House

192.2

26< 3.1

8.2< 9.9

< 4.1< 5.7

< 3.2< 2.7

< 4.2< 0.00017

< 0.084< 10

N24519SVB

24519 NEPTU

NE AVE

2010-08-1009:01

Back19

1.814

< 6.2< 8.8

< 3.5< 5.7

< 8< 4.4

< 3.8< 5.8

< 0.00024< 0.12

< 3.6N

24519SVH24519 N

EPTUN

E AVE2010-08-10

09:59House

162.7

15< 6.2

< 8.8< 3.4

< 5.7< 7.9

< 4.4< 3.7

< 5.8< 0.00023

< 0.12< 3.6

N24519SVF

24519 NEPTU

NE AVE

2010-08-1010:47

Front18

0.839

< 6.411

15< 5.9

< 8.2< 4.6

< 3.9< 6

< 0.00024< 0.12

< 3.8N

24519SVB24519 N

EPTUN

E AVE2012-06-29

14:47Back

192

< 20< 3.1

< 6.3< 9.9

< 4.1< 5.7

< 3.2< 2.7

< 4.2< 0.00017

< 0.084< 10

N24519SVBD

24519 NEPTU

NE AVE

2012-06-2914:47

Back19

2.1< 19

< 3.1< 6.2

< 9.7< 4

< 5.6< 3.1

< 2.6< 4

< 0.00016< 0.082

< 10N

24519SVH24519 N

EPTUN

E AVE2012-06-29

14:56House

202.1

< 18< 2.9

< 5.8< 9.1

< 3.8< 5.2

< 2.9< 2.5

< 3.8< 0.00016

< 0.078< 9.6

N24519SVF

24519 NEPTU

NE AVE

2012-06-2915:26

Front19

1.723

< 3.1< 6.3

< 9.9< 4.1

< 5.7< 3.2

< 2.7< 4.2

< 0.00017< 0.084

< 10P24519SVH

24519 PANAM

A AVE2010-10-18

00:00House

180.29

14< 1.3

< 8.8< 3.4

9.3< 7.9

< 4.4< 3.7

< 5.8< 0.00023

< 0.12< 3.6

P24519SVF24519 PAN

AMA AVE

2010-10-1813:31

Front20

< 0.02313

< 1.3< 8.6

< 3.4< 5.6

< 7.8< 4.3

< 3.6< 5.7

< 0.00023< 0.11

< 3.6P24519SVFS

24519 PANAM

A AVE2010-10-18

13:31Front

20.8< 0.15

160.5 J

< 16< 16

< 1.6< 1.6

1.9< 1.6

2.2< 0.15

< 16P24519SVB

24519 PANAM

A AVE2010-10-18

14:14Back

191

15< 1.3

< 8.6< 3.4

< 5.6< 7.8

< 4.3< 3.6

< 5.7< 0.00023

< 0.11< 3.6

P24519SVBS24519 PAN

AMA AVE

2010-10-1814:14

Back20.2

1.26< 17

< 1.3< 17

< 17< 1.7

< 1.7< 1.7

< 1.72.1

< 0.15< 17

P24519SVB24519 PAN

AMA AVE

2013-06-0614:48

Back20

1.728

< 2.5< 8.6

< 13< 5.5

< 7.7< 4.3

< 3.6< 5.6

< 0.00023< 0.11

< 14P24519SVH

24519 PANAM

A AVE2013-06-06

14:48House

191.7

< 29< 2.7

< 9.3< 15

< 6< 8.4

18< 4

< 6.1< 0.00025

< 0.12< 15

P24519SVF24519 PAN

AMA AVE

2013-06-0615:10

Front21

0.79< 29

< 2.7< 9.2

< 14< 6

< 8.3< 4.6

< 3.9< 6

< 0.00024< 0.12

< 15

Page 246: Table Proposed Cleanup Levels Groundwater · 10/21/2013  · Table 04 Summery of PrsllMnery Cost ES11motee for Soleening Feasibility Study Former Kest Property Carson, CA GeotFnlenGOneullanle

Table B-2Sub-Slab Soil Vapor Results

Former Kast Property

Carson, California

Residential Properties Sampled Through August 31, 2013

Page 14 of 235

Oxygen

Oxygen/Argon

Carbon Dioxide

AcetoneN

aphthaleneEthanol

2-Butanone (M

ethyl Ethyl Ketone)

ChloroformTetrachloro-

etheneToluene

BenzeneFreon 12

Methane

HeliumCarbon

DisulfideM

OL %

MO

L %M

OL %

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

MO

L %M

OL %

UG

/M3

100.00%100.00%

92.56%52.63%

49.98%18.72%

17.61%16.54%

8.00%7.84%

7.80%6.94%

6.17%5.34%

4.80%Sam

ple IDAddress

Sample D

ateSam

ple Time

Location

AnalyteU

nitsFrequency of D

etection

M24522SVH

24522 MARBELLA AVE

2010-04-3009:04

House21

0.23< 11

< 6.1< 8.7

< 3.4< 5.6

< 7.8< 4.3

< 3.7< 5.7

< 0.00023< 0.12

< 3.6M

24522SVB24522 M

ARBELLA AVE2010-04-30

09:57Back

181.1

26< 6.4

1814

< 5.9< 8.2

< 4.6< 3.9

< 6< 0.00024

< 0.12< 3.8

M24522SVF

24522 MARBELLA AVE

2010-04-3010:58

Front21

0.04247

< 6.311

< 3.5< 5.8

< 8.1< 4.5

13< 5.9

< 0.00024< 0.12

< 3.7M

24522SVFD24522 M

ARBELLA AVE2010-04-30

10:58Front

210.04

45< 6.3

< 8.93.7

< 5.8< 8

< 4.54.2

< 5.9< 0.00024

< 0.12< 3.7

M24522SVG

24522 MARBELLA AVE

2010-10-1309:08

Front20

0.9117

< 1.3< 8.7

< 3.4< 5.6

< 7.8< 4.3

< 3.7< 5.7

< 0.00023< 0.12

< 3.6M

24522SVH24522 M

ARBELLA AVE2010-10-13

10:04House

200.8

10< 1.2

8.1< 3.2

< 5.2< 7.3

< 4< 3.4

< 5.3< 0.00022

< 0.11< 3.3

M24522SVB

24522 MARBELLA AVE

2010-10-1311:35

Back16

219

< 1.514

< 3.8< 6.3

< 8.8< 4.9

< 4.1< 6.4

< 0.00026< 0.13

< 4M

24522SVF24522 M

ARBELLA AVE2012-04-20

10:30Front

210.53

< 241.2 J, b

< 7.5< 12

< 4.8< 6.7

< 3.7< 3.2

< 4.9< 0.00015

< 0.076< 12

M24522SVH

24522 MARBELLA AVE

2012-04-2010:32

House20

0.98< 18

1.5 J, b< 5.8

< 9.1< 3.8

< 5.2< 2.9

< 2.5< 3.8

< 0.00016< 0.078

< 9.6M

24522SVB24522 M

ARBELLA AVE2012-04-20

11:11Back

181.7

69 j2.3 J, b

< 6.4< 10

< 4.2< 5.8

< 3.2< 2.7

< 4.2< 0.00017

< 0.086< 11

M24522SVBD

24522 MARBELLA AVE

2012-04-2011:11

Back18

1.7< 20

1 J, b< 6.3

< 9.9< 4.1

< 5.7< 3.2

< 2.7< 4.2

< 0.00017< 0.084

< 10N

24522SVH24522 N

EPTUN

E AVE2010-06-15

14:13House

191.7

11 b< 2.2

154.2

< 5.5< 7.7

< 4.2< 3.6

< 5.6< 0.00023

< 0.11< 3.5

N24522SVF

24522 NEPTU

NE AVE

2010-06-1514:59

Front20

0.04528 b

< 2.412

4.7< 5.9

< 8.2< 4.5

< 3.8< 6

< 0.00024< 0.12

8.9N

24522SVH24522 N

EPTUN

E AVE2011-02-02

13:54House

201.4

< 110.98 J, b

< 8.4< 3.3

< 5.5< 7.6

< 4.2< 3.6

< 5.5< 0.00022

< 0.11< 3.5

N24522SVBA

24522 NEPTU

NE AVE

2011-02-0214:25

Back22

< 0.02258

1.4 J, b< 8.3

6.8< 5.4

< 7.5< 4.2

< 3.5< 5.5

< 0.00022< 0.11

< 3.4N

24522SVF24522 N

EPTUN

E AVE2011-02-02

14:57Front

210.055

< 112.3 J, b

< 9< 3.5

< 5.8< 8.1

< 4.5< 3.8

< 5.9< 0.00024

< 0.1211

N24522SVH

24522 NEPTU

NE AVE

2012-04-0509:57

House20

1.2< 20

1.6 J, b< 6.3

< 9.9< 4.1

< 5.7< 3.2

< 2.7< 4.2

< 0.00026< 0.13

< 10N

24522SVF24522 N

EPTUN

E AVE2012-04-05

09:59Front

210.042

201 J, b

< 6.3< 9.9

< 4.1< 5.7

< 3.2< 2.7

< 4.2< 0.00026

< 0.13< 10

N24522SVFD

24522 NEPTU

NE AVE

2012-04-0509:59

Front21

0.04< 20

0.97 J, b< 6.3

< 9.9< 4.1

< 5.7< 3.2

< 2.7< 4.2

< 0.00026< 0.13

< 10N

24522SVBA24522 N

EPTUN

E AVE2012-04-05

10:55Back

21< 0.027

< 201.1 J, b

< 6.4< 10

< 4.2< 5.8

< 3.2< 2.7

< 4.2< 0.00027

< 0.14< 11

N24522SVH

24522 NEPTU

NE AVE

2013-06-0609:52

House20

1.4< 30

< 2.7< 9.4

< 15< 6.1

< 8.4< 4.7

< 4< 6.2

< 0.00025< 0.12

< 16N

24522SVBA24522 N

EPTUN

E AVE2013-06-06

10:09Back

210.074

< 27< 2.5

< 8.6< 13

< 5.6< 7.7

< 4.3< 3.6

< 5.6< 0.00023

< 0.11< 14

N24522SVBAS

24522 NEPTU

NE AVE

2013-06-0610:09

Back21.7

< 0.16 U< 19 U

< 0.7 U< 19 U

< 19 U< 1.9 U

< 1.9 U< 1.9 U

< 1.9 U2

< 0.16 U< 19 U

N24522SVFS

24522 NEPTU

NE AVE

2013-06-0610:20

Front22

< 0.15 U< 19 U

< 0.69 U< 19 U

< 19 U< 1.9 U

< 1.9 U< 1.9 U

< 1.9 U2

< 0.15 U< 19 U

P24522SVG24522 PAN

AMA AVE

2010-06-0912:59

Garage

170.29

23< 2.5

< 9.33.8

< 6< 8.4

< 4.7< 4

< 6.1< 0.00025

< 0.12< 3.9

P24522SVB24522 PAN

AMA AVE

2010-06-0914:01

Back18

< 0.02452

< 2.49.4

10< 5.8

< 8< 4.5

< 3.8< 5.9

< 0.00024< 0.12

< 3.7P24522SVH

24522 PANAM

A AVE2010-06-17

12:25House

190.93

26< 2.4

< 9.16.1

< 5.9< 8.2

< 4.6< 3.9

< 6< 0.00024

< 0.12< 3.8

P24522SVHS24522 PAN

AMA AVE

2010-06-1712:25

House20.5

1.0818

< 1.4< 18

< 18< 1.8

< 1.8< 1.8

< 1.82.2

< 0.16< 18

P24522SVB24522 PAN

AMA AVE

2013-03-2215:11

Back20

0.49< 28

1.1 J, b< 8.9 PF

< 14< 5.8

< 8< 4.5

< 3.8< 5.9

< 0.00024< 0.12

< 15P24522SVBD

24522 PANAM

A AVE2013-03-22

15:11Back

200.51

320.94 J, b

< 9.1 PF< 14

< 5.9< 8.2

< 4.5< 3.8

< 6< 0.00024

< 0.12< 15

P24522SVH24522 PAN

AMA AVE

2013-03-2215:19

House19

164

0.8 J, b< 8.8 PF

16< 5.7

< 8< 4.4

< 3.8< 5.8

< 0.00024< 0.12

< 15P24522SVG

24522 PANAM

A AVE2013-03-22

15:54G

arage20

0.9138

< 0.55 PF< 8.4 PF

< 13< 5.4

< 7.5< 4.2

< 3.5< 5.5

< 0.00022< 0.11

< 14R24522SVH

24522 RAVENN

A AVE2010-11-01

13:28House

111.8

20< 1.3

< 8.6< 3.4

< 5.6< 7.8

< 4.3< 3.6

< 5.7< 0.00023

< 0.11< 3.6

R24522SVG24522 RAVEN

NA AVE

2010-11-0114:02

Garage

200.026

< 11< 1.4

< 9< 3.5

< 5.8< 8.1

< 4.5< 3.8

< 5.9< 0.00024

< 0.12< 3.7

R24522SVB24522 RAVEN

NA AVE

2010-11-0114:41

Back19

1< 11

< 1.3< 8.8

< 3.421

< 7.9< 4.4

< 3.7< 5.8

< 0.00023< 0.12

< 3.6R24522SVG

24522 RAVENN

A AVE2012-08-23

15:00G

arage20

0.92< 30

< 0.5< 9.5

< 15< 6.2

< 8.5< 4.7

< 4< 6.2

< 0.00025< 0.13

< 16R24522SVH

24522 RAVENN

A AVE2012-08-23

15:08House

134.6

420.71 J, b

< 9.1< 14

< 5.9< 8.2

< 4.6< 3.9

< 6< 0.00024

< 0.12< 15

R24522SVB24522 RAVEN

NA AVE

2012-08-2315:29

Back19

1.5< 31

1.3 J, b< 9.7

< 15< 6.3

< 8.8< 4.9

< 4.1< 6.4

< 0.00026< 0.13

< 16R24522SVH

24522 RAVENN

A AVE2013-05-21

09:54House

164.7

< 27< 2.5

< 8.7< 14

< 5.6< 7.8

< 4.3< 3.7

< 5.7< 0.00023

< 0.12< 14

R24522SVB24522 RAVEN

NA AVE

2013-05-2109:59

Back21

1.1220 j

< 2.6< 9.1

< 146.6

< 8.2< 4.6

< 3.9< 6

< 0.00024< 0.12

< 15R24522SVBD

24522 RAVENN

A AVE2013-05-21

09:59Back

211.1

38 j< 2.6

< 9< 14

6.6< 8.1

< 4.5< 3.8

< 5.9< 0.00024

< 0.12< 15

R24522SVG24522 RAVEN

NA AVE

2013-05-2110:33

Garage

210.67

76< 2.6

< 8.8< 14

< 5.7< 7.9

< 4.4< 3.7

< 5.8< 0.00023

< 0.12< 14

M24523SVH

24523 MARBELLA AVE

2010-11-1114:28

House32

0.473

1.5 J11

8.3< 5.9

190< 4.6

< 3.9< 6

< 0.00024< 0.12

< 3.8M

24523SVG24523 M

ARBELLA AVE2010-11-11

15:24G

arage21

0.19< 11

0.41 J< 8.5

< 3.3< 5.5

9.27.9

< 3.6< 5.6

< 0.00023< 0.11

< 3.5M

24523SVB24523 M

ARBELLA AVE2010-11-11

15:51Back

21< 0.025

240.37 J

< 9.3< 3.6

< 6< 8.3

< 4.6< 3.9

< 6.1< 0.00025

< 0.12< 3.8

M24523SVB

24523 MARBELLA AVE

2012-04-2414:30

Back< 19

8.5 J, b< 6

< 9.3< 3.8

9.6< 3

< 2.5< 3.9

< 9.8M

24523SVG24523 M

ARBELLA AVE2012-04-27

10:08G

arage20

0.78< 18

2.6 J, b< 5.7

< 9< 3.7

10< 2.9

< 2.4< 3.8

< 0.0002< 0.1

< 9.5M

24523SVGD

24523 MARBELLA AVE

2012-04-2710:08

Garage

200.75

221.9 J, b

< 5.7< 9

< 3.79.9

3.1< 2.4

< 3.8< 0.0002

< 0.1< 9.5

M24523SVH

24523 MARBELLA AVE

2012-04-2710:09

House20

0.26< 18

4.3 J, b< 5.6

< 8.8< 3.6

45< 2.8

< 2.4< 3.7

< 0.00015< 0.074

< 9.3M

24523SVB24523 M

ARBELLA AVE2012-04-27

10:46Back

210.2

< 181.6 J, b

< 5.7< 9

< 3.76.9

< 2.9< 2.4

< 3.8< 0.00019

< 0.096< 9.5

M24523SVH

24523 MARBELLA AVE

2013-08-2809:42

House21

0.19< 28

1.2 J, b< 8.8 PF

< 14< 5.7

14< 4.4

< 3.7< 5.8

< 0.00023< 0.12

< 14M

24523SVB24523 M

ARBELLA AVE2013-08-28

09:43Back

210.18

441.4 J, b

< 8.4 PF< 13

< 5.4< 7.5

< 4.2< 3.5

< 5.5< 0.00022

< 0.11< 14

Page 247: Table Proposed Cleanup Levels Groundwater · 10/21/2013  · Table 04 Summery of PrsllMnery Cost ES11motee for Soleening Feasibility Study Former Kest Property Carson, CA GeotFnlenGOneullanle

Table B-2Sub-Slab Soil Vapor Results

Former Kast Property

Carson, California

Residential Properties Sampled Through August 31, 2013

Page 15 of 235

Oxygen

Oxygen/Argon

Carbon Dioxide

AcetoneN

aphthaleneEthanol

2-Butanone (M

ethyl Ethyl Ketone)

ChloroformTetrachloro-

etheneToluene

BenzeneFreon 12

Methane

HeliumCarbon

DisulfideM

OL %

MO

L %M

OL %

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

MO

L %M

OL %

UG

/M3

100.00%100.00%

92.56%52.63%

49.98%18.72%

17.61%16.54%

8.00%7.84%

7.80%6.94%

6.17%5.34%

4.80%Sam

ple IDAddress

Sample D

ateSam

ple Time

Location

AnalyteU

nitsFrequency of D

etection

M24523SVG

24523 MARBELLA AVE

2013-08-2810:08

Garage

200.7

< 280.86 J, b

< 8.9 PF< 14

< 5.8< 8

< 4.5< 3.8

< 5.9< 0.00024

< 0.12< 15

N24523SVH

24523 NEPTU

NE AVE

2010-04-0714:40

House19

2.416

< 2.314 J

< 3.4< 5.6

< 7.8< 4.3

< 3.7< 5.7

< 0.00023< 0.12

< 3.6N

24523SVF24523 N

EPTUN

E AVE2010-04-07

15:41Front

200.3

46< 2.4

10 J20

< 5.9< 8.2

< 4.5< 3.8

< 6< 0.00024

< 0.12< 3.8

N24523SVB

24523 NEPTU

NE AVE

2010-04-0716:36

Back21

0.1211

< 2.4< 9.1

< 3.6< 5.9

< 8.2< 4.6

< 3.9< 6

< 0.00024< 0.12

< 3.8N

24523SVH24523 N

EPTUN

E AVE2012-10-04

09:56House

182.9

< 28< 0.59

< 9< 14

< 5.8< 8.1

< 4.5< 3.8

< 5.9< 0.00024

< 0.12< 15

N24523SVF

24523 NEPTU

NE AVE

2012-10-0410:37

Front17

4< 25

< 0.52< 8

< 12< 5.2

< 7.2< 4

< 3.4< 5.2

< 0.000210.11

< 13N

24523SVB24523 N

EPTUN

E AVE2012-10-04

10:50Back

210.2

271.7 J, b

< 8.7< 14

< 5.6< 7.8

< 4.3< 3.7

< 5.7< 0.00023

< 0.12< 14

N24523SVBS

24523 NEPTU

NE AVE

2012-10-0410:50

Back21.3

0.191< 20 U

< 0.85 U< 20 U

< 20 U< 2 U

< 2 U< 2 U

< 2 U2.3

< 0.16 U< 20 U

N24523SVH

24523 NEPTU

NE AVE

2013-02-2210:20

House18

2.2< 29

3.7 J, b< 9.1

< 14< 5.9

< 8.2< 4.6

< 3.9< 6

< 0.00024< 0.12

< 15N

24523SVHS24523 N

EPTUN

E AVE2013-02-22

10:20House

19.72.16

< 20 U< 0.85 U

< 20 U< 20 U

< 2 U< 2 U

< 2 U< 2 U

2.8< 0.16 U

< 20 UN

24523SVB24523 N

EPTUN

E AVE2013-02-22

10:36Back

200.069

281.8 J, b

< 8.8< 14

< 5.7< 7.9

< 4.4< 3.7

< 5.8< 0.00023

< 0.12< 14

N24523SVBS

24523 NEPTU

NE AVE

2013-02-2210:36

Back21.9

< 0.16 U< 20 U

< 0.83 U< 20 U

< 20 U< 2 U

< 2 U< 2 U

< 2 U3.3

< 0.16 U< 20 U

N24523SVF

24523 NEPTU

NE AVE

2013-02-2211:09

Front20

0.66< 28

1.5 J, b< 8.8

< 14< 5.7

< 7.9< 4.4

< 3.7< 5.8

< 0.00023< 0.12

< 14N

24523SVFD24523 N

EPTUN

E AVE2013-02-22

11:09Front

200.72

< 281.1 J, b

< 8.8< 14

< 5.7< 7.9

< 4.4< 3.7

< 5.8< 0.00023

< 0.12< 14

R24523SVF24523 RAVEN

NA AVE

2009-11-0810:58

Front21

0.03642

8.9 J,B, b< 8.1

6.3< 5.3

< 7.3< 4.1

< 3.4< 5.3

0.00052< 3.4

R24523SVFS24523 RAVEN

NA AVE

2009-11-0810:58

Front22

< 0.1122

1.2 J13 J

4.43.9

< 1.9< 1.9

0.8 J2.4

< 0.11< 1.9

R24523SVBa24523 RAVEN

NA AVE

2009-12-0316:11

Back17

3.130

2.6 J,B, b< 8

6.67.6

< 7.2< 4

26< 5.3

0.0018< 0.11

< 3.3R24523SVH

24523 RAVENN

A AVE2010-08-24

09:54House

190.83

442.2 J, b

1620

< 5.8< 8

< 4.5< 3.8

< 5.9< 0.00024

< 0.12< 3.7

R24523SVF24523 RAVEN

NA AVE

2010-08-2410:58

Front20

0.2443

< 1.3< 8.7

7.16.9

< 7.8< 4.4

< 3.7< 5.7

< 0.00023< 0.12

< 3.6R24523SVB

24523 RAVENN

A AVE2010-08-24

11:00Back

172.3

20< 1.4

< 94.9

680< 8.1

< 4.5< 3.8

< 5.9< 0.00024

< 0.12< 3.7

R24523SVH24523 RAVEN

NA AVE

2011-03-2509:23

House20

1.1< 11

2.5 J, b< 8.8

< 14< 5.7

< 7.9< 4.4

< 3.7< 5.8

< 0.00023< 0.12

< 14M

24526SVH24526 M

ARBELLA AVE2010-10-13

13:28House

200.35

28< 1.4

< 8.9< 3.5

< 5.8< 8

< 4.5< 3.8

< 5.9< 0.00024

< 0.12< 3.7

M24526SVG

24526 MARBELLA AVE

2010-10-1314:08

Garage

210.3

21< 1.2

< 7.63.6

< 4.9< 6.8

5.26.5

< 5< 0.0002

< 0.1< 3.1

M24526SVB

24526 MARBELLA AVE

2010-10-1314:51

Back21

0.2336

< 1.319

4.2< 5.7

< 7.9< 4.4

< 3.7< 5.8

< 0.00023< 0.12

< 3.6M

24526SVH24526 M

ARBELLA AVE2012-04-19

10:00House

210.23

< 192.7 J, b

< 6.1< 9.5

< 3.9< 5.5

< 3< 2.6

< 4< 0.00022

< 0.11< 10

M24526SVG

24526 MARBELLA AVE

2012-04-1910:36

Garage

210.26

< 181.7 J, b

< 5.8< 9.1

< 3.8< 5.2

< 2.9< 2.5

< 3.8< 0.00021

< 0.1< 9.6

M24526SVG

D24526 M

ARBELLA AVE2012-04-19

10:36G

arage21

0.26< 18

1.4 J, b< 5.8

< 9.1< 3.8

< 5.2< 2.9

< 2.5< 3.8

< 0.00021< 0.1

< 9.6M

24526SVB24526 M

ARBELLA AVE2012-04-19

10:41Back

210.23

< 202.5 J, b

< 6.3< 9.9

< 4.1< 5.7

< 3.2< 2.7

< 4.2< 0.00022

< 0.11< 10

N24528SVH

24528 NEPTU

NE AVE

2010-11-0309:42

House19

1.824

< 1.427

< 3.5< 5.8

< 8.1< 4.5

< 3.8< 5.9

< 0.00024< 0.12

< 3.7N

24528SVG24528 N

EPTUN

E AVE2010-11-03

10:25G

arage17

2.835

< 1.4< 8.9

4.5< 5.8

11< 4.5

< 3.8< 5.9

< 0.00024< 0.12

< 3.7N

24528SVB24528 N

EPTUN

E AVE2010-11-03

11:34Back

21< 0.023

23< 1.3

< 8.6< 3.4

< 5.6< 7.7

< 4.3< 3.6

< 5.6< 0.00023

< 0.11< 3.6

N24528SVH

24528 NEPTU

NE AVE

2012-03-0810:40

House21

1.5< 17

10 J, b< 5.5

< 8.6< 3.6

< 5< 2.8

< 2.3< 3.6

0.00016< 0.073

< 9.1N

24528SVG24528 N

EPTUN

E AVE2012-03-08

11:17G

arage19

2.9< 19

9.6 J, b< 6.1

< 9.5< 3.9

< 5.5< 3

< 2.6< 4

< 0.00016< 0.08

< 10N

24528SVGD

24528 NEPTU

NE AVE

2012-03-0811:17

Garage

193

< 197.5 J, b

< 6.1< 9.5

< 3.9< 5.5

< 3< 2.6

< 4< 0.00016

< 0.08< 10

N24528SVH

24528 NEPTU

NE AVE

2013-08-2010:26

House19

2.3< 27

1.3 J, b< 8.7

< 14< 5.6

< 7.8< 4.3

< 3.7< 5.7

< 0.00023< 0.12

< 14N

24528SVBA24528 N

EPTUN

E AVE2013-08-20

10:39Back

200.052

302.4 J, b

< 8.6< 14

6< 7.8

< 4.3< 3.6

< 5.7< 0.00023

< 0.11< 14

N24528SVBAS

24528 NEPTU

NE AVE

2013-08-2010:39

Back20.9

< 0.16 U25

< 0.7 U< 19 U

< 19 U4.7

< 1.9 U< 1.9 U

< 1.9 U2

< 0.16 U< 19 U

N24528SVG

24528 NEPTU

NE AVE

2013-08-2010:48

Garage

165

< 281.3 J, b

< 8.8< 14

< 5.7< 7.9

< 4.4< 3.7

< 5.8< 0.00023

< 0.12< 14

N24529SVH

24529 NEPTU

NE AVE

2010-11-1912:48

House19

1.1110

6 J, b< 9.3

3.857

< 8.4< 4.6

< 3.9< 6.1

0.00028< 0.12

< 3.8N

24529SVF24529 N

EPTUN

E AVE2010-11-19

13:22Front

20< 0.023

214.4 J, b

< 8.6< 3.4

< 5.6< 7.8

< 4.3< 3.6

< 5.7< 0.00023

< 0.11< 3.6

N24529SVH

24529 NEPTU

NE AVE

2011-03-0710:32

House21

0.3616

0.63 J, b12

< 1325

< 7.7< 4.3

< 3.6< 5.6

< 0.00023< 0.11

< 14N

24529SVF24529 N

EPTUN

E AVE2011-03-07

11:12Front

200.31

< 110.38 J, b

< 8.8< 14

< 5.7< 8

< 4.4< 3.8

< 5.8< 0.00024

< 0.12< 15

N24529SVF

24529 NEPTU

NE AVE

2012-03-0209:58

Front21

0.4637

5.2 J, b< 6.1

10< 3.9

< 5.5< 3

< 2.6< 4

< 0.00016< 0.08

< 10N

24529SVFD24529 N

EPTUN

E AVE2012-03-02

09:58Front

210.47

667.7 J, b

< 6.1< 9.5

4.382

< 3< 2.6

< 4< 0.00016

< 0.08< 10

N24529SVP

24529 NEPTU

NE AVE

2012-03-0210:19

Parking21

1.2< 20

2.7 J, b< 6.4

< 109.7

< 5.8< 3.2

< 2.7< 4.2

< 0.00015< 0.076

< 10N

24529SVH24529 N

EPTUN

E AVE2012-03-02

10:41House

210.6

443.2 J, b

1838

14< 6

< 3.3< 2.8

< 4.40.0002

< 0.08< 11

N24529SVH

24529 NEPTU

NE AVE

2013-08-2309:45

House19

1.542

3.3 J, b< 8.8

< 1413

< 7.9< 4.4

< 3.7< 5.8

< 0.00023< 0.12

< 14N

24529SVF24529 N

EPTUN

E AVE2013-08-23

09:53Front

191.2

< 301 J, b

< 9.5< 15

< 6.2< 8.5

< 4.7< 4

< 6.2< 0.00025

< 0.13< 16

N24529SVFS

24529 NEPTU

NE AVE

2013-08-2309:53

Front19.9

1.1523

< 0.78 U< 22 U

< 22 U< 2.2 U

< 2.2 U< 2.2 U

< 2.2 U< 2.2 U

< 0.17 U< 22 U

N24529SVP

24529 NEPTU

NE AVE

2013-08-2310:32

Parking19

2< 27

1 J, b< 8.5

< 137.2

< 7.7< 4.2

< 3.6< 5.6

< 0.00023< 0.11

< 14P24529SVB

24529 PANAM

A AVE2012-05-17

10:17Back

200.69

< 190.88 J, b

< 6.1< 9.5

< 3.9< 5.5

< 3< 2.6

< 4< 0.00016

< 0.08< 10

P24529SVBS24529 PAN

AMA AVE

2012-05-1710:17

Back20.7

0.752< 19 U

< 0.78 U< 19 U

< 19 U< 1.9 U

< 1.9 U< 1.9 U

< 1.9 U2.1

< 0.17 U< 19 U

Page 248: Table Proposed Cleanup Levels Groundwater · 10/21/2013  · Table 04 Summery of PrsllMnery Cost ES11motee for Soleening Feasibility Study Former Kest Property Carson, CA GeotFnlenGOneullanle

Table B-2Sub-Slab Soil Vapor Results

Former Kast Property

Carson, California

Residential Properties Sampled Through August 31, 2013

Page 16 of 235

Oxygen

Oxygen/Argon

Carbon Dioxide

AcetoneN

aphthaleneEthanol

2-Butanone (M

ethyl Ethyl Ketone)

ChloroformTetrachloro-

etheneToluene

BenzeneFreon 12

Methane

HeliumCarbon

DisulfideM

OL %

MO

L %M

OL %

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

MO

L %M

OL %

UG

/M3

100.00%100.00%

92.56%52.63%

49.98%18.72%

17.61%16.54%

8.00%7.84%

7.80%6.94%

6.17%5.34%

4.80%Sam

ple IDAddress

Sample D

ateSam

ple Time

Location

AnalyteU

nitsFrequency of D

etection

P24529SVF24529 PAN

AMA AVE

2012-05-1710:37

Front21

0.65< 20

0.77 J, b< 6.3

< 9.9< 4.1

< 5.7< 3.2

< 2.7< 4.2

< 0.00022< 0.11

< 10P24529SVFS

24529 PANAM

A AVE2012-05-17

10:37Front

210.742

< 20 U< 0.83 U

< 20 U< 20 U

< 2 U< 2 U

< 2 U< 2 U

2.2< 0.19 U

< 20 UP24529SVHA

24529 PANAM

A AVE2012-05-31

08:20House

200.34

< 191.5 J, b

< 6< 9.3

< 3.8< 5.4

< 3< 2.5

< 3.9< 0.00016

0.075< 9.8

R24529SVF24529 RAVEN

NA AVE

2011-08-1814:54

Front20

0.055< 11

2.5 J, b< 9.1

< 14< 5.9

< 8.2< 4.6

< 3.9< 6

< 0.00024< 0.12

< 15R24529SVFS

24529 RAVENN

A AVE2011-08-18

14:54Front

21.5< 0.157 U

19< 1 U

< 17 U< 17 U

< 1.7 U3.6

< 1.7 U< 1.7 U

2< 0.157 U

< 17 UR24529SVH

24529 RAVENN

A AVE2011-08-18

15:25House

192.5

< 110.65 J, b

< 8.9< 14

< 5.89.5

< 4.5< 3.8

< 5.9< 0.00024

< 0.12< 15

R24529SVHS24529 RAVEN

NA AVE

2011-08-1815:25

House19.7

2.8< 18 U

< 1 U< 18 U

< 18 U< 1.8 U

6.5< 1.8 U

< 1.8 U2.1

< 0.162 U< 18 U

R24529SVB24529 RAVEN

NA AVE

2011-08-1816:24

Back17

3.8< 11

1.8 J, b< 9.1

< 1417

< 8.2< 4.6

< 3.9< 6

0.014< 0.12

< 15R24529SVBS

24529 RAVENN

A AVE2011-08-18

16:24Back

18.24.29

< 18 U1.9

< 18 U< 18 U

122.9

< 1.8 U< 1.8 U

1.9< 0.162 U

< 18 UR24529SVH

24529 RAVENN

A AVE2013-08-02

14:48House

191.3

< 272.9 J, b

< 8.6< 13

< 5.6< 7.7

< 4.3< 3.6

< 5.6< 0.00023

< 0.11< 14

R24529SVB24529 RAVEN

NA AVE

2013-08-0214:54

Back17

4.550

4.2 J, b< 9.1

< 14< 5.9

< 8.2< 4.5

< 3.8< 6

< 0.00024< 0.12

< 15R24529SVF

24529 RAVENN

A AVE2013-08-02

15:18Front

201.2

420.98 J, b

< 8.7< 14

< 5.7< 7.9

< 4.4< 3.7

< 5.7< 0.00023

< 0.12< 14

M24532SVB

24532 MARBELLA AVE

2009-10-0910:05

Back21

0.1720

< 2.2< 8.6

< 3.4< 5.6

< 7.7< 4.3

12< 5.6

< 0.00023< 3.6

M24532SVBS

24532 MARBELLA AVE

2009-10-0910:05

Back21.9

0.20116 J

0.72 J11 J

2.71.8 J

< 2.31.9 J

1.2 J2.3

< 0.12< 2.3

M24532SVF

24532 MARBELLA AVE

2009-10-0911:40

Front20

0.8215

< 2.1< 8.4

< 3.36.5

< 7.6< 4.2

< 3.6< 5.5

< 0.000454.9

M24532SVFS

24532 MARBELLA AVE

2009-10-0911:40

Front20.7

0.86315 J

0.57 J3 J

3.75

3.5< 2

0.53 J2.3

< 0.120.79 J

M24532 SVH

24532 MARBELLA AVE

2011-09-2308:33

House19

0.1113

0.92 J, b< 9

< 14< 5.8

< 8.1< 4.5

< 3.8< 5.9

< 0.00024< 0.12

< 15M

24532 SVF24532 M

ARBELLA AVE2011-09-23

09:04Front

191.3

290.56 J, b

< 9< 14

< 5.8< 8.1

< 4.5< 3.8

< 5.9< 0.00024

< 0.12< 15

M24532 SVF D

24532 MARBELLA AVE

2011-09-2309:04

Front19

1.320

< 0.47< 9

< 14< 5.8

< 8.1< 4.5

< 3.8< 5.9

< 0.00024< 0.12

< 15M

24532 SVB24532 M

ARBELLA AVE2011-09-23

09:37Back

210.24

15< 0.46

< 8.8< 14

< 5.7< 7.9

< 4.4< 3.7

< 5.8< 0.00023

< 0.12< 14

M24532SVH

24532 MARBELLA AVE

2012-04-0515:17

House20

1.4< 19

0.92 J, b< 6

< 9.3< 3.8

< 5.4< 3

< 2.5< 3.9

< 0.00025< 0.12

< 9.8M

24532SVF24532 M

ARBELLA AVE2012-04-05

15:24Front

200.68

< 180.81 J, b

< 5.8< 9.1

< 3.8< 5.2

< 2.9< 2.5

< 3.8< 0.00027

< 0.14< 9.6

M24532SVB

24532 MARBELLA AVE

2012-04-0515:56

Back21

0.12< 18

0.77 J, b< 5.6

< 8.8< 3.6

< 5< 2.8

< 2.4< 3.7

< 0.00024< 0.12

< 9.3M

24532SVBD24532 M

ARBELLA AVE2012-04-05

15:56Back

210.12

< 180.78 J, b

16< 8.8

< 3.6< 5

< 2.8< 2.4

< 3.7< 0.00024

< 0.12< 9.3

M24532SVH

24532 MARBELLA AVE

2013-08-2313:48

House18

2.5< 27

0.98 J, b< 8.7

< 14< 5.6

< 7.8< 4.3

< 3.7< 5.7

< 0.00023< 0.12

< 14M

24532SVF24532 M

ARBELLA AVE2013-08-23

13:54Front

181.9

1601.2 J, b

< 9.7< 15

< 6.3< 8.7

< 4.8< 4.1

< 6.4< 0.00026

< 0.13< 16

M24532SVB

24532 MARBELLA AVE

2013-08-2314:18

Back20

0.4< 29

1.1 J, b< 9.1

< 14< 5.9

< 8.2< 4.6

< 3.9< 6

< 0.00024< 0.12

< 15N

24532SVG24532 N

EPTUN

E AVE2010-05-19

14:06G

arage21

< 0.02756

< 7.226

< 4< 6.7

< 9.2110

28< 6.8

< 0.00027< 0.14

< 4.2N

24532SVH24532 N

EPTUN

E AVE2010-05-19

14:56House

210.034

220< 6.2

13018

< 5.7< 7.9

647.7

< 5.8< 0.00023

< 0.12< 3.6

N24532SVB2

24532 NEPTU

NE AVE

2010-09-0313:33

Back21

< 0.02325

< 1.432

< 3.4< 5.6

< 7.8< 4.3

< 3.6< 5.7

< 0.00023< 0.11

< 3.6N

24532SVB2D24532 N

EPTUN

E AVE2010-09-03

13:33Back

21< 0.023

23< 1.4

< 8.6< 3.4

< 5.6< 7.8

< 4.3< 3.6

< 5.7< 0.00023

< 0.11< 3.6

N24532SVB2

24532 NEPTU

NE AVE

2013-03-0115:21

Back21

0.056< 28

4.6 J, b< 8.9

< 14< 5.8

< 8< 4.4

< 3.8< 5.8

< 0.00024< 0.12

< 15N

24532SVB2D24532 N

EPTUN

E AVE2013-03-01

15:21Back

210.052

< 282.9 J, b

< 8.9< 14

< 5.8< 8

< 4.4< 3.8

< 5.8< 0.00024

< 0.12< 15

N24532SVG

24532 NEPTU

NE AVE

2013-03-0115:59

Garage

210.066

< 293.7 J, b

< 9.2< 14

< 6< 8.3

< 4.6< 3.9

< 6< 0.00024

< 0.12< 15

N24532SVHB

24532 NEPTU

NE AVE

2013-06-1910:01

House21

< 0.02479

4.1 J, b29

< 14< 5.7

< 8< 4.4

< 3.8< 5.8

< 0.000240.17

< 15N

24532SVB224532 N

EPTUN

E AVE2013-06-19

10:05Back

0.075< 27

< 0.77< 8.6

< 14< 5.6

< 7.8< 4.3

< 3.6< 5.7

< 0.0003< 0.15

< 14N

24532SVB2D24532 N

EPTUN

E AVE2013-06-19

10:05Back

220.068

< 28< 0.8

< 8.9< 14

< 5.8< 8

< 4.4< 3.8

< 5.8< 0.00032

< 0.16< 15

N24532SVG

24532 NEPTU

NE AVE

2013-06-1910:33

Garage

210.095

< 28< 0.8

< 8.9< 14

< 5.8< 8

< 4.4< 3.8

< 5.8< 0.00024

< 0.12< 15

P24532SVG24532 PAN

AMA AVE

2012-05-1009:54

Garage

190.11

< 190.76 J

< 6.2< 9.7

< 4< 5.6

< 3.1< 2.6

< 4< 0.00016

< 0.082< 10

P24532SVGS

24532 PANAM

A AVE2012-05-10

09:54G

arage19.8

0.11 K21

< 0.78 U< 19 U

< 19 U< 1.9 U

< 1.9 U< 1.9 U

< 1.9 U2.2

< 0.17 U< 19 U

P24532SVH24532 PAN

AMA AVE

2012-05-1009:54

House20

0.52< 19

< 0.31 PF< 6

< 9.3< 3.8

< 5.4< 3

< 2.5< 3.9

< 0.000160.2

< 9.8P24532SVB

24532 PANAM

A AVE2012-05-10

10:23Back

200.17

< 18< 0.29 PF

< 5.6< 8.8

46< 5

< 2.8< 2.4

< 3.7< 0.00015

< 0.074< 9.3

P24532SVBS24532 PAN

AMA AVE

2012-05-1010:23

Back20.7

0.193< 17 U

< 0.73 U< 17 U

< 17 U45

< 1.7 U< 1.7 U

< 1.7 U2.2

< 0.16 U< 17 U

P24532SVB24532 PAN

AMA AVE

2013-08-2114:40

Back18

1.9< 28

5.7 J, b< 9

< 1461

< 8.1< 4.5

< 3.8< 5.9

< 0.00024< 0.12

< 15P24532SVG

24532 PANAM

A AVE2013-08-21

15:11G

arage18

3.1< 28

2.3 J, b< 8.8

< 14< 5.7

< 7.9< 4.4

< 3.7< 5.8

< 0.00023< 0.12

< 14P24532SVH

24532 PANAM

A AVE2013-08-21

15:51House

190.86

581.6 J, b

11< 14

< 5.8< 8

< 4.4< 3.8

< 5.8< 0.00024

0.14< 15

R24532SVB24532 RAVEN

NA AVE

2010-08-1813:25

Back20

< 0.02366

< 1.311

7.3< 5.7

< 7.9< 4.4

< 3.7< 5.8

< 0.00023< 0.12

4.3R24532SVF

24532 RAVENN

A AVE2010-08-18

13:58Front

190.59

< 12< 1.4

< 9.4< 3.7

< 6.1< 8.5

< 4.7< 4

< 6.2< 0.00025

< 0.12< 3.9

R24532SVB24532 RAVEN

NA AVE

2011-05-1114:05

Back21

0.2< 11

1.4 J, b< 8.9

< 14< 5.8

< 8< 4.5

< 3.8< 5.9

< 0.00024< 0.12

< 15R24532SVF

24532 RAVENN

A AVE2011-05-11

15:02Front

210.53

< 132.6 J, b

< 10< 16

< 6.7< 9.4

< 5.2< 4.4

8.4< 0.00028

< 0.14< 17

R24532SVFD24532 RAVEN

NA AVE

2011-05-1115:02

Front21

0.52< 13

< 0.39 uj< 10

< 16< 6.7

< 9.2< 5.1

< 4.49.8

< 0.00027< 0.14

< 17R24532SVH

24532 RAVENN

A AVE2011-05-11

15:48House

210.14

510.41 J, b

20< 14

< 5.6< 7.8

< 4.4< 3.7

< 5.7< 0.00023

0.14< 14

Page 249: Table Proposed Cleanup Levels Groundwater · 10/21/2013  · Table 04 Summery of PrsllMnery Cost ES11motee for Soleening Feasibility Study Former Kest Property Carson, CA GeotFnlenGOneullanle

Table B-2Sub-Slab Soil Vapor Results

Former Kast Property

Carson, California

Residential Properties Sampled Through August 31, 2013

Page 17 of 235

Oxygen

Oxygen/Argon

Carbon Dioxide

AcetoneN

aphthaleneEthanol

2-Butanone (M

ethyl Ethyl Ketone)

ChloroformTetrachloro-

etheneToluene

BenzeneFreon 12

Methane

HeliumCarbon

DisulfideM

OL %

MO

L %M

OL %

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

MO

L %M

OL %

UG

/M3

100.00%100.00%

92.56%52.63%

49.98%18.72%

17.61%16.54%

8.00%7.84%

7.80%6.94%

6.17%5.34%

4.80%Sam

ple IDAddress

Sample D

ateSam

ple Time

Location

AnalyteU

nitsFrequency of D

etection

R24532SVHD24532 RAVEN

NA AVE

2011-05-1115:48

House21

0.1452

0.94 J, b21

< 14< 5.6

< 7.8< 4.4

< 3.7< 5.7

< 0.000230.16

< 14R24532SVB

24532 RAVENN

A AVE2012-11-16

14:54Back

200.55

< 281.8 J, b

< 8.8< 14

< 5.7< 7.9

< 4.4< 3.7

< 5.8< 0.00023

< 0.12< 14

R24532SVF24532 RAVEN

NA AVE

2012-11-1615:37

Front20

0.81< 29

0.95 J, b< 9.1

< 14< 5.9

< 8.2< 4.6

< 3.9< 6

< 0.00024< 0.12

< 15R24532SVB

24532 RAVENN

A AVE2013-07-31

14:41Back

210.47

< 300.98 J, b

< 9.4< 15

< 6.1< 8.4

< 4.7< 4

< 6.2< 0.00025

< 0.12< 16

R24532SVF24532 RAVEN

NA AVE

2013-07-3115:31

Front20

0.7940

0.86 J, b< 8.7

< 14< 5.6

< 7.8< 4.4

< 3.7< 5.7

< 0.00023< 0.12

< 14R24532SVH

24532 RAVENN

A AVE2013-07-31

15:48House

200.44

< 27< 0.78

< 8.7< 14

< 5.6< 7.8

< 4.3< 3.7

< 5.7< 0.00023

0.2< 14

N24533SVH

24533 NEPTU

NE AVE

2010-07-1213:52

House19

0.08376

< 2.3 Q, uj

< 8.818

< 5.7< 7.9

< 4.4< 3.7

< 5.8< 0.00023

< 0.12< 3.6

N24533SVF

24533 NEPTU

NE AVE

2010-07-1214:26

Front19

0.522

< 2.4 Q, uj

< 9< 3.5

89< 8.1

< 4.5< 3.8

< 5.9< 0.00024

< 0.12< 3.7

N24533SVB

24533 NEPTU

NE AVE

2010-07-1215:01

Back20

0.61< 11

< 2.3 Q, uj

< 8.7< 3.4

20< 7.8

< 4.3< 3.7

< 5.7< 0.00023

< 0.12< 3.6

N24533SVB

24533 NEPTU

NE AVE

2013-03-0709:58

Back21

0.52< 28

1.2 J, b< 9

< 14< 5.8

< 8.1< 4.5

< 3.8< 5.9

< 0.00024< 0.12

< 15N

24533SVBS24533 N

EPTUN

E AVE2013-03-07

09:58Back

210.497

< 20 U< 0.82 U

< 20 U< 20 U

2.9< 2 U

< 2 U< 2 U

2.1< 0.16 U

< 20 UN

24533SVH24533 N

EPTUN

E AVE2013-03-07

10:00House

201.3

< 280.79 J, b

< 8.8< 14

< 5.7< 7.9

< 4.4< 3.7

< 5.8< 0.00023

< 0.12< 14

N24533SVF

24533 NEPTU

NE AVE

2013-03-0710:33

Front18

1.2< 28

1.4 J, b< 8.7

< 1412

< 7.9< 4.4

< 3.7< 5.7

< 0.00023< 0.12

< 14N

24533SVFS24533 N

EPTUN

E AVE2013-03-07

10:33Front

18.71.17

< 20 U< 0.83 U

< 20 U< 20 U

14< 2 U

< 2 U< 2 U

2.6< 0.16 U

< 20 UN

24533SVB24533 N

EPTUN

E AVE2013-07-03

09:44Back

210.49

40< 0.79

< 8.8< 14

30< 7.9

< 4.4< 3.7

< 5.8< 0.00023

< 0.12< 14

N24533SVBD

24533 NEPTU

NE AVE

2013-07-0309:44

Back21

0.5< 28

< 0.8< 9

< 1431

< 8.1< 4.5

< 3.8< 5.9

< 0.00024< 0.12

< 15N

24533SVH24533 N

EPTUN

E AVE2013-07-03

10:00House

191.7

< 29< 0.81

< 9.1< 14

< 5.9< 8.2

< 4.5< 3.8

< 6< 0.00024

< 0.12< 15

N24533SVF

24533 NEPTU

NE AVE

2013-07-0310:10

Front20

1.6< 28

0.8 J, b< 8.8

< 1423

< 7.9< 4.4

< 3.7< 5.8

< 0.00023< 0.12

< 14P24533SVH

24533 PANAM

A AVE2011-03-18

13:41House

191.3

< 111.7 J, b

< 8.8< 14

< 5.7< 8

< 4.4< 3.8

< 5.8< 0.00024

< 0.12< 15

P24533SVBA24533 PAN

AMA AVE

2011-03-1814:10

Back21

0.05232

< 0.34< 8.8

< 14< 5.7

< 7.9< 4.4

< 3.7< 5.8

< 0.00023< 0.12

< 14P24533SVFA

24533 PANAM

A AVE2011-03-18

14:44Front

210.072

13< 0.33

< 8.7< 14

< 5.6< 7.8

< 4.3< 3.7

< 5.7< 0.00023

< 0.12< 14

P24533SVFAD24533 PAN

AMA AVE

2011-03-1814:44

Front21

0.07218

< 0.33< 8.7

< 14< 5.6

< 7.8< 4.4

< 3.7< 5.7

< 0.00023< 0.12

< 14P24533SVFA

24533 PANAM

A AVE2012-09-20

10:33Front

201.1

< 292.9 J, b

< 9.1< 14

< 5.9< 8.2

< 4.6< 3.9

< 6< 0.00024

< 0.12< 15

P24533SVFAS24533 PAN

AMA AVE

2012-09-2010:33

Front20.6

1.13< 20 U

< 0.83 U< 20 U

< 20 U< 2 U

< 2 U< 2 U

< 2 U< 2 U

< 0.16 U< 20 U

P24533SVH24533 PAN

AMA AVE

2012-09-2010:44

House17

2.630

2 J, b< 9.3

< 14< 6

< 8.4< 4.6

< 3.9< 6.1

< 0.00025< 0.12

< 15P24533SVBA

24533 PANAM

A AVE2012-09-20

11:28Back

210.096

< 301.2 J, b

< 9.5< 15

< 6.2< 8.5

< 4.7< 4

< 6.2< 0.00025

< 0.13< 16

P24533SVBA24533 PAN

AMA AVE

2013-07-2414:42

Back21

0.07733

1.4 J, b< 9.5

< 15< 6.2

< 8.5< 4.7

< 4< 6.2

< 0.00025< 0.13

< 16P24533SVH

24533 PANAM

A AVE2013-07-24

14:47House

182.9

6101.2 J, b

< 9< 14

< 5.8< 8.1

< 4.5< 3.8

< 5.9< 0.00024

< 0.12< 15

P24533SVFA24533 PAN

AMA AVE

2013-07-2415:05

Front20

0.86100

0.92 J, b< 8.8

< 14< 5.7

< 7.9< 4.4

< 3.7< 5.8

< 0.00023< 0.12

< 14R24533SVG

24533 RAVENN

A AVE2010-09-07

09:26G

arage20

< 0.02714

< 1.6< 10

< 4< 6.6

< 9.1< 5.1

< 4.317

< 0.000270.15

< 4.2R24533SVH

24533 RAVENN

A AVE2010-09-07

10:05House

200.15

20< 1.5

< 9.3< 3.6

< 6< 8.4

< 4.6< 3.9

74< 0.00025

< 0.12< 3.8

R24533SVB24533 RAVEN

NA AVE

2010-09-0711:04

Back20

< 0.02426

< 6.4< 9.1

< 3.6< 5.9

< 8.2< 4.6

< 3.97

< 0.00024< 0.12

< 3.8R 24 533 SVH

24533 RAVENN

A AVE2012-09-27

10:16House

210.2

< 28< 0.59

< 9< 14

< 5.8< 8.1

< 4.5< 3.8

< 5.9< 0.00024

< 0.12< 15

R 24 533 SVG24533 RAVEN

NA AVE

2012-09-2710:18

Garage

170.34

290.63 J, b

< 8.1< 13

< 5.3< 7.3

< 4.1< 3.4

16< 0.00022

< 0.11< 13

R 24 533 SVB24533 RAVEN

NA AVE

2012-09-2711:05

Back20

0.29< 28

< 0.58< 8.9

< 14< 5.8

< 8< 4.5

< 3.8< 5.9

< 0.00048< 0.24

< 15R24533SVHA

24533 RAVENN

A AVE2013-08-27

09:49House

210.19

948.2 J, b

15 PF< 14

< 5.7< 7.9

< 4.4< 3.7

< 5.8< 0.00023

< 0.12< 14

R24533SVB24533 RAVEN

NA AVE

2013-08-2709:55

Back20

0.4530

1.4 J, b< 8.4 PF

< 13< 5.5

< 7.6< 4.2

< 3.6< 5.5

< 0.00022< 0.11

< 14R24533SVBS

24533 RAVENN

A AVE2013-08-27

09:55Back

21.40.484

51< 0.69 U

< 19 U< 19 U

< 1.9 U< 1.9 U

< 1.9 U< 1.9 U

2.2< 0.15 U

< 19 UR24533SVG

24533 RAVENN

A AVE2013-08-27

10:20G

arage20

0.45< 29

1.7 J, b< 9.3 PF

< 14< 6

< 8.3< 4.6

< 3.9< 6.1

< 0.00025< 0.12

< 15M

24602SVF24602 M

ARBELLA AVE2010-11-04

13:10Front

210.76

15< 1.3

< 8.7< 3.4

< 5.6< 7.8

< 4.3< 3.7

< 5.7< 0.00023

< 0.12< 3.6

M24602SVB

24602 MARBELLA AVE

2010-11-0413:54

Back20

0.3130

< 1.4< 9.5

4.114

< 8.5< 4.7

< 4< 6.2

< 0.00025< 0.13

< 3.9M

24602SVH24602 M

ARBELLA AVE2012-06-01

09:55House

210.072

< 181.5 J, b

< 5.7< 9

< 3.7< 5.2

32< 2.4

< 3.8< 0.00015

< 0.076< 9.5

M24602SVF

24602 MARBELLA AVE

2012-06-0110:05

Front20

0.79< 18

1 J, b< 5.8

< 9.1< 3.8

< 5.2< 2.9

3.4< 3.8

< 0.00016< 0.078

< 9.6M

24602SVFS24602 M

ARBELLA AVE2012-06-01

10:05Front

20.50.796

21< 0.7 U

< 17 U< 17 U

2.8< 1.7 U

< 1.7 U3.6

2.2< 0.15 U

< 17 UM

24602SVB24602 M

ARBELLA AVE2012-06-01

10:29Back

210.25

< 190.75 J, b

< 6.1< 9.6

< 4< 5.5

< 3< 2.6

< 40.00016

< 0.081< 10

M24602SVBS

24602 MARBELLA AVE

2012-06-0110:29

Back21.4

0.274< 18 U

< 0.74 U< 18 U

< 18 U2.6

< 1.8 U< 1.8 U

< 1.8 U2.1

< 0.16 U< 18 U

M24602SVB

24602 MARBELLA AVE

2013-08-2714:57

Back20

166

0.56 J, b< 9.2 PF

< 148.4

< 8.2< 4.6

< 3.9< 6

< 0.00024< 0.12

< 15M

24602SVH24602 M

ARBELLA AVE2013-08-27

15:00House

200.81

< 280.53 J, b

< 9 PF< 14

< 5.8< 8.1

< 4.5< 3.8

< 5.9< 0.00024

< 0.12< 15

M24602SVF

24602 MARBELLA AVE

2013-08-2715:24

Front20

0.6635

1.1 J, b< 9.5 PF

< 15< 6.2

< 8.5< 4.7

< 4< 6.2

< 0.00023< 0.12

< 16N

24602SVH24602 N

EPTUN

E AVE2010-07-27

09:30House

200.22

31 b< 6

< 8.64.4 b

< 5.6< 7.8

< 4.3< 3.6

< 5.7< 0.00023

< 0.11< 3.6

N24602SVB

24602 NEPTU

NE AVE

2010-07-2710:10

Back20

< 0.02364 b

< 6.2< 8.8

9.5 b< 5.7

< 7.9< 4.4

9.2< 5.8

< 0.00023< 0.12

< 3.6N

24602SVF24602 N

EPTUN

E AVE2010-07-27

11:00Front

20< 0.023

59 b< 6.2

< 8.85.3 b

< 5.7< 7.9

< 4.48.4

< 5.8< 0.00023

< 0.12< 3.6

Page 250: Table Proposed Cleanup Levels Groundwater · 10/21/2013  · Table 04 Summery of PrsllMnery Cost ES11motee for Soleening Feasibility Study Former Kest Property Carson, CA GeotFnlenGOneullanle

Table B-2Sub-Slab Soil Vapor Results

Former Kast Property

Carson, California

Residential Properties Sampled Through August 31, 2013

Page 18 of 235

Oxygen

Oxygen/Argon

Carbon Dioxide

AcetoneN

aphthaleneEthanol

2-Butanone (M

ethyl Ethyl Ketone)

ChloroformTetrachloro-

etheneToluene

BenzeneFreon 12

Methane

HeliumCarbon

DisulfideM

OL %

MO

L %M

OL %

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

MO

L %M

OL %

UG

/M3

100.00%100.00%

92.56%52.63%

49.98%18.72%

17.61%16.54%

8.00%7.84%

7.80%6.94%

6.17%5.34%

4.80%Sam

ple IDAddress

Sample D

ateSam

ple Time

Location

AnalyteU

nitsFrequency of D

etection

N24602SVB

24602 NEPTU

NE AVE

2011-03-0415:08

Back21

0.1729

0.95 J, b< 8.6

< 13< 5.6

< 7.7< 4.3

< 3.6< 5.6

< 0.00023< 0.11

< 14N

24602SVF24602 N

EPTUN

E AVE2011-03-04

15:22Front

21< 0.024

201.6 J, b

10< 14

< 5.7< 8

< 4.4< 3.8

< 5.8< 0.00024

< 0.12< 15

N24602SVFD

24602 NEPTU

NE AVE

2011-03-0415:22

Front21

< 0.02314

0.74 J, b< 8.8

< 14< 5.7

< 7.9< 4.4

< 3.7< 5.8

< 0.00023< 0.12

< 14N

24602SVH24602 N

EPTUN

E AVE2011-03-04

15:56House

210.19

130.79 J, b

< 8.6< 13

< 5.6< 7.7

< 4.3< 3.6

< 5.6< 0.00023

< 0.11< 14

N24602SVB

24602 NEPTU

NE AVE

2012-06-2909:59

Back23

0.21< 20

< 3.1< 6.3

< 9.9< 4.1

< 5.7< 3.2

< 2.7< 4.2

< 0.00022< 0.11

< 10N

24602SVBS24602 N

EPTUN

E AVE2012-06-29

09:59Back

21.40.221

< 18 U< 0.75 U

< 18 U< 18 U

< 1.8 U< 1.8 U

< 1.8 U< 1.8 U

2.3< 0.17 U

< 18 UN

24602SVH24602 N

EPTUN

E AVE2012-06-29

10:05House

210.26

< 18< 2.9

< 5.8< 9.1

< 3.8< 5.2

< 2.9< 2.5

< 3.8< 0.0002

< 0.1< 9.6

N24602SVF

24602 NEPTU

NE AVE

2012-06-2910:34

Front22

0.042< 20

< 3.1< 6.3

< 9.9< 4.1

< 5.7< 3.2

< 2.7< 4.2

< 0.00022< 0.11

< 10N

24602SVFS24602 N

EPTUN

E AVE2012-06-29

10:34Front

21.5< 0.16 U

18< 0.73 U

< 17 U< 17 U

< 1.7 U< 1.7 U

< 1.7 U< 1.7 U

2.1< 0.16 U

< 17 UR24602SVB

24602 RAVENN

A AVE2012-10-05

09:57Back

210.28

411.8 J, b

13< 14

< 5.8< 8.1

< 4.5< 3.8

< 5.9< 0.00024

< 0.12< 15

R24602SVF24602 RAVEN

NA AVE

2012-10-0509:57

Front20

0.68< 31

5 J, b< 9.9

< 16< 6.4

< 9< 5

< 4.2< 6.5

< 0.00026< 0.13

< 16R24602SVFS

24602 RAVENN

A AVE2012-10-05

09:57Front

20.90.689

< 26 U< 1.1 U

< 26 U< 26 U

< 2.6 U< 2.6 U

< 2.6 U< 2.6 U

< 2.6 U< 0.21 U

< 26 UR24602SVH

24602 RAVENN

A AVE2012-10-05

10:57House

201.1

< 291 J, b

< 9.3< 14

< 614

< 4.6< 3.9

< 6.1< 0.00025

< 0.12< 15

R24602SVB24602 RAVEN

NA AVE

2013-04-1010:04

Back21

0.41< 29

0.72 J, b< 9.3

< 14< 6

< 8.4< 4.6

< 3.9< 6.1

< 0.00025< 0.12

< 15R24602SVH

24602 RAVENN

A AVE2013-04-10

10:09House

210.92

< 280.69 J, b

< 9< 14

< 5.8< 8.1

< 4.5< 3.8

< 5.9< 0.00024

< 0.12< 15

R24602SVF24602 RAVEN

NA AVE

2013-04-1010:35

Front21

0.45< 27

0.67 J, b< 8.4

< 13< 5.5

< 7.6< 4.2

< 3.6< 5.5

< 0.00022< 0.11

< 14M

24603SVB24603 M

ARBELLA AVE2009-09-24

11:29Back

200.43

27013 J

< 3064

65< 27

7004500

< 20< 0.00024

< 12M

24603SVF24603 M

ARBELLA AVE2009-09-24

12:22Front

210.2

13< 2.9

< 8.8< 3.4

< 5.7< 7.9

< 4.4< 3.7

< 5.8< 0.00023

< 3.6M

24603SVH24603 M

ARBELLA AVE2010-01-15

11:00House

200.61

< 11< 2.2

< 8.4< 3.3

< 5.511

< 4.2< 3.6

< 5.5< 0.00022

0.17< 3.5

M24603SVF

24603 MARBELLA AVE

2010-01-1511:56

Front21

0.2< 10

< 2.1< 8

< 3.111

< 7.2< 4

< 3.4< 5.3

< 0.00021< 0.11

< 3.3M

24603SVB24603 M

ARBELLA AVE2010-01-15

12:34Back

190.92

30< 2.4

9.713

24< 8.1

< 4.5< 3.8

< 5.9< 0.00024

< 0.12< 3.7

M24603SVH

24603 MARBELLA AVE

2010-10-1513:37

House20

0.838

1.8 J, b25

< 3.4< 5.6

14< 4.3

< 3.7< 5.7

< 0.00023< 0.12

< 3.6M

24603SVHS24603 M

ARBELLA AVE2010-10-15

13:37House

20.80.888

23< 1.4

< 18< 18

< 1.813

< 1.8< 1.8

2< 0.16

< 18M

24603SVF24603 M

ARBELLA AVE2010-10-15

13:45Front

200.93

36< 1.3

< 8.8< 3.4

9.6< 7.9

< 4.4< 3.7

< 5.8< 0.00023

< 0.12< 3.6

M24603SVB

24603 MARBELLA AVE

2010-10-1514:17

Back19

0.9518

< 1.4< 9.3

< 3.6140

< 8.4< 4.7

< 4< 6.1

< 0.00025< 0.12

< 3.9N

24603SVH24603 N

EPTUN

E AVE2010-11-04

09:20House

155.4

14< 1.2

< 7.9< 3.1

< 5.1< 7.1

5.6< 3.4

< 5.20.00024

< 0.1< 3.3

N24603SVG

24603 NEPTU

NE AVE

2010-11-0409:59

Garage

191.7

< 11< 1.3

< 8.7< 3.4

< 5.6< 7.8

6.1< 3.7

< 5.7< 0.00023

< 0.12< 3.6

N24603SVB

24603 NEPTU

NE AVE

2010-11-0410:35

Back17

4.4< 11

< 1.3< 8.8

< 3.5< 5.7

< 8< 4.4

< 3.8< 5.8

< 0.00024< 0.12

< 3.6N

24603SVBD24603 N

EPTUN

E AVE2010-11-04

10:35Back

174.5

< 11< 1.3

< 8.8< 3.5

< 5.7< 8

< 4.4< 3.8

< 5.8< 0.00024

< 0.12< 3.6

N24603SVB

24603 NEPTU

NE AVE

2013-03-0714:51

Back18

1.4< 28

1.4 J, b< 8.7

< 14< 5.7

< 7.9< 4.4

< 3.7< 5.7

< 0.00023< 0.12

< 14N

24603SVBD24603 N

EPTUN

E AVE2013-03-07

14:51Back

191.4

< 281.5 J, b

< 8.7< 14

< 5.7< 7.9

< 4.4< 3.7

< 5.7< 0.00023

< 0.12< 14

N24603SVH

24603 NEPTU

NE AVE

2013-03-0714:54

House< 28

2.2 J, b< 8.9

< 14< 5.8

< 8< 4.4

< 3.8< 5.8

< 15N

24603SVG24603 N

EPTUN

E AVE2013-03-07

15:25G

arage19

1.629

0.99 J, b< 8.8

< 14< 5.7

< 7.9< 4.4

< 3.7< 5.8

< 0.00023< 0.12

< 14N

24603SVH24603 N

EPTUN

E AVE2013-07-18

15:02House

155.9

< 251.1 J, b

< 8< 12

< 5.2< 7.2

< 4< 3.4

< 5.2< 0.00021

< 0.11< 13

N24603SVB

24603 NEPTU

NE AVE

2013-07-1815:13

Back20

0.9265

< 0.82< 9.2

< 14< 6

< 8.3< 4.6

< 3.9< 6

< 0.00024< 0.12

< 15N

24603SVG24603 N

EPTUN

E AVE2013-07-18

15:26G

arage17

3.4360

< 0.79< 8.8

< 14< 5.7

< 8< 4.4

< 3.8< 5.8

< 0.00024< 0.12

< 15P24603SVH

24603 PANAM

A AVE2011-02-10

08:56House

20< 0.023

643.9 J, b

< 8.66.5

< 5.6< 7.8

< 4.3< 3.6

< 5.7< 0.00023

< 0.114.8

P24603SVF24603 PAN

AMA AVE

2011-02-1009:30

Front16

3.812

2.3 J, b< 8.4

< 3.36.9

< 7.6< 4.2

< 3.6< 5.5

< 0.00022< 0.11

< 3.5P24603SVG

24603 PANAM

A AVE2011-02-10

10:09G

arage21

< 0.02314

1.1 J, b< 8.6

< 3.4< 5.6

< 7.8< 4.3

< 3.6< 5.7

< 0.00023< 0.11

< 3.6P24603SVG

S24603 PAN

AMA AVE

2011-02-1010:09

Garage

21.7< 0.17

18< 1.4

< 18< 18

< 1.8< 1.8

< 1.8< 1.8

2.4< 0.17

< 18P24603SVH

24603 PANAM

A AVE2012-10-19

09:43House

180.64

36< 0.59 PF

< 9< 14

< 5.8< 8.1

< 4.5< 3.8

< 5.9< 0.00024

< 0.12< 15

P24603SVF24603 PAN

AMA AVE

2012-10-1910:08

Front16

4.9< 29

< 0.61 PF< 9.3

< 1417

< 8.4< 4.6

< 3.9< 6.1

< 0.00025< 0.12

< 15P24603SVFD

24603 PANAM

A AVE2012-10-19

10:08Front

164.8

< 29< 0.6 PF

< 9.1< 14

17< 8.2

6.8< 3.9

< 6< 0.00024

< 0.12< 15

P24603SVG24603 PAN

AMA AVE

2012-10-1910:16

Garage

191.5

< 28< 0.59 PF

< 9< 14

< 5.8< 8.1

< 4.5< 3.8

< 5.9< 0.00024

< 0.12< 15

R24603SVB24603 RAVEN

NA AVE

2009-09-1910:49

Back20

211

< 2.8< 8.5

< 3.3< 5.5

< 7.7< 4.2

< 3.6< 5.6

< 0.00023< 3.5

R24603SVF24603 RAVEN

NA AVE

2009-09-1911:36

Front21

0.1436

< 3.3< 9.9

4.8< 6.4

< 9< 5

< 4.2< 6.5

< 0.00026< 4.1

R24603SVH24603 RAVEN

NA AVE

2011-02-2409:28

House21

0.13210

4.8 J, b12

40< 5.4

< 7.587

< 3.5< 5.5

< 0.000220.13

< 14R24603SVF

24603 RAVENN

A AVE2011-02-24

10:10Front

210.53

180.58 J, b

< 8.8< 14

< 5.7< 8

17< 3.8

< 5.8< 0.00024

< 0.12< 15

R24603SVB24603 RAVEN

NA AVE

2011-02-2411:07

Back20

1.6< 11

< 0.33< 8.7

< 14< 5.6

< 7.8< 4.3

< 3.7< 5.7

< 0.00023< 0.12

< 14R24603SVBS

24603 RAVENN

A AVE2011-02-24

11:07Back

20.61.63

< 15< 0.89

< 15< 15

< 1.5< 1.5

1.6< 1.5

2< 0.14

< 15R24603SVH

24603 RAVENN

A AVE2012-06-01

15:50House

210.24

200.81 J, b

< 6< 9.4

< 3.9< 5.4

< 3< 2.6

< 4< 0.00016

< 0.08< 10

R24603SVB24603 RAVEN

NA AVE

2012-06-0115:51

Back17

4.5< 19

0.55 J, b< 6.1

< 9.5< 3.9

< 5.5< 3

< 2.6< 4

< 0.00016< 0.08

< 10

Page 251: Table Proposed Cleanup Levels Groundwater · 10/21/2013  · Table 04 Summery of PrsllMnery Cost ES11motee for Soleening Feasibility Study Former Kest Property Carson, CA GeotFnlenGOneullanle

Table B-2Sub-Slab Soil Vapor Results

Former Kast Property

Carson, California

Residential Properties Sampled Through August 31, 2013

Page 19 of 235

Oxygen

Oxygen/Argon

Carbon Dioxide

AcetoneN

aphthaleneEthanol

2-Butanone (M

ethyl Ethyl Ketone)

ChloroformTetrachloro-

etheneToluene

BenzeneFreon 12

Methane

HeliumCarbon

DisulfideM

OL %

MO

L %M

OL %

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

MO

L %M

OL %

UG

/M3

100.00%100.00%

92.56%52.63%

49.98%18.72%

17.61%16.54%

8.00%7.84%

7.80%6.94%

6.17%5.34%

4.80%Sam

ple IDAddress

Sample D

ateSam

ple Time

Location

AnalyteU

nitsFrequency of D

etection

R24603SVBD24603 RAVEN

NA AVE

2012-06-0115:51

Back17

4.7< 19

0.53 J, b< 6.1

< 9.6< 4

< 5.5< 3.1

< 2.6< 4

< 0.00016< 0.082

< 10R24603SVF

24603 RAVENN

A AVE2012-06-01

16:24Front

201.4

280.94 J, b

< 5.9< 9.2

< 3.8< 5.3

4.3< 2.5

< 3.8< 0.00016

< 0.078< 9.7

R24603SVFD24603 RAVEN

NA AVE

2012-06-0116:24

Front20

1.4< 19

0.73 J, b< 5.9

< 9.2< 3.8

< 5.3< 3

< 2.5< 3.9

< 0.00016< 0.078

< 9.8M

24606SVB24606 M

ARBELLA AVE2010-04-20

14:37Back

200.19

265.2 J, b

< 8.8< 3.4

< 5.78.6

< 4.4< 3.7

< 5.8< 0.00023

< 0.12< 3.6

M24606SVF

24606 MARBELLA AVE

2010-04-2015:41

Front12

2.738

3.8 J, b< 8.8

6.6< 5.7

< 7.9< 4.4

< 3.7< 5.8

< 0.00023< 0.12

7M

24606SVH24606 M

ARBELLA AVE2010-04-20

16:40House

191.4

16< 2.3

< 8.74

< 5.6< 7.8

< 4.4< 3.7

< 5.7< 0.00023

0.54< 3.6

M24606SVF

24606 MARBELLA AVE

2012-01-1312:28

Front18

3.215

0.76 J, b12

< 9.1< 3.8

< 5.214

< 2.5< 3.8

< 0.00016< 0.078

< 9.6M

24606SVFS24606 M

ARBELLA AVE2012-01-13

12:28Front

18.13.36

< 17 U< 0.99 U

< 17 U< 17 U

< 1.7 U< 1.7 U

2.3< 1.7 U

2.5< 0.16 U

< 17 UM

24606SVH24606 M

ARBELLA AVE2012-01-13

13:17House

173.4

210.76 J, b

< 6.1< 9.5

< 3.9< 5.5

< 3< 2.6

< 40.00016

0.37< 10

M24606SVHS

24606 MARBELLA AVE

2012-01-1313:17

House18

3.56< 18 U

< 1 U< 18 U

< 18 U< 1.8 U

< 1.8 U< 1.8 U

< 1.8 U2.4

< 0.17 U< 18 U

M24606SVB

24606 MARBELLA AVE

2012-01-1313:54

Back20

127

0.38 J, b< 6

< 9.3< 3.8

< 5.4< 3

< 2.5< 3.9

< 0.00016< 0.079

< 9.8M

24606SVBS24606 M

ARBELLA AVE2012-01-13

13:54Back

20.11.09

< 18 U< 1 U

< 18 U< 18 U

< 1.8 U2.2

< 1.8 U< 1.8 U

2.5< 0.16 U

< 18 UN

24608SVF24608 N

EPTUN

E AVE2010-04-29

15:18Front

128.4

93< 6.1

19 b4.7

< 5.6< 7.8

< 4.412

< 5.7< 0.00023

< 0.12< 3.6

N24608SVB

24608 NEPTU

NE AVE

2010-04-2916:18

Back19

1.6190

< 6.2170 b

5.852

< 7.931

53< 5.8

< 0.00023< 0.12

6N

24608SVH24608 N

EPTUN

E AVE2010-07-09

13:17House

200.4

21< 2.3 Q

, uj< 8.8

8.6< 5.7

< 7.9< 4.4

< 3.7< 5.8

< 0.00023< 0.12

< 3.6N

24608SVH24608 N

EPTUN

E AVE2010-09-08

13:44House

200.58

161.7 J

< 8.8< 3.4

< 5.7< 7.9

< 4.4< 3.7

< 5.8< 0.00023

< 0.12< 3.6

N24608SVF

24608 NEPTU

NE AVE

2010-09-0814:15

Front8.4

1118

< 1.411

< 3.6< 6

< 8.3< 4.6

< 3.9< 6

< 0.00024< 0.12

< 3.8N

24608SVB24608 N

EPTUN

E AVE2010-09-08

15:06Back

191.7

11< 1.3

< 8.8< 3.4

48< 7.9

< 4.4< 3.7

< 5.8< 0.00023

< 0.12< 3.6

N24608SVH

24608 NEPTU

NE AVE

2012-05-1814:50

House21

0.56< 18

0.77 J, b< 5.9

< 9.2< 3.8

< 5.3< 2.9

< 2.5< 3.8

< 0.000160.081

< 9.7N

24608SVF24608 N

EPTUN

E AVE2012-05-18

15:04Front

127.9

< 200.57 J, b

< 6.2< 9.8

< 4< 5.6

< 3.1< 2.6

< 4.1< 0.00017

< 0.083< 10

N24608SVFD

24608 NEPTU

NE AVE

2012-05-1815:04

Front12

7.7< 20

0.64 J, b< 6.3

< 9.9< 4.1

< 5.7< 3.2

< 2.7< 4.2

< 0.00017< 0.084

< 10N

24608SVB24608 N

EPTUN

E AVE2012-05-18

15:22Back

191.6

< 190.41 J, b

< 6.1< 9.6

19< 5.5

< 3< 2.6

< 4< 0.00016

< 0.081< 10

N24608SVH

24608 NEPTU

NE AVE

2013-08-3015:02

House20

0.8298

3.6 J, b< 9

< 14< 5.8

< 8.1< 4.5

< 3.8< 5.9

< 0.00024< 0.12

< 15N

24608SVB24608 N

EPTUN

E AVE2013-08-30

15:18Back

192.6

2001.8 J, b

< 9< 14

36< 8.1

< 4.5< 3.8

< 5.9< 0.00024

< 0.12< 15

N24608SVF

24608 NEPTU

NE AVE

2013-08-3015:41

Front11

9.7< 29

1.7 J, b< 9.1

< 14< 5.9

< 8.2< 4.5

< 3.8< 6

< 0.00024< 0.12

< 15P24608SVB

24608 PANAM

A AVE2010-08-12

14:47Back

182.6

60 b16 J

11 b< 3.4

< 5.7< 7.9

< 4.4< 3.7

< 5.8< 0.00023

< 0.12< 3.6

P24608SVF24608 PAN

AMA AVE

2010-08-1215:23

Front15

3.632 b

< 6.39.8 b

6.542

< 8.1< 4.5

9.6< 5.9

< 0.00024< 0.12

< 3.7P24608SVB

24608 PANAM

A AVE2012-04-06

15:43Back

191.9

< 182.2 J, b

< 5.8< 9.1

120< 5.2

< 2.9< 2.5

< 3.80.00079

< 0.12< 9.6

P24608SVBD24608 PAN

AMA AVE

2012-04-0615:43

Back19

1.9< 18

4.2 J, b< 5.8

< 9.1110

< 5.23.7

< 2.5< 3.8

0.0008< 0.12

< 9.6P24608SVF

24608 PANAM

A AVE2012-04-06

16:26Front

173.4

< 182.6 J, b

< 5.7< 9

11098

< 2.9< 2.4

< 3.8< 0.00024

< 0.12< 9.5

P24608SVHA24608 PAN

AMA AVE

2012-04-2711:38

House19

1.1< 19

1.1 J, b< 5.9

< 9.21100

< 5.3< 3

< 2.5< 3.9

0.00310.4

< 9.8R24608SVB

24608 RAVENN

A AVE2010-04-08

11:15Back

183.2

27< 2.3

12 J4.8

< 5.6< 7.8

< 4.3< 3.6

< 5.7< 0.00023

< 0.11< 3.6

R24608SVF24608 RAVEN

NA AVE

2010-04-0812:14

Front20

0.1746

< 2.413 J

8.26.7

< 8.1< 4.5

< 3.8< 5.9

< 0.00024< 0.12

72R24608SVG

24608 RAVENN

A AVE2010-08-04

13:23G

arage19

1.222

< 6.2< 8.8

< 3.4< 5.7

< 7.9< 4.4

21< 5.8

< 0.00023< 0.12

< 3.6R24608SVG

24608 RAVENN

A AVE2012-05-17

15:13G

arage21

0.81< 20

< 0.33 PF< 6.3

< 9.9< 4.1

< 5.7< 3.2

< 2.7< 4.2

< 0.00023< 0.11

< 10R24608SVG

D24608 RAVEN

NA AVE

2012-05-1715:13

Garage

200.8

< 200.46 J, b

< 6.2< 9.7

< 4< 5.6

3.3< 2.6

< 4.1< 0.00022

< 0.11< 10

R24608SVB24608 RAVEN

NA AVE

2012-05-1715:25

Back19

2< 19

< 0.31 PF< 5.9

< 9.25.4

< 5.3< 3

< 2.5< 3.9

0.00035< 0.11

< 9.8R24608SVF

24608 RAVENN

A AVE2012-05-17

16:01Front

200.63

< 19< 0.31 PF

< 6< 9.3

< 3.8< 5.4

< 3< 2.5

< 3.9< 0.00021

< 0.11< 9.8

R24608SVG24608 RAVEN

NA AVE

2013-08-2210:02

Garage

201.6

362.1 J, b

< 8.7< 14

< 5.6< 7.8

< 4.4< 3.7

< 5.7< 0.00023

< 0.12< 14

R24608SVB24608 RAVEN

NA AVE

2013-08-2210:04

Back18

3.4< 29

1.4 J, b< 9.1

< 14< 5.9

< 8.2< 4.6

< 3.9< 6

< 0.00024< 0.12

< 15R24608SVF

24608 RAVENN

A AVE2013-08-22

10:33Front

191.1

321.5 J, b

< 9.2< 14

13< 8.3

< 4.6< 3.9

< 6< 0.00024

< 0.12< 15

R24608SVFS24608 RAVEN

NA AVE

2013-08-2210:33

Front20.5

1.0931 M

1< 0.73 U

< 20 U< 20 U

11< 2 U

< 2 U< 2 U

< 2 U< 0.16 U

< 20 UN

24609SVH24609 N

EPTUN

E AVE2010-04-28

14:09House

174

< 11< 2.4

< 8.9< 3.5

< 5.8< 8

< 4.5< 3.8

< 5.9< 0.00024

< 0.12< 3.7

N24609SVF

24609 NEPTU

NE AVE

2010-04-2815:06

Front21

< 0.02412

< 2.430

< 3.6< 5.9

< 8.2< 4.5

< 3.8< 6

< 0.00024< 0.12

< 3.8N

24609SVFS24609 N

EPTUN

E AVE2010-04-28

15:06Front

21.9< 0.16

240.71 J

77< 17

< 1.7< 1.7

< 1.7< 1.7

2.2< 0.16

< 17N

24609SVB24609 N

EPTUN

E AVE2010-04-28

15:48Back

21< 0.024

32< 2.3

13< 3.5

6.4< 8

< 4.44.9

< 5.8< 0.00024

< 0.12< 3.6

N24609SVF

24609 NEPTU

NE AVE

2010-08-2013:35

Front20

0.7117

< 1.3< 8.8

< 3.4< 5.7

< 7.9< 4.4

< 3.7< 5.8

< 0.00023< 0.12

< 3.6N

24609SVH24609 N

EPTUN

E AVE2010-08-20

14:03House

145.6

26< 1.4

< 9.35.1

< 6< 8.4

< 4.6< 3.9

< 6.1< 0.00025

< 0.12< 3.8

N24609SVB

24609 NEPTU

NE AVE

2010-08-2014:30

Back21

0.3538

< 1.3< 8.6

4.9< 5.6

< 7.8< 4.3

< 3.6< 5.7

< 0.00023< 0.11

6.7N

24609SVH24609 N

EPTUN

E AVE2010-12-10

15:19House

164.9

< 111.6 J, b

< 8.7< 3.4

< 5.6< 7.8

< 4.35.2

< 5.7< 0.00023

< 0.12< 3.6

N24609SVB

24609 NEPTU

NE AVE

2010-12-1015:42

Back21

0.23< 10

1.4 J, b< 8.3

< 3.2< 5.4

< 7.5< 4.2

< 3.5< 5.5

< 0.00022< 0.11

< 3.4N

24609SVBD24609 N

EPTUN

E AVE2010-12-10

15:42Back

210.23

< 100.97 J, b

< 8.3< 3.2

< 5.4< 7.5

< 4.2< 3.5

< 5.5< 0.00022

< 0.11< 3.4

Page 252: Table Proposed Cleanup Levels Groundwater · 10/21/2013  · Table 04 Summery of PrsllMnery Cost ES11motee for Soleening Feasibility Study Former Kest Property Carson, CA GeotFnlenGOneullanle

Table B-2Sub-Slab Soil Vapor Results

Former Kast Property

Carson, California

Residential Properties Sampled Through August 31, 2013

Page 20 of 235

Oxygen

Oxygen/Argon

Carbon Dioxide

AcetoneN

aphthaleneEthanol

2-Butanone (M

ethyl Ethyl Ketone)

ChloroformTetrachloro-

etheneToluene

BenzeneFreon 12

Methane

HeliumCarbon

DisulfideM

OL %

MO

L %M

OL %

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

MO

L %M

OL %

UG

/M3

100.00%100.00%

92.56%52.63%

49.98%18.72%

17.61%16.54%

8.00%7.84%

7.80%6.94%

6.17%5.34%

4.80%Sam

ple IDAddress

Sample D

ateSam

ple Time

Location

AnalyteU

nitsFrequency of D

etection

N24609SVF

24609 NEPTU

NE AVE

2010-12-1015:52

Front21

0.51< 11

1.9 J, b< 8.4

< 3.3< 5.5

< 7.6< 4.2

< 3.6< 5.5

< 0.00022< 0.11

< 3.5N

24609SVH24609 N

EPTUN

E AVE2013-05-03

10:11House

165.2

< 242.1 J, b

< 7.7< 12

< 5< 6.9

< 3.8< 3.2

< 5< 0.0002

< 0.1< 13

N24609SVB

24609 NEPTU

NE AVE

2013-05-0310:33

Back21

0.7< 28

< 0.58< 8.8

< 14< 5.7

< 8< 4.4

< 3.8< 5.8

< 0.00024< 0.12

< 15N

24609SVF24609 N

EPTUN

E AVE2013-05-03

10:55Front

200.42

< 312.1 J, b

< 9.8< 15

< 6.3< 8.8

< 4.9< 4.2

< 6.4< 0.00026

0.14< 16

P24609SVH24609 PAN

AMA AVE

2010-04-3013:27

House20

0.5533

< 6.254

8.8< 5.7

39< 4.4

< 3.7< 5.8

< 0.00023< 0.12

< 3.6P24609SVF

24609 PANAM

A AVE2010-04-30

14:39Front

210.045

366.4 J

324.9

29< 7.9

10< 3.7

< 5.8< 0.00023

< 0.126

P24609SVB24609 PAN

AMA AVE

2010-04-3015:33

Back20

1.315

3020

< 3.68.3

< 8.2< 4.6

5.7< 6

< 0.00024< 0.12

< 3.8P24609SVH

24609 PANAM

A AVE2010-10-25

09:26House

182.6

< 12< 1.4

< 9.2< 3.6

< 6< 8.3

< 4.6< 3.9

< 6< 0.00024

< 0.12< 3.8

P24609SVF24609 PAN

AMA AVE

2010-10-2510:11

Front21

0.4812

< 1.119

< 2.9< 4.8

< 6.76.1

< 3.2< 4.9

< 0.0002< 0.1

< 3.1P24609SVB

24609 PANAM

A AVE2010-10-25

10:56Back

192.2

16< 1.4

< 9< 3.5

< 5.8< 8.1

< 4.5< 3.8

< 5.9< 0.00024

< 0.12< 3.7

P24609SVBS24609 PAN

AMA AVE

2010-10-2510:56

Back19.1

2.4121

< 1.6< 20

< 202.3

< 2< 2

< 2< 2

< 0.19< 20

P24609SVF24609 PAN

AMA AVE

2011-02-1810:08

Front20

0.22< 11

3.2 J, b< 8.4

< 3.3< 5.5

< 7.6< 4.2

< 3.6< 5.5

< 0.00022< 0.11

< 3.5P24609SVFS

24609 PANAM

A AVE2011-02-18

10:08Front

22.10.244

< 17< 1.3

< 17< 17

< 1.7< 1.7

< 1.7< 1.7

3.2< 0.15

< 17P24609SVH

24609 PANAM

A AVE2011-02-18

10:31House

211.3

< 11< 0.32

< 8.4< 3.3

< 5.5< 7.6

< 4.2< 3.6

< 5.5< 0.00022

< 0.11< 3.5

P24609SVB24609 PAN

AMA AVE

2011-02-1811:28

Back19

1.9< 12

0.44 J, b< 9.2

< 3.6< 6

< 8.3< 4.6

< 3.9< 6

< 0.00024< 0.12

< 3.8R24609SVH

24609 RAVENN

A AVE2010-11-09

09:25House

200.2

181.2 J, b

< 8.8< 3.5

< 5.7< 8

< 4.4< 3.8

< 5.8< 0.00024

< 0.12< 3.6

R24609SVG24609 RAVEN

NA AVE

2010-11-0909:59

Garage

210.22

261.2 J, b

18< 3.4

< 5.7< 7.9

< 4.4< 3.7

< 5.8< 0.00023

< 0.12< 3.6

R24609SVB24609 RAVEN

NA AVE

2010-11-0910:31

Back21

0.031< 10

2.3 J, b< 8.4

< 3.3< 5.4

< 7.6< 4.2

< 3.6< 5.5

< 0.00022< 0.11

5.2R24609SVH

24609 RAVENN

A AVE2012-09-21

15:01House

200.39

< 290.8 J, b

14< 14

< 5.9< 8.2

< 4.6< 3.9

< 6< 0.00031

0.28< 15

R24609SVG24609 RAVEN

NA AVE

2012-09-2115:02

Garage

191.4

< 310.92 J, b

< 9.9< 16

< 6.4< 9

< 5< 4.2

< 6.5< 0.00026

< 0.13< 16

R24609SVB24609 RAVEN

NA AVE

2012-09-2115:34

Back20

0.4354

0.75 J, b12

< 13< 5.5

< 7.6< 4.2

< 3.6< 5.5

< 0.00022< 0.11

< 14R24609SVH

24609 RAVENN

A AVE2013-04-30

14:54House

200.38

281.5 J, b

< 9< 14

< 5.8< 8.1

< 4.5< 3.8

< 5.9< 0.00024

0.36< 15

R24609SVB24609 RAVEN

NA AVE

2013-04-3015:08

Back22

0.41< 30

1.5 J, b< 9.4

< 15< 6.1

< 8.5< 4.7

< 4< 6.2

< 0.00032< 0.16

< 16R24609SVG

24609 RAVENN

A AVE2013-04-30

15:22G

arage20

0.94< 29

0.99 J, b< 9.1

< 14< 5.9

< 8.2< 4.6

< 3.9< 6

< 0.00024< 0.12

< 15M

24612SVH24612 M

ARBELLA AVE2010-08-13

09:15House

190.2

29< 6

26< 3.4

< 5.6< 7.8

< 4.3< 3.6

< 5.7< 0.00023

< 0.11< 3.6

M24612SVB

24612 MARBELLA AVE

2010-08-1310:03

Back20

0.09338

< 6.2< 8.8

1132

< 7.9< 4.4

< 3.7< 5.8

< 0.00023< 0.12

< 3.6M

24612SVG24612 M

ARBELLA AVE2010-08-13

10:48G

arage18

1.321

< 6.3< 9

< 3.5< 5.8

< 8.1< 4.5

< 3.8< 5.9

< 0.00024< 0.12

< 3.7M

24612SVH24612 M

ARBELLA AVE2012-05-10

14:39House

200.79

< 18< 0.3 PF

< 5.8< 9.1

< 3.8< 5.2

< 2.9< 2.5

< 3.8< 0.00016

< 0.078< 9.6

M24612SVG

24612 MARBELLA AVE

2012-05-1014:53

Garage

192.4

< 19< 0.31 PF

< 6< 9.3

< 3.8< 5.4

< 3< 2.5

< 3.9< 0.00016

< 0.079< 9.8

M24612SVG

D24612 M

ARBELLA AVE2012-05-10

14:53G

arage19

2.3< 19

< 0.31 PF< 6

< 9.3< 3.8

< 5.4< 3

< 2.5< 3.9

< 0.00016< 0.079

< 9.8M

24612SVB24612 M

ARBELLA AVE2012-05-10

15:17Back

200.71

< 18< 0.3 PF

< 5.8< 9.1

< 3.8< 5.2

< 2.9< 2.5

< 3.8< 0.00016

< 0.078< 9.6

N24612SVH

24612 NEPTU

NE AVE

2010-11-1109:14

House18

2.624

1 J< 8.9

< 3.5< 5.8

< 8< 4.5

< 3.8< 5.9

< 0.00024< 0.12

< 3.7N

24612SVF24612 N

EPTUN

E AVE2010-11-11

09:44Front

20< 0.024

181.1 J

< 8.9< 3.5

6.2< 8

< 4.5< 3.8

< 5.9< 0.00024

< 0.12< 3.7

N24612SVFD

24612 NEPTU

NE AVE

2010-11-1109:44

Front20

< 0.02421

1.4 J< 8.9

< 3.55.8

< 8< 4.5

< 3.8< 5.9

< 0.00024< 0.12

< 3.7N

24612SVBA24612 N

EPTUN

E AVE2011-02-07

09:21Back

210.62

< 10< 0.31

< 8.1< 3.2

< 5.3< 7.3

< 4.1< 3.4

< 5.3< 0.00022

< 0.11< 3.4

N24612SVBAS

24612 NEPTU

NE AVE

2011-02-0709:21

Back21.4

0.737< 16

< 1.3< 16

< 163.8

< 1.6< 1.6

< 1.62.5

< 0.15< 16

N24612SVF

24612 NEPTU

NE AVE

2011-03-1114:50

Front20

1.124

1.6 J, b< 8.8

< 146.4

< 7.9< 4.4

< 3.7< 5.8

< 0.00023< 0.12

< 14N

24612SVH24612 N

EPTUN

E AVE2011-03-11

15:17House

191.9

< 111.6 J, b

< 9.1< 14

< 5.9< 8.2

< 4.6< 3.9

< 6< 0.00024

< 0.12< 15

N24612SVBA

24612 NEPTU

NE AVE

2011-03-1115:27

Back21

0.413

2 J, b< 9.1

< 14< 5.9

< 8.2< 4.6

< 3.9< 6

< 0.00024< 0.12

< 15N

24612SVH24612 N

EPTUN

E AVE2013-08-13

14:56House

191.2

271.2 J, b

< 8.6< 13

< 5.5< 7.7

< 4.3< 3.6

< 5.6< 0.00023

< 0.11< 14

N24612SVF

24612 NEPTU

NE AVE

2013-08-1315:31

Front20

0.3150

< 0.82 PF< 9.2

< 14< 5.9

< 8.2< 4.6

< 3.9< 6

< 0.00024< 0.12

< 15N

24612SVBA24612 N

EPTUN

E AVE2013-08-13

15:48Back

201.3

1201.1 J, b

< 9< 14

< 5.8< 8.1

< 4.5< 3.8

< 5.9< 0.00024

< 0.12< 15

P24612SVB24612 PAN

AMA AVE

2013-01-2510:24

Back21

0.51< 27

2 J, b< 8.6

< 14< 5.6

< 7.8< 4.3

< 3.6< 5.7

< 0.00023< 0.11

< 14P24612SVG

24612 PANAM

A AVE2013-01-25

10:58G

arage21

0.11< 26

0.69 J, b< 8.1

< 13< 5.3

< 7.3< 4.1

< 3.4< 5.3

< 0.00022< 0.11

< 13P24612SVHA

24612 PANAM

A AVE2013-02-06

15:34House

200.26

< 281.2 J, b

< 8.8< 14

< 5.7< 7.9

< 4.4< 3.7

< 5.8< 0.00023

0.32< 14

P24612SVHA24612 PAN

AMA AVE

2013-05-1714:51

House21

0.79< 30

0.94 J, b16

< 15< 6.1

< 8.526

< 4< 6.2

< 0.000250.16

< 16P24612SVB

24612 PANAM

A AVE2013-05-17

15:28Back

210.8

360.78 J, b

< 9.2< 14

9.5< 8.3

7.2 j< 3.9

< 6< 0.00024

< 0.12< 15

P24612SVBD24612 PAN

AMA AVE

2013-05-1715:28

Back21

0.8635

1.1 J, b< 9.3

< 1510

< 8.450 j

< 4< 6.1

< 0.00025< 0.12

< 15P24612SVG

24612 PANAM

A AVE2013-05-17

15:34G

arage21

0.1476

0.75 J, b12

22< 5.7

< 8260

< 3.8< 5.8

< 0.00024< 0.12

< 15R24612SVH

24612 RAVENN

A AVE2011-01-14

10:04House

201.1

12< 1.3

< 8.8< 3.4

< 5.7< 7.9

< 4.4< 3.7

< 5.80.00061

< 0.12< 3.6

R24612SVG24612 RAVEN

NA AVE

2011-01-1410:51

Garage

21< 0.023

27< 1.3

< 8.64.9

< 5.6< 7.8

< 4.3< 3.6

< 5.7< 0.00023

< 0.11< 3.6

R24612SVBB24612 RAVEN

NA AVE

2011-01-1411:35

Back20

0.1939

< 1.4< 9

< 3.58.6

< 8.1< 4.5

< 3.8< 5.9

< 0.00024< 0.12

< 3.7

Page 253: Table Proposed Cleanup Levels Groundwater · 10/21/2013  · Table 04 Summery of PrsllMnery Cost ES11motee for Soleening Feasibility Study Former Kest Property Carson, CA GeotFnlenGOneullanle

Table B-2Sub-Slab Soil Vapor Results

Former Kast Property

Carson, California

Residential Properties Sampled Through August 31, 2013

Page 21 of 235

Oxygen

Oxygen/Argon

Carbon Dioxide

AcetoneN

aphthaleneEthanol

2-Butanone (M

ethyl Ethyl Ketone)

ChloroformTetrachloro-

etheneToluene

BenzeneFreon 12

Methane

HeliumCarbon

DisulfideM

OL %

MO

L %M

OL %

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

MO

L %M

OL %

UG

/M3

100.00%100.00%

92.56%52.63%

49.98%18.72%

17.61%16.54%

8.00%7.84%

7.80%6.94%

6.17%5.34%

4.80%Sam

ple IDAddress

Sample D

ateSam

ple Time

Location

AnalyteU

nitsFrequency of D

etection

R24612SVBB24612 RAVEN

NA AVE

2012-11-0114:46

Back20

1.4< 28

2.5 J, b< 8.8

< 148.6

< 7.9< 4.4

< 3.7< 5.8

< 0.00023< 0.12

< 14R24612SVBBD

24612 RAVENN

A AVE2012-11-01

14:46Back

201.3

< 282.6 J, b

< 8.8< 14

8.4< 8

< 4.4< 3.8

< 5.8< 0.00024

< 0.12< 15

R24612SVH24612 RAVEN

NA AVE

2012-11-0114:49

House18

1.8< 27

3.7 J, b< 8.7

< 14< 5.6

< 7.8< 4.3

< 3.7< 5.7

0.00028< 0.12

< 14R24612SVG

24612 RAVENN

A AVE2012-11-01

15:32G

arage20

0.9926

5.5 J, b8.9

< 13< 5.3

< 7.45.3

< 3.5< 5.4

< 0.00022< 0.11

< 14R24612SVBB

24612 RAVENN

A AVE2013-06-25

14:50Back

201

< 290.99 J, b

< 9.3< 14

< 6< 8.3

< 4.6< 3.9

< 6.1< 0.00025

< 0.12< 15

R24612SVH24612 RAVEN

NA AVE

2013-06-2514:53

House19

1.6< 28

0.85 J, b< 8.7

< 14< 5.7

< 7.9< 4.4

< 3.7< 5.7

< 0.00023< 0.12

< 14R24612SVG

24612 RAVENN

A AVE2013-06-25

15:18G

arage20

1.136

< 0.79< 8.8

< 14< 5.7

< 7.9< 4.4

< 3.7< 5.8

< 0.00023< 0.12

< 14M

24613SVH24613 M

ARBELLA AVE2010-05-26

09:03House

200.7

26< 2.3

149.8

< 5.6< 7.7

< 4.3< 3.6

< 5.6< 0.00023

< 0.11100

M24613SVG

24613 MARBELLA AVE

2010-05-2610:01

Garage

21< 0.024

1622 J

< 8.8< 3.5

< 5.7< 8

< 4.4< 3.8

< 5.8< 0.00024

< 0.12< 3.6

M24613SVB

24613 MARBELLA AVE

2010-05-2610:49

Back21

< 0.024< 11

< 2.3< 8.8

< 3.5< 5.7

< 8< 4.4

< 3.8< 5.8

< 0.00024< 0.12

< 3.6M

24613SVG24613 M

ARBELLA AVE2012-10-11

11:01G

arage21

0.42< 29

3.3 J, b< 9.1

< 14< 5.9

< 8.2< 4.6

< 3.9< 6

< 0.00024< 0.12

< 15M

24613SVGS

24613 MARBELLA AVE

2012-10-1111:01

Garage

21.20.465

23< 0.77 U

< 18 U< 18 U

< 1.8 U< 1.8 U

< 1.8 U< 1.8 U

2.1< 0.17 U

< 18 UM

24613SVB24613 M

ARBELLA AVE2012-10-11

11:41Back

240.17

401.5 J, b

8.7< 13

< 5.3< 7.3

< 4.1< 3.4

< 5.3< 0.00029

< 0.14< 13

M24613SVHA

24613 MARBELLA AVE

2012-10-2412:14

House18

1.841

2.3 J, b28

< 14< 5.9

< 8.2< 4.6

< 3.9< 6

< 0.00024< 0.12

< 15M

24613SVHA24613 M

ARBELLA AVE2013-04-19

10:01House

202.3

372.4 J, b

< 8.4< 13

< 5.4< 7.6

< 4.2< 3.6

< 5.5< 0.00022

< 0.11< 14

M24613SVB

24613 MARBELLA AVE

2013-04-1910:10

Back22

0.13< 29

1.8 J, b< 9.1

< 14< 5.9

< 8.2< 4.5

< 3.8< 6

< 0.00024< 0.12

< 15M

24613SVBD24613 M

ARBELLA AVE2013-04-19

10:10Back

220.13

< 290.71 J, b

< 9.3< 14

< 6< 8.3

< 4.6< 3.9

< 6.1< 0.00025

< 0.12< 15

M24613SVG

24613 MARBELLA AVE

2013-04-1910:35

Garage

210.24

< 260.58 J, b

< 8.2< 13

< 5.3< 7.4

< 4.1< 3.5

< 5.4< 0.00022

< 0.11< 14

N24613SVB

24613 NEPTU

NE AVE

2010-08-0913:59

Back20

< 0.02447

< 6.4< 9.1

1111

< 8.2< 4.6

< 3.9< 6

0.007< 0.12

27N

24613SVF24613 N

EPTUN

E AVE2010-08-09

14:44Front

200.1

100< 6.3

< 95.9

< 5.8< 8.1

< 4.54.7

< 5.90.00034

< 0.12150

N24613SVH

24613 NEPTU

NE AVE

2012-05-1109:55

House19

1.1< 18

< 2.8 PF< 5.7

< 9< 3.7

< 5.2< 2.9

< 2.45.6

< 0.0002< 0.098

< 9.5N

24613SVF24613 N

EPTUN

E AVE2012-05-11

10:04Front

210.64

< 19< 3.1 PF

< 6.2< 9.7

< 4< 5.6

< 3.1< 2.6

< 4< 0.0002

< 0.1< 10

N24613SVFS

24613 NEPTU

NE AVE

2012-05-1110:04

Front21.1

0.655< 19 U

< 0.79 U< 19 U

< 19 U< 1.9 U

< 1.9 U< 1.9 U

< 1.9 U2.8

< 0.18 U< 19 U

N24613SVB

24613 NEPTU

NE AVE

2012-05-1110:42

Back20

0.1< 19

< 3 PF< 6

< 9.38.8

< 5.4< 3

< 2.5< 3.9

< 0.00021< 0.1

< 9.8N

24613SVBS24613 N

EPTUN

E AVE2012-05-11

10:42Back

21.1< 0.16 U

< 18 U< 0.74 U

< 18 U< 18 U

7.3< 1.8 U

< 1.8 U< 1.8 U

< 1.8 U< 0.16 U

< 18 UN

24613SVB24613 N

EPTUN

E AVE2013-08-29

09:42Back

200.29

< 310.95 J, b

< 9.8 PF< 15

< 6.3< 8.8

< 4.9< 4.1

< 6.40.00034

< 0.13< 16

N24613SVBD

24613 NEPTU

NE AVE

2013-08-2909:42

Back20

0.2933

1.3 J, b< 9.8 PF

< 15< 6.3

< 8.8< 4.9

< 4.1< 6.4

0.00034< 0.13

< 16N

24613SVH24613 N

EPTUN

E AVE2013-08-29

09:47House

182.4

< 311 J, b

< 9.7 PF< 15

< 6.3< 8.8

< 4.9< 4.1

< 6.4< 0.00026

< 0.13< 16

P24613SVF24613 PAN

AMA AVE

2010-06-2514:07

Front21

< 0.02449

< 2.4 UJ

138.4

< 5.9< 8.2

< 4.5< 3.8

< 6< 0.00024

< 0.12< 3.8

P24613SVH24613 PAN

AMA AVE

2010-06-2514:43

House20

0.16140

< 2.4 UJ

6522

6.497

< 4.6< 3.9

< 6< 0.00024

< 0.1220

P24613SVB24613 PAN

AMA AVE

2010-06-2515:25

Back20

0.09648

< 2.3 UJ

134.4

< 5.7120

< 4.46.6

< 5.8< 0.00024

< 0.12230

P24613SVH24613 PAN

AMA AVE

2011-02-1010:10

House21

0.3318

0.8 J, b< 8.4

< 3.3< 5.5

120< 4.2

< 3.6< 5.5

< 0.00022< 0.11

< 3.5P24613SVF

24613 PANAM

A AVE2011-02-10

10:48Front

210.064

< 110.65 J, b

< 8.8< 3.4

< 5.7< 7.9

< 4.4< 3.7

< 5.8< 0.00023

< 0.12< 3.6

P24613SVB24613 PAN

AMA AVE

2011-02-1010:59

Back21

0.11< 11

0.64 J, b< 9

< 3.5< 5.8

16< 4.5

< 3.8< 5.9

< 0.00024< 0.12

< 3.7P24613SVB

24613 PANAM

A AVE2012-09-13

14:58Back

200.15

562.3 J, b

< 9.1< 14

< 5.9< 8.2

< 4.6< 3.9

< 6< 0.00024

< 0.12< 15

P24613SVBD24613 PAN

AMA AVE

2012-09-1314:58

Back20

0.1644

2.5 J, b9

< 14< 5.8

23 j< 4.5

< 3.8< 5.9

< 0.00024< 0.12

< 15P24613SVF

24613 PANAM

A AVE2012-09-13

15:05Front

200.12

384.5 J, b

< 9< 14

< 5.8< 8.1

< 4.5< 3.8

< 5.9< 0.00024

< 0.12< 15

P24613SVH24613 PAN

AMA AVE

2012-09-1315:45

House19

0.6< 29

1.8 J, b< 9.1

< 14< 5.9

190< 4.6

< 3.9< 6

< 0.00024< 0.12

< 15R24613SVH

24613 RAVENN

A AVE2009-12-31

13:46House

210.96

51< 2.4

16 J4.5

< 5.9< 8.2

< 4.64.2

< 6< 0.00024

< 0.12< 3.8

R24613SVF24613 RAVEN

NA AVE

2009-12-3114:22

Front21

0.331

< 2.424 J

10< 6

4535

< 3.9< 6

< 0.00024< 0.12

5.8R24613SVFS

24613 RAVENN

A AVE2009-12-31

14:22Front

21.80.3

49< 1.6

< 214.8 J

1.5 J< 2.1

< 2.11.5 J

2.5< 0.13

2.2 JR24613SVB

24613 RAVENN

A AVE2009-12-31

15:07Back

19< 0.024

35< 2.4

12 J< 3.6

< 5.9< 8.2

< 4.5< 3.8

< 6< 0.00024

< 0.12< 3.8

R24613SVH24613 RAVEN

NA AVE

2011-05-2010:20

House20

0.64< 11

1.2 J, b< 8.8

< 14< 5.7

< 7.9< 4.4

< 3.7< 5.8

0.00029< 0.12

< 14R24613SVF

24613 RAVENN

A AVE2011-05-20

10:26Front

211.1

< 222.8 J, b

< 17< 27

< 11< 15

17< 7.2

< 11< 0.00045

< 0.23< 28

R24613SVFS24613 RAVEN

NA AVE

2011-05-2010:26

Front21.7

1.3< 17 U

< 0.99 U< 17 U

< 17 U3.8

< 1.7 U< 1.7 U

< 1.7 U2.5

< 0.15 U< 17 U

R24613SVB24613 RAVEN

NA AVE

2011-05-2010:55

Back21

0.47< 11

0.99 J, b< 8.8

< 14< 5.7

< 8< 4.4

< 3.8< 5.8

< 0.00024< 0.12

< 15R24613SVBS

24613 RAVENN

A AVE2011-05-20

10:55Back

22.10.485

< 18 U< 1 U

< 18 U< 18 U

2< 1.8 U

< 1.8 U< 1.8 U

2.4< 0.16 U

< 18 UM

24616SVH24616 M

ARBELLA AVE2010-04-22

15:26House

191.2

465.6 J, b

1412

< 5.7< 7.9

< 4.4< 3.7

< 5.80.00062

0.15< 3.6

M24616SVB

24616 MARBELLA AVE

2010-04-2216:44

Back21

< 0.023130

9.6 J, b33

22< 11

< 16< 8.6

< 7.3< 11

< 0.00023< 0.11

< 7.1M

24616SVF24616 M

ARBELLA AVE2010-04-23

11:55Front

210.029

202.9 J, b

< 8.63.4

< 5.6< 7.8

< 4.3< 3.6

< 5.7< 0.00023

< 0.114.2

M24616SVFD

24616 MARBELLA AVE

2010-04-2311:55

Front21

0.02616

< 2.3< 8.6

4< 5.6

< 7.8< 4.3

< 3.6< 5.7

< 0.00023< 0.11

< 3.6M

24616SVH24616 M

ARBELLA AVE2010-08-25

09:07House

181.8

231.7 J, b

114.3

13< 7.9

< 4.4< 3.7

< 5.8< 0.00023

0.12< 3.6

Page 254: Table Proposed Cleanup Levels Groundwater · 10/21/2013  · Table 04 Summery of PrsllMnery Cost ES11motee for Soleening Feasibility Study Former Kest Property Carson, CA GeotFnlenGOneullanle

Table B-2Sub-Slab Soil Vapor Results

Former Kast Property

Carson, California

Residential Properties Sampled Through August 31, 2013

Page 22 of 235

Oxygen

Oxygen/Argon

Carbon Dioxide

AcetoneN

aphthaleneEthanol

2-Butanone (M

ethyl Ethyl Ketone)

ChloroformTetrachloro-

etheneToluene

BenzeneFreon 12

Methane

HeliumCarbon

DisulfideM

OL %

MO

L %M

OL %

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

MO

L %M

OL %

UG

/M3

100.00%100.00%

92.56%52.63%

49.98%18.72%

17.61%16.54%

8.00%7.84%

7.80%6.94%

6.17%5.34%

4.80%Sam

ple IDAddress

Sample D

ateSam

ple Time

Location

AnalyteU

nitsFrequency of D

etection

M24616SVB

24616 MARBELLA AVE

2010-08-2509:52

Back19

1.225

2.5 J, b< 9.1

< 3.6190

< 8.2< 4.6

< 3.9< 6

< 0.00024< 0.12

< 3.8M

24616SVF24616 M

ARBELLA AVE2010-08-25

10:30Front

200.23

2002.2 J, b

1952

< 5.89.4

7.2< 3.8

< 5.9< 0.00024

< 0.12< 3.7

M24616SVH

24616 MARBELLA AVE

2011-03-1815:10

House20

1.3< 11

0.94 J, b< 9

< 14< 5.8

< 8.1< 4.5

< 3.8< 5.9

< 0.00024< 0.12

< 15M

24616SVF24616 M

ARBELLA AVE2011-03-18

15:25Front

210.15

170.89 J, b

< 9< 14

< 5.8< 8.1

< 4.5< 3.8

< 5.9< 0.00024

< 0.12< 15

M24616SVFD

24616 MARBELLA AVE

2011-03-1815:25

Front21

0.15< 11

0.38 J, b< 8.9

< 14< 5.8

< 8< 4.5

< 3.8< 5.9

< 0.00024< 0.12

< 15M

24616SVB24616 M

ARBELLA AVE2011-03-18

15:52Back

201

< 110.38 J, b

< 9< 14

< 5.8< 8.1

< 4.5< 3.8

< 5.9< 0.00024

< 0.12< 15

M24616SVB

24616 MARBELLA AVE

2013-08-0614:48

Back19

1.931

5.5 J, b< 9.4

< 15< 6.1

< 8.5< 4.7

< 4< 6.2

< 0.00025< 0.12

< 16M

24616SVH24616 M

ARBELLA AVE2013-08-06

14:48House

182.6

< 282 J, b

< 8.7< 14

< 5.7< 7.9

< 4.4< 3.7

< 5.7< 0.00023

< 0.12< 14

M24616SVF

24616 MARBELLA AVE

2013-08-0615:10

Front21

0.2528

1.2 J, b< 8.7

< 14< 5.7

< 7.9< 4.4

< 3.7< 5.7

< 0.00023< 0.12

< 14M

24617SVB24617 M

ARBELLA AVE2010-08-03

09:05Back

210.085

11 b< 5.4

< 7.73

< 5< 7

< 3.9< 3.3

< 5.1< 0.0002

< 0.16.8

M24617SVG

24617 MARBELLA AVE

2010-08-0310:01

Garage

190.25

< 11< 6.2

22< 3.4

< 5.724

< 4.4< 3.7

< 5.8< 0.00023

< 0.12< 3.6

M24617SVB

24617 MARBELLA AVE

2012-05-0310:00

Back22

0.076< 18

3.7 J, b< 5.8

< 9.1< 3.8

< 5.2< 2.9

< 2.5< 3.8

< 0.0002< 0.1

< 9.6M

24617SVBS24617 M

ARBELLA AVE2012-05-03

10:00Back

21.6< 0.17 U

< 18 U< 0.77 U

< 18 U< 18 U

< 1.8 U< 1.8 U

< 1.8 U< 1.8 U

2< 0.17 U

< 18 UM

24617SVH24617 M

ARBELLA AVE2012-05-03

10:20House

220.2

< 184.7 J, b

< 5.6< 8.8

< 3.739

< 2.8< 2.4

< 3.7< 0.0002

< 0.1< 9.3

M24617SVG

24617 MARBELLA AVE

2012-05-0310:41

Garage

210.38

< 192.3 J, b

< 6.1< 9.5

< 3.922

5.5< 2.6

< 4< 0.00021

< 0.1< 10

M24617SVG

S24617 M

ARBELLA AVE2012-05-03

10:41G

arage21.1

0.401< 18 U

< 0.74 U< 18 U

< 18 U< 1.8 U

8.6< 1.8 U

< 1.8 U1.8

< 0.16 U< 18 U

N24618SVH

24618 NEPTU

NE AVE

2010-05-1909:19

House20

0.1432

< 6.477

< 3.624

< 8.2< 4.6

7< 6

< 0.00024< 0.12

5.2N

24618SVB24618 N

EPTUN

E AVE2010-05-19

10:10Back

200.37

14< 6.4

< 9.1< 3.6

16< 8.2

< 4.6< 3.9

< 6< 0.00024

< 0.12< 3.8

N24618SVF

24618 NEPTU

NE AVE

2010-05-1911:06

Front21

0.3440

< 5.939

7.5< 5.5

< 7.6< 4.2

< 3.6< 5.5

< 0.00022< 0.11

18N

24618SVH24618 N

EPTUN

E AVE2010-09-08

13:39House

201.2

22< 1.3

13< 3.3

< 5.5< 7.6

< 4.2< 3.6

< 5.5< 0.00022

< 0.11< 3.5

N24618SVF

24618 NEPTU

NE AVE

2010-09-0814:22

Front20

0.5214

2.4 J< 9

< 3.5< 5.8

< 8.1< 4.5

4.1< 5.9

< 0.00024< 0.12

< 3.7N

24618SVB24618 N

EPTUN

E AVE2010-09-08

15:07Back

201.1

< 11< 1.3

< 8.8< 3.5

< 5.7< 8

< 4.4< 3.8

< 5.8< 0.00024

< 0.12< 3.6

N24618SVF

24618 NEPTU

NE AVE

2011-01-2714:57

Front21

0.3< 11

1.4 J, b< 8.9

< 3.5< 5.8

< 8< 4.5

< 3.8< 5.9

< 0.00024< 0.12

< 3.7N

24618SVH24618 N

EPTUN

E AVE2011-01-27

15:40House

200.6

< 110.8 J, b

< 9.1< 3.6

< 5.9< 8.2

< 4.6< 3.9

< 6< 0.00024

< 0.12< 3.8

N24618SVHD

24618 NEPTU

NE AVE

2011-01-2715:40

House21

0.59< 11

0.58 J, b< 9.1

< 3.6< 5.9

< 8.2< 4.6

< 3.9< 6

< 0.00024< 0.12

< 3.8N

24618SVB24618 N

EPTUN

E AVE2011-01-27

16:17Back

200.86

< 110.8 J, b

< 8.8< 3.5

< 5.7< 8

< 4.4< 3.8

< 5.8< 0.00024

< 0.12< 3.6

N24618SVH

24618 NEPTU

NE AVE

2012-07-2714:51

House20

1.3< 18

< 2.9< 5.8

< 9.14.3

< 5.2< 2.9

< 2.5< 3.8

< 0.00016< 0.078

< 9.6N

24618SVF24618 N

EPTUN

E AVE2012-07-27

14:59Front

210.4

< 19< 3

< 6.1< 9.5

< 3.9< 5.5

< 3< 2.6

< 4< 0.00016

< 0.08< 10

N24618SVB

24618 NEPTU

NE AVE

2012-07-2715:29

Back20

1.821

< 3< 6

< 9.3< 3.8

< 5.4< 3

< 2.5< 3.9

< 0.00016< 0.079

< 9.8P24618SVF

24618 PANAM

A AVE2010-05-14

09:40Front

21< 0.024

38< 6.3

1813

7.1< 8

< 4.5< 3.8

< 5.9< 0.00024

< 0.12< 3.7

P24618SVG24618 PAN

AMA AVE

2010-05-1412:01

Garage

20< 0.024

52< 6.4

1812

< 5.9< 8.2

< 4.6< 3.9

< 6< 0.00024

< 0.12< 3.8

P24618SVGD

24618 PANAM

A AVE2010-05-14

12:01G

arage19

< 0.03146

< 8.116

10< 7.5

< 10< 5.8

< 4.9< 7.6

< 0.00031< 0.15

< 4.8P24618SVB

24618 PANAM

A AVE2010-08-11

10:08Back

182.6

< 11< 6.2

< 8.8< 3.5

6.8< 8

< 4.4< 3.8

< 5.8< 0.00024

< 0.12< 3.6

P24618SVG24618 PAN

AMA AVE

2012-04-1915:22

Garage

210.8

< 302 J, b

< 9.7< 15

< 6.3< 8.7

< 4.8< 4.1

< 6.4< 0.00034

< 0.17< 16

P24618SVGD

24618 PANAM

A AVE2012-04-19

15:22G

arage21

0.82< 19

1.5 J, b< 6

< 9.3< 3.8

< 5.4< 3

< 2.5< 3.9

< 0.00021< 0.11

< 9.8P24618SVF

24618 PANAM

A AVE2012-04-19

15:45Front

210.5

< 181.2 J, b

< 5.8< 9.1

< 3.8< 5.2

< 2.9< 2.5

< 3.8< 0.00021

< 0.1< 9.6

R24618SVG24618 RAVEN

NA AVE

2013-02-1509:50

Garage

211.2

< 501.4 J, b

< 16< 25

< 10< 14

< 8< 6.8

< 10< 0.00079

< 0.4< 26

R24618SVB24618 RAVEN

NA AVE

2013-02-1510:21

Back20

0.4< 29

2.4 J, b< 9.1

< 14190

< 8.2< 4.6

< 3.9< 6

< 0.00024< 0.12

< 15R24618SVBD

24618 RAVENN

A AVE2013-02-15

10:21Back

210.4

< 291.4 J, b

< 9.3< 14

190< 8.4

< 4.6< 3.9

< 6.1< 0.00025

< 0.12< 15

R24618SVHA24618 RAVEN

NA AVE

2013-02-2714:57

House21

0.03130

5.8 J, b15

< 1539

< 8.425

< 4< 6.1

< 0.00025< 0.12

< 15R24618SVG

24618 RAVENN

A AVE2013-06-25

09:55G

arage20

1.5< 26

< 0.74< 8.2

< 13< 5.3

< 7.4< 4.1

< 3.5< 5.4

< 0.00022< 0.11

< 14R24618SVG

D24618 RAVEN

NA AVE

2013-06-2509:55

Garage

201.6

< 27< 0.76

< 8.6< 13

< 5.5< 7.7

< 4.3< 3.6

< 5.6< 0.00023

< 0.11< 14

R24618SVHA24618 RAVEN

NA AVE

2013-06-2510:24

House21

0.441

3.8 J, b< 9.2

< 1410

< 8.3< 4.6

< 3.9< 6

< 0.00024< 0.12

< 15R24618SVB

24618 RAVENN

A AVE2013-06-25

10:37Back

200.74

< 29< 0.82

< 9.2< 14

65< 8.3

< 4.6< 3.9

< 6< 0.00024

< 0.12< 15

N24619SVH

24619 NEPTU

NE AVE

2010-06-1709:36

House19

1.6< 11

< 2.4< 8.9

< 3.5< 5.8

< 8< 4.5

< 3.8< 5.9

< 0.00024< 0.12

< 3.7N

24619SVB24619 N

EPTUN

E AVE2010-06-17

10:26Back

21< 0.024

18< 2.4

< 8.9< 3.5

< 5.8< 8

< 4.5< 3.8

< 5.9< 0.00024

< 0.12< 3.7

N24619SVF

24619 NEPTU

NE AVE

2010-06-1711:07

Front21

< 0.02423

< 2.410

< 3.5< 5.8

< 8< 4.5

< 3.8< 5.9

< 0.00024< 0.12

< 3.7N

24619SVH24619 N

EPTUN

E AVE2012-07-13

10:14House

191.6

< 19< 3.1

9.7< 9.7

< 4< 5.6

< 3.1< 2.6

< 4< 0.00016

< 0.082< 10

N24619SVHS

24619 NEPTU

NE AVE

2012-07-1310:14

House19.8

1.5621

< 0.86 U< 21 U

< 21 U< 2.1 U

< 2.1 U< 2.1 U

< 2.1 U2.1

< 0.16 U< 21 U

N24619SVF

24619 NEPTU

NE AVE

2012-07-1310:46

Front20

0.72< 20

< 3.2< 6.4

< 10< 4.2

< 5.8< 3.2

< 2.7< 4.2

< 0.00017< 0.086

< 11N

24619SVFS24619 N

EPTUN

E AVE2012-07-13

10:46Front

20.80.755

< 21 U< 0.89 U

< 21 U< 21 U

< 2.1 U< 2.1 U

< 2.1 U< 2.1 U

2.1< 0.17 U

< 21 UN

24619SVB24619 N

EPTUN

E AVE2012-07-13

11:01Back

210.023

< 19< 3.1

< 6.2< 9.7

< 4< 5.6

< 3.1< 2.6

< 4< 0.00016

< 0.082< 10

Page 255: Table Proposed Cleanup Levels Groundwater · 10/21/2013  · Table 04 Summery of PrsllMnery Cost ES11motee for Soleening Feasibility Study Former Kest Property Carson, CA GeotFnlenGOneullanle

Table B-2Sub-Slab Soil Vapor Results

Former Kast Property

Carson, California

Residential Properties Sampled Through August 31, 2013

Page 23 of 235

Oxygen

Oxygen/Argon

Carbon Dioxide

AcetoneN

aphthaleneEthanol

2-Butanone (M

ethyl Ethyl Ketone)

ChloroformTetrachloro-

etheneToluene

BenzeneFreon 12

Methane

HeliumCarbon

DisulfideM

OL %

MO

L %M

OL %

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

MO

L %M

OL %

UG

/M3

100.00%100.00%

92.56%52.63%

49.98%18.72%

17.61%16.54%

8.00%7.84%

7.80%6.94%

6.17%5.34%

4.80%Sam

ple IDAddress

Sample D

ateSam

ple Time

Location

AnalyteU

nitsFrequency of D

etection

P24619SVH24619 PAN

AMA AVE

2010-04-2714:34

House17

3.792

< 5.961

14< 5.5

< 7.6< 4.2

3.8< 5.5

< 0.00041< 0.21

< 3.5P24619SVB

24619 PANAM

A AVE2010-04-27

15:08Back

183.1

23< 6.3

< 9< 3.5

< 5.8< 8.1

< 4.55.9

< 5.9< 0.00048

< 0.24< 3.7

P24619SVBD24619 PAN

AMA AVE

2010-04-2715:08

Back18

3.145

< 6.3< 9

18< 5.8

< 8.1< 4.5

< 3.8< 5.9

< 0.00024< 0.12

< 3.7P24619SVF

24619 PANAM

A AVE2010-04-27

15:58Front

211.2

140< 6.3

166.9

< 5.8< 8.1

< 4.519

< 5.9< 0.00048

< 0.24< 3.7

P24619SVH24619 PAN

AMA AVE

2010-05-2513:59

House18

3.614

6.8 J< 9.1

< 3.6< 5.9

< 8.2< 4.6

< 3.9< 6

< 0.000240.38

< 3.8P24619SVH

24619 PANAM

A AVE2010-10-11

14:30House

164.2

14< 1.4

< 9.3< 3.6

< 6< 8.4

< 4.6< 3.9

< 6.1< 0.00025

0.13< 3.8

P24619SVF24619 PAN

AMA AVE

2010-10-1115:09

Front19

1.214

< 1.4< 9

3.6< 5.8

< 8.1< 4.5

< 3.8< 5.9

< 0.00024< 0.12

< 3.7P24619SVB

24619 PANAM

A AVE2010-10-11

15:57Back

154.4

17< 1.4

< 9.1< 3.6

< 5.9< 8.2

< 4.6< 3.9

< 6< 0.00024

< 0.12< 3.8

P24619SVBS24619 PAN

AMA AVE

2010-10-1115:57

Back17.2

4.7218

< 1.3< 17

< 17< 1.7

< 1.71.8

< 1.72.2

< 0.16< 17

P24619SVF24619 PAN

AMA AVE

2011-02-1114:43

Front20

0.7814

0.4 J, b< 9

< 3.5< 5.8

< 8.1< 4.5

< 3.8< 5.9

< 0.00024< 0.12

< 3.7P24619SVB

24619 PANAM

A AVE2011-02-11

15:10Back

182.7

272.4 J, b

163.5

< 5.8< 8.1

9.7< 3.8

< 5.9< 0.00024

< 0.12< 3.7

P24619SVHA24619 PAN

AMA AVE

2011-12-0815:10

House20

1.822

< 0.27< 5.7

14< 3.7

< 5.2< 2.9

< 2.4< 3.8

< 0.00015< 0.076

< 9.5P24619SVF

24619 PANAM

A AVE2011-12-08

15:39Front

200.89

150.31 J, b

< 6.2< 9.7

< 4< 5.6

< 3.1< 2.6

< 4< 0.00016

< 0.082< 10

P24619SVFS24619 PAN

AMA AVE

2011-12-0815:39

Front21.5

0.986< 18 U

< 1.1 U< 18 U

< 18 U< 1.8 U

< 1.8 U< 1.8 U

< 1.8 U2.1

< 0.17 U< 18 U

P24619SVB24619 PAN

AMA AVE

2011-12-0816:09

Back18

3.814

0.46 J, b< 5.8

< 9.1< 3.8

< 5.23.4

< 2.5< 3.8

< 0.00016< 0.078

< 9.6P24619SVBS

24619 PANAM

A AVE2011-12-08

16:09Back

18.44.06

< 17 U< 0.98 U

< 17 U< 17 U

< 1.7 U< 1.7 U

< 1.7 U< 1.7 U

2< 0.15 U

< 17 UR24619SVF

24619 RAVENN

A AVE2010-08-30

13:40Front

200.31

152.2 J

9.4< 3.7

< 6.2< 8.5

< 4.7< 4

< 6.2< 0.00025

< 0.13< 3.9

R24619SVB24619 RAVEN

NA AVE

2010-08-3014:24

Back19

0.8619

< 1.4< 9.2

< 3.6< 6

21< 4.6

< 3.9< 6

< 0.00024< 0.12

< 3.8R24619SVBD

24619 RAVENN

A AVE2010-08-30

14:24Back

190.85

20< 1.8

< 12< 4.7

< 7.820

< 6< 5.1

< 7.9< 0.00024

< 0.12< 5

R24619SVF24619 RAVEN

NA AVE

2013-03-0109:58

Front21

0.16< 29

3.3 J, b< 9.2

< 14< 5.9

< 8.2< 4.6

< 3.9< 6

< 0.00024< 0.12

< 15R24619SVFS

24619 RAVENN

A AVE2013-03-01

09:58Front

21.8< 0.18 U

< 17 U< 0.7 U

< 17 U< 17 U

< 1.7 U< 1.7 U

< 1.7 U< 1.7 U

2.7< 0.18 U

< 17 UR24619SVB

24619 RAVENN

A AVE2013-03-01

10:28Back

200.66

< 281.7 J, b

< 8.8< 14

< 5.710

5.1 j< 3.7

< 5.8< 0.00023

< 0.12< 14

R24619SVBS24619 RAVEN

NA AVE

2013-03-0110:28

Back21.2

0.69817

< 0.7 U< 17 U

< 17 U< 1.7 U

9.72.9 j

< 1.7 U2.8

< 0.18 U< 17 U

R24619SVHA24619 RAVEN

NA AVE

2013-03-1509:41

House21

0.3632

2.1 J, b< 8.8

180< 5.7

1514

< 3.7< 5.8

< 0.000240.16

< 14R24619SVHA

24619 RAVENN

A AVE2013-07-19

14:47House

200.76

< 261.1 J, b

< 8.1< 13

< 5.319

< 4.1< 3.4

< 5.3< 0.00022

< 0.11< 13

R24619SVB24619 RAVEN

NA AVE

2013-07-1914:49

Back18

1.655

1.1 J, b< 8.8

< 14< 5.7

17< 4.4

< 3.7< 5.8

< 0.00023< 0.12

< 14R24619SVF

24619 RAVENN

A AVE2013-07-19

15:24Front

200.4

2101.4 J, b

< 9.1< 14

< 5.9< 8.2

< 4.6< 3.9

< 6< 0.00024

< 0.12< 15

M24622SVH

24622 MARBELLA AVE

2010-05-2813:48

House20

0.676

< 4< 8.7

15< 5.6

< 7.8< 4.4

< 3.7< 5.7

< 0.00023< 0.12

< 3.6M

24622SVB24622 M

ARBELLA AVE2010-05-28

14:26Back

21< 0.022

23< 3.9

< 8.43.7

12< 7.6

< 4.2< 3.6

< 5.5< 0.00022

< 0.1112

M24622SVG

24622 MARBELLA AVE

2010-05-2815:27

Garage

144.7

13< 4

< 8.7< 3.4

< 5.6< 7.8

< 4.3< 3.7

< 5.7< 0.00023

< 0.12< 3.6

M24622SVH

24622 MARBELLA AVE

2012-11-1609:57

House16

3.3< 27

< 0.55< 8.4

< 13< 5.5

< 7.6< 4.2

< 3.6< 5.5

< 0.00022< 0.11

< 14M

24622SVG24622 M

ARBELLA AVE2012-11-16

10:05G

arage15

6.8< 28

< 0.58< 8.8

< 14< 5.7

< 7.9< 4.4

< 3.7< 5.8

< 0.00023< 0.12

< 14M

24622SVB24622 M

ARBELLA AVE2012-11-16

10:41Back

210.63

< 27< 0.55

< 8.4< 13

< 5.5< 7.6

< 4.2< 3.6

< 5.5< 0.00022

< 0.11< 14

M24622SVB

24622 MARBELLA AVE

2013-06-0709:45

Back21

0.47< 28

< 2.6< 8.9

< 14< 5.8

< 8< 4.4

< 3.8< 5.8

< 0.00024< 0.12

< 15M

24622SVBS24622 M

ARBELLA AVE2013-06-07

09:45Back

21.60.471

< 20 U< 0.72 U

< 20 U< 20 U

< 2 U< 2 U

< 2 U< 2 U

2< 0.16 U

< 20 UM

24622SVH24622 M

ARBELLA AVE2013-06-07

09:47House

192.7

< 27< 2.5

< 8.7< 14

< 5.6< 7.8

< 4.4< 3.7

< 5.7< 0.00023

< 0.12< 14

M24622SVG

24622 MARBELLA AVE

2013-06-0710:09

Garage

165.8

< 28< 2.6

< 8.9< 14

< 5.8< 8

< 4.4< 3.8

< 5.8< 0.00024

< 0.12< 15

M24622SVG

S24622 M

ARBELLA AVE2013-06-07

10:09G

arage15.7

6.11< 20 U

< 0.72 U< 20 U

< 20 U< 2 U

3.8< 2 U

< 2 U< 2 U

< 0.16 U< 20 U

N24622SVB

24622 NEPTU

NE AVE

2010-08-1909:33

Back9.8

7.126

5.2 J, b< 8.7

< 3.411

< 7.8< 4.3

< 3.7< 5.7

0.00024< 0.12

< 3.6N

24622SVH24622 N

EPTUN

E AVE2010-08-19

10:18House

200.75

44< 1.3

< 8.88.1

< 5.7< 7.9

< 4.47

< 5.8< 0.00023

< 0.12< 3.6

N24622SVF

24622 NEPTU

NE AVE

2010-08-1911:03

Front20

0.07224

1.5 J, b10

< 3.66.3

< 8.2< 4.6

< 3.9< 6

< 0.00024< 0.12

4N

24622SVF24622 N

EPTUN

E AVE2011-02-01

09:40Front

210.14

< 110.53 J, b

< 8.7< 3.4

12< 7.8

< 4.3< 3.7

< 5.7< 0.00023

< 0.12< 3.6

N24622SVB

24622 NEPTU

NE AVE

2011-02-0110:25

Back17

1.2< 12

< 0.36< 9.5

< 3.7< 6.2

< 8.5< 4.7

< 4< 6.2

0.00056< 0.13

< 3.9N

24622SVH24622 N

EPTUN

E AVE2011-02-01

11:06House

200.5

430.99 J, b

165.4

< 5.9< 8.2

< 4.6< 3.9

< 6< 0.00024

< 0.12< 3.8

N24622SVH

24622 NEPTU

NE AVE

2012-03-3010:57

House20

0.5620

3.1 J, b< 5.9

< 9.2< 3.8

< 5.3< 2.9

< 2.5< 3.8

< 0.00016< 0.078

< 9.7N

24622SVF24622 N

EPTUN

E AVE2013-08-21

10:21Front

201

392 J, b

< 9.2< 14

< 5.9< 8.2

< 4.6< 3.9

< 6< 0.00024

< 0.12< 15

N24622SVFS

24622 NEPTU

NE AVE

2013-08-2110:21

Front21

1.135 M

1< 0.76 U

< 21 U< 21 U

4.3< 2.1 U

< 2.1 U< 2.1 U

< 2.1 U< 0.17 U

< 21 UN

24622SVB24622 N

EPTUN

E AVE2013-08-21

10:40Back

146.5

< 301.5 J, b

< 9.6< 15

28< 8.6

< 4.8< 4.1

< 6.3< 0.00026

< 0.13< 16

N24622SVHA

24622 NEPTU

NE AVE

2013-08-2312:34

House20

0.08159

2.9 J, b13

< 14< 5.8

< 8.1< 4.5

< 3.8< 5.9

< 0.00024< 0.12

< 15M

24623SVH24623 M

ARBELLA AVE2010-08-03

13:50House

190.54

150 b< 6.2

1211

< 5.7< 7.9

< 4.4130

< 5.8< 0.00023

< 0.12< 3.6

M24623SVG

24623 MARBELLA AVE

2010-08-0314:07

Garage

156.1

22 b< 6.3

< 94.2

< 5.8< 8.1

< 4.5< 3.8

< 5.9< 0.00024

< 0.12< 3.7

M24623SVG

D24623 M

ARBELLA AVE2010-08-03

14:07G

arage16

6.222 b

< 6.4< 9.1

< 3.6< 5.9

< 8.2< 4.6

< 3.9< 6

< 0.00024< 0.12

< 3.8

Page 256: Table Proposed Cleanup Levels Groundwater · 10/21/2013  · Table 04 Summery of PrsllMnery Cost ES11motee for Soleening Feasibility Study Former Kest Property Carson, CA GeotFnlenGOneullanle

Table B-2Sub-Slab Soil Vapor Results

Former Kast Property

Carson, California

Residential Properties Sampled Through August 31, 2013

Page 24 of 235

Oxygen

Oxygen/Argon

Carbon Dioxide

AcetoneN

aphthaleneEthanol

2-Butanone (M

ethyl Ethyl Ketone)

ChloroformTetrachloro-

etheneToluene

BenzeneFreon 12

Methane

HeliumCarbon

DisulfideM

OL %

MO

L %M

OL %

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

MO

L %M

OL %

UG

/M3

100.00%100.00%

92.56%52.63%

49.98%18.72%

17.61%16.54%

8.00%7.84%

7.80%6.94%

6.17%5.34%

4.80%Sam

ple IDAddress

Sample D

ateSam

ple Time

Location

AnalyteU

nitsFrequency of D

etection

M24623SVB

24623 MARBELLA AVE

2010-08-0314:37

Back19

0.9215 b

< 6.519

< 3.6< 6

< 8.4< 4.6

< 3.9< 6.1

< 0.00025< 0.12

5M

24623SVG24623 M

ARBELLA AVE2011-01-28

15:15G

arage18

2.113

0.94 J, b< 9.1

< 3.6< 5.9

< 8.2< 4.6

< 3.9< 6

< 0.00024< 0.12

< 3.8M

24623SVH24623 M

ARBELLA AVE2011-01-28

15:21House

200.47

< 110.94 J, b

< 8.6< 3.4

< 5.6< 7.8

< 4.3< 3.6

< 5.7< 0.00023

< 0.11< 3.6

M24623SVB

24623 MARBELLA AVE

2011-01-2815:53

Back21

0.45< 12

0.96 J, b< 9.5

< 3.7< 6.2

< 8.5< 4.7

< 4< 6.2

< 0.00025< 0.13

< 3.9N

24623SVH24623 N

EPTUN

E AVE2010-06-11

13:58House

180.59

793.1 J, b

2125

< 5.7< 7.9

< 4.4< 3.7

< 5.8< 0.00023

< 0.12< 3.6

N24623SVF

24623 NEPTU

NE AVE

2010-06-1114:50

Front18

1.916

< 2.4< 9

< 3.56.5

< 8.1< 4.5

< 3.8< 5.9

< 0.00024< 0.12

< 3.7N

24623SVB24623 N

EPTUN

E AVE2011-02-16

09:43Back

173

121.3 J, b

< 8.6< 3.4

< 5.6< 7.7

5< 3.6

< 5.6< 0.00023

< 0.11< 3.6

N24623SVF

24623 NEPTU

NE AVE

2011-02-1610:20

Front20

1< 11

0.85 J, b< 9.1

< 3.6< 5.9

< 8.2< 4.6

< 3.9< 6

< 0.00024< 0.12

< 3.8N

24623SVFD24623 N

EPTUN

E AVE2011-02-16

10:20Front

201

< 115.4 J, b

< 9.1< 3.6

< 5.9< 8.2

8.2< 3.9

< 6< 0.00024

< 0.12< 3.8

N24623SVH

24623 NEPTU

NE AVE

2011-02-1611:08

House20

1.6< 11

0.86 J, b14

< 3.5< 5.8

< 8110

< 3.8< 5.9

< 0.00024< 0.12

< 3.7N

24623SVF24623 N

EPTUN

E AVE2011-03-31

10:49Front

200.4

< 110.55 J, b

< 8.8< 14

< 5.7< 7.9

< 4.4< 3.7

< 5.8< 0.00023

< 0.12< 14

N24623SVFS

24623 NEPTU

NE AVE

2011-03-3110:49

Front21.3

0.457< 18

< 1< 18

< 18< 1.8

< 1.8< 1.8

< 1.82.2

< 0.17< 18

N24623SVH

24623 NEPTU

NE AVE

2011-03-3111:07

House20

1.419

0.35 J, b< 8.8

< 14< 5.7

< 7.9< 4.4

< 3.7< 5.8

< 0.00023< 0.12

< 14N

24623SVB24623 N

EPTUN

E AVE2011-03-31

11:39Back

152.5

< 11< 0.33 U

J< 8.6

< 14< 5.6

< 7.8< 4.3

< 3.6< 5.7

< 0.00023< 0.11

< 14N

24623SVBS24623 N

EPTUN

E AVE2011-03-31

11:39Back

16.42.9

< 18< 1.1

< 18< 18

< 1.8< 1.8

< 1.8< 1.8

2.4< 0.17

< 18M

24627SVH24627 M

ARBELLA AVE2010-07-19

13:48House

201.2

247.2 J

< 8.84.1

< 5.7< 7.9

< 4.4< 3.7

< 5.80.00031

0.176.2

M24627SVG

24627 MARBELLA AVE

2010-07-1914:24

Garage

201.6

32< 6.2

10< 3.4

< 5.710

< 4.4< 3.7

< 5.8< 0.00023

< 0.12< 3.6

M24627SVB

24627 MARBELLA AVE

2010-07-1915:05

Back20

0.5739

< 6.714

5.8< 6.2

< 8.6< 4.8

< 4< 6.2

< 0.00025< 0.13

9.7M

24627SVH24627 M

ARBELLA AVE2012-05-11

14:43House

201

< 18< 2.9 PF

< 5.8< 9.1

< 3.8< 5.2

< 2.9< 2.5

< 3.8< 0.00016

0.085< 9.6

M24627SVG

24627 MARBELLA AVE

2012-05-1114:49

Garage

200.9

< 19< 3.1 PF

< 6.2< 9.7

< 4< 5.6

< 3.1< 2.6

< 4< 0.00016

0.084< 10

M24627SVG

D24627 M

ARBELLA AVE2012-05-11

14:49G

arage20

0.9< 19

< 3.1 PF< 6.2

< 9.7< 4

< 5.6< 3.1

< 2.6< 4

< 0.000160.099

< 10M

24627SVB24627 M

ARBELLA AVE2012-05-11

15:21Back

200.86

< 19< 3.1 PF

< 6.2< 9.7

< 4< 5.6

< 3.1< 2.6

< 4< 0.00016

< 0.082< 10

M24628SVF

24628 MARBELLA AVE

2010-12-0313:44

Front17

1.432

1.6 J, b< 8.8

< 3.4< 5.7

< 7.9< 4.4

< 3.7< 5.8

< 0.00023< 0.12

< 3.6M

24628SVFD24628 M

ARBELLA AVE2010-12-03

13:44Front

171.4

240.54 J, b

< 94.1

< 5.8< 8.1

< 4.5< 3.8

< 5.9< 0.00024

< 0.12< 3.7

M24628SVB

24628 MARBELLA AVE

2010-12-0314:31

Back15

3.115

< 0.34< 9

< 3.5< 5.8

< 8.1< 4.5

< 3.8< 5.9

< 0.00024< 0.12

< 3.7M

24628SVH24628 M

ARBELLA AVE2011-06-23

10:40House

118.1

< 111.2 J, b

< 8.8< 14

< 5.7< 7.9

< 4.4< 3.7

< 5.8< 0.00023

< 0.12< 14

M24628SVHS

24628 MARBELLA AVE

2011-06-2310:40

House12.1

8.78< 18 U

< 1 U< 18 U

< 18 U< 1.8 U

1.9< 1.8 U

< 1.8 U1.8

< 0.16 U< 18 U

M24628SVB

24628 MARBELLA AVE

2011-06-2311:24

Back13

9< 11

< 0.34< 8.8

< 14< 5.7

< 7.9< 4.4

< 3.7< 5.8

< 0.00023< 0.12

< 14M

24628SVBS24628 M

ARBELLA AVE2011-06-23

11:24Back

13.610.1

< 18 U< 1 U

< 18 U< 18 U

< 1.8 U< 1.8 U

< 1.8 U< 1.8 U

1.9< 0.16 U

< 18 UM

24628SVF24628 M

ARBELLA AVE2011-06-23

12:12Front

191.9

< 11< 0.34

< 8.8< 14

< 5.7< 7.9

< 4.4< 3.7

< 5.8< 0.00047

< 0.24< 14

M24628SVFD

24628 MARBELLA AVE

2011-06-2312:12

Front18

1.9< 11

< 0.34< 8.8

< 14< 5.7

< 7.9< 4.4

< 3.7< 5.8

< 0.00023< 0.12

< 14M

24628SVF24628 M

ARBELLA AVE2011-10-27

13:09Front

182.3

110.47 J, b

< 6.1< 9.5

< 3.9< 5.5

< 3< 2.6

< 4< 0.00016

< 0.08< 10

M24628SVFS

24628 MARBELLA AVE

2011-10-2713:09

Front18.5

2.48< 18 U

< 1 U< 18 U

< 18 U< 1.8 U

< 1.8 U< 1.8 U

< 1.8 U2.1

< 0.16 U< 18 U

M24628SVH

24628 MARBELLA AVE

2011-10-2714:12

House10

1010

0.51 J, b< 6.1

< 9.5< 3.9

< 5.5< 3

< 2.6< 4

< 0.00016< 0.08

< 10M

24628SVHS24628 M

ARBELLA AVE2011-10-27

14:12House

11.511.2

< 18 U< 1 U

< 18 U< 18 U

< 1.8 U< 1.8 U

5.4< 1.8 U

2< 0.17 U

< 18 UM

24628SVB24628 M

ARBELLA AVE2011-10-27

14:55Back

155.1

8.40.49 J, b

< 5.8< 9.1

< 3.8< 5.2

< 2.9< 2.5

< 3.8< 0.00016

< 0.078< 9.6

M24628SVBS

24628 MARBELLA AVE

2011-10-2714:55

Back15.9

5.66< 17 U

< 1 U< 17 U

< 17 U< 1.7 U

< 1.7 U< 1.7 U

< 1.7 U2.1

< 0.16 U< 17 U

N24628SVH

24628 NEPTU

NE AVE

2010-10-2713:02

House21

0.36290

< 1.443

46320

< 8.1< 4.5

< 3.8< 5.9

< 0.00024< 0.12

< 3.7N

24628SVG2

24628 NEPTU

NE AVE

2010-10-2713:35

Garage

21< 0.023

30< 1.3

323.4

940< 7.7

< 4.2< 3.6

< 5.6< 0.00023

< 0.11< 3.5

N24628SVH

24628 NEPTU

NE AVE

2013-02-0714:34

House21

0.3838

3.2 J, b< 9.3

< 1410

< 8.4< 4.6

< 3.9< 6.1

< 0.000250.13

< 15N

24628SVBA24628 N

EPTUN

E AVE2013-02-07

14:35Back

22< 0.053

1401.8 J, b

< 20< 31

320< 18

12< 8.5

< 13< 0.00053

< 0.26< 33

N24628SVG

224628 N

EPTUN

E AVE2013-02-07

15:12G

arage21

0.45< 28

1.7 J, b< 8.8

< 14440

< 7.9< 4.4

< 3.7< 5.8

< 0.00023< 0.12

< 14N

24628SVBA24628 N

EPTUN

E AVE2013-06-19

15:03Back

210.16

371.4 J, b

< 8.6< 13

720< 7.7

< 4.3< 3.6

< 5.6< 0.00023

< 0.11< 14

N24628SVBAD

24628 NEPTU

NE AVE

2013-06-1915:03

Back21

0.1628

0.98 J, b< 8.5

< 13720

< 7.7< 4.2

< 3.6< 5.6

< 0.00023< 0.11

< 14N

24628SVH24628 N

EPTUN

E AVE2013-06-19

15:05House

200.53

731.4 J, b

< 8.4< 13

94< 7.6

< 4.2< 3.6

< 5.5< 0.00022

< 0.11< 14

N24628SVG

224628 N

EPTUN

E AVE2013-06-19

15:38G

arage20

0.5832

1 J, b< 8.7

< 141000

< 7.9< 4.4

< 3.7< 5.7

< 0.00029< 0.14

< 14N

24629SVH24629 N

EPTUN

E AVE2010-07-09

13:57House

155.3

96< 2.4 Q

3113

< 5.9< 8.2

< 4.6< 3.9

8.90.00031

< 0.12< 3.8

N24629SVF

24629 NEPTU

NE AVE

2010-07-0915:14

Front19

1.959

< 2.3 Q12

8.7< 5.7

< 7.9< 4.4

< 3.7< 5.8

< 0.00023< 0.12

< 3.6N

24629SVB24629 N

EPTUN

E AVE2010-07-09

15:32Back

181.3

3202.7 J,Q

1127

< 5.7< 7.9

< 4.4230

< 5.8< 0.00023

< 0.12< 3.6

N24629SVB

24629 NEPTU

NE AVE

2011-02-0315:16

Back20

1.611

< 1.7< 8.8

< 3.4< 5.7

< 7.9< 4.4

< 3.7< 5.8

< 0.00023< 0.12

< 3.6N

24629SVH24629 N

EPTUN

E AVE2011-02-03

15:24House

165.1

21< 1.8

< 9< 3.5

< 5.8< 8.1

< 4.5< 3.8

< 5.90.00028

< 0.123.8

N24629SVF

24629 NEPTU

NE AVE

2011-02-0315:57

Front21

0.97< 11

< 1.8< 9

< 3.5< 5.8

< 8.1< 4.5

< 3.8< 5.9

< 0.00024< 0.12

< 3.7

Page 257: Table Proposed Cleanup Levels Groundwater · 10/21/2013  · Table 04 Summery of PrsllMnery Cost ES11motee for Soleening Feasibility Study Former Kest Property Carson, CA GeotFnlenGOneullanle

Table B-2Sub-Slab Soil Vapor Results

Former Kast Property

Carson, California

Residential Properties Sampled Through August 31, 2013

Page 25 of 235

Oxygen

Oxygen/Argon

Carbon Dioxide

AcetoneN

aphthaleneEthanol

2-Butanone (M

ethyl Ethyl Ketone)

ChloroformTetrachloro-

etheneToluene

BenzeneFreon 12

Methane

HeliumCarbon

DisulfideM

OL %

MO

L %M

OL %

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

MO

L %M

OL %

UG

/M3

100.00%100.00%

92.56%52.63%

49.98%18.72%

17.61%16.54%

8.00%7.84%

7.80%6.94%

6.17%5.34%

4.80%Sam

ple IDAddress

Sample D

ateSam

ple Time

Location

AnalyteU

nitsFrequency of D

etection

N24632SVF

24632 NEPTU

NE AVE

2009-10-0213:16

Front21

< 0.02439

< 3< 9

7.79.7

< 8.1< 4.5

< 3.8< 5.9

< 0.00024< 0.12

6.7N

24632SVB24632 N

EPTUN

E AVE2009-10-02

14:09Back

200.58

87< 3.2

1211

52< 8.6

< 4.8< 4.1

< 6.3< 0.00026

< 0.13< 4

N24632SVF

24632 NEPTU

NE AVE

2010-07-2010:44

Front20

0.7737 b

< 6.211

< 3.4< 5.7

< 7.9< 4.4

4.3< 5.8

< 0.00023< 0.12

< 3.6N

24632SVG24632 N

EPTUN

E AVE2010-08-24

08:55G

arage20

0.514

< 1.4< 8.9

< 3.5< 5.8

28< 4.5

< 3.8< 5.9

< 0.00024< 0.12

< 3.7N

24632SVB24632 N

EPTUN

E AVE2010-08-24

09:39Back

181.6

32< 1.4

< 9.1< 3.6

16< 8.2

< 4.6< 3.9

< 6< 0.00024

< 0.12< 3.8

N24632SVF

24632 NEPTU

NE AVE

2013-02-0812:50

Front20

0.42< 27

2.1 J, b< 8.4

< 13< 5.5

< 7.6< 4.2

< 3.6< 5.5

< 0.00022< 0.11

< 14N

24632SVG24632 N

EPTUN

E AVE2013-02-08

13:28G

arage21

0.22< 26

1.2 J, b< 8.3

< 13< 5.4

< 7.5< 4.1

< 3.5< 5.4

< 0.00022< 0.11

< 14N

24632SVBA24632 N

EPTUN

E AVE2013-08-09

09:56Back

9.5< 0.026

25011 J, b

1177

< 6.2< 8.6

206.3

< 6.30.58

< 0.1326

N24632SVBAS

24632 NEPTU

NE AVE

2013-08-0909:56

Back9.62

< 0.17 U210

5.5< 21 U

72< 2.1 U

< 2.1 U16

5.1< 2.1 U

0.521< 21 U

N24632SVF

24632 NEPTU

NE AVE

2013-08-0910:04

Front20

1.4< 30

2.2 J, b< 9.5

< 15< 6.2

< 8.5< 4.7

< 4< 6.2

< 0.00025< 0.13

< 16N

24632SVG24632 N

EPTUN

E AVE2013-08-09

10:23G

arage21

0.49< 27

1.4 J, b< 8.5

< 13< 5.5

14< 4.2

< 3.6< 5.6

< 0.00023< 0.11

< 14M

24700SVH24700 M

ARBELLA AVE2010-06-09

09:02House

152.8

41< 2.4

1512 b

< 5.8< 8

< 4.5< 3.8

< 5.9< 0.00024

0.21< 3.7

M24700SVHS

24700 MARBELLA AVE

2010-06-0909:02

House19.1

2.67< 17

0.97 J< 17

< 17< 1.7

2.7< 1.7

< 1.72

< 0.16< 17

M24700SVF

24700 MARBELLA AVE

2010-06-0909:38

Front16

2.534

< 2.4< 9

10 b< 5.8

< 8.1< 4.5

< 3.8< 5.9

< 0.00024< 0.12

< 3.7M

24700SVB24700 M

ARBELLA AVE2010-06-09

10:24Back

122.7

4103.1 J

1112 b

< 5.7< 8

< 4.418

< 5.8< 0.12

< 3.6M

24700SVB24700 M

ARBELLA AVE2010-07-15

14:27Back

118.3

210 b< 2.7

28 b25

11< 9.2

< 5.126

< 6.72.4

< 0.146.5

M24700SVF

24700 MARBELLA AVE

2010-07-1515:22

Front17

3.639 b

< 2.38.8 b

5< 5.6

< 7.8< 4.3

< 3.7< 5.7

< 0.00023< 0.12

9.9M

24700SVH24700 M

ARBELLA AVE2010-07-15

16:12House

183

16 b< 2.3

< 8.6< 3.4

< 5.6< 7.7

< 4.3< 3.6

< 5.60.00044

0.23< 3.6

M24700SVF

24700 MARBELLA AVE

2011-10-2010:29

Front13

5.98.9

0.66 J, b< 6.7

< 10< 4.3

< 6< 3.4

< 2.8< 4.4

< 0.00016< 0.078

< 11M

24700SVB24700 M

ARBELLA AVE2011-10-20

11:10Back

182.4

110.92 J, b

< 7.6< 12

< 4.9< 6.8

< 3.8< 3.2

< 5< 0.00018

0.12< 12

M24700SVH

24700 MARBELLA AVE

2011-10-2015:18

House16

4.710

0.55 J, b< 6.1

< 9.5< 3.9

< 5.5< 3

< 2.6< 4

< 0.000150.089

< 10M

24700SVHD24700 M

ARBELLA AVE2011-10-20

15:18House

164.7

9.85.9 J, b

< 6.1< 9.5

< 3.9< 5.5

< 3< 2.6

< 4< 0.00015

0.087< 10

M24700SVH

24700 MARBELLA AVE

2013-03-1514:45

House12

6.832

1.2 J, b< 8.9

< 14< 5.8

< 8< 4.5

< 3.8< 5.9

< 0.00024< 0.12

< 15M

24700SVB24700 M

ARBELLA AVE2013-03-15

14:47Back

201.6

381.1 J, b

< 8.5< 13

34< 7.7

< 4.2< 3.6

< 5.6< 0.00023

< 0.11< 14

M24700SVBS

24700 MARBELLA AVE

2013-03-1514:47

Back20.1

1.64< 24 U

< 1 U< 24 U

< 24 U31

< 2.4 U2.7

< 2.4 U< 2.4 U

< 0.2 U< 24 U

M24700SVF

24700 MARBELLA AVE

2013-03-1515:23

Front14

5.7< 26

1 J, b< 8.4

< 13< 5.4

< 7.5< 4.2

< 3.5< 5.5

< 0.00022< 0.11

< 14M

24700SVFD24700 M

ARBELLA AVE2013-03-15

15:23Front

145.8

< 270.88 J, b

< 8.5< 13

< 5.5< 7.6

< 4.2< 3.6

< 5.6< 0.00022

< 0.11< 14

P24702SVH24702 PAN

AMA AVE

2010-06-0309:09

House21

< 0.02230

< 3.989

4.8< 5.5

< 7.6< 4.2

3.8120

< 0.00022< 0.11

< 3.5P24702SVG

24702 PANAM

A AVE2010-06-03

09:56G

arage21

0.1612

< 3.9< 8.4

< 3.3< 5.5

< 7.6< 4.2

< 3.650

< 0.00022< 0.11

< 3.5P24702SVG

S24702 PAN

AMA AVE

2010-06-0309:56

Garage

21.90.184

34< 1.3

< 17< 17

< 1.7< 1.7

< 1.7< 1.7

2.3< 0.15

< 17P24702SVB

24702 PANAM

A AVE2010-06-03

10:38Back

20< 0.023

38< 4

< 8.84.9

< 5.7< 7.9

< 4.4< 3.7

24< 0.00023

< 0.12< 3.6

P24702SVG24702 PAN

AMA AVE

2011-02-2415:30

Garage

210.22

600.58 J, b

< 8.2< 13

< 5.3< 7.4

36< 3.5

< 5.4< 0.00022

< 0.11< 14

P24702SVH24702 PAN

AMA AVE

2011-02-2415:34

House21

0.03938

0.71 J, b< 8.9

< 14< 5.8

< 8< 4.5

< 3.8< 5.9

0.00024< 0.12

< 15P24702SVB

24702 PANAM

A AVE2011-02-24

16:20Back

210.17

12< 0.34

< 8.9< 14

< 5.8< 8

< 4.5< 3.8

< 5.9< 0.00024

< 0.12< 15

P24702SVB24702 PAN

AMA AVE

2013-06-1209:46

Back20

1.3< 27

< 2.5< 8.7

< 14< 5.6

< 7.8< 4.3

< 3.7< 5.7

< 0.00023< 0.12

< 14P24702SVBS

24702 PANAM

A AVE2013-06-12

09:46Back

20.81.25

< 20 U< 0.73 U

< 20 U< 20 U

< 2 U< 2 U

< 2 U< 2 U

< 2 U< 0.16 U

< 20 UP24702SVH

24702 PANAM

A AVE2013-06-12

09:56House

190.07

42< 2.6

< 8.9< 14

< 5.8< 8

< 4.4< 3.8

< 5.8< 0.00024

< 0.12< 15

P24702SVG24702 PAN

AMA AVE

2013-06-1210:18

Garage

210.35

< 27< 2.5

< 8.7< 14

< 5.6< 7.8

< 4.3< 3.7

< 5.7< 0.00023

< 0.12< 14

P24702SVGS

24702 PANAM

A AVE2013-06-12

10:18G

arage21.8

0.342< 20 U

< 0.72 U< 20 U

< 20 U< 2 U

< 2 U< 2 U

< 2 U< 2 U

< 0.16 U< 20 U

M24703SVF

24703 MARBELLA AVE

2010-03-2911:37

Front21

< 0.02460

4.3 J, b24

25< 5.8

< 8.1< 4.5

< 3.8< 5.9

< 0.00024< 0.12

< 3.7M

24703SVH24703 M

ARBELLA AVE2010-03-29

12:58House

200.6

564.1 J, b

466.7

7.3< 7.9

< 4.4< 3.7

< 5.8< 0.00023

< 0.12< 3.6

M24703SVB

24703 MARBELLA AVE

2010-03-2913:53

Back21

0.1612

5.3 J, b< 8.9

< 3.515

< 87.8

< 3.8< 5.9

< 0.00024< 0.12

< 3.7M

24703SVH24703 M

ARBELLA AVE2010-08-23

09:27House

172.6

14< 1.4

< 8.9< 3.5

< 5.8< 8

< 4.5< 3.8

< 5.9< 0.00024

< 0.12< 3.7

M24703SVF

24703 MARBELLA AVE

2010-08-2310:15

Front20

0.28< 11

< 1.3< 8.8

< 3.4< 5.7

< 7.9< 4.4

< 3.7< 5.8

< 0.00023< 0.12

< 3.6M

24703SVB24703 M

ARBELLA AVE2010-08-23

10:57Back

190.82

14< 1.4

17< 3.6

16< 8.2

< 4.6< 3.9

< 6< 0.00024

< 0.12< 3.8

M24703SVH

24703 MARBELLA AVE

2012-04-2014:49

House18

2.526

1.2 J, b< 6

< 9.3< 3.8

< 5.4< 3

< 2.5< 3.9

< 0.00022< 0.11

< 9.8M

24703SVB24703 M

ARBELLA AVE2012-04-20

15:21Back

200.68

< 180.83 J, b

< 5.8< 9.1

< 3.8< 5.2

< 2.9< 2.5

< 3.80.00021

< 0.1< 9.6

M24703SVBD

24703 MARBELLA AVE

2012-04-2015:21

Back20

0.67< 18

1.1 J, b< 5.8

< 9.1< 3.8

< 5.2< 2.9

< 2.5< 3.8

< 0.00021< 0.1

< 9.6M

24703SVF24703 M

ARBELLA AVE2012-04-20

15:47Front

230.24

204 J, b

< 5.8< 9.1

< 3.8< 5.2

< 2.9< 2.5

< 3.8< 0.00021

< 0.1< 9.6

M24703SVB

24703 MARBELLA AVE

2013-07-1109:37

Back21

0.54< 29

< 0.83< 9.3

< 14< 6

< 8.3< 4.6

< 3.9< 6.1

< 0.00025< 0.12

< 15M

24703SVBD24703 M

ARBELLA AVE2013-07-11

09:37Back

210.53

< 28< 0.81

< 9< 14

< 5.8< 8.1

< 4.5< 3.8

< 5.9< 0.00024

< 0.12< 15

M24703SVF

24703 MARBELLA AVE

2013-07-1109:45

Front21

0.84< 26

< 0.74< 8.3

< 13< 5.4

< 7.5< 4.2

< 3.5< 5.5

< 0.00022< 0.11

< 14

Page 258: Table Proposed Cleanup Levels Groundwater · 10/21/2013  · Table 04 Summery of PrsllMnery Cost ES11motee for Soleening Feasibility Study Former Kest Property Carson, CA GeotFnlenGOneullanle

Table B-2Sub-Slab Soil Vapor Results

Former Kast Property

Carson, California

Residential Properties Sampled Through August 31, 2013

Page 26 of 235

Oxygen

Oxygen/Argon

Carbon Dioxide

AcetoneN

aphthaleneEthanol

2-Butanone (M

ethyl Ethyl Ketone)

ChloroformTetrachloro-

etheneToluene

BenzeneFreon 12

Methane

HeliumCarbon

DisulfideM

OL %

MO

L %M

OL %

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

MO

L %M

OL %

UG

/M3

100.00%100.00%

92.56%52.63%

49.98%18.72%

17.61%16.54%

8.00%7.84%

7.80%6.94%

6.17%5.34%

4.80%Sam

ple IDAddress

Sample D

ateSam

ple Time

Location

AnalyteU

nitsFrequency of D

etection

M24703SVH

24703 MARBELLA AVE

2013-07-1110:16

House15

4.5170

0.92 J, b< 8.7

< 14< 5.7

< 7.9< 4.4

< 3.7< 5.7

< 0.00023< 0.12

< 14N

24703SVB24703 N

EPTUN

E AVE2009-09-22

08:48Back

163

< 13< 3.4

< 10< 4

< 6.6< 9.2

< 5.17

< 6.7< 0.00027

< 4.2N

24703SVF24703 N

EPTUN

E AVE2009-09-22

09:36Front

182.8

17< 3.1

< 9.3< 3.6

< 6< 8.4

< 4.7< 4

< 6.1< 0.00025

< 3.9N

24703SVFD24703 N

EPTUN

E AVE2009-09-22

09:36Front

182.8

199.9 J

< 9.24.5

< 6< 8.3

< 4.6< 3.9

< 6< 0.00024

< 3.8N

24703SVH24703 N

EPTUN

E AVE2010-11-03

14:04House

182.5

15< 1.3

< 8.8< 3.5

< 5.7< 8

< 4.4< 3.8

< 5.8< 0.00024

< 0.12< 3.6

N24703SVF

24703 NEPTU

NE AVE

2010-11-0314:54

Front17

3.822

< 1.4< 8.9

< 3.5< 5.8

< 8< 4.5

< 3.8< 5.9

< 0.00024< 0.12

< 3.7N

24703SVB24703 N

EPTUN

E AVE2010-11-03

15:45Back

191.8

< 12< 1.4

< 9.3< 3.6

< 6< 8.3

< 4.6< 3.9

< 6.1< 0.00025

< 0.12< 3.8

N24703SVBS

24703 NEPTU

NE AVE

2010-11-0315:45

Back20

2.08< 18

0.65 J< 18

< 18< 1.8

< 1.8< 1.8

< 1.82.1

< 0.16< 18

N24703SVB

24703 NEPTU

NE AVE

2013-04-2614:43

Back19

2.832

2.6 J, b< 9.6

< 15< 6.2

< 8.7< 4.8

< 4.1< 6.3

< 0.00026< 0.13

< 16N

24703SVH24703 N

EPTUN

E AVE2013-04-26

14:54House

201.6

271.6 J, b

< 8.4< 13

< 5.4< 7.5

< 4.2< 3.5

< 5.5< 0.00022

< 0.11< 14

N24703SVF

24703 NEPTU

NE AVE

2013-04-2615:16

Front20

1.860

1.9 J, b< 9.1

< 14< 5.9

< 8.2< 4.6

< 3.9< 6

< 0.00024< 0.12

< 15R24703SVH

24703 RAVENN

A AVE2010-10-11

09:26House

180.14

36< 1.4

< 93.7

< 5.8< 8.1

< 4.5< 3.8

< 5.9< 0.00024

< 0.12< 3.7

R24703SVG24703 RAVEN

NA AVE

2010-10-1110:14

Garage

180.12

28< 1.3

174.2

< 5.7< 7.9

< 4.4< 3.7

< 5.8< 0.00023

< 0.12< 3.6

R24703SVGS

24703 RAVENN

A AVE2010-10-11

10:14G

arage20.4

< 0.1521

1.4 J< 17

< 17< 1.7

4.5< 1.7

< 1.72.5

< 0.15< 17

R24703SVB24703 RAVEN

NA AVE

2010-10-1111:03

Back15

1.813

< 1.3< 8.8

< 3.4< 5.7

< 7.9< 4.4

< 3.7< 5.8

< 0.00023< 0.12

< 3.6R24703SVH

24703 RAVENN

A AVE2013-03-08

09:42House

201.6

< 284.1 J, b

< 8.9< 14

< 5.8< 8

< 4.4< 3.8

< 5.8< 0.00024

< 0.12< 15

R24703SVG24703 RAVEN

NA AVE

2013-03-0810:14

Garage

200.76

301.6 J, b

< 8.7< 14

< 5.6< 7.8

< 4.3< 3.7

< 5.7< 0.00023

< 0.12< 14

R24703SVGD

24703 RAVENN

A AVE2013-03-08

10:14G

arage20

0.7728

0.95 J, b< 8.9

< 14< 5.8

< 8< 4.4

< 3.8< 5.8

< 0.00024< 0.12

< 15R24703SVH

24703 RAVENN

A AVE2013-07-24

09:53House

191.5

400< 0.77

< 8.6< 14

< 5.6< 7.8

< 4.3< 3.6

< 5.7< 0.00023

< 0.11< 14

R24703SVB24703 RAVEN

NA AVE

2013-07-2410:06

Back17

5< 28

< 0.8< 9

< 147.7

< 8.18 j

< 3.8< 5.9

< 0.00024< 0.12

< 15R24703SVBD

24703 RAVENN

A AVE2013-07-24

10:06Back

175

< 28< 0.8

< 9< 14

8< 8.1

< 4.5< 3.8

< 5.9< 0.00024

< 0.12< 15

R24703SVG24703 RAVEN

NA AVE

2013-07-2410:25

Garage

201.3

4601.3 J, b

< 8.8< 14

< 5.7< 7.9

< 4.4< 3.7

< 5.8< 0.00023

< 0.12< 14

M24706SVB

24706 MARBELLA AVE

2011-01-3113:56

Back11

412

2.4 J, b< 8.7

< 3.410

< 7.8< 4.3

< 3.7< 5.7

< 0.00023< 0.12

< 3.6M

24706SVG24706 M

ARBELLA AVE2011-01-31

14:48G

arage6.6

8.3< 11

2.3 J, b< 9

< 3.5< 5.8

< 8.1< 4.5

< 3.8< 5.9

< 0.00024< 0.12

< 3.7M

24706SVH24706 M

ARBELLA AVE2011-01-31

16:20House

8.13.2

262.4 J, b

< 8.4< 3.3

< 5.5< 7.6

1316

< 5.53.8

< 0.11< 3.5

M24706SVH

24706 MARBELLA AVE

2011-09-1514:30

House8.7

4.5< 11

0.65 J, b< 9.1

< 1416

< 8.2< 4.6

< 3.9< 6

< 0.00024< 0.12

< 15M

24706SVHD24706 M

ARBELLA AVE2011-09-15

14:30House

9.64.4

< 110.51 J, b

< 9.1< 14

10< 8.2

< 4.6< 3.9

< 6< 0.00049

< 0.24< 15

M24706SVB

24706 MARBELLA AVE

2011-09-1515:10

Back20

1.3< 11

1.8 J, b< 9.1

< 14180

< 8.2< 4.6

< 3.9< 6

< 0.00024< 0.12

< 15M

24706SVG24706 M

ARBELLA AVE2011-09-15

16:01G

arage8

14< 11

< 0.45< 8.6

< 14< 5.6

< 7.8< 4.3

< 3.6< 5.7

< 0.00023< 0.11

< 14M

24706SVH24706 M

ARBELLA AVE2013-02-21

14:53House

132.3

< 271.3 J, b

< 8.4< 13

27< 7.6

< 4.2< 3.6

< 5.5< 0.00022

0.23< 14

M24706SVB

24706 MARBELLA AVE

2013-02-2115:09

Back19

0.52< 28

0.8 J, b< 8.8

< 1419

< 7.9< 4.4

< 3.7< 5.8

< 0.00023< 0.12

< 14M

24706SVBD24706 M

ARBELLA AVE2013-02-21

15:09Back

180.53

< 281 J, b

< 9< 14

19< 8.1

< 4.5< 3.8

< 5.9< 0.00047

< 0.24< 15

M24706SVG

24706 MARBELLA AVE

2013-02-2115:27

Garage

164.6

< 281 J, b

< 8.8< 14

< 5.7< 7.9

< 4.4< 3.7

< 5.8< 0.00046

< 0.23< 14

M24706SVB

24706 MARBELLA AVE

2013-06-2614:49

Back19

1.3< 27

< 0.76< 8.4

< 1314

< 7.6< 4.2

< 3.6< 5.5

< 0.00022< 0.11

< 14M

24706SVH24706 M

ARBELLA AVE2013-06-26

14:51House

133.8

< 27< 0.76

< 8.5< 13

47< 7.7

< 4.2< 3.6

< 5.6< 0.00023

< 0.11< 14

M24706SVG

24706 MARBELLA AVE

2013-06-2615:17

Garage

146.8

< 29< 0.81

< 9.1< 14

< 5.9< 8.2

< 4.5< 3.8

< 6< 0.00024

< 0.12< 15

R24706SVB24706 RAVEN

NA AVE

2010-08-2300:00

Back19

1.247

< 1.312

6.8100

< 7.8< 4.3

22< 5.7

< 0.00023< 0.12

< 3.6R24706SVF

24706 RAVENN

A AVE2010-08-23

13:28Front

20< 0.025

37< 1.4

< 9.58.7

< 6.2< 8.5

< 4.7< 4

< 6.2< 0.00025

< 0.13< 3.9

R24706SVH24706 RAVEN

NA AVE

2010-08-2314:03

House19

0.9233

< 1.411

5.2< 5.8

< 8.1< 4.5

< 3.8< 5.9

< 0.00024< 0.12

< 3.7R24706SVB

24706 RAVENN

A AVE2013-04-25

14:57Back

210.55

< 290.62 J, b

< 9.2< 14

10< 8.2

< 4.6< 3.9

< 6< 0.00024

< 0.12< 15

R24706SVH24706 RAVEN

NA AVE

2013-04-2514:59

House20

1110

3 J, b13

15< 5.7

< 8< 4.4

< 3.8< 5.8

< 0.000240.16

18R24706SVF

24706 RAVENN

A AVE2013-04-25

15:28Front

230.21

440.76 J, b

< 9.3< 15

< 6< 8.4

< 4.7< 4

< 6.1< 0.00025

< 0.12< 15

M24707SVH

24707 MARBELLA AVE

2010-06-2809:52

House19

0.4949

< 2.4< 8.9

< 3.5< 5.8

8< 4.5

< 3.8< 5.9

< 0.00024< 0.12

< 3.7M

24707SVB24707 M

ARBELLA AVE2010-06-28

11:30Back

191.2

17< 2.3

113.5

< 5.716

< 4.4< 3.7

< 5.8< 0.00023

< 0.125.1

M24707SVH

24707 MARBELLA AVE

2011-05-0614:12

House20

1.3< 12

7.1 J, b< 9.4

< 15< 6.1

< 8.5< 4.7

< 4< 6.2

< 0.00025< 0.12

< 16M

24707SVB24707 M

ARBELLA AVE2011-05-06

14:53Back

210.61

< 113.4 J, b

< 9.1< 14

< 5.99.6

< 4.6< 3.9

< 6< 0.00024

< 0.12< 15

M24707SVBS

24707 MARBELLA AVE

2011-05-0614:53

Back21.5

0.667< 18

< 1< 18

< 18< 1.8

7.6< 1.8

< 1.83.1

< 0.17< 18

M24707SVF

24707 MARBELLA AVE

2011-05-0615:24

Front21

0.2416

3.7 J, b< 9

< 14< 5.8

< 8.1< 4.5

< 3.8< 5.9

< 0.00024< 0.12

< 15M

24707SVFS24707 M

ARBELLA AVE2011-05-06

15:26Front

22.10.265

< 20< 1.2

< 20< 20

< 2< 2

< 2< 2

2.2< 0.19

< 20M

24707SVH24707 M

ARBELLA AVE2012-09-07

10:34House

128.6

< 291.1 J, b

< 9.1< 14

< 5.911

< 4.6< 3.9

< 6< 0.00024

< 0.12< 15

M24707SVF

24707 MARBELLA AVE

2012-09-0711:01

Front20

0.3183 j

1.4 J, b13

18< 5.8

< 8.1< 4.5

< 3.8< 5.9

< 0.000240.16

< 15M

24707SVFS24707 M

ARBELLA AVE2012-09-07

11:01Front

21.20.308

< 20 U< 0.83 U

< 20 U< 20 U

< 2 U< 2 U

< 2 U< 2 U

< 2 U< 0.16 U

< 20 U

Page 259: Table Proposed Cleanup Levels Groundwater · 10/21/2013  · Table 04 Summery of PrsllMnery Cost ES11motee for Soleening Feasibility Study Former Kest Property Carson, CA GeotFnlenGOneullanle

Table B-2Sub-Slab Soil Vapor Results

Former Kast Property

Carson, California

Residential Properties Sampled Through August 31, 2013

Page 27 of 235

Oxygen

Oxygen/Argon

Carbon Dioxide

AcetoneN

aphthaleneEthanol

2-Butanone (M

ethyl Ethyl Ketone)

ChloroformTetrachloro-

etheneToluene

BenzeneFreon 12

Methane

HeliumCarbon

DisulfideM

OL %

MO

L %M

OL %

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

MO

L %M

OL %

UG

/M3

100.00%100.00%

92.56%52.63%

49.98%18.72%

17.61%16.54%

8.00%7.84%

7.80%6.94%

6.17%5.34%

4.80%Sam

ple IDAddress

Sample D

ateSam

ple Time

Location

AnalyteU

nitsFrequency of D

etection

M24707SVB

24707 MARBELLA AVE

2012-09-0711:14

Back20

0.69< 27

1.4 J, b< 8.6

< 14< 5.6

< 7.8< 4.3

< 3.6< 5.7

< 0.00023< 0.11

< 14M

24707SVB24707 M

ARBELLA AVE2013-04-18

09:53Back

220.33

692.1 J, b

1122

< 5.6< 7.8

< 4.3< 3.7

< 5.7< 0.00023

< 0.12< 14

M24707SVH

24707 MARBELLA AVE

2013-04-1810:06

House16

5.232

3.1 J, b9.9

< 14< 5.6

< 7.8< 4.3

< 3.6< 5.7

< 0.00023< 0.11

< 14M

24707SVF24707 M

ARBELLA AVE2013-04-19

11:34Front

220.14

465.9 J, b

9.3< 14

< 5.9< 8.2

< 4.6< 3.9

< 6< 0.00024

< 0.12< 15

P24708SVH24708 PAN

AMA AVE

2010-06-1709:11

House20

0.47< 12

< 2.5< 9.5

< 3.7< 6.2

< 8.6< 4.8

< 4< 6.2

< 0.00025< 0.13

< 3.9P24708SVG

24708 PANAM

A AVE2010-06-17

10:06G

arage19

0.3630

< 2.437

< 3.6< 5.9

< 8.2< 4.6

< 3.9< 6

< 0.00061< 0.3

< 3.8P24708SVG

S24708 PAN

AMA AVE

2010-06-1710:06

Garage

21.70.409

21< 1.4

< 18< 18

< 1.8< 1.8

< 1.8< 1.8

2.1< 0.16

< 18P24708SVB

24708 PANAM

A AVE2010-06-17

11:03Back

184.1

15< 2.5

< 9.3< 3.6

< 6< 8.4

< 4.7< 4

< 6.1< 0.00025

< 0.12< 3.9

P24708SVBD24708 PAN

AMA AVE

2010-06-1711:03

Back18

4< 12

< 2.4< 9.3

< 3.6< 6

< 8.3< 4.6

< 3.9< 6.1

< 0.00025< 0.12

< 3.8P24708SVH

24708 PANAM

A AVE2012-08-16

10:23House

191.1

< 193.5 J, b

< 6.2< 9.7

< 4< 5.6

< 3.1< 2.6

< 4< 0.00016

< 0.082< 10

P24708SVG24708 PAN

AMA AVE

2012-08-1610:58

Garage

200.61

< 192.2 J, b

< 6< 9.3

< 3.8< 5.4

< 3< 2.5

< 3.9< 0.00016

< 0.079< 9.8

P24708SVGS

24708 PANAM

A AVE2012-08-16

10:58G

arage21.3

0.65120

< 0.83 U< 20 U

< 20 U< 2 U

2< 2 U

< 2 U2.3

< 0.16 U< 20 U

P24708SVB24708 PAN

AMA AVE

2012-08-1611:26

Back15

6< 19

3.8 J, b17

< 9.77.2

< 5.6< 3.1

< 2.6< 4

< 0.00016< 0.082

< 10P24708SVBS

24708 PANAM

A AVE2012-08-16

11:26Back

15.76.18

< 20 U< 0.86 U

< 20 U< 20 U

6.5< 2 U

< 2 U< 2 U

2.2< 0.16 U

< 20 UP24708SVB

24708 PANAM

A AVE2013-05-15

15:09Back

185

< 27< 0.56

< 8.5< 13

< 5.5< 7.6

< 4.2< 3.6

< 5.6< 0.00022

< 0.11< 14

P24708SVH24708 PAN

AMA AVE

2013-05-1515:21

House21

0.85< 29

3 J, b< 9.1

< 14< 5.9

< 8.2< 4.6

< 3.9< 6

< 0.00024< 0.12

< 15P24708SVG

24708 PANAM

A AVE2013-05-15

15:38G

arage21

0.68< 30

1.7 J, b< 9.6

< 15< 6.2

< 8.6< 4.8

< 4< 6.3

< 0.00025< 0.13

< 16N

24709SVH24709 N

EPTUN

E AVE2010-07-01

09:18House

171.9

30160

56< 3.4

< 5.7< 7.9

< 4.46.2

< 5.8< 0.00068

< 0.34< 3.6

N24709SVB

24709 NEPTU

NE AVE

2010-07-0110:09

Back20

0.22110

< 2.518

20< 6

< 8.4< 4.6

15< 6.1

< 0.00025< 0.12

< 3.8N

24709SVG24709 N

EPTUN

E AVE2010-07-01

10:44G

arage18

0.05154

2.3 J460

3.8< 5.7

< 7.9< 4.4

< 3.7< 5.8

< 0.00023< 0.12

< 3.6N

24709SVG24709 N

EPTUN

E AVE2012-08-10

10:03G

arage18

2.7< 19

< 3< 6.1

< 9.5< 3.9

< 5.5< 3

< 2.6< 4

< 0.00016< 0.08

< 10N

24709SVGS

24709 NEPTU

NE AVE

2012-08-1010:03

Garage

18.72.82

< 22 U< 0.91 U

< 22 U< 22 U

< 2.2 U4.8

< 2.2 U< 2.2 U

< 2.2 U< 0.17 U

< 22 UN

24709SVH24709 N

EPTUN

E AVE2012-08-10

10:16House

182.2

< 19< 3

< 6.1< 9.5

< 3.9< 5.5

< 3< 2.6

< 4< 0.00016

< 0.08< 10

N24709SVB

24709 NEPTU

NE AVE

2012-08-1010:43

Back20

0.38< 21

< 3.3< 6.6

< 10< 4.3

< 5.9< 3.3

< 2.8< 4.3

< 0.00018< 0.088

< 11N

24709SVBS24709 N

EPTUN

E AVE2012-08-10

10:43Back

21.20.403

< 23 U< 0.96 U

< 23 U< 23 U

< 2.3 U< 2.3 U

< 2.3 U< 2.3 U

< 2.3 U< 0.18 U

< 23 UN

24709SVH24709 N

EPTUN

E AVE2013-05-22

09:55House

192

2402.1 J, b

21< 14

< 5.6< 7.8

< 4.3< 3.7

< 5.7< 0.00023

< 0.12< 14

N24709SVB

24709 NEPTU

NE AVE

2013-05-2210:06

Back21

0.5151

1.3 J, b16

< 14< 5.7

< 7.95.5 b

< 3.7< 5.8

< 0.00023< 0.12

< 14N

24709SVBD24709 N

EPTUN

E AVE2013-05-22

10:06Back

220.52

< 280.93 J, b

25< 14

< 5.8< 8

< 4.4< 3.8

< 5.8< 0.00024

< 0.12< 15

N24709SVG

24709 NEPTU

NE AVE

2013-05-2210:31

Garage

202

< 280.8 J, b

9.4< 14

< 5.7< 8

< 4.4< 3.8

< 5.8< 0.00024

< 0.12< 15

P24709SVH24709 PAN

AMA AVE

2009-10-0311:28

House18

1.4< 11

< 2.967

< 3.4< 5.6

< 7.8< 4.3

< 3.7< 5.7

< 0.00023< 3.6

P24709SVB24709 PAN

AMA AVE

2009-10-0312:20

Back19

1.826

5.3 J26

10< 5.7

< 7.9< 4.4

< 3.7< 5.8

< 0.0002354

P24709SVF24709 PAN

AMA AVE

2009-10-0313:23

Front17

0.05919

16 J< 7.7

3.4< 5

< 7< 3.9

< 3.3< 5.1

< 0.0002< 3.2

P24709SVB24709 PAN

AMA AVE

2011-02-1109:03

Back20

1.3< 11

0.96 J, b< 9

< 3.5< 5.8

< 8.1< 4.5

< 3.8< 5.9

< 0.00024< 0.12

< 3.7P24709SVBS

24709 PANAM

A AVE2011-02-11

09:03Back

21.21.46

< 18< 1.4

< 18< 18

< 1.8< 1.8

< 1.8< 1.8

2.6< 0.16

< 18P24709SVH

24709 PANAM

A AVE2011-02-11

09:51House

191.8

< 100.86 J, b

< 8< 3.1

< 5.2< 7.2

9.7< 3.4

< 5.30.00043

< 0.11< 3.3

P24709SVHS24709 PAN

AMA AVE

2011-02-1109:51

House19.9

2.22< 18

< 1.4< 18

< 18< 1.8

2< 1.8

< 1.82.5

< 0.16< 18

P24709SVF24709 PAN

AMA AVE

2011-02-1110:49

Front20

0.85< 11

0.46 J, b< 9

< 3.5< 5.8

< 8.1< 4.5

< 3.8< 5.9

< 0.00024< 0.12

< 3.7P24709SVF

24709 PANAM

A AVE2012-03-08

15:54Front

210.66

< 186 J, b

< 5.8< 9.1

< 3.8< 5.2

< 2.9< 2.5

< 3.8< 0.00016

< 0.078< 9.6

P24709SVH24709 PAN

AMA AVE

2012-03-0815:55

House18

3.230

4.9 J, b18

< 9.7< 4

< 5.6< 3.1

< 2.6< 4

< 0.00016< 0.082

< 10P24709SVHD

24709 PANAM

A AVE2012-03-08

15:55House

183.2

< 194.6 J, b

< 6.2< 9.7

< 4< 5.6

< 3.1< 2.6

< 4< 0.00016

< 0.082< 10

P24709SVH24709 PAN

AMA AVE

2013-06-2710:24

House15

6.538

< 0.75< 8.4

< 13< 5.4

< 7.6< 4.2

< 3.6< 5.5

< 0.00022< 0.11

< 14P24709SVBA

24709 PANAM

A AVE2013-06-27

10:34Back

183.9

110< 0.87

13< 15

28< 8.7

< 4.8< 4.1

< 6.4< 0.00026

< 0.13< 16

P24709SVBAD24709 PAN

AMA AVE

2013-06-2710:34

Back18

3.948

0.97 J, b< 9.3

< 1529

< 8.4< 4.7

< 4< 6.1

< 0.00025< 0.12

< 15P24709SVF

24709 PANAM

A AVE2013-06-27

10:54Front

210.82

< 271 J, b

< 8.6< 14

< 5.6< 7.8

< 4.3< 3.6

< 5.7< 0.00023

< 0.11< 14

R24709SVB224709 RAVEN

NA AVE

2010-04-2614:14

Back20

0.11120

17 J< 8.9

66< 5.8

< 811

< 3.8< 5.9

< 0.00024< 0.12

5.9R24709SVB

24709 RAVENN

A AVE2010-04-26

15:02Back

200.025

15< 6.4

< 9.1< 3.6

< 5.9< 8.2

< 4.5< 3.8

< 6< 0.00024

< 0.127.4

R24709SVF24709 RAVEN

NA AVE

2010-04-2615:54

Front21

< 0.02328

< 6.216

5.2< 5.7

< 7.9< 4.4

7< 5.8

< 0.00023< 0.12

< 3.6R24709SVH

24709 RAVENN

A AVE2010-08-16

09:18House

182.8

18< 6.4

13< 3.6

6.7< 8.3

< 4.6< 3.9

< 6< 0.00024

< 0.12< 3.8

R24709SVF24709 RAVEN

NA AVE

2010-08-1610:05

Front21

0.096< 12

< 6.7< 9.5

< 3.7< 6.2

< 8.5< 4.7

< 4< 6.2

0.001< 0.13

< 3.9R24709SVB2

24709 RAVENN

A AVE2010-08-16

11:16Back

201.1

12< 6.2

10< 3.5

< 5.7< 8

< 4.4< 3.8

< 5.8< 0.00024

< 0.12< 3.6

R24709SVB24709 RAVEN

NA AVE

2010-08-1612:33

Back20

0.4229

< 6.1< 8.7

< 3.4< 5.6

< 7.8< 4.4

< 3.7< 5.7

< 0.00023< 0.12

< 3.6R24709SVF

24709 RAVENN

A AVE2013-03-21

10:06Front

220.066

59< 0.57 PF

< 8.722

< 5.7< 7.9

< 4.4< 3.7

< 5.70.00025

< 0.12< 14

Page 260: Table Proposed Cleanup Levels Groundwater · 10/21/2013  · Table 04 Summery of PrsllMnery Cost ES11motee for Soleening Feasibility Study Former Kest Property Carson, CA GeotFnlenGOneullanle

Table B-2Sub-Slab Soil Vapor Results

Former Kast Property

Carson, California

Residential Properties Sampled Through August 31, 2013

Page 28 of 235

Oxygen

Oxygen/Argon

Carbon Dioxide

AcetoneN

aphthaleneEthanol

2-Butanone (M

ethyl Ethyl Ketone)

ChloroformTetrachloro-

etheneToluene

BenzeneFreon 12

Methane

HeliumCarbon

DisulfideM

OL %

MO

L %M

OL %

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

MO

L %M

OL %

UG

/M3

100.00%100.00%

92.56%52.63%

49.98%18.72%

17.61%16.54%

8.00%7.84%

7.80%6.94%

6.17%5.34%

4.80%Sam

ple IDAddress

Sample D

ateSam

ple Time

Location

AnalyteU

nitsFrequency of D

etection

R24709SVFS24709 RAVEN

NA AVE

2013-03-2110:06

Front22

< 0.16 U< 20 U

< 0.84 U< 20 U

< 20 U< 2 U

< 2 U< 2 U

< 2 U2.2

< 0.16 U< 20 U

R24709SVB224709 RAVEN

NA AVE

2013-03-2111:10

Back21

0.54< 27

< 0.56 PF< 8.5

< 13< 5.5

< 7.7< 4.2

< 3.6< 5.6

< 0.00023< 0.11

< 14R24709SVH

24709 RAVENN

A AVE2013-03-22

16:33House

191.9

300.79 J, b

< 8.7< 14

< 5.7< 7.9

< 4.4< 3.7

< 5.7< 0.00023

< 0.12< 14

R24709SVB24709 RAVEN

NA AVE

2013-08-1414:49

Back21

0.22< 30

0.95 J, b< 9.5

< 15< 6.2

< 8.6< 4.8

< 4< 6.2

< 0.00025< 0.13

< 16R24709SVH

24709 RAVENN

A AVE2013-08-14

14:52House

192

< 28< 0.8 PF

< 9< 14

< 5.8< 8.1

< 4.5< 3.8

< 5.9< 0.00024

< 0.12< 15

R24709SVF24709 RAVEN

NA AVE

2013-08-1415:20

Front21

0.07< 28

< 0.8 PF< 8.9

< 14< 5.8

< 8< 4.4

< 3.8< 5.8

< 0.00024< 0.12

< 15R24709SVB2

24709 RAVENN

A AVE2013-08-14

15:28Back

200.68

< 26< 0.75 PF

< 8.4< 13

< 5.4< 7.6

< 4.2< 3.6

< 5.5< 0.00022

< 0.11< 14

M24710SVB

24710 MARBELLA AVE

2010-09-1414:59

Back13

9.2< 11

2.3 J, b< 9

< 3.59.4

< 8.1< 4.5

< 3.8< 5.9

< 0.00024< 0.12

4.6M

24710SVF24710 M

ARBELLA AVE2010-09-14

15:40Front

200.45

< 10< 1.2

< 8.3< 3.2

< 5.4< 7.5

< 4.1< 3.5

< 5.4< 0.00022

< 0.11< 3.4

M24710SVF

24710 MARBELLA AVE

2011-02-0813:36

Front20

0.3139

< 0.35< 9.1

< 3.6< 5.9

< 8.2< 4.6

< 3.9< 6

< 0.00024< 0.12

< 3.8M

24710SVH24710 M

ARBELLA AVE2011-02-08

14:11House

162.2

31< 0.34

164.4

< 5.7< 7.9

< 4.4< 3.7

< 5.8< 0.00023

< 0.12< 3.6

M24710SVB

24710 MARBELLA AVE

2011-02-0815:14

Back14

5.6< 11

0.62 J< 8.6

< 3.436

< 7.8< 4.3

< 3.6< 5.7

< 0.00023< 0.11

< 3.6M

24710SVF24710 M

ARBELLA AVE2012-05-03

15:19Front

210.47

< 181.2 J, b

< 5.8< 9.1

< 3.8< 5.2

< 2.9< 2.5

< 3.8< 0.00016

< 0.078< 9.6

M24710SVFD

24710 MARBELLA AVE

2012-05-0315:19

Front22

0.49< 18

0.86 J, b< 5.8

< 9.1< 3.8

< 5.2< 2.9

< 2.5< 3.8

< 0.00016< 0.078

< 9.6M

24710SVH24710 M

ARBELLA AVE2012-05-03

15:38House

184.3

< 193.5 J, b

< 6< 9.3

< 3.8< 5.4

6< 2.5

< 3.9< 0.00016

< 0.079< 9.8

M24710SVB

24710 MARBELLA AVE

2012-05-0316:03

Back10

8.560

2.3 J, b< 6.4

< 109.4

< 5.835

< 2.7< 4.2

< 0.00017< 0.086

< 11N

24712SVF24712 N

EPTUN

E AVE2010-04-21

14:48Front

210.18

3260 b

< 9.17.3

< 5.9< 8.2

623

< 6< 0.00024

< 0.12< 3.8

N24712SVB

24712 NEPTU

NE AVE

2010-04-2115:45

Back22

0.3< 11

< 2.4< 9

< 3.5310

< 8.1< 4.5

3.8< 5.9

< 0.00024< 0.12

< 3.7N

24712SVH224712 N

EPTUN

E AVE2010-08-11

08:58House

156.4

31< 6

103.4

< 5.6< 7.8

< 4.320

< 5.7< 0.00023

< 0.11< 3.6

N24712SVF

24712 NEPTU

NE AVE

2011-02-0709:16

Front21

0.5315

< 0.32< 8.4

< 3.3< 5.5

< 7.6< 4.2

< 3.6< 5.5

< 0.00022< 0.11

< 3.5N

24712SVH224712 N

EPTUN

E AVE2011-02-07

10:04House

174.5

< 112.6 J, b

< 8.8< 3.4

< 5.7< 7.9

< 4.4< 3.7

< 5.8< 0.00023

< 0.12< 3.6

N24712SVB

24712 NEPTU

NE AVE

2011-02-0710:59

Back20

1.113

< 0.34< 8.9

4.329

< 8< 4.5

< 3.8< 5.9

0.00045< 0.12

< 3.7N

24712SVBS24712 N

EPTUN

E AVE2011-02-07

10:59Back

20.71.18

< 17< 1.3

< 17< 17

27< 1.7

< 1.7< 1.7

2.5< 0.15

< 17N

24712SVH224712 N

EPTUN

E AVE2013-01-18

14:55House

175.1

< 283.9 J, b

< 8.8< 14

< 5.7< 7.9

< 4.4< 3.7

< 5.8< 0.00023

< 0.12< 14

N24712SVB

24712 NEPTU

NE AVE

2013-01-1814:57

Back20

1.1< 27

2.6 J, b< 8.7

< 14580

< 7.8< 4.4

< 3.7< 5.7

< 0.00023< 0.12

< 14N

24712SVF24712 N

EPTUN

E AVE2013-01-18

15:26Front

200.39

< 302 J, b

< 9.5< 15

< 6.2< 8.5

< 4.7< 4

< 6.2< 0.00025

< 0.13< 16

N24712SVB

24712 NEPTU

NE AVE

2013-06-1214:48

Back17

4.4< 28

< 2.6< 8.8

< 1446

< 8< 4.4

< 3.8< 5.8

< 0.00024< 0.12

< 15N

24712SVH224712 N

EPTUN

E AVE2013-06-12

15:02House

156.9

< 27< 2.4

15< 13

< 5.5< 7.6

20< 3.6

< 5.5< 0.00022

< 0.11< 14

N24712SVF

24712 NEPTU

NE AVE

2013-06-1215:14

Front21

0.92< 28

< 2.6< 9

< 14< 5.8

< 8.1< 4.5

< 3.8< 5.9

< 0.00024< 0.12

< 15P24712SVH

24712 PANAM

A AVE2010-08-12

14:06House

200.11

12 b< 6.4

< 9.1< 3.6

< 5.9< 8.2

< 4.6< 3.9

< 6< 0.00024

< 0.12< 3.8

P24712SVB24712 PAN

AMA AVE

2010-08-1214:54

Back20

0.1114 b

< 6.2< 8.8

< 3.4< 5.7

< 7.9< 4.4

< 3.7< 5.8

< 0.00023< 0.12

< 3.6P24712SVF

24712 PANAM

A AVE2010-08-12

15:45Front

200.3

26 b< 6.4

< 9.13.6

< 5.9< 8.2

< 4.6< 3.9

< 6< 0.00024

< 0.12< 3.8

P24712SVH24712 PAN

AMA AVE

2011-02-2515:09

House21

0.0922

0.73 J, b< 9.1

< 14< 5.9

< 8.2< 4.6

< 3.9< 6

< 0.00024< 0.12

< 15P24712SVB

24712 PANAM

A AVE2011-02-25

15:36Back

220.11

120.44 J, b

< 8.6< 13

< 5.6< 7.7

< 4.3< 3.6

< 5.6< 0.00023

< 0.11< 14

P24712SVBD24712 PAN

AMA AVE

2011-02-2515:36

Back22

0.12< 11

< 0.33< 8.6

< 13< 5.6

< 7.7< 4.3

< 3.6< 5.6

< 0.00023< 0.11

< 14P24712SVF

24712 PANAM

A AVE2011-02-25

16:00Front

210.18

17< 0.34

< 8.8< 14

< 5.7< 8

< 4.4< 3.8

< 5.8< 0.00024

< 0.12< 15

R24712SVF24712 RAVEN

NA AVE

2010-01-0410:51

Front21

0.4126

< 2.422

< 3.5< 5.8

< 8< 4.5

< 3.8< 5.9

< 0.00024< 0.12

< 3.7R24712SVH

24712 RAVENN

A AVE2010-01-04

11:38House

200.44

18< 2.2

21< 3.3

< 5.5< 7.6

< 4.2< 3.6

5.6< 0.00022

0.16< 3.5

R24712SVB24712 RAVEN

NA AVE

2010-01-0412:30

Back21

0.07180

< 2.4< 9

5.3< 5.8

< 8.1< 4.5

< 3.8< 5.9

< 0.000240.17

< 3.7R24712SVB

24712 RAVENN

A AVE2011-06-10

11:35Back

200.69

275 J, b

12< 14

< 6< 8.4

< 4.6< 3.9

< 6.1< 0.00025

< 0.12< 15

R24712SVBS24712 RAVEN

NA AVE

2011-06-1011:35

Back21.6

0.825< 18 U

< 1.1 U< 18 U

< 18 U2

< 1.8 U< 1.8 U

< 1.8 U< 1.8 U

< 0.17 U< 18 U

R24712SVF24712 RAVEN

NA AVE

2011-06-1012:17

Front20

0.619

1.1 J, b< 8.6

< 14< 5.6

< 7.8< 4.3

< 3.6< 5.7

< 0.00023< 0.11

< 14R24712SVFS

24712 RAVENN

A AVE2011-06-10

12:17Front

21.50.658

20< 1 U

< 18 U< 18 U

4.1< 1.8 U

< 1.8 U< 1.8 U

1.9< 0.17 U

< 18 UR24712SVH

24712 RAVENN

A AVE2011-06-10

13:00House

200.71

151 J, b

< 8.6< 14

< 5.6< 7.8

< 4.3< 3.6

< 5.7< 0.00023

< 0.11< 14

R24712SVHS24712 RAVEN

NA AVE

2011-06-1013:00

House21.3

0.777< 17 U

< 1 U< 17 U

< 17 U< 1.7 U

4.6< 1.7 U

< 1.7 U1.9

< 0.16 U< 17 U

M24713SVH

24713 MARBELLA AVE

2011-04-2614:01

House21

< 0.02416

0.85 J, b< 9

< 14< 5.8

< 8.1< 4.5

< 3.8< 5.9

< 0.00024< 0.12

< 15M

24713SVHD24713 M

ARBELLA AVE2011-04-26

14:01House

20< 0.048

150.57 J, b

< 9< 14

< 5.8< 8.1

< 4.5< 3.8

< 5.9< 0.00048

< 0.24< 15

M24713SVF

24713 MARBELLA AVE

2011-04-2614:47

Front21

< 0.025< 12

< 0.36< 9.5

< 15< 6.2

< 8.5< 4.7

< 4< 6.2

< 0.00025< 0.13

< 16M

24713SVFD24713 M

ARBELLA AVE2011-04-26

14:47Front

22< 0.026

< 120.83 J, b

< 9.9< 16

< 6.4< 9

< 5< 4.2

< 6.5< 0.00026

< 0.13< 16

M24713SVB

24713 MARBELLA AVE

2011-04-2615:28

Back22

< 0.04824

< 0.34< 9

< 14< 5.8

< 8.1< 4.5

< 3.8< 5.9

< 0.00048< 0.24

< 15M

24713SVH24713 M

ARBELLA AVE2013-03-08

14:39House

210.024

341 J, b

< 8.8< 14

< 5.7< 7.9

< 4.4< 3.7

< 5.8< 0.00023

< 0.12< 14

M24713SVB

24713 MARBELLA AVE

2013-03-0815:03

Back21

0.1334

0.63 J, b< 9

< 14< 5.8

< 8.1< 4.5

< 3.8< 5.9

< 0.00024< 0.12

< 15

Page 261: Table Proposed Cleanup Levels Groundwater · 10/21/2013  · Table 04 Summery of PrsllMnery Cost ES11motee for Soleening Feasibility Study Former Kest Property Carson, CA GeotFnlenGOneullanle

Table B-2Sub-Slab Soil Vapor Results

Former Kast Property

Carson, California

Residential Properties Sampled Through August 31, 2013

Page 29 of 235

Oxygen

Oxygen/Argon

Carbon Dioxide

AcetoneN

aphthaleneEthanol

2-Butanone (M

ethyl Ethyl Ketone)

ChloroformTetrachloro-

etheneToluene

BenzeneFreon 12

Methane

HeliumCarbon

DisulfideM

OL %

MO

L %M

OL %

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

MO

L %M

OL %

UG

/M3

100.00%100.00%

92.56%52.63%

49.98%18.72%

17.61%16.54%

8.00%7.84%

7.80%6.94%

6.17%5.34%

4.80%Sam

ple IDAddress

Sample D

ateSam

ple Time

Location

AnalyteU

nitsFrequency of D

etection

M24713SVF

24713 MARBELLA AVE

2013-03-0815:08

Front21

0.44< 26

0.74 J, b< 8.4

< 13< 5.4

< 7.6< 4.2

< 3.6< 5.5

< 0.00022< 0.11

< 14M

24713SVH24713 M

ARBELLA AVE2013-07-30

14:52House

200.041

782 J, b

< 8.6< 13

< 5.5< 7.7

6.2< 3.6

< 5.6< 0.00023

< 0.11< 14

M24713SVB

24713 MARBELLA AVE

2013-07-3015:06

Back20

0.3640

0.94 J, b< 9

< 14< 5.8

< 8.1< 4.5

< 3.8< 5.9

< 0.00024< 0.12

< 15M

24713SVF24713 M

ARBELLA AVE2013-07-30

15:23Front

200.74

< 26< 0.75

< 8.4< 13

< 5.4< 7.5

< 4.2< 3.5

< 5.5< 0.00022

< 0.11< 14

P24713SVH24713 PAN

AMA AVE

2011-05-1009:26

House13

6< 11

2 J, b< 9.1

< 14< 5.9

< 8.2< 4.6

< 3.9< 6

0.024< 0.12

< 15P24713SVB

24713 PANAM

A AVE2011-05-10

10:08Back

126.8

< 115.5 J, b

< 8.8< 14

110< 7.9

5.6< 3.7

< 5.80.0026

< 0.12< 14

P24713SVG24713 PAN

AMA AVE

2011-05-1010:59

Garage

203.5

< 111.4 J, b

< 8.7< 14

< 5.6200

< 4.3< 3.7

< 5.7< 0.00023

< 0.12< 14

P24713SVGS

24713 PANAM

A AVE2011-05-10

10:59G

arage19.6

3.78< 17

< 0.96< 17

< 172

180< 1.7

< 1.72.2

< 0.1518

P24713SVH24713 PAN

AMA AVE

2013-04-0509:46

House9.2

11< 29

1.2 J< 9.2

< 14< 6

< 8.3< 4.6

< 3.9< 6

< 0.00024< 0.12

< 15P24713SVB

24713 PANAM

A AVE2013-04-05

10:13Back

157.1

< 551.6 J

< 17< 27

< 11< 16

< 8.7< 7.4

< 11< 0.00023

< 0.12< 29

P24713SVBD24713 PAN

AMA AVE

2013-04-0510:13

Back7.9 j

3.7 j< 50

1.2 J< 16

< 25< 10

< 14< 8

< 6.7< 10

< 0.00023< 0.11

< 26P24713SVG

24713 PANAM

A AVE2013-04-05

10:16G

arage20

3.2< 28

2 J< 9

< 14< 5.8

160< 4.5

3.9< 5.9

< 0.00024< 0.12

< 15P24713SVG

D24713 PAN

AMA AVE

2013-04-0510:16

Garage

193.2

< 281.8 J

< 9< 14

< 5.8160

< 4.5< 3.8

< 5.9< 0.00024

< 0.12< 15

R24713SVH24713 RAVEN

NA AVE

2011-04-0613:59

House15

3.811

1.3 J, b< 8.6

< 14< 5.6

< 7.8< 4.3

< 3.6< 5.7

< 0.00053< 0.27

< 14R24713SVG

24713 RAVENN

A AVE2011-04-06

14:43G

arage18

0.23< 13

1.3 J, b< 10

< 16< 6.7

< 9.4< 5.2

< 4.4< 6.8

< 0.00049< 0.24

< 17R24713SVG

D24713 RAVEN

NA AVE

2011-04-0614:43

Garage

170.21

< 130.85 J, b

< 10< 16

< 6.7< 9.4

< 5.2< 4.4

< 6.8< 0.00028

< 0.14< 17

R24713SVB24713 RAVEN

NA AVE

2011-04-0615:27

Back19

0.9439

0.7 J, b17

< 14370

< 7.8< 4.3

< 3.6< 5.7

< 0.00023< 0.11

< 14R24713SVBD

24713 RAVENN

A AVE2011-04-06

15:27Back

180.89

360.71 J, b

18< 14

400< 7.8

< 4.3< 3.6

< 5.7< 0.00023

< 0.11< 14

R24713SVH24713 RAVEN

NA AVE

2013-08-0114:52

House8.3

9.6< 28

< 0.78< 8.7

< 14< 5.7

< 7.9< 4.4

< 3.7< 5.7

< 0.00023< 0.12

< 14R24713SVB

24713 RAVENN

A AVE2013-08-01

15:06Back

191.4

< 28< 0.8

< 8.9< 14

< 5.8< 8

< 4.5< 3.8

< 5.9< 0.00024

< 0.12< 15

R24713SVG24713 RAVEN

NA AVE

2013-08-0115:16

Garage

173.3

< 28< 0.8

< 9< 14

< 5.8< 8.1

< 4.5< 3.8

< 5.9< 0.00024

< 0.12< 15

N24715SVB

24715 NEPTU

NE AVE

2010-04-2609:40

Back21

< 0.02326

< 6.235

11< 5.7

< 7.9< 4.4

4.6< 5.8

< 0.00023< 0.12

< 3.6N

24715SVF24715 N

EPTUN

E AVE2010-04-26

10:30Front

21< 0.024

21< 6.3

174.2

< 5.8< 8

7.54.1

< 5.9< 0.00024

< 0.12< 3.7

N24715SVH

24715 NEPTU

NE AVE

2010-04-2611:38

House19

2.368

< 6.221

36< 5.7

< 7.9< 4.4

< 3.7< 5.8

< 0.00023< 0.12

< 3.6N

24715SVB24715 N

EPTUN

E AVE2011-02-18

15:05Back

230.25

27< 0.34

< 9< 3.5

< 5.8< 8.1

< 4.5< 3.8

< 5.9< 0.00024

< 0.12< 3.7

N24715SVH

24715 NEPTU

NE AVE

2011-02-1815:48

House19

2.3< 13

< 0.4< 10

< 4.1< 6.7

< 9.4< 5.2

< 4.4< 6.8

0.00034< 0.14

< 4.3N

24715SVF24715 N

EPTUN

E AVE2011-02-18

16:41Front

220.24

< 11< 0.34

< 8.8< 3.5

< 5.7< 8

< 4.4< 3.8

< 5.8< 0.00024

< 0.12< 3.6

N24715SVH

24715 NEPTU

NE AVE

2013-08-0714:44

House18

2.245

2.4 J, b63

< 14< 5.8

< 8.1< 4.5

< 3.8< 5.9

0.00038< 0.12

< 15N

24715SVB24715 N

EPTUN

E AVE2013-08-07

14:54Back

192.1

< 301.4 J, b

< 9.6< 15

< 6.2< 8.6

< 4.8< 4.1

< 6.3< 0.00026

< 0.13< 16

N24715SVF

24715 NEPTU

NE AVE

2013-08-0715:38

Front21

0.45< 29

0.94 J, b< 9.3

< 14< 6

< 8.3< 4.6

< 3.9< 6.1

< 0.00025< 0.12

< 15M

24716SVG24716 M

ARBELLA AVE2010-07-02

14:50G

arage13

4.347

< 2.4 Q< 9.1

< 3.616

28< 4.6

< 3.9< 6

< 0.00024< 0.12

< 3.8M

24716SVH24716 M

ARBELLA AVE2010-07-02

16:23House

200.2

35< 2.3 Q

136

< 5.7< 8

< 4.4< 3.8

< 5.8< 0.00024

< 0.124

M24716SVH

24716 MARBELLA AVE

2011-04-1914:21

House21

0.99< 11

< 0.33< 8.7

< 14< 5.6

< 7.8< 4.3

< 3.7< 5.7

< 0.00023< 0.12

< 14M

24716SVG24716 M

ARBELLA AVE2011-04-19

15:03G

arage16

5.3< 14

< 0.42< 11

< 17< 7.1

19< 5.5

< 4.6< 7.2

< 0.00029< 0.14

< 18M

24716SVB24716 M

ARBELLA AVE2011-04-19

15:40Back

201.2

< 122.4 J, b

< 9.2< 14

150< 8.3

< 4.6< 3.9

< 6< 0.00024

< 0.12< 15

M24716SVBD

24716 MARBELLA AVE

2011-04-1915:40

Back20

1.2< 12

< 0.35< 9.3

< 14140

< 8.3< 4.6

< 3.9< 6.1

< 0.00025< 0.12

< 15M

24716SVB24716 M

ARBELLA AVE2012-05-24

09:56Back

210.9

< 251.2 J, b

< 817

890< 7.2

6.2 j< 3.4

< 5.2< 0.00015

< 0.076< 13

M24716SVBD

24716 MARBELLA AVE

2012-05-2409:56

Back21

0.94< 19

1.4 J, b< 5.9

< 9.2760

< 5.3< 3

< 2.5< 3.9

< 0.00016< 0.078

< 9.8M

24716SVH24716 M

ARBELLA AVE2012-05-24

10:29House

200.82

304.9 J, b

< 5.8< 9

< 3.7< 5.2

< 2.95.6

< 3.80.00022

< 0.076< 9.5

M24716SVG

24716 MARBELLA AVE

2012-05-2410:42

Garage

156.1

< 182.2 J, b

< 5.8< 9.1

1620

< 2.9< 2.5

< 3.8< 0.00016

< 0.078< 9.6

M24716SVH

24716 MARBELLA AVE

2013-07-2509:55

House20

0.61< 30

0.88 J, b< 9.5

< 15< 6.2

< 8.5< 4.7

< 4< 6.2

< 0.00025< 0.13

< 16M

24716SVB24716 M

ARBELLA AVE2013-07-25

10:04Back

181.7

< 28< 0.78

< 8.8< 14

310< 7.9

< 4.4< 3.7

< 5.8< 0.00023

< 0.12< 14

M24716SVBD

24716 MARBELLA AVE

2013-07-2510:04

Back18

1.8< 29

< 0.82< 9.1

< 14330

< 8.2< 4.6

< 3.9< 6

< 0.00024< 0.12

< 15M

24716SVG24716 M

ARBELLA AVE2013-07-25

10:25G

arage13

8.3< 27

< 0.77< 8.6

< 1430

17< 4.3

< 3.6< 5.7

< 0.00023< 0.11

< 14R24716SVH

24716 RAVENN

A AVE2012-03-01

11:22House

200.4

< 261.5 J, b

< 8.2< 13

< 5.3< 7.4

< 4.1< 3.5

< 5.4< 0.00016

< 0.078< 14

R24716SVHD24716 RAVEN

NA AVE

2012-03-0111:22

House20

0.4< 25

0.45 J, b< 8

< 12< 5.2

< 7.2< 4

< 3.4< 5.2

< 0.00016< 0.079

< 13R24716SVG

24716 RAVENN

A AVE2012-03-01

11:32G

arage18

3.2< 23

0.51 J, b< 7.4

< 12< 4.8

< 6.6< 3.7

< 3.1< 4.8

< 0.00015< 0.073

< 12R24716SVB

24716 RAVENN

A AVE2012-03-01

12:01Back

200.39

< 190.3 J, b

< 6.1< 9.5

49< 5.5

< 3< 2.6

< 4< 0.00016

< 0.08< 10

M24717SVH

24717 MARBELLA AVE

2010-07-0214:52

House20

0.15130

2.4 J,Q20

9.47

< 87.8

5.2< 5.9

0.00069< 0.27

< 3.7M

24717SVF24717 M

ARBELLA AVE2010-07-02

16:12Front

21< 0.024

52< 2.3 Q

117.4

< 5.7< 8

< 4.4< 3.8

< 5.8< 0.00024

< 0.12< 3.6

M24717SVB

24717 MARBELLA AVE

2010-07-0216:51

Back15

732

3.9 J,Q16

9.616

22< 4.4

< 3.7< 5.8

< 0.00045< 0.22

91M

24717SVH24717 M

ARBELLA AVE2012-07-26

09:56House

200.95

< 18< 2.9

< 5.8< 9.1

< 3.8< 5.2

< 2.9< 2.5

< 3.8< 0.00016

< 0.078< 9.6

Page 262: Table Proposed Cleanup Levels Groundwater · 10/21/2013  · Table 04 Summery of PrsllMnery Cost ES11motee for Soleening Feasibility Study Former Kest Property Carson, CA GeotFnlenGOneullanle

Table B-2Sub-Slab Soil Vapor Results

Former Kast Property

Carson, California

Residential Properties Sampled Through August 31, 2013

Page 30 of 235

Oxygen

Oxygen/Argon

Carbon Dioxide

AcetoneN

aphthaleneEthanol

2-Butanone (M

ethyl Ethyl Ketone)

ChloroformTetrachloro-

etheneToluene

BenzeneFreon 12

Methane

HeliumCarbon

DisulfideM

OL %

MO

L %M

OL %

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

MO

L %M

OL %

UG

/M3

100.00%100.00%

92.56%52.63%

49.98%18.72%

17.61%16.54%

8.00%7.84%

7.80%6.94%

6.17%5.34%

4.80%Sam

ple IDAddress

Sample D

ateSam

ple Time

Location

AnalyteU

nitsFrequency of D

etection

M24717SVB

24717 MARBELLA AVE

2012-07-2610:08

Back17

5.2< 19

< 3< 6.1

< 9.5< 3.9

9.6< 3

< 2.6< 4

< 0.00016< 0.08

< 10M

24717SVBD24717 M

ARBELLA AVE2012-07-26

10:08Back

175.2

47< 3

< 6< 9.4

< 3.910

< 3< 2.6

< 4< 0.00016

< 0.08< 10

M24717SVF

24717 MARBELLA AVE

2012-07-2610:27

Front21

0.1< 30

< 4.8< 9.7

< 15< 6.3

< 8.7< 4.8

< 4.1< 6.4

< 0.00015< 0.076

< 16M

24717SVH24717 M

ARBELLA AVE2013-05-23

14:49House

201.1

< 280.75 J, b

< 8.9< 14

< 5.8< 8

< 4.5< 3.8

< 5.9< 0.00032

< 0.16< 15

M24717SVB

24717 MARBELLA AVE

2013-05-2315:08

Back16

640

0.77 J, b< 9.3

< 14< 6

17< 4.6

< 3.9< 6.1

< 0.00025< 0.12

< 15M

24717SVF24717 M

ARBELLA AVE2013-05-23

15:22Front

220.094

640.74 J, b

< 8.6< 14

< 5.6< 7.8

< 4.3< 3.6

< 5.7< 0.00023

< 0.11< 14

N24718SVG

24718 NEPTU

NE AVE

2010-09-0809:57

Garage

164.4

173.9 J, b

< 8.8< 3.4

< 5.7< 7.9

< 4.4< 3.7

< 5.8< 0.00023

< 0.12< 3.6

N24718SVB

24718 NEPTU

NE AVE

2010-09-0810:47

Back19

2.759

2.6 J, b9.1

< 3.5< 5.8

< 8< 4.5

< 3.8< 5.9

< 0.00024< 0.12

< 3.7N

24718SVHA24718 N

EPTUN

E AVE2011-02-04

09:36House

210.53

291.7 J, b

< 8.3< 3.2

< 5.454

< 4.1< 3.5

< 5.40.00025

0.43< 3.4

N24718SVHB

24718 NEPTU

NE AVE

2012-02-2410:34

Back20

1.2< 18

0.91 J, b24

< 9< 3.7

12< 2.9

< 2.4< 3.8

0.000310.19

< 9.5N

24718SVG24718 N

EPTUN

E AVE2012-02-24

10:58G

arage20

2.5< 18

1.3 J, b< 5.7

< 9< 3.7

< 5.2< 2.9

< 2.4< 3.8

< 0.00015< 0.076

< 9.5N

24718SVB24718 N

EPTUN

E AVE2012-02-24

11:25Back

202.1

< 200.63 J, b

< 6.3< 9.9

< 4.1< 5.7

< 3.2< 2.7

< 4.2< 0.00017

< 0.084< 10

N24718SVBD

24718 NEPTU

NE AVE

2012-02-2411:25

Back20

2.1< 20

0.64 J, b< 6.3

< 9.9< 4.1

< 5.7< 3.2

< 2.7< 4.2

< 0.00017< 0.084

< 10P24718SVB2

24718 PANAM

A AVE2010-06-24

09:32Back

200.12

13< 2.4

< 8.9< 3.5

290< 8

< 4.5< 3.8

< 5.9< 0.00024

< 0.12< 3.7

P24718SVF24718 PAN

AMA AVE

2010-06-2410:19

Front20

0.03634

< 2.411

8.2< 5.8

< 8< 4.5

< 3.8< 5.9

< 0.00024< 0.12

< 3.7P24718SVH

24718 PANAM

A AVE2010-06-24

11:18House

200.25

85< 2.4

3210

< 5.9250

< 4.6< 3.9

< 6< 0.00024

< 0.12< 3.8

P24718SVB224718 PAN

AMA AVE

2012-10-1810:00

Back20

1.2< 28

< 0.58 PF< 8.8

< 1421

< 7.9< 4.4

< 3.7< 5.8

< 0.00023< 0.12

< 14P24718SVB2D

24718 PANAM

A AVE2012-10-18

10:00Back

201.2

320.67 J, b

< 9< 14

21< 8.1

< 4.5< 3.8

< 5.9< 0.00024

< 0.12< 15

P24718SVH24718 PAN

AMA AVE

2012-10-1810:03

House20

0.56< 27

< 0.55 PF< 8.4

< 13< 5.5

200< 4.2

< 3.6< 5.5

< 0.000220.38

< 14P24718SVF

24718 PANAM

A AVE2012-10-18

10:42Front

200.76

< 280.58 J, b

< 8.8< 14

< 5.7< 7.9

< 4.4< 3.7

< 5.8< 0.00029

< 0.14< 14

P24718SVH24718 PAN

AMA AVE

2013-05-1610:09

House21

0.43< 28

< 2.6< 8.9

< 14< 5.8

18018

< 3.8< 5.9

< 0.000240.36

< 15P24718SVG

24718 PANAM

A AVE2013-05-16

10:12G

arage20

0.1768

< 2.6< 9.1

< 14< 5.9

< 8.226

< 3.9< 6

0.00026< 0.12

< 15P24718SVB2

24718 PANAM

A AVE2013-05-16

10:51Back

200.88

< 28< 2.5

< 8.7< 14

12< 7.9

7.2< 3.7

< 5.7< 0.00023

< 0.12< 14

P24718SVF24718 PAN

AMA AVE

2013-05-1611:10

Front21

0.48< 25

< 2.3< 7.8

< 12< 5.1

< 7< 3.9

< 3.3< 5.1

< 0.00021< 0.1

< 13N

24719SVB24719 N

EPTUN

E AVE2010-07-16

14:03Back

163.8

43< 6.6

125.7

< 6< 8.4

< 4.7< 4

< 6.1< 0.00025

< 0.1211

N24719SVH

24719 NEPTU

NE AVE

2010-07-1614:52

House14

6.241

< 6.2< 8.8

3.6< 5.7

< 7.9< 4.4

14 j< 5.8

< 0.00023< 0.12

< 3.6N

24719SVF24719 N

EPTUN

E AVE2010-07-16

15:43Front

182.9

270< 6.3

1616

< 5.8< 8.1

< 4.548 j

< 5.9< 0.00024

0.28< 3.7

N24719SVH

24719 NEPTU

NE AVE

2012-07-1915:00

House16

5.722

< 3 PF< 6

< 9.3< 3.8

< 5.4< 3

< 2.5< 3.9

< 0.00016< 0.079

< 9.8N

24719SVB24719 N

EPTUN

E AVE2012-07-19

15:32Back

165

< 26< 4

14< 13

590< 7.3

< 4< 3.4

< 5.3< 0.00022

< 0.11< 13

N24719SVBD

24719 NEPTU

NE AVE

2012-07-1915:32

Back16

5.2< 19

< 3< 6.1

< 9.5830

< 5.5< 3

< 2.6< 4

< 0.00016< 0.08

< 10P24719SVH

24719 PANAM

A AVE2010-06-28

09:23House

200.14

2102.5 J

1421

< 5.7< 7.9

< 4.4< 3.7

< 5.8< 0.00023

< 0.125.6

P24719SVF24719 PAN

AMA AVE

2010-06-2811:21

Front18

1.712

< 2.38.5 J

< 3.419

< 7.8< 4.4

< 3.7< 5.7

< 0.00023< 0.12

< 3.6P24719SVBA

24719 PANAM

A AVE2011-03-04

08:51Back

125.9

< 110.46 J, b

< 8.7< 14

< 5.6< 7.8

< 4.4< 3.7

< 5.7< 0.00023

< 0.12< 14

P24719SVH24719 PAN

AMA AVE

2011-03-0409:38

House21

0.26< 11

1 J, b< 8.7

< 14< 5.6

< 7.8< 4.4

< 3.7< 5.7

< 0.00023< 0.12

< 14P24719SVHS

24719 PANAM

A AVE2011-03-04

09:38House

220.279

< 17< 1

19< 17

< 1.7< 1.7

< 1.7< 1.7

2.6< 0.16

< 17P24719SVF

24719 PANAM

A AVE2011-03-04

10:20Front

210.5

280.67 J, b

< 8.8< 14

< 5.7< 7.9

< 4.4< 3.7

< 5.8< 0.00023

< 0.12< 14

P24719SVFS24719 PAN

AMA AVE

2011-03-0410:20

Front21.9

0.55523

< 0.98< 17

< 17< 1.7

< 1.7< 1.7

< 1.72.5

< 0.15< 17

P24719SVF24719 PAN

AMA AVE

2012-09-2809:49

Front18

3.139

1.6 J, b29

< 14< 5.7

< 7.912

< 3.7< 5.8

< 0.00023< 0.12

< 14P24719SVBA

24719 PANAM

A AVE2012-09-28

10:34Back

128.8

370.87 J, b

9< 14

< 5.7< 7.9

< 4.4< 3.7

< 5.8< 0.00023

< 0.12< 14

R24719SVB24719 RAVEN

NA AVE

2010-04-2112:16

Back16

5.928

< 2.49.9

< 3.5< 5.8

< 8.14.6

< 3.8< 5.9

< 0.00024< 0.12

< 3.7R24719SVF

24719 RAVENN

A AVE2010-04-21

12:43Front

201.2

98< 2.3

< 8.8< 3.4

< 5.7< 7.9

< 4.4< 3.7

< 5.8< 0.00023

< 0.12< 3.6

R24719 SVB24719 RAVEN

NA AVE

2012-11-2910:07

Back15

4.7< 27

1.8 J, b< 8.7

< 14< 5.6

< 7.8< 4.3

< 3.7< 5.7

< 0.00023< 0.12

< 14R24719 SVBD

24719 RAVENN

A AVE2012-11-29

10:07Back

154.6

< 271.5 J, b

< 8.7< 14

< 5.6< 7.8

< 4.3< 3.7

< 5.7< 0.00023

< 0.12< 14

R24719 SVH24719 RAVEN

NA AVE

2012-11-2910:11

House16

4.170 b

4.7 J, b< 8.5

< 13< 5.5

< 7.7< 4.2

< 3.6< 5.6

< 0.00023< 0.11

< 14R24719 SVF

24719 RAVENN

A AVE2012-11-29

10:44Front

200.95

< 281.3 J, b

< 8.8< 14

< 5.7< 7.9

< 4.4< 3.7

< 5.8< 0.00023

< 0.12< 14

M24722SVH

24722 MARBELLA AVE

2010-11-2909:19

House21

0.7227

0.77 J, b< 8.8

< 3.4< 5.7

< 7.9< 4.4

< 3.7< 5.8

< 0.00023< 0.12

< 3.6M

24722SVF24722 M

ARBELLA AVE2010-11-29

09:55Front

21< 0.024

120.63 J, b

< 9.1< 3.6

< 5.9< 8.2

< 4.6< 3.9

< 6< 0.00024

< 0.12< 3.8

M24722SVFD

24722 MARBELLA AVE

2010-11-2909:55

Front21

< 0.02416

0.65 J, b< 9

< 3.5< 5.8

< 8.1< 4.5

< 3.8< 5.9

< 0.00024< 0.12

< 3.7M

24722SVB24722 M

ARBELLA AVE2010-11-29

11:03Back

210.096

< 120.74 J, b

< 9.7< 3.8

< 6.3< 8.8

< 4.9< 4.1

< 6.40.00027

< 0.13< 4

M24722SVH

24722 MARBELLA AVE

2012-06-0710:06

House20

1< 19

< 0.31< 6

< 9.3< 3.8

< 5.4< 3

< 2.5< 3.9

< 0.0002< 0.1

< 9.8M

24722SVF24722 M

ARBELLA AVE2012-06-07

10:10Front

210.16

21< 0.3

< 5.8< 9.1

< 3.8< 5.2

< 2.9< 2.5

< 3.8< 0.0002

< 0.1< 9.6

M24722SVFS

24722 MARBELLA AVE

2012-06-0710:10

Front21.4

0.185< 18 U

< 0.74 U< 18 U

< 18 U< 1.8 U

< 1.8 U< 1.8 U

< 1.8 U2.1

< 0.16 U< 18 U

Page 263: Table Proposed Cleanup Levels Groundwater · 10/21/2013  · Table 04 Summery of PrsllMnery Cost ES11motee for Soleening Feasibility Study Former Kest Property Carson, CA GeotFnlenGOneullanle

Table B-2Sub-Slab Soil Vapor Results

Former Kast Property

Carson, California

Residential Properties Sampled Through August 31, 2013

Page 31 of 235

Oxygen

Oxygen/Argon

Carbon Dioxide

AcetoneN

aphthaleneEthanol

2-Butanone (M

ethyl Ethyl Ketone)

ChloroformTetrachloro-

etheneToluene

BenzeneFreon 12

Methane

HeliumCarbon

DisulfideM

OL %

MO

L %M

OL %

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

MO

L %M

OL %

UG

/M3

100.00%100.00%

92.56%52.63%

49.98%18.72%

17.61%16.54%

8.00%7.84%

7.80%6.94%

6.17%5.34%

4.80%Sam

ple IDAddress

Sample D

ateSam

ple Time

Location

AnalyteU

nitsFrequency of D

etection

M24722SVB

24722 MARBELLA AVE

2012-06-0710:49

Back20

0.2830

0.74 J, b< 6.5

< 10< 4.2

< 5.84.8

< 2.7< 4.2

< 0.00022< 0.11

< 11M

24722SVB24722 M

ARBELLA AVE2013-04-11

14:37Back

210.16

432.4 J, b

< 9.1< 14

< 5.9< 8.2

< 4.6< 3.9

< 6< 0.00024

< 0.12< 15

M24722SVBD

24722 MARBELLA AVE

2013-04-1114:37

Back21

0.16< 29

1.3 J, b< 9.1

< 14< 5.9

< 8.2< 4.6

< 3.9< 6

< 0.00024< 0.12

< 15M

24722SVH24722 M

ARBELLA AVE2013-04-11

15:12House

210.76

< 271 J, b

< 8.6< 14

< 5.6< 7.8

< 4.3< 3.6

< 5.7< 0.00023

< 0.11< 14

M24722SVF

24722 MARBELLA AVE

2013-04-1115:15

Front21

0.21< 29

0.99 J, b< 9.1

< 14< 5.9

< 8.2< 4.6

< 3.9< 6

< 0.00024< 0.12

< 15N

24722SVH24722 N

EPTUN

E AVE2010-07-23

13:35House

191

31< 5.9

374.2

< 5.5< 7.6

12270

< 5.5< 0.00022

< 0.11< 3.5

N24722SVG

24722 NEPTU

NE AVE

2010-07-2314:07

Garage

190.49

22< 5.8

< 8.3< 3.2

< 5.4< 7.5

< 4.1< 3.5

< 5.4< 0.00022

< 0.11< 3.4

N24722SVB

24722 NEPTU

NE AVE

2010-07-2314:42

Back20

0.5637

< 615

4.5< 5.6

< 7.8< 4.3

12< 5.7

< 0.00023< 0.11

< 3.6N

24722SVH24722 N

EPTUN

E AVE2012-04-13

15:06House

200.93

221.8 J, b

< 6.1< 9.6

< 4< 5.5

< 3.1< 2.6

< 40.00034

< 0.13< 10

N24722SVG

24722 NEPTU

NE AVE

2012-04-1315:07

Garage

191.6

< 180.79 J, b

17< 9.1

< 3.8< 5.2

< 2.9< 2.5

< 3.8< 0.00024

< 0.12< 9.6

N24722SVG

D24722 N

EPTUN

E AVE2012-04-13

15:07G

arage19

1.7< 18

0.84 J, b< 5.8

< 9.1< 3.8

< 5.2< 2.9

< 2.5< 3.8

< 0.00024< 0.12

< 9.6N

24722SVB24722 N

EPTUN

E AVE2012-04-13

15:49Back

170.87

321.2 J, b

14< 8

< 3.3< 4.6

38< 2.2

4.2< 0.00021

< 0.1< 8.4

P24722SVB24722 PAN

AMA AVE

2010-04-2610:23

Back19

1.929

< 6.618

4.2< 6

< 8.4< 4.7

< 4< 6.1

< 0.00025< 0.12

6P24722SVF

24722 PANAM

A AVE2010-04-26

11:28Front

210.083

22< 6.6

< 9.34.2

< 6< 8.4

< 4.74.2

< 6.1< 0.00025

< 0.12< 3.9

P24722SVFD24722 PAN

AMA AVE

2010-04-2611:28

Front20

0.0847

< 6.5< 9.3

15< 6

< 8.3< 4.6

9.7< 6.1

< 0.00025< 0.12

< 3.8P24722SVH

24722 PANAM

A AVE2010-08-17

13:32House

19< 0.024

410< 6.4

20028

< 5.9< 8.2

< 4.6< 3.9

< 6< 0.00024

0.528.2

P24722SVF24722 PAN

AMA AVE

2011-03-0709:27

Front21

0.2< 11

0.42 J, b< 8.7

< 14< 5.6

< 7.8< 4.4

< 3.7< 5.7

< 0.00023< 0.12

< 14P24722SVFD

24722 PANAM

A AVE2011-03-07

09:27Front

210.2

< 11< 0.33

< 8.7< 14

< 5.6< 7.8

< 4.3< 3.7

< 5.7< 0.00023

< 0.12< 14

P24722SVG24722 PAN

AMA AVE

2011-03-0710:06

Garage

210.23

180.52 J, b

< 8.6< 13

< 5.6< 7.7

< 4.3< 3.6

< 5.6< 0.00023

< 0.11< 14

P24722SVGD

24722 PANAM

A AVE2011-03-07

10:06G

arage21

0.23130

13 J, b12

22< 5.6

< 7.7< 4.3

< 3.6< 5.6

< 0.00023< 0.11

< 14P24722SVB

24722 PANAM

A AVE2011-03-07

10:49Back

181.2

< 110.48 J, b

< 8.7< 14

42< 7.8

< 4.4< 3.7

< 5.7< 0.00023

< 0.12< 14

P24722SVG24722 PAN

AMA AVE

2012-04-2610:06

Garage

200.71

< 197.5 J, b

< 6< 9.3

< 3.8< 5.4

< 3< 2.5

< 3.9< 0.00021

< 0.1< 9.8

P24722SVF24722 PAN

AMA AVE

2012-04-2610:23

Front20

0.2138

4.9 J, b< 6

< 9.3< 3.8

< 5.4< 3

< 2.5< 3.9

< 0.00021< 0.11

< 9.8P24722SVFD

24722 PANAM

A AVE2012-04-26

10:23Front

210.22

< 194.1 J, b

< 6.1< 9.5

< 3.9< 5.5

< 3< 2.6

< 4< 0.00016

< 0.08< 10

P24722SVB24722 PAN

AMA AVE

2012-04-2610:38

Back18

2< 19

2.1 J, b< 6

< 9.3< 3.8

< 5.4< 3

< 2.5< 3.9

< 0.00024< 0.12

< 9.8R24722SVH

24722 RAVENN

A AVE2010-10-25

09:53House

164.2

< 11< 1.3

< 8.8< 3.5

< 5.7< 8

< 4.4< 3.8

< 5.8< 0.00024

< 0.12< 3.6

R24722SVF24722 RAVEN

NA AVE

2010-10-2510:39

Front19

0.9226

< 1.419

4< 6

< 8.3< 4.6

< 3.9< 6

< 0.00024< 0.12

< 3.8R24722SVB

24722 RAVENN

A AVE2010-10-25

11:16Back

172.8

12< 1.4

< 9.4< 3.7

< 6.1< 8.5

< 4.7< 4

< 6.2< 0.00025

< 0.12< 3.9

R24722SVH24722 RAVEN

NA AVE

2012-11-0915:01

House14

5.9< 29

2.1 J, b< 9.3

< 15< 6

< 8.4< 4.7

< 4< 6.1

< 0.00025< 0.12

< 15R24722SVB

24722 RAVENN

A AVE2012-11-09

15:15Back

173

< 280.98 J, b

< 9< 14

< 5.8< 8.1

< 4.5< 3.8

< 5.9< 0.00024

< 0.12< 15

R24722SVF24722 RAVEN

NA AVE

2012-11-0915:39

Front20

1.7< 29

0.86 J, b< 9.1

< 14< 5.9

< 8.2< 4.6

< 3.9< 6

< 0.00024< 0.12

< 15R24722SVB

24722 RAVENN

A AVE2013-05-02

09:54Back

211.1

< 282.3 J, b

< 8.8< 14

5.8< 7.9

< 4.4< 3.7

< 5.8< 0.00023

< 0.12< 14

R24722SVBD24722 RAVEN

NA AVE

2013-05-0209:54

Back21

1.1< 29

1.9 J, b< 9.1

< 14< 5.9

< 8.2< 4.6

< 3.9< 6

< 0.00024< 0.12

< 15R24722SVH

24722 RAVENN

A AVE2013-05-02

10:05House

184.6

361.3 J, b

< 8.9< 14

< 5.8< 8

< 4.5< 3.8

< 5.9< 0.00024

< 0.12< 15

R24722SVF24722 RAVEN

NA AVE

2013-05-0210:31

Front20

2.1< 27

1.1 J, b< 8.7

< 14< 5.6

< 7.8< 4.3

< 3.7< 5.7

< 0.00023< 0.12

< 14M

24723SVB24723 M

ARBELLA AVE2010-03-29

16:23Back

200.069

234.1 J, b

48< 3.8

< 6.222

< 4.8< 4.1

< 6.3< 0.00026

< 0.13< 4

M24723SVH

24723 MARBELLA AVE

2010-04-0712:12

House19

0.6111

< 2.313 J

< 3.5< 5.7

430< 4.4

< 3.8< 5.8

< 0.00024< 0.12

< 3.6M

24723SVF24723 M

ARBELLA AVE2010-07-21

09:24Front

20< 0.023

40< 6.2

94.6

< 5.7< 7.9

69 j3.8 j

< 5.8< 0.00023

< 0.12< 3.6

M24723SVF

24723 MARBELLA AVE

2012-06-2115:14

Front21

0.3826

0.57 J, b< 6.1 PF

< 9.5< 3.9

< 5.5< 3

< 2.6< 4

< 0.00016< 0.08

< 10M

24723SVFD24723 M

ARBELLA AVE2012-06-21

15:14Front

210.36

38< 0.32

< 6.1 PF< 9.5

< 3.9< 5.5

3.4< 2.6

< 4< 0.00016

< 0.08< 10

M24723SVH

24723 MARBELLA AVE

2012-06-2115:21

House13

6.2< 19

0.33 J, b< 6.1 PF

< 9.5< 3.9

< 5.5< 3

< 2.6< 4

< 0.00016< 0.08

< 10M

24723SVB24723 M

ARBELLA AVE2012-06-21

15:47Back

210.49

< 190.45 J, b

< 6.1 PF< 9.5

< 3.9< 5.5

< 3< 2.6

< 4< 0.00016

< 0.08< 10

R24723SVB24723 RAVEN

NA AVE

2010-11-0213:51

Back18

2.412

< 1.4< 9.5

< 3.7< 6.2

< 8.5< 4.7

< 4< 6.2

< 0.00025< 0.13

< 3.9R24723SVH

24723 RAVENN

A AVE2010-11-02

13:54House

182.9

84< 1.4

1313

< 5.8< 8.1

5< 3.8

< 5.9< 0.00024

< 0.12< 3.7

R24723SVF24723 RAVEN

NA AVE

2010-11-0214:27

Front17

3.117

< 1.3< 8.8

< 3.4< 5.7

< 7.9< 4.4

< 3.7< 5.8

< 0.00023< 0.12

< 3.6R24723SVF

24723 RAVENN

A AVE2012-11-08

10:04Front

163.9

< 291.1 J, b

< 9.1< 14

< 5.9< 8.2

< 4.6< 3.9

< 6< 0.00024

< 0.12< 15

R24723SVFD24723 RAVEN

NA AVE

2012-11-0810:04

Front16

3.9< 28

0.77 J, b< 9

< 14< 5.8

< 8.1< 4.5

< 3.8< 5.9

< 0.00024< 0.12

< 15R24723SVH

24723 RAVENN

A AVE2012-11-08

10:23House

183.1

< 28< 0.59

< 9< 14

< 5.8< 8.1

< 4.5< 3.8

< 5.9< 0.00024

0.21< 15

R24723SVB24723 RAVEN

NA AVE

2012-11-0810:40

Back18

3< 28

< 0.59< 9

< 14< 5.8

< 8.1< 4.5

< 3.8< 5.9

< 0.00024< 0.12

< 15R24723SVH

24723 RAVENN

A AVE2013-04-23

10:15House

192.3

32< 0.56 PF

< 8.6< 14

< 5.6< 7.8

< 4.3< 3.6

< 5.7< 0.00023

0.24< 14

R24723SVB24723 RAVEN

NA AVE

2013-04-2310:16

Back19

1.8< 27

< 0.56 PF< 8.6

< 1465

< 7.8< 4.3

< 3.6< 5.7

< 0.00023< 0.11

< 14R24723SVF

24723 RAVENN

A AVE2013-04-23

10:58Front

184.2

36< 0.62 PF

11< 15

< 6.2< 8.5

< 4.7< 4

< 6.2< 0.00025

< 0.13< 16

Page 264: Table Proposed Cleanup Levels Groundwater · 10/21/2013  · Table 04 Summery of PrsllMnery Cost ES11motee for Soleening Feasibility Study Former Kest Property Carson, CA GeotFnlenGOneullanle

Table B-2Sub-Slab Soil Vapor Results

Former Kast Property

Carson, California

Residential Properties Sampled Through August 31, 2013

Page 32 of 235

Oxygen

Oxygen/Argon

Carbon Dioxide

AcetoneN

aphthaleneEthanol

2-Butanone (M

ethyl Ethyl Ketone)

ChloroformTetrachloro-

etheneToluene

BenzeneFreon 12

Methane

HeliumCarbon

DisulfideM

OL %

MO

L %M

OL %

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

MO

L %M

OL %

UG

/M3

100.00%100.00%

92.56%52.63%

49.98%18.72%

17.61%16.54%

8.00%7.84%

7.80%6.94%

6.17%5.34%

4.80%Sam

ple IDAddress

Sample D

ateSam

ple Time

Location

AnalyteU

nitsFrequency of D

etection

N24725SVB

24725 NEPTU

NE AVE

2009-10-0209:53

Back20

0.8117

< 324

3.68.2

< 8.2< 4.6

< 3.9< 6

< 0.00024< 3.8

N24725SVF

24725 NEPTU

NE AVE

2009-10-0210:54

Front21

0.26< 12

< 3.112

< 3.627

< 8.3< 4.6

< 3.9< 6.1

< 0.00025< 3.8

N24725SVH

24725 NEPTU

NE AVE

2010-06-1609:14

House18

1.714

< 2.4< 9.2

< 3.6< 6

< 8.3< 4.6

4.3< 6

< 0.00024< 0.12

< 3.8N

24725SVB24725 N

EPTUN

E AVE2010-06-16

10:30Back

210.68

136 J

14< 3.4

< 5.7< 7.9

8.6< 3.7

< 5.8< 0.00023

< 0.12< 3.6

N24725SVF

24725 NEPTU

NE AVE

2010-06-1611:18

Front21

0.11< 11

< 2.3< 8.8

< 3.4< 5.7

< 7.9< 4.4

< 3.7< 5.8

< 0.00023< 0.12

< 3.6N

24725SVH24725 N

EPTUN

E AVE2012-06-22

14:51House

163.4

< 190.83 J, b

< 6.1 PF< 9.6

< 4< 5.5

< 3.1< 2.6

< 4< 0.00016

0.087< 10

N24725SVB

24725 NEPTU

NE AVE

2012-06-2215:21

Back19

2.7< 19

0.56 J, b< 5.9 PF

< 9.2130

< 5.3< 3

< 2.5< 3.9

< 0.00016< 0.078

< 9.8N

24725SVBD24725 N

EPTUN

E AVE2012-06-22

15:21Back

192.7

< 190.43 J, b

< 5.9 PF< 9.2

130< 5.3

< 3< 2.5

< 3.9< 0.00016

< 0.078< 9.8

N24725SVF

24725 NEPTU

NE AVE

2012-06-2215:27

Front21

0.46< 18

0.47 J, b< 5.9 PF

< 9.210

< 5.3< 2.9

< 2.5< 3.8

< 0.00016< 0.078

< 9.7M

24726SVH24726 M

ARBELLA AVE2010-06-07

09:03House

170.26

58< 2.3

< 8.84.4

6416

< 4.44.4

< 5.8< 0.00023

< 0.12< 3.6

M24726SVB

24726 MARBELLA AVE

2010-06-0710:06

Back17

0.04736

< 2.3< 8.7

3.4 J6

< 7.8< 4.3

5.2< 5.7

< 0.00023< 0.12

< 3.6M

24726SVF24726 M

ARBELLA AVE2010-08-19

08:52Front

200.83

36< 1.3

< 8.64

34< 7.7

< 4.3< 3.6

< 5.6< 0.00023

0.14< 3.6

M24726SVHA

24726 MARBELLA AVE

2012-12-1415:04

House20

< 0.022< 27

3 J, b< 8.4

< 13< 5.5

< 7.6< 4.2

< 3.6< 5.5

< 0.00022< 0.11

< 14M

24726SVG24726 M

ARBELLA AVE2012-12-19

11:07G

arage22

< 0.045< 54

< 1.1< 17

< 27< 11

< 15< 8.5

< 7.2< 11

< 0.00045< 0.23

< 28R24726SVBA

24726 RAVENN

A AVE2011-03-14

10:13Back

155.3

< 11< 1.4

< 9< 14

10< 8.1

< 4.5< 3.8

< 5.9< 0.00024

< 0.12< 15

R24726SVBAD24726 RAVEN

NA AVE

2011-03-1410:13

Back15

5.3< 11

< 1.4< 9

< 1410

< 8.1< 4.5

< 3.8< 5.9

< 0.00024< 0.12

< 15R24726SVH

24726 RAVENN

A AVE2011-03-14

11:00House

200.55

13< 1.3

< 8.8< 14

< 5.7< 7.9

< 4.4< 3.7

< 5.8< 0.00023

< 0.12< 14

R24726SVH24726 RAVEN

NA AVE

2012-12-2014:58

House19

2.1< 27

1.3 J, b< 8.6

< 14< 5.6

< 7.8< 4.3

< 3.6< 5.7

< 0.00023< 0.11

< 14R24726SVG

24726 RAVENN

A AVE2012-12-20

15:01G

arage20

1.653

2.2 J, b< 8.8

< 14< 5.7

< 7.9< 4.4

< 3.7< 5.8

< 0.00023< 0.12

< 14R24726SVBA

24726 RAVENN

A AVE2012-12-20

15:33Back

174.5

< 281.4 J, b

< 8.8< 14

< 5.7< 7.9

< 4.4< 3.7

< 5.8< 0.00023

< 0.12< 14

N24728SVG

24728 NEPTU

NE AVE

2010-05-1414:56

Garage

201

13< 6.3

< 9< 3.5

< 5.8210

< 4.5< 3.8

< 5.9< 0.00024

< 0.12< 3.7

N24728SVH2

24728 NEPTU

NE AVE

2010-05-1415:49

House17

1.3390

< 6.443

15< 5.9

< 8.2< 4.5

< 3.8< 6

< 0.00024< 0.12

< 3.8N

24728SVH24728 N

EPTUN

E AVE2010-05-14

16:37House

210.3

190< 6.2

12013

< 5.7< 8

< 4.4< 3.8

< 5.8< 0.00024

< 0.12< 3.6

N24728SVH2

24728 NEPTU

NE AVE

2010-09-2109:25

House13

4.615

3.4 J, b< 8.1

3.6< 5.3

< 7.3< 4.1

< 3.4< 5.3

< 0.000220.34

3.9N

24728SVH24728 N

EPTUN

E AVE2010-09-21

10:07House

190.62

183 J, b

135.3

< 5.7< 7.9

< 4.4< 3.7

< 5.8< 0.00023

< 0.12< 3.6

N24728SVG

24728 NEPTU

NE AVE

2010-09-2110:46

Garage

172

141 J, b

< 8.43.4

< 5.5< 7.6

< 4.2< 3.6

< 5.5< 0.00022

< 0.11< 3.5

N24728SVG

D24728 N

EPTUN

E AVE2010-09-21

10:46G

arage17

211

0.55 J, b< 8.4

< 3.3< 5.5

< 7.6< 4.2

< 3.6< 5.5

< 0.00022< 0.11

< 3.5N

24728SVG24728 N

EPTUN

E AVE2013-05-31

09:54G

arage19

2.651

< 2.7< 9.3

< 14< 6

< 8.3< 4.6

< 3.9< 6.1

< 0.00025< 0.12

< 15N

24728SVGS

24728 NEPTU

NE AVE

2013-05-3109:54

Garage

19.82.61

< 20 U< 0.73 U

< 20 U< 20 U

< 2 U< 2 U

< 2 U< 2 U

< 2 U< 0.16 U

< 20 UN

24728SVH24728 N

EPTUN

E AVE2013-05-31

10:23House

210.85

620< 2.6

< 8.8< 14

< 5.7< 7.9

< 4.4< 3.7

< 5.8< 0.00023

< 0.12< 14

P24728SVH24728 PAN

AMA AVE

2010-11-0809:17

House20

0.1315

3 J, b51 J

< 3.6< 5.9

< 8.2< 4.6

< 3.9< 6

0.00027< 0.12

< 3.8P24728SVB

24728 PANAM

A AVE2010-11-08

10:09Back

172.8

< 110.87 J, b

< 8.9 UJ

< 3.5< 5.8

< 8< 4.5

< 3.8< 5.9

< 0.00024< 0.12

< 3.7P24728SVG

24728 PANAM

A AVE2010-11-08

11:20G

arage21

0.1< 11

1.4 J, b< 9.1 U

J< 3.6

< 5.9< 8.2

< 4.6< 3.9

< 6< 0.00024

< 0.12< 3.8

P24728SVGS

24728 PANAM

A AVE2010-11-08

11:20G

arage21.5

< 0.2223

0.69 J< 17

< 17< 1.7

< 1.7< 1.7

< 1.72

< 0.22< 17

P24728SVG24728 PAN

AMA AVE

2012-11-0210:05

Garage

210.61

< 322.1 J, b

< 10< 16

< 6.6< 9.1

< 5.1< 4.3

< 6.6< 0.00027

< 0.13< 17

P24728SVGD

24728 PANAM

A AVE2012-11-02

10:05G

arage20

0.6< 31

1.6 J, b< 9.7

< 15< 6.3

< 8.8< 4.9

< 4.1< 6.4

< 0.00026< 0.13

< 16P24728SVB

24728 PANAM

A AVE2012-11-02

10:20Back

164.1

< 290.9 J, b

< 9.1< 14

< 5.9< 8.2

< 4.6< 3.9

< 6< 0.00024

< 0.12< 15

P24728SVB24728 PAN

AMA AVE

2013-06-1815:28

Back17

4.5< 27

0.78 J, b< 8.4

< 13< 5.5

< 7.6< 4.2

< 3.6< 5.5

< 0.00022< 0.11

< 14P24728SVH2

24728 PANAM

A AVE2013-06-18

15:32House

200.74

< 283.4 J, b

< 9< 14

< 5.8< 8.1

< 4.5< 3.8

< 5.9< 0.00024

< 0.12< 15

P24728SVG24728 PAN

AMA AVE

2013-06-1816:07

Garage

210.56

< 32< 0.9

< 10< 16

< 6.5< 9.1

< 5< 4.3

< 6.6< 0.00027

< 0.13< 17

N24729SVB

24729 NEPTU

NE AVE

2009-09-1809:13

Back16

3.6100

7.6 J< 9

8.3< 5.8

< 8.1< 4.5

< 3.8< 5.9

< 0.00024< 3.7

N24729SVF

24729 NEPTU

NE AVE

2009-09-1810:38

Front20

0.069100

8.6 J< 9.9

972

< 9< 5

< 4.2< 6.5

< 0.0002638

N24729SVH

24729 NEPTU

NE AVE

2010-07-0809:11

House19

1.329

< 2.3 Q< 8.6

6< 5.6

< 7.8< 4.3

< 3.6< 5.7

< 0.00023< 0.11

< 3.6N

24729SVF24729 N

EPTUN

E AVE2010-07-08

09:54Front

201.3

< 9.7< 2 Q

< 7.7< 3

8.5< 7

< 3.9< 3.3

< 5.1< 0.0002

< 0.1< 3.2

N24729SVFD

24729 NEPTU

NE AVE

2010-07-0809:54

Front20

1.343

< 2.1 Q< 7.9

6.38.3

< 7.1< 3.9

< 3.3< 5.2

< 0.00021< 0.1

3.9N

24729SVB24729 N

EPTUN

E AVE2010-07-08

10:54Back

183.9

34< 2.4 Q

< 9< 3.5

< 5.8< 8.1

< 4.5< 3.8

< 5.9< 0.00024

< 0.12< 3.7

N24729SVF

24729 NEPTU

NE AVE

2010-08-2413:35

Front18

2.633

2.6 J, b22

415

< 8.3< 4.6

5.9< 6

< 0.00024< 0.12

< 3.8N

24729SVF24729 N

EPTUN

E AVE2012-10-19

14:30Front

201.6

< 241.1 J, b

< 7.7< 12

9< 7

< 3.9< 3.3

< 5.1< 0.0002

< 0.1< 13

N24729SVB

24729 NEPTU

NE AVE

2012-10-1914:56

Back17

4.3< 28

< 0.58 PF< 8.8

< 14< 5.7

< 7.9< 4.4

< 3.7< 5.8

< 0.00023< 0.12

< 14N

24729SVH24729 N

EPTUN

E AVE2012-10-19

15:20House

182.5

303.4 J, b

< 9.5< 15

< 6.2< 8.5

< 4.7< 4

< 6.2< 0.00025

< 0.13< 16

R24729SVB24729 RAVEN

NA AVE

2010-07-1413:57

Back17

0.9141

< 2.540

4.27.4

< 8.6< 4.8

7.2< 6.2

< 0.00025< 0.13

< 3.9R24729SVH

24729 RAVENN

A AVE2010-07-14

14:44House

172.9

87< 2.4

204

< 5.9< 8.2

< 4.6< 3.9

< 6< 0.00024

< 0.1211

Page 265: Table Proposed Cleanup Levels Groundwater · 10/21/2013  · Table 04 Summery of PrsllMnery Cost ES11motee for Soleening Feasibility Study Former Kest Property Carson, CA GeotFnlenGOneullanle

Table B-2Sub-Slab Soil Vapor Results

Former Kast Property

Carson, California

Residential Properties Sampled Through August 31, 2013

Page 33 of 235

Oxygen

Oxygen/Argon

Carbon Dioxide

AcetoneN

aphthaleneEthanol

2-Butanone (M

ethyl Ethyl Ketone)

ChloroformTetrachloro-

etheneToluene

BenzeneFreon 12

Methane

HeliumCarbon

DisulfideM

OL %

MO

L %M

OL %

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

MO

L %M

OL %

UG

/M3

100.00%100.00%

92.56%52.63%

49.98%18.72%

17.61%16.54%

8.00%7.84%

7.80%6.94%

6.17%5.34%

4.80%Sam

ple IDAddress

Sample D

ateSam

ple Time

Location

AnalyteU

nitsFrequency of D

etection

R24729SVF24729 RAVEN

NA AVE

2010-07-1415:25

Front18

225

< 2.4< 9

< 3.57.2

< 8.1< 4.5

< 3.8< 5.9

< 0.00024< 0.12

< 3.7R24729SVH

24729 RAVENN

A AVE2012-08-24

14:48House

173.4

300.84 J, b

14< 14

< 5.6< 7.8

< 4.4< 3.7

< 5.7< 0.00023

< 0.12< 14

R24729SVF24729 RAVEN

NA AVE

2012-08-2414:49

Front18

3.6< 27

1.1 J, b< 8.7

< 14< 5.6

< 7.8< 4.3

< 3.7< 5.7

< 0.00023< 0.12

< 14R24729SVB

24729 RAVENN

A AVE2012-08-24

15:18Back

183.1

351.2 J, b

< 9.5< 15

< 6.2< 8.5

< 4.7< 4

< 6.2< 0.00025

< 0.13< 16

R24729SVB24729 RAVEN

NA AVE

2013-06-2015:29

Back17

3.832

< 0.87< 9.7

< 15< 6.3

< 8.7< 4.8

< 4.1< 6.4

< 0.00026< 0.13

< 16R24729SVH

24729 RAVENN

A AVE2013-06-20

15:31House

173.4

30< 0.79

< 8.8< 14

< 5.7< 7.9

< 4.4< 3.7

< 5.8< 0.00022

< 0.11< 14

R24729SVF24729 RAVEN

NA AVE

2013-06-2016:01

Front18

4.5< 29

< 0.84< 9.3

< 15< 6

< 8.4< 4.7

< 4< 6.1

< 0.00025< 0.12

< 15M

24732SVF24732 M

ARBELLA AVE2010-07-01

09:40Front

190.43

30< 2.4

109

< 5.9< 8.2

< 4.6< 3.9

< 6< 0.00024

< 0.12< 3.8

M24732SVB

24732 MARBELLA AVE

2010-07-0110:19

Back18

0.6925

< 2.410

3.611

< 8.2< 4.6

< 3.9< 6

< 0.00024< 0.12

< 3.8M

24732SVH24732 M

ARBELLA AVE2013-01-11

09:47House

191.4

< 281 J, b

< 8.8< 14

< 5.7< 8

14 b< 3.8

< 5.8< 0.00024

< 0.12< 15

M24732SVB

24732 MARBELLA AVE

2013-01-1110:12

Back20

0.84< 29

2.2 J, b38 j

< 14< 5.9

< 8.2< 4.6

< 3.9< 6

< 0.00024< 0.12

< 15M

24732SVBD24732 M

ARBELLA AVE2013-01-11

10:12Back

200.84

< 293.7 J, b

9.2 j< 14

< 5.9< 8.2

< 4.6< 3.9

< 6< 0.00024

< 0.12< 15

M24732SVF

24732 MARBELLA AVE

2013-01-1110:16

Front21

0.71< 27

1.3 J, b< 8.6

< 13< 5.6

< 7.7< 4.3

< 3.6< 5.6

< 0.00023< 0.11

< 14M

24732SVH24732 M

ARBELLA AVE2013-05-23

10:13House

191.5

< 282.1 J, b

< 9< 14

< 5.8< 8.1

< 4.5< 3.8

< 5.9< 0.00024

< 0.12< 15

M24732SVB

24732 MARBELLA AVE

2013-05-2310:14

Back19

1.9170 j

1.2 J, b< 8.9

< 14< 5.8

< 86.5

< 3.8< 5.9

< 0.00024< 0.12

< 15M

24732SVBD24732 M

ARBELLA AVE2013-05-23

10:14Back

191.9

43 j0.9 J, b

< 8.7< 14

< 5.7< 7.9

< 4.4< 3.7

< 5.7< 0.00023

< 0.12< 14

M24732SVF

24732 MARBELLA AVE

2013-05-2310:36

Front19

232

0.96 J, b< 9

< 14< 5.8

< 8.1< 4.5

< 3.8< 5.9

< 0.00024< 0.12

< 15N

24732SVH24732 N

EPTUN

E AVE2010-09-20

14:13House

200.58

841.7 J, b

< 8.213

< 5.3< 7.4

7.7< 3.5

< 5.40.026

1.3< 3.4

N24732SVHD

24732 NEPTU

NE AVE

2010-09-2014:13

House20

0.5872

1.3 J, b< 8.2

11< 5.3

< 7.46.7

< 3.5< 5.4

0.0281.3

< 3.4N

24732SVB24732 N

EPTUN

E AVE2010-09-20

15:13Back

127.9

120.99 J, b

< 8.4< 3.3

20< 7.6

< 4.2< 3.6

< 5.5< 0.00022

< 0.11< 3.5

N24732SVF

24732 NEPTU

NE AVE

2010-09-2016:00

Front20

0.25< 31

3.4 J, b< 24

< 9.6< 16

< 22< 12

< 10< 16

< 0.00024< 0.12

< 10N

24732SVHA24732 N

EPTUN

E AVE2011-02-18

09:09House

200.59

< 11< 0.35

< 9.1< 3.6

< 5.9< 8.2

< 4.6< 3.9

< 6< 0.00024

< 0.12< 3.8

N24732SVF

24732 NEPTU

NE AVE

2011-02-1809:52

Front21

0.2654

< 0.3410

15< 5.8

< 8.16.8

< 3.8< 5.9

< 0.00024< 0.12

4.4N

24732SVFS24732 N

EPTUN

E AVE2011-02-18

09:52Front

220.266

< 17< 1.3

< 17< 17

< 1.7< 1.7

< 1.7< 1.7

2.4< 0.16

< 17N

24732SVB24732 N

EPTUN

E AVE2011-02-18

10:42Back

134.7

13< 0.34

23< 3.4

< 5.7< 7.9

< 4.4< 3.7

< 5.80.00092

< 0.12< 3.6

N24732SVBS

24732 NEPTU

NE AVE

2011-02-1810:42

Back14.1

5.39< 17

< 1.3< 17

< 172.9

< 1.7< 1.7

< 1.71.9

< 0.16< 17

N24732SVF

24732 NEPTU

NE AVE

2011-03-1009:56

Front21

0.2114

< 0.33 UJ

< 8.6< 14

< 5.6< 7.8

15< 3.6

< 5.7< 0.00023

< 0.11< 14

N24732SVFS

24732 NEPTU

NE AVE

2011-03-1009:56

Front21.9

0.215< 18

< 1.1< 18

< 18< 1.8

< 1.8< 1.8

< 1.82.5

< 0.17< 18

N24732SVHA

24732 NEPTU

NE AVE

2011-03-1010:38

House20

114

0.67 J, b< 7.7

< 12< 5

< 7< 3.9

< 3.3< 5.1

< 0.0002< 0.1

< 13N

24732SVB24732 N

EPTUN

E AVE2011-03-10

11:13Back

163.4

18< 0.34 U

J< 9

< 14< 5.8

< 8.1< 4.5

< 3.8< 5.9

0.014< 0.12

< 15P24732SVF

24732 PANAM

A AVE2010-04-22

15:11Front

210.16

60< 2.3

9.424

< 5.7< 7.9

< 4.4< 3.7

< 5.8< 0.00023

< 0.12< 3.6

P24732SVB24732 PAN

AMA AVE

2010-04-2217:02

Back21

0.1614

< 2.312

< 3.4< 5.7

< 7.9< 4.4

< 3.7< 5.8

< 0.00023< 0.12

4P24732SVH

24732 PANAM

A AVE2010-04-23

10:34House

200.31

663.9 J, b

115.2

< 5.5< 7.6

< 4.214

< 5.5< 0.00022

< 0.11< 3.5

P24732SVH24732 PAN

AMA AVE

2010-08-3113:58

House20

0.4617

< 1.314

4< 5.7

< 7.9< 4.4

< 3.7< 5.8

< 0.00023< 0.12

< 3.6P24732SVB

24732 PANAM

A AVE2010-08-31

14:36Back

200.36

26< 1.4

< 9.1< 3.6

< 5.9< 8.2

< 4.6< 3.9

< 6< 0.00024

< 0.124.1

P24732SVBD24732 PAN

AMA AVE

2010-08-3114:36

Back20

0.3621

17 J, b< 9.1

< 3.6< 5.9

< 8.2< 4.6

< 3.9< 6

< 0.00024< 0.12

< 3.8P24732SVF

24732 PANAM

A AVE2010-08-31

15:16Front

210.19

47< 1.4

206.6

< 6.1< 8.5

< 4.7< 4

< 6.2< 0.00025

< 0.12< 3.9

P24732SVH24732 PAN

AMA AVE

2012-06-1414:49

House20

0.34< 19

0.35 J, b< 6

< 9.3< 3.8

< 5.4< 3

< 2.5< 3.9

< 0.00016< 0.079

< 9.8P24732SVF

24732 PANAM

A AVE2012-06-14

15:01Front

210.086

< 181.5 J, b

< 5.7< 9

< 3.7< 5.2

< 2.9< 2.4

< 3.8< 0.00015

0.1< 9.5

P24732SVFD24732 PAN

AMA AVE

2012-06-1415:01

Front21

0.081< 18

0.46 J, b< 5.7

< 9< 3.7

< 5.2< 2.9

< 2.4< 3.8

< 0.000150.1

< 9.5P24732SVB

24732 PANAM

A AVE2012-06-14

15:27Back

210.22

< 180.45 J, b

< 5.8< 9.1

< 3.8< 5.2

23< 2.5

< 3.8< 0.00016

< 0.078< 9.6

R24732SVH24732 RAVEN

NA AVE

2010-10-1109:20

House18

1.215

< 1.3< 8.6

< 3.4< 5.6

< 7.8< 4.3

< 3.6< 5.7

< 0.00023< 0.11

< 3.6R24732SVG

24732 RAVENN

A AVE2010-10-11

10:23G

arage9.7

4.818

< 1.3< 8.8

< 3.4< 5.7

< 7.9< 4.4

< 3.7< 5.8

< 0.00023< 0.12

< 3.6R24732SVG

S24732 RAVEN

NA AVE

2010-10-1110:23

Garage

10.66.17

21< 1.3

< 17< 17

1.8< 1.7

< 1.7< 1.7

2< 0.16

< 17R24732SVB

24732 RAVENN

A AVE2010-10-11

11:09Back

180.15

38< 1.3

< 8.85.1

180< 7.9

< 4.4< 3.7

< 5.8< 0.00023

< 0.12< 3.6

R24732SVG24732 RAVEN

NA AVE

2012-06-2210:00

Garage

127.2

< 19< 0.32

< 6.1 PF< 9.5

< 3.9< 5.5

< 3< 2.6

< 4< 0.00016

< 0.08< 10

R24732SVB24732 RAVEN

NA AVE

2012-06-2210:11

Back20

1.1< 20

< 0.33< 6.3 PF

< 9.9< 4.1

< 5.7< 3.2

< 2.7< 4.2

< 0.00017< 0.084

< 10R24732SVBS

24732 RAVENN

A AVE2012-06-22

10:11Back

201.13

< 18 U< 0.75 U

< 18 U< 18 U

< 1.8 U< 1.8 U

< 1.8 U< 1.8 U

2< 0.17 U

< 18 UR24732SVH

24732 RAVENN

A AVE2012-06-22

10:33House

201.3

20< 0.31

< 5.9 PF< 9.2

< 3.8< 5.3

< 3< 2.5

< 3.9< 0.00016

0.13< 9.8

M24733SVH

24733 MARBELLA AVE

2010-08-0609:12

House20

0.3100

< 6.428

15< 5.9

< 8.2< 4.6

< 3.9< 6

< 0.000240.27

< 3.8M

24733SVG24733 M

ARBELLA AVE2010-08-06

09:53G

arage21

0.2130

< 6.3< 9

4.5< 5.8

< 8.1< 4.5

< 3.8< 5.9

< 0.00024< 0.12

20M

24733SVGD

24733 MARBELLA AVE

2010-08-0609:53

Garage

200.21

18< 6.3

< 93.6

< 5.8< 8.1

< 4.5< 3.8

< 5.9< 0.00024

< 0.12< 3.7

Page 266: Table Proposed Cleanup Levels Groundwater · 10/21/2013  · Table 04 Summery of PrsllMnery Cost ES11motee for Soleening Feasibility Study Former Kest Property Carson, CA GeotFnlenGOneullanle

Table B-2Sub-Slab Soil Vapor Results

Former Kast Property

Carson, California

Residential Properties Sampled Through August 31, 2013

Page 34 of 235

Oxygen

Oxygen/Argon

Carbon Dioxide

AcetoneN

aphthaleneEthanol

2-Butanone (M

ethyl Ethyl Ketone)

ChloroformTetrachloro-

etheneToluene

BenzeneFreon 12

Methane

HeliumCarbon

DisulfideM

OL %

MO

L %M

OL %

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

MO

L %M

OL %

UG

/M3

100.00%100.00%

92.56%52.63%

49.98%18.72%

17.61%16.54%

8.00%7.84%

7.80%6.94%

6.17%5.34%

4.80%Sam

ple IDAddress

Sample D

ateSam

ple Time

Location

AnalyteU

nitsFrequency of D

etection

M24733SVB

24733 MARBELLA AVE

2010-08-0610:38

Back20

0.2136

< 6.29.9

7.8< 5.7

38< 4.4

18< 5.8

< 0.00023< 0.12

< 3.6M

24733SVG24733 M

ARBELLA AVE2012-06-08

14:36G

arage22

0.11< 19

0.51 J, b< 6

< 9.3< 3.8

< 5.411 j

< 2.5< 3.9

< 0.00016< 0.079

< 9.8M

24733SVGD

24733 MARBELLA AVE

2012-06-0814:36

Garage

220.12

< 190.55 J, b

< 6< 9.3

< 3.8< 5.4

3 j< 2.5

< 3.9< 0.00016

< 0.079< 9.8

M24733SVB

24733 MARBELLA AVE

2012-06-0815:08

Back22

0.4< 19

0.4 J, b< 6.1

< 9.5< 3.9

< 5.5< 3

< 2.6< 4

< 0.00016< 0.08

< 10M

24733SVB24733 M

ARBELLA AVE2013-04-04

14:39Back

210.4

< 250.89 J, b

< 8.1< 13

< 5.217

< 4< 3.4

< 5.3< 0.00021

< 0.11< 13

M24733SVHA

24733 MARBELLA AVE

2013-04-0414:47

House17

0.23< 21

0.48 J, b< 6.6

< 10< 4.3

< 5.9< 3.3

< 2.8< 4.3

< 0.00018< 0.088

< 11M

24733SVG24733 M

ARBELLA AVE2013-04-04

15:08G

arage20

0.086< 22

0.46 J, b< 7

< 11< 4.5

< 6.3< 3.5

3.6< 4.6

< 0.00018< 0.092

< 12P24733SVH

24733 PANAM

A AVE2011-01-27

09:40House

191.5

< 112.6 J, b

< 8.8< 3.4

< 5.7< 7.9

< 4.4< 3.7

< 5.8< 0.00023

< 0.12< 3.6

P24733SVF24733 PAN

AMA AVE

2011-01-2710:20

Front21

< 0.022240

2.5 J, b< 8.4

6.4< 5.5

< 7.6< 4.2

< 3.6< 5.5

< 0.00022< 0.11

< 3.5P24733SVFS

24733 PANAM

A AVE2011-01-27

10:20Front

21.6< 0.16

300< 1.4

< 17< 17

< 1.7< 1.7

< 1.7< 1.7

2.7< 0.16

< 17P24733SVB

24733 PANAM

A AVE2011-01-27

11:04Back

210.098

981.8 J, b

< 9.2< 3.6

300< 8.3

< 4.6< 3.9

< 6< 0.00024

< 0.12< 3.8

P24733SVB24733 PAN

AMA AVE

2013-02-2109:54

Back20

0.14< 27

15 J, b< 8.6

< 14< 5.6

< 7.85 j

18 j< 5.7

< 0.00023< 0.11

< 14P24733SVBS

24733 PANAM

A AVE2013-02-21

09:54Back

21.80.135 K

< 19 U< 0.79 U

< 19 U< 19 U

< 1.9 U< 1.9 U

< 1.9 U< 1.9 U

< 1.9 U< 0.15 U

< 19 UP24733SVH

24733 PANAM

A AVE2013-02-21

10:06House

182

< 292.3 J, b

< 9.1< 14

< 5.9< 8.2

< 4.6< 3.9

< 60.0003

< 0.12< 15

P24733SVF24733 PAN

AMA AVE

2013-02-2110:36

Front19

0.63< 29

1.7 J, b< 9.1

< 14< 5.9

< 8.2< 4.6

< 3.9< 6

< 0.00024< 0.12

< 15P24733SVH

24733 PANAM

A AVE2013-07-23

09:48House

182.7

702.8 J, b

< 9.1< 14

< 5.9< 8.2

< 4.6< 3.9

< 6< 0.00024

< 0.12< 15

P24733SVB24733 PAN

AMA AVE

2013-07-2309:51

Back21

0.56< 28

1.6 J, b< 9

< 14< 5.8

< 8.1< 4.5

< 3.8< 5.9

< 0.00024< 0.12

< 15P24733SVBD

24733 PANAM

A AVE2013-07-23

09:51Back

200.54

280.86 J, b

< 8.8< 14

< 5.7< 7.9

< 4.4< 3.7

< 5.8< 0.00023

< 0.12< 14

P24733SVF24733 PAN

AMA AVE

2013-07-2310:10

Front19

1.862

1 J, b< 8.6

< 14< 5.6

< 7.8< 4.3

< 3.6< 5.7

< 0.00023< 0.11

< 14R24733SVH

24733 RAVENN

A AVE2010-04-08

13:49House

192.1

20< 2.3

< 8.63.8

< 5.615

< 4.3< 3.6

< 5.7< 0.00023

< 0.11< 3.6

R24733SVF24733 RAVEN

NA AVE

2010-04-0814:57

Front20

0.1919

< 2.3< 8.6

4.68.9

< 7.8< 4.3

< 3.6< 5.7

< 0.00023< 0.11

< 3.6R24733SVB

24733 RAVENN

A AVE2010-04-08

15:49Back

190.59

24< 2.3

< 8.85.4

< 5.723

< 4.4< 3.7

< 5.8< 0.00023

< 0.12< 3.6

R24733SVH24733 RAVEN

NA AVE

2012-07-2710:03

House19

1.941

< 3< 6

< 9.3< 3.8

6.1< 3

< 2.5< 3.9

< 0.00016< 0.079

< 9.8R24733SVB

24733 RAVENN

A AVE2012-07-27

10:42Back

201.2

< 19< 3

< 6.1< 9.5

< 3.9< 5.5

< 3< 2.6

< 4< 0.00016

< 0.08< 10

R24733SVBD24733 RAVEN

NA AVE

2012-07-2710:42

Back20

1.2< 19

< 3< 6.1

< 9.5< 3.9

< 5.5< 3

< 2.6< 4

< 0.00016< 0.08

< 10R24733SVF

24733 RAVENN

A AVE2012-07-27

10:46Front

200.54

22< 2.9

< 5.8< 9.1

25< 5.2

< 2.9< 2.5

< 3.8< 0.00016

< 0.078< 9.6

N24735SVH

24735 NEPTU

NE AVE

2010-11-1709:23

House19

1.1120

1.8 J, b250

11< 5.8

< 8.1< 4.5

< 3.8< 5.9

< 0.00024< 0.12

< 3.7N

24735SVF24735 N

EPTUN

E AVE2010-11-17

10:19Front

210.12

< 110.44 J, b

< 8.6< 3.4

< 5.6< 7.8

< 4.3< 3.6

< 5.7< 0.00023

< 0.11< 3.6

N24735SVB

24735 NEPTU

NE AVE

2010-11-1711:03

Back21

0.1451

0.44 J, b< 8.8

6.57.9

< 7.9< 4.4

< 3.7< 5.8

< 0.00023< 0.12

< 3.6N

24735SVBD24735 N

EPTUN

E AVE2010-11-17

11:03Back

210.13

510.41 J, b

< 8.87.4

8.2< 7.9

< 4.4< 3.7

< 5.8< 0.00023

< 0.12< 3.6

N24735SVB

24735 NEPTU

NE AVE

2012-11-1510:03

Back21

0.59< 27

< 0.57< 8.7

< 148.8

< 7.8< 4.4

< 3.7< 5.7

< 0.00023< 0.12

< 14N

24735SVBD24735 N

EPTUN

E AVE2012-11-15

10:03Back

210.58

< 27< 0.57

< 8.7< 14

9.1< 7.8

< 4.4< 3.7

< 5.7< 0.00023

< 0.12< 14

N24735SVF

24735 NEPTU

NE AVE

2012-11-1510:45

Front21

0.47< 28

< 0.59< 9

< 14< 5.8

< 8.1< 4.5

< 3.8< 5.9

< 0.00024< 0.12

< 15N

24735SVH24735 N

EPTUN

E AVE2012-11-20

13:43House

191.2

541.7 J, b

55< 14

< 5.9< 8.2

< 4.6< 3.9

< 6< 0.00024

< 0.12< 15

N24735SVB

24735 NEPTU

NE AVE

2013-06-1114:49

Back20

1.247

< 2.6< 9

< 149.9

< 8.1< 4.5

< 3.8< 5.9

< 0.00024< 0.12

< 15N

24735SVH24735 N

EPTUN

E AVE2013-06-11

15:00House

191

53< 2.5

70< 14

< 5.6< 7.8

< 4.3< 3.7

< 5.7< 0.00023

0.3< 14

N24735SVF

24735 NEPTU

NE AVE

2013-06-1115:23

Front21

0.65< 28

< 2.6< 9

< 1411

< 8.1< 4.5

< 3.8< 5.9

< 0.00024< 0.12

< 15R24736SVH

24736 RAVENN

A AVE2010-04-28

14:11House

191.4

16< 2.4

26< 3.5

< 5.8< 8.1

< 4.5< 3.8

< 5.9< 0.00024

< 0.12< 3.7

R24736SVF24736 RAVEN

NA AVE

2010-04-2815:04

Front20

0.1417

< 2.414

< 3.6< 5.9

< 8.2< 4.6

4.7< 6

< 0.00024< 0.12

26R24736SVFS

24736 RAVENN

A AVE2010-04-28

15:04Front

21.7< 0.16

360.56 J

24< 18

1.8< 1.8

< 1.82.8

2.3< 0.16

< 18R24736SVB

24736 RAVENN

A AVE2010-04-28

15:50Back

210.26

20< 2.3

13< 3.4

< 5.6< 7.7

< 4.3< 3.6

< 5.6< 0.00023

< 0.115.1

R24736SVB24736 RAVEN

NA AVE

2013-06-0414:50

Back20

0.59< 28

< 2.6< 8.9

< 146.4

< 8< 4.5

< 3.8< 5.9

< 0.00024< 0.12

< 15R24736SVH

24736 RAVENN

A AVE2013-06-04

14:59House

182.1

43< 2.5

< 8.7< 14

< 5.6< 7.8

< 4.4< 3.7

< 5.7< 0.00023

< 0.12< 14

R24736SVF24736 RAVEN

NA AVE

2013-06-0415:18

Front21

0.5831

< 2.8< 9.5

< 15< 6.2

< 8.5< 4.7

< 4< 6.2

< 0.00025< 0.13

< 16M

24737SVB24737 M

ARBELLA AVE2010-04-30

09:18Back

210.3

32< 6.3

3818

< 5.830

< 4.5< 3.8

< 5.9< 0.00024

< 0.12< 3.7

M24737SVF

24737 MARBELLA AVE

2010-04-3010:04

Front20

0.5136

< 6.338

9.4< 5.8

46< 4.5

< 3.8< 5.9

< 0.00024< 0.12

< 3.7M

24737SVH24737 M

ARBELLA AVE2010-04-30

11:03House

201.1

49< 6.2

163.7

< 5.745

< 4.49.1

< 5.80.00028

< 0.124.1

M24737SVH

24737 MARBELLA AVE

2010-09-0309:56

House19

1.255

< 1.414

3.4< 5.6

51< 4.3

< 3.6< 5.7

0.0004< 0.11

4.4M

24737SVHS24737 M

ARBELLA AVE2010-09-03

09:56House

20.41.44

18< 1.3

< 17< 17

< 1.745

< 1.7< 1.7

2.1< 0.15

< 17M

24737SVF24737 M

ARBELLA AVE2010-09-03

10:37Front

191.6

20< 1.4

< 8.8< 3.4

< 5.744

< 4.4< 3.7

< 5.8< 0.00023

< 0.12< 3.6

M24737SVB

24737 MARBELLA AVE

2010-09-0312:02

Back20

0.6925

< 2.924

< 7.1< 12

41< 9.1

< 7.7< 12

< 0.00024< 0.12

< 7.5M

24737SVB24737 M

ARBELLA AVE2012-12-07

15:05Back

191.6

291.2 J, b

< 9.1< 14

< 5.933

< 4.6< 3.9

< 6< 0.00024

< 0.12< 15

Page 267: Table Proposed Cleanup Levels Groundwater · 10/21/2013  · Table 04 Summery of PrsllMnery Cost ES11motee for Soleening Feasibility Study Former Kest Property Carson, CA GeotFnlenGOneullanle

Table B-2Sub-Slab Soil Vapor Results

Former Kast Property

Carson, California

Residential Properties Sampled Through August 31, 2013

Page 35 of 235

Oxygen

Oxygen/Argon

Carbon Dioxide

AcetoneN

aphthaleneEthanol

2-Butanone (M

ethyl Ethyl Ketone)

ChloroformTetrachloro-

etheneToluene

BenzeneFreon 12

Methane

HeliumCarbon

DisulfideM

OL %

MO

L %M

OL %

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

MO

L %M

OL %

UG

/M3

100.00%100.00%

92.56%52.63%

49.98%18.72%

17.61%16.54%

8.00%7.84%

7.80%6.94%

6.17%5.34%

4.80%Sam

ple IDAddress

Sample D

ateSam

ple Time

Location

AnalyteU

nitsFrequency of D

etection

M24737SVH

24737 MARBELLA AVE

2012-12-0715:12

House19

1.2< 28

1 J, b< 9

< 14< 5.8

264.6

< 3.8< 5.9

0.00076< 0.12

< 15M

24737SVF24737 M

ARBELLA AVE2012-12-07

15:42Front

181.4

< 280.63 J, b

< 8.8< 14

< 5.718

< 4.4< 3.7

< 5.8< 0.00023

< 0.12< 14

M24737SVB

24737 MARBELLA AVE

2013-05-2409:56

Back21

0.6132 j

< 2.5< 8.6 PF

< 14< 5.6

21< 4.3

< 3.6< 5.7

< 0.00023< 0.11

< 14M

24737SVBD24737 M

ARBELLA AVE2013-05-24

09:56Back

210.6

120 j< 2.5

< 8.7 PF< 14

< 5.621

17 j< 3.7

< 5.7< 0.00023

< 0.12< 14

M24737SVH

24737 MARBELLA AVE

2013-05-2409:56

House20

1.5< 28

2.9 J, b< 8.7 PF

< 14< 5.7

< 7.9< 4.4

< 3.7< 5.7

0.00043< 0.12

< 14M

24737SVF24737 M

ARBELLA AVE2013-05-24

10:24Front

211.2

< 28< 2.5

< 8.8 PF< 14

< 5.720

< 4.4< 3.7

< 5.8< 0.00023

< 0.12< 14

N24738SVB

24738 NEPTU

NE AVE

2009-09-2309:00

Back19

1.6< 11

20 J< 8.7

< 3.4< 5.6

< 7.8< 4.3

< 3.7< 5.7

< 0.00023< 3.6

N24738SVF

24738 NEPTU

NE AVE

2009-09-2309:45

Front17

314

3.3 J< 8.8

< 3.515

< 8< 4.4

5.8< 5.8

< 0.00024< 3.6

N24738SVH

24738 NEPTU

NE AVE

2012-02-2310:03

House21

0.6132

1.3 J, b< 7.9

< 12< 5.1

7.5< 4

3.4< 5.2

0.0004< 0.074

< 13N

24738SVF24738 N

EPTUN

E AVE2012-02-23

10:33Front

200.72

662 J, b

19< 13

< 5.4< 7.6

10< 3.6

< 5.50.00024

< 0.078< 14

N24738SVFD

24738 NEPTU

NE AVE

2012-02-2310:33

Front20

0.6821

0.95 J, b14

< 13< 5.3

< 7.49.4

< 3.5< 5.4

0.00025< 0.078

< 14N

24738SVF24738 N

EPTUN

E AVE2013-08-28

15:10Front

192.8

< 300.76 J, b

< 9.5 PF< 15

34< 8.5

< 4.7< 4

< 6.2< 0.00025

< 0.13< 16

N24738SVFD

24738 NEPTU

NE AVE

2013-08-2815:10

Front19

2.8< 30

0.64 J, b< 9.4 PF

< 1534

< 8.5< 4.7

< 4< 6.2

< 0.00025< 0.12

< 16N

24738SVB24738 N

EPTUN

E AVE2013-08-28

15:44Back

183.3

< 290.6 J, b

< 9.1 PF< 14

< 5.9< 8.2

< 4.6< 3.9

< 6< 0.00024

< 0.12< 15

P24738SVH24738 PAN

AMA AVE

2010-09-0713:44

House12

6.442

< 1.4< 8.8

< 3.4< 5.7

< 7.9< 4.4

< 3.7< 5.8

< 0.00023< 0.12

< 3.6P24738SVHD

24738 PANAM

A AVE2010-09-07

13:44House

126.4

21< 1.4

< 8.8< 3.4

< 5.7< 7.9

< 4.4< 3.7

< 5.8< 0.00023

< 0.12< 3.6

P24738SVB24738 PAN

AMA AVE

2010-09-0714:25

Back19

0.2132

< 1.4< 8.6

< 3.47.5

< 7.8< 4.3

< 3.6< 5.7

< 0.00023< 0.11

< 3.6P24738SVF

24738 PANAM

A AVE2010-09-07

15:03Front

190.35

24< 1.4

11< 3.5

< 5.8< 8.1

4.4 J< 3.8

< 5.9< 0.00024

< 0.12< 3.7

P24738SVH24738 PAN

AMA AVE

2012-09-0714:53

House11

7.6120

14 J, b14

< 14< 5.6

< 7.8< 4.3

12< 5.7

0.006< 0.11

< 14P24738SVF

24738 PANAM

A AVE2012-09-07

15:37Front

200.73

680.56 J, b

1117

< 5.3< 7.3

< 4.1< 3.4

< 5.3< 0.00022

< 0.11< 13

P24738SVB24738 PAN

AMA AVE

2012-09-0715:55

Back19

2.438

< 0.6< 9.1

< 14< 5.9

< 8.2< 4.6

< 3.9< 6

< 0.00024< 0.12

< 15P24738SVH

24738 PANAM

A AVE2013-06-11

09:41House

146

< 283.9 J, b

< 8.7< 14

< 5.7< 7.9

< 4.4< 3.7

< 5.7< 0.00023

< 0.12< 14

P24738SVB24738 PAN

AMA AVE

2013-06-1109:46

Back19

236

3.6 J, b< 9

< 14< 5.8

< 8.1< 4.5

< 3.8< 5.9

< 0.00024< 0.12

< 15P24738SVBS

24738 PANAM

A AVE2013-06-11

09:46Back

19.72.04

48< 1.1 U

< 30 U< 30 U

< 3 U< 3 U

< 3 U< 3 U

< 3 U< 0.17 U

< 30 UP24738SVF

24738 PANAM

A AVE2013-06-11

10:19Front

210.54

< 28< 2.6

< 9< 14

< 5.8< 8.1

5 j< 3.8

< 5.9< 0.00024

< 0.12< 15

P24738SVFS24738 PAN

AMA AVE

2013-06-1110:19

Front21.2

0.542< 21 U

< 0.75 U< 21 U

< 21 U< 2.1 U

< 2.1 U< 2.1 U

< 2.1 U< 2.1 U

< 0.17 U< 21 U

N24739SVH

24739 NEPTU

NE AVE

2010-10-1209:45

House19

0.925

< 1.2< 7.6

< 3< 4.9

< 6.8< 3.8

< 3.2< 5

< 0.0002< 0.1

< 3.1N

24739SVF24739 N

EPTUN

E AVE2010-10-12

11:48Front

190.94

17< 1.3

< 8.8< 3.4

7.8< 7.9

< 4.4< 3.7

< 5.8< 0.00023

< 0.12< 3.6

N24739SVG

24739 NEPTU

NE AVE

2011-11-1112:08

Garage

105.9

< 7.20.39 J

< 5.7< 9

< 3.7< 5.2

< 2.9< 2.4

< 3.8< 0.00015

< 0.076< 9.5

N24739SVH

24739 NEPTU

NE AVE

2011-11-1112:45

House20

0.9319

0.31 J< 5.7

< 9< 3.7

< 5.2< 2.9

< 2.4< 3.8

< 0.00015< 0.076

< 9.5N

24739SVF24739 N

EPTUN

E AVE2011-11-11

13:30Front

210.74

< 7.4< 0.28

< 5.8< 9.1

< 3.8< 5.2

< 2.9< 2.5

< 3.8< 0.00016

< 0.078< 9.6

N24739SVFD

24739 NEPTU

NE AVE

2011-11-1113:30

Front21

0.748.2

4.7 J< 5.8

< 9.1< 3.8

< 5.213 j

3.9< 3.8

< 0.00016< 0.078

< 9.6N

24739SVH24739 N

EPTUN

E AVE2012-09-21

10:05House

180.87

< 281.1 J, b

< 9< 14

9.6< 8.1

< 4.5< 3.8

< 5.9< 0.00025

< 0.13< 15

N24739SVG

24739 NEPTU

NE AVE

2012-09-2110:10

Garage

7.97.9

< 281.2 J, b

17< 14

< 5.8< 8.1

< 4.5< 3.8

< 5.9< 0.00024

< 0.12< 15

N24739SVG

S24739 N

EPTUN

E AVE2012-09-21

10:10G

arage8.19

7.96< 19 U

< 0.78 U< 19 U

< 19 U< 1.9 U

< 1.9 U< 1.9 U

< 1.9 U3

< 0.15 U< 19 U

N24739SVG

24739 NEPTU

NE AVE

2013-04-3010:10

Garage

135.3

< 283.8 J, b

< 8.8< 14

< 5.7< 7.9

< 4.4< 3.7

< 5.8< 0.00023

< 0.12< 14

N24739SVG

D24739 N

EPTUN

E AVE2013-04-30

10:10G

arage13

5.4< 28

2.7 J, b< 8.7

< 14< 5.7

< 7.9< 4.4

< 3.7< 5.7

< 0.00023< 0.12

< 14N

24739SVH24739 N

EPTUN

E AVE2013-04-30

10:51House

200.73

302.5 J, b

< 9< 14

< 5.8< 8.1

< 4.5< 3.8

< 5.9< 0.00024

< 0.12< 15

P24739SVH24739 PAN

AMA AVE

2011-02-0713:57

House21

0.046< 11

< 0.34< 8.8

< 3.4< 5.7

< 7.9< 4.4

< 3.7< 5.8

< 0.00023< 0.12

< 3.6P24739SVHS

24739 PANAM

A AVE2011-02-07

13:57House

21.9< 0.16

< 17< 1.4

< 17< 17

< 1.7< 1.7

< 1.7< 1.7

2.4< 0.16

< 17P24739SVB

24739 PANAM

A AVE2011-02-07

14:43Back

172.8

< 0.00025< 0.13

P24739SVF24739 PAN

AMA AVE

2011-02-0714:43

Front21

0.0818

< 0.34< 8.8

< 3.4< 5.7

< 7.9< 4.4

< 3.7< 5.8

< 0.00023< 0.12

< 3.6P24739SVB

24739 PANAM

A AVE2011-02-07

15:15Back

< 120.71 J, b

< 9.5< 3.7

< 6.2< 8.5

< 4.7< 4

< 6.27

P24739SVB24739 PAN

AMA AVE

2012-10-2610:02

Back16

3.2< 27

0.91 J, b< 8.7

< 14< 5.6

< 7.8< 4.3

< 3.7< 5.7

< 0.00023< 0.12

< 14P24739SVBD

24739 PANAM

A AVE2012-10-26

10:02Back

163

< 26< 0.54

< 8.3< 13

< 5.4< 7.5

8.5 j< 3.5

< 5.5< 0.00022

< 0.11< 14

P24739SVH24739 PAN

AMA AVE

2012-10-2610:30

House20

0.42< 26

< 0.54< 8.3

< 13< 5.4

< 7.526

< 3.5< 5.5

< 0.00022< 0.11

< 14P24739SVF

24739 PANAM

A AVE2012-10-26

10:33Front

200.088

< 28< 0.59

< 9< 14

< 5.8< 8.1

< 4.5< 3.8

< 5.9< 0.00024

< 0.12< 15

P24739SVF24739 PAN

AMA AVE

2013-06-1314:50

Front22

0.088< 29

< 2.6< 9.1

< 14< 5.9

< 8.2< 4.5

< 3.8< 6

< 0.00024< 0.12

< 15P24739SVH

24739 PANAM

A AVE2013-06-13

14:59House

210.41

< 30< 2.8

< 9.5< 15

< 6.2< 8.5

< 4.7< 4

< 6.2< 0.00025

< 0.13< 16

P24739SVB24739 PAN

AMA AVE

2013-06-1315:21

Back16

5.6< 29

< 2.7< 9.2

< 14< 6

< 8.3< 4.6

< 3.9< 6

< 0.00024< 0.12

< 15R24739SVH

24739 RAVENN

A AVE2010-10-13

09:06House

172

20< 1.3

< 8.8< 3.5

< 5.7< 8

< 4.4< 3.8

< 5.8< 0.00024

< 0.12< 3.6

R24739SVB24739 RAVEN

NA AVE

2010-10-1309:42

Back21

0.2< 11

< 1.4< 8.9

5.3< 5.8

< 8< 4.5

< 3.8< 5.9

< 0.00024< 0.12

< 3.7

Page 268: Table Proposed Cleanup Levels Groundwater · 10/21/2013  · Table 04 Summery of PrsllMnery Cost ES11motee for Soleening Feasibility Study Former Kest Property Carson, CA GeotFnlenGOneullanle

Table B-2Sub-Slab Soil Vapor Results

Former Kast Property

Carson, California

Residential Properties Sampled Through August 31, 2013

Page 36 of 235

Oxygen

Oxygen/Argon

Carbon Dioxide

AcetoneN

aphthaleneEthanol

2-Butanone (M

ethyl Ethyl Ketone)

ChloroformTetrachloro-

etheneToluene

BenzeneFreon 12

Methane

HeliumCarbon

DisulfideM

OL %

MO

L %M

OL %

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

MO

L %M

OL %

UG

/M3

100.00%100.00%

92.56%52.63%

49.98%18.72%

17.61%16.54%

8.00%7.84%

7.80%6.94%

6.17%5.34%

4.80%Sam

ple IDAddress

Sample D

ateSam

ple Time

Location

AnalyteU

nitsFrequency of D

etection

R24739SVF24739 RAVEN

NA AVE

2010-10-1310:14

Front18

1.225

< 1.3< 8.8

3.46.5

< 7.9< 4.4

< 3.7< 5.8

< 0.00023< 0.12

< 3.6R24739SVFD

24739 RAVENN

A AVE2010-10-13

10:14Front

181.2

352.2 J

< 8.84.7

6.4< 7.9

< 4.4< 3.7

< 5.8< 0.00023

< 0.12< 3.6

R24739SVF24739 RAVEN

NA AVE

2011-03-0309:57

Front20

0.8< 11

5.2 J, b< 9

< 14< 5.8

< 8.1< 4.5

< 3.8< 5.9

< 0.00024< 0.12

< 15R24739SVH

24739 RAVENN

A AVE2011-03-03

10:35House

201.6

< 114.3 J, b

< 8.8< 14

< 5.7< 7.9

< 4.4< 3.7

< 5.8< 0.00023

< 0.12< 14

R24739SVB24739 RAVEN

NA AVE

2011-03-0311:10

Back22

0.1464

5 J, b< 8.8

20< 5.7

< 7.9< 4.4

< 3.7< 5.8

< 0.00023< 0.12

< 14R24739SVB D

24739 RAVENN

A AVE2011-03-03

11:10Back

210.13

242.2 J, b

< 8.86.3 J

< 5.7< 7.9

< 4.4< 3.7

< 5.8< 0.00023

< 0.123.7 J

R24739SVB24739 RAVEN

NA AVE

2013-07-0314:39

Back22

0.49< 28

0.85 J, b< 9

< 14< 5.8

< 8.1< 4.5

< 3.8< 5.9

< 0.00024< 0.12

< 15R24739SVH

24739 RAVENN

A AVE2013-07-03

14:54House

182.6

< 30< 0.84

< 9.4< 15

< 6.1< 8.5

< 4.7< 4

7.3< 0.00025

< 0.12< 16

R24739SVF24739 RAVEN

NA AVE

2013-07-0315:09

Front16

529

< 0.83< 9.2

< 146

< 8.3< 4.6

< 3.9< 6

< 0.00024< 0.12

< 15M

24741SVH24741 M

ARBELLA AVE2010-05-28

09:20House

190.93

620< 4

247.7

< 5.7950

< 4.4< 3.7

< 5.8< 0.00023

< 0.12< 3.6

M24741SVB

24741 MARBELLA AVE

2010-05-2810:01

Back20

0.3826

< 4.2< 9.1

3.8< 5.9

52< 4.5

< 3.8< 6

< 0.00024< 0.12

< 3.8M

24741SVF24741 M

ARBELLA AVE2010-05-28

10:37Front

181.8

36< 4.2

< 9.16

< 5.9< 8.2

< 4.66.9

< 6< 0.00024

< 0.12< 3.8

M24741SVF

24741 MARBELLA AVE

2012-06-1509:59

Front18

3.8< 18

0.35 J, b< 5.7

< 8.9< 3.7

6.6 PE, j< 2.8

< 2.4< 3.7

< 0.00015< 0.076

< 9.4M

24741SVFS24741 M

ARBELLA AVE2012-06-15

09:59Front

17.63.86

< 17 U< 0.7 U

< 17 U< 17 U

2.32.6

< 1.7 U< 1.7 U

2.1< 0.15 U

< 17 UM

24741SVB24741 M

ARBELLA AVE2012-06-15

10:08Back

201.2

< 180.36 J, b

< 5.8< 9.1

3865 PE, j

< 2.9< 2.5

< 3.8< 0.00016

< 0.078< 9.6

M24741SVBS

24741 MARBELLA AVE

2012-06-1510:08

Back20.5

1.24< 17 U

< 0.72 U< 17 U

< 17 U33

42< 1.7 U

< 1.7 U2.1

< 0.16 U< 17 U

M24741SVHA

24741 MARBELLA AVE

2012-06-2212:08

House19

0.96< 18

< 0.3< 5.7 PF

< 9< 3.7

760< 2.9

< 2.4< 3.8

< 0.000150.095

< 9.5R24743SVH

24743 RAVENN

A AVE2010-10-25

13:41House

154.5

< 11< 1.4

< 9< 3.5

< 5.8< 8.1

< 4.5< 3.8

< 5.9< 0.00024

< 0.12< 3.7

R24743SVG24743 RAVEN

NA AVE

2010-10-2514:14

Garage

173.8

11< 1.3

< 8.5< 3.3

< 5.5< 7.7

< 4.2< 3.6

< 5.6< 0.00023

< 0.11< 3.5

R24743SVB24743 RAVEN

NA AVE

2010-10-2514:51

Back20

0.416

< 1.313

< 3.413

< 7.8< 4.3

< 3.7< 5.7

< 0.00023< 0.12

< 3.6R24743SVB

24743 RAVENN

A AVE2013-02-14

15:08Back

220.23

< 282.2 J, b

< 8.8< 14

< 5.7< 7.9

< 4.4< 3.7

< 5.8< 0.00045

< 0.23< 14

R24743SVH24743 RAVEN

NA AVE

2013-02-1415:09

House20

2.1< 29

2.5 J, b< 9.1

< 14< 5.9

< 8.2< 4.6

< 3.9< 6

< 0.00024< 0.12

< 15R24743SVG

24743 RAVENN

A AVE2013-02-14

15:43G

arage21

0.73< 28

1.2 J, b< 8.8

< 14< 5.7

< 7.9< 4.4

< 3.7< 5.8

< 0.00023< 0.12

< 14R24743SVB

24743 RAVENN

A AVE2013-07-10

14:40Back

210.92

292.2 J, b

< 8.9< 14

< 5.8< 8

< 4.4< 3.8

< 5.8< 0.00024

< 0.12< 15

R24743SVG24743 RAVEN

NA AVE

2013-07-1014:50

Garage

202.1

< 295.1 J, b

< 9.1< 14

< 5.9< 8.2

< 4.6< 3.9

< 6< 0.00024

< 0.12< 15

R24743SVH24743 RAVEN

NA AVE

2013-07-1015:32

House19

2.436

1.4 J, b< 9.4

< 15< 6.1

< 8.4< 4.7

< 4< 6.2

< 0.00025< 0.12

< 16M

24744SVF24744 M

ARBELLA AVE2010-04-23

15:07Front

210.21

2340 b

< 8.64.7

< 5.659

< 4.3< 3.6

< 5.7< 0.00023

0.274.5

M24744SVB

24744 MARBELLA AVE

2010-04-2316:04

Back20

0.1820

< 2.411

3.9< 5.9

36< 4.6

< 3.9< 6

< 0.00024< 0.12

< 3.8M

24744SVH24744 M

ARBELLA AVE2010-04-23

17:13House

201.1

755.1 J, b

948.8

< 5.677

< 4.35.7

< 5.7< 0.00023

< 0.11< 3.6

M24744SVH

24744 MARBELLA AVE

2010-08-0209:39

House19

1.432

< 6.215

5< 5.7

74< 4.4

< 3.7< 5.8

0.00029< 0.12

< 3.6M

24744SVG24744 M

ARBELLA AVE2010-08-17

08:50G

arage14

5.143

< 6.210

< 3.4< 5.7

36< 4.4

17< 5.8

< 0.00023< 0.12

< 3.6M

24744 SVH24744 M

ARBELLA AVE2011-02-09

09:26House

201.2

< 112.7 J, b

< 9< 3.5

< 5.882

< 4.5< 3.8

< 5.90.00028

< 0.12< 3.7

M24744 SVG

24744 MARBELLA AVE

2011-02-0910:02

Garage

174

321.4 J, b

< 8.53.5

< 5.518

< 4.2< 3.6

< 5.6< 0.00023

< 0.11< 3.5

M24744 SVB

24744 MARBELLA AVE

2011-02-0910:52

Back21

0.3< 11

1.2 J, b< 8.6

< 3.4< 5.6

39< 4.3

< 3.6< 5.6

< 0.00023< 0.11

< 3.6M

24744 SVB D24744 M

ARBELLA AVE2011-02-09

10:52Back

210.3

162 J, b

< 8.6< 3.4

< 5.636

< 4.3< 3.6

< 5.6< 0.00023

< 0.11< 3.6

M24744 SVH

24744 MARBELLA AVE

2012-03-1515:26

House21

1.2< 45

0.88 J, b48

< 22< 9.2

58< 7.1

< 6< 9.3

< 0.00021< 0.1

< 23M

24744 SVG24744 M

ARBELLA AVE2012-03-15

15:30G

arage16

4.920

0.58 J, b< 6

< 9.3< 3.8

19< 3

< 2.5< 3.9

< 0.00016< 0.079

< 9.8M

24744 SVB24744 M

ARBELLA AVE2012-03-15

16:11Back

200.9

< 20< 0.33

< 6.3< 9.9

< 4.146

< 3.2< 2.7

< 4.2< 0.00017

< 0.084< 10

M24744 SVBD

24744 MARBELLA AVE

2012-03-1516:11

Back20

0.8822

0.47 J, b< 6.3

< 9.9< 4.1

41< 3.2

3.8< 4.2

< 0.00017< 0.084

< 10R24748SVH

24748 RAVENN

A AVE2010-07-15

09:41House

180.59

170< 2.4 Q

2126

70< 8.2

< 4.522

< 6< 0.00024

< 0.12< 3.8

R24748SVF24748 RAVEN

NA AVE

2010-07-1510:32

Front20

< 0.02456

< 2.3 Q< 8.8

8.5210

< 8< 4.4

4.6< 5.8

< 0.00024< 0.12

< 3.6R24748SVB

24748 RAVENN

A AVE2010-07-15

11:13Back

182.5

35< 2.4 Q

10< 3.6

58< 8.2

< 4.612

< 6< 0.00024

< 0.12< 3.8

R24748SVF24748 RAVEN

NA AVE

2012-09-1410:13

Front20

1.2< 29

2.3 J, b< 9.3

< 14< 6

< 8.4< 4.6

< 3.9< 6.1

< 0.00025< 0.12

< 15R24748SVFS

24748 RAVENN

A AVE2012-09-14

10:13Front

20.11.27

< 21 U< 0.88 U

< 21 U< 21 U

< 2.1 U< 2.1 U

< 2.1 U< 2.1 U

< 2.1 U< 0.17 U

< 21 UR24748SVB

24748 RAVENN

A AVE2012-09-14

10:33Back

173.3

< 332.3 J, b

14< 16

< 6.7< 9.4

< 5.2< 4.4

< 6.8< 0.00028

< 0.14< 17

R24748SVH24748 RAVEN

NA AVE

2012-09-1411:03

House17

2.4< 29

3.6 J, b< 9.1

< 14< 5.9

< 8.2< 4.6

< 3.9< 6

< 0.00024< 0.12

< 15R24748SVH

24748 RAVENN

A AVE2013-04-16

09:50House

211

< 270.93 J, b

9.5< 14

< 5.6< 7.8

< 4.3< 3.6

< 5.7< 0.00023

< 0.11< 14

R24748SVF24748 RAVEN

NA AVE

2013-04-1610:02

Front21

0.61< 29

0.83 J, b< 9.2

< 14< 6

< 8.3< 4.6

< 3.9< 6

< 0.00024< 0.12

< 15R24748SVF D

24748 RAVENN

A AVE2013-04-16

10:02Front

210.6

820.88 J, b

< 932

< 5.8< 8.1

< 4.5< 3.8

< 5.9< 0.00024

< 0.12< 15

R24748SVB24748 RAVEN

NA AVE

2013-04-1610:22

Back20

1.8< 25

0.84 J, b8.2

< 12< 5.2

< 7.2< 4

< 3.4< 5.2

0.00034< 0.11

< 13R24749SVH

24749 RAVENN

A AVE2010-09-10

09:09House

612

756.6 J, b

2311

< 5.6< 7.8

9.3< 3.6

< 5.7< 0.00023

< 0.11< 3.6

R24749SVB24749 RAVEN

NA AVE

2010-09-1009:45

Back11

9.331

2 J, b14

< 3.6< 5.9

< 8.2< 4.6

< 3.9< 6

< 0.00024< 0.12

< 3.8

Page 269: Table Proposed Cleanup Levels Groundwater · 10/21/2013  · Table 04 Summery of PrsllMnery Cost ES11motee for Soleening Feasibility Study Former Kest Property Carson, CA GeotFnlenGOneullanle

Table B-2Sub-Slab Soil Vapor Results

Former Kast Property

Carson, California

Residential Properties Sampled Through August 31, 2013

Page 37 of 235

Oxygen

Oxygen/Argon

Carbon Dioxide

AcetoneN

aphthaleneEthanol

2-Butanone (M

ethyl Ethyl Ketone)

ChloroformTetrachloro-

etheneToluene

BenzeneFreon 12

Methane

HeliumCarbon

DisulfideM

OL %

MO

L %M

OL %

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

MO

L %M

OL %

UG

/M3

100.00%100.00%

92.56%52.63%

49.98%18.72%

17.61%16.54%

8.00%7.84%

7.80%6.94%

6.17%5.34%

4.80%Sam

ple IDAddress

Sample D

ateSam

ple Time

Location

AnalyteU

nitsFrequency of D

etection

R24749SVBD24749 RAVEN

NA AVE

2010-09-1009:45

Back11

9.237

1.8 J, b< 9

4< 5.8

< 8.1< 4.5

< 3.8< 5.9

< 0.00024< 0.12

< 3.7R24749SVG

24749 RAVENN

A AVE2010-09-10

10:25G

arage2

14< 280

< 64< 220

< 88< 140

< 200< 110

1000< 150

0.12< 0.12

< 93R24749SVH

24749 RAVENN

A AVE2010-12-17

12:14House

7.211

172.5 J, b

< 8.4< 3.3

< 5.5< 7.6

< 4.28.2

< 5.5< 0.00022

< 0.11< 3.5

R24749SVHS24749 RAVEN

NA AVE

2010-12-1712:14

House8.04

11.8< 16

< 1.3< 16

< 16< 1.6

< 1.6< 1.6

< 1.62.3

< 0.15< 16

R24749SVG24749 RAVEN

NA AVE

2010-12-1712:37

Garage

2.412

< 56< 6.7

< 44< 17

< 29< 40

26420

< 290.063

< 0.12< 18

R24749SVB24749 RAVEN

NA AVE

2010-12-1713:05

Back12

7.8< 11

2.4 J, b< 8.8

< 3.4< 5.7

< 7.9< 4.4

< 3.7< 5.8

< 0.00023< 0.12

< 3.6R24749SVB

24749 RAVENN

A AVE2013-08-06

10:00Back

136.7

300.94 J, b

< 9< 14

< 5.8< 8.1

< 4.5< 3.8

< 5.9< 0.00024

< 0.12< 15

R24749SVBD24749 RAVEN

NA AVE

2013-08-0610:00

Back14

7.1< 28

1 J, b< 9

< 14< 5.8

< 8.1< 4.5

< 3.8< 5.9

< 0.00024< 0.12

< 15R24749SVH

24749 RAVENN

A AVE2013-08-06

10:02House

7.412

< 281.2 J, b

< 9< 14

58< 8.1

< 4.5< 3.8

< 5.9< 0.00024

< 0.12< 15

R24749SVG24749 RAVEN

NA AVE

2013-08-0610:29

Garage

2.417

1001.1 J, b

< 8.4< 13

< 5.5< 7.6

< 4.231

< 5.50.075

< 0.11< 14

R24752SVF24752 RAVEN

NA AVE

2010-04-0911:14

Front13

612

< 2.3< 8.8

< 3.4< 5.7

< 7.9< 4.4

< 3.7< 5.8

< 0.00023< 0.12

< 3.6R24752SVB

24752 RAVENN

A AVE2010-04-09

12:34Back

200.38

22< 2.4

16 J< 3.5

7< 8.1

< 4.5< 3.8

< 5.9< 0.00024

< 0.12< 3.7

R24752SVH224752 RAVEN

NA AVE

2010-05-2113:38

House19

1.756

< 4.1< 15

19< 10

< 14< 7.7

< 6.5< 10

< 0.00023< 0.12

< 6.4R24752SVH2

24752 RAVENN

A AVE2012-07-20

15:01House

173

35< 3 PF

< 6< 9.3

< 3.8< 5.4

< 3< 2.5

< 3.9< 0.00016

< 0.079< 9.8

R24752SVF24752 RAVEN

NA AVE

2012-07-2015:08

Front10

9.724

< 2.9 PF< 5.8

< 9.1< 3.8

< 5.2< 2.9

< 2.5< 3.8

< 0.00016< 0.078

< 9.6R24752SVB

24752 RAVENN

A AVE2012-07-20

15:45Back

192

34< 3 PF

< 6< 9.3

7.7< 5.4

< 3< 2.5

< 3.9< 0.00016

< 0.079< 9.8

N24803SVG

24803 NEPTU

NE AVE

2010-09-0714:58

Garage

182

21< 1.4

12< 3.4

< 5.7< 7.9

< 4.4< 3.7

< 5.8< 0.00023

< 0.12< 3.6

N24803SVB

24803 NEPTU

NE AVE

2010-09-0715:46

Back20

< 0.02512

< 1.5< 9.3

< 3.6< 6

< 8.4< 4.6

< 3.9< 6.1

< 0.00025< 0.12

< 3.8N

24803SVBD24803 N

EPTUN

E AVE2010-09-07

15:46Back

20< 0.024

13< 1.5

105.4

< 5.9< 8.2

< 4.6< 3.9

< 6< 0.00024

< 0.12< 3.8

N24803SVHA

24803 NEPTU

NE AVE

2011-03-3114:15

House20

0.27< 12

0.43 J, b< 9.9

< 16< 6.4

< 9< 5

< 4.2< 6.5

< 0.000260.35

< 16N

24803SVG24803 N

EPTUN

E AVE2011-03-31

14:59G

arage18

1.5< 11

< 25 UJ

< 9.1< 14

< 5.9< 8.2

< 4.6< 3.9

< 6< 0.00024

< 0.12< 15

N24803SVB

24803 NEPTU

NE AVE

2011-03-3115:33

Back20

0.09718

< 27 UJ

< 9.7< 15

< 6.3< 8.8

< 4.9< 4.1

< 6.4< 0.00026

< 0.13< 16

N24803SVBD

24803 NEPTU

NE AVE

2011-03-3115:33

Back20

0.09220

1 J, b< 9.7

< 15< 6.3

< 8.86.2

< 4.1< 6.4

< 0.00026< 0.13

< 16N

24803SVHB24803 N

EPTUN

E AVE2013-02-01

14:38House

210.52

661.9 J, b

< 9.3< 14

< 6< 8.4

< 4.6< 3.9

< 6.1< 0.00025

< 0.12< 15

N24803SVB

24803 NEPTU

NE AVE

2013-02-0114:47

Back22

0.093< 31

2.2 J, b< 9.7

< 15< 6.3

< 8.8< 4.9

< 4.1< 6.4

< 0.00026< 0.13

< 16N

24803SVG24803 N

EPTUN

E AVE2013-02-01

15:18G

arage20

1.6< 26

1.3 J, b< 8.3

< 13< 5.4

< 7.5< 4.1

< 3.5< 5.4

< 0.00022< 0.11

< 14N

24803SVB24803 N

EPTUN

E AVE2013-07-12

14:58Back

210.19

2701 J, b

27< 12

< 5< 7

68< 3.3

< 5.1< 0.00021

< 0.1< 13

N24803SVG

24803 NEPTU

NE AVE

2013-07-1215:20

Garage

182.6

2103.5 J, b

< 9.2< 14

< 5.9< 8.2

< 4.6< 3.9

< 6< 0.00024

< 0.12< 15

N24803SVHB

24803 NEPTU

NE AVE

2013-07-1511:15

House20

0.7163

< 0.82< 9.2

< 14< 5.9

< 8.2< 4.6

< 3.9< 6

< 0.000240.16

< 15P24803SVH

24803 PANAM

A AVE2010-08-09

14:02House

200.3

24< 6.3

< 9< 3.5

< 5.8< 8.1

< 4.531

< 5.9< 0.00024

< 0.12< 3.7

P24803SVB24803 PAN

AMA AVE

2010-08-0915:14

Back21

0.07660

< 6.4< 9.1

6.513

< 8.2< 4.6

< 3.9< 6

< 0.00024< 0.12

< 3.8P24803SVF

24803 PANAM

A AVE2010-08-09

15:45Front

200.069

33< 6.2

< 8.86.6

< 5.7< 7.9

< 4.4< 3.7

< 5.8< 0.00023

0.25< 3.6

P24803SVH24803 PAN

AMA AVE

2011-02-1814:16

House21

0.59< 11

0.97 J, b< 8.8

< 3.4< 5.7

< 7.9< 4.4

< 3.7< 5.8

< 0.00023< 0.12

< 3.6P24803SVB

24803 PANAM

A AVE2011-02-18

14:28Back

210.16

170.8 J, b

< 8.8< 3.4

23< 7.9

< 4.4< 3.7

< 5.8< 0.00023

< 0.12< 3.6

P24803SVG24803 PAN

AMA AVE

2011-02-1815:05

Garage

200.41

161.3 J, b

< 9.3< 3.6

< 6< 8.3

< 4.6< 3.9

< 6.1< 0.00025

< 0.12< 3.8

P24803SVG24803 PAN

AMA AVE

2013-01-3114:39

Garage

201.2

< 281.8 J, b

< 8.8< 14

< 5.7< 7.9

< 4.4< 3.7

< 5.8< 0.00023

< 0.12< 14

P24803SVH24803 PAN

AMA AVE

2013-01-3114:40

House20

0.66< 32

1.6 J, b< 10

< 16< 6.6

< 9.1< 5.1

< 4.3< 6.6

< 0.00027< 0.13

< 17P24803SVB

24803 PANAM

A AVE2013-01-31

15:12Back

210.2

< 283 J, b

< 8.8< 14

< 5.7< 7.9

< 4.4< 3.7

< 5.8< 0.00023

< 0.12< 14

P24803SVH24803 PAN

AMA AVE

2013-08-0814:45

House20

0.8< 28

< 0.81< 9

< 14< 5.8

< 8.1< 4.5

< 3.8< 5.9

< 0.00024< 0.12

< 15P24803SVB

24803 PANAM

A AVE2013-08-08

14:48Back

200.38

< 31< 0.87

< 9.8< 15

< 6.3< 8.8

< 4.9< 4.1

< 6.4< 0.00026

< 0.13< 16

P24803SVG24803 PAN

AMA AVE

2013-08-0815:15

Garage

192.4

55< 0.8

< 8.9< 14

< 5.8< 8

< 4.5< 3.8

< 5.9< 0.00024

< 0.12< 15

N24809SVB

24809 NEPTU

NE AVE

2010-10-1508:57

Back21

< 0.02262

< 1.3< 8.4

4.5< 5.5

< 7.6< 4.2

< 3.6< 5.5

< 0.00022< 0.11

16N

24809 SVFS24809 N

EPTUN

E AVE2010-10-15

09:35Front

20.50.786

17< 1.2

< 16< 16

< 1.6< 1.6

< 1.6< 1.6

2.1< 0.14

< 16N

24809SVF24809 N

EPTUN

E AVE2010-10-15

09:35Front

200.74

34< 1.2

12< 3.2

< 5.4< 7.5

< 4.1< 3.5

< 5.4< 0.00022

< 0.11< 3.4

N24809SVH

24809 NEPTU

NE AVE

2010-10-1510:42

House20

1.196

< 1.318

22< 5.7

< 7.9< 4.4

< 3.7< 5.8

< 0.00023< 0.12

< 3.6N

24809SVB24809 N

EPTUN

E AVE2012-07-20

10:05Back

200.25

< 19< 3 PF

< 6< 9.3

< 3.8< 5.4

< 3< 2.5

< 3.9< 0.00016

< 0.079< 9.8

N24809SVH

24809 NEPTU

NE AVE

2012-07-2010:15

House19

1.389

< 3 PF< 6

< 9.3< 3.8

< 5.4< 3

< 2.5< 3.9

< 0.00016< 0.079

< 9.8N

24809SVF24809 N

EPTUN

E AVE2012-07-20

10:52Front

183.1

< 19< 3 PF

< 6.1< 9.5

< 3.9< 5.5

< 3< 2.6

< 4< 0.00016

< 0.08< 10

P24809SVF24809 PAN

AMA AVE

2009-10-1513:49

Front21

0.08980

< 2.49.2

7.3< 5.8

< 8.1< 4.5

6.4< 5.9

< 0.00024< 3.7

P24809SVH24809 PAN

AMA AVE

2009-10-1515:07

House21

0.6319

2.6 J< 9

5< 5.8

< 8.1< 4.5

< 3.88.2

< 0.00024< 3.7

P24809SVHS24809 PAN

AMA AVE

2009-10-1515:07

House21.1

0.62318 J

2.514 J

4.1< 2.1

7< 2.1

0.6 J4

< 0.120.69 J

P24809SVB24809 PAN

AMA AVE

2009-10-1516:08

Back21

0.14130

< 2.5< 9.1

< 3.6< 5.9

< 8.2< 4.5

< 3.8< 6

< 0.00024< 3.8

Page 270: Table Proposed Cleanup Levels Groundwater · 10/21/2013  · Table 04 Summery of PrsllMnery Cost ES11motee for Soleening Feasibility Study Former Kest Property Carson, CA GeotFnlenGOneullanle

Table B-2Sub-Slab Soil Vapor Results

Former Kast Property

Carson, California

Residential Properties Sampled Through August 31, 2013

Page 38 of 235

Oxygen

Oxygen/Argon

Carbon Dioxide

AcetoneN

aphthaleneEthanol

2-Butanone (M

ethyl Ethyl Ketone)

ChloroformTetrachloro-

etheneToluene

BenzeneFreon 12

Methane

HeliumCarbon

DisulfideM

OL %

MO

L %M

OL %

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

MO

L %M

OL %

UG

/M3

100.00%100.00%

92.56%52.63%

49.98%18.72%

17.61%16.54%

8.00%7.84%

7.80%6.94%

6.17%5.34%

4.80%Sam

ple IDAddress

Sample D

ateSam

ple Time

Location

AnalyteU

nitsFrequency of D

etection

P24809SVBD24809 PAN

AMA AVE

2009-10-1516:08

Back20

0.14170

< 2.4< 9

< 3.5< 5.8

< 8.1< 4.5

< 3.8< 5.9

< 0.00024< 3.7

P24809SVB24809 PAN

AMA AVE

2010-07-2810:19

Back20

0.6626

< 6.213

< 3.4< 5.7

< 7.9< 4.4

7.8< 5.8

< 0.00023< 0.12

< 3.6P24809SVF

24809 PANAM

A AVE2010-07-28

11:02Front

200.33

46< 6.6

11< 3.6

< 6< 8.4

< 4.717

< 6.1< 0.00025

< 0.12< 3.9

P24809SVH24809 PAN

AMA AVE

2011-02-0809:21

House20

0.3214

< 0.35< 9.1

< 3.6< 5.9

< 8.2< 4.6

< 3.9< 6

< 0.000240.21

12P24809SVHA

24809 PANAM

A AVE2012-03-23

10:28House

210.063

201.4 J, b

< 6< 9.3

6.3< 5.4

< 3< 2.5

4.4< 0.00016

0.14< 9.8

P24809SVF24809 PAN

AMA AVE

2012-03-2311:04

Front21

0.22< 19

2.9 J, b< 6

< 9.3< 3.8

< 5.4< 3

< 2.5< 3.9

< 0.00016< 0.079

< 9.8P24809SVB

24809 PANAM

A AVE2012-03-23

11:12Back

210.4

< 180.85 J, b

< 5.8< 9.1

< 3.8< 5.2

< 2.9< 2.5

< 3.8< 0.00016

0.14< 9.6

P24809SVBS24809 PAN

AMA AVE

2012-03-2311:12

Back21

0.407< 17 U

< 0.98 U< 17 U

< 17 U2.5

< 1.7 U< 1.7 U

< 1.7 U1.9

< 0.15 U< 17 U

P24812SVH24812 PAN

AMA AVE

2010-05-0508:54

House20

0.9157

< 6.4< 9.1

8< 5.9

< 8.2< 4.6

< 3.9< 6

< 0.00024< 0.12

< 3.8P24812SVB

24812 PANAM

A AVE2010-05-05

10:21Back

200.34

26< 6.3

< 8.94.2

7.6< 8

< 4.5< 3.8

< 5.9< 0.00024

< 0.12< 3.7

P24812SVBD24812 PAN

AMA AVE

2010-05-0510:21

Back20

0.3446

< 6.313

< 3.58.3

< 8.1< 4.5

< 3.8< 5.9

< 0.00024< 0.12

< 3.7P24812SVF

24812 PANAM

A AVE2010-05-05

11:08Front

21< 0.023

42< 6.2

< 8.813

< 5.7< 7.9

< 4.4< 3.7

< 5.8< 0.00023

< 0.12< 3.6

P24812SVH24812 PAN

AMA AVE

2012-12-0615:07

House20

1< 28

1.9 J, b12

< 14< 5.8

< 8.130

< 3.8< 5.9

< 0.00024< 0.12

< 15P24812SVB

24812 PANAM

A AVE2012-12-06

15:08Back

192

321.1 J, b

< 9.1< 14

< 5.9< 8.2

< 4.6< 3.9

< 6< 0.00024

< 0.12< 15

P24812SVF24812 PAN

AMA AVE

2012-12-0615:39

Front21

0.3761

1.1 J, b< 9.5

< 15< 6.2

< 8.5< 4.7

< 4< 6.2

< 0.00025< 0.13

< 16P24812SVB

24812 PANAM

A AVE2013-05-01

14:58Back

211.2

< 281 J, b

< 8.7< 14

< 5.7< 7.9

< 4.4< 3.7

< 5.7< 0.00023

< 0.12< 14

P24812SVH24812 PAN

AMA AVE

2013-05-0115:14

House21

0.8232

0.83 J, b< 8.8

< 14< 5.7

< 7.9< 4.4

< 3.7< 5.8

< 0.00023< 0.12

< 14P24812SVF

24812 PANAM

A AVE2013-05-01

15:34Front

210.24

310.91 J, b

< 9.2< 14

< 6< 8.3

< 4.6< 3.9

< 6< 0.00024

< 0.12< 15

P24813SVH24813 PAN

AMA AVE

2010-10-2609:15

House20

1.126

< 1.3< 8.6

< 3.4< 5.6

< 7.8< 4.3

< 3.6< 5.7

< 0.00023< 0.11

4P24813SVB

24813 PANAM

A AVE2010-10-26

10:54Back

210.16

< 11< 1.4

< 9< 3.5

< 5.8< 8.1

< 4.5< 3.8

< 5.9< 0.00024

< 0.12< 3.7

P24813SVFA24813 PAN

AMA AVE

2010-11-2310:00

Front20

0.2719

4.6 J, b< 8.8

< 3.4200

< 7.9< 4.4

< 3.7< 5.8

< 0.00023< 0.12

< 3.6P24813SVFAS

24813 PANAM

A AVE2010-11-23

10:00Front

200.3

183.8

< 17< 17

2401.9

< 1.7< 1.7

3< 0.15

< 17P24813SVH

24813 PANAM

A AVE2012-08-23

10:00House

182.4

310.76 J, b

13< 14

170< 8.4

< 4.6< 3.9

< 6.10.0049

< 0.12< 15

P24813SVFA24813 PAN

AMA AVE

2012-08-2310:06

Front16

3.433

1 J, b< 9.1

< 14140

< 8.2< 4.6

< 3.9< 6

0.00028< 0.12

< 15P24813SVFAD

24813 PANAM

A AVE2012-08-23

10:06Front

163.4

< 291.3 J, b

< 9.1< 14

140< 8.2

< 4.6< 3.9

< 6< 0.00024

< 0.12< 15

P24813SVB24813 PAN

AMA AVE

2012-08-2310:28

Back21

0.17< 28

0.73 J, b< 8.8

< 1418

< 7.9< 4.4

< 3.7< 5.8

0.0014< 0.12

< 14P24813SVB

24813 PANAM

A AVE2013-06-04

10:00Back

191.6

80 j< 2.5

< 8.7< 14

1000< 7.8

< 4.4< 3.7

< 5.7< 0.0003

< 0.15< 14

P24813SVBS24813 PAN

AMA AVE

2013-06-0410:00

Back19.5

1.57< 20 U

< 0.72 U< 20 U

< 20 U760 D

< 2 U< 2 U

< 2 U< 2 U

< 0.16 U< 20 U

P24813SVH24813 PAN

AMA AVE

2013-06-0410:08

House14

4.538

< 2.48.8

< 1336

< 7.4< 4.1

< 3.5< 5.4

0.0021< 0.11

< 14P24813SVFA

24813 PANAM

A AVE2013-06-04

10:32Front

182.1

33< 2.5

< 8.6< 13

560< 7.7

< 4.3< 3.6

< 5.6< 0.00023

< 0.11< 14

P24813SVFAS24813 PAN

AMA AVE

2013-06-0410:32

Front17.9

2.13< 19 U

< 0.7 U< 19 U

< 19 U390

3.3< 1.9 U

< 1.9 U< 1.9 U

< 0.16 U< 19 U

N24815SVB

24815 NEPTU

NE AVE

2009-09-1714:43

Back8.4

0.95110

< 1.7< 5.2

4.6< 3.4

< 4.716

2.9< 3.4

< 0.00014< 2.2

N24815SVF

24815 NEPTU

NE AVE

2009-09-1715:57

Front14

5.8< 12

< 3.1< 9.3

< 3.6< 6

< 8.3< 4.6

< 3.9< 6.1

< 0.00025< 3.8

N24815SVH

24815 NEPTU

NE AVE

2010-08-1310:09

House15

4.723

< 6< 8.6

< 3.4< 5.6

< 7.8< 4.3

< 3.6< 5.7

< 0.00023< 0.11

3.8N

24815SVF24815 N

EPTUN

E AVE2010-08-13

10:54Front

145.2

28< 6.2

< 8.8< 3.4

< 5.7< 7.9

< 4.46.2

< 5.8< 0.00023

< 0.12< 3.6

N24815SVB

24815 NEPTU

NE AVE

2010-08-1311:59

Back13

7.830

< 6.2< 8.8

3.510

< 7.9< 4.4

5.3< 5.8

< 0.00023< 0.12

< 3.6N

24815SVH24815 N

EPTUN

E AVE2012-03-29

09:58House

182.7

< 190.97 J, b

< 5.9< 9.2

< 3.8< 5.3

< 3< 2.5

< 3.9< 0.00016

< 0.078< 9.8

N24815SVHS

24815 NEPTU

NE AVE

2012-03-2909:58

House18.6

2.94< 17 U

< 1 U< 17 U

< 17 U< 1.7 U

< 1.7 U< 1.7 U

< 1.7 U2.2

< 0.16 U< 17 U

N24815SVB

24815 NEPTU

NE AVE

2012-03-2910:25

Back19

2.6< 18

< 0.3< 5.7

< 9< 3.7

< 5.2< 2.9

< 2.4< 3.8

< 0.00015< 0.076

< 9.5N

24815SVF24815 N

EPTUN

E AVE2012-03-29

10:37Front

183.8

< 190.48 J, b

< 6< 9.3

< 3.8< 5.4

< 3< 2.5

< 3.9< 0.00016

< 0.079< 9.8

P24818SVH24818 PAN

AMA AVE

2010-11-1210:21

House18

2.131

0.5 J, b< 9.1

< 3.6< 5.9

< 8.2< 4.6

< 3.9< 6

< 0.00024< 0.12

< 3.8P24818SVHS

24818 PANAM

A AVE2010-11-12

10:21House

19.32.15

< 17< 1.3

< 17< 17

2.8< 1.7

4< 1.7

2.2< 0.15

< 17P24818SVF

24818 PANAM

A AVE2010-11-12

11:06Front

21< 0.024

240.82 J, b

< 9.1< 3.6

< 5.9< 8.2

< 4.6< 3.9

< 6< 0.00024

< 0.12< 3.8

P24818SVFD24818 PAN

AMA AVE

2010-11-1211:06

Front21

< 0.02417

1 J, b< 9

< 3.5< 5.8

< 8.1< 4.5

< 3.8< 5.9

< 0.00024< 0.12

< 3.7P24818SVF

24818 PANAM

A AVE2012-06-08

10:25Front

220.37

212.9 J, b

< 6.2< 9.7

4.3< 5.6

7.3 j< 2.6

< 4< 0.00016

0.14< 10

P24818SVFS24818 PAN

AMA AVE

2012-06-0810:25

Front21.1

0.374< 17 U

< 0.73 U< 17 U

< 17 U3.7

< 1.7 U< 1.7 U

< 1.7 U2.1

< 0.16 U< 17 U

P24818SVH24818 PAN

AMA AVE

2012-06-0810:30

House12

5.5< 19

1.5 J, b< 6.1

< 9.530

< 5.5< 3

< 2.6< 4

0.16< 0.08

< 10P24818SVBA

24818 PANAM

A AVE2012-06-08

11:02Back

211.6

220.62 J, b

< 6< 9.3

< 3.8< 5.4

< 3< 2.5

< 3.9< 0.00016

< 0.079< 9.8

P24818SVBAS24818 PAN

AMA AVE

2012-06-0811:02

Back20.3

1.5825

< 0.73 U< 17 U

< 17 U3

< 1.7 U< 1.7 U

< 1.7 U1.9

< 0.16 U< 17 U

P24818SVBA24818 PAN

AMA AVE

2013-03-2915:42

Back20

1.3< 27

1.9 J, b< 8.6

< 1321

< 7.7< 4.3

< 3.6< 5.6

< 0.00023< 0.11

< 14P24818SVFA

24818 PANAM

A AVE2013-04-02

15:37Front

230.17

291.7 J, b

< 8.6< 13

< 5.6< 7.7

< 4.3< 3.6

< 5.6< 0.00023

< 0.11< 14

P24818SVHA24818 PAN

AMA AVE

2013-04-0215:40

House21

1.5< 28

4.1 J, b< 9

< 14< 5.8

< 8.1< 4.5

< 3.8< 5.9

< 0.00024< 0.12

< 15

Page 271: Table Proposed Cleanup Levels Groundwater · 10/21/2013  · Table 04 Summery of PrsllMnery Cost ES11motee for Soleening Feasibility Study Former Kest Property Carson, CA GeotFnlenGOneullanle

Table B-2Sub-Slab Soil Vapor Results

Former Kast Property

Carson, California

Residential Properties Sampled Through August 31, 2013

Page 39 of 235

Oxygen

Oxygen/Argon

Carbon Dioxide

AcetoneN

aphthaleneEthanol

2-Butanone (M

ethyl Ethyl Ketone)

ChloroformTetrachloro-

etheneToluene

BenzeneFreon 12

Methane

HeliumCarbon

DisulfideM

OL %

MO

L %M

OL %

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

MO

L %M

OL %

UG

/M3

100.00%100.00%

92.56%52.63%

49.98%18.72%

17.61%16.54%

8.00%7.84%

7.80%6.94%

6.17%5.34%

4.80%Sam

ple IDAddress

Sample D

ateSam

ple Time

Location

AnalyteU

nitsFrequency of D

etection

P24819SVH24819 PAN

AMA AVE

2010-06-1009:16

House21

0.22120

3.4 J37

9.4< 5.7

< 7.9< 4.4

4.9< 5.8

< 0.00023< 0.12

< 3.6P24819SVB

24819 PANAM

A AVE2010-06-10

11:10Back

210.14

46< 2.2

1016

< 5.5< 7.6

< 4.2< 3.6

< 5.5< 0.00022

< 0.11< 3.5

P24819SVF24819 PAN

AMA AVE

2010-06-1011:17

Front20

< 0.02377

12 J< 8.5

15< 5.5

< 7.7< 4.2

< 3.6< 5.6

< 0.00023< 0.11

< 3.5P24819SVF

24819 PANAM

A AVE2011-04-21

11:16Front

220.15

< 110.78 J, b

< 8.8< 14

< 5.7< 7.9

< 4.4< 3.7

< 5.8< 0.00023

< 0.12< 14

P24819SVFS24819 PAN

AMA AVE

2011-04-2111:16

Front21.7

< 0.19< 20

< 1.2< 20

< 20< 2

< 2< 2

< 22.3

< 0.19< 20

P24819SVH24819 PAN

AMA AVE

2011-04-2112:22

House21

0.33< 11

0.7 J, b< 8.8

< 14< 5.7

< 7.9< 4.4

< 3.7< 5.8

0.00025< 0.12

< 14P24819SVHS

24819 PANAM

A AVE2011-04-21

12:22House

21.70.33

< 14< 0.84

< 14< 14

2.6< 1.4

< 1.4< 1.4

1.9< 0.13

< 14P24819SVB

24819 PANAM

A AVE2011-04-21

12:31Back

210.33

11< 0.34

< 8.8< 14

< 5.7< 7.9

< 4.4< 3.7

< 5.8< 0.00023

< 0.12< 14

P24819SVBS24819 PAN

AMA AVE

2011-04-2112:31

Back21.8

0.378< 17

< 1< 17

< 17< 1.7

< 1.7< 1.7

< 1.72.2

< 0.16< 17

P24819SVB24819 PAN

AMA AVE

2013-08-2214:46

Back20

0.64< 29

4.9 J, b< 9.1

< 14< 5.9

< 8.2< 4.6

< 3.9< 6

< 0.00024< 0.12

< 15P24819SVH

24819 PANAM

A AVE2013-08-22

15:07House

200.6

< 294.2 J, b

< 9.1< 14

< 5.9< 8.2

< 4.6< 3.9

< 6< 0.00024

< 0.12< 15

P24819SVF24819 PAN

AMA AVE

2013-08-2215:22

Front20

0.4931

2.4 J, b< 8.9

< 14< 5.8

< 8< 4.5

< 3.8< 5.9

< 0.00024< 0.12

< 15P24822SVH

24822 PANAM

A AVE2010-06-23

09:06House

181.5

143.6 J

11< 3.4

< 5.7< 7.9

< 4.4< 3.7

< 5.8< 0.00023

< 0.1229

P24822SVB24822 PAN

AMA AVE

2010-06-2309:51

Back20

0.7621

< 2.4< 9

5.7< 5.8

< 8.1< 4.5

< 3.8< 5.9

< 0.00024< 0.12

< 3.7P24822SVF

24822 PANAM

A AVE2010-06-23

10:32Front

200.35

31< 2.2

< 8.312

< 5.4< 7.5

< 4.1< 3.5

< 5.4< 0.00022

< 0.11< 3.4

P24822SVH24822 PAN

AMA AVE

2013-06-2010:29

House19

2.643

1.1 J, b< 9.3

< 14< 6

< 8.4< 4.6

< 3.9< 6.1

< 0.00025< 0.12

< 15P24822SVF

24822 PANAM

A AVE2013-06-20

10:35Front

210.26

< 28< 0.78

< 8.7< 14

< 5.7< 7.9

< 4.4< 3.7

< 5.7< 0.00023

0.15< 14

P24822SVFD24822 PAN

AMA AVE

2013-06-2010:35

Front21

0.26< 28

0.87 J, b< 8.9

< 14< 5.8

< 8< 4.4

< 3.8< 5.8

< 0.000240.14

< 15P24822SVB

24822 PANAM

A AVE2013-06-21

08:41Back

210.82

< 30< 0.85

< 9.4< 15

< 6.1< 8.5

< 4.7< 4

< 6.2< 0.00025

< 0.12< 16

P24828SVH24828 PAN

AMA AVE

2011-10-2708:46

House10

6.3< 7.4

1.6 J, b< 5.8

< 9.1< 3.8

< 5.2< 2.9

< 2.5< 3.8

< 0.00016< 0.078

< 9.6P24828SVB

24828 PANAM

A AVE2011-10-27

09:21Back

210.24

8.31.1 J, b

< 5.5< 8.6

< 3.6< 5

< 2.8< 2.3

< 3.6< 0.00015

< 0.073< 9.1

P24828SVBS24828 PAN

AMA AVE

2011-10-2709:21

Back21.3

0.255< 16 U

< 0.95 U< 16 U

< 16 U< 1.6 U

< 1.6 U< 1.6 U

< 1.6 U2.1

< 0.15 U< 16 U

P24828SVF24828 PAN

AMA AVE

2011-10-2710:03

Front20

0.72< 7.5

0.46 J, b< 6

< 9.3< 3.8

< 5.4< 3

< 2.5< 3.9

0.00022< 0.079

< 9.8P24828SVB

24828 PANAM

A AVE2012-09-13

10:20Back

191.3

341.9 J, b

< 9< 14

< 5.8< 8.1

< 4.5< 3.8

< 5.9< 0.00024

< 0.12< 15

P24828SVBS24828 PAN

AMA AVE

2012-09-1310:20

Back19.9

1.45< 20 U

< 0.82 U< 20 U

< 20 U< 2 U

< 2 U< 2 U

< 2 U< 2 U

< 0.16 U< 20 U

P24828SVH24828 PAN

AMA AVE

2012-09-1310:24

House15

4.728

1.4 J, b< 8.1

< 13< 5.3

< 7.3< 4.1

< 3.4< 5.3

< 0.00022< 0.11

< 13P24828SVF

24828 PANAM

A AVE2012-09-13

10:51Front

200.92

275.2 J, b

< 8.6< 14

< 5.6< 7.8

< 4.3< 3.6

< 5.7< 0.00023

< 0.11< 14

P24828SVB24828 PAN

AMA AVE

2013-04-1614:53

Back20

1.4< 27

1.4 J, b< 8.7

< 14< 5.6

< 7.8< 4.4

< 3.7< 5.7

< 0.00023< 0.12

< 14P24828SVH

24828 PANAM

A AVE2013-04-16

15:01House

165.6

< 301.1 J, b

18< 15

< 6.2< 8.7

< 4.8< 4.1

< 6.3< 0.00026

< 0.13< 16

P24828SVF24828 PAN

AMA AVE

2013-04-1615:21

Front21

0.99< 30

0.96 J, b< 9.6

< 15< 6.2

< 8.6< 4.8

< 4< 6.3

< 0.00025< 0.13

< 16P24829SVH

24829 PANAM

A AVE2010-05-21

09:17House

200.34

42< 2.3

156.4

< 5.6< 7.8

< 4.36.6 b

< 5.7< 0.00023

< 0.11< 3.6

P24829SVP24829 PAN

AMA AVE

2010-05-2110:31

Back Patio21

< 0.022130

< 2.233

165.7

< 7.618

28 b< 5.5

< 0.00022< 0.11

< 3.5P24829SVPS

24829 PANAM

A AVE2010-05-21

10:31Back Patio

21.9< 0.15

810.95 J

< 17< 17

5.4< 1.7

< 1.7< 1.7

2.3< 0.15

< 17P24829SVF

24829 PANAM

A AVE2010-05-21

11:21Front

200.17

44< 2.4

179.7

< 5.9< 8.2

< 4.67.1 b

< 6< 0.00024

< 0.124.4

P24829SVH24829 PAN

AMA AVE

2010-09-1308:53

House20

0.4816

< 1.316

3.9< 5.7

< 7.9< 4.4

< 3.7< 5.8

< 0.00023< 0.12

< 3.6P24829SVF

24829 PANAM

A AVE2010-09-13

09:52Front

200.41

16< 1.4

< 9< 3.5

< 5.8< 8.1

< 4.5< 3.8

< 5.9< 0.00024

< 0.12< 3.7

P24829SVFS24829 PAN

AMA AVE

2010-09-1309:52

Front21.7

0.484< 17

< 1.4< 17

< 17< 1.7

< 1.7< 1.7

< 1.72.3

< 0.16< 17

P24829SVB24829 PAN

AMA AVE

2010-09-1310:42

Back Patio20

0.11180

< 1.3< 8.8

< 3.4< 5.7

< 7.9< 4.4

< 3.7< 5.8

< 0.000230.15

< 3.6P24829SVBS

24829 PANAM

A AVE2010-09-13

10:42Back Patio

21.8< 0.15

28< 1.3

< 17< 17

2.9< 1.7

< 1.7< 1.7

2.4< 0.15

24P24829SVH

24829 PANAM

A AVE2013-05-09

10:16House

210.55

< 282.1 J, b

< 8.9< 14

20< 8

< 4.4< 3.8

< 5.8< 0.00024

< 0.12< 15

P24829SVF24829 PAN

AMA AVE

2013-05-0910:26

Front21

0.34< 30

1.7 J, b< 9.6

< 15150

< 8.6< 4.8

< 4.1< 6.3

< 0.00026< 0.13

< 16P24829SVFD

24829 PANAM

A AVE2013-05-09

10:26Front

210.34

< 301.6 J, b

< 9.6< 15

160< 8.6

< 4.8< 4

< 6.3< 0.00025

< 0.13< 16

P24832SVG24832 PAN

AMA AVE

2010-10-0609:38

Garage

151.5

32< 1.3

< 8.85.9

< 5.7< 7.9

< 4.4< 3.7

< 5.8< 0.00023

< 0.12< 3.6

P24832SVB24832 PAN

AMA AVE

2010-10-0610:13

Back18

2.217

< 1.3< 8.7

< 3.4< 5.6

< 7.8< 4.4

< 3.7< 5.7

< 0.00023< 0.12

< 3.6P24832SVH

24832 PANAM

A AVE2010-10-06

10:56House

190.23

252.8 J

< 8.8< 3.4

< 5.7< 7.9

< 4.4< 3.7

< 5.8< 0.00023

< 0.1226

P24832SVB24832 PAN

AMA AVE

2012-09-2815:01

Back18

2.6< 29

1.3 J, b< 9.3

< 14< 6

< 8.4< 4.6

< 3.9< 6.1

< 0.00025< 0.12

< 15P24832SVG

24832 PANAM

A AVE2012-09-28

15:21G

arage14

5.233

0.68 J, b< 9

< 14< 5.8

< 8.1< 4.5

< 3.8< 5.9

< 0.00024< 0.12

< 15P24832SVH

24832 PANAM

A AVE2012-09-28

16:10House

191.5

360.58 J, b

13< 14

< 5.6< 7.8

< 4.3< 3.6

< 5.7< 0.00023

< 0.11< 14

P24832SVH24832 PAN

AMA AVE

2013-05-1614:55

House20

1.2< 29

1.2 J, b< 9.2

< 14< 6

< 8.3< 4.6

< 3.9< 6

< 0.00024< 0.12

< 15P24832SVB

24832 PANAM

A AVE2013-05-16

15:04Back

192.6

< 290.98 J, b

< 9.1< 14

< 5.9< 8.2

25 j< 3.9

< 6< 0.00024

< 0.12< 15

P24832SVBD24832 PAN

AMA AVE

2013-05-1615:04

Back19

2.534

0.67 J, b< 9.2

< 14< 5.9

< 8.2130 j

< 3.9< 6

< 0.00024< 0.12

< 15P24832SVG

24832 PANAM

A AVE2013-05-16

15:28G

arage18

3.535

< 0.56< 8.6

< 13< 5.5

< 7.7< 4.3

< 3.6< 5.6

< 0.00023< 0.11

< 14

Page 272: Table Proposed Cleanup Levels Groundwater · 10/21/2013  · Table 04 Summery of PrsllMnery Cost ES11motee for Soleening Feasibility Study Former Kest Property Carson, CA GeotFnlenGOneullanle

Table B-2Sub-Slab Soil Vapor Results

Former Kast Property

Carson, California

Residential Properties Sampled Through August 31, 2013

Page 40 of 235

Oxygen

Oxygen/Argon

Carbon Dioxide

AcetoneN

aphthaleneEthanol

2-Butanone (M

ethyl Ethyl Ketone)

ChloroformTetrachloro-

etheneToluene

BenzeneFreon 12

Methane

HeliumCarbon

DisulfideM

OL %

MO

L %M

OL %

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

MO

L %M

OL %

UG

/M3

100.00%100.00%

92.56%52.63%

49.98%18.72%

17.61%16.54%

8.00%7.84%

7.80%6.94%

6.17%5.34%

4.80%Sam

ple IDAddress

Sample D

ateSam

ple Time

Location

AnalyteU

nitsFrequency of D

etection

P24833SVH24833 PAN

AMA AVE

2010-10-1409:36

House18

0.3270

1.4 J100

66< 5.1

< 7.1< 3.9

< 3.3< 5.2

0.00058< 0.1

< 3.2P24833SVF

24833 PANAM

A AVE2010-10-14

10:20Front

180.072

48< 1.4

1112

< 5.8< 8.1

< 4.5< 3.8

< 5.9< 0.00023

< 0.118

P24833SVB24833 PAN

AMA AVE

2010-10-1411:06

Back16

0.08631

1.6 J< 8.8

< 3.416

< 7.9< 4.4

< 3.7< 5.8

0.0027< 0.12

< 3.6P24833 SVB

24833 PANAM

A AVE2012-11-29

14:47Back

210.24

< 270.94 J, b

< 8.6< 14

< 5.6< 7.8

< 4.3< 3.6

< 5.7< 0.00023

< 0.11< 14

P24833 SVH24833 PAN

AMA AVE

2012-11-2914:49

House18

2.348 b

1.1 J, b9.6 b

< 13< 5.4

< 7.5< 4.1

< 3.5< 5.4

< 0.00022< 0.11

< 14P24833 SVF

24833 PANAM

A AVE2012-11-29

15:19Front

210.21

< 300.95 J, b

< 9.5< 15

< 6.2< 8.5

< 4.7< 4

< 6.2< 0.00025

< 0.13< 16

P24833SVH24833 PAN

AMA AVE

2013-05-0914:46

House19

1.932

1.2 J, b15

< 14< 5.6

< 7.849

< 3.7< 5.7

< 0.00023< 0.12

< 14P24833SVB

24833 PANAM

A AVE2013-05-09

14:51Back

210.35

< 280.78 J, b

< 8.9< 14

< 5.8< 8

< 4.5< 3.8

< 5.9< 0.00024

< 0.12< 15

P24833SVF24833 PAN

AMA AVE

2013-05-0915:15

Front22

0.19< 170

26 J, b< 54

< 84< 35

< 48< 27

< 23< 35

< 0.00059< 0.3

< 88P24838SVB2

24838 PANAM

A AVE2009-09-22

14:17Back

201.2

< 12< 3.2

< 9.7< 3.8

24< 8.7

< 4.87.9

< 6.4< 0.00026

4.1P24838SVF

24838 PANAM

A AVE2009-09-22

14:54Front

163.1

1811 J

< 9.6< 3.8

< 6.274

< 4.8< 4.1

< 6.3< 0.00026

< 4P24838SVH

24838 PANAM

A AVE2010-06-01

09:00House

182.7

59< 4.1

< 8.87

< 5.7< 8

< 4.4< 3.8

< 5.80.00035

< 0.12< 3.6

P24838SVF24838 PAN

AMA AVE

2010-06-0110:36

Front20

1.421

< 4< 8.6

< 3.4< 5.6

28< 4.3

< 3.6< 5.6

< 0.00023< 0.11

< 3.6P24838SVB3

24838 PANAM

A AVE2010-09-08

08:55Back

210.16

18< 1.3

< 8.4< 3.3

8.4< 7.6

< 4.2< 3.6

< 5.5< 0.00022

< 0.11< 3.5

P24838SVB324838 PAN

AMA AVE

2013-05-0810:40

Back22

0.9< 31

7.7 J, b< 10

< 16< 6.5

< 9< 5

< 4.2< 6.6

< 0.00026< 0.13

< 16P24838SVH

24838 PANAM

A AVE2013-05-08

10:45House

193

< 291.1 J, b

< 9.2< 14

< 6< 8.3

< 4.6< 3.9

< 6< 0.00024

0.24< 15

P24838SVF24838 PAN

AMA AVE

2013-05-0811:08

Front21

1.2< 28

0.85 J, b< 9

< 14< 5.8

32< 4.5

< 3.8< 5.9

< 0.00024< 0.12

< 15P24838SVFD

24838 PANAM

A AVE2013-05-08

11:08Front

211.2

74< 8.8

< 14< 5.7

33< 4.4

< 3.8< 5.8

< 0.00024< 0.12

< 15N

24904SVH24904 N

EPTUN

E AVE2010-07-16

13:01House

200.79

26< 7

204.1

< 6.4< 9

< 5< 4.2

< 6.5< 0.00026

< 0.13< 4.1

N24904SVG

24904 NEPTU

NE AVE

2010-07-1613:35

Garage

20< 0.026

70< 6.8

2612

< 6.3< 8.8

< 4.911 j

< 6.4< 0.00026

< 0.13< 4

N24904SVB

24904 NEPTU

NE AVE

2010-07-1614:11

Back20

< 0.02364

< 6.228

9< 5.7

< 7.9< 4.4

3.7 j< 5.8

< 0.00023< 0.12

< 3.6N

24904SVG24904 N

EPTUN

E AVE2012-09-14

16:04G

arage20

0.6544

4.3 J, b< 9.1

< 14< 5.9

< 8.2< 4.6

< 3.9< 6

< 0.00024< 0.12

< 15N

24904SVGD

24904 NEPTU

NE AVE

2012-09-1416:04

Garage

200.63

633.4 J, b

12< 14

< 5.8< 8.1

< 4.5< 3.8

< 5.9< 0.00024

< 0.12< 15

N24904SVH

24904 NEPTU

NE AVE

2012-09-1416:15

House20

1.181

2.6 J, b< 9

< 14< 5.8

< 8.1< 4.5

< 3.8< 5.9

< 0.00024< 0.12

< 15N

24904SVB24904 N

EPTUN

E AVE2012-09-14

16:39Back

201.3

463.2 J, b

< 9.3< 14

< 6< 8.4

< 4.6< 3.9

< 6.1< 0.00025

< 0.12< 15

N24904SVB

24904 NEPTU

NE AVE

2013-06-1809:52

Back21

0.6< 29

1.1 J, b< 9.2

< 14< 5.9

< 8.2< 4.6

< 3.9< 6

< 0.00024< 0.12

< 15N

24904SVBS24904 N

EPTUN

E AVE2013-06-18

09:52Back

21.40.598

25< 0.76 U

< 21 U< 21 U

< 2.1 U< 2.1 U

< 2.1 U< 2.1 U

< 2.1 U< 0.17 U

< 21 UN

24904SVH24904 N

EPTUN

E AVE2013-06-18

10:06House

200.96

< 261.3 J, b

< 8.4< 13

< 5.4< 7.6

< 4.2< 3.6

< 5.5< 0.00022

< 0.11< 14

N24904SVG

24904 NEPTU

NE AVE

2013-06-1810:33

Garage

210.5

340.92 J, b

< 9.1< 14

< 5.9< 8.2

< 4.6< 3.9

< 6< 0.00024

< 0.12< 15

N24904SVG

S24904 N

EPTUN

E AVE2013-06-18

10:33G

arage21.6

0.48325

< 0.73 U< 20 U

< 20 U< 2 U

< 2 U< 2 U

< 2 U< 2 U

< 0.16 U< 20 U

N24912SVB

24912 NEPTU

NE AVE

2009-09-3013:15

Back21

0.1141 b

6.3 J< 9.2

5.2 b< 6

< 8.3< 4.6

12< 6

< 0.00024< 3.8

N24912SVF

24912 NEPTU

NE AVE

2009-09-3013:55

Front17

4.712 b

5.3 J< 9.1

< 3.6< 5.9

< 8.2< 4.6

< 3.9< 6

< 0.00024< 3.8

N24912SVH

24912 NEPTU

NE AVE

2010-06-1409:58

House18

1.976 b

< 2.313

8 b11

< 8< 4.4

4.8< 5.8

< 0.00024< 0.12

< 3.6N

24912SVB24912 N

EPTUN

E AVE2010-06-14

10:48Back

200.19

31 b7.2 J

< 9.77.7 b

< 6.3< 8.7

522

< 6.4< 0.00026

< 0.13130

N24912SVF

24912 NEPTU

NE AVE

2010-06-1411:36

Front17

5.341 b

< 2.416

6.7 b< 6

< 8.3< 4.6

4.1< 6

< 0.00024< 0.12

5.1N

24912SVH24912 N

EPTUN

E AVE2012-03-16

15:11House

164.4

253.1 J, b

< 7.4< 12

< 4.810

< 3.7< 3.1

< 4.8< 0.0002

< 0.098< 12

N24912SVF

24912 NEPTU

NE AVE

2012-03-1615:32

Front18

4< 19

1.8 J, b< 6.1

< 9.5< 3.9

< 5.5< 3

< 2.6< 4

< 0.00016< 0.08

< 10N

24912SVFD24912 N

EPTUN

E AVE2012-03-16

15:32Front

184

< 199.4 J, b

< 6.1< 9.5

< 3.9< 5.5

< 3< 2.6

< 4< 0.00016

< 0.08< 10

N24912SVB

24912 NEPTU

NE AVE

2012-03-1616:13

Back21

0.1< 19

1.2 J, b< 6.2

< 9.7< 4

< 5.6< 3.1

< 2.6< 4

< 0.00016< 0.082

< 10244301SVH

301 244TH ST2010-10-18

09:35House

210.2

18< 1.3

< 8.8< 3.4

< 5.7150

< 4.4< 3.7

< 5.8< 0.00023

< 0.1216

244301SVF301 244TH ST

2010-10-1810:08

Front21

0.0419

< 1.39.6

3.4< 5.7

< 7.9< 4.4

< 3.7< 5.8

< 0.00023< 0.12

< 3.6244301SVB

301 244TH ST2010-10-18

10:51Back

21< 0.022

33< 1.3

19< 3.3

< 5.531

< 4.2< 3.6

< 5.5< 0.00022

< 0.11< 3.5

244301SVH301 244TH ST

2013-01-3109:50

House21

0.16< 28

2.3 J, b< 8.8

< 14< 5.7

16< 4.4

< 3.7< 5.8

< 0.00023< 0.12

< 14244301SVB

301 244TH ST2013-01-31

10:06Back

220.071

< 282 J, b

< 9< 14

< 5.8< 8.1

< 4.5< 3.8

< 5.9< 0.00024

< 0.12< 15

244301SVF301 244TH ST

2013-01-3110:19

Front21

0.062< 28

1.8 J, b< 9

< 14< 5.8

< 8.1< 4.5

< 3.8< 5.9

< 0.00024< 0.12

< 15244301SVFD

301 244TH ST2013-01-31

10:19Front

210.066

< 281.5 J, b

< 9< 14

< 5.8< 8.1

< 4.5< 3.8

< 5.9< 0.00024

< 0.12< 15

244301SVH301 244TH ST

2013-06-2610:17

House21

0.23< 27

< 0.77< 8.6

< 13< 5.6

21< 4.3

< 3.6< 5.6

< 0.00023< 0.11

< 14244301SVF

301 244TH ST2013-06-26

10:40Front

220.085

< 27< 0.77

< 8.6< 13

< 5.6< 7.7

< 4.3< 3.6

< 5.6< 0.00023

< 0.11< 14

244301SVB301 244TH ST

2013-06-2610:44

Back22

0.13< 31

< 0.88< 9.8

< 15< 6.4

10< 4.9

< 4.2< 6.4

< 0.00026< 0.13

< 16244301SVBD

301 244TH ST2013-06-26

10:44Back

210.12

39< 0.85

< 9.5< 15

< 6.29.7

< 4.7< 4

< 6.2< 0.00025

< 0.13< 16

244305SVH305 244TH ST

2010-07-0114:36

House20

0.09727

5.5 J12

4.18.2

< 7.9< 4.4

< 3.7< 5.8

< 0.00023< 0.12

< 3.6244305SVG

305 244TH ST2010-07-01

15:23G

arage18

< 0.024160

< 2.49.9

22< 5.8

< 8.1< 4.5

4.6< 5.9

< 0.00024< 0.12

4.4

Page 273: Table Proposed Cleanup Levels Groundwater · 10/21/2013  · Table 04 Summery of PrsllMnery Cost ES11motee for Soleening Feasibility Study Former Kest Property Carson, CA GeotFnlenGOneullanle

Table B-2Sub-Slab Soil Vapor Results

Former Kast Property

Carson, California

Residential Properties Sampled Through August 31, 2013

Page 41 of 235

Oxygen

Oxygen/Argon

Carbon Dioxide

AcetoneN

aphthaleneEthanol

2-Butanone (M

ethyl Ethyl Ketone)

ChloroformTetrachloro-

etheneToluene

BenzeneFreon 12

Methane

HeliumCarbon

DisulfideM

OL %

MO

L %M

OL %

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

MO

L %M

OL %

UG

/M3

100.00%100.00%

92.56%52.63%

49.98%18.72%

17.61%16.54%

8.00%7.84%

7.80%6.94%

6.17%5.34%

4.80%Sam

ple IDAddress

Sample D

ateSam

ple Time

Location

AnalyteU

nitsFrequency of D

etection

244305SVB305 244TH ST

2010-07-0116:06

Back19

< 0.025140

< 2.5< 9.5

7.9< 6.2

< 8.6< 4.8

4< 6.2

< 0.00025< 0.13

< 3.9244305SVH

305 244TH ST2012-10-18

14:50House

200.66

< 28< 0.59 PF

< 9< 14

< 5.8< 8.1

< 4.5< 3.8

< 5.9< 0.00024

< 0.12< 15

244305SVG305 244TH ST

2012-10-1815:00

Garage

201.7

31< 0.58 PF

< 8.8< 14

< 5.7< 7.9

< 4.4< 3.7

< 5.8< 0.00031

< 0.16< 14

244305SVB305 244TH ST

2012-10-2212:54

Back20

0.8633

< 0.59 PF< 9

< 14< 5.8

< 8.1< 4.5

< 3.8< 5.9

< 0.00024< 0.12

< 15244305SVG

305 244TH ST2013-04-24

15:14G

arage20

1.2< 28

< 0.58 PF< 8.8

< 14< 5.7

< 8< 4.4

< 3.8< 5.8

< 0.00024< 0.12

< 15244305SVH

305 244TH ST2013-04-24

15:14House

210.48

< 30< 0.63 PF

< 9.6< 15

< 6.2< 8.7

< 4.8< 4.1

< 6.3< 0.00026

< 0.13< 16

244305SVHD305 244TH ST

2013-04-2415:14

House21

0.46< 30

< 0.63 PF< 9.6

< 15< 6.2

< 8.7< 4.8

< 4.1< 6.3

< 0.00026< 0.13

< 16244305SVB

305 244TH ST2013-04-24

15:58Back

210.61

< 27< 0.56 PF

< 8.6< 14

< 5.6< 7.8

< 4.3< 3.6

< 5.7< 0.00023

< 0.11< 14

244317SVH317 244TH ST

2011-01-2409:07

House21

< 0.02326

1.4 J, b< 8.6

< 3.4< 5.6

< 7.7< 4.3

< 3.6< 5.6

0.00024< 0.11

< 3.6244317SVG

317 244TH ST2011-01-24

09:51G

arage21

< 0.02322

1.3 J, b< 8.5

< 3.3< 5.5

< 7.7< 4.2

< 3.6< 5.6

< 0.00023< 0.11

< 3.5244317SVB

317 244TH ST2011-01-24

10:27Back

21< 0.023

< 44< 5.3

< 35< 14

8400< 32

< 18< 15

< 230.0003

< 0.12< 14

244317SVB317 244TH ST

2011-03-2415:44

Back21

0.0423

1.4 J, b10

< 14380

< 8.1< 4.5

< 3.8< 5.9

< 0.00024< 0.12

< 15244317SVBS

317 244TH ST2011-03-24

15:44Back

22.3< 0.16

< 18< 1

< 18< 18

390 D< 1.8

< 1.8< 1.8

2.8< 0.16

< 18244317SVG

317 244TH ST2011-03-24

15:58G

arage21

0.24< 11

< 1.3 UJ

< 8.4< 13

< 5.5< 7.6

< 4.2< 3.6

< 5.50.00024

< 0.11< 14

244317SVH317 244TH ST

2011-03-2416:33

House21

0.083170

< 1.3 UJ

2036

< 5.716

< 4.4< 3.7

< 5.80.00025

< 0.12< 14

244321SVH321 244TH ST

2010-11-1808:54

House21

0.46< 11

7 J, b< 8.8

< 3.5< 5.7

< 8< 4.4

< 3.8< 5.8

< 0.00024< 0.12

< 3.6244321SVB

321 244TH ST2010-11-18

09:36Back

21< 0.022

261.1 J, b

12< 3.2

< 5.3< 7.3

< 4.1< 3.4

< 5.3< 0.00022

< 0.11< 3.4

244321SVBD321 244TH ST

2010-11-1809:36

Back22

< 0.02120

1 J, b< 8

< 3.1< 5.2

< 7.2< 4

< 3.4< 5.3

< 0.00021< 0.11

< 3.3244321SVF

321 244TH ST2010-11-18

10:13Front

210.084

121.8 J, b

< 8.8< 3.4

< 5.7< 7.9

< 4.4< 3.7

< 5.8< 0.00023

< 0.12< 3.6

244321SVB321 244TH ST

2013-03-2209:59

Back21

0.35< 27

1.6 J, b< 8.6

< 13< 5.5

< 7.7< 4.3

< 3.6< 5.6

< 0.00023< 0.11

< 14244321SVBS

321 244TH ST2013-03-22

09:59Back

21.80.355

< 19 U< 0.79 U

< 19 U< 19 U

< 1.9 U< 1.9 U

< 1.9 U< 1.9 U

2< 0.15 U

< 19 U244321SVH

321 244TH ST2013-03-22

09:59House

200.42

493 J, b

< 9.215

< 6< 8.3

< 4.6< 3.9

< 6< 0.00024

< 0.12< 15

244321SVF321 244TH ST

2013-03-2210:33

Front21

0.18< 29

1.3 J, b< 9.2

< 14< 6

< 8.3< 4.6

< 3.9< 6

< 0.00024< 0.12

< 15244321SVFS

321 244TH ST2013-03-22

10:33Front

21.90.183

< 20 U< 0.85 U

< 20 U< 20 U

< 2 U< 2 U

< 2 U< 2 U

2.4< 0.16 U

< 20 U244321SVH

321 244TH ST2013-08-02

09:31House

200.56

< 25< 0.71

< 8< 12

< 5.2< 7.2

< 4< 3.4

< 5.2< 0.00021

< 0.11< 13

244321SVB321 244TH ST

2013-08-0209:47

Back21

0.1240

< 0.78< 8.7

< 14< 5.7

< 7.9< 4.4

< 3.7< 5.7

< 0.00023< 0.12

< 14244321SVBS

321 244TH ST2013-08-02

09:47Back

21.8< 0.16 U

< 21 U< 0.74 U

< 21 U< 21 U

< 2.1 U< 2.1 U

< 2.1 U< 2.1 U

2.1< 0.16 U

< 21 U244321SVF

321 244TH ST2013-08-02

09:58Front

200.15

37< 0.79

< 8.8< 14

< 5.7< 8

< 4.4< 3.8

< 5.8< 0.00024

< 0.12< 15

244327SVH327 244TH ST

2010-05-0513:40

House20

0.09218

< 6.314

< 3.5< 5.8

< 8.1< 4.5

< 3.8< 5.9

< 0.00024< 0.12

< 3.7244327SVG

327 244TH ST2010-05-05

15:51G

arage20

1.319

< 6.4< 9.1

< 3.6< 5.9

< 8.2< 4.6

< 3.9< 6

< 0.00024< 0.12

< 3.8244327SVB

327 244TH ST2010-05-05

16:39Back

21< 0.023

26< 6.2

< 8.8< 3.4

26< 7.9

< 4.4< 3.7

< 5.8< 0.00023

0.2< 3.6

244327SVB327 244TH ST

2013-02-1410:05

Back22

0.059< 28

1.1 J, b< 9

< 14< 5.8

< 8.1< 4.5

< 3.8< 5.9

< 0.000240.12

< 15244327SVBD

327 244TH ST2013-02-14

10:05Back

230.049

< 290.86 J, b

< 9.1< 14

< 5.9< 8.2

< 4.6< 3.9

< 6< 0.00024

< 0.12< 15

244327SVH327 244TH ST

2013-02-1410:12

House21

1< 28

0.89 J, b< 9

< 14< 5.8

< 8.1< 4.5

< 3.8< 5.9

< 0.00024< 0.12

< 15244327SVG

327 244TH ST2013-02-14

10:39G

arage21

1.2< 29

0.77 J, b< 9.1

< 14< 5.9

< 8.2< 4.6

< 3.9< 6

< 0.00024< 0.12

< 15244327SVB

327 244TH ST2013-07-31

09:53Back

220.058

< 27< 0.76

< 8.6< 13

9.8< 7.7

< 4.3< 3.6

< 5.6< 0.00023

< 0.11< 14

244327SVBD327 244TH ST

2013-07-3109:53

Back21

0.05854

< 0.76< 8.5

< 139.1

< 7.7< 4.2

< 3.6< 5.6

< 0.00023< 0.11

< 14244327SVH

327 244TH ST2013-07-31

10:02House

201.3

< 29< 0.81

< 9.1< 14

< 5.9< 8.2

< 4.5< 3.8

< 6< 0.00024

< 0.12< 15

244327SVG327 244TH ST

2013-07-3110:24

Garage

201.4

< 28< 0.8

< 8.9< 14

< 5.8< 8

< 4.4< 3.8

< 5.8< 0.00024

< 0.12< 15

244331SVH331 244TH ST

2010-08-0413:23

House20

0.4915

< 6.316

< 3.5< 5.8

< 8.1< 4.5

< 3.8< 5.9

< 0.00024< 0.12

< 3.7244331SVG

331 244TH ST2010-08-04

14:04G

arage18

0.1938

< 6.214

3.5< 5.7

16< 4.4

13< 5.8

< 0.00024< 0.12

< 3.6244331SVB

331 244TH ST2010-08-04

14:40Back

200.09

17< 6.3

11< 3.5

< 5.8< 8

< 4.56.6

< 5.9< 0.00024

< 0.12< 3.7

244331SVH331 244TH ST

2012-08-3015:14

House20

0.9937

3.4 J, b12

< 13< 5.3

< 7.3< 4.1

< 3.4< 5.3

< 0.00022< 0.11

< 13244331SVG

331 244TH ST2012-08-30

15:50G

arage18

2.534

2.7 J, b11

< 15< 6.3

18< 4.9

< 4.1< 6.4

< 0.00026< 0.13

< 16244331SVB

331 244TH ST2012-08-30

16:39Back

190.44

< 291.9 J, b

< 9.3< 14

< 6< 8.4

< 4.6< 3.9

< 6.1< 0.00025

< 0.12< 15

244331SVBD331 244TH ST

2012-08-3016:39

Back21

0.4843

1.7 J, b12

< 14< 6

< 8.4< 4.6

< 3.9< 6.1

< 0.00025< 0.12

< 15244331SVH

331 244TH ST2013-05-01

10:25House

210.56

364 J, b

< 8.9< 14

< 5.8< 8

< 4.4< 3.8

< 5.8< 0.00024

< 0.12< 15

244331SVG331 244TH ST

2013-05-0110:52

Garage

201.7

382.9 J, b

< 8.7< 14

< 5.613

< 4.3< 3.7

< 5.7< 0.00023

< 0.12< 14

244331SVB331 244TH ST

2013-05-0111:14

Back21

0.36< 27

2.4 J, b< 8.7

< 14< 5.6

< 7.8< 4.3

< 3.7< 5.7

< 0.00023< 0.12

< 14244331SVBD

331 244TH ST2013-05-01

11:14Back

220.36

321.9 J, b

< 8.8< 14

< 5.7< 7.9

< 4.4< 3.7

< 5.8< 0.00023

< 0.12< 14

244337SVH337 244TH ST

2010-08-1614:11

House20

0.2717

< 621

< 3.4< 5.6

< 7.8< 4.3

< 3.6< 5.7

< 0.00023< 0.11

< 3.6244337SVF

337 244TH ST2010-08-16

14:49Front

190.9

13< 6.2

11< 3.4

< 5.7< 7.9

< 4.4< 3.7

< 5.8< 0.00023

< 0.12< 3.6

Page 274: Table Proposed Cleanup Levels Groundwater · 10/21/2013  · Table 04 Summery of PrsllMnery Cost ES11motee for Soleening Feasibility Study Former Kest Property Carson, CA GeotFnlenGOneullanle

Table B-2Sub-Slab Soil Vapor Results

Former Kast Property

Carson, California

Residential Properties Sampled Through August 31, 2013

Page 42 of 235

Oxygen

Oxygen/Argon

Carbon Dioxide

AcetoneN

aphthaleneEthanol

2-Butanone (M

ethyl Ethyl Ketone)

ChloroformTetrachloro-

etheneToluene

BenzeneFreon 12

Methane

HeliumCarbon

DisulfideM

OL %

MO

L %M

OL %

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

MO

L %M

OL %

UG

/M3

100.00%100.00%

92.56%52.63%

49.98%18.72%

17.61%16.54%

8.00%7.84%

7.80%6.94%

6.17%5.34%

4.80%Sam

ple IDAddress

Sample D

ateSam

ple Time

Location

AnalyteU

nitsFrequency of D

etection

244337SVB337 244TH ST

2010-08-1615:32

Back20

0.07937

< 6< 8.6

< 3.46

< 7.8< 4.3

< 3.6< 5.7

< 0.00023< 0.11

< 3.6244337SVH

337 244TH ST2010-11-11

15:05House

210.97

120.35 J

< 8.8< 3.4

< 5.7< 7.9

< 4.4< 3.7

< 5.8< 0.00023

< 0.12< 3.6

244337SVF337 244TH ST

2010-11-1115:44

Front20

113

0.35 J< 8.8

3.5< 5.7

< 7.9< 4.4

< 3.7< 5.8

< 0.00023< 0.12

< 3.6244337SVB

337 244TH ST2010-11-11

16:06Back

210.2

< 11< 0.34

< 8.8< 3.4

< 5.7< 7.9

< 4.4< 3.7

< 5.8< 0.00023

< 0.12< 3.6

244341SVH341 244TH ST

2010-06-3014:18

House20

0.2227

< 2.416

< 3.6< 5.9

< 8.2< 4.6

< 3.9< 6

< 0.00024< 0.12

< 3.8244341SVB

341 244TH ST2010-06-30

15:03Back

21< 0.024

180< 2.3

168.5

< 5.7< 8

< 4.44.4

< 5.8< 0.00024

< 0.124.5

244341SVG341 244TH ST

2010-06-3015:37

Garage

210.062

43< 2.4

9.26.9

< 5.8< 8

< 4.5< 3.8

< 5.9< 0.00024

< 0.1240

244341SVB341 244TH ST

2012-08-0209:47

Back21

0.22< 18

< 2.96.2

< 9.1< 3.8

< 5.2< 2.9

< 2.5< 3.8

< 0.00016< 0.078

< 9.6244341SVBS

341 244TH ST2012-08-02

09:47Back

21.40.178

< 20 U< 0.83 U

< 20 U< 20 U

< 2 U< 2 U

< 2 U< 2 U

2.3< 0.15 U

< 20 U244341SVH

341 244TH ST2012-08-02

10:09House

210.29

19 b< 2.9

< 5.8< 9.1

< 3.8< 5.2

< 2.9< 2.5

< 3.8< 0.00016

< 0.078< 9.6

244341SVG341 244TH ST

2012-08-0210:20

Garage

210.34

< 19< 3.1

< 6.2< 9.7

< 4< 5.6

< 3.1< 2.6

< 4< 0.00016

< 0.082< 10

244341SVGS

341 244TH ST2012-08-02

10:20G

arage21.3

0.36< 21 U

< 0.86 U< 21 U

< 21 U< 2.1 U

< 2.1 U< 2.1 U

< 2.1 U2.1

< 0.16 U< 21 U

244341SVB341 244TH ST

2013-06-0510:04

Back22

0.1743

2.8 J, b< 8.6

< 13< 5.5

< 7.7< 4.3

< 3.6< 5.6

< 0.00023< 0.11

< 14244341SVBS

341 244TH ST2013-06-05

10:04Back

21.90.171

< 19 U< 0.69 U

< 19 U< 19 U

< 1.9 U< 1.9 U

< 1.9 U< 1.9 U

2.1< 0.15 U

< 19 U244341SVH

341 244TH ST2013-06-05

10:05House

220.25

< 284.8 J, b

13< 14

< 5.8< 8.1

< 4.5< 3.8

< 5.9< 0.00024

< 0.12< 15

244341SVG341 244TH ST

2013-06-0510:15

Garage

220.42

< 27< 2.5

< 8.6< 14

< 5.6< 7.8

< 4.3< 3.6

< 5.7< 0.00023

< 0.11< 14

249344SVG344 249TH ST

2010-09-0108:50

Garage

170.27

361.8 J

< 9.14.3

< 5.9< 8.2

< 4.6< 3.9

< 6< 0.00024

< 0.12< 3.8

249344SVF2344 249TH ST

2010-09-0109:32

Front18

0.2757

< 1.3< 8.8

1037

< 7.9< 4.4

< 3.7< 5.8

0.0005< 0.12

< 3.6249344SVB2

344 249TH ST2010-09-01

10:12Back

142.1

221.6 J

< 9.5< 3.7

310< 8.5

< 4.7< 4

< 6.2< 0.00025

< 0.13< 3.9

249344SVH2344 249TH ST

2010-09-0110:52

House19

0.2932

< 1.3< 8.8

7< 5.7

< 7.9< 4.4

< 3.7< 5.8

< 0.000230.35

3.9249344SVH2

344 249TH ST2013-01-24

10:05House

210.93

< 262.1 J, b

< 8.1< 13

< 5.3< 7.3

< 4.1< 3.4

< 5.3< 0.00022

< 0.11< 13

249344SVB2344 249TH ST

2013-01-2410:09

Back15

6.8< 32

1.1 J, b< 10

< 16< 6.6

< 9.1< 5.1

< 4.3< 6.6

< 0.00027< 0.13

< 17249344SVB2D

344 249TH ST2013-01-24

10:09Back

146.7

< 311.3 J, b

< 9.9< 16

< 6.4< 9

< 5< 4.2

< 6.5< 0.00026

< 0.13< 16

249344SVG344 249TH ST

2013-01-2410:35

Garage

202.1

< 281.6 J, b

< 8.8< 14

< 5.7< 7.9

< 4.4< 3.7

< 5.8< 0.00023

< 0.12< 14

249344SVB2344 249TH ST

2013-05-1409:44

Back14

9.5< 30

1.4 J, b< 9.6

< 158.8

< 8.6< 4.8

< 4.1< 6.3

< 0.00026< 0.13

< 16249344SVB2D

344 249TH ST2013-05-14

09:44Back

139.4

< 291.2 J, b

< 9.3< 14

9< 8.4

< 4.6< 3.9

< 6.1< 0.00025

< 0.12< 15

249344SVH2344 249TH ST

2013-05-1409:44

House21

1.2< 31

2.1 J, b< 9.8

< 15< 6.4

< 8.8< 4.9

< 4.2< 6.4

< 0.00026< 0.13

< 16249344SVG

344 249TH ST2013-05-14

10:13G

arage19

3.3< 28

0.82 J, b< 8.8

< 14< 5.7

< 8< 4.4

< 3.8< 5.8

< 0.00024< 0.12

< 15249344SVF2

344 249TH ST2013-05-14

10:22Front

210.84

< 271.1 J, b

< 8.5< 13

17< 7.6

< 4.2< 3.6

< 5.6< 0.00022

< 0.11< 14

249_345SVB345 249TH ST

2009-09-2809:31

Back13

6.511

< 2.9< 8.7

< 3.4< 5.6

< 7.8< 4.3

< 3.7< 5.7

< 0.00023< 3.6

249_345SVF345 249TH ST

2009-09-2810:14

Front15

5.832

14 J< 9.3

6.7< 6

< 8.4< 4.7

< 4< 6.1

< 0.00025< 3.9

249_345SVFD345 249TH ST

2009-09-2810:14

Front15

5.753

14 J13

13< 6.2

< 8.6< 4.8

< 4< 6.2

< 0.00025100

249345SVH345 249TH ST

2010-11-1009:08

House17

1.819

0.42 J, b< 8.7

< 3.4< 5.6

< 7.8< 4.3

< 3.7< 5.7

0.015< 0.12

< 3.6249345SVF

345 249TH ST2010-11-10

09:37Front

164.9

< 12< 0.35

< 9.3< 3.6

< 6< 8.3

< 4.6< 3.9

< 6.10.00029

< 0.12< 3.8

249345SVB345 249TH ST

2010-11-1010:13

Back16

4.2< 11

< 0.33< 8.6

< 3.4< 5.6

< 7.7< 4.3

< 3.6< 5.6

< 0.00023< 0.11

< 3.6249345SVHA

345 249TH ST2012-11-02

14:38House

171.2

360.99 J, b

< 9.8< 15

< 6.3< 8.8

< 4.9< 4.1

< 6.4< 0.00026

< 0.13< 16

249345SVF345 249TH ST

2012-11-0215:07

Front15

6.5< 31

1.6 J, b< 9.9

< 16< 6.4

< 9< 5

< 4.2< 6.5

< 0.00026< 0.13

< 16249345SVB

345 249TH ST2012-11-02

15:08Back

164.5

< 281.5 J, b

< 8.9< 14

< 5.8< 8

< 4.5< 3.8

< 5.9< 0.00024

< 0.12< 15

249345SVHA345 249TH ST

2013-04-2314:16

House19

2.832

< 0.59 PF< 9

< 14< 5.8

< 8.1< 4.5

< 3.8< 5.9

< 0.00024< 0.12

< 15249345SVF

345 249TH ST2013-04-23

14:39Front

184.4

< 30< 0.63 PF

< 9.7< 15

< 6.3< 8.7

< 4.8< 4.1

< 6.4< 0.00026

< 0.13< 16

249345SVFD345 249TH ST

2013-04-2314:39

Front18

4.3< 30

< 0.62 PF< 9.5

< 15< 6.2

< 8.6< 4.8

< 4< 6.2

< 0.00025< 0.13

< 16249345SVB

345 249TH ST2013-04-23

14:48Back

183.2

< 29< 0.61 PF

< 9.3< 14

< 6< 8.3

< 4.6< 3.9

< 6.1< 0.00025

< 0.12< 15

244347SVH347 244TH ST

2010-06-2509:30

House19

0.5232

< 2.3 UJ

< 8.83.8

< 5.7< 7.9

< 4.4< 3.7

< 5.8< 0.00023

0.125.7

244347SVG347 244TH ST

2010-06-2510:17

Garage

200.25

44< 2.3 U

J< 8.7

9.1< 5.6

< 7.8< 4.3

< 3.7< 5.7

< 0.00023< 0.12

< 3.6244347SVB

347 244TH ST2010-06-25

11:09Back

200.18

38< 2.4 U

J9.3

68.3

< 8< 4.5

< 3.8< 5.9

< 0.00024< 0.12

< 3.7244347SVH

347 244TH ST2012-12-21

14:49House

201.2

< 291 J, b

< 9.3< 14

< 6< 8.4

< 4.6< 3.9

< 6.1< 0.00025

< 0.12< 15

244347SVG347 244TH ST

2012-12-2115:00

Garage

210.14

< 280.72 J, b

< 8.8< 14

< 5.7< 7.9

< 4.4< 3.7

< 5.8< 0.00023

< 0.12< 14

244347SVB347 244TH ST

2012-12-2115:13

Back20

0.79< 29

0.76 J, b< 9.3

< 14< 6

< 8.4< 4.6

< 3.9< 6.1

< 0.000250.15

< 15244347SVB

347 244TH ST2013-05-10

10:16Back

210.23

312.1 J, b

9.7< 12

11< 7.2

< 4< 3.4

< 5.2< 0.00021

< 0.11< 13

244347SVBD347 244TH ST

2013-05-1010:16

Back21

0.23< 26

1.7 J, b< 8.1

< 1310

< 7.3< 4

< 3.4< 5.3

< 0.00022< 0.11

< 13244347SVH

347 244TH ST2013-05-10

10:23House

201.5

281.2 J, b

< 8.7< 14

< 5.6< 7.8

< 4.3< 3.7

< 5.7< 0.00023

< 0.12< 14

244347SVG347 244TH ST

2013-05-1010:51

Garage

210.54

401.2 J, b

10< 14

< 5.6< 7.8

< 4.4< 3.7

< 5.7< 0.00023

0.53< 14

Page 275: Table Proposed Cleanup Levels Groundwater · 10/21/2013  · Table 04 Summery of PrsllMnery Cost ES11motee for Soleening Feasibility Study Former Kest Property Carson, CA GeotFnlenGOneullanle

Table B-2Sub-Slab Soil Vapor Results

Former Kast Property

Carson, California

Residential Properties Sampled Through August 31, 2013

Page 43 of 235

Oxygen

Oxygen/Argon

Carbon Dioxide

AcetoneN

aphthaleneEthanol

2-Butanone (M

ethyl Ethyl Ketone)

ChloroformTetrachloro-

etheneToluene

BenzeneFreon 12

Methane

HeliumCarbon

DisulfideM

OL %

MO

L %M

OL %

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

MO

L %M

OL %

UG

/M3

100.00%100.00%

92.56%52.63%

49.98%18.72%

17.61%16.54%

8.00%7.84%

7.80%6.94%

6.17%5.34%

4.80%Sam

ple IDAddress

Sample D

ateSam

ple Time

Location

AnalyteU

nitsFrequency of D

etection

248348SVH348 248TH ST

2010-05-0414:12

House21

0.473

< 6.870

11< 6.3

< 8.812

4.2< 6.4

< 0.00026< 0.13

4248348SVF

348 248TH ST2010-05-04

15:18Front

182

34< 6.6

324.5

22< 8.5

6.4< 4

< 6.2< 0.00025

< 0.12< 3.9

248348SVB348 248TH ST

2010-05-0415:58

Back4.6

1795

< 6.924

228.9

< 8.8< 4.9

21< 6.4

0.012< 0.13

6.9248 348 SVH

348 248TH ST2010-08-26

10:38House

172.3

372.1 J, b

14< 3.6

< 5.9< 8.2

< 4.6< 3.9

< 6< 0.00024

0.59< 3.8

248 348 SVF348 248TH ST

2010-08-2611:48

Front16

5.424

1.5 J, b< 9.5

< 3.7< 6.2

< 8.5< 4.7

24< 6.2

< 0.00025< 0.13

< 3.9248 348 SVFD

348 248TH ST2010-08-26

11:48Front

165.3

18< 1.4

< 9.6< 3.8

< 6.2< 8.6

< 4.87

< 6.3< 0.00026

< 0.13< 4

248 348 SVB348 248TH ST

2010-08-2612:32

Back2.9

2113

< 1.5< 9.8

< 3.8< 6.3

< 8.8< 4.9

5.6< 6.4

0.11< 0.13

< 4248348 SVFS

348 248TH ST2011-01-13

11:15Front

21.20.841

< 18< 1.4

< 18< 18

< 1.8< 1.8

< 1.8< 1.8

2.6< 0.16

< 18248348SVF

348 248TH ST2011-01-13

11:15Front

200.76

< 11< 1.3 J

< 8.8< 3.4

< 5.7< 7.9

< 4.4< 3.7

< 5.8< 0.00023

0.12< 3.6

248 348 SVB348 248TH ST

2011-04-2509:42

Back11

9.9< 11

0.86 J, b< 9

< 14< 5.8

< 8.1< 4.5

< 3.8< 5.9

0.00077< 0.12

< 15248 348 SVF

348 248TH ST2011-04-25

10:39Front

191.8

< 111.3 J, b

< 9< 14

< 5.8< 8.1

< 4.5< 3.8

< 5.9< 0.00024

< 0.12< 15

248 348 SVFD348 248TH ST

2011-04-2510:39

Front19

1.7< 11

0.38 J, b< 9

< 14< 5.8

< 8.1< 4.5

< 3.8< 5.9

< 0.00024< 0.12

< 15249348SVF

348 249TH ST2010-06-21

10:05Front

21< 0.023

42< 2.3

106.1

< 5.6< 7.8

377.1

< 5.7< 0.00023

< 0.12< 3.6

249348SVB348 249TH ST

2010-06-2111:12

Back19

3.137

< 2.310

12< 5.6

< 7.8< 4.4

5.8< 5.7

< 0.00023< 0.12

< 3.6249 348 SVH

348 249TH ST2011-01-28

09:34House

192.2

121.4 J, b

8.9< 3.4

< 5.7< 7.9

< 4.4< 3.7

< 5.8< 0.00023

0.17< 3.6

249 348 SVF348 249TH ST

2011-01-2810:08

Front21

0.065< 11

1.3 J, b< 8.4

< 3.3< 5.5

< 7.6< 4.2

< 3.6< 5.5

< 0.00022< 0.11

< 3.5249348SVFS

348 249TH ST2011-01-28

10:08Front

22.2< 0.16

48< 1.3

< 17< 17

< 1.7< 1.7

< 1.7< 1.7

2.5< 0.16

< 17249348SVH

348 249TH ST2012-08-17

10:28House

122.2

< 282.5 J, b

< 9< 14

< 5.8< 8.1

< 4.5< 3.8

< 5.9< 0.00016

0.18< 15

249348SVF348 249TH ST

2012-08-1710:56

Front14

0.055< 29

2.1 J, b< 9.1

< 14< 5.9

< 8.2< 4.6

< 3.9< 6

< 0.00016< 0.08

< 15249348SVFS

348 249TH ST2012-08-17

10:56Front

21.5< 0.16 U

< 20 U< 0.84 U

< 20 U< 20 U

< 2 U< 2 U

< 2 U< 2 U

2.2< 0.16 U

< 20 U249348SVBA

348 249TH ST2012-08-17

11:31Back

9.84.4

< 284.9 J, b

< 9< 14

41< 8.1

< 4.5< 3.8

< 5.9< 0.00016

< 0.079< 15

244-351SVB351 244TH ST

2009-09-1615:34

Back20

0.9314

< 3.1< 9.3

< 3.6< 6

< 8.4< 4.7

21< 6.1

< 0.00025< 3.9

244-351SVB-D351 244TH ST

2009-09-1615:34

Back20

0.92< 13

< 3.3< 10

< 3.9< 6.5

< 9< 5

18< 6.6

< 0.00027< 4.1

244-351SVF351 244TH ST

2009-09-1616:05

Front21

0.11< 12

4.9 J< 9.3

< 3.6< 6

< 8.3< 4.6

< 3.9< 6.1

< 0.000258.3

244351SVF351 244TH ST

2010-06-1810:31

Front20

0.6875

7.8 J< 9.9

4.1< 6.4

< 9< 5

30< 6.5

< 0.00026< 0.13

< 4.1244351SVB

351 244TH ST2010-06-18

11:03Back

200.66

11< 2.3

< 8.8< 3.4

< 5.7< 7.9

< 4.4< 3.7

< 5.8< 0.00023

< 0.12< 3.6

244351SVH351 244TH ST

2010-06-1811:48

House20

0.8126

< 2.3< 8.8

< 3.4< 5.7

< 7.9< 4.4

< 3.7< 5.8

< 0.00023< 0.12

3.7244351SVF

351 244TH ST2010-10-22

09:00Front

210.17

40< 1.3

135.1

< 5.5< 7.6

< 4.2< 3.6

< 5.5< 0.00022

< 0.11< 3.5

244351SVB351 244TH ST

2010-10-2210:50

Back20

0.7118

< 1.4< 9.6

< 3.8< 6.2

< 8.6< 4.8

< 4.1< 6.3

< 0.00026< 0.13

< 4244351SVH

351 244TH ST2010-10-22

11:24House

191.4

12< 1.2

< 8.2< 3.2

< 5.3< 7.4

< 4.1< 3.5

< 5.4< 0.00022

< 0.11< 3.4

244351SVHD351 244TH ST

2010-10-2211:24

House19

1.418

< 1.2< 8.2

< 3.2< 5.3

< 7.4< 4.1

< 3.5< 5.4

< 0.00022< 0.11

< 3.4244351 SVF

351 244TH ST2010-10-28

09:04Front

210.21

< 10< 1.2

< 8.1< 3.2

< 5.2< 7.3

< 4< 3.4

< 5.3< 0.00022

< 0.11< 3.3

244351 SVB351 244TH ST

2010-10-2809:43

Back21

0.5648

< 1.2< 8.1

6.7< 5.3

< 7.3< 4.1

< 3.4< 5.3

< 0.00022< 0.11

< 3.4244351 SVH

351 244TH ST2010-10-28

10:27House

191.5

14< 1.4

< 9< 3.5

< 5.8< 8.1

28< 3.8

< 5.9< 0.00024

< 0.12< 3.7

244351SVH351 244TH ST

2013-04-1210:23

House20

1.8< 29

0.76 J, b< 9.1

< 14< 5.9

< 8.2< 4.6

< 3.9< 6

< 0.00024< 0.12

< 15244351SVF

351 244TH ST2013-04-12

10:55Front

210.51

< 29< 0.6

< 9.1< 14

< 5.9< 8.2

< 4.6< 3.9

< 6< 0.00024

< 0.12< 15

244351SVFD351 244TH ST

2013-04-1210:55

Front21

0.49< 29

0.75 J, b< 9.1

< 14< 5.9

< 8.2< 4.6

< 3.9< 6

< 0.00024< 0.12

< 15244351SVB

351 244TH ST2013-04-12

11:05Back

210.86

< 28< 0.59

< 9< 14

< 5.8< 8.1

< 4.5< 3.8

< 5.9< 0.00024

< 0.12< 15

249-352SVB352 249TH ST

2009-10-0309:19

Back17

3.828

2.9 J75

12< 5.6

< 7.8< 4.3

11< 5.7

< 0.0002318

249-352SVF352 249TH ST

2009-10-0310:11

Front16

4.928

< 2.243

1059

790< 4.5

< 3.8< 5.9

< 0.00024< 3.7

249352SVH352 249TH ST

2011-01-2009:55

House19

2.2< 11

< 1.3< 8.7

< 3.4< 5.6

< 7.8< 4.3

< 3.7< 5.7

< 0.00023< 0.12

< 3.6249352SVF

352 249TH ST2011-01-20

10:24Front

183.6

23< 1.3

< 8.8< 3.4

< 5.7< 7.9

19020

< 5.8< 0.00023

< 0.12< 3.6

249352SVFS352 249TH ST

2011-01-2010:24

Front18.7

3.94< 17

< 1.3< 17

< 17< 1.7

< 1.7< 1.7

< 1.72.1

< 0.16< 17

249352SVB352 249TH ST

2011-01-2011:09

Back20

2.119

< 1.416

< 3.5< 5.8

< 86.2

< 3.8< 5.9

< 0.00024< 0.12

< 3.7249352SVBS

352 249TH ST2011-01-20

11:09Back

20.81.97

27< 1.4

21< 17

< 1.7< 1.7

5.4< 1.7

2.3< 0.16

< 17249352SVF

352 249TH ST2011-02-10

15:05Front

183.4

< 111 J, b

< 8.4< 3.3

< 5.5< 7.6

< 4.2< 3.6

< 5.5< 0.00022

< 0.11< 3.5

249352SVH352 249TH ST

2011-02-1015:16

House18

2.214

0.9 J, b< 8.3

< 3.2< 5.4

< 7.5< 4.1

< 3.5< 5.4

< 0.00022< 0.11

< 3.4249352SVB

352 249TH ST2011-02-10

16:03Back

183.3

210.89 J, b

< 9.3< 3.6

< 6< 8.4

< 4.6< 3.9

< 6.1< 0.00025

< 0.12< 3.8

249353SVH353 249TH ST

2010-06-0810:30

House14

317

< 2.3< 8.7

< 3.4< 5.6

< 7.8< 4.3

< 3.7< 5.7

< 0.00023< 0.12

< 3.6249353SVB

353 249TH ST2010-06-08

11:12Back

180.52

36< 2.4

< 8.9< 3.5

< 5.8< 8

< 4.5< 3.8

< 5.9< 0.00024

< 0.126.2

249353SVBS353 249TH ST

2010-06-0811:12

Back21.4

0.535

< 1.3< 17

< 17< 1.7

< 1.7< 1.7

< 1.72.3

< 0.16< 17

249353SVF353 249TH ST

2010-06-0812:28

Front18

0.04532

< 2.3< 8.7

5.8< 5.6

< 7.8< 4.4

4< 5.7

< 0.00023< 0.12

< 3.6

Page 276: Table Proposed Cleanup Levels Groundwater · 10/21/2013  · Table 04 Summery of PrsllMnery Cost ES11motee for Soleening Feasibility Study Former Kest Property Carson, CA GeotFnlenGOneullanle

Table B-2Sub-Slab Soil Vapor Results

Former Kast Property

Carson, California

Residential Properties Sampled Through August 31, 2013

Page 44 of 235

Oxygen

Oxygen/Argon

Carbon Dioxide

AcetoneN

aphthaleneEthanol

2-Butanone (M

ethyl Ethyl Ketone)

ChloroformTetrachloro-

etheneToluene

BenzeneFreon 12

Methane

HeliumCarbon

DisulfideM

OL %

MO

L %M

OL %

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

MO

L %M

OL %

UG

/M3

100.00%100.00%

92.56%52.63%

49.98%18.72%

17.61%16.54%

8.00%7.84%

7.80%6.94%

6.17%5.34%

4.80%Sam

ple IDAddress

Sample D

ateSam

ple Time

Location

AnalyteU

nitsFrequency of D

etection

249353SVB353 249TH ST

2011-02-0411:56

Back20

0.66< 11

0.43 J, b< 8.4

< 3.3< 5.5

< 7.66.1

< 3.6< 5.5

< 0.00022< 0.11

< 3.5249353SVF

353 249TH ST2011-02-04

13:12Front

210.13

12< 0.34

< 8.8< 3.4

< 5.7< 7.9

< 4.4< 3.7

< 5.8< 0.00023

< 0.12< 3.6

249353SVB353 249TH ST

2013-07-1009:49

Back21

0.78< 30

1.3 J, b< 9.4

< 15< 6.1

< 8.5< 4.7

< 4< 6.2

< 0.00025< 0.12

< 16249353SVBD

353 249TH ST2013-07-10

09:49Back

210.77

< 30< 0.84

< 9.4< 15

< 6.1< 8.4

< 4.7< 4

< 6.2< 0.00025

< 0.12< 16

249353SVH353 249TH ST

2013-07-1010:02

House18

3.132

< 0.82< 9.2

< 14< 6

< 8.3< 4.6

< 3.9< 6

< 0.00024< 0.12

< 15249353SVF

353 249TH ST2013-07-10

10:23Front

210.3

110< 0.8

< 8.944

< 5.8< 8

32< 3.8

< 5.8< 0.00024

< 0.12< 15

248354SVH354 248TH ST

2010-09-1609:16

House13

2.751

< 1.320

5.1< 5.6

< 7.8< 4.3

< 3.6< 5.7

0.00025< 0.11

< 3.6248354SVG

354 248TH ST2010-09-16

09:57G

arage9.5

6.632

< 1.3< 8.8

6.2< 5.7

< 7.9< 4.4

< 3.7< 5.8

0.0084< 0.12

< 3.6248354SVB

354 248TH ST2010-09-16

10:34Back

113.6

193 J, b

< 9< 3.5

9.8< 8.1

5.5< 3.8

< 5.9< 0.00024

< 0.12< 3.7

248354SVBD354 248TH ST

2010-09-1610:34

Back11

3.626

1.4 J, b< 9.1

< 3.69.6

< 8.2< 4.6

< 3.9< 6

< 0.00024< 0.12

< 3.8248354SVHA

354 248TH ST2012-06-14

09:59House

126.2

< 191.2 J, b

< 6< 9.3

< 3.8< 5.4

< 3< 2.5

< 3.90.00021

< 0.079< 9.8

248354SVBA354 248TH ST

2012-06-1513:05

Back22

< 0.015110

0.99 J, b< 5.7

1710

< 5.118

6.4< 3.7

0.00016< 0.076

< 9.4244357SVH

357 244TH ST2010-06-07

09:36House

170.45

45< 5.9

< 22< 8.8

< 14< 20

< 11< 9.5

< 15< 0.00024

< 0.12< 9.2

244357SVF357 244TH ST

2010-06-0710:30

Front18

< 0.02336

< 2.330

8< 5.7

< 7.97.6

< 3.7< 5.8

< 0.00023< 0.12

< 3.6244357SVB2

357 244TH ST2010-09-02

13:14Back

21< 0.023

244 J, b

< 8.63.6

< 5.6< 7.7

< 4.3< 3.6

< 5.6< 0.00023

< 0.118.4 j

244357SVB2D357 244TH ST

2010-09-0213:14

Back21

< 0.0321

3.4 J, b< 8.6

4.9< 5.6

< 7.7< 4.3

5.2< 5.6

< 0.0003< 0.15

< 3.6244357SVH

357 244TH ST2012-11-30

10:10House

201.5

< 295.6 J, b

< 9.1< 14

< 5.9< 8.2

< 4.6< 3.9

< 6< 0.00024

< 0.12< 15

244357SVF357 244TH ST

2012-11-3010:46

Front21

0.14< 28

2.8 J, b< 9

< 14< 5.8

< 8.1< 4.5

< 3.8< 5.9

< 0.00024< 0.12

< 15244357SVB2

357 244TH ST2012-11-30

11:07Back

202.8

462.8 J, b

< 915 b

< 5.8< 8.1

< 4.5< 3.8

< 5.9< 0.0004

< 0.2< 15

244357SVB2357 244TH ST

2013-06-2115:28

Back20

1.6< 29

< 0.83< 9.3

< 14< 6

< 8.4< 4.6

< 3.9< 6.1

< 0.00025< 0.12

< 15244357SVH

357 244TH ST2013-06-21

15:28House

191.4

36< 0.79

< 8.8< 14

< 5.7< 8

< 4.4< 3.8

< 5.8< 0.00024

< 0.12< 15

244357SVF357 244TH ST

2013-06-2115:46

Front21

0.1742

< 0.82< 9.1

< 14< 5.9

< 8.2< 4.6

< 3.9< 6

0.032< 0.12

< 15249357SVH

357 249TH ST2010-05-28

13:21House

191.3

20< 3.9

< 8.4< 3.3

< 5.5< 7.6

< 4.2< 3.6

< 5.5< 0.00022

< 0.11< 3.5

249357SVF357 249TH ST

2010-05-2813:59

Front19

246

< 4.2< 9.1

< 3.69.7

< 8.2< 4.6

37< 6

< 0.00024< 0.12

< 3.8249357SVFD

357 249TH ST2010-05-28

13:59Front

192

18< 4.2

< 9.1< 3.6

9.9< 8.2

< 4.620

< 6< 0.00024

< 0.12< 3.8

249 357 SVB357 249TH ST

2010-09-0309:09

Back20

0.2136

< 1.4< 9

3.9< 5.8

< 8.1< 4.5

< 3.8< 5.9

< 0.00024< 0.12

< 3.7249 357 SVF

357 249TH ST2010-09-03

09:56Front

192

17< 1.4

13< 3.4

25< 7.9

< 4.4< 3.7

< 5.8< 0.00023

< 0.12< 3.6

249 357 SVFD357 249TH ST

2010-09-0309:56

Front19

1.922

< 1.420

4.526

< 8.19.2

< 3.8< 5.9

< 0.00024< 0.12

25249357SVH

357 249TH ST2012-08-03

14:40House

182.1

32< 3

< 6.1< 9.5

< 3.9< 5.5

3.5< 2.6

< 4< 0.00016

< 0.08< 10

249357SVF357 249TH ST

2012-08-0315:15

Front18

3.4< 18

< 2.9< 5.8

< 9.147

< 5.2< 2.9

< 2.5< 3.8

< 0.00016< 0.078

< 9.6249357SVH

357 249TH ST2013-06-14

18:44House

191

< 28< 2.5

< 8.7 PF< 14

< 5.7< 7.9

< 4.4< 3.7

< 5.7< 0.00023

< 0.12< 14

249357SVB3357 249TH ST

2013-06-1418:53

Back21

< 0.03110

< 2.6< 8.8 PF

< 14< 5.7

< 8< 4.4

< 3.8< 5.8

< 0.0003< 0.15

< 15249357SVF

357 249TH ST2013-06-14

19:13Front

201.6

< 27< 2.5

< 8.7 PF< 14

9.6< 7.8

< 4.4< 3.7

< 5.7< 0.00023

< 0.12< 14

249357SVB2357 249TH ST

2013-06-1419:27

Back17

2.337

< 2.4< 8.2 PF

< 13< 5.3

< 7.4< 4.1

< 3.5< 5.4

0.00029< 0.11

< 14249 358 SVH

358 249TH ST2011-09-16

08:41House

1010

15 b1.6 J, b

< 9< 14

< 5.8< 8.1

< 4.5< 3.8

< 5.9< 0.00024

< 0.12< 15

249 358 SVG358 249TH ST

2011-09-1609:12

Garage

4.319

14 b1.1 J, b

< 8.8< 14

< 5.7< 8

< 4.4< 3.8

< 5.8< 0.00024

< 0.12< 15

249 358 SVGD

358 249TH ST2011-09-16

09:12G

arage4.1

2018 b

1 J, b< 8.8

< 14< 5.7

< 8< 4.4

< 3.8< 5.8

< 0.00048< 0.24

< 15249 358 SVB

358 249TH ST2011-09-16

09:47Back

174.7

34 b0.62 J, b

< 8.8< 14

< 5.7< 7.9

< 4.4< 3.7

< 5.8< 0.00023

< 0.12< 14

249358SVG358 249TH ST

2012-03-0910:35

Garage

9.212

< 174.4 J, b

< 5.5< 8.6

< 3.6< 5

< 2.8< 2.3

< 3.6< 0.00019

0.13< 9.1

249358SVH358 249TH ST

2012-03-0910:42

House14

6.4< 19

3.7 J, b< 6

< 9.3< 3.8

< 5.45

< 2.5< 3.9

< 0.0002< 0.1

< 9.8249358SVB

358 249TH ST2012-03-09

11:25Back

192.8

< 192.2 J, b

< 6< 9.3

< 3.8< 5.4

< 3< 2.5

< 3.9< 0.00021

< 0.11< 9.8

249358SVBD358 249TH ST

2012-03-0911:25

Back19

2.8< 19

1.9 J, b< 6

< 9.3< 3.8

< 5.4< 3

< 2.5< 3.9

< 0.00021< 0.1

< 9.8249358SVH

358 249TH ST2013-08-29

14:55House

147.2

< 291 J, b

< 9.1< 14

< 5.9< 8.2

< 4.5< 3.8

< 6< 0.00024

< 0.12< 15

249358SVB358 249TH ST

2013-08-2914:56

Back19

2.142

1 J, b< 9

< 14< 5.8

< 8.1< 4.5

< 3.8< 5.9

< 0.00024< 0.12

< 15249358SVG

358 249TH ST2013-08-29

15:24G

arage4.5

16< 29

< 0.81< 9.1

< 14< 5.9

< 8.2< 4.5

< 3.8< 6

< 0.00024< 0.12

< 15248360SVH

360 248TH ST2011-01-13

09:31House

182.2

< 11< 1.3 J

< 8.4< 3.3

< 5.5< 7.6

< 4.237

< 5.50.16

< 0.11< 3.5

248360 SVBS360 248TH ST

2011-01-1311:21

Back20.9

0.19572

< 1.4< 18

< 183

< 1.8< 1.8

< 1.82.6

< 0.16< 18

248360SVB360 248TH ST

2011-01-1311:21

Back20

0.1966

< 1.4 J< 8.9

9.8< 5.8

< 8< 4.5

< 3.8< 5.9

< 0.00024< 0.12

< 3.7248360SVG

360 248TH ST2012-07-06

14:44G

arage20

2< 19

< 3< 6.1

< 9.5< 3.9

< 5.5< 3

< 2.6< 4

0.024< 0.08

< 10248360SVG

D360 248TH ST

2012-07-0614:44

Garage

202

< 19< 3

< 6.1< 9.5

< 3.9< 5.5

< 3< 2.6

< 40.024

< 0.08< 10

248360SVH360 248TH ST

2012-07-0615:08

House19

2.4< 22

< 3.6< 7.2

< 11< 4.6

< 6.4< 3.6

< 3< 4.7

0.0022< 0.078

< 12248360SVBA

360 248TH ST2012-07-13

13:01Back

170.27

110< 3

1100 E16

< 3.9< 5.5

< 3< 2.6

< 4< 0.00016

< 0.08< 10

Page 277: Table Proposed Cleanup Levels Groundwater · 10/21/2013  · Table 04 Summery of PrsllMnery Cost ES11motee for Soleening Feasibility Study Former Kest Property Carson, CA GeotFnlenGOneullanle

Table B-2Sub-Slab Soil Vapor Results

Former Kast Property

Carson, California

Residential Properties Sampled Through August 31, 2013

Page 45 of 235

Oxygen

Oxygen/Argon

Carbon Dioxide

AcetoneN

aphthaleneEthanol

2-Butanone (M

ethyl Ethyl Ketone)

ChloroformTetrachloro-

etheneToluene

BenzeneFreon 12

Methane

HeliumCarbon

DisulfideM

OL %

MO

L %M

OL %

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

MO

L %M

OL %

UG

/M3

100.00%100.00%

92.56%52.63%

49.98%18.72%

17.61%16.54%

8.00%7.84%

7.80%6.94%

6.17%5.34%

4.80%Sam

ple IDAddress

Sample D

ateSam

ple Time

Location

AnalyteU

nitsFrequency of D

etection

244-361SVF361 244TH ST

2009-09-2212:12

Front20

0.69< 11

< 2.9< 8.7

< 3.4< 5.6

< 7.8< 4.3

< 3.7< 5.7

0.000674.4

244-361SVH361 244TH ST

2010-07-0209:16

House21

0.2252

< 2.3 Q< 8.8

6.1< 5.7

< 7.9< 4.4

< 3.7< 5.8

< 0.00062< 0.31

< 3.6244-361SVG

361 244TH ST2010-07-02

10:04Front

200.81

42< 2.3 Q

< 8.84.5

< 5.7< 8

< 4.4< 3.8

< 5.8< 0.00046

< 0.23< 3.6

244 361 SVBA361 244TH ST

2010-07-0212:10

Back4.9

8.5< 110

< 5.3< 88

< 35< 57

< 80< 44

< 38< 58

160.19

< 36244361SVB2

361 244TH ST2010-08-06

13:01Back

2.38.4

< 11000< 620

< 8800< 3400

< 5700< 7900

< 4400< 3700

< 580023

< 0.12< 3600

244361SVH361 244TH ST

2010-11-1215:18

House19

1.611

1.8 J, b< 8.6

< 3.4< 5.6

< 7.7< 4.3

< 3.6< 5.6

< 0.00023< 0.11

< 3.6244361SVB2

361 244TH ST2010-11-12

15:39Back

192.2

12< 0.33

< 8.7< 3.4

< 5.6< 7.8

< 4.3< 3.7

< 5.7< 0.00023

< 0.12< 3.6

244361SVF361 244TH ST

2010-11-1215:49

Front20

0.77< 11

< 0.34< 8.9

< 3.5< 5.8

< 8< 4.5

< 3.8< 5.9

< 0.00024< 0.12

8244361SVBA

361 244TH ST2013-08-14

09:55Back

182.8

< 281.3 J, b

< 9< 14

< 5.8< 8.1

< 4.5< 3.8

< 5.9< 0.00024

< 0.12< 15

244361SVBAS361 244TH ST

2013-08-1409:55

Back18.8

2.91< 21 U

< 0.74 U< 21 U

< 21 U< 2.1 U

< 2.1 U< 2.1 U

< 2.1 U2.5

< 0.16 U< 21 U

244361SVH361 244TH ST

2013-08-1410:00

House18

1.938

2 J, b< 8.7

< 14< 5.7

< 7.9< 4.4

< 3.7< 5.7

< 0.00023< 0.12

< 14249362SVH

362 249TH ST2010-05-17

09:52House

155.4

35< 6.4

< 9.16.5

< 5.9< 8.2

< 4.6< 3.9

< 6< 0.00024

< 0.12< 3.8

249362SVG362 249TH ST

2010-05-1710:47

Garage

113.2

25< 5.6

< 8< 3.1

< 5.2130

< 43.7

< 5.2< 0.00021

< 0.11< 3.3

249362SVB362 249TH ST

2010-05-1711:48

Back21

0.7423

< 5.48.5

4.4< 5

< 6.9< 3.8

6.6< 5

< 0.0002< 0.1

< 3.2249362SVBD

362 249TH ST2010-05-17

11:48Back

210.22

11< 5.3

< 7.6< 3

< 4.9< 6.8

< 3.83.9

< 5< 0.0002

< 0.1< 3.1

249362SVB362 249TH ST

2010-08-2509:41

Back18

2.716

< 1.3< 8.8

< 3.4< 5.7

< 7.9< 4.4

< 3.7< 5.8

< 0.00023< 0.12

< 3.6249362SVB

362 249TH ST2013-02-28

10:11Back

201.4

< 291.9 J, b

< 9.3< 14

< 6< 8.4

< 4.6< 3.9

< 6.1< 0.00025

< 0.12< 15

249362SVBS362 249TH ST

2013-02-2810:11

Back20.5

1.4172

< 0.88 U< 21 U

< 21 U< 2.1 U

< 2.1 U< 2.1 U

< 2.1 U< 2.1 U

< 0.17 U< 21 U

249362SVH362 249TH ST

2013-02-2810:30

House19

2.2< 27

1.3 J, b< 8.4

< 13< 5.5

< 7.6< 4.2

< 3.6< 5.5

< 0.00022< 0.11

< 14249362SVG

362 249TH ST2013-02-28

10:42G

arage5.7

6< 29

1.3 J, b< 9.3

< 14< 6

< 8.4< 4.6

< 3.9< 6.1

0.069< 0.12

< 15249362SVG

S362 249TH ST

2013-02-2810:42

Garage

6.076.2

27< 0.89 U

< 21 U< 21 U

< 2.1 U< 2.1 U

< 2.1 U< 2.1 U

< 2.1 U< 0.17 U

< 21 U249363SVB

363 249TH ST2010-10-26

13:45Back

21< 0.023

16< 1.3

< 8.6< 3.4

6.7< 7.8

< 4.3< 3.6

< 5.7< 0.00023

< 0.11< 3.6

249363SVF363 249TH ST

2010-10-2614:31

Front16

3.411

< 1.4< 9.1

< 3.618

< 8.2< 4.6

< 3.9< 6

0.00073< 0.12

< 3.8249363SVH

363 249TH ST2010-10-26

15:02House

182

14< 1.3

< 8.8< 3.4

< 5.7< 7.9

< 4.4< 3.7

< 5.8< 0.00023

< 0.12< 3.6

249363SVHA363 249TH ST

2013-07-2609:46

House18

1.6180

< 0.73380

< 13< 5.3

< 7.323

< 3.4< 5.3

< 0.00022< 0.11

< 13249363SVB

363 249TH ST2013-07-26

09:56Back

210.24

< 28< 0.8

< 9< 14

39< 8.1

< 4.5< 3.8

< 5.9< 0.00024

< 0.12< 15

249363SVF363 249TH ST

2013-07-2610:16

Front18

2.6< 28

< 0.8< 9

< 1418

< 8.1< 4.5

< 3.8< 5.9

< 0.00024< 0.12

< 15248364SVH

364 248TH ST2010-09-16

09:12House

142

87< 1.4

1514

< 5.8< 8.1

< 4.5< 3.8

< 5.9< 0.00024

< 0.12< 3.7

248364SVG364 248TH ST

2010-09-1609:53

Garage

160.09

22< 1.3

9< 3.4

< 5.6< 7.8

4.3< 3.6

< 5.70.00045

< 0.11< 3.6

248364 SVBS364 248TH ST

2010-09-1610:28

Back21.5

< 0.1641

< 1.3< 17

< 17< 1.7

< 1.7< 1.7

< 1.72.5

< 0.16< 17

248364SVB364 248TH ST

2010-09-1610:28

Back18

0.07127

2.8 J, b< 8.6

< 3.4< 5.6

< 7.8< 4.3

< 3.6< 5.7

0.0003< 0.11

< 3.6248364SVH

364 248TH ST2013-04-04

09:56House

192.5

< 270.73 J, b

< 8.6< 13

< 5.5< 7.7

< 4.332

< 5.60.00078

< 0.11< 14

248364SVG364 248TH ST

2013-04-0410:22

Garage

201.4

< 26< 0.54 PF

< 8.2< 13

< 5.3< 7.4

< 4.1< 3.5

< 5.4< 0.00022

< 0.11< 14

248364SVGD

364 248TH ST2013-04-04

10:22G

arage20

1.435

< 0.54 PF8.8

< 13< 5.4

< 7.5< 4.2

< 3.5< 5.5

< 0.00022< 0.11

< 14248364SVB

364 248TH ST2013-04-04

10:38Back

220.078

< 270.57 J, b

< 8.6< 13

< 5.5< 7.7

< 4.3< 3.6

< 5.6< 0.00023

< 0.11< 14

249367SVH367 249TH ST

2010-06-1509:39

House19

0.72< 11

< 2.3< 8.7

< 3.4< 5.6

< 7.8< 4.3

< 3.7< 5.7

< 0.00023< 0.12

< 3.6249367SVB

367 249TH ST2010-06-15

11:27Back

200.48

< 12< 2.5

< 9.3< 3.6

< 6< 8.4

< 4.7< 4

< 6.1< 0.00025

< 0.12< 3.9

249367SVF367 249TH ST

2010-06-1511:38

Front19

0.7358 b

< 2.419

1816

< 8.2< 4.6

4.6< 6

< 0.00024< 0.12

< 3.8249 367 SVH

367 249TH ST2010-07-29

13:29House

190.76

21< 6.4

< 9.15.1

< 5.9< 8.2

4.7< 3.9

< 6< 0.00024

< 0.12< 3.8

249 367 SVB367 249TH ST

2010-07-2914:52

Back21

0.2528

< 6.29.6

4.4< 5.7

< 7.9< 4.4

< 3.7< 5.8

< 0.00023< 0.12

< 3.6249 367 SVF

367 249TH ST2010-07-29

15:31Front

191.2

< 11< 6.3

9.2< 3.5

13< 8.1

< 4.5< 3.8

< 5.9< 0.00024

< 0.12< 3.7

249367SVH367 249TH ST

2012-10-2515:23

House18

0.69< 28

6.4 J, b< 9

< 14< 5.8

< 8.1< 4.5

< 3.8< 5.9

< 0.00032< 0.16

< 15249367SVF

367 249TH ST2012-10-25

15:27Front

181.2

492.6 J, b

< 9.3< 14

37< 8.3

< 4.6< 3.9

< 6.1< 0.00025

< 0.12< 15

249367SVB367 249TH ST

2012-10-2516:13

Back26

0.19< 25

1.8 J, b14

< 12< 5.1

< 7.16.2

< 3.3< 5.2

< 0.00029< 0.14

< 13249367SVB

367 249TH ST2013-05-02

14:54Back

210.27

< 266.9 J, b

< 8.4< 13

< 5.4< 7.6

< 4.2< 3.6

< 5.5< 0.00022

< 0.11< 14

249367SVH367 249TH ST

2013-05-0214:57

House20

0.7378

1.3 J, b12

25< 5.7

< 7.9< 4.4

< 3.7< 5.8

< 0.00023< 0.12

< 14249367SVF

367 249TH ST2013-05-02

15:28Front

201.5

321 J, b

< 9.3< 14

17< 8.3

< 4.6< 3.9

< 6.1< 0.00025

< 0.12< 15

249368SVH368 249TH ST

2010-12-0109:39

House17

4.613

1.4 J, b< 8.8

< 3.5< 5.7

< 8< 4.4

< 3.8< 5.8

< 0.00024< 0.12

< 3.6249368SVG

368 249TH ST2010-12-01

10:27G

arage16

4.8< 11

0.92 J, b< 9.1

< 3.6< 5.9

28< 4.6

< 3.9< 6

< 0.00024< 0.12

< 3.8249368SVG

S368 249TH ST

2010-12-0110:27

Garage

16.75.31

< 18< 1.4

< 18< 18

< 1.835

< 1.8< 1.8

1.8< 0.16

< 18249368SVB

368 249TH ST2010-12-01

11:06Back

182.6

120.73 J, b

< 9.3< 3.6

< 6< 8.3

< 4.6< 3.9

< 6.1< 0.00025

< 0.12< 3.8

249368SVBD368 249TH ST

2010-12-0111:06

Back18

2.614

0.71 J, b< 9.3

< 3.6< 6

< 8.3< 4.6

< 3.9< 6.1

< 0.00025< 0.12

< 3.8

Page 278: Table Proposed Cleanup Levels Groundwater · 10/21/2013  · Table 04 Summery of PrsllMnery Cost ES11motee for Soleening Feasibility Study Former Kest Property Carson, CA GeotFnlenGOneullanle

Table B-2Sub-Slab Soil Vapor Results

Former Kast Property

Carson, California

Residential Properties Sampled Through August 31, 2013

Page 46 of 235

Oxygen

Oxygen/Argon

Carbon Dioxide

AcetoneN

aphthaleneEthanol

2-Butanone (M

ethyl Ethyl Ketone)

ChloroformTetrachloro-

etheneToluene

BenzeneFreon 12

Methane

HeliumCarbon

DisulfideM

OL %

MO

L %M

OL %

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

MO

L %M

OL %

UG

/M3

100.00%100.00%

92.56%52.63%

49.98%18.72%

17.61%16.54%

8.00%7.84%

7.80%6.94%

6.17%5.34%

4.80%Sam

ple IDAddress

Sample D

ateSam

ple Time

Location

AnalyteU

nitsFrequency of D

etection

249368SVHA368 249TH ST

2012-08-0915:07

House19

0.4458

< 327

< 9.5< 3.9

< 5.55

< 2.6< 4

< 0.00016< 0.08

< 10249368SVG

A368 249TH ST

2012-08-0915:26

Garage

161.8

74< 3

6.5< 9.5

< 3.945

< 3< 2.6

< 4< 0.00016

< 0.08< 10

249368SVGA

368 249TH ST2013-05-21

14:51G

arage16

5.635

4.2 J, b< 9.3

< 1510

41< 4.7

< 4< 6.1

< 0.00025< 0.12

< 15249368SVHA

368 249TH ST2013-05-21

15:06House

202.1

< 29< 2.6

< 9.1< 14

< 5.9< 8.2

< 4.6< 3.9

< 6< 0.00024

< 0.12< 15

249373SVH373 249TH ST

2010-10-2609:47

House20

1.512

< 1.310

< 3.4< 5.7

< 7.9< 4.4

< 3.7< 5.8

< 0.00023< 0.12

< 3.6249373SVB

373 249TH ST2010-10-26

10:28Back

155.4

33< 1.2

< 8.1< 3.2

< 5.3< 7.3

< 4.1< 3.4

< 5.30.0028

< 0.11< 3.4

249373SVF373 249TH ST

2010-10-2611:03

Front20

0.07216

1.6 J, b< 8.1

< 3.2< 5.3

< 7.3< 4.1

< 3.4< 5.3

< 0.00022< 0.11

< 3.4249373SVH

373 249TH ST2012-04-12

10:02House

201

< 180.81 J, b

< 5.8< 9.1

< 3.8< 5.2

< 2.9< 2.5

< 3.80.00035

< 0.12< 9.6

249373SVB373 249TH ST

2012-04-1210:17

Back19

1.4< 18

0.66 J, b< 5.6

< 8.8< 3.6

< 5< 2.8

< 2.4< 3.7

0.0003< 0.12

< 9.3249373SVBD

373 249TH ST2012-04-12

10:17Back

191.4

< 180.66 J, b

15< 8.8

< 3.6< 5

< 2.8< 2.4

< 3.70.00024

< 0.12< 9.3

249373SVF373 249TH ST

2012-04-1210:46

Front20

1.123

0.54 J, b< 5.7

< 9< 3.7

< 5.24.4

< 2.4< 3.8

0.00029< 0.12

< 9.5248374SVH

374 248TH ST2010-11-05

13:34House

162.4

273.1 J, b

< 8.8< 3.4

< 5.7< 7.9

< 4.4< 3.7

< 5.8< 0.00023

< 0.12< 3.6

248374SVHD374 248TH ST

2010-11-0513:34

House16

2.519

2 J, b< 8.8

< 3.4< 5.7

< 7.9< 4.4

< 3.7< 5.8

< 0.00023< 0.12

< 3.6248374SVB

374 248TH ST2010-11-05

14:14Back

134.1

122.1 J, b

< 9.1< 3.6

51< 8.2

< 4.6< 3.9

< 6< 0.00024

< 0.12< 3.8

248 374 SVF374 248TH ST

2011-02-0309:18

Front21

< 0.02341

3.4 J, b< 8.7

4.1< 5.6

< 7.8< 4.3

< 3.7< 5.7

< 0.00023< 0.12

< 3.6248374SVH

374 248TH ST2011-09-14

10:00House

144.4

131.8 J, b

< 8.8< 14

< 5.7< 7.9

< 4.4< 3.7

< 5.8< 0.00023

< 0.12< 14

248374SVF374 248TH ST

2011-09-1410:34

Front20

0.9645

13 J, b10

< 14< 5.6

< 7.8< 4.3

4.7< 5.7

< 0.00023< 0.11

< 14248374SVB

374 248TH ST2011-09-14

11:04Back

127

131.6 J, b

< 9< 14

35< 8.1

< 4.5< 3.8

< 5.9< 0.00024

< 0.12< 15

248374SVB374 248TH ST

2012-10-0514:46

Back15

4.6< 27

4 J, b< 8.6

< 1454

< 7.8< 4.3

< 3.6< 5.7

< 0.00023< 0.11

< 14248374SVBD

374 248TH ST2012-10-05

14:46Back

154.6

293.4 J, b

< 8.6< 14

55< 7.8

< 4.3< 3.6

< 5.7< 0.00023

< 0.11< 14

248374SVH374 248TH ST

2012-10-0514:52

House14

4.3< 28

0.63 J, b< 9

< 14< 5.8

< 8.1< 4.5

< 3.8< 5.9

< 0.00024< 0.12

< 15248374SVF

374 248TH ST2012-10-05

15:25Front

200.78

42< 0.61

10< 14

< 6< 8.4

< 4.6< 3.9

< 6.1< 0.00025

< 0.12< 15

248374SVB374 248TH ST

2013-04-0910:09

Back17

4.2< 28

< 0.59< 9

< 1422

< 8.1< 4.5

< 3.8< 5.9

< 0.00024< 0.12

< 15248374SVBD

374 248TH ST2013-04-09

10:09Back

174.2

< 29< 0.6

< 9.2< 14

21< 8.2

< 4.6< 3.9

< 6< 0.00024

< 0.12< 15

248374SVH374 248TH ST

2013-04-0910:10

House18

3.1< 27

< 0.57< 8.7

< 14< 5.6

< 7.8< 4.4

< 3.7< 5.7

< 0.00023< 0.12

< 14248374SVF

374 248TH ST2013-04-09

10:59Front

220.37

< 261.2 J, b

< 8.4< 13

< 5.4< 7.6

< 4.2< 3.6

< 5.5< 0.00022

< 0.11< 14

244377SVH377 244TH ST

2010-08-1113:13

House18

1.829

< 6.310

4.2< 5.8

< 8.1< 4.5

< 3.8< 5.9

< 0.00024< 0.12

< 3.7244377SVF

377 244TH ST2010-08-11

14:14Front

200.17

38< 6.2

217.4

< 5.7< 7.9

< 4.49.9

< 5.8< 0.00023

< 0.124.9

244377SVB377 244TH ST

2010-08-1114:58

Back19

0.03127

< 6.2< 8.8

3.5< 5.7

< 7.9< 4.4

< 3.7< 5.8

< 0.00023< 0.12

< 3.6244377SVF

377 244TH ST2012-06-28

15:30Front

180.63

< 22< 3.5

< 7< 11

< 4.5< 6.3

< 3.5< 3

< 4.6< 0.00016

< 0.082< 12

244377SVFD377 244TH ST

2012-06-2815:30

Front21

0.73< 20

< 3.1< 6.2

< 9.7< 4

< 5.6< 3.1

< 2.6< 4.1

< 0.00016< 0.082

< 10244377SVH

377 244TH ST2012-06-28

15:52House

182.9

< 18< 2.9

< 5.8< 9.1

< 3.8< 5.2

< 2.9< 2.5

< 3.8< 0.00019

< 0.097< 9.6

244377SVB377 244TH ST

2012-06-2816:04

Back20

1.2< 19

< 2.9< 5.9

< 9.2< 3.8

< 5.3< 3

< 2.5< 3.9

< 0.00016< 0.078

< 9.8249377SVH

377 249TH ST2010-10-19

09:29House

190.13

3912 J, b

< 9.37.2

< 6< 8.3

< 4.6< 3.9

< 6.1< 0.00025

< 0.12< 3.8

249377SVF377 249TH ST

2010-10-1910:02

Front20

0.041110

< 1.3< 8.4

16< 5.5

< 7.6< 4.2

< 3.6< 5.5

< 0.00022< 0.11

< 3.5249377SVB

377 249TH ST2010-10-19

10:51Back

190.26

19< 1.4

< 9< 3.5

< 5.8< 8.1

< 4.5< 3.8

< 5.9< 0.00024

< 0.12< 3.7

249377SVH377 249TH ST

2012-08-2410:03

House20

0.37< 29

0.73 J, b< 9.1

< 1439

< 8.2< 4.6

< 3.9< 6

< 0.00024< 0.12

< 15249377SVF

377 249TH ST2012-08-24

10:04Front

200.22

30< 0.5

< 9.5< 15

38< 8.5

< 4.7< 4

< 6.2< 0.00025

< 0.13< 16

249377SVFD377 249TH ST

2012-08-2410:04

Front20

0.23< 30

< 0.5< 9.5

< 1541

< 8.5< 4.7

< 4< 6.2

< 0.00025< 0.13

< 16249377SVB

377 249TH ST2012-08-24

10:41Back

201.4

< 280.59 J, b

11< 14

130< 7.9

< 4.4< 3.7

< 5.8< 0.00023

< 0.12< 14

249377SVH377 249TH ST

2013-05-1509:51

House21

0.33< 29

0.81 J, b< 9.2

< 14150

< 8.2< 4.6

< 3.9< 6

< 0.00024< 0.12

< 15249377SVF

377 249TH ST2013-05-15

09:55Front

220.087

68< 0.58

< 8.8< 14

9.7< 7.9

< 4.4< 3.7

< 5.8< 0.00023

< 0.12< 14

249377SVFD377 249TH ST

2013-05-1509:55

Front22

0.082< 30

< 0.63< 9.6

< 159.5

< 8.6< 4.8

< 4< 6.3

< 0.00025< 0.13

< 16249377SVB

377 249TH ST2013-05-15

10:24Back

210.62

< 28< 0.59

< 9< 14

90< 8.1

< 4.5< 3.8

< 5.9< 0.00024

< 0.12< 15

249378SVBA378 249TH ST

2011-01-1709:28

Back16

3.721

< 1.4< 9.1

< 3.6< 5.9

< 8.2< 4.6

< 3.9< 6

< 0.00024< 0.12

< 3.8249378SVG

C378 249TH ST

2011-01-1710:15

Garage

1.212

< 230< 28

< 180< 71

< 120< 160

< 91910

< 12017

< 0.12< 75

249378SVGCD

378 249TH ST2011-01-17

10:15G

arage1.4

12< 230

< 28< 180

< 71< 120

< 160< 91

920< 120

17< 0.12

< 75249378SVH

378 249TH ST2011-01-17

11:07House

182.9

20< 1.3

< 8.8< 3.4

< 5.7< 7.9

208.2

< 5.80.0023

< 0.12< 3.6

249378SVBA378 249TH ST

2011-05-1215:30

Back17

5.213

< 0.32 U,J

< 8.5< 13

< 5.5< 7.7

< 4.2< 3.6

< 5.6< 0.00023

< 0.11< 14

249378SVBAS378 249TH ST

2011-05-1215:30

Back18.1

5.83< 17

< 0.96< 17

< 174

< 1.7< 1.7

< 1.72.1

< 0.15< 17

249378SVH378 249TH ST

2011-05-1215:42

House18

3.412

< 0.34 U,J

< 9< 14

< 5.8< 8.1

< 4.5< 3.8

< 5.9< 0.00024

< 0.12< 15

249378SVGC

378 249TH ST2011-05-12

16:47G

arage1.3

17< 220

< 6.8< 180

< 280< 120

< 160< 89

1200< 120

16< 0.12

< 300

Page 279: Table Proposed Cleanup Levels Groundwater · 10/21/2013  · Table 04 Summery of PrsllMnery Cost ES11motee for Soleening Feasibility Study Former Kest Property Carson, CA GeotFnlenGOneullanle

Table B-2Sub-Slab Soil Vapor Results

Former Kast Property

Carson, California

Residential Properties Sampled Through August 31, 2013

Page 47 of 235

Oxygen

Oxygen/Argon

Carbon Dioxide

AcetoneN

aphthaleneEthanol

2-Butanone (M

ethyl Ethyl Ketone)

ChloroformTetrachloro-

etheneToluene

BenzeneFreon 12

Methane

HeliumCarbon

DisulfideM

OL %

MO

L %M

OL %

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

MO

L %M

OL %

UG

/M3

100.00%100.00%

92.56%52.63%

49.98%18.72%

17.61%16.54%

8.00%7.84%

7.80%6.94%

6.17%5.34%

4.80%Sam

ple IDAddress

Sample D

ateSam

ple Time

Location

AnalyteU

nitsFrequency of D

etection

249378SVGCS

378 249TH ST2011-05-12

16:47G

arage0.877

18.5< 1700

< 96< 1700

< 1700< 170

< 170< 170

820< 170

17.8< 1700

249 378SVGC

378 249TH ST2012-02-24

14:54G

arage1.3

15< 350

< 5.4< 110

< 180< 73

< 100< 56

800< 74

16< 0.074

< 180249378SVH

378 249TH ST2012-02-24

15:04House

174.1

< 174.6 J

< 5.5< 8.6

< 3.6< 5

< 2.8< 2.3

< 3.6< 0.00015

< 0.073< 9.1

249378SVBA378 249TH ST

2012-02-2416:32

Back18

4.2< 530

9.8 J< 170

< 260< 110

< 150150

< 72< 110

0.0025< 0.079

< 280249378SVBAD

378 249TH ST2012-02-24

16:32Back

174.2

< 94015 J

< 300< 460

< 190< 270

< 150< 130

< 2000.0024

< 0.079< 490

249378SVBA378 249TH ST

2012-03-2309:10

Back17

3.7< 390

8.7 J, b< 120

< 190< 80

< 110< 61

< 52< 81

0.0036< 0.13

< 200249378SVBAS

378 249TH ST2012-03-23

09:10Back

17.43.75

< 460 U< 27 U

< 460 U< 460 U

< 46 U< 46 U

< 46 U< 46 U

< 46 U< 0.16 U

< 460 U249378SVH

378 249TH ST2013-03-29

13:31House

183.6

272 J, b

< 8.7< 14

< 5.6< 7.8

< 4.3< 3.7

< 5.7< 0.00023

< 0.12< 14

249378SVBA378 249TH ST

2013-03-2913:53

Back19

3.3< 31

2 J, b< 9.8

< 15< 6.3

< 8.815

< 4.1< 6.4

< 0.00026< 0.13

< 16249378SVBAD

378 249TH ST2013-03-29

13:53Back

193.3

< 291 J, b

< 9.3< 14

< 6< 8.4

14< 3.9

< 6.10.00027

< 0.12< 15

249378SVGC

378 249TH ST2013-03-29

14:10G

arage1.3

15< 8100

< 170< 2600

< 4000< 1700

< 23001800

62000< 1700

15< 0.11

< 4300249378SVG

C378 249TH ST

2013-06-2111:39

Garage

1.218

< 2900260 J, b

< 910< 1400

< 590< 820

< 4501000

< 60014

< 0.12< 1500

249378SVH378 249TH ST

2013-06-2111:48

House17

3.939

1.2 J, b< 11

< 18< 7.3

< 10< 5.7

< 4.8< 7.4

< 0.0003< 0.15

< 19249378SVBA

378 249TH ST2013-06-21

12:08Back

193.1

< 28< 0.8

< 9< 14

< 5.8< 8.1

< 4.5< 3.8

< 5.9< 0.00024

< 0.12< 15

249383SVB383 249TH ST

2010-05-2110:04

Back20

0.05251

81< 8.8

7.5< 5.7

< 7.9< 4.4

5.4< 5.8

< 0.00023< 0.12

< 3.6249383SVG

383 249TH ST2010-05-21

11:18G

arage20

< 0.02346

< 5.3< 20

< 7.8< 13

57< 10

< 8.5< 13

< 0.00023< 0.12

< 8.3249383SVH2

383 249TH ST2010-09-02

09:18House

200.81

< 112 J

< 8.7< 3.4

< 5.6< 7.8

< 4.3< 3.7

< 5.7< 0.00023

< 0.12< 3.6

249383SVB383 249TH ST

2012-06-0715:08

Back20

0.77< 19

0.48 J, b< 5.9

< 9.210

< 5.3< 3

< 2.5< 3.9

< 0.00021< 0.1

< 9.8249383SVBD

383 249TH ST2012-06-07

15:08Back

200.76

< 190.49 J, b

< 5.9< 9.2

11< 5.3

5.6 j< 2.5

< 3.9< 0.0002

< 0.1< 9.8

249383SVH2383 249TH ST

2012-06-0715:08

House20

0.85< 18

0.37 J, b< 5.7

< 9< 3.7

< 5.2< 2.9

< 2.4< 3.8

< 0.0002< 0.1

< 9.5249383SVG

383 249TH ST2012-06-07

15:45G

arage20

1.2< 19

0.56 J, b< 6.1

< 9.5< 3.9

< 5.5< 3

< 2.6< 4

< 0.00021< 0.11

< 10249383SVH2

383 249TH ST2013-04-18

14:58House

220.66

< 271.6 J, b

12< 14

< 5.6< 7.8

15< 3.7

< 5.7< 0.00023

< 0.12< 14

249383SVG383 249TH ST

2013-04-1815:25

Garage

210.9

< 280.95 J, b

< 9< 14

24< 8.1

< 4.5< 3.8

< 5.9< 0.00024

< 0.12< 15

249383SVGD

383 249TH ST2013-04-18

15:25G

arage22

0.93< 29

1.3 J, b< 9.3

< 1525

< 8.4< 4.7

< 4< 6.1

< 0.00025< 0.12

< 15249402SVH

402 249TH ST2010-09-20

13:42House

190.62

153.3 J, b

46< 3.5

< 5.8< 8

< 4.5< 3.8

< 5.9< 0.00024

< 0.12< 3.7

249402SVB402 249TH ST

2010-09-2014:24

Back20

0.2818

2.6 J, b28

< 3.5< 5.8

< 8.1< 4.5

< 3.8< 5.9

< 0.00024< 0.12

< 3.7249402SVF

402 249TH ST2010-09-20

14:59Front

191.7

111.2 J, b

17< 3.4

< 5.7< 7.9

< 4.4< 3.7

< 5.8< 0.00023

< 0.12< 3.6

249 402 SVH402 249TH ST

2012-03-2210:14

House21

1.220

0.95 J, b< 6

< 9.3< 3.8

< 5.4< 3

< 2.5< 3.9

< 0.00016< 0.079

< 9.8249 402 SVF

402 249TH ST2012-03-22

10:25Front

211

< 201.2 J, b

< 6.3< 9.9

< 4.1< 5.7

< 3.2< 2.7

4.2< 0.00017

< 0.084< 10

249402SVFS402 249TH ST

2012-03-2210:25

Front20.7

1.08< 22 U

< 1.3 U< 22 U

< 22 U< 2.2 U

< 2.2 U< 2.2 U

< 2.2 U< 2.2 U

< 0.21 U< 22 U

249 402 SVB402 249TH ST

2012-03-2210:51

Back20

0.5120

0.72 J, b< 5.8

< 9.1< 3.8

< 5.2< 2.9

< 2.5< 3.8

< 0.00016< 0.078

< 9.6249402SVH

402 249TH ST2013-07-02

09:46House

125.6

< 281.2 J, b

< 8.7< 14

62< 7.9

< 4.4< 3.7

< 5.70.0018

< 0.12< 14

249402SVB402 249TH ST

2013-07-0209:55

Back21

0.77< 28

< 0.78< 8.7

< 14< 5.7

< 7.9< 4.4

< 3.7< 5.7

< 0.00023< 0.12

< 14249402SVBD

402 249TH ST2013-07-02

09:55Back

210.76

< 280.98 J, b

< 8.8< 14

< 5.7< 7.9

< 4.4< 3.7

< 5.8< 0.00023

< 0.12< 14

249402SVF402 249TH ST

2013-07-0210:13

Front20

1.832

2.5 J, b< 8.4

< 13< 5.5

< 7.6< 4.2

< 3.6< 5.5

< 0.00022< 0.11

< 14249-412SVF

412 249TH ST2009-10-05

14:42Front

183.1

130< 3.1

< 9.2< 3.6

< 630

< 4.6< 3.9

< 6< 0.00024

< 3.8249412 SVH

412 249TH ST2011-09-13

09:24House

200.65

< 126.5 J, b

< 9.3< 14

< 6< 8.4

< 4.6< 3.9

9.2< 0.00025

< 0.12< 15

249412 SVF412 249TH ST

2011-09-1310:30

Front19

2.516

0.92 J, b< 8.8

< 14< 5.7

25< 4.4

< 3.7< 5.8

< 0.00023< 0.12

< 14249412 SVBA

412 249TH ST2011-09-26

13:38Back

192.6

< 111.5 J, b

< 9< 14

< 5.8< 8.1

< 4.5< 3.8

< 5.9< 0.00024

< 0.12< 15

249 412 SVH412 249TH ST

2012-09-2715:10

House20

0.7334

9.1 J, b9.5

< 14< 5.9

< 8.212

< 3.9< 6

< 0.00024< 0.12

< 15249 412 SVB A

412 249TH ST2012-09-27

15:20Back

165.6

< 291.1 J, b

< 9.1< 14

< 5.9< 8.2

< 4.6< 3.9

< 6< 0.00024

< 0.12< 15

249 412 SVF412 249TH ST

2012-09-2715:55

Front19

2< 29

1.4 J, b< 9.3

< 14< 6

18< 4.6

< 3.9< 6.1

< 0.00025< 0.12

< 15249412SVH

412 249TH ST2013-05-22

14:58House

200.79

294.7 J, b

< 8.9 PF< 14

< 5.8< 8

< 4.5< 3.8

< 5.9< 0.00024

< 0.12< 15

249412SVBA412 249TH ST

2013-05-2215:06

Back18

4.339

2.6 J, b< 9 PF

< 14< 5.8

< 8.1< 4.5

< 3.8< 5.9

< 0.00024< 0.12

< 15249412SVF

412 249TH ST2013-05-22

15:29Front

191.9

< 26< 2.4

< 8.3 PF< 13

< 5.416

< 4.2< 3.5

< 5.5< 0.00022

< 0.11< 14

Page 280: Table Proposed Cleanup Levels Groundwater · 10/21/2013  · Table 04 Summery of PrsllMnery Cost ES11motee for Soleening Feasibility Study Former Kest Property Carson, CA GeotFnlenGOneullanle

Table B-2Sub-Slab Soil Vapor Results

Former Kast Property

Carson, California

Residential Properties Sampled Through August 31, 2013

Page 48 of 235

Sample ID

AddressSam

ple Date

Sample Tim

eLocation

M24401 SVH

24401 MARBELLA AVE

2010-07-2909:17

HouseM

24401 SVG24401 M

ARBELLA AVE2010-07-29

10:15G

arageM

24401 SVB24401 M

ARBELLA AVE2010-07-29

10:52Back

M24401SVH

24401 MARBELLA AVE

2012-03-2914:46

HouseM

24401SVB24401 M

ARBELLA AVE2012-03-29

15:03Back

M24401SVG

24401 MARBELLA AVE

2012-03-2915:14

Garage

M24401SVG

D24401 M

ARBELLA AVE2012-03-29

15:14G

arageN

24402SVH24402 N

EPTUN

E AVE2010-07-01

14:03House

N24402SVB

24402 NEPTU

NE AVE

2010-07-0114:47

BackN

24402SVG24402 N

EPTUN

E AVE2010-07-01

15:31G

arageN

24402SVB24402 N

EPTUN

E AVE2012-10-04

15:08Back

N24402SVH

24402 NEPTU

NE AVE

2012-10-0415:13

HouseN

24402SVG24402 N

EPTUN

E AVE2012-10-04

16:03G

arageN

24402SVGD

24402 NEPTU

NE AVE

2012-10-0416:03

Garage

N24402SVHA

24402 NEPTU

NE AVE

2013-04-2510:07

HouseN

24402SVB24402 N

EPTUN

E AVE2013-04-25

10:09Back

N24402SVBD

24402 NEPTU

NE AVE

2013-04-2510:09

BackN

24402SVG24402 N

EPTUN

E AVE2013-04-25

10:35G

arageP24402SVB

24402 PANAM

A AVE2010-11-16

09:03Back

P24402SVG24402 PAN

AMA AVE

2010-11-1609:36

Garage

P24402SVH24402 PAN

AMA AVE

2010-11-1610:18

HouseP24402SVH

24402 PANAM

A AVE2012-12-21

09:47House

P24402SVG24402 PAN

AMA AVE

2012-12-2110:08

Garage

P24402SVB24402 PAN

AMA AVE

2012-12-2110:14

BackP24402SVH

24402 PANAM

A AVE2013-05-14

14:48House

P24402SVB24402 PAN

AMA AVE

2013-05-1414:52

BackP24402SVG

24402 PANAM

A AVE2013-05-14

15:24G

arageR24402SVB

24402 RAVENN

A AVE2009-10-02

15:36Back

R24402SVF24402 RAVEN

NA AVE

2009-10-0216:44

FrontR24402SVB

24402 RAVENN

A AVE2010-12-09

11:14Back

R24402SVF24402 RAVEN

NA AVE

2010-12-0911:54

FrontR24402SVFS

24402 RAVENN

A AVE2010-12-09

11:54Front

R24402SVH24402 RAVEN

NA AVE

2010-12-1313:44

HouseR24402SVB

24402 RAVENN

A AVE2012-05-25

09:55Back

R24402SVBD24402 RAVEN

NA AVE

2012-05-2509:55

BackR24402SVF

24402 RAVENN

A AVE2012-05-25

10:28Front

R24402SVH24402 RAVEN

NA AVE

2012-05-2510:54

HouseN

24403SVF24403 N

EPTUN

E AVE2010-06-25

09:26Front

N24403SVH

24403 NEPTU

NE AVE

2010-06-2510:04

HouseN

24403SVB24403 N

EPTUN

E AVE2010-06-25

11:12Back

N24403SVH

24403 NEPTU

NE AVE

2012-11-0909:48

HouseN

24403SVB24403 N

EPTUN

E AVE2012-11-09

10:18Back

N24403SVBD

24403 NEPTU

NE AVE

2012-11-0910:18

BackN

24403SVF24403 N

EPTUN

E AVE2012-11-09

10:31Front

N24403SVB

24403 NEPTU

NE AVE

2013-04-2410:19

BackN

24403SVH24403 N

EPTUN

E AVE2013-04-24

10:29House

N24403SVF

24403 NEPTU

NE AVE

2013-04-2410:49

FrontR24403SVH

24403 RAVENN

A AVE2010-06-14

14:21House

R24403SVF24403 RAVEN

NA AVE

2010-06-1414:26

FrontR24403SVB

24403 RAVENN

A AVE2010-06-14

15:03Back

R24403SVB24403 RAVEN

NA AVE

2013-03-2809:55

BackR24403SVBS

24403 RAVENN

A AVE2013-03-28

09:55Back Analyte

Units

Frequency of Detection

IsopropanolHexane

p/m-Xylene

C6-C8 Aliphatics

1,2,4-Trim

ethyl-benzene

HeptaneC8-C10

AliphaticsC10-C12

AliphaticsC5-C6

AliphaticsEthyl-

benzene

Cumene

(Isopropyl-benzene)

CyclohexaneFreon 11

Methylene

Chloride4-Ethyltoluene

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

4.47%3.74%

3.12%2.72%

2.63%2.63%

2.54%2.01%

2.01%1.97%

1.89%1.89%

1.72%1.72%

1.60%

< 11< 4

< 5< 93 N

,J< 5.6

< 4.7< 130 N

,J< 160 N

,J< 74 N

,J< 4.9

< 5.6< 3.9

< 6.4< 4

< 5.6< 11

< 4.1< 5

< 95 N,J

< 5.7< 4.8

< 140 N,J

< 160 N,J

< 75 N,J

< 5< 5.7

< 4< 6.5

4< 5.7

< 13< 4.8

< 5.9< 110 N

,J< 6.7

< 5.6< 160 N

,J< 190 N

,J< 88 N

,J< 5.9

< 6.7< 4.7

< 7.7< 4.7

< 6.7< 8

< 2.9< 3.5

< 67< 4

< 3.3< 95

< 110< 53

< 3.5< 4

< 2.8< 4.6

< 28< 4

< 7.5< 2.7

< 3.3< 62

< 3.7< 3.1

< 88< 100

< 49< 3.3

< 3.7< 2.6

< 4.3< 26

< 3.7< 8.1

< 2.9< 3.6

< 68< 4

< 3.4< 96

< 110< 53

< 3.6< 4

< 2.8< 4.6

< 29< 4

< 8.1< 2.9

< 3.6< 68

< 4< 3.4

< 96< 110

< 53< 3.6

< 4< 2.8

< 4.6< 29

< 4< 11

< 4.1< 5

< 95 N,J

< 5.7< 4.8

< 140 N,J

< 160 N,J

< 75 N,J

< 5< 5.7

< 4< 6.5

< 4< 5.7

< 11< 3.9

23< 92 N

,J19

< 4.6< 130 N

,J< 160 N

,J< 72 N

,J< 4.9

< 5.5< 3.8

< 6.3< 3.9

13< 11

< 4< 5

< 94 N,J

< 5.6< 4.7

< 130 N,J

< 160 N,J

< 74 N,J

< 5< 5.6

< 3.9< 6.4

< 4< 5.6

< 14< 5

< 6.1< 120

< 6.9< 5.8

< 160< 200

< 91< 6.1

< 6.9< 4.8

< 7.9< 49

< 6.9< 12

4.3< 5.2

< 98< 5.8

< 4.9< 140

< 160< 77

< 5.2< 5.8

< 4.1< 6.7

< 41< 5.8

< 12< 4.4

< 5.4< 100

< 6.1< 5.1

< 140< 170

< 80< 5.4

< 6.1< 4.2

< 6.9< 43

< 6.1< 12

< 4.4< 5.4

< 100< 6.1

< 5.1< 140

< 170< 80

< 5.4< 6.1

< 4.2< 6.9

< 43< 6.1

< 10< 3.7

< 4.5< 86

< 5.1< 4.3

< 120< 140

< 68< 4.5

< 5.1< 3.6

< 5.9< 36

< 5.1< 11

< 3.9< 4.8

< 91< 5.4

< 4.5< 130

< 150< 72

< 4.8< 5.4

< 3.8< 6.2

< 38< 5.4

< 11< 3.9

< 4.8< 90

< 5.4< 4.5

< 130< 150

< 71< 4.8

< 5.4< 3.8

< 6.2< 38

< 5.4< 12

< 4.2< 5.1

< 97< 5.8

< 4.8< 140

< 160< 76

< 5.1< 5.8

< 4.1< 6.6

< 41< 5.8

< 11< 3.9

< 4.9< 92

< 5.5< 4.6

< 130< 160

< 72< 4.9

< 5.5< 3.8

< 6.3< 3.9

< 5.5< 11

< 3.9< 4.9

< 92< 5.5

< 4.6< 130

< 160< 72

< 4.9< 5.5

< 3.8< 6.3

< 3.9< 5.5

< 12< 4.2

< 5.2< 98

< 5.9< 4.9

< 140< 170

< 77< 5.2

< 5.9< 4.1

< 6.7< 4.2

< 5.9< 12

< 4.4< 5.4

< 100< 6.1

< 5.1< 140

< 170< 80

< 5.4< 6.1

< 4.2< 6.9

< 43< 6.1

< 12< 4.2

< 5.2< 98

< 5.8< 4.9

< 140< 160

< 77< 5.2

< 5.8< 4.1

< 6.7< 41

< 5.8< 12

< 4.2< 5.2

< 98< 5.8

< 4.9< 140

< 160< 77

< 5.2< 5.8

< 4.1< 6.7

< 41< 5.8

< 13< 4.8

< 5.9< 110

< 6.7< 5.6

< 160< 190

< 88 PF< 5.9

< 6.7< 4.7

< 7.7< 47

< 6.7< 12

< 4.4< 5.5

< 100< 6.2

< 5.2< 150

< 180120 PF

< 5.5< 6.2

9.9< 7.1

< 44< 6.2

< 12< 4.1

< 5.1< 96

< 5.8< 4.8

< 140< 160

460 PF< 5.1

< 5.8< 4

< 6.6< 41

< 5.8< 11

< 4< 5

< 94 N,J

< 5.6< 4.7

< 130 N,J

< 160 N,J

< 74 N,J

< 5< 5.6

< 4< 6.5

< 4< 5.6

1700 E< 4.2

< 5.2< 98 N

,J< 5.9

< 4.9< 140 N

,J< 170 N

,J< 77 N

,J< 5.2

< 5.9< 4.1

< 6.7< 4.2

< 5.9< 12

< 4.2< 5.1

< 97< 5.8

< 4.8< 140

< 160< 77

< 5.1< 5.8

< 4.1< 6.6

< 4.1< 5.8

< 11< 4.1

< 5< 95

< 5.7< 4.7

< 130< 160

< 75< 5

< 5.7< 4

< 6.5< 4

< 5.7< 3.4

2< 3.4

< 1.7< 1.7

< 1.7< 1.7

< 3.42.6

< 1.7< 1.7

< 11< 3.9

< 4.9< 92

< 5.5< 4.6

< 130< 160

< 72< 4.9

< 5.5< 3.8

< 6.3< 3.9

< 5.510

< 2.9< 3.6

< 68< 4.1

< 3.4< 97

< 120< 54

< 3.6< 4.1

< 2.8< 4.7

< 29< 4.1

< 8.2< 2.9

< 3.6< 68

< 4.1< 3.4

< 97< 120

< 54< 3.6

< 4.1< 2.8

< 4.7< 29

< 4.1< 7.4

< 2.7< 3.3

< 62< 3.7

< 3.1< 88

< 100< 49

< 3.3< 3.7

< 2.6< 4.2

< 26< 3.7

< 7.9< 2.8

< 3.5< 66

< 4< 3.3

< 94< 110

< 52< 3.5

< 4< 2.8

< 4.5< 28

< 4< 11

< 4.1< 5

< 95 N,J

< 5.7< 4.8

< 140 N,J

< 160 N,J

< 75 N,J

< 5< 5.7

< 4< 6.5

< 4< 5.7

< 12< 4.2

< 5.1< 97 N

,J< 5.8

< 4.8< 140 N

,J< 160 N

,J< 77 N

,J< 5.1

< 5.8< 4.1

< 6.6< 4.1

< 5.8< 11

< 4< 4.9

< 93 N,J

< 5.6< 4.6

< 130 N,J

< 160 N,J

< 73 N,J

< 4.9< 5.6

< 3.9< 6.3

< 3.9< 5.6

< 11< 4.1

< 5< 95

< 5.7< 4.8

< 140< 160

< 75< 5

< 5.7< 4

< 6.5< 40

< 5.7< 12

< 4.2< 5.2

< 98< 5.9

< 4.9< 140

< 170< 78

< 5.2< 5.9

< 4.1< 6.7

< 42< 5.9

< 11< 4.1

< 5< 95

< 5.7< 4.8

< 140< 160

< 75< 5

< 5.7< 4

< 6.5< 40

< 5.7< 11

< 4.1< 5

< 95< 5.7

< 4.8< 140

< 160< 75

< 5< 5.7

< 4< 6.5

< 40< 5.7

< 11< 3.9

< 4.8< 91

< 5.4< 4.5

< 130< 150

< 72< 4.8

< 5.4< 3.8

< 6.2< 38

< 5.4< 12

< 4.1< 5.1

< 96< 5.8

< 4.8< 140

< 160< 76

< 5.1< 5.8

< 4< 6.6

< 41< 5.8

< 12< 4.1

< 5.1< 96

< 5.8< 4.8

< 140< 160

< 76< 5.1

< 5.8< 4

< 6.6< 41

< 5.8< 13

< 4.6< 5.7

< 110 N,J

< 6.4< 5.3

< 150 N,J

< 180 N,J

< 84 N,J

< 5.7< 6.4

< 4.5< 7.3

< 4.5< 6.4

< 12< 4.4

< 5.4< 100 N

,J< 6.1

< 5.1< 140 N

,J< 170 N

,J< 80 N

,J< 5.4

< 6.1< 4.3

< 7< 4.3

< 6.1< 12

< 4.1< 5.1

< 96 N,J

< 5.8< 4.8

< 140 N,J

< 160 N,J

< 76 N,J

< 5.1< 5.8

< 4< 6.6

< 4.1< 5.8

< 12< 4.4

< 5.4< 100

< 6.1< 5.1

< 140< 170

< 81< 5.4

< 6.1< 4.3

< 7< 43

< 6.1< 4 U

< 2 U< 4 U

< 2 U< 2 U

< 2 U< 2 U

< 4 U< 2 U

< 2 U< 2 U

Page 281: Table Proposed Cleanup Levels Groundwater · 10/21/2013  · Table 04 Summery of PrsllMnery Cost ES11motee for Soleening Feasibility Study Former Kest Property Carson, CA GeotFnlenGOneullanle

Table B-2Sub-Slab Soil Vapor Results

Former Kast Property

Carson, California

Residential Properties Sampled Through August 31, 2013

Page 49 of 235

Sample ID

AddressSam

ple Date

Sample Tim

eLocation

AnalyteU

nitsFrequency of D

etection

R24403SVF24403 RAVEN

NA AVE

2013-03-2810:26

FrontR24403SVFS

24403 RAVENN

A AVE2013-03-28

10:26Front

M24405SVF

24405 MARBELLA AVE

2010-11-1012:36

FrontM

24405SVH24405 M

ARBELLA AVE2010-11-10

14:10House

M24405 SVF

24405 MARBELLA AVE

2012-03-2215:21

FrontM

24405 SVH24405 M

ARBELLA AVE2012-03-22

15:27House

M24406SVB

24406 MARBELLA AVE

2010-09-1708:58

BackM

24406SVG24406 M

ARBELLA AVE2010-09-17

09:39G

arageM

24406SVGD

24406 MARBELLA AVE

2010-09-1709:39

Garage

M24406SVH

24406 MARBELLA AVE

2010-09-1710:22

HouseM

24406SVG24406 M

ARBELLA AVE2012-03-09

15:13G

arageM

24406SVH24406 M

ARBELLA AVE2012-03-09

15:40House

M24406SVB

24406 MARBELLA AVE

2012-03-0916:07

BackM

24406SVBD24406 M

ARBELLA AVE2012-03-09

16:07Back

M24406SVB

24406 MARBELLA AVE

2013-08-1513:41

BackM

24406SVH24406 M

ARBELLA AVE2013-08-15

13:53House

M24406SVG

24406 MARBELLA AVE

2013-08-1514:22

Garage

N24406SVH

24406 NEPTU

NE AVE

2010-04-2913:45

HouseN

24406SVF24406 N

EPTUN

E AVE2010-04-29

14:31Front

N24406SVFD

24406 NEPTU

NE AVE

2010-04-2914:31

FrontN

24406SVB24406 N

EPTUN

E AVE2010-04-29

15:22Back

N24406SVH

24406 NEPTU

NE AVE

2010-11-1211:08

HouseN

24406SVB24406 N

EPTUN

E AVE2010-11-12

12:22Back

N24406SVBS

24406 NEPTU

NE AVE

2010-11-1212:22

BackN

24406SVH24406 N

EPTUN

E AVE2012-01-26

11:02House

N24406SVG

24406 NEPTU

NE AVE

2012-01-2611:44

Garage

N24406SVB

24406 NEPTU

NE AVE

2012-01-2611:59

BackN

24406SVBS24406 N

EPTUN

E AVE2012-01-26

11:59Back

P24406SVB24406 PAN

AMA AVE

2009-09-1711:47

BackP24406SVB-D

24406 PANAM

A AVE2009-09-17

11:47Back

P24406SVF24406 PAN

AMA AVE

2009-09-1713:22

FrontP24406SVB

24406 PANAM

A AVE2010-07-21

09:22Back

P24406SVH24406 PAN

AMA AVE

2010-07-2110:50

HouseP24406SVB

24406 PANAM

A AVE2011-02-14

10:31Back

P24406SVH24406 PAN

AMA AVE

2011-02-1411:14

HouseP24406SVH

24406 PANAM

A AVE2012-08-16

15:05House

P24406SVF224406 PAN

AMA AVE

2012-08-1615:24

FrontP24406SVB

24406 PANAM

A AVE2012-08-16

15:48Back

P24406SVB D24406 PAN

AMA AVE

2012-08-1615:48

BackP24406SVH

24406 PANAM

A AVE2013-06-07

14:42House

P24406SVF224406 PAN

AMA AVE

2013-06-0714:46

FrontP24406SVB

24406 PANAM

A AVE2013-06-07

15:14Back

N24409SVG

24409 NEPTU

NE AVE

2010-07-1609:09

Garage

N24409SVB

24409 NEPTU

NE AVE

2010-07-1610:03

BackN

24409SVBD24409 N

EPTUN

E AVE2010-07-16

10:03Back

N24409SVH

24409 NEPTU

NE AVE

2012-05-0409:58

HouseN

24409SVG24409 N

EPTUN

E AVE2012-05-04

10:05G

arageN

24409SVGS

24409 NEPTU

NE AVE

2012-05-0410:05

Garage

N24409SVB

24409 NEPTU

NE AVE

2012-05-0410:39

BackN

24409SVBS24409 N

EPTUN

E AVE2012-05-04

10:39Back

N24409SVB

24409 NEPTU

NE AVE

2013-07-1115:40

BackN

24409SVH24409 N

EPTUN

E AVE2013-07-11

15:43House

IsopropanolHexane

p/m-Xylene

C6-C8 Aliphatics

1,2,4-Trim

ethyl-benzene

HeptaneC8-C10

AliphaticsC10-C12

AliphaticsC5-C6

AliphaticsEthyl-

benzene

Cumene

(Isopropyl-benzene)

CyclohexaneFreon 11

Methylene

Chloride4-Ethyltoluene

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

4.47%3.74%

3.12%2.72%

2.63%2.63%

2.54%2.01%

2.01%1.97%

1.89%1.89%

1.72%1.72%

1.60%

< 12< 4.2

< 5.2< 99

< 5.9< 4.9

< 140< 170

< 78< 5.2

< 5.9< 4.1

< 6.8< 42

< 5.9< 4 U

< 2 U< 4 U

< 2 U< 2 U

< 2 U< 2 U

< 4 U< 2 U

< 2 U< 2 U

< 12< 4.3

< 5.3< 100

< 6< 5

< 140< 170

< 80< 5.3

< 6< 4.2

< 6.9< 4.3

< 6< 12

< 4.1< 5.1

< 96< 5.8

< 4.8< 140

< 160< 76

< 5.1< 5.8

< 4< 6.6

< 4.1< 5.8

11< 3

< 3.6< 69

< 4.1< 3.4

< 98< 120

< 54< 3.6

< 4.1< 2.9

< 4.7< 29

< 4.1< 7.2

< 2.6< 3.2

< 60< 3.6

< 3< 85

< 100< 47

< 3.2< 3.6

< 2.5< 4.1

< 25< 3.6

< 12< 4.2

< 5.1< 97

< 5.8< 4.8

< 140< 160

< 77< 5.1

< 5.8< 4.1

< 6.6< 4.1

< 5.8< 11

< 4.1< 5

< 95< 5.7

< 4.8< 140

190< 75

< 58.5

< 4< 6.5

< 4< 5.7

< 11< 4.1

< 5< 95

< 5.7< 4.8

< 140< 160

< 75< 5

8.8< 4

< 6.5< 4

< 5.7< 11

< 4.112

2900< 5.7

7 b1600

< 160< 75

14< 5.7

89< 6.5

< 4< 5.7

< 7.94.6

< 3.51300

< 43.6

< 94< 110

< 52< 3.5

< 4< 2.8

< 4.5< 28

< 4< 8.1

< 2.9< 3.6

< 67< 4

< 3.4< 95

< 110< 53

< 3.6< 4

< 2.89.6

< 28< 4

294.7

< 3.2< 61

< 3.7< 3

< 87< 100

58< 3.2

< 3.7< 2.6

14< 26

< 3.7< 7.8

< 2.8< 3.4

< 65< 3.9

< 3.2< 92

< 110< 51

< 3.4< 3.9

< 2.714

< 27< 3.9

< 12< 4.4

< 5.4< 100

< 6.1< 5.1

< 140< 170

< 81< 5.4

< 6.1< 4.3

< 7< 43

< 6.1< 11

< 4.1< 5

< 95< 5.7

< 4.7< 130

< 160< 75

< 5< 5.7

< 416

< 40< 5.7

< 12< 4.2

< 5.2< 98

< 5.9< 4.9

< 140< 170

< 78< 5.2

< 5.9< 4.1

< 6.7< 42

< 5.9< 11

< 4.1< 5

< 95 N,J

< 5.7< 4.8

< 140 N,J

< 160 N,J

< 75 N,J

< 5< 5.7

< 4< 6.5

< 4< 5.7

< 12< 4.2

< 5.2< 99 N

,J< 5.9

< 4.9< 140 N

,J< 170 N

,J< 78 N

,J< 5.2

< 5.9< 4.1

< 6.8< 4.2

< 5.9200

< 4.213

1600 N,J

9.1< 4.9

580 N,J

< 170 N,J

< 78 N,J

6.5< 5.9

< 4.1< 6.8

< 4.26.1

< 12< 4.3

< 5.2< 99 N

,J6.6

< 5< 140 N

,J< 170 N

,J< 78 N

,J< 5.2

< 5.9< 4.2

< 6.8< 4.2

< 5.9< 11

< 4< 5

< 94< 5.6

< 4.7< 130

< 160< 74

< 5< 5.6

< 3.9< 6.4

< 4< 5.6

< 14< 5.1

< 6.3< 120

< 7.1< 5.9

< 170< 200

< 94< 6.3

< 7.1< 5

< 8.1< 5

< 7.1< 4.2

< 2.1< 4.2

< 2.1< 2.1

< 2.1< 2.1

< 4.2< 2.1

< 2.1< 2.1

< 7.9< 2.8

< 3.5< 66

< 4< 3.3

< 94< 110

< 52< 3.5

< 4< 2.8

< 4.5< 2.8

< 4< 10

< 3.7< 4.5

< 85< 5.1

< 4.3< 120

< 140< 67

< 4.5< 5.1

< 3.6< 5.8

73< 5.1

< 8.1< 2.9

< 3.6< 67

< 4< 3.4

120< 110

< 53< 3.6

< 4< 2.8

< 4.6< 2.8

< 4< 3.6 U

< 1.8 U< 3.6 U

< 1.8 U< 1.8 U

< 1.8 U< 1.8 U

< 3.6 U< 1.8 U

< 1.8 U< 1.8 U

< 13< 4.5

< 5.6< 100 N

,J< 6.3

< 5.3< 150 N

,J< 180 N

,J,UJ

< 83 N,J

< 5.67.7

< 4.4< 7.2

< 4.5< 6.3

< 13< 4.6

< 5.7< 110 N

,J< 6.5

< 5.4< 150 N

,J< 180 N

,J,UJ

< 85 N,J

< 5.78.7

< 4.5< 7.4

< 4.6< 6.5

20< 4

< 5< 94 N

,J< 5.6

< 4.7< 130 N

,J< 160 N

,J,UJ

< 74 N,J

< 5< 5.6

< 4< 6.5

< 4< 5.6

< 11< 4

< 5< 94 N

,J< 5.6

< 4.7< 130 N

,J< 160 N

,J< 74 N

,J< 5

< 5.6< 3.9

< 6.4< 4

< 5.6< 11

< 4.1< 5

< 95 N,J

< 5.7< 4.8

< 140 N,J

< 160 N,J

< 75 N,J

< 5< 5.7

< 4< 6.5

< 4< 5.7

< 11< 4

< 4.9< 93

< 5.6< 4.6

< 130< 160

< 73< 4.9

< 5.6< 3.9

8.2< 3.9

< 5.6< 12

< 4.2< 5.1

< 97< 5.8

< 4.8< 140

< 160< 77

< 5.1< 5.8

< 4.1< 6.6

< 4.1< 5.8

< 7.8< 2.8

< 3.4< 65

< 3.9< 3.2

< 92< 110

< 51< 3.4

< 3.9< 2.7

< 4.4< 27

< 3.924

4.1< 3.8

< 72< 4.3

< 3.6< 100

< 120< 57

< 3.8< 4.3

< 3< 4.9

< 30< 4.3

< 7.8< 2.8

< 3.4< 65

< 3.9< 3.2

< 92< 110

< 51< 3.4

< 3.9< 2.7

11< 27

< 3.9< 7.8

3< 3.4

< 65< 3.9

< 3.2< 92

< 110< 51

< 3.4< 3.9

< 2.710

< 27< 3.9

< 12< 4.4

< 5.4< 100

< 6.1< 5.1

< 140< 170

< 81< 5.4

< 6.1< 4.3

< 7< 43

< 6.1< 12

< 4.1< 5.1

< 96< 5.8

< 4.8< 140

< 160< 76

< 5.1< 5.8

< 4< 6.6

< 41< 5.8

< 11< 4

< 4.9< 93

< 5.6< 4.6

< 130< 160

< 73< 4.9

< 5.6< 3.9

8.7< 39

< 5.6< 11

< 4< 5

< 220 N,J

< 5.6< 4.7

< 320 N,J

< 380 N,J

< 180 N,J

< 5< 5.6

< 3.9< 6.4

< 4< 5.6

< 12< 4.3

< 5.2< 230 N

,J< 5.9

< 5< 330 N

,J< 400 N

,J< 180 N

,J< 5.2

< 5.9< 4.2

< 6.8< 4.2

< 5.9< 12

< 4.3< 5.2

< 240 N,J

< 5.9< 5

< 330 N,J

< 400 N,J

< 180 N,J

< 5.2< 5.9

< 4.2< 6.8

< 4.2< 5.9

< 7.8< 2.8

< 3.4< 65

< 3.9< 3.2

< 92< 110

140< 3.4

< 3.9< 2.7

< 4.4< 27

< 3.9< 7.6

< 2.7< 3.4

< 64< 3.8

< 3.2< 90

< 110< 50

< 3.4< 3.8

< 2.7< 4.4

< 27< 3.8

< 3.5 U< 1.7 U

< 3.5 U< 1.7 U

< 1.7 U< 1.7 U

< 1.7 U< 3.5 U

< 1.7 U< 1.7 U

< 1.7 U< 7.3

< 2.6< 3.2

< 61< 3.7

< 3< 87

< 100< 48

< 3.2< 3.7

< 2.6< 4.2

< 26< 3.7

< 3.3 U< 1.6 U

< 3.3 U< 1.6 U

< 1.6 U< 1.6 U

< 1.6 U< 3.3 U

< 1.6 U< 1.6 U

< 1.6 U< 12

< 4.5< 5.5

< 100< 6.2

< 5.2< 150

< 180< 82

< 5.5< 6.2

< 4.4< 7.1

< 44< 6.2

< 12< 4.3

< 5.3< 100

< 6< 5

< 140< 170

< 79< 5.3

< 6< 4.2

< 6.9< 42

< 6

Page 282: Table Proposed Cleanup Levels Groundwater · 10/21/2013  · Table 04 Summery of PrsllMnery Cost ES11motee for Soleening Feasibility Study Former Kest Property Carson, CA GeotFnlenGOneullanle

Table B-2Sub-Slab Soil Vapor Results

Former Kast Property

Carson, California

Residential Properties Sampled Through August 31, 2013

Page 50 of 235

Sample ID

AddressSam

ple Date

Sample Tim

eLocation

AnalyteU

nitsFrequency of D

etection

N24409SVG

24409 NEPTU

NE AVE

2013-07-1116:02

Garage

R24409SVH24409 RAVEN

NA AVE

2010-08-0409:03

HouseR24409SVB

24409 RAVENN

A AVE2010-08-04

09:44Back

R24409SVG24409 RAVEN

NA AVE

2010-08-0410:21

Garage

R24409SVH24409 RAVEN

NA AVE

2013-03-2114:41

HouseR24409SVG

24409 RAVENN

A AVE2013-03-21

14:53G

arageR24409SVG

D24409 RAVEN

NA AVE

2013-03-2114:53

Garage

R24409SVB24409 RAVEN

NA AVE

2013-03-2115:04

BackR24409SVH

24409 RAVENN

A AVE2013-08-09

14:35House

R24409SVB24409 RAVEN

NA AVE

2013-08-0915:04

BackR24409SVG

24409 RAVENN

A AVE2013-08-09

15:08G

arageP24410SVH

24410 PANAM

A AVE2010-07-30

14:06House

P24410SVB24410 PAN

AMA AVE

2010-07-3014:58

BackP24410SVG

24410 PANAM

A AVE2010-07-30

15:02G

arageP24410SVG

S24410 PAN

AMA AVE

2010-07-3015:02

Garage

P24410SVH24410 PAN

AMA AVE

2012-07-1909:52

HouseP24410SVG

24410 PANAM

A AVE2012-07-19

09:53G

arageP24410SVG

D24410 PAN

AMA AVE

2012-07-1909:53

Garage

P24410SVB24410 PAN

AMA AVE

2012-07-1910:25

BackM

24411SVH24411 M

ARBELLA AVE2010-09-13

13:36House

M24411SVF

24411 MARBELLA AVE

2010-09-1314:19

FrontM

24411 SVB224411 M

ARBELLA AVE2011-02-03

13:41Back

M24411SVF

24411 MARBELLA AVE

2012-04-2713:58

FrontM

24411SVFD24411 M

ARBELLA AVE2012-04-27

13:58Front

M24411SVB2

24411 MARBELLA AVE

2012-04-2714:24

BackP24411SVH

24411 PANAM

A AVE2010-07-06

09:31House

P24411SVG24411 PAN

AMA AVE

2010-07-0610:24

Garage

P24411SVB24411 PAN

AMA AVE

2010-07-0611:08

BackP24411SVH

24411 PANAM

A AVE2012-12-14

10:07House

P24411SVB24411 PAN

AMA AVE

2012-12-1410:13

BackP24411SVBD

24411 PANAM

A AVE2012-12-14

10:13Back

P24411SVG24411 PAN

AMA AVE

2012-12-1410:50

Garage

P24411SVG24411 PAN

AMA AVE

2013-05-0710:15

Garage

P24411SVHA24411 PAN

AMA AVE

2013-05-0710:35

HouseP24411SVB

24411 PANAM

A AVE2013-05-07

10:55Back

P24411SVBD24411 PAN

AMA AVE

2013-05-0710:55

BackN

24413SVH24413 N

EPTUN

E AVE2010-11-01

09:20House

N24413SVHD

24413 NEPTU

NE AVE

2010-11-0109:20

HouseN

24413SVF24413 N

EPTUN

E AVE2010-11-01

10:01Front

N24413SVB

24413 NEPTU

NE AVE

2010-11-0110:34

BackN

24413SVB24413 N

EPTUN

E AVE2012-10-11

14:59Back

N24413SVH

24413 NEPTU

NE AVE

2012-10-1115:15

HouseN

24413SVHD24413 N

EPTUN

E AVE2012-10-11

15:15House

N24413SVF

24413 NEPTU

NE AVE

2012-10-1115:34

FrontN

24413 SVH24413 N

EPTUN

E AVE2013-05-31

14:46House

N24413SVHS

24413 NEPTU

NE AVE

2013-05-3114:46

HouseN

24413 SVB24413 N

EPTUN

E AVE2013-05-31

15:09Back

N24413 SVF

24413 NEPTU

NE AVE

2013-05-3115:22

FrontR24413SVH

24413 RAVENN

A AVE2010-07-12

09:12House

R24413SVG24413 RAVEN

NA AVE

2010-07-1209:55

Garage

R24413SVB24413 RAVEN

NA AVE

2010-07-1210:38

BackR24413SVG

24413 RAVENN

A AVE2012-09-20

14:50G

arage

IsopropanolHexane

p/m-Xylene

C6-C8 Aliphatics

1,2,4-Trim

ethyl-benzene

HeptaneC8-C10

AliphaticsC10-C12

AliphaticsC5-C6

AliphaticsEthyl-

benzene

Cumene

(Isopropyl-benzene)

CyclohexaneFreon 11

Methylene

Chloride4-Ethyltoluene

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

4.47%3.74%

3.12%2.72%

2.63%2.63%

2.54%2.01%

2.01%1.97%

1.89%1.89%

1.72%1.72%

1.60%

< 12< 4.1

< 5.1< 96

< 5.8< 4.8

< 140< 160

< 76< 5.1

< 5.8< 4

< 6.6< 41

< 5.8< 11

< 4.1< 5

< 95 N,J

< 5.7< 4.7

< 130 N,J

< 160 N,J

< 75 N,J

< 5< 5.7

< 4< 6.5

< 4< 5.7

< 12< 4.3

< 5.3< 100 N

,J< 6

< 5< 140 N

,J< 170 N

,J< 79 N

,J< 5.3

< 6< 4.2

< 6.8< 4.2

< 6< 11

< 4.1< 5

< 95 N,J

< 5.7< 4.7

< 130 N,J

< 160 N,J

< 75 N,J

< 5< 5.7

< 4< 6.5

< 4< 5.7

< 12< 4.3

< 5.3< 100

< 6< 5

< 140< 170

< 80< 5.3

< 6< 4.2

< 6.9< 43

< 6< 12

< 4.1< 5.1

< 96< 5.8

< 4.8< 140

< 160< 76

< 5.1< 5.8

< 4< 6.6

< 41< 5.8

< 12< 4.1

< 5.1< 96

< 5.8< 4.8

< 140< 160

< 76< 5.1

< 5.8< 4

< 6.6< 41

< 5.8< 12

< 4.3< 5.3

< 100< 6

< 5< 140

< 170< 80

< 5.3< 6

< 4.2< 6.9

< 43< 6

< 11< 4.1

< 5< 95

< 5.7< 4.7

< 130< 160

< 75< 5

< 5.7< 4

< 6.5< 40

< 5.7< 12

< 4.5< 5.5

< 100< 6.3

< 5.2< 150

< 180< 82

< 5.5< 6.3

< 4.4< 7.2

< 44< 6.3

< 11< 4.1

< 5< 95

< 5.7< 4.8

< 140< 160

< 75< 5

< 5.7< 4

< 6.5< 40

< 5.7< 11

< 4.1< 5

< 95 N,J

< 5.7< 4.8

< 140 N,J

< 160 N,J

< 75 N,J

< 5< 5.7

< 4< 6.5

< 4< 5.7

< 12< 4.3

7.5< 99 N

,J7.9

< 5< 140 N

,J< 170 N

,J< 78 N

,J< 5.2

< 5.9< 4.2

< 6.8< 4.2

6.2< 11

< 4.1< 5

< 95 N,J

< 5.7< 4.8

< 140 N,J

< 160 N,J

< 75 N,J

< 5< 5.7

< 4< 6.5

< 4< 5.7

< 3.5< 1.7

< 3.5< 1.7

< 1.7< 1.7

< 1.7< 3.5

< 1.7< 1.7

< 1.7< 8

< 2.9< 3.5

< 67< 4 PF

< 3.3< 95

< 110< 53

< 3.5< 4

< 2.8< 4.6

< 28< 4

< 8.2< 2.9

< 3.6< 68

< 4.1 PF< 3.4

< 97< 120

< 54< 3.6

< 4.1< 2.8

< 4.7< 29

< 4.1< 8.2

< 2.9< 3.6

< 68< 4.1 PF

< 3.4< 97

< 120< 54

< 3.6< 4.1

< 2.8< 4.7

< 29< 4.1

< 7.4< 2.6

< 3.2< 61

< 3.7 PF< 3.1

< 87< 100

< 48< 3.2

< 3.7< 2.6

< 4.2< 26

< 3.727

< 4.2< 5.2

< 98< 5.8

< 4.9< 140

< 160< 77

< 5.2< 5.8

< 4.1< 6.7

< 4.18.2

< 12< 4.4

< 5.5< 100

< 6.2< 5.2

< 150< 180

< 82< 5.5

< 6.2< 4.3

< 7.1< 4.4

< 6.2< 12

6.127

< 9715

< 4.8< 140

< 160< 77

7.5< 5.8

< 4.1< 6.6

< 4.113

< 7.7< 2.7

< 3.4< 64

< 3.8< 3.2

< 91< 110

< 50< 3.4

< 3.8< 2.7

< 4.4< 27

< 3.8< 7.7

< 2.7< 3.4

< 64< 3.8

< 3.2< 91

< 110< 50

< 3.4< 3.8

< 2.7< 4.4

< 27< 3.8

< 7.2< 2.6

< 3.2< 60

< 3.6< 3

< 85< 100

< 47< 3.2

< 3.6< 2.5

< 4.1< 25

< 3.6< 11

< 4< 5

< 94 N,J

< 5.6< 4.7

< 130 N,J

< 160 N,J

< 74 N,J

< 5< 5.6

< 4< 6.5

< 4< 5.6

< 11< 4.1

190< 95 N

,J32

< 4.8< 140 N

,J< 160 N

,J< 75 N

,J22

< 5.7< 4

< 6.5< 4

29< 11

< 4.1< 5

< 95 N,J

< 5.7< 4.8

< 140 N,J

< 160 N,J

< 75 N,J

< 5< 5.7

< 4< 6.5

< 4< 5.7

< 11< 3.9

< 4.9< 92

< 5.5< 4.6

< 130< 160

< 72< 4.9

< 5.5< 3.8

< 6.3< 39

< 5.5< 12

< 4.4< 5.4

< 100< 6.1

< 5.1< 140

< 170< 80

< 5.4< 6.1

< 4.3< 7

< 43< 6.1

< 12< 4.2

< 5.1< 97

< 5.8< 4.8

< 140< 160

< 77< 5.1

< 5.8< 4.1

< 6.6< 41

< 5.8< 11

< 4< 4.9

< 93< 5.6

< 4.6< 130

< 160< 73

< 4.9< 5.6

< 3.9< 6.3

< 39< 5.6

< 11< 4.1

< 5< 95

< 5.7< 4.8

< 140< 160

< 75< 5

< 5.7< 4

< 6.5< 40

< 5.7< 12

< 4.2< 5.1

< 97< 5.8

< 4.8< 140

< 160< 76

< 5.1< 5.8

< 4.1< 6.6

< 41< 5.8

< 11< 4

< 4.9< 92

< 5.5< 4.6

< 130< 160

< 73< 4.9

< 5.5< 3.9

< 6.3< 39

< 5.5< 11

< 3.9< 4.9

< 92< 5.5

< 4.6< 130

< 160< 72

< 4.9< 5.5

< 3.8< 6.3

< 39< 5.5

< 12< 4.2

< 5.2< 98

< 5.8< 4.9

< 140< 160

< 77< 5.2

< 5.8< 4.1

< 6.7< 4.1

< 5.8< 12

< 4.2< 5.2

< 98< 5.8

< 4.9< 140

< 160< 77

< 5.2< 5.8

< 4.1< 6.7

< 4.1< 5.8

< 12< 4.2

< 5.2< 98

< 5.8< 4.9

< 140< 160

< 77< 5.2

< 5.8< 4.1

< 6.7< 4.1

< 5.8< 12

< 4.3< 5.2

< 99< 5.9

< 5< 140

< 170< 78

< 5.2< 5.9

< 4.2< 6.8

< 4.2< 5.9

< 12< 4.4

< 5.41300

< 6.1< 5.1

1900< 170

< 8018

< 6.1< 4.2

< 6.9< 43

< 6.1< 12

< 4.3< 5.2

< 99< 5.9

< 5< 140

< 170< 78

< 5.2< 5.9

< 4.2< 6.8

< 42< 5.9

< 12< 4.3

< 5.2< 99

< 5.9< 5

< 140< 170

< 78< 5.2

< 5.9< 4.2

< 6.8< 42

< 5.9< 13

328.7

2200 EZ< 6.3

389900 EZ

59000 EZ340

31< 6.3

< 4.4< 7.2

< 45< 6.3

< 12< 4.2

< 5.1< 97

< 5.8< 4.8

< 140< 160

< 76< 5.1

< 5.8< 4.1

< 6.6< 41

< 5.8< 20 U

2.4< 4 U

< 2 U< 2 U

< 2 U< 2 U

< 4 U< 2 U

< 2 U< 2 U

< 12< 4.2

< 5.2< 98

< 5.8< 4.9

< 140< 160

< 77< 5.2

< 5.8< 4.1

< 6.7< 41

< 5.8< 12

< 4.5< 5.5

< 100< 6.2

< 5.2< 150

< 180< 82

< 5.5< 6.2

< 4.4< 7.1

< 44< 6.2

< 12< 4.2

< 5.2< 99 N

,J< 5.9

< 4.9< 140 N

,J< 170 N

,J< 78 N

,J< 5.2

< 5.9< 4.1

< 6.8< 4.2

< 5.9< 12

< 4.2< 5.2

< 99 N,J

< 5.9< 4.9

< 140 N,J

< 170 N,J

< 78 N,J

< 5.2< 5.9

< 4.1< 6.8

< 4.2< 5.9

< 11< 4

< 5< 94 N

,J< 5.6

< 4.7< 130 N

,J< 160 N

,J< 74 N

,J< 5

< 5.6< 4

8.9< 4

< 5.6< 12

< 4.4< 5.4

< 100< 6.1

< 5.1< 140

< 170< 80

< 5.4< 6.1

< 4.2< 6.9

< 43< 6.1

Page 283: Table Proposed Cleanup Levels Groundwater · 10/21/2013  · Table 04 Summery of PrsllMnery Cost ES11motee for Soleening Feasibility Study Former Kest Property Carson, CA GeotFnlenGOneullanle

Table B-2Sub-Slab Soil Vapor Results

Former Kast Property

Carson, California

Residential Properties Sampled Through August 31, 2013

Page 51 of 235

Sample ID

AddressSam

ple Date

Sample Tim

eLocation

AnalyteU

nitsFrequency of D

etection

R24413SVGD

24413 RAVENN

A AVE2012-09-20

14:50G

arageR24413SVH

24413 RAVENN

A AVE2012-09-20

15:06House

R24413SVB24413 RAVEN

NA AVE

2012-09-2015:31

BackR24413SVG

24413 RAVENN

A AVE2013-05-10

14:45G

arageR24413SVH

24413 RAVENN

A AVE2013-05-10

14:45House

R24413SVB24413 RAVEN

NA AVE

2013-05-1015:14

BackN

24416SVBA24416 N

EPTUN

E AVE2011-01-21

09:15Back

N24416SVF

24416 NEPTU

NE AVE

2011-01-2110:01

FrontN

24416SVFD24416 N

EPTUN

E AVE2011-01-21

10:01Front

N24416SVH

24416 NEPTU

NE AVE

2011-01-2111:00

HouseN

24416SVH24416 N

EPTUN

E AVE2012-07-13

15:12House

N24416SVF

24416 NEPTU

NE AVE

2012-07-1315:37

FrontP24416SVH

24416 PANAM

A AVE2010-09-13

08:57House

P24416SVF24416 PAN

AMA AVE

2010-09-1309:32

FrontP24416SVFS

24416 PANAM

A AVE2010-09-13

09:32Front

P24416SVB24416 PAN

AMA AVE

2010-09-1310:13

BackP24416SVF

24416 PANAM

A AVE2012-05-18

09:55Front

P24416SVFD24416 PAN

AMA AVE

2012-05-1809:55

FrontP24416SVH

24416 PANAM

A AVE2012-05-18

10:15House

P24416SVB24416 PAN

AMA AVE

2012-05-1810:44

BackR24416SVF

24416 RAVENN

A AVE2009-09-19

14:20Front

R24416SVB24416 RAVEN

NA AVE

2009-09-1915:16

BackR24416SVB

24416 RAVENN

A AVE2010-07-26

09:24Back

R24416SVH24416 RAVEN

NA AVE

2010-07-2610:00

HouseR24416SVF

24416 RAVENN

A AVE2010-07-26

10:40Front

R24416SVF24416 RAVEN

NA AVE

2010-10-2910:10

FrontR24416SVH

24416 RAVENN

A AVE2013-02-01

09:44House

R24416SVB24416 RAVEN

NA AVE

2013-02-0109:54

BackR24416SVBD

24416 RAVENN

A AVE2013-02-01

09:54Back

R24416SVF224416 RAVEN

NA AVE

2013-02-0110:17

FrontR24416SVH

24416 RAVENN

A AVE2013-07-19

09:41House

R24416SVF224416 RAVEN

NA AVE

2013-07-1909:45

FrontR24416SVF2D

24416 RAVENN

A AVE2013-07-19

09:45Front

R24416SVB24416 RAVEN

NA AVE

2013-07-1910:23

BackN

24419SVH24419 N

EPTUN

E AVE2010-06-16

09:13House

N24419SVF

24419 NEPTU

NE AVE

2010-06-1610:13

FrontN

24419SVB24419 N

EPTUN

E AVE2010-06-16

11:03Back

N24419SVH

24419 NEPTU

NE AVE

2012-08-0309:46

HouseN

24419SVF24419 N

EPTUN

E AVE2012-08-03

10:11Front

N24419SVFS

24419 NEPTU

NE AVE

2012-08-0310:11

FrontN

24419SVB24419 N

EPTUN

E AVE2012-08-03

10:31Back

N24419SVBS

24419 NEPTU

NE AVE

2012-08-0310:31

BackN

24419SVH24419 N

EPTUN

E AVE2013-05-29

14:50House

N24419SVB

24419 NEPTU

NE AVE

2013-05-2914:52

BackN

24419SVBS24419 N

EPTUN

E AVE2013-05-29

14:52Back

N24419SVF

24419 NEPTU

NE AVE

2013-05-2915:14

FrontR24419SVB

24419 RAVENN

A AVE2009-09-21

15:24Back

R24419SVF24419 RAVEN

NA AVE

2009-09-2116:49

FrontR24419SVF

24419 RAVENN

A AVE2010-07-12

14:47Front

R24419SVB24419 RAVEN

NA AVE

2010-07-1215:27

BackR24419 SVHA

24419 RAVENN

A AVE2011-02-09

14:06House

R24419 SVF24419 RAVEN

NA AVE

2011-02-0914:38

Front

IsopropanolHexane

p/m-Xylene

C6-C8 Aliphatics

1,2,4-Trim

ethyl-benzene

HeptaneC8-C10

AliphaticsC10-C12

AliphaticsC5-C6

AliphaticsEthyl-

benzene

Cumene

(Isopropyl-benzene)

CyclohexaneFreon 11

Methylene

Chloride4-Ethyltoluene

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

4.47%3.74%

3.12%2.72%

2.63%2.63%

2.54%2.01%

2.01%1.97%

1.89%1.89%

1.72%1.72%

1.60%

< 12< 4.4

< 5.4< 100

< 6.1< 5.1

< 140< 170

< 80< 5.4

< 6.1< 4.2

< 6.9< 43

< 6.1< 11

4.2< 5

< 95< 5.7

< 4.8< 140

< 160< 75

< 5< 5.7

< 4< 6.5

< 40< 5.7

< 11< 4

< 5< 94

< 5.6< 4.7

< 130< 160

< 74< 5

< 5.6< 3.9

< 6.4< 40

< 5.6< 11

< 4.1< 5

< 95< 5.7

< 4.8< 140

< 160< 75 PF

< 5< 5.7

< 4< 6.5

< 40< 5.7

< 12< 4.1

< 5.1< 96

< 5.8< 4.8

< 140< 160

< 76 PF< 5.1

< 5.8< 4

< 6.6< 41

< 5.8< 13

< 4.6< 5.7

< 110< 6.4

< 5.3< 150

< 180< 84 PF

< 5.7< 6.4

< 4.58.8

< 45< 6.4

< 11< 4.1

< 5< 95

< 5.7< 4.8

< 140< 160

< 75< 5

< 5.7< 4

< 6.5< 4

< 5.7< 11

< 4< 5

< 94< 5.6

< 4.7< 130

< 160< 74

< 5< 5.6

< 3.9< 6.4

< 4< 5.6

< 11< 4

< 5< 94

< 5.6< 4.7

< 130< 160

< 74< 5

< 5.6< 3.9

< 6.4< 4

< 5.6< 12

< 4.3< 5.2

< 99< 5.9

< 5< 140

< 170< 78

< 5.2< 5.9

< 4.2< 6.8

< 4.2< 5.9

< 8.4< 3

< 3.7< 70

< 4.2< 3.5

< 100< 120

< 55< 3.7

< 4.2< 2.9

< 4.8< 30

< 4.212

< 2.9< 3.6

< 67< 4

< 3.4< 95

< 110< 53

< 3.6< 4

< 2.8< 4.6

< 28< 4

< 11< 3.9

< 4.8< 90

< 5.4< 4.5

< 130< 150

< 71< 4.8

< 5.4< 3.8

< 6.2< 3.8

< 5.4< 11

< 4< 5

< 94< 5.6

< 4.7< 130

< 160< 74

< 5< 5.6

< 3.9< 6.4

< 4< 5.6

5.1< 1.7

< 3.4< 1.7

< 1.7< 1.7

< 1.7< 3.4

< 1.7< 1.7

< 1.7< 12

4.2 J< 5.2

< 99< 5.9

< 5< 140

< 170< 78

< 5.2< 5.9

< 4.2< 6.8

< 4.2< 5.9

< 8.2< 2.9

< 3.6< 68

< 4.1< 3.4

< 97< 120

< 54< 3.6

< 4.1< 2.8

< 4.7< 29

< 4.1< 8.1

< 2.9< 3.6

< 68< 4

< 3.4< 96

< 110< 53

< 3.6< 4

< 2.8< 4.6

< 29< 4

< 7.5< 2.7

< 3.3< 63

< 3.8< 3.1

< 89< 110

< 50< 3.3

< 3.8< 2.6

< 4.3< 26

< 3.8< 7.7

< 2.8< 3.4

< 64< 3.8

< 3.2< 91

< 110< 51

< 3.4< 3.8

< 2.7< 4.4

< 27< 3.8

9.8< 3.3

5< 76 N

,J< 4.6

< 3.8< 110 N

,J< 130 N

,J,UJ

< 60 N,J

< 4< 4.6

< 3.2< 5.2

< 3.2< 4.6

< 11< 4

< 4.9< 93 N

,J< 5.6

< 4.6< 130 N

,J< 160 N

,J,UJ

< 73 N,J

< 4.9< 5.6

< 3.98.6

< 3.9< 5.6

19< 4.1

9< 95 N

,J6.4 PE

< 4.8< 140 N

,J< 160 N

,J< 75 N

,J< 5

< 5.7< 4

< 6.56.9

< 5.7< 11

< 4< 5

< 94 N,J

< 5.6< 4.7

< 130 N,J

< 160 N,J

< 74 N,J

< 5< 5.6

< 3.9< 6.4

< 4< 5.6

< 9.9< 3.6

< 4.4< 83 N

,J7.3 PE

< 4.1< 120 N

,J< 140 N

,J< 65 N

,J< 4.4

24< 3.5

< 5.7< 3.5

< 5< 12

< 4.2< 5.1

< 97< 5.8

< 4.8< 140

< 160< 77

< 5.1< 5.8

< 4.1< 6.6

< 4.1< 5.8

< 11< 4.1

< 5< 95

< 5.7< 4.8

< 140< 160

< 75< 5

< 5.7< 4

< 6.5< 40

< 5.7< 12

< 4.3< 5.2

< 99< 5.9

< 5< 140

< 170< 78

< 5.2< 5.9

< 4.219

< 42< 5.9

< 12< 4.2

< 5.2< 98

< 5.8< 4.9

< 140< 160

< 77< 5.2

< 5.8< 4.1

17< 41

< 5.8< 12

< 4.2< 5.2

< 98< 5.8

< 4.9< 140

< 160< 77

< 5.2< 5.8

< 4.1< 6.7

< 41< 5.8

< 12< 4.2

< 5.2< 98

< 5.8< 4.9

< 140< 160

< 77< 5.2

< 5.8< 4.1

< 6.7< 41

< 5.8< 12

< 4.4< 5.5

< 100< 6.2

< 5.2< 150

< 180< 82

< 5.5< 6.2

< 4.3< 7.1

< 44< 6.2

< 12< 4.4

< 5.5< 100

< 6.2< 5.2

< 150< 180

< 82< 5.5

< 6.2< 4.3

< 7.1< 44

< 6.2< 11

< 4.1< 5

< 95< 5.7

< 4.8< 140

< 160< 75

< 5< 5.7

< 4< 6.5

< 40< 5.7

< 12< 4.2

< 5.1< 97 N

,J< 5.8

< 4.8< 140 N

,J< 160 N

,J< 77 N

,J< 5.1

< 5.8< 4.1

< 6.6< 4.1

< 5.8< 12

< 4.2< 5.1

< 97 N,J

< 5.8< 4.8

< 140 N,J

< 160 N,J

< 77 N,J

< 5.1< 5.8

< 4.1< 6.6

< 4.1< 5.8

< 12< 4.3

< 5.2< 99 N

,J< 5.9

< 5< 140 N

,J< 170 N

,J< 78 N

,J< 5.2

< 5.9< 4.2

< 6.8< 4.2

< 5.9< 7.9

< 2.8< 3.5

< 66< 4

< 3.3< 94

< 110< 52

< 3.5< 4

< 2.8< 4.5

< 28< 4

< 11< 3.8

< 4.7< 89

< 5.4< 4.5

< 130< 150

< 70< 4.7

< 5.4< 3.8

< 6.1< 38

< 5.4< 21 U

< 2.1 U< 4.2 U

< 2.1 U< 2.1 U

< 2.1 U< 2.1 U

< 4.2 U< 2.1 U

< 2.1 U< 2.1 U

< 7.8< 2.8

< 3.4< 65

< 3.9< 3.2

< 92< 110

< 51< 3.4

< 3.9< 2.7

< 4.4< 27

< 3.9< 21 U

< 2.1 U< 4.1 U

< 2.1 U< 2.1 U

< 2.1 U< 2.1 U

< 4.1 U< 2.1 U

< 2.1 U< 2.1 U

< 7.6< 2.7

< 3.3< 63

< 3.8< 3.2

< 90< 110

< 50< 3.3

< 3.8< 2.6

< 4.3< 27

< 3.8< 11

< 4< 5

< 94< 5.6

< 4.7< 130

< 160< 74

< 5< 5.6

< 4< 6.5

< 40< 5.6

< 20 U< 2 U

< 4 U< 2 U

< 2 U< 2 U

< 2 U< 4 U

< 2 U< 2 U

< 2 U< 12

< 4.2< 5.2

< 99< 5.9

< 4.9< 140

< 170< 78

< 5.2< 5.9

< 4.1< 6.8

< 42< 5.9

< 7.6< 2.7

< 3.4< 64 N

,J< 3.8

< 3.2< 90 N

,J< 110 J,N

,UJ

< 50 N,J

< 3.4< 3.8

< 2.7< 4.4

< 2.7< 3.8

< 9.4< 3.4

< 4.1< 78 N

,J< 4.7

< 3.9< 110 N

,J< 130 J,N

,UJ

< 62 N,J

< 4.1< 4.7

< 3.3< 5.4

< 3.3< 4.7

< 12< 4.3

< 5.2< 99 N

,J< 5.9

< 5< 140 N

,J< 170 N

,J< 78 N

,J< 5.2

< 5.9< 4.2

< 6.8< 4.2

< 5.9< 12

< 4.2< 5.2

< 99 N,J

< 5.9< 4.9

< 140 N,J

< 170 N,J

< 78 N,J

< 5.2< 5.9

< 4.1< 6.8

< 4.2< 5.9

< 12< 4.3

< 5.2< 99

< 5.9< 5

< 140< 170

< 78< 5.2

< 5.9< 4.2

< 6.8< 4.2

< 5.9< 11

< 4.1< 5

< 95< 5.7

< 4.8< 140

< 160< 75

< 5< 5.7

< 4< 6.5

< 4< 5.7

Page 284: Table Proposed Cleanup Levels Groundwater · 10/21/2013  · Table 04 Summery of PrsllMnery Cost ES11motee for Soleening Feasibility Study Former Kest Property Carson, CA GeotFnlenGOneullanle

Table B-2Sub-Slab Soil Vapor Results

Former Kast Property

Carson, California

Residential Properties Sampled Through August 31, 2013

Page 52 of 235

Sample ID

AddressSam

ple Date

Sample Tim

eLocation

AnalyteU

nitsFrequency of D

etection

R24419 SVB24419 RAVEN

NA AVE

2011-02-0915:19

BackR24419SVF

24419 RAVENN

A AVE2012-06-15

14:37Front

R24419SVFD24419 RAVEN

NA AVE

2012-06-1514:37

FrontR24419SVB

24419 RAVENN

A AVE2012-06-15

14:54Back

R24419SVHA24419 RAVEN

NA AVE

2012-06-1515:19

HouseR24419SVHA

24419 RAVENN

A AVE2013-04-12

14:47House

R24419SVF24419 RAVEN

NA AVE

2013-04-1214:52

FrontR24419SVB

24419 RAVENN

A AVE2013-04-12

15:19Back

P24420SVB24420 PAN

AMA AVE

2010-09-1514:19

BackP24420SVFA

24420 PANAM

A AVE2011-02-17

13:51Front

P24420SVB24420 PAN

AMA AVE

2011-02-1714:25

BackP24420SVBD

24420 PANAM

A AVE2011-02-17

14:25Back

P24420SVB24420 PAN

AMA AVE

2012-12-0710:00

BackP24420SVHA

24420 PANAM

A AVE2012-12-07

10:23House

P24420SVFA24420 PAN

AMA AVE

2012-12-0710:56

FrontP24420SVB

24420 PANAM

A AVE2013-08-01

09:57Back

P24420SVBS24420 PAN

AMA AVE

2013-08-0109:57

BackP24420SVHA

24420 PANAM

A AVE2013-08-01

10:03House

P24420SVFA24420 PAN

AMA AVE

2013-08-0110:26

FrontP24421SVB

24421 PANAM

A AVE2010-10-19

13:50Back

P24421SVBD24421 PAN

AMA AVE

2010-10-1913:50

BackP24421SVF

24421 PANAM

A AVE2010-10-19

14:27Front

P24421SVHA24421 PAN

AMA AVE

2011-03-0313:34

HouseP24421SVB

24421 PANAM

A AVE2011-03-03

15:03Back

P24421SVB24421 PAN

AMA AVE

2013-03-1409:48

BackP24421SVBS

24421 PANAM

A AVE2013-03-14

09:48Back

P24421SVHA24421 PAN

AMA AVE

2013-03-1410:02

HouseP24421SVF

24421 PANAM

A AVE2013-03-14

10:29Front

P24421SVFS24421 PAN

AMA AVE

2013-03-1410:29

FrontP24421SVB

24421 PANAM

A AVE2013-08-02

11:25Back

P24421SVHA24421 PAN

AMA AVE

2013-08-0211:51

HouseP24421SVF

24421 PANAM

A AVE2013-08-02

12:15Front

M24422SVB

24422 MARBELLA AVE

2010-09-1509:47

BackM

24422SVF24422 M

ARBELLA AVE2010-09-15

10:20Front

M24422SVFS

24422 MARBELLA AVE

2010-09-1510:20

FrontM

24422SVH24422 M

ARBELLA AVE2010-09-15

11:34House

M24422SVH

24422 MARBELLA AVE

2012-07-1210:05

HouseM

24422SVB24422 M

ARBELLA AVE2012-07-12

10:13Back

M24422SVBS

24422 MARBELLA AVE

2012-07-1210:13

BackM

24422SVF24422 M

ARBELLA AVE2012-07-12

10:57Front

M24422SVFS

24422 MARBELLA AVE

2012-07-1210:57

FrontN

24422SVB24422 N

EPTUN

E AVE2009-09-21

11:40Back

N24422SVF

24422 NEPTU

NE AVE

2009-09-2112:50

FrontN

24422SVH24422 N

EPTUN

E AVE2010-07-09

09:27House

N24422SVF

24422 NEPTU

NE AVE

2010-07-0910:12

FrontN

24422SVB24422 N

EPTUN

E AVE2010-07-09

10:51Back

N24422SVB

24422 NEPTU

NE AVE

2011-01-2015:21

BackN

24422SVBD24422 N

EPTUN

E AVE2011-01-20

15:21Back

N24422SVH

24422 NEPTU

NE AVE

2011-01-2015:38

HouseN

24422SVF24422 N

EPTUN

E AVE2011-01-20

15:58Front

N24422SVH

24422 NEPTU

NE AVE

2013-08-0809:54

HouseN

24422SVB24422 N

EPTUN

E AVE2013-08-08

09:58Back

IsopropanolHexane

p/m-Xylene

C6-C8 Aliphatics

1,2,4-Trim

ethyl-benzene

HeptaneC8-C10

AliphaticsC10-C12

AliphaticsC5-C6

AliphaticsEthyl-

benzene

Cumene

(Isopropyl-benzene)

CyclohexaneFreon 11

Methylene

Chloride4-Ethyltoluene

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

4.47%3.74%

3.12%2.72%

2.63%2.63%

2.54%2.01%

2.01%1.97%

1.89%1.89%

1.72%1.72%

1.60%

< 12< 4.3

< 5.2< 99

< 5.9< 5

< 140< 170

< 78< 5.2

< 5.9< 4.2

< 6.8< 4.2

< 5.9< 7.7

< 2.8< 3.4

< 64< 3.8

< 3.2< 91

< 110< 51

< 3.4< 3.8

< 2.7< 4.4

< 27< 3.8

< 7.7< 2.8

< 3.4< 64

< 3.8< 3.2

< 91< 110

< 51< 3.4

< 3.8< 2.7

< 4.4< 27

< 3.8< 8.1

< 2.9< 3.6

< 68< 4

< 3.4< 96

< 110< 53

< 3.6< 4

< 2.8< 4.6

< 29< 4

< 7.9< 2.8

< 3.5< 66

< 4< 3.3

< 94< 110

< 52< 3.5

< 4< 2.8

< 4.5< 28

< 4< 12

< 4.1< 5.1

< 96< 5.8

< 4.8< 140

< 160< 76 PF

< 5.1< 5.8

< 4< 6.6

< 41< 5.8

< 12< 4.2

< 5.2< 98

< 5.9< 4.9

< 140< 170

< 77 PF< 5.2

< 5.9< 4.1

< 6.7< 42

< 5.9< 12

< 4.2< 5.1

< 97< 5.8

< 4.8< 140

< 160< 77 PF

< 5.1< 5.8

< 4.1< 6.6

< 41< 5.8

< 11< 4.1

< 5< 95

< 5.7< 4.8

< 140< 160

< 75< 5

< 5.7< 4

< 6.5< 4

< 5.7< 11

< 4< 5

< 94< 5.6

< 4.7< 130

< 160< 74

< 5< 5.6

< 4< 6.5

< 4< 5.6

< 11< 4.1

< 5< 95

< 5.7< 4.8

< 140< 160

< 75< 5

< 5.7< 4

< 6.5< 4

< 5.7< 11

< 4.1< 5

< 95< 5.7

< 4.8< 140

< 160< 75

< 5< 5.7

< 4< 6.5

< 4< 5.7

< 11< 4.1

< 5< 95

< 5.7< 4.8

< 140< 160

< 75< 5

< 5.7< 4

< 6.5< 40

< 5.7< 11

< 3.9< 4.9

< 92< 5.5

< 4.6< 130

< 160< 72

< 4.9< 5.5

< 3.8< 6.3

< 39< 5.5

< 11< 4.1

< 5< 95

< 5.7< 4.8

< 140< 160

< 75< 5

< 5.7< 4

< 6.5< 40

< 5.7< 12

< 4.2< 5.2

< 99< 5.9

< 4.9< 140

< 170< 78

< 5.2< 5.9

< 4.1< 6.8

< 42< 5.9

< 21 U< 2.1 U

< 4.1 U< 2.1 U

< 2.1 U< 2.1 U

< 2.1 U< 4.1 U

< 2.1 U< 2.1 U

< 2.1 U< 11

< 4< 4.9

< 92< 5.5

< 4.6< 130

< 160< 73

< 4.9< 5.5

< 3.9< 6.3

< 39< 5.5

< 12< 4.2

< 5.2< 98

< 5.8< 4.9

< 140< 160

< 77< 5.2

< 5.8< 4.1

< 6.7< 41

< 5.8< 12

< 4.3< 5.2

< 99< 5.9

< 5< 140

< 170< 78

< 5.2< 5.9

< 4.2< 6.8

< 4.2< 5.9

< 12< 4.2

< 5.2< 98

< 5.9< 4.9

< 140< 170

< 78< 5.2

< 5.9< 4.1

< 6.7< 4.2

< 5.9< 11

< 3.9< 4.9

< 92< 5.5

< 4.6< 130

< 160< 72

< 4.9< 5.5

< 3.8< 6.3

< 3.9< 5.5

< 12< 4.2

< 5.2< 98

< 5.8< 4.9

< 140< 160

< 77< 5.2

< 5.8< 4.1

< 6.7< 4.1

< 5.8< 11

< 3.9< 4.9

< 92< 5.5

< 4.6< 130

< 160< 72

< 4.9< 5.5

< 3.8< 6.3

< 3.9< 5.5

< 12< 4.2

< 5.1< 97

< 5.8< 4.8

< 140< 160

< 76< 5.1

< 5.8< 4.1

< 6.6< 41

< 5.8< 20 U

< 2 U< 4.1 U

< 2 U< 2 U

< 2 U< 2 U

< 4.1 U< 2 U

< 2 U< 2 U

< 11< 3.8

< 4.7< 89

< 5.4< 4.5

< 130< 150

< 70< 4.7

< 5.4< 3.8

< 6.1< 38

< 5.4< 11

< 4< 4.9

< 93< 5.6

< 4.6< 130

< 160< 73

< 4.9< 5.6

< 3.9< 6.4

< 39< 5.6

< 19 U< 1.9 U

< 3.9 U< 1.9 U

< 1.9 U< 1.9 U

< 1.9 U< 3.9 U

< 1.9 U< 1.9 U

< 1.9 U< 12

< 4.4< 5.4

< 100< 6.1

< 5.1< 140

< 170< 80

< 5.4< 6.1

< 4.2< 6.9

< 43< 6.1

< 11< 4.1

< 5< 95

< 5.7< 4.8

< 140< 160

< 75< 5

< 5.7< 4

< 6.5< 40

< 5.7< 12

< 4.2< 5.2

< 98< 5.9

< 4.9< 140

< 170< 78

< 5.2< 5.9

< 4.1< 6.7

< 42< 5.9

< 12< 4.2

< 5.2< 98

< 5.9< 4.9

< 140< 170

< 77< 5.2

< 5.9< 4.1

< 6.7< 4.2

< 5.9< 12

< 4.2< 5.2

< 98< 5.9

< 4.9< 140

< 170< 77

< 5.2< 5.9

< 4.1< 6.7

< 4.2< 5.9

< 3.5< 1.7

< 3.5< 1.7

< 1.7< 1.7

< 1.7< 3.5

< 1.7< 1.7

< 1.7< 11

< 45.4

< 94< 5.6

< 4.7< 130

< 160< 74

< 5< 5.6

< 4< 6.5

< 4< 5.6

< 7.9< 2.8

< 3.5< 66

< 4 PF< 3.3

< 94< 110

< 52< 3.5

< 4< 2.8

< 4.5< 28

< 4< 8.1

< 2.9< 3.6

< 67< 4 PF

< 3.4< 95

< 110< 53

< 3.6< 4

< 2.8< 4.6

< 28< 4

< 21 U< 2.1 U

< 4.1 U< 2.1 U

< 2.1 U< 2.1 U

< 2.1 U< 4.1 U

< 2.1 U< 2.1 U

< 2.1 U< 7.8

< 2.8< 3.4

< 65< 3.9 PF

< 3.2< 92

< 110< 51

< 3.4< 3.9

< 2.7< 4.4

< 27< 3.9

< 20 U< 2 U

< 3.9 U< 2 U

< 2 U< 2 U

< 2 U< 3.9 U

< 2 U< 2 U

< 2 U< 13

< 4.6< 5.7

< 110 J,N< 6.5

< 5.4< 150 J,N

< 180 J,N,U

J< 85 J,N

< 5.7< 6.5

< 4.5< 7.4

< 4.6< 6.5

< 12< 4.3

< 5.2< 99 J,N

< 5.9< 5

< 140 J,N< 170 J,N

,UJ

< 78 J,N< 5.2

6.3< 4.2

< 6.8< 4.2

< 5.9< 11

6.946

< 95 N,J

43< 4.8

< 140 N,J

< 160 N,J

< 75 N,J

6.8< 5.7

< 4< 6.5

< 428

< 12< 4.2

< 5.2< 98 N

,J< 5.8

< 4.9< 140 N

,J< 160 N

,J< 77 N

,J< 5.2

< 5.8< 4.1

< 6.7< 4.1

< 5.8< 12

< 4.2< 5.2

< 98 N,J

< 5.8< 4.9

< 140 N,J

< 160 N,J

< 77 N,J

< 5.2< 5.8

< 4.1< 6.7

< 4.1< 5.8

< 12< 4.4

< 5.5< 100

< 6.2< 5.2

< 150< 180

< 82< 5.5

< 6.2< 4.3

< 7.1< 4.4

< 6.2< 12

< 4.4< 5.5

< 100< 6.2

< 5.2< 150

< 180< 82

< 5.5< 6.2

< 4.3< 7.1

< 4.4< 6.2

< 11< 4

< 5< 93

< 5.6< 4.7

< 130< 160

< 74< 4.9

< 5.6< 3.9

< 6.4< 4

< 5.6< 12

< 4.1< 5.1

< 96< 5.8

< 4.8< 140

< 160< 76

< 5.1< 5.8

< 4< 6.6

< 4.1< 5.8

< 11< 4

< 5< 93

< 5.6< 4.7

< 130< 160

< 74< 4.9

< 5.6< 3.9

< 6.4< 40

< 5.6< 12

< 4.5< 5.5

< 100< 6.3

< 5.2< 150

< 180< 82

< 5.5< 6.3

< 4.4< 7.2

< 44< 6.3

Page 285: Table Proposed Cleanup Levels Groundwater · 10/21/2013  · Table 04 Summery of PrsllMnery Cost ES11motee for Soleening Feasibility Study Former Kest Property Carson, CA GeotFnlenGOneullanle

Table B-2Sub-Slab Soil Vapor Results

Former Kast Property

Carson, California

Residential Properties Sampled Through August 31, 2013

Page 53 of 235

Sample ID

AddressSam

ple Date

Sample Tim

eLocation

AnalyteU

nitsFrequency of D

etection

N24422SVBS

24422 NEPTU

NE AVE

2013-08-0809:58

BackN

24422SVF24422 N

EPTUN

E AVE2013-08-08

10:22Front

R24422SVH24422 RAVEN

NA AVE

2011-01-1909:32

HouseR24422SVBA

24422 RAVENN

A AVE2011-01-19

10:20Back

R24422SVF24422 RAVEN

NA AVE

2011-01-1910:57

FrontR24422SVFD

24422 RAVENN

A AVE2011-01-19

10:57Front

R24422SVBA24422 RAVEN

NA AVE

2012-12-2009:57

BackR24422SVBAD

24422 RAVENN

A AVE2012-12-20

09:57Back

R24422SVH24422 RAVEN

NA AVE

2012-12-2010:11

HouseR24422SVF

24422 RAVENN

A AVE2012-12-20

10:35Front

R24422SVBA24422 RAVEN

NA AVE

2013-06-2109:45

BackR24422SVBAD

24422 RAVENN

A AVE2013-06-21

09:45Back

R24422SVH24422 RAVEN

NA AVE

2013-06-2109:45

HouseR24422SVF

24422 RAVENN

A AVE2013-06-21

10:11Front

M24423SVH

24423 MARBELLA AVE

2010-06-0213:55

HouseM

24423SVB24423 M

ARBELLA AVE2010-06-02

14:36Back

M24423SVG

24423 MARBELLA AVE

2010-06-0215:41

Garage

M24423SVG

24423 MARBELLA AVE

2012-06-2110:00

Garage

M24423SVG

S24423 M

ARBELLA AVE2012-06-21

10:00G

arageM

24423SVH24423 M

ARBELLA AVE2012-06-21

10:06House

M24423SVB

24423 MARBELLA AVE

2012-06-2110:52

BackM

24423SVBS24423 M

ARBELLA AVE2012-06-21

10:52Back

N24423SVH

24423 NEPTU

NE AVE

2010-09-2314:34

HouseN

24423SVF24423 N

EPTUN

E AVE2010-09-23

15:18Front

N24423SVB

24423 NEPTU

NE AVE

2010-09-2316:01

BackN

24423SVH24423 N

EPTUN

E AVE2011-01-12

11:21House

N24423SVHD

24423 NEPTU

NE AVE

2011-01-1211:21

HouseN

24423SVF24423 N

EPTUN

E AVE2011-10-26

12:54Front

N24423SVH

24423 NEPTU

NE AVE

2011-10-2613:44

HouseN

24423SVHD24423 N

EPTUN

E AVE2011-10-26

13:44House

N24423SVB

24423 NEPTU

NE AVE

2011-10-2614:24

BackN

24423SVH24423 N

EPTUN

E AVE2012-10-12

15:02House

N24423SVB

24423 NEPTU

NE AVE

2012-10-1215:21

BackN

24423SVBD24423 N

EPTUN

E AVE2012-10-12

15:21Back

N24423SVF

24423 NEPTU

NE AVE

2012-10-1215:43

FrontN

24423SVB24423 N

EPTUN

E AVE2013-05-08

14:55Back

N24423SVH

24423 NEPTU

NE AVE

2013-05-0815:20

HouseN

24423SVF24423 N

EPTUN

E AVE2013-05-08

15:28Front

R24423SVB24423 RAVEN

NA AVE

2009-09-2409:10

BackR24423SVF

24423 RAVENN

A AVE2009-09-24

10:25Front

R24423SVFD24423 RAVEN

NA AVE

2009-09-2410:25

FrontR24423SVB

24423 RAVENN

A AVE2012-10-26

14:39Back

R24423SVH24423 RAVEN

NA AVE

2012-10-2614:55

HouseR24423SVF

24423 RAVENN

A AVE2012-10-26

15:08Front

R24423SVB24423 RAVEN

NA AVE

2013-07-1809:44

BackR24423SVBD

24423 RAVENN

A AVE2013-07-18

09:44Back

R24423SVH24423 RAVEN

NA AVE

2013-07-1809:49

HouseR24423SVF

24423 RAVENN

A AVE2013-07-18

10:04Front

M24426SVB

24426 MARBELLA AVE

2009-09-1812:32

BackM

24426SVF24426 M

ARBELLA AVE2009-09-21

10:04Front

M24426SVH

24426 MARBELLA AVE

2011-10-0613:43

HouseM

24426SVHD24426 M

ARBELLA AVE2011-10-06

13:43House

IsopropanolHexane

p/m-Xylene

C6-C8 Aliphatics

1,2,4-Trim

ethyl-benzene

HeptaneC8-C10

AliphaticsC10-C12

AliphaticsC5-C6

AliphaticsEthyl-

benzene

Cumene

(Isopropyl-benzene)

CyclohexaneFreon 11

Methylene

Chloride4-Ethyltoluene

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

4.47%3.74%

3.12%2.72%

2.63%2.63%

2.54%2.01%

2.01%1.97%

1.89%1.89%

1.72%1.72%

1.60%

< 22 U< 2.2 U

< 4.3 U< 2.2 U

< 2.2 U< 2.2 U

< 2.2 U< 4.3 U

< 2.2 U< 2.2 U

< 2.2 U< 12

< 4.3< 5.3

< 100< 6

< 5< 140

< 170< 79

< 5.3< 6

< 4.2< 6.8

< 42< 6

< 16< 5.7

< 7< 130

< 7.9< 6.6

< 190< 220

< 100< 7

< 7.9< 5.5

< 9< 5.6

< 7.9< 12

< 4.3< 5.2

< 99< 5.9

< 5< 140

< 170< 78

< 5.2< 5.9

< 4.2< 6.8

< 4.2< 5.9

< 11< 4.1

< 5< 95

< 5.7< 4.8

< 140< 160

< 75< 5

< 5.7< 4

< 6.5< 4

< 5.7< 11

< 4.1< 5

< 95< 5.7

< 4.8< 140

< 160< 75

< 5< 5.7

< 4< 6.5

< 4< 5.7

< 24< 8.5

< 10< 200

< 12< 9.9

< 280< 340

< 160< 10

< 12< 8.3

< 14< 84

< 12< 12

< 4.1< 5.1

< 96< 5.8

< 4.8< 140

< 160< 76

< 5.1< 5.8

< 4< 6.6

< 41< 5.8

< 12< 4.2

< 5.2< 98

< 5.8< 4.9

< 140< 160

< 77< 5.2

< 5.8< 4.1

< 6.7< 41

< 5.8< 11

< 4< 5

< 93< 5.6

< 4.7< 130

< 160< 74

< 4.9< 5.6

< 3.9< 6.4

< 40< 5.6

< 12< 4.4

< 5.4< 100

< 6.2< 5.1

< 150< 170

< 81< 5.4

< 6.2< 4.3

< 7< 44

< 6.2< 12

< 4.5< 5.5

< 100< 6.3

< 5.2< 150

< 180< 82

< 5.5< 6.3

< 4.4< 7.2

< 44< 6.3

< 11< 4

< 4.9< 93

< 5.6< 4.6

< 130< 160

< 73< 4.9

< 5.6< 3.9

< 6.3< 39

< 5.6< 12

< 4.2< 5.1

< 97< 5.8

< 4.8< 140

< 160< 77

< 5.1< 5.8

< 4.1< 6.6

< 41< 5.8

< 11< 4

< 5< 94 N

,J< 5.6

< 4.7< 130 N

,J< 160 N

,J< 74 N

,J< 5

< 5.6< 3.9

< 6.4< 4

< 5.6< 12

< 4.3< 5.2

< 99 N,J

< 5.9< 5

< 140 N,J

< 170 N,J

< 78 N,J

< 5.2< 5.9

< 4.2< 6.8

< 4.2< 5.9

< 12< 4.3

< 5.2< 99 N

,J< 5.9

< 5< 140 N

,J< 170 N

,J< 78 N

,J< 5.2

< 5.9< 4.2

< 6.8< 4.2

< 5.9< 7.9

< 2.8< 3.5

< 66< 4

< 3.3< 94

< 110< 52

< 3.5< 4

< 2.8< 4.5

< 28< 4

< 3.6 U< 1.8 U

< 3.6 U< 1.8 U

< 1.8 U< 1.8 U

< 1.8 U< 3.6 U

< 1.8 U< 1.8 U

< 1.8 U< 7.6

< 2.7< 3.4

< 64< 3.8

< 3.2< 90

< 110< 50

< 3.4< 3.8

< 2.7< 4.4

< 27< 3.8

< 7.9< 2.8

< 3.5< 66

< 4< 3.3

< 94< 110

< 52< 3.5

< 4< 2.8

< 4.5< 28

< 4< 3.5 U

< 1.7 U< 3.5 U

< 1.7 U< 1.7 U

< 1.7 U< 1.7 U

< 3.5 U< 1.7 U

< 1.7 U< 1.7 U

17000 E630

< 121700

< 14860

14001800

15000< 12

< 1423

< 16550

< 14< 11

< 4.1< 5

< 95< 5.7

< 4.8< 140

< 160< 75

< 5< 5.7

< 4< 6.5

< 4< 5.7

< 11< 4

< 5< 94

< 5.6< 4.7

< 130< 160

< 74< 5

< 5.6< 3.9

< 6.4< 4

< 5.6< 12

7< 5.2

< 99< 5.9

5.1< 140

< 170100

< 5.2< 5.9

< 4.2< 6.8

< 4.2< 5.9

< 126.3

< 5.2< 99

< 5.9< 5

< 140< 170

100< 5.2

< 5.9< 4.2

< 6.8< 4.2

< 5.9< 8.3

< 3< 3.7

< 69< 4.2

< 3.5< 98

< 120< 55

< 3.7< 4.2

< 2.9< 4.7

< 2.9< 4.2

< 7.817

16220

4.59.3

< 92< 110

1304.2

< 3.98.8

< 4.4< 2.7

5.4< 7.9

< 2.8< 3.5

< 66< 3.9

< 3.3< 93

< 110< 52

< 3.5< 3.9

< 2.8< 4.5

< 2.8< 3.9

< 7.9< 2.8

< 3.5< 66

< 4< 3.3

< 94< 110

< 52< 3.5

< 4< 2.8

< 4.5< 2.8

< 4< 12

< 4.2< 5.2

< 98< 5.8

< 4.9< 140

< 160< 77

< 5.2< 5.8

< 4.1< 6.7

< 41< 5.8

< 12< 4.3

< 5.2< 99

< 5.9< 5

< 140< 170

< 78< 5.2

< 5.9< 4.2

< 6.8< 42

< 5.913

< 4.3< 5.2

< 99< 5.9

< 5< 140

< 170< 78

< 5.2< 5.9

< 4.2< 6.8

< 42< 5.9

< 12< 4.2

< 5.2< 98

< 5.8< 4.9

< 140< 160

< 77< 5.2

< 5.8< 4.1

< 6.7< 41

< 5.8< 12

< 4.1< 5.1

< 96< 5.8

< 4.8< 140

< 160< 76 PF

< 5.1< 5.8

< 4< 6.6

< 41< 5.8

< 13< 4.7

< 5.8< 110

< 6.6< 5.5

< 160< 190

< 87 PF< 5.8

< 6.6< 4.6

< 7.6< 47

< 6.6< 12

< 4.2< 5.1

< 97< 5.8

< 4.8< 140

< 160< 76 PF

< 5.1< 5.8

< 4.1< 6.6

< 41< 5.8

< 11< 4

< 5< 94 N

,J< 5.6

< 4.7< 130 N

,J< 160 U

J,N,J

< 74 N,J

< 56

< 3.9< 6.4

< 4< 5.6

< 12< 4.4

< 5.5< 100 N

,J< 6.2

< 5.2< 150 N

,J< 180 U

J,N,J

< 82 N,J

< 5.5< 6.2

< 4.4< 7.1

< 4.4< 6.2

< 12< 4.4

< 5.5< 100 N

,J< 6.2

< 5.2< 150 N

,J< 180 U

J,N,J

< 82 N,J

< 5.5< 6.2

< 4.4< 7.1

< 4.4< 6.2

< 13< 4.5

< 5.6< 100

< 6.3< 5.3

< 150< 180

< 83< 5.6

< 6.3< 4.4

< 7.2< 45

< 6.3< 11

< 4.1< 5

< 95< 5.7

< 4.8< 140

< 160< 75

< 5< 5.7

< 4< 6.5

< 40< 5.7

< 11< 4

< 5< 94

< 5.6< 4.7

< 130< 160

< 74< 5

< 5.6< 4

< 6.5< 40

< 5.6< 11

< 3.9< 4.8

< 91< 5.4

< 4.5< 130

< 150< 72

< 4.8< 5.4

< 3.8< 6.2

< 38< 5.4

< 11< 3.9

< 4.8< 91

< 5.5< 4.6

< 130< 160

< 72< 4.8

< 5.5< 3.8

< 6.3< 39

< 5.5< 11

< 4.1< 5

< 95< 5.7

< 4.7< 130

< 160< 75

< 5< 5.7

< 4< 6.5

< 40< 5.7

< 12< 4.4

< 5.4< 100

< 6.1< 5.1

< 140< 170

< 80< 5.4

< 6.1< 4.3

< 7< 43

< 6.1< 14

< 5.1< 6.3

< 120 N,J

< 7.1< 5.9

< 170 N,J

< 200 UJ

< 94 N,J

< 6.3< 7.1

< 5< 8.1

< 5< 7.1

< 12< 4.2

< 5.2< 98 N

,J< 5.9

< 4.9< 140 N

,J< 170 J,N

,UJ

< 77 N,J

< 5.2< 5.9

< 4.1< 6.7

< 4.2< 5.9

< 12< 4.3

< 5.2< 99

< 5.9< 5

< 140< 170

< 78< 5.2

< 5.9< 4.2

< 6.8< 4.2

< 5.9< 12

< 4.3< 5.2

< 99< 5.9

< 5< 140

< 170< 78

< 5.2< 5.9

< 4.2< 6.8

< 4.2< 5.9

Page 286: Table Proposed Cleanup Levels Groundwater · 10/21/2013  · Table 04 Summery of PrsllMnery Cost ES11motee for Soleening Feasibility Study Former Kest Property Carson, CA GeotFnlenGOneullanle

Table B-2Sub-Slab Soil Vapor Results

Former Kast Property

Carson, California

Residential Properties Sampled Through August 31, 2013

Page 54 of 235

Sample ID

AddressSam

ple Date

Sample Tim

eLocation

AnalyteU

nitsFrequency of D

etection

M24426SVF

24426 MARBELLA AVE

2011-10-0614:23

FrontM

24426SVB24426 M

ARBELLA AVE2011-10-06

14:53Back

M24426SVH

24426 MARBELLA AVE

2012-02-2314:59

HouseM

24426SVF24426 M

ARBELLA AVE2012-02-23

15:36Front

M24426SVFD

24426 MARBELLA AVE

2012-02-2315:36

FrontM

24426SVB24426 M

ARBELLA AVE2012-02-23

16:17Back

N24426SVB

24426 NEPTU

NE AVE

2009-09-1709:22

BackN

24426SVF24426 N

EPTUN

E AVE2009-09-17

10:19Front

N24426SVB

24426 NEPTU

NE AVE

2010-06-2515:03

BackN

24426SVH24426 N

EPTUN

E AVE2010-06-25

16:13House

N24426SVF

24426 NEPTU

NE AVE

2010-07-0710:03

FrontN

24426SVF24426 N

EPTUN

E AVE2010-09-15

09:27Front

N24426SVH

24426 NEPTU

NE AVE

2010-10-2914:46

HouseN

24426SVB24426 N

EPTUN

E AVE2010-10-29

15:02Back

N24426SVBD

24426 NEPTU

NE AVE

2010-10-2915:02

BackN

24426SVF24426 N

EPTUN

E AVE2010-10-29

15:31Front

N24426SVH

24426 NEPTU

NE AVE

2013-04-1914:46

HouseN

24426SVG24426 N

EPTUN

E AVE2013-04-19

15:14G

arageP24426SVH

24426 PANAM

A AVE2010-08-05

09:15House

P24426SVG24426 PAN

AMA AVE

2010-08-0510:08

Garage

P24426SVB24426 PAN

AMA AVE

2010-08-0510:47

BackP24426SVH

24426 PANAM

A AVE2012-12-06

09:54House

P24426SVG24426 PAN

AMA AVE

2012-12-0610:23

Garage

P24426SVGD

24426 PANAM

A AVE2012-12-06

10:23G

arageP24426SVB

24426 PANAM

A AVE2012-12-10

13:45Back

P24426SVH24426 PAN

AMA AVE

2013-06-1419:29

HouseP24426SVB

24426 PANAM

A AVE2013-06-14

19:31Back

P24426SVG24426 PAN

AMA AVE

2013-06-1420:05

Garage

R24426SVH24426 RAVEN

NA AVE

2010-06-2209:13

HouseR24426SVF

24426 RAVENN

A AVE2010-06-22

09:55Front

R24426SVB24426 RAVEN

NA AVE

2010-06-2210:45

BackR24426SVB

24426 RAVENN

A AVE2013-02-28

14:51Back

R24426SVBD24426 RAVEN

NA AVE

2013-02-2814:51

BackR24426SVH

24426 RAVENN

A AVE2013-02-28

14:57House

R24426SVF24426 RAVEN

NA AVE

2013-02-2815:36

FrontR24426SVH

24426 RAVENN

A AVE2013-07-17

14:50House

R24426SVB24426 RAVEN

NA AVE

2013-07-1714:55

BackR24426SVBD

24426 RAVENN

A AVE2013-07-17

14:55Back

R24426SVF24426 RAVEN

NA AVE

2013-07-1715:22

FrontM

24427SVH24427 M

ARBELLA AVE2010-05-26

10:10House

M24427SVB

24427 MARBELLA AVE

2010-05-2611:01

BackM

24427SVG24427 M

ARBELLA AVE2010-05-26

11:42G

arageM

24427SVG24427 M

ARBELLA AVE2012-04-06

10:19G

arageM

24427SVH24427 M

ARBELLA AVE2012-04-06

10:21House

M24427SVB

24427 MARBELLA AVE

2012-04-0610:57

BackM

24427SVBD24427 M

ARBELLA AVE2012-04-06

10:57Back

P24427SVB24427 PAN

AMA AVE

2010-06-0409:06

BackP24427SVF

24427 PANAM

A AVE2010-06-04

09:40Front

P24427SVH24427 PAN

AMA AVE

2010-06-0410:12

HouseP24427SVH

24427 PANAM

A AVE2013-05-24

15:00House

P24427SVB24427 PAN

AMA AVE

2013-05-2415:07

BackP24427SVF

24427 PANAM

A AVE2013-05-24

15:21Front

IsopropanolHexane

p/m-Xylene

C6-C8 Aliphatics

1,2,4-Trim

ethyl-benzene

HeptaneC8-C10

AliphaticsC10-C12

AliphaticsC5-C6

AliphaticsEthyl-

benzene

Cumene

(Isopropyl-benzene)

CyclohexaneFreon 11

Methylene

Chloride4-Ethyltoluene

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

4.47%3.74%

3.12%2.72%

2.63%2.63%

2.54%2.01%

2.01%1.97%

1.89%1.89%

1.72%1.72%

1.60%

< 12< 4.4

< 5.4< 100

< 6.1< 5.1

< 140< 170

< 80< 5.4

< 6.1< 4.2

< 6.9< 4.3

< 6.1< 11

< 4.1< 5

< 95< 5.7

< 4.8< 140

< 160< 75

< 5< 5.7

< 4< 6.5

< 4< 5.7

< 8.2< 3

< 3.6< 69

< 4.1< 3.4

< 98< 120

< 54< 3.6

< 4.1< 2.9

< 4.7< 2.9

< 4.1< 7.8

< 2.8< 3.4

< 655.7

< 3.2< 92

< 110< 51

< 3.4< 3.9

< 2.7< 4.4

< 2.7< 3.9

< 7.8< 2.8

< 3.4< 65

< 3.9< 3.2

< 92< 110

< 51< 3.4

< 3.9< 2.7

< 4.4< 2.7

< 3.9< 7.5

< 2.7< 3.3

< 62< 3.7

< 3.1< 88

< 100< 49

< 3.3< 3.7

< 2.6< 4.3

< 2.6< 3.7

< 11< 4

< 5< 94 N

,J< 5.6

< 4.7< 130 N

,J< 160 N

,J,UJ

< 74 N,J

< 56.5

< 4< 6.5

< 4< 5.6

< 11< 3.9

< 4.9< 92 N

,J< 5.5

< 4.6< 130 N

,J< 160 N

,J,UJ

< 72 N,J

< 4.911

< 3.8< 6.3

< 3.9< 5.5

< 11< 4

< 5< 94 N

,J< 5.6

< 4.7< 130 N

,J< 160 N

,J< 74 N

,J< 5

< 5.6< 4

< 6.5< 4

< 5.6< 12

< 4.2< 5.1

< 97 N,J

< 5.8< 4.8

< 140 N,J

< 160 N,J

< 77 N,J

< 5.1< 5.8

< 4.1< 6.6

< 4.1< 5.8

19< 4.1

< 5< 95 N

,J< 5.7

< 4.8< 140 N

,J< 160 N

,J< 75 N

,J< 5

< 5.7< 4

< 6.5< 4

< 5.7< 12

< 4.3< 5.2

< 99< 5.9

< 5< 140

< 170< 78

< 5.2< 5.9

< 4.2< 6.8

< 4.2< 5.9

< 11< 4

< 4.9< 93

< 5.6< 4.6

< 130< 160

< 73< 4.9

< 5.6< 3.9

< 6.3< 3.9

< 5.6< 11

< 4.1< 5

< 95< 5.7

< 4.7< 130

< 160< 75

< 5< 5.7

< 4< 6.5

< 4< 5.7

< 11< 4.1

< 5< 95

< 5.7< 4.7

< 130< 160

< 75< 5

< 5.7< 4

< 6.55

< 5.7< 11

< 4.1< 5

< 95< 5.7

< 4.7< 130

< 160< 75

< 5< 5.7

< 4< 6.5

< 4< 5.7

< 12< 4.2

< 5.2< 98

< 5.9< 4.9

< 140< 170

< 78 PF< 5.2

< 5.9< 4.1

< 6.7< 42

< 5.9< 12

< 4.3< 5.3

< 100< 6

< 5< 140

< 170< 79 PF

< 5.3< 6

< 4.2< 6.8

< 42< 6

< 12< 4.3

< 5.2< 99 N

,J< 5.9

6.8< 140 N

,J< 170 N

,J< 78 N

,J< 5.2

< 5.9< 4.2

< 6.8< 4.2

< 5.9< 11

< 4< 5

< 94 N,J

< 5.6< 4.7

< 130 N,J

< 160 N,J

< 74 N,J

< 5< 5.6

< 3.9< 6.4

4.5< 5.6

< 11< 4.1

< 5< 95 N

,J< 5.7

< 4.8< 140 N

,J< 160 N

,J< 75 N

,J< 5

< 5.7< 4

< 6.5< 4

< 5.7< 12

12< 5.2

< 99< 5.9

< 5< 140

< 170< 78

< 5.2< 5.9

< 4.2< 6.8

< 42< 5.9

< 12< 4.3

< 5.2< 99

< 5.9< 5

< 140< 170

< 78< 5.2

< 5.9< 4.2

< 6.8< 42

< 5.9< 12

5.3< 5.2

< 99< 5.9

< 5< 140

< 170< 78

< 5.2< 5.9

< 4.2< 6.8

< 42< 5.9

< 11< 4

< 5< 94

< 5.6< 4.7

< 130< 160

< 74< 5

< 5.6< 3.9

< 6.4< 40

< 5.6< 12

< 4.3< 5.3

< 100< 6

< 5< 140

< 170< 79

< 5.3< 6

< 4.2< 6.8

< 42< 6

< 11< 4

< 5< 93

< 5.6< 4.7

< 130< 160

< 74< 4.9

< 5.6< 3.9

< 6.4< 40

< 5.6< 11

< 4< 4.9

< 93< 5.6

< 4.6< 130

< 160< 73

< 4.9< 5.6

< 3.9< 6.4

< 39< 5.6

< 11< 4.1

< 5< 95 N

,J< 5.7

< 4.8< 140 N

,J< 160 N

,J< 75 N

,J< 5

< 5.7< 4

< 6.5< 4

< 5.7< 12

< 4.4< 5.4

< 100 N,J

< 6.1< 5.1

< 140 N,J

< 170 N,J

< 80 N,J

< 5.4< 6.1

< 4.3< 7

< 4.3< 6.1

< 11< 4.1

19< 95 N

,J22

< 4.8< 140 N

,J< 160 N

,J< 75 N

,J5.6

< 5.7< 4

< 6.5< 4

15< 11

< 4< 5

< 94< 5.6

< 4.7< 130

< 160< 74

< 5< 5.6

< 3.9< 6.4

< 40< 5.6

< 11< 4.1

< 5< 95

< 5.7< 4.8

< 140< 160

< 75< 5

< 5.7< 4

< 6.5< 40

< 5.7< 11

< 4.1< 5

< 95< 5.7

< 4.8< 140

< 160< 75

< 5< 5.7

< 4< 6.5

< 40< 5.7

< 12< 4.4

< 5.5< 100

< 6.2< 5.2

< 150< 180

< 82< 5.5

< 6.2< 4.3

< 7.1< 44

< 6.2< 11

< 4< 4.9

< 93< 5.6

< 4.6< 130

< 160< 73

< 4.9< 5.6

< 3.9< 6.3

< 39< 5.6

< 12< 4.3

< 5.3< 100

< 6< 5

< 140< 170

< 80< 5.3

< 6< 4.2

< 6.9< 43

< 6< 12

< 4.5< 5.5

< 100< 6.2

< 5.2< 150

< 180< 82

< 5.5< 6.2

< 4.4< 7.1

< 44< 6.2

< 12< 4.2

< 5.1< 97

< 5.8< 4.8

< 140< 160

< 76< 5.1

< 5.8< 4.1

< 6.6< 41

< 5.8< 11

< 4.1< 5

< 95 N,J

< 5.7< 4.8

< 140 N,J

< 160 N,J

< 75 N,J

< 5< 5.7

< 4< 6.5

< 4< 5.7

< 12< 4.3

< 5.2< 99 N

,J< 5.9

< 5< 140 N

,J< 170 N

,J< 78 N

,J< 5.2

< 5.9< 4.2

< 6.8< 4.2

< 5.9< 11

< 4.1< 5

< 95 N,J

< 5.7< 4.8

< 140 N,J

< 160 N,J

< 75 N,J

< 5< 5.7

< 4< 6.5

< 4< 5.7

< 7.6< 2.7

< 3.4< 64

< 3.8< 3.2

< 90< 110

< 50< 3.4

< 3.8< 2.7

< 4.4< 27

< 3.8< 7.3

< 2.6< 3.2

< 61< 3.7

< 3< 87

< 100< 48

< 3.2< 3.7

< 2.6< 4.2

< 26< 3.7

< 7.5< 2.7

< 3.3< 62

< 3.7< 3.1

< 88< 100

< 49< 3.3

< 3.7< 2.6

< 4.3< 26

< 3.7< 7.5

< 2.7< 3.3

< 62< 3.7

< 3.1< 88

< 100< 49

< 3.3< 3.7

< 2.6< 4.3

< 26< 3.7

< 11< 4

< 5< 94 N

,J< 5.6

< 4.7< 130 N

,J< 160 N

,J< 74 N

,J< 5

< 5.6< 3.9

< 6.4< 4

< 5.6< 11

< 3.9< 4.9

< 92 N,J

< 5.5< 4.6

< 130 N,J

< 160 N,J

< 72 N,J

< 4.9< 5.5

< 3.8< 6.3

< 3.9< 5.5

< 11< 4.1

< 5< 95 N

,J< 5.7

< 4.8< 140 N

,J< 160 N

,J< 75 N

,J< 5

< 5.7< 4

< 6.5< 4

< 5.7< 12

< 4.2< 5.2

< 98< 5.9

< 4.9< 140

< 170< 77

< 5.2< 5.9

< 4.1< 6.7

< 42< 5.9

< 12< 4.3

< 5.3< 100

< 6< 5

< 140< 170

< 79< 5.3

< 6< 4.2

< 6.9< 42

< 6< 11

< 4.1< 5

< 95< 5.7

< 4.8< 140

< 160< 75

< 5< 5.7

< 4< 6.5

< 40< 5.7

Page 287: Table Proposed Cleanup Levels Groundwater · 10/21/2013  · Table 04 Summery of PrsllMnery Cost ES11motee for Soleening Feasibility Study Former Kest Property Carson, CA GeotFnlenGOneullanle

Table B-2Sub-Slab Soil Vapor Results

Former Kast Property

Carson, California

Residential Properties Sampled Through August 31, 2013

Page 55 of 235

Sample ID

AddressSam

ple Date

Sample Tim

eLocation

AnalyteU

nitsFrequency of D

etection

N24429SVB

24429 NEPTU

NE AVE

2010-04-3000:00

BackN

24429SVH24429 N

EPTUN

E AVE2010-04-30

13:27House

N24429SVF

24429 NEPTU

NE AVE

2010-04-3014:40

FrontN

24429SVB24429 N

EPTUN

E AVE2011-01-14

15:08Back

N24429SVF

24429 NEPTU

NE AVE

2011-01-1415:34

FrontN

24429SVH24429 N

EPTUN

E AVE2011-01-14

16:00House

N24429SVH

24429 NEPTU

NE AVE

2013-08-0709:47

HouseN

24429SVF24429 N

EPTUN

E AVE2013-08-07

10:09Front

N24429SVFS

24429 NEPTU

NE AVE

2013-08-0710:09

FrontN

24429SVB24429 N

EPTUN

E AVE2013-08-07

10:26Back

R24429SVG24429 RAVEN

NA AVE

2010-09-1713:46

Garage

R24429SVH24429 RAVEN

NA AVE

2010-10-1410:17

HouseR24429SVB

24429 RAVENN

A AVE2010-10-14

11:26Back

R24429SVB24429 RAVEN

NA AVE

2013-07-3010:04

BackR24429SVBD

24429 RAVENN

A AVE2013-07-30

10:04Back

R24429SVH24429 RAVEN

NA AVE

2013-07-3010:09

HouseR24429SVG

24429 RAVENN

A AVE2013-07-30

10:36G

arageP24430SVB

24430 PANAM

A AVE2009-10-01

09:28Back

P24430SVBD24430 PAN

AMA AVE

2009-10-0109:28

BackP24430SVF

24430 PANAM

A AVE2009-10-01

10:54Front

P24430SVH24430 PAN

AMA AVE

2010-06-1409:42

HouseP24430SVB

24430 PANAM

A AVE2010-06-14

10:48Back

P24430SVF24430 PAN

AMA AVE

2010-06-1411:46

FrontP24430SVF

24430 PANAM

A AVE2012-11-30

15:16Front

P24430SVHA24430 PAN

AMA AVE

2013-05-0715:25

HouseP24430SVB

24430 PANAM

A AVE2013-05-07

15:31Back

P24430SVF24430 PAN

AMA AVE

2013-05-0715:56

FrontP24431SVF

24431 PANAM

A AVE2010-09-20

09:59Front

P24431SVFD24431 PAN

AMA AVE

2010-09-2009:59

FrontP24431SVB

24431 PANAM

A AVE2010-09-20

11:22Back

P24431SVH224431 PAN

AMA AVE

2010-10-1314:31

HouseP24431SVB

24431 PANAM

A AVE2013-01-17

10:12Back

P24431SVH224431 PAN

AMA AVE

2013-01-1710:12

HouseP24431SVF

24431 PANAM

A AVE2013-01-17

10:43Front

P24431SVB24431 PAN

AMA AVE

2013-05-2909:47

BackP24431SVBD

24431 PANAM

A AVE2013-05-29

09:47Back

P24431SVH224431 PAN

AMA AVE

2013-05-2909:48

HouseP24431SVF

24431 PANAM

A AVE2013-05-29

10:21Front

M24432SVH

24432 MARBELLA AVE

2010-11-0109:18

HouseM

24432SVF24432 M

ARBELLA AVE2010-11-01

09:53Front

M24432SVB

24432 MARBELLA AVE

2010-11-0110:38

BackM

24432SVH24432 M

ARBELLA AVE2011-01-27

14:09House

M24432SVB

24432 MARBELLA AVE

2011-01-2714:55

BackM

24432SVF24432 M

ARBELLA AVE2011-01-27

15:34Front

M24432SVH

24432 MARBELLA AVE

2012-03-1610:24

HouseM

24432SVF24432 M

ARBELLA AVE2012-03-16

11:04Front

M24432SVB

24432 MARBELLA AVE

2012-03-1611:28

BackM

24432SVBD24432 M

ARBELLA AVE2012-03-16

11:28Back

M24433SVB

24433 MARBELLA AVE

2009-09-1613:05

BackM

24433SVF24433 M

ARBELLA AVE2009-09-16

14:14Front

M24433SVB2

24433 MARBELLA AVE

2009-09-1815:39

BackM

24433SVH24433 M

ARBELLA AVE2011-02-14

13:51House

IsopropanolHexane

p/m-Xylene

C6-C8 Aliphatics

1,2,4-Trim

ethyl-benzene

HeptaneC8-C10

AliphaticsC10-C12

AliphaticsC5-C6

AliphaticsEthyl-

benzene

Cumene

(Isopropyl-benzene)

CyclohexaneFreon 11

Methylene

Chloride4-Ethyltoluene

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

4.47%3.74%

3.12%2.72%

2.63%2.63%

2.54%2.01%

2.01%1.97%

1.89%1.89%

1.72%1.72%

1.60%

< 12< 4.2

< 5.1< 97 N

,J6.2

< 4.8< 140 N

,J< 160 N

,J< 77 N

,J< 5.1

< 5.8< 4.1

< 6.6< 4.1

< 5.8< 12

< 4.1< 5.1

< 96 N,J

< 5.8< 4.8

< 140 N,J

< 160 N,J

< 76 N,J

< 5.1< 5.8

< 4< 6.6

< 4.1< 5.8

< 12< 4.2

< 5.2< 98 N

,J< 5.9

< 4.9< 140 N

,J< 170 N

,J< 77 N

,J< 5.2

< 5.9< 4.1

< 6.7< 4.2

< 5.935

< 3.54.5

< 82< 4.9

< 4.1< 120

< 14099

< 4.3< 4.9

< 3.4< 5.6

4.6< 4.9

< 11< 4

< 5< 94

< 5.6< 4.7

< 130< 160

< 74< 5

< 5.6< 3.9

< 6.4< 4

< 5.6< 11

< 4.1< 5

< 95< 5.7

< 4.8< 140

< 160< 75

< 5< 5.7

< 4< 6.5

< 4< 5.7

< 12< 4.1

< 5.1< 96

< 5.8< 4.8

< 140< 160

< 76< 5.1

< 5.8< 4

< 6.6< 41

< 5.8< 12

< 4.3< 5.3

< 100< 6

< 5< 140

< 170< 79

< 5.3< 6

< 4.2< 6.8

< 42< 6

< 20 U< 2 U

< 4.1 U< 2 U

< 2 U< 2 U

< 2 U< 4.1 U

< 2 U< 2 U

< 2 U< 11

< 3.9< 4.8

< 91< 5.5

< 4.6< 130

< 160< 72

< 4.8< 5.5

< 3.8< 6.3

< 39< 5.5

< 11< 4

< 5< 93

< 5.6< 4.7

< 130< 160

< 74< 4.9

< 5.6< 3.9

< 6.4< 4

< 5.6< 13

< 4.7< 5.8

< 110< 6.5

< 5.4< 150

< 180< 86

< 5.8< 6.5

< 4.6< 7.5

< 4.6< 6.5

< 12< 4.3

< 5.2< 99

< 5.9< 5

< 140< 170

< 78< 5.2

< 5.9< 4.2

< 6.8< 4.2

< 5.9< 12

< 4.3< 5.2

< 99< 5.9

< 5< 140

< 170< 78

< 5.2< 5.9

< 4.2< 6.8

< 42< 5.9

< 12< 4.4

< 5.4< 100

< 6.1< 5.1

< 140< 170

< 80< 5.4

< 6.1< 4.2

< 6.9< 43

< 6.1< 11

< 4.1< 5

< 95< 5.7

< 4.8< 140

< 160< 75

< 5< 5.7

< 4< 6.5

< 40< 5.7

< 11< 4.1

< 5< 95

< 5.7< 4.8

< 140< 160

< 75< 5

< 5.7< 4

8.3< 40

< 5.7< 14

< 5.1< 6.3

< 120 N,J

< 7.2< 6

< 170 N,J

260 N,J

< 94 N,J

< 6.3< 7.2

< 5< 8.2

< 5< 7.2

< 14< 5

19< 120 N

,J< 7

< 5.9< 170 N

,J< 200 N

,J< 92 N

,J< 6.2

< 7< 4.9

< 8< 5

< 7< 11

< 4< 5

< 93 N,J

< 5.6< 4.7

150 N,J

760 N,J

< 74 N,J

< 4.9< 5.6

< 3.9< 6.4

< 4< 5.6

18< 4.3

< 5.2< 99 N

,J< 5.9

< 5< 140 N

,J< 170 N

,J< 78 N

,J< 5.2

< 5.9< 4.2

< 6.8< 4.2

< 5.9< 12

< 4.1< 5.1

< 96 N,J

< 5.8< 4.8

< 140 N,J

< 160 N,J

< 76 N,J

< 5.1< 5.8

< 4< 6.6

< 4.1< 5.8

< 11< 4.1

< 5< 95 N

,J< 5.7

< 4.8< 140 N

,J< 160 N

,J< 75 N

,J< 5

< 5.7< 4

< 6.5< 4

< 5.7< 11

< 3.9< 4.9

< 92< 5.5

< 4.6< 130

< 160< 72

< 4.9< 5.5

< 3.8< 6.3

< 39< 5.5

< 12< 4.4

< 5.4< 100

< 6.2< 5.1

< 150< 170

< 81< 5.4

< 6.2< 4.3

< 7< 44

< 6.2< 12

< 4.4< 5.4

< 100< 6.1

< 5.1< 140

< 170< 80

< 5.4< 6.1

< 4.3< 7

< 43< 6.1

< 12< 4.2

< 5.2< 99

< 5.9< 4.9

< 140< 170

< 78< 5.2

< 5.9< 4.1

< 6.8< 42

< 5.9< 13

< 4.5< 5.6

< 100< 6.3

< 5.3< 150

< 180< 84

< 5.6< 6.3

< 4.4< 7.2

< 4.5< 6.3

< 13< 4.5

< 5.6< 100

< 6.3< 5.3

< 150< 180

< 84< 5.6

< 6.3< 4.4

< 7.2< 4.5

< 6.3< 11

< 4.1< 5

< 95< 5.7

< 4.8< 140

< 160< 75

< 5< 5.7

< 4< 6.5

< 4< 5.7

< 12< 4.1

21< 96

6.1< 4.8

< 140< 160

< 76< 5.1

< 5.8< 4

< 6.6< 4.1

< 5.8< 11

< 4< 5

< 93< 5.6

< 4.7< 130

< 160< 74

< 4.9< 5.6

< 3.9< 6.4

< 40< 5.6

< 11< 3.9

< 4.8< 90

< 5.4< 4.5

< 130< 150

< 72< 4.8

< 5.4< 3.8

< 6.2< 38

< 5.4< 12

< 4.3< 5.3

< 100< 6

< 5< 140

< 170< 80

< 5.3< 6

< 4.2< 6.9

< 43< 6

< 11< 4

< 4.9< 93

< 5.6< 4.6

< 130< 160

< 73< 4.9

< 5.6< 3.9

< 6.4< 39

< 5.6< 11

< 3.8< 4.8

< 90< 5.4

< 4.5< 130

< 150< 71

< 4.8< 5.4

< 3.8< 6.2

< 38< 5.4

< 12< 4.2

< 5.1< 97

< 5.8< 4.8

< 140< 160

< 76< 5.1

< 5.8< 4.1

< 6.6< 41

< 5.8< 12

< 4.1< 5.1

< 96< 5.8

< 4.8< 140

< 160< 76

< 5.1< 5.8

< 4< 6.6

< 41< 5.8

< 12< 4.2

< 5.1< 97

< 5.8< 4.8

< 140< 160

< 77< 5.1

< 5.8< 4.1

< 6.6< 4.1

< 5.8< 12

< 4.3< 5.2

< 99< 5.9

< 5< 140

< 170< 78

< 5.2< 5.9

< 4.2< 6.8

< 4.2< 5.9

< 11< 4.1

< 5< 95

< 5.7< 4.8

< 140< 160

< 75< 5

< 5.7< 4

< 6.5< 4

< 5.7< 11

< 4.1< 5

< 95< 5.7

< 4.8< 140

< 160< 75

< 5< 5.7

< 4< 6.5

< 4< 5.7

< 11< 3.9

< 4.8< 91

< 5.5< 4.6

< 130< 160

< 72< 4.8

< 5.5< 3.8

< 6.3< 3.9

< 5.5< 11

< 3.919

< 92< 5.5

< 4.6< 130

< 160< 72

< 4.9< 5.5

< 3.8< 6.3

< 3.9< 5.5

< 7.8< 2.8

< 3.4< 65

< 3.9< 3.2

< 92< 110

< 51< 3.4

< 3.9< 2.7

< 4.4< 27

< 3.9< 7.1

< 2.5< 3.1

< 59< 3.5

< 3< 84

< 100< 47

< 3.1< 3.5

< 2.5< 4

< 25< 3.5

12< 2.7

< 3.3< 62

< 3.7< 3.1

< 88< 100

< 49< 3.3

< 3.7< 2.6

< 4.3< 26

< 3.7< 7.5

< 2.7< 3.3

< 62< 3.7

< 3.1< 88

< 100< 49

< 3.3< 3.7

< 2.6< 4.3

< 26< 3.7

< 11< 4

< 4.9< 93 N

,J< 5.6

< 4.6< 130 N

,J< 160 N

,J< 73 N

,J< 4.9

9< 3.9

< 6.3< 3.9

< 5.6< 10

< 3.7< 4.5

< 86 N,J

< 5.1< 4.3

< 120 N,J

< 140 N,J

< 68 N,J

< 4.513

< 3.6< 5.9

< 3.6< 5.1

< 14< 5.1

87< 120 N

,J200

< 5.9< 170 N

,J< 200 U

J,N,J

< 94 N,J

1012

< 5< 8.1

< 5230

< 12< 4.1

< 5.1< 96

< 5.8< 4.8

< 140< 160

< 76< 5.1

< 5.8< 4

< 6.6< 4.1

< 5.8

Page 288: Table Proposed Cleanup Levels Groundwater · 10/21/2013  · Table 04 Summery of PrsllMnery Cost ES11motee for Soleening Feasibility Study Former Kest Property Carson, CA GeotFnlenGOneullanle

Table B-2Sub-Slab Soil Vapor Results

Former Kast Property

Carson, California

Residential Properties Sampled Through August 31, 2013

Page 56 of 235

Sample ID

AddressSam

ple Date

Sample Tim

eLocation

AnalyteU

nitsFrequency of D

etection

M24433SVB2

24433 MARBELLA AVE

2011-02-1414:11

BackM

24433SVB24433 M

ARBELLA AVE2011-02-14

14:29Back

M24433SVBD

24433 MARBELLA AVE

2011-02-1414:29

BackM

24433SVF24433 M

ARBELLA AVE2011-02-14

14:57Front

M24433SVF

24433 MARBELLA AVE

2012-03-0215:00

FrontM

24433SVFD24433 M

ARBELLA AVE2012-03-02

15:00Front

M24433SVH

24433 MARBELLA AVE

2012-03-0215:13

HouseM

24433SVB24433 M

ARBELLA AVE2012-03-02

15:46Back

M24433SVB2

24433 MARBELLA AVE

2012-03-0215:48

BackP24436SVH

24436 PANAM

A AVE2010-06-24

09:51House

P24436SVF24436 PAN

AMA AVE

2010-06-2411:55

FrontP24436SVHA

24436 PANAM

A AVE2012-06-28

09:55House

P24436SVF24436 PAN

AMA AVE

2012-06-2810:03

FrontP24436SVFS

24436 PANAM

A AVE2012-06-28

10:03Front

P24436SVBA24436 PAN

AMA AVE

2012-06-2810:39

BackP24436SVBAS

24436 PANAM

A AVE2012-06-28

10:39Back

M24502SVH

24502 MARBELLA AVE

2010-09-2009:49

HouseM

24502SVG24502 M

ARBELLA AVE2010-09-20

10:39G

arageM

24502SVB24502 M

ARBELLA AVE2010-09-20

11:20Back

M24502SVG

24502 MARBELLA AVE

2012-05-0414:34

Garage

M24502SVG

D24502 M

ARBELLA AVE2012-05-04

14:34G

arageM

24502SVH24502 M

ARBELLA AVE2012-05-04

14:56House

M24502SVB

24502 MARBELLA AVE

2012-05-0415:13

BackM

24502SVH24502 M

ARBELLA AVE2013-08-16

09:53House

M24502SVB

24502 MARBELLA AVE

2013-08-1610:17

BackM

24502SVBS24502 M

ARBELLA AVE2013-08-16

10:17Back

M24502SVG

24502 MARBELLA AVE

2013-08-1610:25

Garage

N24502SVB

24502 NEPTU

NE AVE

2009-09-2312:48

BackN

24502SVF24502 N

EPTUN

E AVE2009-09-23

13:59Front

N24502SVH

24502 NEPTU

NE AVE

2011-02-1709:25

HouseN

24502SVF24502 N

EPTUN

E AVE2011-02-17

10:12Front

N24502SVFD

24502 NEPTU

NE AVE

2011-02-1710:12

FrontN

24502SVB24502 N

EPTUN

E AVE2011-02-17

10:59Back

N24502SVH

24502 NEPTU

NE AVE

2013-01-2514:55

HouseN

24502SVF24502 N

EPTUN

E AVE2013-01-25

15:00Front

N24502SVFD

24502 NEPTU

NE AVE

2013-01-2515:00

FrontN

24502SVB24502 N

EPTUN

E AVE2013-07-12

09:39Back

N24502SVBD

24502 NEPTU

NE AVE

2013-07-1209:39

BackN

24502SVH24502 N

EPTUN

E AVE2013-07-12

09:41House

N24502SVF

24502 NEPTU

NE AVE

2013-07-1210:08

FrontP24502SVB

24502 PANAM

A AVE2009-09-25

09:24Back

P24502SVF24502 PAN

AMA AVE

2009-09-2510:26

FrontP24502SVF

24502 PANAM

A AVE2010-06-01

10:06Front

P24502SVB24502 PAN

AMA AVE

2010-06-0111:14

BackP24502SVBD

24502 PANAM

A AVE2010-06-01

11:14Back

P24502SVH224502 PAN

AMA AVE

2010-09-0208:52

HouseP24502SVH2

24502 PANAM

A AVE2013-01-18

10:09House

P24502SVF24502 PAN

AMA AVE

2013-01-1810:19

FrontP24502SVFD

24502 PANAM

A AVE2013-01-18

10:19Front

P24502SVB24502 PAN

AMA AVE

2013-01-1810:45

BackR24502SVB

24502 RAVENN

A AVE2010-04-22

10:39Back

R24502SVF24502 RAVEN

NA AVE

2010-04-2212:16

Front

IsopropanolHexane

p/m-Xylene

C6-C8 Aliphatics

1,2,4-Trim

ethyl-benzene

HeptaneC8-C10

AliphaticsC10-C12

AliphaticsC5-C6

AliphaticsEthyl-

benzene

Cumene

(Isopropyl-benzene)

CyclohexaneFreon 11

Methylene

Chloride4-Ethyltoluene

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

4.47%3.74%

3.12%2.72%

2.63%2.63%

2.54%2.01%

2.01%1.97%

1.89%1.89%

1.72%1.72%

1.60%

< 12< 4.3

< 5.3< 100

< 6< 5

< 140< 170

< 80< 5.3

< 6< 4.2

< 6.9< 4.3

< 6< 12

< 4.3< 5.2

< 99< 5.9

< 5< 140

< 170< 78

< 5.2< 5.9

< 4.2< 6.8

< 4.2< 5.9

< 12< 4.3

< 5.2< 99

< 5.9< 5

< 140< 170

< 78< 5.2

< 5.9< 4.2

< 6.8< 4.2

< 5.9< 12

< 4.2< 5.1

< 97< 5.8

< 4.8< 140

< 160< 77

< 5.1< 5.8

< 4.1< 6.6

< 4.1< 5.8

< 8.1< 2.9

< 3.6< 68

< 4< 3.4

< 96< 110

< 53< 3.6

< 4< 2.8

< 4.6< 29

< 4< 8.2

< 2.9< 3.6

< 68< 4.1

< 3.4< 97

< 120< 54

< 3.6< 4.1

< 2.8< 4.7

< 29< 4.1

9.3< 3.2

< 3.9< 73

< 4.43.7

< 100< 120

< 58< 3.9

< 4.4< 3.1

< 5< 31

< 4.4< 8.4

< 3< 3.7

< 70< 4.2

< 3.5< 99

< 120< 55

< 3.7< 4.2

< 2.9< 4.8

< 30< 4.2

< 8.7< 3.1

< 3.8< 72

< 4.4< 3.6

< 100< 120

< 57< 3.8

< 4.4< 3

< 5< 31

< 4.4< 12

< 4.2< 5.1

< 97 N,J

< 5.8< 4.8

< 140 N,J

< 160 N,J

< 77 N,J

< 5.1< 5.8

< 4.1< 6.6

< 4.1< 5.8

< 11< 4

< 5< 94 N

,J< 5.6

< 4.7< 130 N

,J< 160 N

,J< 74 N

,J< 5

< 5.6< 4

< 6.5< 4

< 5.6< 7.9

< 2.8< 3.5

< 66< 4

< 3.3< 94

< 110< 52

< 3.5< 4

< 2.8< 4.5

< 28< 4

< 7.9< 2.8

< 3.5< 66

< 4< 3.3

< 94< 110

< 52< 3.5

< 4< 2.8

< 4.5< 28

< 4< 18 U

< 1.8 U< 3.5 U

< 1.8 U< 1.8 U

< 1.8 U< 1.8 U

< 3.5 U1.8

< 1.8 U< 1.8 U

< 8.2< 3

< 3.6< 69

< 4.1< 3.4

< 98< 120

< 54< 3.6

< 4.1< 2.9

< 4.7< 29

< 4.1< 19 U

< 1.9 U< 3.9 U

< 1.9 U< 1.9 U

< 1.9 U< 1.9 U

< 3.9 U< 1.9 U

< 1.9 U< 1.9 U

< 10< 3.7

< 4.5< 86

< 5.1< 4.3

< 120< 140

< 68< 4.5

< 5.1< 3.6

< 5.9< 3.6

< 5.1< 11

< 4.1< 5

< 95< 5.7

< 4.8< 140

< 160< 75

< 5< 5.7

< 4< 6.5

< 4< 5.7

< 12< 4.2

< 5.2< 98

< 5.8< 4.9

< 140< 160

< 77< 5.2

< 5.8< 4.1

< 6.7< 4.1

< 5.8< 8.6

< 3.1< 3.8

< 72< 4.3

< 3.6< 100

< 120< 57

< 3.8< 4.3

< 3< 4.9

< 30< 4.3

< 8.6< 3.1

< 3.8< 72

< 4.3< 3.6

< 100< 120

< 57< 3.8

< 4.3< 3

< 4.9< 30

< 4.3< 7.3

< 2.6< 3.2

< 61< 3.7

< 3< 87

< 100< 48

< 3.2< 3.7

< 2.6< 4.2

< 26< 3.7

< 7.6< 2.7

< 3.4< 64

< 3.83.6

< 90< 110

< 50< 3.4

< 3.8< 2.7

< 4.4< 27

< 3.8< 11

< 4< 4.9

< 92< 5.5

< 4.6< 130

< 160< 73

< 4.9< 5.5

< 3.9< 6.3

< 39< 5.5

< 12< 4.4

< 5.4< 100

< 6.1< 5.1

< 140< 170

< 81< 5.4

< 6.1< 4.3

< 7< 43

< 6.1< 21 U

< 2.1 U< 4.2 U

< 2.1 U< 2.1 U

< 2.1 U< 2.1 U

< 4.2 U< 2.1 U

< 2.1 U< 2.1 U

< 12< 4.2

< 5.1< 97

< 5.8< 4.8

< 140< 160

< 76< 5.1

< 5.8< 4.1

< 6.6< 41

< 5.8< 12

< 4.4< 5.4

< 100 N,J

< 6.1< 5.1

< 140 N,J

< 170 UJ,N

,J< 80 N

,J< 5.4

< 6.1< 4.3

< 7< 4.3

< 6.1< 12

< 4.112

< 96 N,J

10< 4.8

< 140 N,J

< 160 UJ,N

,J< 76 N

,J< 5.1

< 5.8< 4

< 6.6< 4.1

7.3< 11

< 4< 5

< 94< 5.6

< 4.7< 130

< 160< 74

< 5< 5.6

< 4< 6.5

< 4< 5.6

< 12< 4.1

< 5.1< 96

< 5.85.9

< 140< 160

< 76< 5.1

< 5.8< 4

< 6.6< 4.1

< 5.8< 12

< 4.1< 5.1

< 96< 5.8

< 4.8< 140

< 160< 76

< 5.1< 5.8

< 4< 6.6

< 4.1< 5.8

< 11< 4

< 5< 94

< 5.6< 4.7

< 130< 160

< 74< 5

< 5.6< 4

< 6.5< 4

< 5.6< 11

< 4.1< 5

< 95< 5.7

< 4.8< 140

< 160< 75

< 5< 5.7

< 4< 6.5

< 40< 5.7

< 12< 4.4

< 5.4< 100

< 6.1< 5.1

< 140< 170

< 80< 5.4

< 6.1< 4.2

< 6.9< 43

< 6.1< 12

< 4.4< 5.4

< 100< 6.1

< 5.1< 140

< 170< 80

< 5.4< 6.1

< 4.2< 6.9

< 43< 6.1

< 12< 4.4

< 5.4< 100

< 6.1< 5.1

< 140< 170

< 80< 5.4

< 6.1< 4.3

< 7< 43

< 6.1< 12

< 4.3< 5.2

< 99< 5.9

< 5< 140

< 170< 78

< 5.2< 5.9

< 4.2< 6.8

< 42< 5.9

< 11< 4

< 5< 94

< 5.6< 4.7

< 130< 160

< 74< 5

< 5.6< 3.9

< 6.4< 40

< 5.6< 12

< 4.3< 5.3

< 100< 6

< 5< 140

< 170< 80

< 5.3< 6

< 4.2< 6.9

< 43< 6

< 12< 4.1

26< 96 N

,J17

< 4.8< 140 N

,J< 160 N

,J< 76 N

,J< 5.1

< 5.8< 4

< 6.6< 4.1

6.9< 11

< 4.1< 5

< 95 N,J

7.3< 4.7

< 130 N,J

< 160 N,J

< 75 N,J

< 5< 5.7

< 4< 6.5

< 4< 5.7

< 11< 4.1

< 5< 95 N

,J< 5.7

< 4.7< 130 N

,J< 160 N

,J< 75 N

,J< 5

< 5.7< 4

< 6.5< 4

< 5.7< 12

< 4.3< 5.2

< 99 N,J

< 5.9< 5

< 140 N,J

< 170 N,J

< 78 N,J

< 5.2< 5.9

< 4.2< 6.8

< 4.2< 5.9

< 12< 4.3

< 5.2< 99 N

,J< 5.9

< 5< 140 N

,J< 170 N

,J< 78 N

,J< 5.2

< 5.9< 4.2

< 6.8< 4.2

< 5.9< 12

< 4.1< 5.1

< 96< 5.8

< 4.8< 140

< 160< 76

< 5.1< 5.8

< 4< 6.6

< 4.1< 5.8

< 11< 3.9

< 4.9< 92

< 5.5< 4.6

< 130< 160

< 72< 4.9

< 5.5< 3.8

< 6.3< 39

< 5.5< 12

< 4.2< 5.2

< 98< 5.8

< 4.9< 140

< 160< 77

< 5.2< 5.8

< 4.1< 6.7

< 41< 5.8

< 12< 4.2

< 5.2< 98

< 5.8< 4.9

< 140< 160

< 77< 5.2

< 5.8< 4.1

< 6.7< 41

< 5.8< 11

< 4.1< 5

< 95< 5.7

< 4.8< 140

< 160< 75

< 5< 5.7

< 4< 6.5

< 40< 5.7

< 11< 4.1

< 5< 95 N

,J< 5.7

< 4.8< 140 N

,J< 160 N

,J< 75 N

,J< 5

< 5.7< 4

< 6.5< 4

< 5.7< 12

< 4.3< 5.2

170 N,J

< 5.9< 5

< 140 N,J

< 170 N,J

90 N,J

< 5.2< 5.9

< 4.2< 6.8

< 4.2< 5.9

Page 289: Table Proposed Cleanup Levels Groundwater · 10/21/2013  · Table 04 Summery of PrsllMnery Cost ES11motee for Soleening Feasibility Study Former Kest Property Carson, CA GeotFnlenGOneullanle

Table B-2Sub-Slab Soil Vapor Results

Former Kast Property

Carson, California

Residential Properties Sampled Through August 31, 2013

Page 57 of 235

Sample ID

AddressSam

ple Date

Sample Tim

eLocation

AnalyteU

nitsFrequency of D

etection

R24502SVH24502 RAVEN

NA AVE

2010-04-2213:38

HouseR24502SVH

24502 RAVENN

A AVE2010-10-07

11:07House

R24502SVB24502 RAVEN

NA AVE

2010-10-0711:58

BackR24502SVF

24502 RAVENN

A AVE2010-10-07

12:58Front

R24502SVH24502 RAVEN

NA AVE

2010-10-1114:40

HouseR24502SVB

24502 RAVENN

A AVE2010-10-11

15:17Back

R24502SVF24502 RAVEN

NA AVE

2010-10-1116:14

FrontR24502SVH

24502 RAVENN

A AVE2012-07-26

15:07House

R24502SVB24502 RAVEN

NA AVE

2012-07-2615:20

BackR24502SVF

24502 RAVENN

A AVE2012-07-26

15:51Front

M24503SVF

24503 MARBELLA AVE

2010-05-2808:58

FrontM

24503SVB24503 M

ARBELLA AVE2010-05-28

09:40Back

M24503SVH

24503 MARBELLA AVE

2010-05-2810:22

HouseM

24503SVH24503 M

ARBELLA AVE2012-03-30

14:54House

M24503SVF

24503 MARBELLA AVE

2012-03-3015:12

FrontM

24503SVFD24503 M

ARBELLA AVE2012-03-30

15:12Front

M24503SVB

24503 MARBELLA AVE

2012-03-3015:40

BackN

24503SVF24503 N

EPTUN

E AVE2010-06-18

09:48Front

N24503SVB

24503 NEPTU

NE AVE

2010-06-1810:30

BackN

24503SVHA24503 N

EPTUN

E AVE2011-02-02

09:46House

N24503SVHA

24503 NEPTU

NE AVE

2012-04-1310:30

HouseN

24503SVF24503 N

EPTUN

E AVE2012-04-13

10:46Front

N24503SVFD

24503 NEPTU

NE AVE

2012-04-1310:46

FrontN

24503SVHA24503 N

EPTUN

E AVE2013-06-27

14:37House

N24503SVB

24503 NEPTU

NE AVE

2013-06-2714:46

BackN

24503SVF24503 N

EPTUN

E AVE2013-06-27

15:10Front

P24503SVB24503 PAN

AMA AVE

2011-04-0414:05

BackP24503SVH

24503 PANAM

A AVE2011-04-04

14:55House

P24503SVG24503 PAN

AMA AVE

2011-04-0415:31

Garage

P24503SVH24503 PAN

AMA AVE

2012-08-1014:54

HouseP24503SVB

24503 PANAM

A AVE2012-08-10

15:31Back

P24503SVBD24503 PAN

AMA AVE

2012-08-1015:31

BackP24503SVG

24503 PANAM

A AVE2012-08-10

15:34G

arageR24503SVH

24503 RAVENN

A AVE2010-08-09

09:13House

R24503SVG24503 RAVEN

NA AVE

2010-08-0910:01

Garage

R24503SVB24503 RAVEN

NA AVE

2010-08-0911:01

BackR24503SVG

24503 RAVENN

A AVE2012-11-08

14:58G

arageR24503SVH

24503 RAVENN

A AVE2012-11-08

15:09House

R24503SVB24503 RAVEN

NA AVE

2012-11-0815:33

BackM

24506SVH24506 M

ARBELLA AVE2010-04-21

09:55House

M24506SVF

24506 MARBELLA AVE

2010-04-2110:11

FrontM

24506SVB224506 M

ARBELLA AVE2010-08-10

09:00Back

M24506SVH

24506 MARBELLA AVE

2011-01-2610:01

HouseM

24506SVF24506 M

ARBELLA AVE2011-01-26

10:45Front

M24506SVFD

24506 MARBELLA AVE

2011-01-2610:45

FrontM

24506SVB224506 M

ARBELLA AVE2011-01-26

11:36Back

M24506 SVF

24506 MARBELLA AVE

2012-03-1510:29

FrontM

24506SVFS24506 M

ARBELLA AVE2012-03-15

10:29Front

M24506 SVH

24506 MARBELLA AVE

2012-03-1510:29

HouseM

24506 SVB224506 M

ARBELLA AVE2012-03-15

11:23Back

M24506SVB2

24506 MARBELLA AVE

2013-07-0214:47

BackM

24506SVB2D24506 M

ARBELLA AVE2013-07-02

14:47Back

IsopropanolHexane

p/m-Xylene

C6-C8 Aliphatics

1,2,4-Trim

ethyl-benzene

HeptaneC8-C10

AliphaticsC10-C12

AliphaticsC5-C6

AliphaticsEthyl-

benzene

Cumene

(Isopropyl-benzene)

CyclohexaneFreon 11

Methylene

Chloride4-Ethyltoluene

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

4.47%3.74%

3.12%2.72%

2.63%2.63%

2.54%2.01%

2.01%1.97%

1.89%1.89%

1.72%1.72%

1.60%

< 11< 4

< 5< 94 N

,J< 5.6

< 4.7< 130 N

,J300 N

,J< 74 N

,J< 5

< 5.6< 3.9

< 6.4< 4

< 5.6< 11

< 3.9< 4.9

< 92< 5.5

< 4.6< 130

< 160< 72

< 4.9< 5.5

< 3.8< 6.3

< 3.9< 5.5

< 11< 4.1

< 5< 95

< 5.7< 4.8

< 140< 160

< 75< 5

< 5.7< 4

< 6.5< 4

< 5.7< 12

< 4.3< 5.2

< 99< 5.9

< 5< 140

< 170< 78

< 5.2< 5.9

< 4.2< 6.8

< 4.2< 5.9

< 11< 4.1

< 5< 95

< 5.7< 4.8

< 140< 160

< 75< 5

< 5.7< 4

< 6.5< 4

< 5.7< 11

< 4.1< 5

< 95< 5.7

< 4.8< 140

< 160< 75

< 5< 5.7

< 4< 6.5

< 4< 5.7

< 12< 4.2

< 5.2< 98

< 5.8< 4.9

< 140< 160

< 77< 5.2

< 5.8< 4.1

< 6.7< 4.1

< 5.8< 7.8

< 2.8< 3.4

< 65< 3.9

< 3.2< 92

< 110< 51

< 3.4< 3.9

< 2.7< 4.4

< 27< 3.9

< 7.9< 2.8

< 3.5< 66

< 4< 3.3

< 94< 110

< 52< 3.5

< 4< 2.8

< 4.5< 28

< 4< 8.1

< 2.9< 3.6

< 67< 4

< 3.4< 95

< 110< 53

< 3.6< 4

< 2.8< 4.6

< 28< 4

< 12< 4.2

< 5.1< 97 N

,J< 5.8

< 4.8< 140 N

,J250 N

,J< 77 N

,J< 5.1

< 5.8< 4.1

< 6.6< 4.1

< 5.8< 11

< 4.1< 5

< 95 N,J

< 5.7< 4.8

< 140 N,J

< 160 N,J

< 75 N,J

< 5< 5.7

< 4< 6.5

< 4< 5.7

< 13< 4.5

< 5.6< 100 N

,J< 6.3

< 5.3< 150 N

,J< 180 N

,J< 83 N

,J< 5.6

< 6.3< 4.4

< 7.2< 4.5

< 6.3< 7.8

< 2.8< 3.4

< 655.6

< 3.2< 92

< 110< 51

< 3.4< 3.9

< 2.7< 4.4

< 27< 3.9

< 7.7< 2.8

< 3.4< 64

< 3.8< 3.2

< 91< 110

< 51< 3.4

< 3.8< 2.7

< 4.4< 27

< 3.8< 7.8

< 2.8< 3.4

< 65< 3.9

< 3.2< 92

< 110< 51

< 3.4< 3.9

< 2.7< 4.4

< 27< 3.9

< 7.7< 2.7

< 3.4< 64

< 3.8< 3.2

< 91< 110

< 50< 3.4

< 3.8< 2.7

< 4.4< 27

< 3.8< 12

< 4.2< 5.2

< 98 N,J

< 5.8< 4.9

< 140 N,J

< 160 N,J

< 77 N,J

< 5.2< 5.8

< 4.1< 6.7

< 4.1< 5.8

< 11< 4.1

< 5< 95 N

,J< 5.7

< 4.8< 140 N

,J< 160 N

,J< 75 N

,J< 5

< 5.7< 4

< 6.5< 4

< 5.721

< 3.9< 4.8

< 90< 5.4

< 4.5< 130

< 150< 72

< 4.8< 5.4

< 3.8< 6.2

< 3.8< 5.4

< 8.1< 2.9

< 3.6< 67

< 4< 3.4

< 95< 110

< 53< 3.6

< 4< 2.8

< 4.6< 28

< 420

< 2.820 j

< 65< 3.9

< 3.2< 92

< 110< 51

6.2 j< 3.9

< 2.7< 4.4

< 27< 3.9

< 7.8< 2.8

< 3.4< 65

< 3.9< 3.2

< 92< 110

< 51< 3.4

< 3.9< 2.7

< 4.4< 27

< 3.9< 11

< 4.1< 5

< 95< 5.7

< 4.8< 140

< 160< 75

< 5< 5.7

< 4< 6.5

< 40< 5.7

< 12< 4.3

< 5.3< 100

< 6< 5

< 140< 170

< 79< 5.3

< 6< 4.2

< 6.8< 42

< 6< 12

< 4.4< 5.5

< 100< 6.2

< 5.2< 150

< 180< 82

< 5.5< 6.2

< 4.4< 7.1

< 44< 6.2

< 13< 4.6

< 5.7< 110

< 6.4< 5.3

< 150< 180

< 84< 5.7

< 6.4< 4.5

< 7.3< 4.5

< 6.4< 12

< 4.4< 5.5

< 100< 6.2

< 5.2< 150

< 180< 82

< 5.5< 6.2

< 4.3< 7.1

< 4.4< 6.2

< 13< 4.6

< 5.7< 110

< 6.4< 5.3

< 150< 180

< 84< 5.7

< 6.4< 4.5

< 7.3< 4.5

< 6.4< 8.2

< 2.9< 3.6

< 68< 4.1

< 3.4< 97

< 120< 54

< 3.6< 4.1

< 2.8< 4.7

< 29< 4.1

< 11< 3.9

< 4.8< 68

< 5.4< 4.5

< 97< 120

< 54< 4.8

< 5.4< 3.8

< 6.2< 38

< 5.4< 17

< 6< 7.4

< 140< 8.4

< 7< 200

< 240< 110

< 7.4< 8.4

< 5.8< 9.6

< 59< 8.4

< 8< 2.8

< 3.5< 66

< 4< 3.3

< 94< 110

< 52< 3.5

< 4< 2.8

< 4.6< 28

< 4< 12

< 4.3< 5.2

< 99 N,J

< 5.9< 5

< 140 N,J

< 170 N,J

< 78 N,J

< 5.2< 5.9

< 4.2< 6.8

< 4.2< 5.9

< 11< 4.1

< 5< 95 N

,J< 5.7

< 4.8< 140 N

,J< 160 N

,J< 75 N

,J< 5

< 5.7< 4

< 6.55.4

< 5.7< 11

< 4.1< 5

< 95 N,J

< 5.7< 4.8

< 140 N,J

< 160 N,J

< 75 N,J

< 5< 5.7

< 4< 6.5

< 4< 5.7

< 11< 4.1

< 5< 95

< 5.7< 4.8

< 140< 160

< 75< 5

< 5.7< 4

< 6.5< 40

< 5.7< 11

< 4.1< 5

< 95< 5.7

< 4.8< 140

< 160< 75

< 5< 5.7

< 4< 6.5

< 40< 5.7

< 12< 4.3

< 5.2< 99

< 5.9< 5

< 140< 170

< 78< 5.2

< 5.9< 4.2

< 6.8< 42

< 5.9< 11

13530

< 95 N,J

8511

< 140 N,J

< 160 N,J

< 75 N,J

98< 5.7

4.8< 6.5

< 4100

< 12< 4.2

< 5.1< 97 N

,J< 5.8

< 4.8< 140 N

,J< 160 N

,J< 77 N

,J< 5.1

< 5.8< 4.1

< 6.6< 4.1

< 5.8< 11

< 4.1< 5

< 95 N,J

9.2< 4.7

< 130 N,J

< 160 N,J

< 75 N,J

< 5< 5.7

< 411

5.7< 5.7

< 11< 4

< 5< 93

< 5.6< 4.7

< 130< 160

< 74< 4.9

< 5.6< 3.9

< 6.4< 4

< 5.6< 12

< 4.2< 5.1

< 97< 5.8

< 4.8< 140

< 160< 77

< 5.1< 5.8

< 4.1< 6.6

< 4.1< 5.8

< 12< 4.2

< 5.1< 97

< 5.8< 4.8

< 140< 160

< 77< 5.1

< 5.8< 4.1

< 6.6< 4.1

< 5.8< 11

< 4.1< 5

< 95< 5.7

< 4.8< 140

< 160< 75

< 5< 5.7

4.1< 6.5

< 4< 5.7

< 14< 4.9

< 6< 110

< 6.8< 5.7

< 160< 190

< 90< 6

< 6.8< 4.8

< 7.8< 48

< 6.8< 3.6 U

< 1.8 U< 3.6 U

< 1.8 U< 1.8 U

< 1.8 U< 1.8 U

< 3.6 U< 1.8 U

< 1.8 U< 1.8 U

< 7.9< 2.8

< 3.5< 66

< 4< 3.3

< 94< 110

< 52< 3.5

< 4< 2.8

< 4.5< 28

< 4< 13

< 4.8< 5.9

< 110< 6.7

< 5.6< 160

< 190< 88

< 5.9< 6.7

< 4.7< 7.6

< 47< 6.7

< 12< 4.4

< 5.4< 100

< 6.2< 5.1

< 150< 170

< 81< 5.4

< 6.2< 4.3

< 7< 44

< 6.2< 12

< 4.3< 5.3

< 100< 6

< 5< 140

< 170< 79

< 5.3< 6

< 4.2< 6.9

< 42< 6

Page 290: Table Proposed Cleanup Levels Groundwater · 10/21/2013  · Table 04 Summery of PrsllMnery Cost ES11motee for Soleening Feasibility Study Former Kest Property Carson, CA GeotFnlenGOneullanle

Table B-2Sub-Slab Soil Vapor Results

Former Kast Property

Carson, California

Residential Properties Sampled Through August 31, 2013

Page 58 of 235

Sample ID

AddressSam

ple Date

Sample Tim

eLocation

AnalyteU

nitsFrequency of D

etection

M24506SVH

24506 MARBELLA AVE

2013-07-0214:55

HouseM

24506SVF24506 M

ARBELLA AVE2013-07-02

15:12Front

N24508SVH

24508 NEPTU

NE AVE

2010-06-1109:06

HouseN

24508SVB24508 N

EPTUN

E AVE2010-06-11

10:01Back

N24508SVF

24508 NEPTU

NE AVE

2010-06-1110:45

FrontN

24508SVF24508 N

EPTUN

E AVE2011-01-28

10:23Front

N24508SVH

24508 NEPTU

NE AVE

2011-01-2811:03

HouseN

24508SVB24508 N

EPTUN

E AVE2011-01-28

11:35Back

N24508SVBS

24508 NEPTU

NE AVE

2011-01-2811:35

BackP24508SVF

24508 PANAM

A AVE2010-05-19

09:43Front

P24508SVH24508 PAN

AMA AVE

2010-05-1910:26

HouseP24508SVB

24508 PANAM

A AVE2010-05-19

11:06Back

P24508SVH24508 PAN

AMA AVE

2012-04-2615:00

HouseP24508SVF

24508 PANAM

A AVE2012-04-26

15:07Front

P24508SVFD24508 PAN

AMA AVE

2012-04-2615:07

FrontP24508SVB

24508 PANAM

A AVE2012-04-26

15:34Back

R24508SVHA24508 RAVEN

NA AVE

2011-01-3109:42

HouseR24508SVF

24508 RAVENN

A AVE2011-01-31

10:21Front

R24508SVB24508 RAVEN

NA AVE

2011-01-3111:00

BackR24508SVHA

24508 RAVENN

A AVE2013-03-29

10:00House

R24508SVB24508 RAVEN

NA AVE

2013-03-2910:14

BackR24508SVBS

24508 RAVENN

A AVE2013-03-29

10:14Back

R24508SVF24508 RAVEN

NA AVE

2013-03-2910:49

FrontR24508SVFD

24508 RAVENN

A AVE2013-03-29

10:49Front

N24509SVH

24509 NEPTU

NE AVE

2010-05-0413:45

HouseN

24509SVF24509 N

EPTUN

E AVE2010-05-04

15:44Front

N24509SVB2

24509 NEPTU

NE AVE

2010-07-3009:30

BackN

24509SVB2S24509 N

EPTUN

E AVE2010-07-30

09:30Back

N24509SVH

24509 NEPTU

NE AVE

2012-07-0610:10

HouseN

24509SVB224509 N

EPTUN

E AVE2012-07-06

10:12Back

N24509SVF

24509 NEPTU

NE AVE

2012-07-0611:02

FrontN

24509SVFS24509 N

EPTUN

E AVE2012-07-06

11:02Front

N24509SVB2

24509 NEPTU

NE AVE

2013-03-1414:44

BackN

24509SVB2D24509 N

EPTUN

E AVE2013-03-14

14:44Back

N24509SVH

24509 NEPTU

NE AVE

2013-03-1414:52

HouseN

24509SVF24509 N

EPTUN

E AVE2013-03-14

15:14Front

P24509SVH24509 PAN

AMA AVE

2010-11-1213:31

HouseP24509SVF

24509 PANAM

A AVE2010-11-12

14:13Front

P24509SVB24509 PAN

AMA AVE

2010-11-1214:44

BackP24509SVH

24509 PANAM

A AVE2013-02-07

09:44House

P24509SVB24509 PAN

AMA AVE

2013-02-0709:50

BackP24509SVBD

24509 PANAM

A AVE2013-02-07

09:50Back

P24509SVH24509 PAN

AMA AVE

2013-06-2810:31

HouseP24509SVB

24509 PANAM

A AVE2013-06-28

10:34Back

P24509SVBD24509 PAN

AMA AVE

2013-06-2810:34

BackP24509SVFA

24509 PANAM

A AVE2013-06-28

10:54Front

R24509SVH24509 RAVEN

NA AVE

2010-06-2110:03

HouseR24509SVB

24509 RAVENN

A AVE2010-06-21

10:50Back

R24509SVG24509 RAVEN

NA AVE

2010-10-1512:12

Garage

R24509SVG24509 RAVEN

NA AVE

2012-04-1215:49

Garage

R24509SVB24509 RAVEN

NA AVE

2013-08-1510:06

BackR24509SVBS

24509 RAVENN

A AVE2013-08-15

10:06Back

IsopropanolHexane

p/m-Xylene

C6-C8 Aliphatics

1,2,4-Trim

ethyl-benzene

HeptaneC8-C10

AliphaticsC10-C12

AliphaticsC5-C6

AliphaticsEthyl-

benzene

Cumene

(Isopropyl-benzene)

CyclohexaneFreon 11

Methylene

Chloride4-Ethyltoluene

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

4.47%3.74%

3.12%2.72%

2.63%2.63%

2.54%2.01%

2.01%1.97%

1.89%1.89%

1.72%1.72%

1.60%

< 12< 4.2

< 5.1< 97

< 5.8< 4.8

< 140< 160

< 76< 5.1

< 5.8< 4.1

< 6.6< 41

< 5.8< 12

< 4.5< 5.6

< 100< 6.3

< 5.2< 150

< 180< 83

< 5.6< 6.3

< 4.4< 7.2

< 44< 6.3

< 11< 3.9

< 4.9< 92 N

,J< 5.5

< 4.6< 130 N

,J< 160 N

,J< 72 N

,J< 4.9

< 5.5< 3.8

< 6.3< 3.9

< 5.5< 11

< 4.1< 5

< 95 N,J

< 5.7< 4.8

< 140 N,J

< 160 N,J

< 75 N,J

< 5< 5.7

< 4< 6.5

< 4< 5.7

< 12< 4.4

< 5.4< 100 N

,J< 6.1

< 5.1< 140 N

,J< 170 N

,J< 80 N

,J< 5.4

< 6.1< 4.2

< 6.9< 4.3

< 6.1< 11

< 3.9< 4.9

< 92< 5.5

< 4.6< 130

< 160< 72

< 4.9< 5.5

< 3.8< 6.3

< 3.9< 5.5

< 11< 3.9

< 4.9< 92

< 5.5< 4.6

< 130< 160

< 72< 4.9

< 5.5< 3.8

< 6.3< 3.9

< 5.5< 11

< 4.1< 5

< 95< 5.7

< 4.8< 140

< 160< 75

< 5< 5.7

< 4< 6.5

< 4< 5.7

< 3.6< 1.8

< 3.6< 1.8

< 1.8< 1.8

< 1.8< 3.6

2.5< 1.8

< 1.8< 11

< 4.1< 5

< 95 N,J

< 5.7< 4.8

< 140 N,J

< 160 N,J

< 75 N,J

< 5< 5.7

< 4< 6.5

< 4< 5.7

21< 4.2

7.9< 97 N

,J1200

< 4.8< 140 N

,J< 160 N

,J< 77 N

,J< 5.1

10< 4.1

< 6.6< 4.1

240< 12

< 4.2< 5.1

< 97 N,J

< 5.8< 4.8

< 140 N,J

< 160 N,J

< 77 N,J

< 5.1< 5.8

< 4.1< 6.6

< 4.1< 5.8

< 7.9< 2.8

< 3.5< 66

< 4< 3.3

< 94< 110

< 52< 3.5

< 4< 2.8

< 4.5< 28

< 4< 7.9

< 2.8< 3.5

< 66< 4

< 3.3< 94

< 110< 52

< 3.5< 4

< 2.8< 4.5

< 28< 4

< 7.9< 2.8

< 3.5< 66

< 4< 3.3

< 94140

< 52< 3.5

< 4< 2.8

< 4.5< 28

< 4< 7.8

< 2.8< 3.4

< 65< 3.9

< 3.2< 92

< 110< 51

< 3.4< 3.9

< 2.7< 4.4

< 27< 3.9

< 11< 3.9

< 4.9< 92

< 5.5< 4.6

< 130< 160

< 72< 4.9

< 5.5< 3.8

< 6.3< 3.9

< 5.5< 11

< 4.1< 5

< 95< 5.7

< 4.8< 140

< 160< 75

< 5< 5.7

< 4< 6.5

< 4< 5.7

< 11< 3.9

< 4.9< 92

< 5.5< 4.6

< 130< 160

< 72< 4.9

< 5.5< 3.8

< 6.3< 3.9

< 5.5< 12

< 4.2< 5.1

< 97< 5.8

< 4.8< 140

< 160< 77

< 5.1< 5.8

< 4.1< 6.6

< 41< 5.8

< 11< 4.1

< 5< 95

< 5.7< 4.8

< 140< 160

< 75< 5

< 5.7< 4

< 6.5< 40

< 5.7< 4.4 U

< 2.2 U< 4.4 U

< 2.2 U< 2.2 U

< 2.2 U< 2.2 U

< 4.4 U< 2.2 U

< 2.2 U< 2.2 U

< 12< 4.2

< 5.2< 98

< 5.8< 4.9

< 140< 160

< 77< 5.2

< 5.8< 4.1

< 6.7< 41

< 5.8< 12

< 4.1< 5.1

< 96< 5.8

< 4.8< 140

< 160< 76

< 5.1< 5.8

< 4< 6.6

< 41< 5.8

< 12< 4.2

< 5.2< 99 N

,J< 5.9

< 4.9< 140 N

,J< 170 N

,J< 78 N

,J< 5.2

< 5.9< 4.1

< 6.8< 4.2

< 5.9< 12

< 4.4< 5.4

< 100 N,J

< 6.1< 5.1

< 140 N,J

< 170 N,J

< 81 N,J

< 5.4< 6.1

< 4.3< 7

< 4.3< 6.1

< 11< 4.1

< 5< 95 N

,J< 5.7

< 4.8< 140 N

,J< 160 N

,J< 75 N

,J< 5

< 5.7< 4

< 6.5< 4

< 5.7< 3.4

< 1.7< 3.4

< 1.7< 1.7

< 1.72.8

< 3.4< 1.7

< 1.7< 1.7

< 7.5< 2.7

< 3.3< 62

< 3.7 PF< 3.1

< 88< 100

< 49< 3.3

< 3.7< 2.6

< 4.3< 26

< 3.7< 7.1

< 2.6< 3.1

< 59< 3.6 PF

< 3< 84

< 100< 47

< 3.1< 3.6

< 2.5< 4.1

< 25< 3.6

< 7.5< 2.7

< 3.3< 63

< 3.8 PF< 3.1

< 89< 110

< 50< 3.3

< 3.8< 2.6

< 4.3< 26

< 3.8< 17 U

< 1.7 U< 3.4 U

< 1.7 U< 1.7 U

< 1.7 U< 1.7 U

< 3.4 U< 1.7 U

< 1.7 U< 1.7 U

< 11< 4

< 5< 94

< 5.6< 4.7

< 130< 160

< 74< 5

< 5.6< 4

< 6.5< 40

< 5.6< 11

< 4.1< 5

< 95< 5.7

< 4.8< 140

< 160< 75

< 5< 5.7

< 4< 6.5

< 40< 5.7

< 11< 4.1

< 5< 95

< 5.7< 4.8

< 140< 160

< 75< 5

< 5.7< 4

< 6.5< 40

< 5.7< 12

< 4.2< 5.2

< 99< 5.9

< 4.9< 140

< 170< 78

< 5.2< 5.9

< 4.1< 6.8

< 42< 5.9

< 11< 4.1

< 5< 95

< 5.7< 4.8

< 140< 160

< 75< 5

< 5.7< 4

< 6.5< 4

< 5.7< 12

< 4.2< 5.2

< 98< 5.8

< 4.9< 140

< 160< 77

< 5.2< 5.8

< 4.1< 6.7

< 4.1< 5.8

< 12< 4.3

< 5.2< 99

< 5.9< 5

< 140< 170

< 78< 5.2

< 5.9< 4.2

< 6.8< 4.2

< 5.9< 12

< 4.3< 5.2

< 99< 5.9

< 5< 140

< 170< 78

< 5.2< 5.9

< 4.2< 6.8

< 42< 5.9

< 25< 9

< 11< 210

< 12< 10

< 300< 350

< 160< 11

< 12< 8.7

< 14< 88

< 12< 12

< 4.3< 5.2

< 99< 5.9

< 5< 140

< 170< 78

< 5.2< 5.9

< 4.2< 6.8

< 42< 5.9

< 12< 4.4

< 5.4< 100

< 6.2< 5.1

< 150< 170

< 81< 5.4

< 6.2< 4.3

< 7< 44

< 6.2< 12

< 4.2< 5.2

< 98< 5.9

< 4.9< 140

< 170< 78

< 5.2< 5.9

< 4.1< 6.7

< 42< 5.9

< 12< 4.2

< 5.2< 98

< 5.9< 4.9

< 140< 170

< 78< 5.2

< 5.9< 4.1

< 6.7< 42

< 5.9< 12

< 4.1< 5.1

< 96< 5.8

< 4.8< 140

< 160< 76

< 5.1< 5.8

< 4< 6.6

< 41< 5.8

< 12< 4.2

< 5.2< 98 N

,J< 5.9

< 4.9< 140 N

,J< 170 N

,J< 77 N

,J< 5.2

< 5.9< 4.1

< 6.7< 4.2

< 5.9< 11

< 4.1< 5

< 95 N,J

< 5.7< 4.8

< 140 N,J

< 160 N,J

< 75 N,J

< 5< 5.7

< 4< 6.5

< 4< 5.7

< 12< 4.2

< 5.2< 98

< 5.9< 4.9

< 140< 170

< 77< 5.2

< 5.9< 4.1

< 6.7< 4.2

< 5.9< 7.8

< 2.8< 3.4

< 65< 3.9

< 3.2< 92

< 110< 51

< 3.4< 3.9

< 2.7< 4.4

< 27< 3.9

< 11< 4.1

< 5< 95

< 5.7< 4.8

< 140< 160

< 75< 5

< 5.7< 4

< 6.5< 40

< 5.7< 19 U

< 1.9 U< 3.9 U

< 1.9 U< 1.9 U

< 1.9 U< 1.9 U

< 3.9 U< 1.9 U

< 1.9 U< 1.9 U

Page 291: Table Proposed Cleanup Levels Groundwater · 10/21/2013  · Table 04 Summery of PrsllMnery Cost ES11motee for Soleening Feasibility Study Former Kest Property Carson, CA GeotFnlenGOneullanle

Table B-2Sub-Slab Soil Vapor Results

Former Kast Property

Carson, California

Residential Properties Sampled Through August 31, 2013

Page 59 of 235

Sample ID

AddressSam

ple Date

Sample Tim

eLocation

AnalyteU

nitsFrequency of D

etection

R24509SVHA24509 RAVEN

NA AVE

2013-08-1510:13

HouseR24509SVG

24509 RAVENN

A AVE2013-08-15

10:34G

arageM

24512SVB24512 M

ARBELLA AVE2011-04-28

08:53Back

M24512SVBS

24512 MARBELLA AVE

2011-04-2808:53

BackM

24512SVH24512 M

ARBELLA AVE2011-04-28

09:34House

M24512SVF

24512 MARBELLA AVE

2011-04-2810:12

FrontM

24512SVFS24512 M

ARBELLA AVE2011-04-28

10:12Front

M24512SVH

24512 MARBELLA AVE

2012-01-2009:53

HouseM

24512SVF24512 M

ARBELLA AVE2012-01-20

11:36Front

M24512SVFS

24512 MARBELLA AVE

2012-01-2011:36

FrontM

24512SVB24512 M

ARBELLA AVE2012-01-20

12:28Back

N24512SVH

24512 NEPTU

NE AVE

2013-07-2614:42

HouseN

24512SVB24512 N

EPTUN

E AVE2013-07-26

14:49Back

N24512SVF

24512 NEPTU

NE AVE

2013-07-2615:09

FrontP24512SVH

24512 PANAM

A AVE2010-11-08

09:27House

P24512SVF24512 PAN

AMA AVE

2010-11-0810:01

FrontP24512SVFS

24512 PANAM

A AVE2010-11-08

10:01Front

P24512SVB24512 PAN

AMA AVE

2010-11-0810:43

BackP24512SVH

24512 PANAM

A AVE2012-11-15

15:43House

P24512SVF24512 PAN

AMA AVE

2012-11-1515:46

FrontP24512SVB

24512 PANAM

A AVE2012-11-15

16:26Back

P24512SVH24512 PAN

AMA AVE

2013-06-1309:49

HouseP24512SVF

24512 PANAM

A AVE2013-06-13

10:01Front

P24512SVFS24512 PAN

AMA AVE

2013-06-1310:01

FrontP24512SVB

24512 PANAM

A AVE2013-06-13

10:25Back

N24513SVH

24513 NEPTU

NE AVE

2010-08-0509:03

HouseN

24513SVB24513 N

EPTUN

E AVE2010-08-05

09:41Back

N24513SVBD

24513 NEPTU

NE AVE

2010-08-0509:41

BackN

24513SVF24513 N

EPTUN

E AVE2010-08-05

10:21Front

N24513SVF

24513 NEPTU

NE AVE

2012-08-0215:00

FrontN

24513SVFD24513 N

EPTUN

E AVE2012-08-02

15:00Front

N24513SVH

24513 NEPTU

NE AVE

2012-08-0215:26

HouseN

24513SVB24513 N

EPTUN

E AVE2012-08-02

15:30Back

N24513SVB

24513 NEPTU

NE AVE

2013-06-0514:57

BackN

24513SVBS24513 N

EPTUN

E AVE2013-06-05

14:57Back

N24513SVH

24513 NEPTU

NE AVE

2013-06-0515:16

HouseN

24513SVF24513 N

EPTUN

E AVE2013-06-05

15:25Front

R24513SVB24513 RAVEN

NA AVE

2010-04-2312:51

BackR24513SVH

24513 RAVENN

A AVE2010-04-23

14:30House

R24513SVF24513 RAVEN

NA AVE

2010-04-2315:45

FrontR24513SVH

24513 RAVENN

A AVE2010-08-19

13:44House

R24513SVF24513 RAVEN

NA AVE

2010-08-1914:33

FrontR24513SVB

24513 RAVENN

A AVE2010-08-19

15:14Back

R24513SVF24513 RAVEN

NA AVE

2012-05-2514:44

FrontR24513SVFD

24513 RAVENN

A AVE2012-05-25

14:44Front

R24513SVB24513 RAVEN

NA AVE

2012-05-2515:00

BackR24513SVHA

24513 RAVENN

A AVE2013-07-25

14:42House

R24513SVB24513 RAVEN

NA AVE

2013-07-2514:51

BackR24513SVF

24513 RAVENN

A AVE2013-07-25

15:15Front

M24516SVH

24516 MARBELLA AVE

2010-05-2709:16

HouseM

24516SVB24516 M

ARBELLA AVE2010-05-27

10:11Back

M24516SVG

24516 MARBELLA AVE

2010-05-2710:55

Garage

IsopropanolHexane

p/m-Xylene

C6-C8 Aliphatics

1,2,4-Trim

ethyl-benzene

HeptaneC8-C10

AliphaticsC10-C12

AliphaticsC5-C6

AliphaticsEthyl-

benzene

Cumene

(Isopropyl-benzene)

CyclohexaneFreon 11

Methylene

Chloride4-Ethyltoluene

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

4.47%3.74%

3.12%2.72%

2.63%2.63%

2.54%2.01%

2.01%1.97%

1.89%1.89%

1.72%1.72%

1.60%

< 12< 4.3

< 5.3< 100

< 6< 5

< 140< 170

< 79< 5.3

< 6< 4.2

< 6.9< 42

< 6< 12

< 4.2< 5.1

< 97< 5.8

< 4.8< 140

< 160< 76

< 5.1< 5.8

< 4.1< 6.6

< 41< 5.8

< 13< 4.6

< 5.7< 110

< 6.5< 5.4

< 150< 180

< 85< 5.7

< 6.5< 4.5

< 7.4< 4.6

< 6.5< 3.7

< 1.9< 3.7

< 1.9< 1.9

< 1.9< 1.9

< 3.74

< 1.9< 1.9

< 12< 4.3

< 5.2< 99

< 5.9< 5

< 140< 170

< 78< 5.2

< 5.9< 4.2

< 6.86.2

< 5.9< 11

< 4< 5

< 94< 5.6

< 4.7< 130

< 160< 74

< 5< 5.6

< 3.97.7

< 4< 5.6

< 4< 2

< 4< 2

< 2< 2

< 2< 4

7.9< 2

< 2< 7.5

< 2.7< 3.3

< 62< 3.7

< 3.1< 88

< 100< 49

< 3.3< 3.7

< 2.6< 4.3

< 2.6< 3.7

< 7.5< 2.7

< 3.3< 62

< 3.7< 3.1

< 88< 100

< 49< 3.3

< 3.7< 2.6

< 4.3< 2.6

< 3.7< 3.4 U

< 1.7 U< 3.4 U

< 1.7 U< 1.7 U

< 1.7 U< 1.7 U

< 3.4 U< 1.7 U

< 1.7 U< 1.7 U

< 7.9< 2.8

< 3.5< 66

< 4< 3.3

< 94< 110

< 52< 3.5

< 4< 2.8

< 4.5< 2.8

< 4< 11

< 4.1< 5

< 95< 5.7

< 4.8< 140

< 160< 75

< 5< 5.7

< 4< 6.5

< 40< 5.7

12< 4

< 5< 94

< 5.6< 4.7

< 130< 160

< 74< 5

< 5.6< 3.9

< 6.4< 40

< 5.6< 12

< 4.4< 5.4

< 100< 6.1

< 5.1< 140

< 170< 80

< 5.4< 6.1

< 4.2< 6.9

< 43< 6.1

< 12< 4.1

< 5.1< 96

< 5.8< 4.8

< 140< 160

< 76< 5.1

< 5.8< 4

< 6.6< 4.1

< 5.8< 12

< 4.1< 5.1

1800< 5.8

< 4.8< 140

< 160< 76

< 5.1< 5.8

< 4< 6.6

< 4.1< 5.8

8.1< 2.7

< 5.4< 2.7

< 2.7< 2.7

< 2.7< 5.4

< 2.7< 2.7

< 2.7< 12

< 4.3< 5.3

< 100< 6

< 5< 140

< 170< 80

< 5.3< 6

< 4.2< 6.9

< 4.3< 6

< 11< 4.1

< 5< 95

< 5.7< 4.8

< 140< 160

< 75< 5

< 5.7< 4

< 6.5< 40

< 5.7< 11

< 3.96.6

< 92< 5.5

< 4.6< 130

< 160< 72

< 4.9< 5.5

< 3.8< 6.3

< 39< 5.5

< 11< 4

< 5< 94

< 5.6< 4.7

< 130< 160

< 74< 5

< 5.6< 3.9

< 6.4< 40

< 5.6< 11

< 3.8< 4.8

< 90< 5.4

< 4.5< 130

< 150< 71

< 4.8< 5.4

< 3.8< 6.2

< 38< 5.4

< 12< 4.4

< 5.4< 100

< 6.1< 5.1

< 140< 170

< 80< 5.4

< 6.1< 4.3

< 7< 43

< 6.1< 20 U

< 2 U< 4.1 U

< 2 U< 2 U

< 2 U< 2 U

< 4.1 U< 2 U

< 2 U< 2 U

< 12< 4.4

< 5.4< 100

< 6.1< 5.1

< 140< 170

< 81< 5.4

< 6.1< 4.3

< 7< 43

< 6.1< 11

< 4.1< 5

< 95 N,J

< 5.7< 4.8

< 140 N,J

< 160 N,J

< 75 N,J

< 5< 5.7

< 4< 6.5

< 4< 5.7

< 11< 4.1

< 5< 95 N

,J< 5.7

< 4.8< 140 N

,J< 160 N

,J< 75 N

,J< 5

< 5.7< 4

< 6.5< 4

< 5.7< 11

< 4.1< 5

< 95 N,J

< 5.7< 4.8

< 140 N,J

< 160 N,J

< 75 N,J

< 5< 5.7

< 4< 6.5

< 4< 5.7

< 11< 4.1

< 5< 95 N

,J< 5.7

< 4.8< 140 N

,J< 160 N

,J< 75 N

,J< 5

< 5.7< 4

< 6.5< 4

< 5.7< 8.2

< 3< 3.6

< 69< 4.1

< 3.4< 98

< 120< 54

< 3.6< 4.1

< 2.9< 4.7

< 29< 4.1

< 8.2< 3

< 3.6< 69

< 4.1< 3.4

< 98< 120

< 54< 3.6

< 4.1< 2.9

< 4.7< 29

< 4.1< 10

< 3.7< 4.5

< 85< 5.1

< 4.3< 120

< 140< 67

< 4.5< 5.1

< 3.6< 5.8

< 36< 5.1

< 7.6< 2.7

< 3.4< 64

< 3.8< 3.2

< 90< 110

< 50< 3.4

< 3.8< 2.7

< 4.4< 27

< 3.8< 12

< 4.5< 5.6

< 100< 6.3

< 5.2< 150

< 180< 83

< 5.6< 6.3

< 4.4< 7.2

< 44< 6.3

< 23 U< 2.3 U

< 4.6 U< 2.3 U

< 2.3 U< 2.3 U

< 2.3 U< 4.6 U

< 2.3 U< 2.3 U

< 2.3 U< 12

< 4.2< 5.2

< 98< 5.8

< 4.9< 140

< 160< 77

< 5.2< 5.8

< 4.1< 6.7

< 41< 5.8

< 12< 4.3

< 5.2< 99

< 5.9< 5

< 140< 170

< 78< 5.2

< 5.9< 4.2

< 6.8< 42

< 5.9< 11

< 4< 5

< 94 N,J

< 5.6< 4.7

< 130 N,J

< 160 N,J

< 74 N,J

< 5< 5.6

< 3.9< 6.4

< 4< 5.6

238.3

18620 N

,J9.7

7.5520 N

,J< 160 N

,J930 N

,J11

6228

< 6.5< 4

< 5.7< 11

< 4.1< 5

< 95 N,J

< 5.7< 4.8

< 140 N,J

180 N,J

< 75 N,J

< 5< 5.7

< 4< 6.5

< 4< 5.7

< 12< 4.2

< 5.2< 98

< 5.9< 4.9

< 140< 170

< 77< 5.2

< 5.9< 4.1

< 6.7< 4.2

< 5.9< 12

< 4.2< 5.2

< 98< 5.9

< 4.9< 140

< 170< 78

< 5.2< 5.9

< 4.1< 6.7

< 4.2< 5.9

< 11< 4.1

< 5< 95

< 5.7< 4.8

< 140< 160

< 75< 5

< 5.7< 4

< 6.5< 4

< 5.7< 7.9

< 2.8< 3.5

< 66< 3.9

3.8< 93

< 110< 52

< 3.5< 3.9

< 2.8< 4.5

< 28< 3.9

< 7.8< 2.8

< 3.4< 65

< 3.93.9

< 92< 110

< 51< 3.4

< 3.9< 2.7

< 4.4< 27

< 3.9< 7.4

< 2.6< 3.2

< 61< 3.7

< 3.1< 87

< 100< 48

< 3.2< 3.7

< 2.6< 4.2

< 26< 3.7

< 12< 4.2

< 5.2< 98

< 5.8< 4.9

< 140< 160

< 77< 5.2

< 5.8< 4.1

< 6.7< 41

< 5.8< 12

< 4.3< 5.2

< 99< 5.9

< 5< 140

< 170< 78

< 5.2< 5.9

< 4.2< 6.8

< 42< 5.9

< 12< 4.3

< 5.2< 99

< 5.9< 5

< 140< 170

< 78< 5.2

< 5.9< 4.2

< 6.8< 42

< 5.9< 11

< 4.1< 5

< 95 N,J

< 5.76.8

< 140 N,J

< 160 N,J

< 75 N,J

< 5< 5.7

< 4< 6.5

< 4< 5.7

< 12< 4.2

< 5.2< 98 N

,J< 5.8

< 4.9< 140 N

,J< 160 N

,J< 77 N

,J< 5.2

< 5.8< 4.1

< 6.7< 4.1

< 5.8< 12

< 4.2< 5.2

< 98 N,J

< 5.8< 4.9

< 140 N,J

< 160 N,J

< 77 N,J

< 5.2< 5.8

< 4.1< 6.7

< 4.1< 5.8

Page 292: Table Proposed Cleanup Levels Groundwater · 10/21/2013  · Table 04 Summery of PrsllMnery Cost ES11motee for Soleening Feasibility Study Former Kest Property Carson, CA GeotFnlenGOneullanle

Table B-2Sub-Slab Soil Vapor Results

Former Kast Property

Carson, California

Residential Properties Sampled Through August 31, 2013

Page 60 of 235

Sample ID

AddressSam

ple Date

Sample Tim

eLocation

AnalyteU

nitsFrequency of D

etection

M24516SVH

24516 MARBELLA AVE

2012-05-2414:57

HouseM

24516SVG24516 M

ARBELLA AVE2012-05-24

15:14G

arageM

24516SVGD

24516 MARBELLA AVE

2012-05-2415:14

Garage

M24516SVB

24516 MARBELLA AVE

2012-05-2415:39

BackM

24517SVF24517 M

ARBELLA AVE2009-10-06

13:40Front

M24517SVB

24517 MARBELLA AVE

2009-10-0617:16

BackM

24517SVBD24517 M

ARBELLA AVE2009-10-06

17:16Back

M24517SVH

24517 MARBELLA AVE

2011-02-0809:42

HouseM

24517SVH24517 M

ARBELLA AVE2011-10-11

13:46House

M24517SVF

24517 MARBELLA AVE

2011-10-1114:20

FrontM

24517SVFD24517 M

ARBELLA AVE2011-10-11

14:20Front

M24517SVB

24517 MARBELLA AVE

2011-10-1114:57

BackM

24517SVBD24517 M

ARBELLA AVE2011-10-11

14:57Back

M24517SVB

24517 MARBELLA AVE

2012-03-2315:05

BackM

24517SVBD24517 M

ARBELLA AVE2012-03-23

15:05Back

M24517SVF

24517 MARBELLA AVE

2012-03-2315:16

FrontM

24517SVB24517 M

ARBELLA AVE2013-08-20

14:42Back

M24517SVH

24517 MARBELLA AVE

2013-08-2014:57

HouseM

24517SVF24517 M

ARBELLA AVE2013-08-20

15:02Front

N24518SVB

24518 NEPTU

NE AVE

2010-07-2810:05

BackN

24518SVH24518 N

EPTUN

E AVE2010-07-28

11:06House

N24518SVG

24518 NEPTU

NE AVE

2010-07-2812:10

Garage

N24518SVH

24518 NEPTU

NE AVE

2013-04-2609:59

HouseN

24518SVG24518 N

EPTUN

E AVE2013-04-26

10:29G

arageN

24518SVB24518 N

EPTUN

E AVE2013-04-26

10:32Back

N24518SVBD

24518 NEPTU

NE AVE

2013-04-2610:32

BackN

24518SVB24518 N

EPTUN

E AVE2013-07-16

14:56Back

N24518SVBD

24518 NEPTU

NE AVE

2013-07-1614:56

BackN

24518SVH24518 N

EPTUN

E AVE2013-07-16

15:35House

N24518SVG

24518 NEPTU

NE AVE

2013-07-1615:38

Garage

R24518SVH224518 RAVEN

NA AVE

2010-04-2614:09

HouseR24518SVH1

24518 RAVENN

A AVE2010-04-26

15:09House

R24518SVF24518 RAVEN

NA AVE

2010-04-2616:04

FrontR24518SVF

24518 RAVENN

A AVE2012-07-12

14:58Front

R24518SVFD24518 RAVEN

NA AVE

2012-07-1214:58

FrontR24518SVH1

24518 RAVENN

A AVE2012-07-12

15:08House

R24518SVH224518 RAVEN

NA AVE

2012-07-1215:49

HouseN

24519SVB24519 N

EPTUN

E AVE2010-08-10

09:01Back

N24519SVH

24519 NEPTU

NE AVE

2010-08-1009:59

HouseN

24519SVF24519 N

EPTUN

E AVE2010-08-10

10:47Front

N24519SVB

24519 NEPTU

NE AVE

2012-06-2914:47

BackN

24519SVBD24519 N

EPTUN

E AVE2012-06-29

14:47Back

N24519SVH

24519 NEPTU

NE AVE

2012-06-2914:56

HouseN

24519SVF24519 N

EPTUN

E AVE2012-06-29

15:26Front

P24519SVH24519 PAN

AMA AVE

2010-10-1800:00

HouseP24519SVF

24519 PANAM

A AVE2010-10-18

13:31Front

P24519SVFS24519 PAN

AMA AVE

2010-10-1813:31

FrontP24519SVB

24519 PANAM

A AVE2010-10-18

14:14Back

P24519SVBS24519 PAN

AMA AVE

2010-10-1814:14

BackP24519SVB

24519 PANAM

A AVE2013-06-06

14:48Back

P24519SVH24519 PAN

AMA AVE

2013-06-0614:48

HouseP24519SVF

24519 PANAM

A AVE2013-06-06

15:10Front

IsopropanolHexane

p/m-Xylene

C6-C8 Aliphatics

1,2,4-Trim

ethyl-benzene

HeptaneC8-C10

AliphaticsC10-C12

AliphaticsC5-C6

AliphaticsEthyl-

benzene

Cumene

(Isopropyl-benzene)

CyclohexaneFreon 11

Methylene

Chloride4-Ethyltoluene

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

4.47%3.74%

3.12%2.72%

2.63%2.63%

2.54%2.01%

2.01%1.97%

1.89%1.89%

1.72%1.72%

1.60%

< 7.6< 2.7

< 3.4< 64

< 3.8< 3.2

< 90< 110

< 50< 3.4

< 3.8< 2.7

< 4.4< 27

< 3.8< 7.6

< 2.7< 3.4

< 64< 3.8

< 3.2< 90

< 110< 50

< 3.4< 3.8

< 2.7< 4.4

< 27< 3.8

< 7.6< 2.7

< 3.4< 64

< 3.8< 3.2

< 90< 110

< 50< 3.4

< 3.8< 2.7

< 4.4< 27

< 3.8< 7.6

< 2.7< 3.4

< 64< 3.8

< 3.2< 90

< 110< 50

< 3.4< 3.8

< 2.7< 4.4

< 27< 3.8

< 11< 4

< 5< 94 N

,J< 5.6

< 4.7< 130 N

,J< 160 N

,J< 74 N

,J< 5

< 5.6< 4

< 6.5< 4

< 5.6< 11

< 4.1< 5

< 95 N,J

< 5.7< 4.8

< 140 N,J

< 160 N,J

< 75 N,J

< 5< 5.7

< 4< 6.5

< 4< 5.7

< 11< 4.1

< 5< 95 N

,J< 5.7

< 4.8< 140 N

,J< 160 N

,J< 75 N

,J< 5

< 5.7< 4

< 6.5< 4

< 5.7< 12

< 4.3< 5.2

< 99< 5.9

< 5< 140

< 170< 78

< 5.2< 5.9

< 4.2< 6.8

< 4.2< 5.9

< 7.9< 2.8

< 3.5< 66

< 3.9< 3.3

< 93< 110

< 52< 3.5

< 3.9< 2.8

< 4.5< 2.8

< 3.9< 8.2

< 3< 3.6

< 69< 4.1

< 3.4< 98

< 120< 54

< 3.6< 4.1

< 2.9< 4.7

< 2.9< 4.1

< 8.3< 3

< 3.7< 69

< 4.2< 3.5

< 98< 120

< 55< 3.7

< 4.2< 2.9

< 4.7< 2.9

< 4.2< 7.7

< 2.7< 3.4

< 64< 3.8

< 3.2< 91

< 110< 50

< 3.4< 3.8

< 2.7< 4.4

< 2.7< 3.8

< 7.7< 2.7

< 3.4< 64

< 3.8< 3.2

< 91< 110

< 50< 3.4

< 3.8< 2.7

< 4.4< 2.7

< 3.8< 7.6

< 2.7< 3.4

< 64< 3.8

< 3.2< 90

< 110< 50

< 3.4< 3.8

< 2.7< 4.4

< 27< 3.8

< 7.6< 2.7

< 3.4< 64

< 3.8< 3.2

150110

< 50< 3.4

< 3.8< 2.7

< 4.4< 27

< 3.8< 7.6

< 2.716

< 64< 3.8

< 3.2< 90

< 110< 50

4.9< 3.8

< 2.7< 4.4

< 27< 3.8

< 11< 4

< 5< 94

< 5.6< 4.7

< 130< 160

< 74< 5

< 5.6< 4

< 6.5< 40

< 5.6< 12

< 4.2< 5.2

< 98< 5.9

< 4.9< 140

< 170< 78

< 5.2< 5.9

< 4.1< 6.7

< 42< 5.9

< 11< 4

< 5< 93

< 5.6< 4.7

< 130< 160

< 74< 4.9

< 5.6< 3.9

< 6.4< 40

< 5.6< 12

< 4.3< 5.2

< 99 N,J

< 5.9< 5

< 140 N,J

< 170 N,J

< 78 N,J

< 5.26

< 4.2< 6.8

< 4.2< 5.9

< 11< 4

< 5< 94 N

,J< 5.6

< 4.7< 130 N

,J< 160 N

,J< 74 N

,J< 5

< 5.6< 4

< 6.5< 4

< 5.6< 11

< 4.1< 5

< 95 N,J

< 5.7< 4.8

< 140 N,J

< 160 N,J

< 75 N,J

< 5< 5.7

< 4< 6.5

< 4< 5.7

< 11< 3.8

< 4.7< 88

< 5.3< 4.4

< 120< 150

< 70< 4.7

< 5.3< 3.7

< 6.1< 38

< 5.3< 11

< 4< 5

< 93< 5.6

< 4.7< 130

< 160< 74

< 4.9< 5.6

< 3.9< 6.4

< 40< 5.6

< 12< 4.4

< 5.4< 100

< 6.1< 5.1

< 140< 170

< 81< 5.4

< 6.1< 4.3

< 7< 43

< 6.1< 12

< 4.4< 5.4

< 100< 6.2

< 5.1< 150

< 170< 81

< 5.4< 6.2

< 4.3< 7

< 44< 6.2

< 12< 4.3

< 5.3< 100

< 6< 5

< 140< 170

< 80< 5.3

< 6< 4.2

< 6.9< 43

< 6< 12

< 4.4< 5.4

< 100< 6.1

< 5.1< 140

< 170< 81

< 5.4< 6.1

< 4.3< 7

< 43< 6.1

< 13< 4.5

< 5.6< 100

< 6.3< 5.3

< 150< 180

< 84< 5.6

< 6.3< 4.4

< 7.2< 45

< 6.3< 12

< 4.2< 5.2

< 98< 5.8

< 4.9< 140

< 160< 77

< 5.2< 5.8

< 4.1< 6.7

< 41< 5.8

< 11< 4.1

< 5< 95 N

,J< 5.7

< 4.8< 140 N

,J< 160 N

,J< 75 N

,J< 5

< 5.7< 4

< 6.5< 4

< 5.7< 12

< 4.3< 5.2

< 99 N,J

< 5.9< 5

< 140 N,J

< 170 N,J

< 78 N,J

< 5.2< 5.9

< 4.2< 6.8

< 4.2< 5.9

< 11< 3.9

< 4.8< 91 N

,J< 5.5

< 4.6< 130 N

,J< 160 N

,J< 72 N

,J< 4.8

< 5.5< 3.8

< 6.3< 3.9

< 5.5< 7.1

< 2.5< 3.1

< 59< 3.5 PF

< 3< 84

< 100< 47

< 3.1< 3.5

< 2.5< 4

< 25< 3.5

< 7.1< 2.5

< 3.1< 59

< 3.5 PF< 3

< 84< 100

< 47< 3.1

< 3.5< 2.5

< 4< 25

< 3.5< 7.8

< 2.8< 3.4

< 65< 3.9 PF

< 3.2< 92

< 110< 51

< 3.4< 3.9

< 2.7< 4.4

< 27< 3.9

14< 3

< 3.6< 69

< 4.1 PF< 3.4

< 98< 120

< 54< 3.6

< 4.1< 2.9

< 4.7< 29

< 4.1< 12

< 4.1< 5.1

< 96 N,J

< 5.8< 4.8

< 140 N,J

< 160 N,J

< 76 N,J

< 5.1< 5.8

< 4< 6.6

< 4.1< 5.8

< 11< 4.1

< 5< 95 N

,J< 5.7

< 4.8< 140 N

,J< 160 N

,J< 75 N

,J< 5

< 5.7< 4

< 6.54.3

< 5.7< 12

< 4.3< 5.2

< 99 N,J

< 5.9< 5

< 140 N,J

< 170 N,J

< 78 N,J

< 5.2< 5.9

< 4.2< 6.8

< 4.2< 5.9

< 8.2< 3

< 3.6< 69

< 4.1< 3.4

< 98< 120

< 54< 3.6

< 4.1< 2.9

< 4.7< 29

< 4.1< 8.1

< 2.9< 3.6

< 67< 4

< 3.4< 95

< 110< 53

< 3.6< 4

< 2.8< 4.6

< 28< 4

< 7.6< 2.7

< 3.4< 64

< 3.8< 3.2

< 90< 110

< 50< 3.4

< 3.8< 2.7

< 4.4< 27

< 3.8< 8.2

< 3< 3.6

< 69< 4.1

< 3.4< 98

< 120< 54

< 3.6< 4.1

< 2.9< 4.7

< 29< 4.1

< 11< 4.1

< 5< 95

< 5.7< 4.8

< 140< 160

< 75< 5

< 5.7< 4

< 6.5< 4

< 5.7< 11

< 4< 5

< 94< 5.6

< 4.7< 130

< 160< 74

< 5< 5.6

< 3.9< 6.4

< 4< 5.6

4< 1.6

< 3.3< 1.6

< 1.6< 1.6

< 1.6< 3.3

< 1.6< 1.6

< 1.6< 11

< 4< 5

< 94< 5.6

< 4.7< 130

< 160< 74

< 5< 5.6

< 3.9< 6.4

< 4< 5.6

< 3.4< 1.7

< 3.4< 1.7

< 1.7< 1.7

< 1.7< 3.4

< 1.7< 1.7

< 1.7< 11

< 4< 4.9

< 93< 5.6

< 4.6< 130

< 160< 73

< 4.9< 5.6

< 3.9< 6.4

< 39< 5.6

< 12< 4.4

< 5.4< 100

< 6.1< 5.1

< 140< 170

< 80< 5.4

< 6.1< 4.3

< 7< 43

< 6.1< 12

< 4.3< 5.3

< 100< 6

< 5< 140

< 170< 79

< 5.3< 6

< 4.2< 6.9

< 42< 6

Page 293: Table Proposed Cleanup Levels Groundwater · 10/21/2013  · Table 04 Summery of PrsllMnery Cost ES11motee for Soleening Feasibility Study Former Kest Property Carson, CA GeotFnlenGOneullanle

Table B-2Sub-Slab Soil Vapor Results

Former Kast Property

Carson, California

Residential Properties Sampled Through August 31, 2013

Page 61 of 235

Sample ID

AddressSam

ple Date

Sample Tim

eLocation

AnalyteU

nitsFrequency of D

etection

M24522SVH

24522 MARBELLA AVE

2010-04-3009:04

HouseM

24522SVB24522 M

ARBELLA AVE2010-04-30

09:57Back

M24522SVF

24522 MARBELLA AVE

2010-04-3010:58

FrontM

24522SVFD24522 M

ARBELLA AVE2010-04-30

10:58Front

M24522SVG

24522 MARBELLA AVE

2010-10-1309:08

FrontM

24522SVH24522 M

ARBELLA AVE2010-10-13

10:04House

M24522SVB

24522 MARBELLA AVE

2010-10-1311:35

BackM

24522SVF24522 M

ARBELLA AVE2012-04-20

10:30Front

M24522SVH

24522 MARBELLA AVE

2012-04-2010:32

HouseM

24522SVB24522 M

ARBELLA AVE2012-04-20

11:11Back

M24522SVBD

24522 MARBELLA AVE

2012-04-2011:11

BackN

24522SVH24522 N

EPTUN

E AVE2010-06-15

14:13House

N24522SVF

24522 NEPTU

NE AVE

2010-06-1514:59

FrontN

24522SVH24522 N

EPTUN

E AVE2011-02-02

13:54House

N24522SVBA

24522 NEPTU

NE AVE

2011-02-0214:25

BackN

24522SVF24522 N

EPTUN

E AVE2011-02-02

14:57Front

N24522SVH

24522 NEPTU

NE AVE

2012-04-0509:57

HouseN

24522SVF24522 N

EPTUN

E AVE2012-04-05

09:59Front

N24522SVFD

24522 NEPTU

NE AVE

2012-04-0509:59

FrontN

24522SVBA24522 N

EPTUN

E AVE2012-04-05

10:55Back

N24522SVH

24522 NEPTU

NE AVE

2013-06-0609:52

HouseN

24522SVBA24522 N

EPTUN

E AVE2013-06-06

10:09Back

N24522SVBAS

24522 NEPTU

NE AVE

2013-06-0610:09

BackN

24522SVFS24522 N

EPTUN

E AVE2013-06-06

10:20Front

P24522SVG24522 PAN

AMA AVE

2010-06-0912:59

Garage

P24522SVB24522 PAN

AMA AVE

2010-06-0914:01

BackP24522SVH

24522 PANAM

A AVE2010-06-17

12:25House

P24522SVHS24522 PAN

AMA AVE

2010-06-1712:25

HouseP24522SVB

24522 PANAM

A AVE2013-03-22

15:11Back

P24522SVBD24522 PAN

AMA AVE

2013-03-2215:11

BackP24522SVH

24522 PANAM

A AVE2013-03-22

15:19House

P24522SVG24522 PAN

AMA AVE

2013-03-2215:54

Garage

R24522SVH24522 RAVEN

NA AVE

2010-11-0113:28

HouseR24522SVG

24522 RAVENN

A AVE2010-11-01

14:02G

arageR24522SVB

24522 RAVENN

A AVE2010-11-01

14:41Back

R24522SVG24522 RAVEN

NA AVE

2012-08-2315:00

Garage

R24522SVH24522 RAVEN

NA AVE

2012-08-2315:08

HouseR24522SVB

24522 RAVENN

A AVE2012-08-23

15:29Back

R24522SVH24522 RAVEN

NA AVE

2013-05-2109:54

HouseR24522SVB

24522 RAVENN

A AVE2013-05-21

09:59Back

R24522SVBD24522 RAVEN

NA AVE

2013-05-2109:59

BackR24522SVG

24522 RAVENN

A AVE2013-05-21

10:33G

arageM

24523SVH24523 M

ARBELLA AVE2010-11-11

14:28House

M24523SVG

24523 MARBELLA AVE

2010-11-1115:24

Garage

M24523SVB

24523 MARBELLA AVE

2010-11-1115:51

BackM

24523SVB24523 M

ARBELLA AVE2012-04-24

14:30Back

M24523SVG

24523 MARBELLA AVE

2012-04-2710:08

Garage

M24523SVG

D24523 M

ARBELLA AVE2012-04-27

10:08G

arageM

24523SVH24523 M

ARBELLA AVE2012-04-27

10:09House

M24523SVB

24523 MARBELLA AVE

2012-04-2710:46

BackM

24523SVH24523 M

ARBELLA AVE2013-08-28

09:42House

M24523SVB

24523 MARBELLA AVE

2013-08-2809:43

Back

IsopropanolHexane

p/m-Xylene

C6-C8 Aliphatics

1,2,4-Trim

ethyl-benzene

HeptaneC8-C10

AliphaticsC10-C12

AliphaticsC5-C6

AliphaticsEthyl-

benzene

Cumene

(Isopropyl-benzene)

CyclohexaneFreon 11

Methylene

Chloride4-Ethyltoluene

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

4.47%3.74%

3.12%2.72%

2.63%2.63%

2.54%2.01%

2.01%1.97%

1.89%1.89%

1.72%1.72%

1.60%

< 11< 4

< 5< 94 N

,J< 5.6

< 4.7< 130 N

,J< 160 N

,J< 74 N

,J< 5

< 5.6< 4

< 6.5< 4

< 5.6< 12

< 4.319

< 99 N,J

< 5.9< 5

< 140 N,J

< 170 N,J

< 78 N,J

11< 5.9

< 4.2< 6.8

< 4.2< 5.9

< 12< 4.2

< 5.2< 98 N

,J< 5.9

< 4.9< 140 N

,J< 170 N

,J< 77 N

,J< 5.2

< 5.9< 4.1

< 6.7< 4.2

< 5.9< 12

< 4.2< 5.1

< 97 N,J

< 5.8< 4.8

< 140 N,J

< 160 N,J

< 77 N,J

< 5.1< 5.8

< 4.1< 6.6

< 4.1< 5.8

< 11< 4

< 5< 94

< 5.6< 4.7

< 130< 160

< 74< 5

< 5.6< 4

< 6.5< 4

< 5.6< 10

< 3.8< 4.7

< 88< 5.3

< 4.4< 120

< 150< 70

< 4.7< 5.3

< 3.7< 6

< 3.7< 5.3

< 13< 4.6

< 5.6< 110

< 6.4< 5.3

< 150< 180

< 84< 5.6

< 6.4< 4.4

< 7.3< 4.5

< 6.4< 9.7

< 3.5< 4.3

< 81< 4.9

< 4< 120

< 140 PF< 64

< 4.3< 4.9

< 3.4< 5.6

< 34< 4.9

< 7.6< 2.7

< 3.4< 64

< 3.8< 3.2

< 90< 110 PF

< 50< 3.4

< 3.8< 2.7

< 4.4< 27

< 3.8< 8.4

< 3< 3.7

< 70< 4.2

< 3.5< 100

< 120 PF< 55

< 3.7< 4.2

< 2.9< 4.8

< 30< 4.2

< 8.2< 3

< 3.6< 69

< 4.1< 3.4

< 98< 120 PF

< 54< 3.6

< 4.1< 2.9

< 4.7< 29

< 4.1< 11

< 4< 4.9

< 93 N,J

< 5.6< 4.6

< 130 N,J

< 160 N,J

< 73 N,J

< 4.9< 5.6

< 3.9< 6.3

< 3.9< 5.6

< 12< 4.2

< 5.2< 99 N

,J< 5.9

< 4.9< 140 N

,J< 170 N

,J< 78 N

,J< 5.2

< 5.9< 4.1

< 6.8< 4.2

< 5.9< 11

< 3.9< 4.9

< 92< 5.5

< 4.6< 130

< 160< 72

< 4.9< 5.5

< 3.8< 6.3

< 3.9< 5.5

< 11< 3.9

< 4.8< 90

< 5.4< 4.5

< 130< 150

< 72< 4.8

< 5.4< 3.8

< 6.2< 3.8

< 5.421

< 4.2< 5.2

< 98< 5.9

< 4.9< 140

< 170< 77

< 5.2< 5.9

< 4.1< 6.7

< 4.27.2

< 8.2< 3

< 3.6< 69

< 4.1< 3.4

< 98< 120

< 54< 3.6

< 4.1< 2.9

< 4.7< 29

< 4.1< 8.2

< 3< 3.6

< 69< 4.1

< 3.4< 98

< 120< 54

< 3.6< 4.1

< 2.9< 4.7

< 29< 4.1

< 8.2< 3

< 3.6< 69

< 4.1< 3.4

< 98< 120

< 54< 3.6

< 4.1< 2.9

< 4.7< 29

< 4.1< 8.4

< 3< 3.7

< 70< 4.2

< 3.5< 100

< 120< 55

< 3.7< 4.2

< 2.9< 4.8

< 30< 4.2

< 12< 4.4

< 5.4< 100

< 6.1< 5.1

< 140< 170

< 81< 5.4

< 6.1< 4.3

< 7< 43

< 6.1< 11

< 4< 5

< 93< 5.6

< 4.7< 130

< 160< 74

< 4.9< 5.6

< 3.9< 6.4

< 40< 5.6

< 19 U< 1.9 U

< 3.9 U< 1.9 U

< 1.9 U< 1.9 U

< 1.9 U< 3.9 U

< 1.9 U< 1.9 U

< 1.9 U< 19 U

< 1.9 U< 3.8 U

< 1.9 U< 1.9 U

< 1.9 U< 1.9 U

< 3.8 U< 1.9 U

< 1.9 U< 1.9 U

< 12< 4.4

< 5.4< 100 N

,J< 6.1

< 5.1< 140 N

,J< 170 N

,J< 80 N

,J< 5.4

< 6.1< 4.3

< 7< 4.3

< 6.1< 12

< 4.2< 5.1

< 97 N,J

< 5.8< 4.8

< 140 N,J

< 160 N,J

< 77 N,J

< 5.1< 5.8

< 4.1< 6.6

< 4.1< 5.8

< 12< 4.3

< 5.2< 99 N

,J< 5.9

< 5< 140 N

,J< 170 N

,J< 78 N

,J< 5.2

< 5.9< 4.2

< 6.8< 4.2

< 5.9< 3.5

< 1.8< 3.5

< 1.8< 1.8

< 1.8< 1.8

< 3.5< 1.8

< 1.8< 1.8

< 12< 4.2

< 5.1< 97

< 5.8< 4.8

< 140< 160

< 77< 5.1

< 5.8< 4.1

< 6.6< 41

< 5.8< 12

< 4.2< 5.2

< 99< 5.9

< 4.9< 140

< 170< 78

< 5.2< 5.9

< 4.1< 6.8

< 42< 5.9

< 12< 4.1

< 5.1< 96

< 5.8< 4.8

< 140< 160

< 76< 5.1

< 5.8< 4

< 6.6< 41

< 5.8< 11

< 3.9< 4.8

< 91< 5.4

< 4.5< 130

< 150< 72

< 4.8< 5.4

< 3.8< 6.2

< 38< 5.4

< 11< 4

< 5< 94

< 5.6< 4.7

< 130< 160

< 74< 5

< 5.6< 3.9

< 6.4< 4

< 5.6< 12

< 4.2< 5.2

< 98< 5.8

< 4.9< 140

< 160< 77

< 5.2< 5.8

< 4.1< 6.7

< 4.1< 5.8

< 11< 4.1

< 5< 95

< 5.7< 4.8

< 140< 160

< 75< 5

< 5.7< 4

< 6.5< 4

< 5.7< 12

< 4.4< 5.5

< 100< 6.2

< 5.2< 150

< 180< 82

< 5.5< 6.2

< 4.3< 7.1

< 44< 6.2

315.5

< 5.2< 99

< 5.95.1

< 140< 170

< 78< 5.2

< 5.9< 4.2

< 6.8< 42

< 5.9< 13

< 4.5< 5.6

180< 6.3

< 5.3230

< 180< 84

< 5.6< 6.3

< 4.4< 7.2

< 45< 6.3

< 11< 4

< 5< 94

< 5.6< 4.7

< 130< 160

< 74< 5

< 5.6< 4

< 6.5< 40

< 5.6< 12

< 4.3< 5.2

< 99< 5.9

< 5< 140

< 170< 78

< 5.2< 5.9

< 4.2< 6.8

< 42< 5.9

< 12< 4.2

< 5.2< 98

< 5.9< 4.9

< 140< 170

< 77< 5.2

< 5.9< 4.1

< 6.7< 42

< 5.9< 12

< 4.1< 5.1

< 96< 5.8

< 4.8< 140

< 160< 76

< 5.1< 5.8

< 4< 6.6

< 41< 5.8

< 12< 4.3

< 5.2< 99

< 5.9< 5

< 140< 170

< 78< 5.2

< 5.9< 4.2

< 6.8< 4.2

< 5.9< 11

< 45.4

< 93< 5.6

< 4.6< 130

< 160< 73

< 4.9< 5.6

< 3.9< 6.3

< 3.9< 5.6

< 12< 4.3

< 5.3< 100

< 6< 5

< 140< 170

< 80< 5.3

< 6< 4.2

< 6.9< 4.3

< 6< 7.8

< 2.8< 3.4

< 65< 3.9

< 3.2< 92

< 110< 51

< 3.4< 3.9

< 2.7< 4.4

< 27< 3.9

< 7.5< 2.7

< 3.3< 62

< 3.7< 3.1

< 88< 100

< 49< 3.3

< 3.7< 2.6

< 4.3< 26

< 3.7< 7.5

< 2.7< 3.3

< 62< 3.7

< 3.1< 88

< 100< 49

< 3.3< 3.7

< 2.6< 4.3

< 26< 3.7

< 7.3< 2.6

< 3.2< 61

< 3.7< 3

< 87< 100

< 48< 3.2

< 3.7< 2.6

< 4.2< 26

< 3.7< 7.5

< 2.7< 3.3

< 62< 3.7

< 3.1< 88

< 100< 49

< 3.3< 3.7

< 2.6< 4.3

< 26< 3.7

< 11< 4.1

< 5< 95

< 5.7< 4.8

< 140< 160

< 75< 5

< 5.7< 4

< 6.5< 40

< 5.7< 11

< 3.9< 4.8

< 91< 5.4

< 4.5< 130

< 150< 72

< 4.8< 5.4

< 3.8< 6.2

< 38< 5.4

Page 294: Table Proposed Cleanup Levels Groundwater · 10/21/2013  · Table 04 Summery of PrsllMnery Cost ES11motee for Soleening Feasibility Study Former Kest Property Carson, CA GeotFnlenGOneullanle

Table B-2Sub-Slab Soil Vapor Results

Former Kast Property

Carson, California

Residential Properties Sampled Through August 31, 2013

Page 62 of 235

Sample ID

AddressSam

ple Date

Sample Tim

eLocation

AnalyteU

nitsFrequency of D

etection

M24523SVG

24523 MARBELLA AVE

2013-08-2810:08

Garage

N24523SVH

24523 NEPTU

NE AVE

2010-04-0714:40

HouseN

24523SVF24523 N

EPTUN

E AVE2010-04-07

15:41Front

N24523SVB

24523 NEPTU

NE AVE

2010-04-0716:36

BackN

24523SVH24523 N

EPTUN

E AVE2012-10-04

09:56House

N24523SVF

24523 NEPTU

NE AVE

2012-10-0410:37

FrontN

24523SVB24523 N

EPTUN

E AVE2012-10-04

10:50Back

N24523SVBS

24523 NEPTU

NE AVE

2012-10-0410:50

BackN

24523SVH24523 N

EPTUN

E AVE2013-02-22

10:20House

N24523SVHS

24523 NEPTU

NE AVE

2013-02-2210:20

HouseN

24523SVB24523 N

EPTUN

E AVE2013-02-22

10:36Back

N24523SVBS

24523 NEPTU

NE AVE

2013-02-2210:36

BackN

24523SVF24523 N

EPTUN

E AVE2013-02-22

11:09Front

N24523SVFD

24523 NEPTU

NE AVE

2013-02-2211:09

FrontR24523SVF

24523 RAVENN

A AVE2009-11-08

10:58Front

R24523SVFS24523 RAVEN

NA AVE

2009-11-0810:58

FrontR24523SVBa

24523 RAVENN

A AVE2009-12-03

16:11Back

R24523SVH24523 RAVEN

NA AVE

2010-08-2409:54

HouseR24523SVF

24523 RAVENN

A AVE2010-08-24

10:58Front

R24523SVB24523 RAVEN

NA AVE

2010-08-2411:00

BackR24523SVH

24523 RAVENN

A AVE2011-03-25

09:23House

M24526SVH

24526 MARBELLA AVE

2010-10-1313:28

HouseM

24526SVG24526 M

ARBELLA AVE2010-10-13

14:08G

arageM

24526SVB24526 M

ARBELLA AVE2010-10-13

14:51Back

M24526SVH

24526 MARBELLA AVE

2012-04-1910:00

HouseM

24526SVG24526 M

ARBELLA AVE2012-04-19

10:36G

arageM

24526SVGD

24526 MARBELLA AVE

2012-04-1910:36

Garage

M24526SVB

24526 MARBELLA AVE

2012-04-1910:41

BackN

24528SVH24528 N

EPTUN

E AVE2010-11-03

09:42House

N24528SVG

24528 NEPTU

NE AVE

2010-11-0310:25

Garage

N24528SVB

24528 NEPTU

NE AVE

2010-11-0311:34

BackN

24528SVH24528 N

EPTUN

E AVE2012-03-08

10:40House

N24528SVG

24528 NEPTU

NE AVE

2012-03-0811:17

Garage

N24528SVG

D24528 N

EPTUN

E AVE2012-03-08

11:17G

arageN

24528SVH24528 N

EPTUN

E AVE2013-08-20

10:26House

N24528SVBA

24528 NEPTU

NE AVE

2013-08-2010:39

BackN

24528SVBAS24528 N

EPTUN

E AVE2013-08-20

10:39Back

N24528SVG

24528 NEPTU

NE AVE

2013-08-2010:48

Garage

N24529SVH

24529 NEPTU

NE AVE

2010-11-1912:48

HouseN

24529SVF24529 N

EPTUN

E AVE2010-11-19

13:22Front

N24529SVH

24529 NEPTU

NE AVE

2011-03-0710:32

HouseN

24529SVF24529 N

EPTUN

E AVE2011-03-07

11:12Front

N24529SVF

24529 NEPTU

NE AVE

2012-03-0209:58

FrontN

24529SVFD24529 N

EPTUN

E AVE2012-03-02

09:58Front

N24529SVP

24529 NEPTU

NE AVE

2012-03-0210:19

ParkingN

24529SVH24529 N

EPTUN

E AVE2012-03-02

10:41House

N24529SVH

24529 NEPTU

NE AVE

2013-08-2309:45

HouseN

24529SVF24529 N

EPTUN

E AVE2013-08-23

09:53Front

N24529SVFS

24529 NEPTU

NE AVE

2013-08-2309:53

FrontN

24529SVP24529 N

EPTUN

E AVE2013-08-23

10:32Parking

P24529SVB24529 PAN

AMA AVE

2012-05-1710:17

BackP24529SVBS

24529 PANAM

A AVE2012-05-17

10:17Back

IsopropanolHexane

p/m-Xylene

C6-C8 Aliphatics

1,2,4-Trim

ethyl-benzene

HeptaneC8-C10

AliphaticsC10-C12

AliphaticsC5-C6

AliphaticsEthyl-

benzene

Cumene

(Isopropyl-benzene)

CyclohexaneFreon 11

Methylene

Chloride4-Ethyltoluene

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

4.47%3.74%

3.12%2.72%

2.63%2.63%

2.54%2.01%

2.01%1.97%

1.89%1.89%

1.72%1.72%

1.60%

< 12< 4.2

< 5.1< 97

< 5.8< 4.8

< 140< 160

< 77< 5.1

< 5.8< 4.1

13< 41

< 5.8< 11

< 4< 5

< 94 N,J

< 5.6< 4.7

< 130 N,J

< 160 N,J

< 74 N,J

< 5< 5.6

< 4< 6.5

< 4< 5.6

< 12< 4.2

< 5.2< 99 N

,J< 5.9

< 4.9< 140 N

,J< 170 N

,J< 78 N

,J< 5.2

< 5.9< 4.1

< 6.8< 4.2

< 5.9< 12

< 4.3< 5.2

< 99 N,J

< 5.9< 5

< 140 N,J

< 170 N,J

< 78 N,J

< 5.2< 5.9

< 4.2< 6.8

< 4.2< 5.9

< 12< 4.2

< 5.2< 98

< 5.9< 4.9

< 140< 170

< 77< 5.2

< 5.9< 4.1

< 6.7< 42

< 5.9< 10

4.1< 4.6

< 87< 5.2

< 4.3< 120

< 150< 69

< 4.6< 5.2

< 3.6< 6

< 37< 5.2

< 11< 4

< 5< 94

< 5.6< 4.7

< 130< 160

< 74< 5

< 5.6< 4

< 6.5< 40

< 5.6< 20 U

< 2 U< 4 U

< 2 U< 2 U

< 2 U< 2 U

< 4 U< 2 U

< 2 U< 2 U

< 12< 4.3

< 5.2< 99

< 5.9< 5

< 140< 170

< 78< 5.2

< 5.9< 4.2

< 6.8< 42

< 5.9< 20 U

< 2 U< 4.1 U

< 2 U< 2 U

< 2 U< 2 U

< 4.1 U< 2 U

< 2 U< 2 U

< 11< 4.1

< 5< 95

< 5.7< 4.8

< 140< 160

< 75< 5

< 5.7< 4

< 6.5< 40

< 5.7< 20 U

< 2 U< 4 U

< 2 U< 2 U

< 2 U< 2 U

< 4 U< 2 U

< 2 U< 2 U

< 11< 4.1

< 5< 95

< 5.7< 4.8

< 140< 160

< 75< 5

< 5.7< 4

< 6.5< 40

< 5.7< 11

< 4.1< 5

< 95< 5.7

< 4.8< 140

< 160< 75

< 5< 5.7

< 4< 6.5

< 40< 5.7

< 11< 3.8

< 4.7< 5.3

< 4.4< 4.7

< 5.3< 3.7

< 6.1< 3.8

< 5.30.95 J

< 1.9< 3.8

< 1.9< 1.9

< 1.91.4 J

< 3.81.3 J

< 1.9< 1.9

< 10< 3.8

< 4.6430 N

,J< 5.2

< 4.4230 N

,J530 N

,J290 N

,J< 4.6

1632

< 6< 3.7

< 5.2< 12

< 4.2< 5.1

< 97< 5.8

< 4.8< 140

< 160< 77

< 5.1< 5.8

< 4.1< 6.6

< 4.1< 5.8

< 11< 4.1

< 5< 95

< 5.7< 4.7

< 130< 160

< 75< 5

< 5.7< 4

< 6.5< 4

< 5.7< 12

< 4.2< 5.2

< 98< 5.9

< 4.9< 140

< 170< 77

< 5.2< 5.9

< 4.1< 6.7

4.2< 5.9

< 11< 4.1

< 5< 95

< 5.7< 4.8

< 140< 160

< 75< 5

< 5.7< 4

< 6.5< 4

< 5.7< 12

< 4.2< 5.1

< 97< 5.8

< 4.8< 140

< 160< 77

< 5.1< 5.8

< 4.1< 6.6

< 4.1< 5.8

< 9.9< 3.6

< 4.4< 83

< 5< 4.1

< 120< 140

< 65< 4.4

< 5< 3.5

< 5.7< 3.5

< 5< 11

< 4.1< 5

< 95< 5.7

< 4.8< 140

< 160< 75

< 5< 5.7

< 4< 6.5

< 4< 5.7

< 7.9< 2.8

< 3.5< 66

< 4< 3.3

< 94< 110 PF

< 52< 3.5

< 4< 2.8

< 4.5< 28

< 4< 7.6

< 2.7< 3.4

< 64< 3.8

< 3.2< 90

< 110 PF< 50

< 3.4< 3.8

< 2.7< 4.4

< 27< 3.8

< 7.6< 2.7

< 3.4< 64

< 3.8< 3.2

< 90< 110 PF

< 50< 3.4

< 3.8< 2.7

< 4.4< 27

< 3.8< 8.2

< 3< 3.6

< 69< 4.1

< 3.4< 98

< 120 PF< 54

< 3.6< 4.1

< 2.9< 4.7

< 29< 4.1

< 12< 4.2

< 5.2< 98

< 5.9< 4.9

< 140< 170

< 78< 5.2

< 5.9< 4.1

< 6.7< 4.2

< 5.9< 12

< 4.2< 5.1

< 97< 5.8

< 4.8< 140

< 160< 77

< 5.1< 5.8

< 4.1< 6.6

< 4.1< 5.8

< 11< 4

< 5< 93

< 5.6< 4.7

< 130< 160

< 74< 4.9

< 5.6< 3.9

< 6.4< 4

< 5.6< 7.2

< 2.64.7

< 60< 3.6

< 3< 85

< 100< 47

< 3.2< 3.6

< 2.5< 4.1

< 25< 3.6

< 7.9< 2.8

< 3.5< 66

< 4< 3.3

< 94< 110

< 52< 3.5

< 4< 2.8

< 4.5< 28

< 4< 7.9

4< 3.5

< 66< 4

4.9< 94

< 110< 52

< 3.5< 4

< 2.8< 4.5

< 28< 4

< 11< 4

< 5< 94

< 5.6< 4.7

< 130< 160

< 74< 5

< 5.6< 4

< 6.5< 40

< 5.6< 11

< 4< 5

< 94< 5.6

< 4.7< 130

< 160< 74

< 5< 5.6

< 3.9< 6.4

< 40< 5.6

< 19 U< 1.9 U

< 3.9 U< 1.9 U

< 1.9 U< 1.9 U

< 1.9 U< 3.9 U

< 1.9 U< 1.9 U

< 1.9 U< 11

< 4.1< 5

< 95< 5.7

< 4.8< 140

< 160< 75

< 5< 5.7

< 4< 6.5

< 40< 5.7

< 12< 4.4

< 5.4< 100

< 6.1< 5.1

< 140< 170

< 80< 5.4

< 6.1< 4.2

< 6.9< 4.3

< 6.1< 11

< 4< 5

< 94< 5.6

< 4.7< 130

< 160< 74

< 5< 5.6

< 3.9< 6.4

< 4< 5.6

< 11< 4

< 5< 93

< 5.6< 4.7

< 130< 160

< 74< 4.9

< 5.6< 3.9

< 6.4< 4

< 5.6< 12

< 4.1< 5.1

< 96< 5.8

< 4.8< 140

< 160< 76

< 5.1< 5.8

< 4< 6.6

< 4.1< 5.8

< 7.9< 2.8

< 3.5< 66

< 4< 3.3

< 94< 110

< 52< 3.5

< 4< 2.8

< 4.5< 28

< 4< 7.9

< 2.83.7

< 665.2

< 3.3< 94

< 110< 52

< 3.5< 4

< 2.8< 4.5

< 28< 4

< 8.4< 3

< 3.7< 70

< 4.2< 3.5

< 99< 120

< 55< 3.7

< 4.2< 2.9

< 4.8< 30

< 4.2< 8.6

< 3.1< 3.8

< 72< 4.3

< 3.6< 100

< 120< 57

< 3.8< 4.3

< 3< 4.9

< 30< 4.3

< 11< 4.1

< 5< 95

< 5.7< 4.8

< 140< 160

< 75< 5

< 5.7< 4

< 6.5< 40

< 5.7< 12

< 4.4< 5.5

< 100< 6.2

< 5.2< 150

< 180< 82

< 5.5< 6.2

< 4.3< 7.1

< 44< 6.2

< 22 U< 2.2 U

< 4.4 U< 2.2 U

< 2.2 U< 2.2 U

< 2.2 U< 4.4 U

< 2.2 U< 2.2 U

< 2.2 U< 11

< 4< 4.9

< 93< 5.6

< 4.6< 130

< 160< 73

< 4.9< 5.6

< 3.9< 6.3

< 39< 5.6

< 7.9< 2.8

< 3.5< 66

< 4< 3.3

< 94< 110

< 52< 3.5

< 4< 2.8

< 4.5< 28

< 4< 3.7 U

< 1.9 U< 3.7 U

< 1.9 U< 1.9 U

< 1.9 U< 1.9 U

< 3.7 U< 1.9 U

< 1.9 U< 1.9 U

Page 295: Table Proposed Cleanup Levels Groundwater · 10/21/2013  · Table 04 Summery of PrsllMnery Cost ES11motee for Soleening Feasibility Study Former Kest Property Carson, CA GeotFnlenGOneullanle

Table B-2Sub-Slab Soil Vapor Results

Former Kast Property

Carson, California

Residential Properties Sampled Through August 31, 2013

Page 63 of 235

Sample ID

AddressSam

ple Date

Sample Tim

eLocation

AnalyteU

nitsFrequency of D

etection

P24529SVF24529 PAN

AMA AVE

2012-05-1710:37

FrontP24529SVFS

24529 PANAM

A AVE2012-05-17

10:37Front

P24529SVHA24529 PAN

AMA AVE

2012-05-3108:20

HouseR24529SVF

24529 RAVENN

A AVE2011-08-18

14:54Front

R24529SVFS24529 RAVEN

NA AVE

2011-08-1814:54

FrontR24529SVH

24529 RAVENN

A AVE2011-08-18

15:25House

R24529SVHS24529 RAVEN

NA AVE

2011-08-1815:25

HouseR24529SVB

24529 RAVENN

A AVE2011-08-18

16:24Back

R24529SVBS24529 RAVEN

NA AVE

2011-08-1816:24

BackR24529SVH

24529 RAVENN

A AVE2013-08-02

14:48House

R24529SVB24529 RAVEN

NA AVE

2013-08-0214:54

BackR24529SVF

24529 RAVENN

A AVE2013-08-02

15:18Front

M24532SVB

24532 MARBELLA AVE

2009-10-0910:05

BackM

24532SVBS24532 M

ARBELLA AVE2009-10-09

10:05Back

M24532SVF

24532 MARBELLA AVE

2009-10-0911:40

FrontM

24532SVFS24532 M

ARBELLA AVE2009-10-09

11:40Front

M24532 SVH

24532 MARBELLA AVE

2011-09-2308:33

HouseM

24532 SVF24532 M

ARBELLA AVE2011-09-23

09:04Front

M24532 SVF D

24532 MARBELLA AVE

2011-09-2309:04

FrontM

24532 SVB24532 M

ARBELLA AVE2011-09-23

09:37Back

M24532SVH

24532 MARBELLA AVE

2012-04-0515:17

HouseM

24532SVF24532 M

ARBELLA AVE2012-04-05

15:24Front

M24532SVB

24532 MARBELLA AVE

2012-04-0515:56

BackM

24532SVBD24532 M

ARBELLA AVE2012-04-05

15:56Back

M24532SVH

24532 MARBELLA AVE

2013-08-2313:48

HouseM

24532SVF24532 M

ARBELLA AVE2013-08-23

13:54Front

M24532SVB

24532 MARBELLA AVE

2013-08-2314:18

BackN

24532SVG24532 N

EPTUN

E AVE2010-05-19

14:06G

arageN

24532SVH24532 N

EPTUN

E AVE2010-05-19

14:56House

N24532SVB2

24532 NEPTU

NE AVE

2010-09-0313:33

BackN

24532SVB2D24532 N

EPTUN

E AVE2010-09-03

13:33Back

N24532SVB2

24532 NEPTU

NE AVE

2013-03-0115:21

BackN

24532SVB2D24532 N

EPTUN

E AVE2013-03-01

15:21Back

N24532SVG

24532 NEPTU

NE AVE

2013-03-0115:59

Garage

N24532SVHB

24532 NEPTU

NE AVE

2013-06-1910:01

HouseN

24532SVB224532 N

EPTUN

E AVE2013-06-19

10:05Back

N24532SVB2D

24532 NEPTU

NE AVE

2013-06-1910:05

BackN

24532SVG24532 N

EPTUN

E AVE2013-06-19

10:33G

arageP24532SVG

24532 PANAM

A AVE2012-05-10

09:54G

arageP24532SVG

S24532 PAN

AMA AVE

2012-05-1009:54

Garage

P24532SVH24532 PAN

AMA AVE

2012-05-1009:54

HouseP24532SVB

24532 PANAM

A AVE2012-05-10

10:23Back

P24532SVBS24532 PAN

AMA AVE

2012-05-1010:23

BackP24532SVB

24532 PANAM

A AVE2013-08-21

14:40Back

P24532SVG24532 PAN

AMA AVE

2013-08-2115:11

Garage

P24532SVH24532 PAN

AMA AVE

2013-08-2115:51

HouseR24532SVB

24532 RAVENN

A AVE2010-08-18

13:25Back

R24532SVF24532 RAVEN

NA AVE

2010-08-1813:58

FrontR24532SVB

24532 RAVENN

A AVE2011-05-11

14:05Back

R24532SVF24532 RAVEN

NA AVE

2011-05-1115:02

FrontR24532SVFD

24532 RAVENN

A AVE2011-05-11

15:02Front

R24532SVH24532 RAVEN

NA AVE

2011-05-1115:48

House

IsopropanolHexane

p/m-Xylene

C6-C8 Aliphatics

1,2,4-Trim

ethyl-benzene

HeptaneC8-C10

AliphaticsC10-C12

AliphaticsC5-C6

AliphaticsEthyl-

benzene

Cumene

(Isopropyl-benzene)

CyclohexaneFreon 11

Methylene

Chloride4-Ethyltoluene

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

4.47%3.74%

3.12%2.72%

2.63%2.63%

2.54%2.01%

2.01%1.97%

1.89%1.89%

1.72%1.72%

1.60%

< 8.2< 3

< 3.6< 69

< 4.1< 3.4

< 98< 120

< 54< 3.6

< 4.1< 2.9

< 4.7< 29

< 4.1< 4 U

< 2 U< 4 U

< 2 U< 2 U

< 2 U< 2 U

< 4 U< 2 U

< 2 U< 2 U

< 7.8< 2.8

< 3.4< 65

< 3.9< 3.2

< 92< 110

< 51< 3.4

< 3.9< 2.7

< 4.4< 27

< 3.9< 12

< 4.3< 5.2

< 99< 5.9

< 5< 140

< 170< 78

< 5.2< 5.9

< 4.2< 6.8

< 4.2< 5.9

5.7< 1.7 U

< 3.5 U< 1.7 U

< 1.7 U< 1.7 U

< 1.7 U< 3.5 U

< 1.7 U< 1.7 U

< 1.7 U< 12

< 4.2< 5.1

< 97< 5.8

< 4.8< 140

< 160< 77

< 5.1< 5.8

< 4.1< 6.6

< 4.1< 5.8

< 3.5 U< 1.8 U

< 3.5 U< 1.8 U

< 1.8 U< 1.8 U

< 1.8 U< 3.5 U

< 1.8 U< 1.8 U

< 1.8 U< 12

< 4.3< 5.2

< 99< 5.9

< 5< 140

< 170< 78

< 5.2< 5.9

< 4.2< 6.8

< 4.2< 5.9

< 3.5 U< 1.8 U

5< 1.8 U

< 1.8 U< 1.8 U

< 1.8 U< 3.5 U

< 1.8 U< 1.8 U

< 1.8 U< 11

< 4< 5

< 93< 5.6

< 4.7< 130

< 160< 74

< 4.9< 5.6

< 3.9< 6.4

< 40< 5.6

< 12< 4.2

< 5.2< 99

< 5.9< 4.9

< 140< 170

< 78< 5.2

< 5.9< 4.1

< 6.8< 42

< 5.9< 11

< 4.1< 5

< 95< 5.7

< 4.8< 140

< 160< 75

< 5< 5.7

< 4< 6.5

< 40< 5.7

< 11< 4

< 5< 93 N

,J< 5.6

< 4.7< 130 N

,J< 160 N

,J< 74 N

,J< 4.9

< 5.6< 3.9

< 6.4< 4

< 5.68.7

< 2.3< 4.5

< 2.3< 2.3

< 2.31.9 J

< 4.51.2 J

< 2.3< 2.3

< 11< 3.9

< 4.9< 180 N

,J< 5.5

< 4.6< 260 N

,J< 310 N

,J< 150 N

,J< 4.9

< 5.5< 3.8

< 6.3< 3.9

< 5.5< 4

< 2< 4

< 2< 2

< 20.75 J

< 41.3 J

< 2< 2

< 12< 4.2

< 5.2< 98

< 5.9< 4.9

< 140< 170

< 78< 5.2

< 5.9< 4.1

< 6.7< 4.2

< 5.9< 12

< 4.2< 5.2

< 98< 5.9

< 4.9< 140

< 170< 78

< 5.2< 5.9

< 4.1< 6.7

< 4.2< 5.9

< 12< 4.2

< 5.2< 98

< 5.9< 4.9

< 140< 170

< 77< 5.2

< 5.9< 4.1

< 6.7< 4.2

< 5.9< 11

< 4.1< 5

< 95< 5.7

< 4.8< 140

< 160< 75

< 5< 5.7

< 4< 6.5

< 4< 5.7

< 7.8< 2.8

< 3.4< 65

< 3.9< 3.2

< 92< 110

< 51< 3.4

< 3.9< 2.7

< 4.4< 27

< 3.9< 7.6

< 2.7< 3.4

< 64< 3.8

< 3.2< 90

< 110< 50

< 3.4< 3.8

< 2.7< 4.4

< 27< 3.8

< 7.3< 2.6

< 3.2< 61

< 3.7< 3

< 87< 100

< 48< 3.2

< 3.7< 2.6

< 4.2< 26

< 3.7< 7.3

< 2.6< 3.2

< 61< 3.7

< 3< 87

< 100< 48

< 3.2< 3.7

< 2.6< 4.2

< 26< 3.7

< 11< 4

< 5< 94

< 5.6< 4.7

< 130< 160

< 74< 5

< 5.6< 4

< 6.5< 40

< 5.6< 13

< 4.5< 5.6

< 100< 6.3

< 5.3< 150

< 180< 83

< 5.6< 6.3

< 4.4< 7.2

< 45< 6.3

< 12< 4.3

< 5.2< 99

< 5.9< 5

< 140< 170

< 78< 5.2

< 5.9< 4.2

< 6.8< 42

< 5.9< 13

6.553

170 N,J

< 6.711

< 160 N,J

< 190 N,J

< 88 N,J

7.2< 6.7

14< 7.7

< 4.7< 6.7

85< 4.1

51160 N

,J12

< 4.8< 140 N

,J< 160 N

,J< 75 N

,J14

< 5.742

< 6.5< 4

16< 11

< 4< 5

< 94< 5.6

< 4.7< 130

< 160< 74

< 5< 5.6

< 3.9< 6.4

< 4< 5.6

< 11< 4

< 5< 94

< 5.6< 4.7

< 130< 160

< 74< 5

< 5.6< 3.9

< 6.4< 4

< 5.6< 12

< 4.2< 5.1

< 97< 5.8

< 4.8< 140

< 160< 76

< 5.1< 5.8

< 4.1< 6.6

< 41< 5.8

< 12< 4.2

< 5.1< 97

< 5.8< 4.8

< 140< 160

< 76< 5.1

< 5.8< 4.1

< 6.6< 41

< 5.8< 12

< 4.3< 5.3

< 100< 6

< 5< 140

< 170< 79

< 5.3< 6

< 4.2< 6.9

< 42< 6

< 12< 4.1

< 5.1< 96

< 5.8< 4.8

< 140< 160

< 76 PF< 5.1

< 5.8< 4

< 6.6< 41

< 5.8< 11

< 4< 5

< 94< 5.6

< 4.7< 130

< 160< 74 PF

< 5< 5.6

< 3.9< 6.4

< 40< 5.6

< 12< 4.2

< 5.1< 97

< 5.8< 4.8

< 140< 160

< 76 PF< 5.1

< 5.8< 4.1

< 6.6< 41

< 5.8< 12

< 4.2< 5.1

< 97< 5.8

< 4.8< 140

< 160< 76 PF

< 5.1< 5.8

< 4.1< 6.6

< 41< 5.8

< 8.1< 2.9

< 3.6< 67

< 4< 3.4

< 95< 110

< 53< 3.6

< 4< 2.8

< 4.6< 28

< 46.3

< 1.9 U< 3.7 U

< 1.9 U< 1.9 U

< 1.9 U< 1.9 U

< 3.7 U< 1.9 U

< 1.9 U< 1.9 U

< 7.8< 2.8

< 3.4< 65

< 3.9< 3.2

< 92< 110

< 51< 3.4

< 3.9< 2.7

< 4.4< 27

< 3.9< 7.3

< 2.6< 3.2

< 61< 3.7

< 3< 87

< 100< 48

< 3.2< 3.7

< 2.6< 4.2

< 26< 3.7

< 3.5 U< 1.7 U

< 3.5 U< 1.7 U

< 1.7 U< 1.7 U

< 1.7 U< 3.5 U

< 1.7 U< 1.7 U

< 1.7 U< 12

< 4.2< 5.2

< 98< 5.8

< 4.9< 140

< 160< 77

< 5.2< 5.8

< 4.1< 6.7

< 41< 5.8

< 12< 4.1

< 5.1< 96

< 5.8< 4.8

< 140< 160

< 76< 5.1

< 5.8< 4

< 6.6< 41

< 5.8< 12

< 4.2< 5.1

< 97< 5.8

< 4.8< 140

< 160< 76

< 5.1< 5.8

< 4.1< 6.6

< 41< 5.8

< 11< 4.1

< 5< 95

< 5.7< 4.8

< 140< 160

< 75< 5

< 5.7< 4

< 6.5< 4

< 5.7< 12

< 4.4< 5.4

< 100< 6.1

< 5.1< 140

< 170< 81

< 5.4< 6.1

< 4.3< 7

< 4.3< 6.1

< 12< 4.2

< 5.1< 97

< 5.8< 4.8

< 140< 160

< 77< 5.1

< 5.8< 4.1

< 6.6< 4.1

< 5.8< 14

< 4.9< 6

< 110< 6.8

< 5.6< 160

< 190< 89

< 6< 6.8

< 4.8< 7.8

< 4.8< 6.8

< 13< 4.8

< 5.9< 110

< 6.7< 5.6

< 160< 190

< 88< 5.9

< 6.7< 4.7

< 7.7< 4.7

< 6.712

< 4.1< 5

< 95< 5.7

< 4.7< 130

< 160< 75

< 5< 5.7

< 4< 6.5

< 4< 5.7

Page 296: Table Proposed Cleanup Levels Groundwater · 10/21/2013  · Table 04 Summery of PrsllMnery Cost ES11motee for Soleening Feasibility Study Former Kest Property Carson, CA GeotFnlenGOneullanle

Table B-2Sub-Slab Soil Vapor Results

Former Kast Property

Carson, California

Residential Properties Sampled Through August 31, 2013

Page 64 of 235

Sample ID

AddressSam

ple Date

Sample Tim

eLocation

AnalyteU

nitsFrequency of D

etection

R24532SVHD24532 RAVEN

NA AVE

2011-05-1115:48

HouseR24532SVB

24532 RAVENN

A AVE2012-11-16

14:54Back

R24532SVF24532 RAVEN

NA AVE

2012-11-1615:37

FrontR24532SVB

24532 RAVENN

A AVE2013-07-31

14:41Back

R24532SVF24532 RAVEN

NA AVE

2013-07-3115:31

FrontR24532SVH

24532 RAVENN

A AVE2013-07-31

15:48House

N24533SVH

24533 NEPTU

NE AVE

2010-07-1213:52

HouseN

24533SVF24533 N

EPTUN

E AVE2010-07-12

14:26Front

N24533SVB

24533 NEPTU

NE AVE

2010-07-1215:01

BackN

24533SVB24533 N

EPTUN

E AVE2013-03-07

09:58Back

N24533SVBS

24533 NEPTU

NE AVE

2013-03-0709:58

BackN

24533SVH24533 N

EPTUN

E AVE2013-03-07

10:00House

N24533SVF

24533 NEPTU

NE AVE

2013-03-0710:33

FrontN

24533SVFS24533 N

EPTUN

E AVE2013-03-07

10:33Front

N24533SVB

24533 NEPTU

NE AVE

2013-07-0309:44

BackN

24533SVBD24533 N

EPTUN

E AVE2013-07-03

09:44Back

N24533SVH

24533 NEPTU

NE AVE

2013-07-0310:00

HouseN

24533SVF24533 N

EPTUN

E AVE2013-07-03

10:10Front

P24533SVH24533 PAN

AMA AVE

2011-03-1813:41

HouseP24533SVBA

24533 PANAM

A AVE2011-03-18

14:10Back

P24533SVFA24533 PAN

AMA AVE

2011-03-1814:44

FrontP24533SVFAD

24533 PANAM

A AVE2011-03-18

14:44Front

P24533SVFA24533 PAN

AMA AVE

2012-09-2010:33

FrontP24533SVFAS

24533 PANAM

A AVE2012-09-20

10:33Front

P24533SVH24533 PAN

AMA AVE

2012-09-2010:44

HouseP24533SVBA

24533 PANAM

A AVE2012-09-20

11:28Back

P24533SVBA24533 PAN

AMA AVE

2013-07-2414:42

BackP24533SVH

24533 PANAM

A AVE2013-07-24

14:47House

P24533SVFA24533 PAN

AMA AVE

2013-07-2415:05

FrontR24533SVG

24533 RAVENN

A AVE2010-09-07

09:26G

arageR24533SVH

24533 RAVENN

A AVE2010-09-07

10:05House

R24533SVB24533 RAVEN

NA AVE

2010-09-0711:04

BackR 24 533 SVH

24533 RAVENN

A AVE2012-09-27

10:16House

R 24 533 SVG24533 RAVEN

NA AVE

2012-09-2710:18

Garage

R 24 533 SVB24533 RAVEN

NA AVE

2012-09-2711:05

BackR24533SVHA

24533 RAVENN

A AVE2013-08-27

09:49House

R24533SVB24533 RAVEN

NA AVE

2013-08-2709:55

BackR24533SVBS

24533 RAVENN

A AVE2013-08-27

09:55Back

R24533SVG24533 RAVEN

NA AVE

2013-08-2710:20

Garage

M24602SVF

24602 MARBELLA AVE

2010-11-0413:10

FrontM

24602SVB24602 M

ARBELLA AVE2010-11-04

13:54Back

M24602SVH

24602 MARBELLA AVE

2012-06-0109:55

HouseM

24602SVF24602 M

ARBELLA AVE2012-06-01

10:05Front

M24602SVFS

24602 MARBELLA AVE

2012-06-0110:05

FrontM

24602SVB24602 M

ARBELLA AVE2012-06-01

10:29Back

M24602SVBS

24602 MARBELLA AVE

2012-06-0110:29

BackM

24602SVB24602 M

ARBELLA AVE2013-08-27

14:57Back

M24602SVH

24602 MARBELLA AVE

2013-08-2715:00

HouseM

24602SVF24602 M

ARBELLA AVE2013-08-27

15:24Front

N24602SVH

24602 NEPTU

NE AVE

2010-07-2709:30

HouseN

24602SVB24602 N

EPTUN

E AVE2010-07-27

10:10Back

N24602SVF

24602 NEPTU

NE AVE

2010-07-2711:00

Front

IsopropanolHexane

p/m-Xylene

C6-C8 Aliphatics

1,2,4-Trim

ethyl-benzene

HeptaneC8-C10

AliphaticsC10-C12

AliphaticsC5-C6

AliphaticsEthyl-

benzene

Cumene

(Isopropyl-benzene)

CyclohexaneFreon 11

Methylene

Chloride4-Ethyltoluene

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

4.47%3.74%

3.12%2.72%

2.63%2.63%

2.54%2.01%

2.01%1.97%

1.89%1.89%

1.72%1.72%

1.60%

13< 4.1

< 5< 95

< 5.7< 4.7

< 130< 160

< 75< 5

< 5.7< 4

< 6.5< 4

< 5.7< 11

< 4.1< 5

< 95< 5.7

< 4.8< 140

< 160< 75

< 5< 5.7

< 4< 6.5

< 40< 5.7

< 12< 4.3

< 5.2< 99

< 5.9< 5

< 140< 170

< 78< 5.2

< 5.9< 4.2

< 6.8< 42

< 5.9< 12

< 4.4< 5.4

< 100< 6.1

< 5.1< 140

< 170< 81

< 5.4< 6.1

< 4.3< 7

< 43< 6.1

< 11< 4.1

< 5< 95

< 5.7< 4.7

< 130< 160

< 75< 5

< 5.7< 4

< 6.5< 40

< 5.7< 11

< 4< 5

< 94< 5.6

< 4.7< 130

< 160< 74

< 5< 5.6

< 4< 6.5

< 40< 5.6

< 11< 4.1

< 5< 95 N

,J< 5.7

< 4.8< 140 N

,J< 160 N

,J< 75 N

,J< 5

< 5.7< 4

< 6.5< 4

< 5.7< 12

< 4.2< 5.2

< 98 N,J

< 5.9< 4.9

< 140 N,J

< 170 N,J

< 77 N,J

< 5.2< 5.9

< 4.1< 6.7

< 4.2< 5.9

< 11< 4

< 5< 94 N

,J< 5.6

< 4.7< 130 N

,J< 160 N

,J< 74 N

,J< 5

< 5.6< 4

< 6.5< 4

< 5.6< 12

< 4.2< 5.2

< 98< 5.8

< 4.9< 140

< 160< 77

< 5.2< 5.8

< 4.1< 6.7

< 41< 5.8

< 20 U< 2 U

< 3.9 U< 2 U

< 2 U< 2 U

< 2 U< 3.9 U

< 2 U< 2 U

< 2 U< 12

< 4.1< 5.1

< 96< 5.8

< 4.8< 140

< 160< 76

< 5.1< 5.8

< 4< 6.6

< 41< 5.8

< 11< 4.1

< 5< 95

< 5.7< 4.8

< 140< 160

< 75< 5

< 5.7< 4

< 6.5< 40

< 5.7< 20 U

< 2 U< 4 U

< 2 U< 2 U

< 2 U< 2 U

< 4 U< 2 U

< 2 U< 2 U

< 12< 4.1

< 5.1< 96

< 5.8< 4.8

< 140< 160

< 76< 5.1

< 5.8< 4

< 6.6< 41

< 5.8< 12

< 4.2< 5.2

< 98< 5.8

< 4.9< 140

< 160< 77

< 5.2< 5.8

< 4.1< 6.7

< 41< 5.8

< 12< 4.2

< 5.2< 99

< 5.9< 4.9

< 140< 170

< 78< 5.2

< 5.9< 4.1

< 6.8< 42

< 5.9< 12

< 4.1< 5.1

< 96< 5.8

< 4.8< 140

< 160< 76

< 5.1< 5.8

< 4< 6.6

< 41< 5.8

< 12< 4.1

< 5.1< 96

< 5.8< 4.8

< 140< 160

< 76< 5.1

< 5.8< 4

< 6.6< 4.1

< 5.8< 11

< 4.1< 5

< 95< 5.7

< 4.8< 140

< 160< 75

< 5< 5.7

< 4< 6.5

< 4< 5.7

< 11< 4

< 5< 94

< 5.6< 4.7

< 130< 160

< 74< 5

< 5.6< 4

< 6.5< 4

< 5.6< 11

< 4.1< 5

< 95< 5.7

< 4.7< 130

< 160< 75

< 5< 5.7

< 4< 6.5

< 4< 5.7

< 12< 4.3

< 5.2< 99

< 5.9< 5

< 140< 170

< 78< 5.2

< 5.9< 4.2

< 6.8< 42

< 5.9< 20 U

< 2 U< 4 U

< 2 U< 2 U

< 2 U< 2 U

< 4 U< 2 U

< 2 U< 2 U

< 12< 4.4

< 5.4< 100

< 6.1< 5.1

< 140< 170

< 80< 5.4

< 6.1< 4.2

< 6.9< 43

< 6.1< 12

< 4.4< 5.5

< 100< 6.2

< 5.2< 150

< 180< 82

< 5.5< 6.2

< 4.3< 7.1

< 44< 6.2

< 12< 4.4

< 5.5< 100

< 6.2< 5.2

< 150< 180

< 82< 5.5

< 6.2< 4.3

< 7.1< 44

< 6.2< 12

< 4.2< 5.2

< 98< 5.8

< 4.9< 140

< 160< 77

< 5.2< 5.8

< 4.1< 6.7

< 41< 5.8

< 11< 4.1

< 5< 95

< 5.7< 4.8

< 140< 160

< 75< 5

< 5.7< 4

< 6.5< 40

< 5.7< 13

< 4.7< 5.8

< 110< 6.6

< 5.5< 160

< 190< 87

< 5.8< 6.6

< 4.6< 7.6

< 4.7< 6.6

< 12< 4.4

< 5.4< 100

< 6.1< 5.1

< 140< 170

< 80< 5.4

< 6.1< 4.2

28< 4.3

< 6.1< 12

< 4.3< 5.2

< 99< 5.9

< 5< 140

< 170< 78

< 5.2< 5.9

< 4.2< 6.8

< 4.2< 5.9

< 12< 4.2

< 5.2< 98

< 5.9< 4.9

< 140< 170

< 77< 5.2

< 5.9< 4.1

< 6.7< 42

< 5.9< 11

7.4< 4.7

< 88< 5.3

5< 120

< 150< 70

< 4.7< 5.3

< 3.7< 6.1

< 38< 5.3

< 12< 4.2

< 5.1< 97

< 5.8< 4.8

< 140< 160

< 77< 5.1

< 5.8< 4.1

< 6.6< 41

< 5.818

< 4.1< 5

< 95< 5.7

< 4.8< 140

< 160< 75

< 5< 5.7

< 4< 6.5

< 40< 5.7

< 11< 3.9

< 4.9< 92

< 5.5< 4.6

< 130< 160

< 72< 4.9

< 5.5< 3.8

< 6.3< 39

< 5.5< 19 U

12 j< 3.8 U

< 1.9 U9.4 j

< 1.9 U< 1.9 U

< 3.8 U< 1.9 U

< 1.9 U< 1.9 U

< 12< 4.3

< 5.3< 100

< 6< 5

< 140< 170

< 80< 5.3

< 6< 4.2

< 6.9< 43

< 6< 11

< 4< 5

< 94< 5.6

< 4.7< 130

< 160< 74

< 5< 5.6

< 4< 6.5

< 4< 5.6

< 12< 4.4

< 5.5< 100

< 6.2< 5.2

< 150< 180

< 82< 5.5

< 6.2< 4.3

< 7.1< 4.4

< 6.2< 7.5

< 2.7< 3.3

< 62< 3.7

< 3.1< 88

< 100< 49

< 3.3< 3.7

< 2.6< 4.3

< 26< 3.7

< 7.6< 2.7

< 3.4< 64

< 3.8< 3.2

< 90< 110

< 50< 3.4

< 3.8< 2.7

< 4.4< 27

< 3.89.6

< 1.7 U< 3.3 U

< 1.7 U< 1.7 U

< 1.7 U< 1.7 U

4.2< 1.7 U

< 1.7 U< 1.7 U

< 8< 2.8

< 3.5< 66

< 4< 3.3

< 94< 110

< 52< 3.5

< 4< 2.8

< 4.6< 28

< 4< 3.5 U

< 1.8 U< 3.5 U

< 1.8 U< 1.8 U

< 1.8 U< 1.8 U

< 3.5 U< 1.8 U

< 1.8 U< 1.8 U

< 12< 4.3

< 5.3< 100

< 6< 5

< 140< 170

< 79< 5.3

< 6< 4.2

< 6.8< 42

< 6< 12

< 4.2< 5.2

< 98< 5.9

< 4.9< 140

< 170< 78

< 5.2< 5.9

< 4.1< 6.7

< 42< 5.9

< 12< 4.4

< 5.5< 100

< 6.2< 5.2

< 150< 180

< 82< 5.5

< 6.2< 4.3

< 7.1< 44

< 6.2< 11

< 4< 5

< 94 N,J

< 5.6< 4.7

< 130 N,J

< 160 N,J

< 74 N,J

< 5< 5.6

< 3.9< 6.4

< 4< 5.6

< 11< 4.1

< 5< 95 N

,J< 5.7

< 4.8< 140 N

,J< 160 N

,J< 75 N

,J< 5

< 5.7< 4

< 6.5< 4

< 5.7< 11

< 4.1< 5

< 95 N,J

< 5.7< 4.8

< 140 N,J

< 160 N,J

< 75 N,J

< 5< 5.7

< 4< 6.5

< 4< 5.7

Page 297: Table Proposed Cleanup Levels Groundwater · 10/21/2013  · Table 04 Summery of PrsllMnery Cost ES11motee for Soleening Feasibility Study Former Kest Property Carson, CA GeotFnlenGOneullanle

Table B-2Sub-Slab Soil Vapor Results

Former Kast Property

Carson, California

Residential Properties Sampled Through August 31, 2013

Page 65 of 235

Sample ID

AddressSam

ple Date

Sample Tim

eLocation

AnalyteU

nitsFrequency of D

etection

N24602SVB

24602 NEPTU

NE AVE

2011-03-0415:08

BackN

24602SVF24602 N

EPTUN

E AVE2011-03-04

15:22Front

N24602SVFD

24602 NEPTU

NE AVE

2011-03-0415:22

FrontN

24602SVH24602 N

EPTUN

E AVE2011-03-04

15:56House

N24602SVB

24602 NEPTU

NE AVE

2012-06-2909:59

BackN

24602SVBS24602 N

EPTUN

E AVE2012-06-29

09:59Back

N24602SVH

24602 NEPTU

NE AVE

2012-06-2910:05

HouseN

24602SVF24602 N

EPTUN

E AVE2012-06-29

10:34Front

N24602SVFS

24602 NEPTU

NE AVE

2012-06-2910:34

FrontR24602SVB

24602 RAVENN

A AVE2012-10-05

09:57Back

R24602SVF24602 RAVEN

NA AVE

2012-10-0509:57

FrontR24602SVFS

24602 RAVENN

A AVE2012-10-05

09:57Front

R24602SVH24602 RAVEN

NA AVE

2012-10-0510:57

HouseR24602SVB

24602 RAVENN

A AVE2013-04-10

10:04Back

R24602SVH24602 RAVEN

NA AVE

2013-04-1010:09

HouseR24602SVF

24602 RAVENN

A AVE2013-04-10

10:35Front

M24603SVB

24603 MARBELLA AVE

2009-09-2411:29

BackM

24603SVF24603 M

ARBELLA AVE2009-09-24

12:22Front

M24603SVH

24603 MARBELLA AVE

2010-01-1511:00

HouseM

24603SVF24603 M

ARBELLA AVE2010-01-15

11:56Front

M24603SVB

24603 MARBELLA AVE

2010-01-1512:34

BackM

24603SVH24603 M

ARBELLA AVE2010-10-15

13:37House

M24603SVHS

24603 MARBELLA AVE

2010-10-1513:37

HouseM

24603SVF24603 M

ARBELLA AVE2010-10-15

13:45Front

M24603SVB

24603 MARBELLA AVE

2010-10-1514:17

BackN

24603SVH24603 N

EPTUN

E AVE2010-11-04

09:20House

N24603SVG

24603 NEPTU

NE AVE

2010-11-0409:59

Garage

N24603SVB

24603 NEPTU

NE AVE

2010-11-0410:35

BackN

24603SVBD24603 N

EPTUN

E AVE2010-11-04

10:35Back

N24603SVB

24603 NEPTU

NE AVE

2013-03-0714:51

BackN

24603SVBD24603 N

EPTUN

E AVE2013-03-07

14:51Back

N24603SVH

24603 NEPTU

NE AVE

2013-03-0714:54

HouseN

24603SVG24603 N

EPTUN

E AVE2013-03-07

15:25G

arageN

24603SVH24603 N

EPTUN

E AVE2013-07-18

15:02House

N24603SVB

24603 NEPTU

NE AVE

2013-07-1815:13

BackN

24603SVG24603 N

EPTUN

E AVE2013-07-18

15:26G

arageP24603SVH

24603 PANAM

A AVE2011-02-10

08:56House

P24603SVF24603 PAN

AMA AVE

2011-02-1009:30

FrontP24603SVG

24603 PANAM

A AVE2011-02-10

10:09G

arageP24603SVG

S24603 PAN

AMA AVE

2011-02-1010:09

Garage

P24603SVH24603 PAN

AMA AVE

2012-10-1909:43

HouseP24603SVF

24603 PANAM

A AVE2012-10-19

10:08Front

P24603SVFD24603 PAN

AMA AVE

2012-10-1910:08

FrontP24603SVG

24603 PANAM

A AVE2012-10-19

10:16G

arageR24603SVB

24603 RAVENN

A AVE2009-09-19

10:49Back

R24603SVF24603 RAVEN

NA AVE

2009-09-1911:36

FrontR24603SVH

24603 RAVENN

A AVE2011-02-24

09:28House

R24603SVF24603 RAVEN

NA AVE

2011-02-2410:10

FrontR24603SVB

24603 RAVENN

A AVE2011-02-24

11:07Back

R24603SVBS24603 RAVEN

NA AVE

2011-02-2411:07

BackR24603SVH

24603 RAVENN

A AVE2012-06-01

15:50House

R24603SVB24603 RAVEN

NA AVE

2012-06-0115:51

Back

IsopropanolHexane

p/m-Xylene

C6-C8 Aliphatics

1,2,4-Trim

ethyl-benzene

HeptaneC8-C10

AliphaticsC10-C12

AliphaticsC5-C6

AliphaticsEthyl-

benzene

Cumene

(Isopropyl-benzene)

CyclohexaneFreon 11

Methylene

Chloride4-Ethyltoluene

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

4.47%3.74%

3.12%2.72%

2.63%2.63%

2.54%2.01%

2.01%1.97%

1.89%1.89%

1.72%1.72%

1.60%

< 11< 4

< 5< 93

< 5.6< 4.7

< 130< 160

< 74< 4.9

< 5.6< 3.9

< 6.4< 4

< 5.6< 12

< 4.1< 5.1

< 96< 5.8

< 4.8< 140

< 160< 76

< 5.1< 5.8

< 4< 6.6

< 4.1< 5.8

< 11< 4.1

< 5< 95

< 5.7< 4.8

< 140< 160

< 75< 5

< 5.7< 4

< 6.5< 4

< 5.7< 11

< 4< 5

< 93< 5.6

< 4.7< 130

< 160< 74

< 4.9< 5.6

< 3.9< 6.4

< 4< 5.6

< 8.2< 3

< 3.6< 69

< 4.1< 3.4

< 98< 120

< 54< 3.6

< 4.1< 2.9

< 4.7< 29

< 4.1< 18 U

< 1.8 U< 3.6 U

< 1.8 U< 1.8 U

< 1.8 U< 1.8 U

< 3.6 U< 1.8 U

< 1.8 U< 1.8 U

< 7.6< 2.7

< 3.4< 64

< 3.8< 3.2

< 90< 110

< 50< 3.4

< 3.8< 2.7

< 4.4< 27

< 3.8< 8.2

< 3< 3.6

< 69< 4.1

< 3.4< 98

< 120< 54

< 3.6< 4.1

< 2.9< 4.7

< 29< 4.1

< 17 U< 1.7 U

< 3.5 U< 1.7 U

< 1.7 U< 1.7 U

< 1.7 U< 3.5 U

< 1.7 U< 1.7 U

< 1.7 U< 12

< 4.2< 5.2

< 98< 5.8

< 4.9< 140

< 160< 77

< 5.2< 5.8

< 4.1< 6.7

< 41< 5.8

< 13< 4.6

< 5.7< 110

< 6.5< 5.4

< 150< 180

< 85< 5.7

< 6.5< 4.5

< 7.4< 46

< 6.5< 26 U

< 2.6 U< 5.3 U

< 2.6 U< 2.6 U

< 2.6 U< 2.6 U

< 5.3 U< 2.6 U

< 2.6 U< 2.6 U

< 125.5

< 5.4< 100

< 6.1< 5.1

< 140< 170

< 80< 5.4

< 6.1< 4.2

< 6.9< 43

< 6.1< 12

< 4.4< 5.4

< 100< 6.1

< 5.1< 140

< 170< 80 PF

< 5.4< 6.1

< 4.2< 6.9

< 43< 6.1

< 12< 4.2

< 5.2< 98

< 5.9< 4.9

< 140< 170

< 77 PF< 5.2

< 5.9< 4.1

< 6.7< 42

< 5.9< 11

< 3.9< 4.9

< 92< 5.5

< 4.6< 130

< 160< 72 PF

< 4.9< 5.5

< 3.8< 6.3

< 39< 5.5

< 40520

52001700 N

,J2200

4003000 N

,J< 560 U

J,N,J

6700 N,J

110040

64< 23

< 141300

< 11< 4.1

< 5< 95 N

,J< 5.7

< 4.8< 140 N

,J< 160 U

J,N,J

< 75 N,J

< 5< 5.7

< 4< 6.5

< 4< 5.7

< 11< 3.9

< 4.9< 92 N

,J< 5.5

< 4.6< 130 N

,J< 160 N

,J< 72 N

,J< 4.9

< 5.5< 3.8

< 6.3< 3.9

< 5.5< 10

< 3.8< 4.6

< 87 N,J

< 5.2< 4.4

< 120 N,J

< 150 N,J

< 69 N,J

< 4.6< 5.2

< 3.7< 6

< 3.7< 5.2

< 12< 4.2

< 5.2< 98 N

,J< 5.8

< 4.9< 140 N

,J< 160 N

,J< 77 N

,J< 5.2

< 5.8< 4.1

< 6.7< 4.1

< 5.8< 11

< 4< 5

< 94< 5.6

< 4.7< 130

< 160< 74

< 5< 5.6

< 4< 6.5

< 4< 5.6

< 3.5< 1.8

< 3.5< 1.8

< 1.8< 1.8

< 1.8< 3.5

< 1.8< 1.8

< 1.8< 11

< 4.1< 5

< 95< 5.7

< 4.8< 140

< 160< 75

< 5< 5.7

< 4< 6.5

< 4< 5.7

< 12< 4.4

< 5.4< 100

< 6.1< 5.1

< 140< 170

< 80< 5.4

< 6.1< 4.3

< 7< 4.3

< 6.1< 10

< 3.7< 4.6

< 86< 5.2

< 4.3< 120

< 150< 68

< 4.6< 5.2

< 3.6< 5.9

< 3.6< 5.2

< 11< 4

< 5< 94

< 5.6< 4.7

< 130< 160

< 74< 5

< 5.6< 4

< 6.5< 4

< 5.6< 12

< 4.1< 5.1

< 96< 5.8

< 4.8< 140

< 160< 76

< 5.1< 5.8

< 4< 6.6

< 4.1< 5.8

< 12< 4.1

< 5.1< 96

< 5.8< 4.8

< 140< 160

< 76< 5.1

< 5.8< 4

< 6.6< 4.1

< 5.8< 11

< 4.1< 5

< 95< 5.7

< 4.8< 140

< 160< 75

< 5< 5.7

< 4< 6.5

< 40< 5.7

< 11< 4.1

< 5< 95

< 5.7< 4.8

< 140< 160

< 75< 5

< 5.7< 4

< 6.5< 40

< 5.7< 12

< 4.2< 5.1

< 97< 5.8

< 4.8< 140

< 160< 76

< 5.1< 5.8

< 4.1< 6.6

< 41< 5.8

< 12< 4.1

< 5.1< 96

< 5.8< 4.8

< 140< 160

< 76< 5.1

< 5.8< 4

< 6.6< 41

< 5.8< 10

< 3.7< 4.6

< 87< 5.2

< 4.3< 120

< 150< 69

< 4.6< 5.2

< 3.6< 6

< 37< 5.2

< 12< 4.3

< 5.3< 100

< 6< 5

< 140< 170

< 79< 5.3

< 6< 4.2

< 6.8< 42

< 6< 12

< 4.1< 5.1

< 96< 5.8

< 4.8< 140

< 160< 76

< 5.1< 5.8

< 4< 6.6

< 41< 5.8

< 11< 4

< 5< 94

< 5.6< 4.7

< 130< 160

< 74< 5

< 5.6< 3.9

< 6.4< 4

< 5.6< 11

< 3.9< 4.9

< 92< 5.5

< 4.6< 130

< 160< 72

< 4.9< 5.5

< 3.8< 6.3

< 3.9< 5.5

< 11< 4

< 5< 94

< 5.6< 4.7

< 130< 160

< 74< 5

< 5.6< 3.9

< 6.4< 4

< 5.6< 3.6

< 1.8< 3.6

< 1.8< 1.8

< 1.8< 1.8

< 3.6< 1.8

< 1.8< 1.8

< 12< 4.2

< 5.2< 98

< 5.8< 4.9

< 140< 160

< 77< 5.2

< 5.8< 4.1

< 6.7< 41

< 5.8< 12

< 4.4< 5.4

< 100< 6.1

< 5.1< 140

< 170< 80

< 5.4< 6.1

< 4.2< 6.9

< 43< 6.1

< 12< 4.3

< 5.2< 99

< 5.9< 5

< 140< 170

< 78< 5.2

< 5.9< 4.2

< 6.8< 42

< 5.9< 12

< 4.2< 5.2

< 98< 5.8

< 4.9< 140

< 160< 77

< 5.2< 5.8

< 4.1< 6.7

< 41< 5.8

< 11< 4

< 4.9< 93 N

,J< 5.6

< 4.6< 130 N

,J< 160 U

J,N,J

< 73 N,J

< 4.9< 5.6

< 3.9< 6.3

< 3.9< 5.6

< 13< 4.6

< 5.7< 110 N

,J< 6.5

< 5.4< 150 N

,J< 180 U

J,N,J

< 85 N,J

< 5.7< 6.5

< 4.5< 7.4

< 4.6< 6.5

14< 3.9

9.9< 90

10< 4.5

< 130< 150

< 72< 4.8

< 5.4< 3.8

< 6.2< 3.8

< 5.4< 12

< 4.1< 5.1

< 96< 5.8

< 4.8< 140

< 160< 76

< 5.1< 5.8

< 4< 6.6

< 4.1< 5.8

< 11< 4

< 5< 94

< 5.6< 4.7

< 130< 160

< 74< 5

< 5.6< 4

< 6.5< 4

< 5.6< 3.1

< 1.5< 3.1

< 1.5< 1.5

< 1.5< 1.5

< 3.1< 1.5

< 1.5< 1.5

< 7.9< 2.8

< 3.5< 66

< 3.9< 3.3

< 93< 110

< 52< 3.5

< 3.9< 2.8

< 4.5< 28

< 3.9< 7.9

< 2.8< 3.5

< 66< 4

< 3.3< 94

< 110< 52

< 3.5< 4

< 2.8< 4.5

< 28< 4

Page 298: Table Proposed Cleanup Levels Groundwater · 10/21/2013  · Table 04 Summery of PrsllMnery Cost ES11motee for Soleening Feasibility Study Former Kest Property Carson, CA GeotFnlenGOneullanle

Table B-2Sub-Slab Soil Vapor Results

Former Kast Property

Carson, California

Residential Properties Sampled Through August 31, 2013

Page 66 of 235

Sample ID

AddressSam

ple Date

Sample Tim

eLocation

AnalyteU

nitsFrequency of D

etection

R24603SVBD24603 RAVEN

NA AVE

2012-06-0115:51

BackR24603SVF

24603 RAVENN

A AVE2012-06-01

16:24Front

R24603SVFD24603 RAVEN

NA AVE

2012-06-0116:24

FrontM

24606SVB24606 M

ARBELLA AVE2010-04-20

14:37Back

M24606SVF

24606 MARBELLA AVE

2010-04-2015:41

FrontM

24606SVH24606 M

ARBELLA AVE2010-04-20

16:40House

M24606SVF

24606 MARBELLA AVE

2012-01-1312:28

FrontM

24606SVFS24606 M

ARBELLA AVE2012-01-13

12:28Front

M24606SVH

24606 MARBELLA AVE

2012-01-1313:17

HouseM

24606SVHS24606 M

ARBELLA AVE2012-01-13

13:17House

M24606SVB

24606 MARBELLA AVE

2012-01-1313:54

BackM

24606SVBS24606 M

ARBELLA AVE2012-01-13

13:54Back

N24608SVF

24608 NEPTU

NE AVE

2010-04-2915:18

FrontN

24608SVB24608 N

EPTUN

E AVE2010-04-29

16:18Back

N24608SVH

24608 NEPTU

NE AVE

2010-07-0913:17

HouseN

24608SVH24608 N

EPTUN

E AVE2010-09-08

13:44House

N24608SVF

24608 NEPTU

NE AVE

2010-09-0814:15

FrontN

24608SVB24608 N

EPTUN

E AVE2010-09-08

15:06Back

N24608SVH

24608 NEPTU

NE AVE

2012-05-1814:50

HouseN

24608SVF24608 N

EPTUN

E AVE2012-05-18

15:04Front

N24608SVFD

24608 NEPTU

NE AVE

2012-05-1815:04

FrontN

24608SVB24608 N

EPTUN

E AVE2012-05-18

15:22Back

N24608SVH

24608 NEPTU

NE AVE

2013-08-3015:02

HouseN

24608SVB24608 N

EPTUN

E AVE2013-08-30

15:18Back

N24608SVF

24608 NEPTU

NE AVE

2013-08-3015:41

FrontP24608SVB

24608 PANAM

A AVE2010-08-12

14:47Back

P24608SVF24608 PAN

AMA AVE

2010-08-1215:23

FrontP24608SVB

24608 PANAM

A AVE2012-04-06

15:43Back

P24608SVBD24608 PAN

AMA AVE

2012-04-0615:43

BackP24608SVF

24608 PANAM

A AVE2012-04-06

16:26Front

P24608SVHA24608 PAN

AMA AVE

2012-04-2711:38

HouseR24608SVB

24608 RAVENN

A AVE2010-04-08

11:15Back

R24608SVF24608 RAVEN

NA AVE

2010-04-0812:14

FrontR24608SVG

24608 RAVENN

A AVE2010-08-04

13:23G

arageR24608SVG

24608 RAVENN

A AVE2012-05-17

15:13G

arageR24608SVG

D24608 RAVEN

NA AVE

2012-05-1715:13

Garage

R24608SVB24608 RAVEN

NA AVE

2012-05-1715:25

BackR24608SVF

24608 RAVENN

A AVE2012-05-17

16:01Front

R24608SVG24608 RAVEN

NA AVE

2013-08-2210:02

Garage

R24608SVB24608 RAVEN

NA AVE

2013-08-2210:04

BackR24608SVF

24608 RAVENN

A AVE2013-08-22

10:33Front

R24608SVFS24608 RAVEN

NA AVE

2013-08-2210:33

FrontN

24609SVH24609 N

EPTUN

E AVE2010-04-28

14:09House

N24609SVF

24609 NEPTU

NE AVE

2010-04-2815:06

FrontN

24609SVFS24609 N

EPTUN

E AVE2010-04-28

15:06Front

N24609SVB

24609 NEPTU

NE AVE

2010-04-2815:48

BackN

24609SVF24609 N

EPTUN

E AVE2010-08-20

13:35Front

N24609SVH

24609 NEPTU

NE AVE

2010-08-2014:03

HouseN

24609SVB24609 N

EPTUN

E AVE2010-08-20

14:30Back

N24609SVH

24609 NEPTU

NE AVE

2010-12-1015:19

HouseN

24609SVB24609 N

EPTUN

E AVE2010-12-10

15:42Back

N24609SVBD

24609 NEPTU

NE AVE

2010-12-1015:42

Back

IsopropanolHexane

p/m-Xylene

C6-C8 Aliphatics

1,2,4-Trim

ethyl-benzene

HeptaneC8-C10

AliphaticsC10-C12

AliphaticsC5-C6

AliphaticsEthyl-

benzene

Cumene

(Isopropyl-benzene)

CyclohexaneFreon 11

Methylene

Chloride4-Ethyltoluene

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

4.47%3.74%

3.12%2.72%

2.63%2.63%

2.54%2.01%

2.01%1.97%

1.89%1.89%

1.72%1.72%

1.60%

< 8< 2.9

< 3.5< 67

< 4< 3.3

< 95< 110

< 53< 3.5

< 4< 2.8

< 4.6< 28

< 4< 7.7

< 2.7< 3.4

< 64< 3.8

< 3.2< 91

< 110< 50

< 3.4< 3.8

< 2.7< 4.4

< 27< 3.8

< 7.7< 2.8

< 3.4< 64

< 3.8< 3.2

< 91< 110

< 51< 3.4

< 3.8< 2.7

< 4.4< 27

< 3.8< 11

< 4.1< 5

< 95 N,J

< 5.7< 4.8

< 140 N,J

< 160 N,J

< 75 N,J

< 5< 5.7

< 4< 6.5

< 4< 5.7

< 11< 4.1

< 5< 95 N

,J< 5.7

< 4.8< 140 N

,J< 160 N

,J< 75 N

,J< 5

< 5.7< 4

< 6.5< 4

< 5.7< 11

< 4.1< 5

< 95 N,J

< 5.7< 4.7

< 130 N,J

< 160 N,J

< 75 N,J

< 5< 5.7

< 4< 6.5

< 4< 5.7

< 7.6< 2.7

3.9< 64

< 3.8< 3.2

< 90< 110

170< 3.4

< 3.8< 2.7

< 4.4< 2.7

< 3.8< 3.4 U

< 1.7 U< 3.4 U

< 1.7 U< 1.7 U

< 1.7 U< 1.7 U

< 3.4 U< 1.7 U

< 1.7 U< 1.7 U

< 7.9< 2.8

< 3.5< 66

4< 3.3

< 94< 110

< 52< 3.5

< 4< 2.8

< 4.5< 2.8

< 4< 3.6 U

< 1.8 U< 3.6 U

2.1< 1.8 U

< 1.8 U< 1.8 U

< 3.6 U< 1.8 U

< 1.8 U< 1.8 U

< 7.8< 2.8

< 3.4< 65

< 3.9< 3.2

< 92< 110

< 51< 3.4

< 3.9< 2.7

< 4.4< 2.7

< 3.9< 3.5 U

< 1.8 U< 3.5 U

< 1.8 U< 1.8 U

< 1.8 U< 1.8 U

< 3.5 U< 1.8 U

< 1.8 U< 1.8 U

< 11< 4.1

< 5< 95 N

,J< 5.7

< 4.7< 130 N

,J< 160 N

,J< 75 N

,J< 5

< 5.7< 4

< 6.5< 4

< 5.7< 11

< 4.1< 5

< 95 N,J

< 5.7< 4.8

< 140 N,J

< 160 N,J

< 75 N,J

< 5< 5.7

< 4< 6.5

< 4< 5.7

< 11< 4.1

< 5< 95 N

,J< 5.7

< 4.8< 140 N

,J< 160 N

,J< 75 N

,J< 5

< 5.7< 4

< 6.5< 4

< 5.7< 11

15< 5

< 95< 5.7

11< 140

< 160< 75

< 5< 5.7

4.1< 6.5

7.5< 5.7

< 126.9

< 5.3< 100

< 66.8

< 140< 170

< 79< 5.3

< 6< 4.2

< 6.8< 4.2

< 6< 11

< 4.1< 5

< 95< 5.7

< 4.8< 140

< 160< 75

< 5< 5.7

< 4< 6.5

< 4< 5.7

< 7.7< 2.7

< 3.4< 64

< 3.83.7

< 91< 110

< 50< 3.4

< 3.8< 2.7

< 4.4< 27

< 3.8< 8.2

< 2.9< 3.6

< 68< 4.1

< 3.4< 97

< 120< 54

< 3.6< 4.1

< 2.8< 4.7

< 29< 4.1

< 8.2< 3

< 3.6< 69

< 4.13.7

< 98< 120

< 54< 3.6

< 4.1< 2.9

< 4.7< 29

< 4.1< 8

< 2.8< 3.5

< 66< 4

< 3.3< 94

< 110< 52

< 3.5< 4

< 2.8< 4.6

< 28< 4

37< 4.2

< 5.2< 98

< 5.9< 4.9

< 140< 170

< 78< 5.2

< 5.9< 4.1

< 6.7< 42

< 5.9< 12

< 4.2< 5.2

< 98< 5.8

< 4.9< 140

< 160< 77

< 5.2< 5.8

< 4.1< 6.7

< 41< 5.8

< 12< 4.2

< 5.2< 99

< 5.9< 4.9

< 140< 170

< 78< 5.2

< 5.9< 4.1

< 6.8< 42

< 5.9< 11

< 4.1< 5

< 95 N,J

< 5.7< 4.8

< 140 N,J

170 N,J

< 75 N,J

< 5< 5.7

< 4< 6.5

< 4< 5.7

< 12< 4.2

< 5.2< 98 N

,J< 5.8

< 4.9< 140 N

,J< 160 N

,J< 77 N

,J< 5.2

< 5.8< 4.1

< 6.7< 4.1

< 5.8< 7.6

< 2.7< 3.4

< 64< 3.8

< 3.2< 90

< 110< 50

< 3.4< 3.8

< 2.7< 4.4

< 27< 3.8

< 7.6< 2.7

< 3.4< 64

< 3.8< 3.2

< 90< 110

< 50< 3.4

< 3.8< 2.7

< 4.4< 27

< 3.8< 7.5

< 2.7< 3.3

< 62< 3.7

< 3.1< 88

< 100< 49

< 3.3< 3.7

< 2.6< 4.3

< 26< 3.7

< 7.7< 2.8

< 3.4< 64

7.5< 3.2

< 91< 110

< 51< 3.4

< 3.8< 2.7

< 4.4< 27

< 3.8< 11

< 4< 5

< 94 N,J

< 5.6< 4.7

< 130 N,J

< 160 N,J

< 74 N,J

< 5< 5.6

< 3.9< 6.4

< 4< 5.6

< 12< 4.2

< 5.2< 98 N

,J< 5.8

< 4.9< 140 N

,J< 160 N

,J< 77 N

,J< 5.2

< 5.8< 4.1

< 6.7< 4.1

< 5.8< 11

< 4.1< 5

< 95 N,J

< 5.7< 4.8

< 140 N,J

< 160 N,J

< 75 N,J

< 5< 5.7

< 4< 6.5

< 4< 5.7

< 8.2< 3

< 3.6< 69

< 4.1< 3.4

< 98< 120

< 54< 3.6

< 4.1< 2.9

< 4.7< 29

< 4.1< 8.1

< 2.9< 3.6

< 68< 4

< 3.4< 96

< 110< 53

< 3.6< 4

< 2.8< 4.6

< 29< 4

< 7.7< 2.8

< 3.4< 64

< 3.8< 3.2

< 91< 110

< 51< 3.4

< 3.8< 2.7

< 4.4< 27

< 3.8< 7.8

< 2.8< 3.4

< 65< 3.9

< 3.2< 92

< 110< 51

< 3.4< 3.9

< 2.7< 4.4

< 27< 3.9

< 11< 4.1

< 5< 95

< 5.7< 4.7

< 130< 160

< 75< 5

< 5.7< 4

< 6.5< 40

< 5.7< 12

< 4.3< 5.2

< 99< 5.9

< 5< 140

< 170< 78

< 5.2< 5.9

< 4.2< 6.8

< 42< 5.9

< 12< 4.3

< 5.3< 100

< 6< 5

< 140< 170

< 79< 5.3

< 6< 4.2

< 6.8< 42

< 6< 20 U

< 2 U< 4.1 U

< 2 U< 2 U

< 2 U< 2 U

< 4.1 U< 2 U

< 2 U< 2 U

< 12< 4.2

< 5.1< 97 N

,J< 5.8

< 4.8< 140 N

,J< 160 N

,J< 77 N

,J< 5.1

< 5.8< 4.1

< 6.6< 4.1

< 5.8< 12

< 4.2< 5.2

< 99 N,J

< 5.9< 4.9

< 140 N,J

< 170 N,J

< 78 N,J

< 5.2< 5.9

< 4.1< 6.8

< 4.2< 5.9

< 3.5< 1.7

< 3.5< 1.7

< 1.7< 1.7

< 1.7< 3.5

< 1.7< 1.7

< 1.733

< 4.1< 5.1

< 96 N,J

< 5.8< 4.8

< 140 N,J

< 160 N,J

< 76 N,J

< 5.1< 5.8

< 4< 6.6

< 4.1< 5.8

< 11< 4.1

< 5< 95

< 5.7< 4.8

< 140< 160

< 75< 5

< 5.7< 4

< 6.5< 4

< 5.7< 12

< 4.4< 5.4

< 100< 6.1

< 5.1< 140

< 170< 80

< 5.4< 6.1

< 4.2< 6.9

< 4.3< 6.1

< 11< 4

< 5< 94

< 5.6< 4.7

< 130< 160

< 74< 5

< 5.6< 3.9

< 6.4< 4

< 5.6< 11

< 4< 5

< 94< 5.6

< 4.7< 130

< 160< 74

< 5< 5.6

< 4< 6.5

< 4< 5.6

< 11< 3.9

< 4.8< 90

< 5.4< 4.5

< 130< 150

< 72< 4.8

< 5.4< 3.8

< 6.2< 3.8

< 5.4< 11

< 3.9< 4.8

< 90< 5.4

< 4.5< 130

< 150< 72

< 4.8< 5.4

< 3.8< 6.2

< 3.8< 5.4

Page 299: Table Proposed Cleanup Levels Groundwater · 10/21/2013  · Table 04 Summery of PrsllMnery Cost ES11motee for Soleening Feasibility Study Former Kest Property Carson, CA GeotFnlenGOneullanle

Table B-2Sub-Slab Soil Vapor Results

Former Kast Property

Carson, California

Residential Properties Sampled Through August 31, 2013

Page 67 of 235

Sample ID

AddressSam

ple Date

Sample Tim

eLocation

AnalyteU

nitsFrequency of D

etection

N24609SVF

24609 NEPTU

NE AVE

2010-12-1015:52

FrontN

24609SVH24609 N

EPTUN

E AVE2013-05-03

10:11House

N24609SVB

24609 NEPTU

NE AVE

2013-05-0310:33

BackN

24609SVF24609 N

EPTUN

E AVE2013-05-03

10:55Front

P24609SVH24609 PAN

AMA AVE

2010-04-3013:27

HouseP24609SVF

24609 PANAM

A AVE2010-04-30

14:39Front

P24609SVB24609 PAN

AMA AVE

2010-04-3015:33

BackP24609SVH

24609 PANAM

A AVE2010-10-25

09:26House

P24609SVF24609 PAN

AMA AVE

2010-10-2510:11

FrontP24609SVB

24609 PANAM

A AVE2010-10-25

10:56Back

P24609SVBS24609 PAN

AMA AVE

2010-10-2510:56

BackP24609SVF

24609 PANAM

A AVE2011-02-18

10:08Front

P24609SVFS24609 PAN

AMA AVE

2011-02-1810:08

FrontP24609SVH

24609 PANAM

A AVE2011-02-18

10:31House

P24609SVB24609 PAN

AMA AVE

2011-02-1811:28

BackR24609SVH

24609 RAVENN

A AVE2010-11-09

09:25House

R24609SVG24609 RAVEN

NA AVE

2010-11-0909:59

Garage

R24609SVB24609 RAVEN

NA AVE

2010-11-0910:31

BackR24609SVH

24609 RAVENN

A AVE2012-09-21

15:01House

R24609SVG24609 RAVEN

NA AVE

2012-09-2115:02

Garage

R24609SVB24609 RAVEN

NA AVE

2012-09-2115:34

BackR24609SVH

24609 RAVENN

A AVE2013-04-30

14:54House

R24609SVB24609 RAVEN

NA AVE

2013-04-3015:08

BackR24609SVG

24609 RAVENN

A AVE2013-04-30

15:22G

arageM

24612SVH24612 M

ARBELLA AVE2010-08-13

09:15House

M24612SVB

24612 MARBELLA AVE

2010-08-1310:03

BackM

24612SVG24612 M

ARBELLA AVE2010-08-13

10:48G

arageM

24612SVH24612 M

ARBELLA AVE2012-05-10

14:39House

M24612SVG

24612 MARBELLA AVE

2012-05-1014:53

Garage

M24612SVG

D24612 M

ARBELLA AVE2012-05-10

14:53G

arageM

24612SVB24612 M

ARBELLA AVE2012-05-10

15:17Back

N24612SVH

24612 NEPTU

NE AVE

2010-11-1109:14

HouseN

24612SVF24612 N

EPTUN

E AVE2010-11-11

09:44Front

N24612SVFD

24612 NEPTU

NE AVE

2010-11-1109:44

FrontN

24612SVBA24612 N

EPTUN

E AVE2011-02-07

09:21Back

N24612SVBAS

24612 NEPTU

NE AVE

2011-02-0709:21

BackN

24612SVF24612 N

EPTUN

E AVE2011-03-11

14:50Front

N24612SVH

24612 NEPTU

NE AVE

2011-03-1115:17

HouseN

24612SVBA24612 N

EPTUN

E AVE2011-03-11

15:27Back

N24612SVH

24612 NEPTU

NE AVE

2013-08-1314:56

HouseN

24612SVF24612 N

EPTUN

E AVE2013-08-13

15:31Front

N24612SVBA

24612 NEPTU

NE AVE

2013-08-1315:48

BackP24612SVB

24612 PANAM

A AVE2013-01-25

10:24Back

P24612SVG24612 PAN

AMA AVE

2013-01-2510:58

Garage

P24612SVHA24612 PAN

AMA AVE

2013-02-0615:34

HouseP24612SVHA

24612 PANAM

A AVE2013-05-17

14:51House

P24612SVB24612 PAN

AMA AVE

2013-05-1715:28

BackP24612SVBD

24612 PANAM

A AVE2013-05-17

15:28Back

P24612SVG24612 PAN

AMA AVE

2013-05-1715:34

Garage

R24612SVH24612 RAVEN

NA AVE

2011-01-1410:04

HouseR24612SVG

24612 RAVENN

A AVE2011-01-14

10:51G

arageR24612SVBB

24612 RAVENN

A AVE2011-01-14

11:35Back

IsopropanolHexane

p/m-Xylene

C6-C8 Aliphatics

1,2,4-Trim

ethyl-benzene

HeptaneC8-C10

AliphaticsC10-C12

AliphaticsC5-C6

AliphaticsEthyl-

benzene

Cumene

(Isopropyl-benzene)

CyclohexaneFreon 11

Methylene

Chloride4-Ethyltoluene

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

4.47%3.74%

3.12%2.72%

2.63%2.63%

2.54%2.01%

2.01%1.97%

1.89%1.89%

1.72%1.72%

1.60%

< 11< 3.9

< 4.9< 92

< 5.5< 4.6

< 130< 160

< 72< 4.9

< 5.5< 3.8

< 6.3< 3.9

< 5.5< 10

< 3.6< 4.4

< 84< 5

< 4.2< 120

< 140< 66

< 4.4< 5

< 3.5< 5.7

< 35< 5

< 12< 4.1

< 5.1< 96

< 5.8< 4.8

< 140< 160

< 76< 5.1

< 5.8< 4

< 6.6< 41

< 5.8< 13

< 4.6< 5.6

< 110< 6.4

< 5.3< 150

< 180< 84

< 5.6< 6.4

< 4.5< 7.3

< 45< 6.4

< 11< 4.1

< 5< 95 N

,J< 5.7

< 4.8< 140 N

,J< 160 N

,J< 75 N

,J< 5

< 5.7< 4

< 6.5< 4

< 5.713

< 4.1< 5

< 95 N,J

< 5.7< 4.8

< 140 N,J

< 160 N,J

< 75 N,J

< 5< 5.7

< 4< 6.5

< 4< 5.7

< 12< 4.3

< 5.2< 99 N

,J< 5.9

< 5< 140 N

,J< 170 N

,J< 78 N

,J< 5.2

< 5.9< 4.2

< 6.8< 4.2

< 5.9< 12

< 4.3< 5.3

< 100< 6

< 5< 140

< 170< 79

< 5.3< 6

< 4.2< 6.8

< 4.2< 6

< 9.8< 3.5

< 4.3< 82

< 4.9< 4.1

< 120< 140

< 64< 4.3

< 4.9< 3.4

< 5.6< 3.4

< 4.9< 12

< 4.2< 5.2

< 98< 5.9

< 4.9< 140

< 170< 77

< 5.2< 5.9

< 4.1< 6.7

< 4.2< 5.9

< 4.1< 2

< 4.1< 2

< 2< 2

< 2< 4.1

< 2< 2

< 2< 11

< 3.9< 4.9

< 92< 5.5

< 4.6< 130

< 160< 72

< 4.9< 5.5

< 3.8< 6.3

< 3.9< 5.5

< 3.4< 1.7

< 3.4< 1.7

< 1.7< 1.7

< 1.7< 3.4

2.4< 1.7

< 1.7< 11

< 3.9< 4.9

< 92< 5.5

< 4.6< 130

< 160< 72

< 4.9< 5.5

< 3.8< 6.3

< 3.9< 5.5

< 12< 4.3

< 5.3< 100

< 6< 5

< 140< 170

< 79< 5.3

< 6< 4.2

< 6.8< 4.2

< 6< 12

< 4.1< 5.1

< 96< 5.8

< 4.8< 140

< 160< 76

< 5.1< 5.8

< 4< 6.6

< 4.1< 5.8

< 11< 4.1

< 5< 95

< 5.7< 4.8

< 140< 160

< 75< 5

< 5.7< 4

< 6.5< 4

< 5.7< 11

< 3.9< 4.8

< 91< 5.5

< 4.6< 130

< 160< 72

< 4.8< 5.5

< 3.8< 6.3

< 3.9< 5.5

< 12< 4.3

< 5.2< 99

< 5.9< 5

< 140< 170

< 78< 5.2

< 5.9< 4.2

< 6.8< 42

< 5.9< 13

< 4.6< 5.7

< 110< 6.5

< 5.4< 150

< 180< 85

< 5.7< 6.5

< 4.5< 7.4

< 46< 6.5

14< 3.9

< 4.9< 92

< 5.5< 4.6

< 130< 160

< 72< 4.9

< 5.5< 3.8

< 6.3< 39

< 5.5< 12

< 4.2< 5.2

< 98< 5.9

< 4.9< 140

< 170< 78

< 5.2< 5.9

< 4.1< 6.7

< 42< 5.9

< 12< 4.4

< 5.4< 100

< 6.2< 5.1

< 150< 170

< 81< 5.4

< 6.2< 4.3

< 7< 44

< 6.2< 12

< 4.3< 5.2

< 99< 5.9

< 5< 140

< 170< 78

< 5.2< 5.9

< 4.2< 6.8

< 42< 5.9

< 11< 4

< 5< 94 N

,J< 5.6

< 4.7< 130 N

,J< 160 N

,J< 74 N

,J< 5

< 5.6< 3.9

< 6.4< 4

< 5.6< 11

< 4.1< 5

< 95 N,J

< 5.7< 4.8

< 140 N,J

< 160 N,J

< 75 N,J

< 5< 5.7

< 4< 6.5

< 4< 5.7

< 12< 4.2

< 5.2< 98 N

,J< 5.8

< 4.9< 140 N

,J< 160 N

,J< 77 N

,J< 5.2

< 5.8< 4.1

< 6.7< 4.1

< 5.8< 7.6

< 2.7< 3.4

< 64< 3.8

< 3.2< 90

< 110< 50

< 3.4< 3.8

< 2.7< 4.4

< 27< 3.8

< 7.8< 2.8

< 3.4< 65

< 3.9< 3.2

< 92< 110

< 51< 3.4

< 3.9< 2.7

< 4.4< 27

< 3.9< 7.8

< 2.8< 3.4

< 65< 3.9

< 3.2< 92

< 110< 51

< 3.4< 3.9

< 2.7< 4.4

< 27< 3.9

< 7.6< 2.7

< 3.4< 64

< 3.8< 3.2

< 90< 110

< 50< 3.4

< 3.8< 2.7

< 4.4< 27

< 3.8< 12

< 4.2< 5.1

< 97< 5.8

< 4.8< 140

< 160< 77

< 5.1< 5.8

< 4.1< 6.6

< 4.1< 5.8

< 12< 4.2

< 5.1< 97

< 5.8< 4.8

< 140< 160

< 77< 5.1

< 5.8< 4.1

< 6.6< 4.1

< 5.8< 12

< 4.2< 5.1

< 97< 5.8

< 4.8< 140

< 160< 77

< 5.1< 5.8

< 4.1< 6.6

< 4.1< 5.8

< 11< 3.8

< 4.7< 88

< 5.3< 4.4

< 120< 150

< 70< 4.7

< 5.3< 3.7

< 6.1< 3.8

< 5.3< 3.3

< 1.6< 3.3

< 1.6< 1.6

< 1.6< 1.6

< 3.3< 1.6

< 1.6< 1.6

< 11< 4.1

< 5< 95

< 5.7< 4.8

< 140< 160

< 75< 5

< 5.7< 4

< 6.5< 4

< 5.7< 12

5.7< 5.2

< 99< 5.9

< 5< 140

< 170< 78

< 5.2< 5.9

< 4.2< 6.8

4.5< 5.9

< 12< 4.3

< 5.2< 99

< 5.9< 5

< 140< 170

< 78< 5.2

< 5.9< 4.2

< 6.8< 4.2

< 5.9< 11

< 4< 4.9

< 93< 5.6

< 4.6< 130

< 160< 73

< 4.9< 5.6

< 3.9< 6.4

< 39< 5.6

21< 4.3

< 5.3< 100

< 6< 5

< 140< 170

< 79< 5.3

< 6< 4.2

< 6.8< 42

< 6< 12

< 4.2< 5.2

< 98< 5.9

< 4.9< 140

< 170< 78

< 5.2< 5.9

< 4.1< 6.7

< 42< 5.9

< 11< 4

< 5< 94

< 5.6< 4.7

< 130< 160

< 74< 5

< 5.6< 3.9

< 6.4< 40

< 5.6< 11

< 3.8< 4.7

< 88< 5.3

< 4.4< 120

< 150< 70

< 4.7< 5.3

< 3.7< 6.1

< 38< 5.3

< 11< 4.1

< 5< 95

< 5.7< 4.8

< 140< 160

< 75< 5

< 5.7< 4

< 6.5< 40

< 5.7< 12

5< 5.4

< 100< 6.1

< 5.1< 140

< 170< 81 PF

< 5.4< 6.1

< 4.3< 7

< 43< 6.1

< 12< 4.3

< 5.3< 100

< 6< 5

< 140< 170

< 79 PF< 5.3

< 6< 4.2

< 6.9< 42

< 6< 12

< 4.4< 5.4

< 100< 6.1

< 5.1< 140

< 170< 80 PF

< 5.4< 6.1

< 4.3< 7

< 43< 6.1

< 126.7

< 5.1< 96

< 5.8< 4.8

< 140< 160

< 76 PF< 5.1

< 5.8< 4

< 6.6< 41

< 5.8< 11

< 4.1< 5

< 95< 5.7

< 4.8< 140

< 160< 75

< 5< 5.7

< 4< 6.5

< 4< 5.7

< 11< 4

< 5< 94

< 5.6< 4.7

< 130< 160

< 74< 5

< 5.6< 3.9

< 6.4< 4

< 5.6< 12

< 4.2< 5.2

< 98< 5.8

< 4.9< 140

< 160< 77

< 5.2< 5.8

< 4.1< 6.7

< 4.1< 5.8

Page 300: Table Proposed Cleanup Levels Groundwater · 10/21/2013  · Table 04 Summery of PrsllMnery Cost ES11motee for Soleening Feasibility Study Former Kest Property Carson, CA GeotFnlenGOneullanle

Table B-2Sub-Slab Soil Vapor Results

Former Kast Property

Carson, California

Residential Properties Sampled Through August 31, 2013

Page 68 of 235

Sample ID

AddressSam

ple Date

Sample Tim

eLocation

AnalyteU

nitsFrequency of D

etection

R24612SVBB24612 RAVEN

NA AVE

2012-11-0114:46

BackR24612SVBBD

24612 RAVENN

A AVE2012-11-01

14:46Back

R24612SVH24612 RAVEN

NA AVE

2012-11-0114:49

HouseR24612SVG

24612 RAVENN

A AVE2012-11-01

15:32G

arageR24612SVBB

24612 RAVENN

A AVE2013-06-25

14:50Back

R24612SVH24612 RAVEN

NA AVE

2013-06-2514:53

HouseR24612SVG

24612 RAVENN

A AVE2013-06-25

15:18G

arageM

24613SVH24613 M

ARBELLA AVE2010-05-26

09:03House

M24613SVG

24613 MARBELLA AVE

2010-05-2610:01

Garage

M24613SVB

24613 MARBELLA AVE

2010-05-2610:49

BackM

24613SVG24613 M

ARBELLA AVE2012-10-11

11:01G

arageM

24613SVGS

24613 MARBELLA AVE

2012-10-1111:01

Garage

M24613SVB

24613 MARBELLA AVE

2012-10-1111:41

BackM

24613SVHA24613 M

ARBELLA AVE2012-10-24

12:14House

M24613SVHA

24613 MARBELLA AVE

2013-04-1910:01

HouseM

24613SVB24613 M

ARBELLA AVE2013-04-19

10:10Back

M24613SVBD

24613 MARBELLA AVE

2013-04-1910:10

BackM

24613SVG24613 M

ARBELLA AVE2013-04-19

10:35G

arageN

24613SVB24613 N

EPTUN

E AVE2010-08-09

13:59Back

N24613SVF

24613 NEPTU

NE AVE

2010-08-0914:44

FrontN

24613SVH24613 N

EPTUN

E AVE2012-05-11

09:55House

N24613SVF

24613 NEPTU

NE AVE

2012-05-1110:04

FrontN

24613SVFS24613 N

EPTUN

E AVE2012-05-11

10:04Front

N24613SVB

24613 NEPTU

NE AVE

2012-05-1110:42

BackN

24613SVBS24613 N

EPTUN

E AVE2012-05-11

10:42Back

N24613SVB

24613 NEPTU

NE AVE

2013-08-2909:42

BackN

24613SVBD24613 N

EPTUN

E AVE2013-08-29

09:42Back

N24613SVH

24613 NEPTU

NE AVE

2013-08-2909:47

HouseP24613SVF

24613 PANAM

A AVE2010-06-25

14:07Front

P24613SVH24613 PAN

AMA AVE

2010-06-2514:43

HouseP24613SVB

24613 PANAM

A AVE2010-06-25

15:25Back

P24613SVH24613 PAN

AMA AVE

2011-02-1010:10

HouseP24613SVF

24613 PANAM

A AVE2011-02-10

10:48Front

P24613SVB24613 PAN

AMA AVE

2011-02-1010:59

BackP24613SVB

24613 PANAM

A AVE2012-09-13

14:58Back

P24613SVBD24613 PAN

AMA AVE

2012-09-1314:58

BackP24613SVF

24613 PANAM

A AVE2012-09-13

15:05Front

P24613SVH24613 PAN

AMA AVE

2012-09-1315:45

HouseR24613SVH

24613 RAVENN

A AVE2009-12-31

13:46House

R24613SVF24613 RAVEN

NA AVE

2009-12-3114:22

FrontR24613SVFS

24613 RAVENN

A AVE2009-12-31

14:22Front

R24613SVB24613 RAVEN

NA AVE

2009-12-3115:07

BackR24613SVH

24613 RAVENN

A AVE2011-05-20

10:20House

R24613SVF24613 RAVEN

NA AVE

2011-05-2010:26

FrontR24613SVFS

24613 RAVENN

A AVE2011-05-20

10:26Front

R24613SVB24613 RAVEN

NA AVE

2011-05-2010:55

BackR24613SVBS

24613 RAVENN

A AVE2011-05-20

10:55Back

M24616SVH

24616 MARBELLA AVE

2010-04-2215:26

HouseM

24616SVB24616 M

ARBELLA AVE2010-04-22

16:44Back

M24616SVF

24616 MARBELLA AVE

2010-04-2311:55

FrontM

24616SVFD24616 M

ARBELLA AVE2010-04-23

11:55Front

M24616SVH

24616 MARBELLA AVE

2010-08-2509:07

House

IsopropanolHexane

p/m-Xylene

C6-C8 Aliphatics

1,2,4-Trim

ethyl-benzene

HeptaneC8-C10

AliphaticsC10-C12

AliphaticsC5-C6

AliphaticsEthyl-

benzene

Cumene

(Isopropyl-benzene)

CyclohexaneFreon 11

Methylene

Chloride4-Ethyltoluene

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

4.47%3.74%

3.12%2.72%

2.63%2.63%

2.54%2.01%

2.01%1.97%

1.89%1.89%

1.72%1.72%

1.60%

< 11< 4.1

< 5< 95

< 5.7< 4.8

< 140< 160

< 75< 5

< 5.7< 4

< 6.5< 40

< 5.7< 12

< 4.1< 5.1

< 96< 5.8

< 4.8< 140

< 160< 76

< 5.1< 5.8

< 4< 6.6

< 41< 5.8

< 11< 4

< 5< 94

< 5.6< 4.7

< 130< 160

< 74< 5

< 5.6< 4

< 6.5< 40

< 5.6< 11

< 3.8< 4.7

< 89< 5.4

< 4.5< 130

< 150< 70

< 4.7< 5.4

< 3.8< 6.1

< 38< 5.4

< 12< 4.3

< 5.3< 100

< 6< 5

< 140< 170

< 80< 5.3

< 6< 4.2

< 6.9< 43

< 6< 11

< 4.1< 5

< 95< 5.7

< 4.8< 140

< 160< 75

< 5< 5.7

< 4< 6.5

< 40< 5.7

< 12< 4.1

< 5.1< 96

< 5.8< 4.8

< 140< 160

< 76< 5.1

< 5.8< 4

< 6.6< 41

< 5.8< 11

< 4< 5

< 93 N,J

< 5.6< 4.7

< 130 N,J

< 160 N,J

< 74 N,J

< 4.9< 5.6

< 3.9< 6.4

< 4< 5.6

< 12< 4.1

< 5.1< 96 N

,J< 5.8

< 4.8< 140 N

,J< 160 N

,J< 76 N

,J32

< 5.8< 4

< 6.6< 4.1

< 5.8< 12

< 4.1< 5.1

< 96 N,J

< 5.8< 4.8

< 140 N,J

< 160 N,J

< 76 N,J

< 5.1< 5.8

< 4< 6.6

4 J< 5.8

< 12< 4.3

< 5.2410

< 5.9< 5

< 140< 170

< 78< 5.2

< 5.9< 4.2

< 6.8< 42

< 5.9< 18 U

2.7< 3.6 U

< 1.8 U2.3

< 1.8 U< 1.8 U

< 3.6 U< 1.8 U

< 1.8 U< 1.8 U

< 115.7

< 4.7< 88

< 5.35

< 120< 150

< 70< 4.7

< 5.3< 3.7

< 6.1< 38

< 5.3< 12

< 4.3< 5.2

< 99< 5.9

< 5< 140

< 170< 78

< 5.2< 5.9

< 4.2< 6.8

< 42< 5.9

< 11< 3.9

< 4.8< 91

< 5.5< 4.6

< 130< 160

< 72 PF< 4.8

< 5.5< 3.8

< 6.3< 39

< 5.5< 12

< 4.2< 5.2

< 99< 5.9

< 4.9< 140

< 170< 78 PF

< 5.2< 5.9

< 4.1< 6.8

< 42< 5.9

< 12< 4.3

< 5.3< 100

< 6< 5

< 140< 170

< 80 PF< 5.3

< 6< 4.2

< 6.9< 43

< 6< 11

< 3.8< 4.7

< 89< 5.4

< 4.5< 130

< 150< 70 PF

< 4.7< 5.4

< 3.8< 6.1

< 38< 5.4

< 12< 4.3

< 5.2< 99 N

,J< 5.9

< 5< 140 N

,J< 170 N

,J< 78 N

,J< 5.2

< 5.9< 4.2

< 6.8< 4.2

< 5.9< 12

< 4.2< 5.2

< 98 N,J

< 5.8< 4.9

< 140 N,J

< 160 N,J

< 77 N,J

< 5.2< 5.8

< 4.1< 6.7

< 4.1< 5.8

< 7.5< 2.7

< 3.3< 62

< 3.7< 3.1

< 88< 100

< 49< 3.3

< 3.7< 2.6

< 4.3< 26

< 3.7< 8.1

< 2.9< 3.6

< 67< 4

< 3.4< 95

< 110< 53

< 3.6< 4

< 2.8< 4.6

< 28< 4

< 3.8 U< 1.9 U

< 3.8 U< 1.9 U

< 1.9 U< 1.9 U

< 1.9 U< 3.8 U

< 1.9 U< 1.9 U

< 1.9 U< 7.8

< 2.8< 3.4

< 65< 3.9

< 3.2< 92

< 110< 51

< 3.4< 3.9

< 2.7< 4.4

< 27< 3.9

< 3.5 U< 1.8 U

< 3.5 U< 1.8 U

< 1.8 U< 1.8 U

< 1.8 U< 3.5 U

< 1.8 U< 1.8 U

< 1.8 U< 13

< 4.6< 5.6

< 110< 6.4

< 5.3< 150

< 180< 84

< 5.6< 6.4

< 4.4< 7.3

< 45< 6.4

< 13< 4.6

< 5.6< 110

< 6.4< 5.3

< 150< 180

< 84< 5.6

< 6.4< 4.4

< 7.3< 45

< 6.4< 13

< 4.5< 5.6

< 100< 6.3

< 5.3< 150

< 180< 84

< 5.6< 6.3

< 4.4< 7.2

< 45< 6.3

< 12< 4.2

< 5.2< 99 N

,J< 5.9

< 4.9< 140 N

,J< 170 N

,J< 78 N

,J< 5.2

< 5.9< 4.1

< 6.8< 4.2

< 5.913

< 4.3< 5.2

< 99 N,J

< 5.9< 5

< 140 N,J

< 170 N,J

< 78 N,J

< 5.2< 5.9

< 4.2< 6.8

56< 5.9

< 12< 4.1

< 5.1< 96 N

,J< 5.8

< 4.8< 140 N

,J< 160 N

,J< 76 N

,J< 5.1

< 5.8< 4

< 6.6< 4.1

< 5.8< 11

< 3.9< 4.9

< 92< 5.5

< 4.6< 130

< 160< 72

< 4.9< 5.5

< 3.8< 6.3

< 3.9< 5.5

< 11< 4.1

< 5< 95

< 5.7< 4.8

< 140< 160

< 75< 5

< 5.7< 4

< 6.5< 4

< 5.7< 12

< 4.2< 5.2

< 98< 5.8

< 4.9< 140

< 160< 77

< 5.2< 5.8

< 4.1< 6.7

< 4.1< 5.8

< 12< 4.3

< 5.2< 99

< 5.9< 5

< 140< 170

< 78< 5.2

< 5.9< 4.2

< 6.8< 42

< 5.9< 12

< 4.2< 5.2

< 98< 5.8

< 4.9< 140

< 160< 77

< 5.2< 5.8

< 4.1< 6.7

< 41< 5.8

< 1214

< 5.2< 98

< 5.816

< 140< 160

< 77< 5.2

< 5.8< 4.1

< 6.7< 41

< 5.8< 12

< 4.3< 5.2

< 99< 5.9

< 5< 140

< 170< 78

< 5.2< 5.9

< 4.2< 6.8

< 42< 5.9

< 12< 4.3

< 5.2< 99 N

,J< 5.9

< 5< 140 N

,J< 170 N

,J< 78 N

,J< 5.2

< 5.9< 4.2

< 6.8< 4.2

< 5.914

< 4.327

< 100 N,J

13< 5

< 140 N,J

< 170 N,J

< 79 N,J

7.6< 6

< 4.2< 6.8

< 4.210

8.7< 2.1

< 4.2< 2.1

< 2.1< 2.1

3< 4.2

1.3 J< 2.1

< 2.1< 12

< 4.2< 5.2

< 99 N,J

< 5.9< 4.9

< 140 N,J

< 170 N,J

< 78 N,J

< 5.2< 5.9

< 4.1< 6.8

< 4.2< 5.9

< 11< 4.1

< 5< 95

< 5.7< 4.8

< 140< 160

< 75< 5

< 5.7< 4

< 6.5< 4

< 5.7< 22

< 8< 9.8

< 180< 11

10< 260

< 320< 150

< 9.8< 11

< 7.8< 13

< 7.9< 11

< 3.4 U< 1.7 U

< 3.4 U< 1.7 U

< 1.7 U< 1.7 U

< 1.7 U< 3.4 U

< 1.7 U< 1.7 U

< 1.7 U< 12

< 4.1< 5.1

< 96< 5.8

< 4.8< 140

< 160< 76

< 5.1< 5.8

< 4< 6.6

< 4.1< 5.8

< 3.5 U< 1.8 U

< 3.5 U< 1.8 U

< 1.8 U< 1.8 U

< 1.8 U< 3.5 U

< 1.8 U< 1.8 U

< 1.8 U< 11

< 4.1< 5

< 95 N,J

< 5.7< 4.8

< 140 N,J

1100 N,J

< 75 N,J

< 5< 5.7

< 4< 6.5

< 4< 5.7

< 22< 8.1

< 9.9< 190 N

,J< 11

< 9.4< 270 N

,J770 N

,J< 150 N

,J< 9.9

< 11< 7.9

< 13< 8

< 11< 11

< 4< 5

< 94 N,J

< 5.6< 4.7

< 130 N,J

< 160 N,J

< 74 N,J

< 5< 5.6

< 3.9< 6.4

< 4< 5.6

< 11< 4

< 5< 94 N

,J< 5.6

< 4.7< 130 N

,J< 160 N

,J< 74 N

,J< 5

< 5.6< 3.9

< 6.4< 4

< 5.6< 11

< 4.1< 5

< 95< 5.7

< 4.8< 140

< 160< 75

< 5< 5.7

< 4< 6.5

< 4< 5.7

Page 301: Table Proposed Cleanup Levels Groundwater · 10/21/2013  · Table 04 Summery of PrsllMnery Cost ES11motee for Soleening Feasibility Study Former Kest Property Carson, CA GeotFnlenGOneullanle

Table B-2Sub-Slab Soil Vapor Results

Former Kast Property

Carson, California

Residential Properties Sampled Through August 31, 2013

Page 69 of 235

Sample ID

AddressSam

ple Date

Sample Tim

eLocation

AnalyteU

nitsFrequency of D

etection

M24616SVB

24616 MARBELLA AVE

2010-08-2509:52

BackM

24616SVF24616 M

ARBELLA AVE2010-08-25

10:30Front

M24616SVH

24616 MARBELLA AVE

2011-03-1815:10

HouseM

24616SVF24616 M

ARBELLA AVE2011-03-18

15:25Front

M24616SVFD

24616 MARBELLA AVE

2011-03-1815:25

FrontM

24616SVB24616 M

ARBELLA AVE2011-03-18

15:52Back

M24616SVB

24616 MARBELLA AVE

2013-08-0614:48

BackM

24616SVH24616 M

ARBELLA AVE2013-08-06

14:48House

M24616SVF

24616 MARBELLA AVE

2013-08-0615:10

FrontM

24617SVB24617 M

ARBELLA AVE2010-08-03

09:05Back

M24617SVG

24617 MARBELLA AVE

2010-08-0310:01

Garage

M24617SVB

24617 MARBELLA AVE

2012-05-0310:00

BackM

24617SVBS24617 M

ARBELLA AVE2012-05-03

10:00Back

M24617SVH

24617 MARBELLA AVE

2012-05-0310:20

HouseM

24617SVG24617 M

ARBELLA AVE2012-05-03

10:41G

arageM

24617SVGS

24617 MARBELLA AVE

2012-05-0310:41

Garage

N24618SVH

24618 NEPTU

NE AVE

2010-05-1909:19

HouseN

24618SVB24618 N

EPTUN

E AVE2010-05-19

10:10Back

N24618SVF

24618 NEPTU

NE AVE

2010-05-1911:06

FrontN

24618SVH24618 N

EPTUN

E AVE2010-09-08

13:39House

N24618SVF

24618 NEPTU

NE AVE

2010-09-0814:22

FrontN

24618SVB24618 N

EPTUN

E AVE2010-09-08

15:07Back

N24618SVF

24618 NEPTU

NE AVE

2011-01-2714:57

FrontN

24618SVH24618 N

EPTUN

E AVE2011-01-27

15:40House

N24618SVHD

24618 NEPTU

NE AVE

2011-01-2715:40

HouseN

24618SVB24618 N

EPTUN

E AVE2011-01-27

16:17Back

N24618SVH

24618 NEPTU

NE AVE

2012-07-2714:51

HouseN

24618SVF24618 N

EPTUN

E AVE2012-07-27

14:59Front

N24618SVB

24618 NEPTU

NE AVE

2012-07-2715:29

BackP24618SVF

24618 PANAM

A AVE2010-05-14

09:40Front

P24618SVG24618 PAN

AMA AVE

2010-05-1412:01

Garage

P24618SVGD

24618 PANAM

A AVE2010-05-14

12:01G

arageP24618SVB

24618 PANAM

A AVE2010-08-11

10:08Back

P24618SVG24618 PAN

AMA AVE

2012-04-1915:22

Garage

P24618SVGD

24618 PANAM

A AVE2012-04-19

15:22G

arageP24618SVF

24618 PANAM

A AVE2012-04-19

15:45Front

R24618SVG24618 RAVEN

NA AVE

2013-02-1509:50

Garage

R24618SVB24618 RAVEN

NA AVE

2013-02-1510:21

BackR24618SVBD

24618 RAVENN

A AVE2013-02-15

10:21Back

R24618SVHA24618 RAVEN

NA AVE

2013-02-2714:57

HouseR24618SVG

24618 RAVENN

A AVE2013-06-25

09:55G

arageR24618SVG

D24618 RAVEN

NA AVE

2013-06-2509:55

Garage

R24618SVHA24618 RAVEN

NA AVE

2013-06-2510:24

HouseR24618SVB

24618 RAVENN

A AVE2013-06-25

10:37Back

N24619SVH

24619 NEPTU

NE AVE

2010-06-1709:36

HouseN

24619SVB24619 N

EPTUN

E AVE2010-06-17

10:26Back

N24619SVF

24619 NEPTU

NE AVE

2010-06-1711:07

FrontN

24619SVH24619 N

EPTUN

E AVE2012-07-13

10:14House

N24619SVHS

24619 NEPTU

NE AVE

2012-07-1310:14

HouseN

24619SVF24619 N

EPTUN

E AVE2012-07-13

10:46Front

N24619SVFS

24619 NEPTU

NE AVE

2012-07-1310:46

FrontN

24619SVB24619 N

EPTUN

E AVE2012-07-13

11:01Back

IsopropanolHexane

p/m-Xylene

C6-C8 Aliphatics

1,2,4-Trim

ethyl-benzene

HeptaneC8-C10

AliphaticsC10-C12

AliphaticsC5-C6

AliphaticsEthyl-

benzene

Cumene

(Isopropyl-benzene)

CyclohexaneFreon 11

Methylene

Chloride4-Ethyltoluene

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

4.47%3.74%

3.12%2.72%

2.63%2.63%

2.54%2.01%

2.01%1.97%

1.89%1.89%

1.72%1.72%

1.60%

< 12< 4.3

< 5.2< 99

< 5.9< 5

< 140< 170

< 78< 5.2

< 5.9< 4.2

< 6.8< 4.2

< 5.9< 12

< 4.2< 5.2

< 98< 5.8

< 4.9< 140

< 160< 77

< 5.2< 5.8

< 4.1< 6.7

< 4.1< 5.8

< 12< 4.2

< 5.2< 98

< 5.9< 4.9

< 140< 170

< 77< 5.2

< 5.9< 4.1

< 6.7< 4.2

< 5.9< 12

< 4.2< 5.2

< 98< 5.9

< 4.9< 140

< 170< 77

< 5.2< 5.9

< 4.1< 6.7

< 4.2< 5.9

< 12< 4.2

< 5.1< 97

< 5.8< 4.8

< 140< 160

< 77< 5.1

< 5.8< 4.1

< 6.6< 4.1

< 5.8< 12

< 4.2< 5.2

< 98< 5.9

< 4.9< 140

< 170< 77

< 5.2< 5.9

< 4.1< 6.7

< 4.2< 5.9

< 12< 4.4

< 5.4< 100

< 6.2< 5.1

< 150< 170

< 81< 5.4

< 6.2< 4.3

< 7< 44

< 6.2< 11

< 4.1< 5

< 95< 5.7

< 4.8< 140

< 160< 75

< 5< 5.7

< 4< 6.5

< 40< 5.7

< 11< 4.1

< 5< 95

< 5.7< 4.8

< 140< 160

< 75< 5

< 5.7< 4

< 6.5< 40

< 5.7< 10

< 3.6< 4.4

< 84 N,J

< 5< 4.2

< 120 N,J

< 140 N,J

< 66 N,J

< 4.4< 5

< 3.5< 5.8

< 3.6< 5

< 11< 4.1

< 5< 95 N

,J< 5.7

< 4.8< 140 N

,J< 160 N

,J< 75 N

,J< 5

< 5.7< 4

< 6.5< 4

< 5.7< 7.6

< 2.7< 3.4

< 64< 3.8

< 3.2< 90

< 110< 50

< 3.4< 3.8

< 2.7< 4.4

< 27< 3.8

< 3.7 U< 1.8 U

< 3.7 U< 1.8 U

< 1.8 U< 1.8 U

< 1.8 U< 3.7 U

< 1.8 U< 1.8 U

< 1.8 U< 7.4

< 2.6< 3.2

< 61< 3.7

< 3.1< 87

< 100< 48

< 3.2< 3.7

< 2.6< 4.2

< 26< 3.7

< 7.9< 2.8

< 3.5< 66

< 4< 3.3

< 94< 110

< 52< 3.5

< 4< 2.8

< 4.5< 28

< 4< 3.5 U

< 1.8 U< 3.5 U

< 1.8 U< 1.8 U

< 1.8 U< 1.8 U

< 3.5 U< 1.8 U

< 1.8 U< 1.8 U

< 12< 4.3

< 5.2< 99 N

,J< 5.9

< 5< 140 N

,J< 170 N

,J< 78 N

,J< 5.2

< 5.9< 4.2

< 6.8< 4.2

< 5.9< 12

< 4.3< 5.2

< 99 N,J

< 5.9< 5

< 140 N,J

< 170 N,J

< 78 N,J

< 5.2< 5.9

< 4.2< 6.8

< 4.2< 5.9

< 11< 3.9

< 4.9120 N

,J< 5.5

< 4.6< 130 N

,J< 160 N

,J< 72 N

,J< 4.9

< 5.5< 3.8

< 6.3< 3.9

< 5.5< 11

< 3.9< 4.9

< 92< 5.5

< 4.6< 130

< 160< 72

< 4.9< 5.5

< 3.8< 6.3

< 3.9< 5.5

< 12< 4.2

6.9< 98

< 5.9< 4.9

< 140< 170

< 78< 5.2

< 5.9< 4.1

< 6.7< 4.2

< 5.9< 12

< 4.1< 5.1

< 96< 5.8

< 4.8< 140

< 160< 76

< 5.1< 5.8

< 4< 6.6

< 4.1< 5.8

< 12< 4.2

< 5.1< 97

< 5.8< 4.8

< 140< 160

< 77< 5.1

< 5.8< 4.1

< 6.6< 4.1

< 5.8< 12

< 4.3< 5.2

< 99< 5.9

< 5< 140

< 170< 78

< 5.2< 5.9

< 4.2< 6.8

< 4.2< 5.9

< 12< 4.3

< 5.2< 99

< 5.9< 5

< 140< 170

< 78< 5.2

< 5.9< 4.2

< 6.8< 4.2

< 5.9< 12

< 4.1< 5.1

< 96< 5.8

< 4.8< 140

< 160< 76

< 5.1< 5.8

< 4< 6.6

< 4.1< 5.8

< 7.6< 2.7

< 3.4< 64

< 3.8< 3.2

< 90< 110

< 50< 3.4

< 3.8< 2.7

< 4.4< 27

< 3.8< 7.9

< 2.8< 3.5

< 66< 4

< 3.3< 94

< 110< 52

< 3.5< 4

< 2.8< 4.5

< 28< 4

< 7.8< 2.8

< 3.4< 65

< 3.9< 3.2

< 92< 110

< 51< 3.4

< 3.9< 2.7

< 4.4< 27

< 3.9< 12

< 4.2< 5.1

< 97 N,J

< 5.8< 4.8

< 140 N,J

< 160 N,J

< 77 N,J

< 5.1< 5.8

< 4.1< 6.6

< 4.1< 5.8

< 12< 4.3

< 5.2< 99 N

,J< 5.9

< 5< 140 N

,J< 170 N

,J< 78 N

,J< 5.2

< 5.9< 4.2

< 6.8< 4.2

< 5.9< 15

< 5.4< 6.7

< 130 N,J

< 7.6< 6.3

< 180 N,J

< 210 N,J

< 100 N,J

< 6.7< 7.6

< 5.3< 8.6

< 5.4< 7.6

< 12< 4.1

< 5.1< 96 N

,J< 5.8

< 4.8< 140 N

,J< 160 N

,J< 76 N

,J< 5.1

< 5.8< 4

< 6.6< 4.1

< 5.8< 13

< 4.5< 5.6

< 100< 6.3

< 5.3< 150

< 180 PF< 83

< 5.6< 6.3

< 4.4< 7.2

< 45< 6.3

< 7.8< 2.8

< 3.4< 65

< 3.9< 3.2

< 92< 110 PF

< 51< 3.4

< 3.9< 2.7

< 4.4< 27

< 3.9< 7.6

< 2.7< 3.4

< 64< 3.8

< 3.2< 90

< 110 PF< 50

< 3.4< 3.8

< 2.7< 4.4

< 27< 3.8

< 21< 7.5

< 9.2< 170

< 10< 8.7

< 250< 300

< 140< 9.2

< 10< 7.3

< 12< 74

< 10< 12

< 4.3< 5.2

< 99< 5.9

< 5< 140

< 170< 78

< 5.2< 5.9

< 4.2< 6.8

< 42< 5.9

< 12< 4.4

< 5.4< 100

< 6.1< 5.1

< 140< 170

< 80< 5.4

< 6.1< 4.2

< 6.9< 43

< 6.115

< 4.4< 5.4

< 100< 6.1

< 5.1< 140

< 170< 80

< 5.4< 6.1

< 4.3< 7

< 43< 6.1

< 11< 3.8

< 4.8< 90

< 5.4< 4.5

< 130< 150

< 71< 4.8

< 5.4< 3.8

< 6.2< 38

< 5.4< 11

< 4< 4.9

< 93< 5.6

< 4.6< 130

< 160< 73

< 4.9< 5.6

< 3.9< 6.4

< 39< 5.6

< 12< 4.3

< 5.3< 100

< 6< 5

< 140< 170

< 79< 5.3

< 6< 4.2

< 6.9< 42

< 6< 12

< 4.3< 5.3

< 100< 6

< 5< 140

< 170< 79

< 5.3< 6

< 4.2< 6.8

< 42< 6

< 12< 4.2

< 5.1< 97 N

,J< 5.8

< 4.8< 140 N

,J< 160 N

,J< 77 N

,J< 5.1

< 5.8< 4.1

< 6.6< 4.1

< 5.8< 12

< 4.2< 5.1

< 97 N,J

< 5.8< 4.8

< 140 N,J

< 160 N,J

< 77 N,J

< 5.1< 5.8

< 4.1< 6.6

< 4.1< 5.8

< 12< 4.2

< 5.1< 97 N

,J< 5.8

< 4.8< 140 N

,J< 160 N

,J< 77 N

,J< 5.1

< 5.8< 4.1

< 6.6< 4.1

< 5.8< 8.1

< 2.9< 3.6

< 67< 4

< 3.4< 95

< 110< 53

< 3.6< 4

< 2.8< 4.6

< 28< 4

< 21 U< 2.1 U

< 4.1 U< 2.1 U

< 2.1 U< 2.1 U

< 2.1 U< 4.1 U

< 2.1 U< 2.1 U

< 2.1 U< 8.4

< 3< 3.7

< 70< 4.2

< 3.5< 100

< 120< 55

< 3.7< 4.2

< 2.9< 4.8

< 30< 4.2

< 21 U< 2.1 U

< 4.2 U< 2.1 U

< 2.1 U< 2.1 U

< 2.1 U< 4.2 U

< 2.1 U< 2.1 U

< 2.1 U< 8.1

< 2.9< 3.6

< 67< 4

< 3.4< 95

< 110< 53

< 3.6< 4

< 2.8< 4.6

< 28< 4

Page 302: Table Proposed Cleanup Levels Groundwater · 10/21/2013  · Table 04 Summery of PrsllMnery Cost ES11motee for Soleening Feasibility Study Former Kest Property Carson, CA GeotFnlenGOneullanle

Table B-2Sub-Slab Soil Vapor Results

Former Kast Property

Carson, California

Residential Properties Sampled Through August 31, 2013

Page 70 of 235

Sample ID

AddressSam

ple Date

Sample Tim

eLocation

AnalyteU

nitsFrequency of D

etection

P24619SVH24619 PAN

AMA AVE

2010-04-2714:34

HouseP24619SVB

24619 PANAM

A AVE2010-04-27

15:08Back

P24619SVBD24619 PAN

AMA AVE

2010-04-2715:08

BackP24619SVF

24619 PANAM

A AVE2010-04-27

15:58Front

P24619SVH24619 PAN

AMA AVE

2010-05-2513:59

HouseP24619SVH

24619 PANAM

A AVE2010-10-11

14:30House

P24619SVF24619 PAN

AMA AVE

2010-10-1115:09

FrontP24619SVB

24619 PANAM

A AVE2010-10-11

15:57Back

P24619SVBS24619 PAN

AMA AVE

2010-10-1115:57

BackP24619SVF

24619 PANAM

A AVE2011-02-11

14:43Front

P24619SVB24619 PAN

AMA AVE

2011-02-1115:10

BackP24619SVHA

24619 PANAM

A AVE2011-12-08

15:10House

P24619SVF24619 PAN

AMA AVE

2011-12-0815:39

FrontP24619SVFS

24619 PANAM

A AVE2011-12-08

15:39Front

P24619SVB24619 PAN

AMA AVE

2011-12-0816:09

BackP24619SVBS

24619 PANAM

A AVE2011-12-08

16:09Back

R24619SVF24619 RAVEN

NA AVE

2010-08-3013:40

FrontR24619SVB

24619 RAVENN

A AVE2010-08-30

14:24Back

R24619SVBD24619 RAVEN

NA AVE

2010-08-3014:24

BackR24619SVF

24619 RAVENN

A AVE2013-03-01

09:58Front

R24619SVFS24619 RAVEN

NA AVE

2013-03-0109:58

FrontR24619SVB

24619 RAVENN

A AVE2013-03-01

10:28Back

R24619SVBS24619 RAVEN

NA AVE

2013-03-0110:28

BackR24619SVHA

24619 RAVENN

A AVE2013-03-15

09:41House

R24619SVHA24619 RAVEN

NA AVE

2013-07-1914:47

HouseR24619SVB

24619 RAVENN

A AVE2013-07-19

14:49Back

R24619SVF24619 RAVEN

NA AVE

2013-07-1915:24

FrontM

24622SVH24622 M

ARBELLA AVE2010-05-28

13:48House

M24622SVB

24622 MARBELLA AVE

2010-05-2814:26

BackM

24622SVG24622 M

ARBELLA AVE2010-05-28

15:27G

arageM

24622SVH24622 M

ARBELLA AVE2012-11-16

09:57House

M24622SVG

24622 MARBELLA AVE

2012-11-1610:05

Garage

M24622SVB

24622 MARBELLA AVE

2012-11-1610:41

BackM

24622SVB24622 M

ARBELLA AVE2013-06-07

09:45Back

M24622SVBS

24622 MARBELLA AVE

2013-06-0709:45

BackM

24622SVH24622 M

ARBELLA AVE2013-06-07

09:47House

M24622SVG

24622 MARBELLA AVE

2013-06-0710:09

Garage

M24622SVG

S24622 M

ARBELLA AVE2013-06-07

10:09G

arageN

24622SVB24622 N

EPTUN

E AVE2010-08-19

09:33Back

N24622SVH

24622 NEPTU

NE AVE

2010-08-1910:18

HouseN

24622SVF24622 N

EPTUN

E AVE2010-08-19

11:03Front

N24622SVF

24622 NEPTU

NE AVE

2011-02-0109:40

FrontN

24622SVB24622 N

EPTUN

E AVE2011-02-01

10:25Back

N24622SVH

24622 NEPTU

NE AVE

2011-02-0111:06

HouseN

24622SVH24622 N

EPTUN

E AVE2012-03-30

10:57House

N24622SVF

24622 NEPTU

NE AVE

2013-08-2110:21

FrontN

24622SVFS24622 N

EPTUN

E AVE2013-08-21

10:21Front

N24622SVB

24622 NEPTU

NE AVE

2013-08-2110:40

BackN

24622SVHA24622 N

EPTUN

E AVE2013-08-23

12:34House

M24623SVH

24623 MARBELLA AVE

2010-08-0313:50

HouseM

24623SVG24623 M

ARBELLA AVE2010-08-03

14:07G

arageM

24623SVGD

24623 MARBELLA AVE

2010-08-0314:07

Garage

IsopropanolHexane

p/m-Xylene

C6-C8 Aliphatics

1,2,4-Trim

ethyl-benzene

HeptaneC8-C10

AliphaticsC10-C12

AliphaticsC5-C6

AliphaticsEthyl-

benzene

Cumene

(Isopropyl-benzene)

CyclohexaneFreon 11

Methylene

Chloride4-Ethyltoluene

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

4.47%3.74%

3.12%2.72%

2.63%2.63%

2.54%2.01%

2.01%1.97%

1.89%1.89%

1.72%1.72%

1.60%

48< 3.9

< 4.9< 92 N

,J< 5.5

< 4.6< 130 N

,J< 160 N

,J< 72 N

,J< 4.9

< 5.5< 3.8

< 6.3< 3.9

< 5.5< 12

< 4.2< 5.2

< 98 N,J

< 5.9< 4.9

< 140 N,J

< 170 N,J

< 77 N,J

< 5.2< 5.9

< 4.1< 6.7

< 4.2< 5.9

< 12< 4.2

< 5.2< 98 N

,J< 5.9

< 4.9< 140 N

,J< 170 N

,J< 77 N

,J< 5.2

< 5.9< 4.1

< 6.7< 4.2

< 5.9< 12

< 4.2< 5.2

< 98 N,J

< 5.9< 4.9

< 140 N,J

< 170 N,J

< 77 N,J

< 5.2< 5.9

< 4.1< 6.7

< 4.2< 5.9

< 12< 4.3

< 5.2< 99 N

,J< 5.9

< 5< 140 N

,J< 170 N

,J< 78 N

,J< 5.2

< 5.9< 4.2

< 6.8< 4.2

< 5.9< 12

< 4.4< 5.4

< 100< 6.1

< 5.1< 140

< 170< 80

< 5.4< 6.1

< 4.2< 6.9

< 4.3< 6.1

< 12< 4.2

< 5.2< 98

< 5.8< 4.9

< 140< 160

< 77< 5.2

< 5.8< 4.1

< 6.7< 4.1

< 5.8< 12

< 4.3< 5.2

< 99< 5.9

< 5< 140

< 170< 78

< 5.2< 5.9

< 4.2< 6.8

< 4.2< 5.9

5.9< 1.7

< 3.4< 1.7

< 1.7< 1.7

< 1.7< 3.4

< 1.7< 1.7

< 1.7< 12

< 4.2< 5.2

< 98< 5.8

< 4.9< 140

< 160< 77

< 5.2< 5.8

< 4.1< 6.7

< 4.1< 5.8

< 12< 4.2

< 5.2< 98

< 5.8< 4.9

< 140< 160

< 77< 5.2

< 5.8< 4.1

< 6.7< 4.1

< 5.8< 7.5

< 2.7< 3.3

< 62< 3.7

< 3.1< 88

< 100< 49

< 3.3< 3.7

< 2.6< 4.3

< 2.6< 3.7

< 8.1< 2.9

< 3.6< 67

< 4< 3.4

< 95< 110

< 53< 3.6

< 4< 2.8

< 4.6< 2.8

< 4< 3.7 U

< 1.8 U< 3.7 U

< 1.8 U< 1.8 U

< 1.8 U< 1.8 U

< 3.7 U< 1.8 U

< 1.8 U< 1.8 U

< 7.6< 2.7

< 3.4< 64

< 3.8< 3.2

< 90< 110

< 50< 3.4

< 3.8< 2.7

< 4.4< 2.7

< 3.8< 3.4 U

< 1.7 U< 3.4 U

< 1.7 U< 1.7 U

< 1.7 U< 1.7 U

< 3.4 U< 1.7 U

< 1.7 U< 1.7 U

< 12< 4.4

< 5.5< 100

< 6.2< 5.2

< 150< 180

< 82< 5.5

< 6.2< 4.3

< 7.16.8 b

< 6.2< 12

< 4.3< 5.3

< 100< 6

< 5< 140

< 170< 79

< 5.3< 6

< 4.2< 6.8

< 4.2< 6

< 16< 5.6

< 6.9< 130

< 7.8< 6.5

< 180< 220

< 100< 6.9

< 7.8< 5.5

< 9< 5.5

< 7.8< 12

< 4.3< 5.3

< 100< 6

< 5< 140

< 170< 79

< 5.3< 6

< 4.2< 6.8

< 42< 6

< 17 U< 1.7 U

< 3.3 U< 1.7 U

< 1.7 U< 1.7 U

< 1.7 U< 3.3 U

< 1.7 U< 1.7 U

< 1.7 U< 12

< 4.1< 5.1

< 96< 5.8

< 4.8< 140

< 160< 76

< 5.1< 5.8

< 4< 6.6

< 41< 5.8

< 17 U< 1.7 U

< 3.3 U< 1.7 U

< 1.7 U< 1.7 U

< 1.7 U< 3.3 U

< 1.7 U< 1.7 U

< 1.7 U< 12

< 4.1< 5.1

< 96< 5.8

< 4.8< 140

< 160< 76

< 5.1< 5.8

< 4< 6.6

< 41< 5.8

< 11< 3.8

< 4.7< 88

< 5.3< 4.4

< 120< 150

< 70< 4.7

< 5.3< 3.7

< 6.1< 38

< 5.3< 11

< 4.1< 5

< 95< 5.7

< 4.8< 140

< 160< 75

< 5< 5.7

< 4< 6.5

< 40< 5.7

< 12< 4.3

< 5.2< 99

< 5.9< 5

< 140< 170

< 78< 5.2

< 5.9< 4.2

< 6.8< 42

< 5.9< 11

< 4.1< 5

< 95 N,J

< 5.7< 4.7

< 130 N,J

< 160 N,J

< 75 N,J

< 5< 5.7

< 4< 6.5

< 4< 5.7

< 11< 3.9

< 4.8< 91 N

,J< 5.5

< 4.6< 130 N

,J< 160 N

,J< 72 N

,J< 4.8

< 5.5< 3.8

< 6.3< 3.9

< 5.5< 11

< 4< 5

< 94 N,J

< 5.6< 4.7

< 130 N,J

< 160 N,J

< 74 N,J

< 5< 5.6

< 4< 6.5

< 4< 5.6

< 11< 3.9

< 4.9< 92

< 5.5< 4.6

< 130< 160

< 72< 4.9

< 5.5< 3.8

< 6.3< 39

< 5.5< 11

< 4.1< 5

< 95< 5.7

< 4.8< 140

< 160< 75

< 5< 5.7

< 4< 6.5

< 40< 5.7

< 11< 3.9

< 4.9< 92

< 5.5< 4.6

< 130< 160

< 72< 4.9

< 5.5< 3.8

< 6.3< 39

< 5.5< 12

< 4.2< 5.1

< 97< 5.8

< 4.8< 140

< 160< 76

< 5.1< 5.8

< 4.1< 6.6

< 41< 5.8

< 20 U< 2 U

< 4 U< 2 U

< 2 U< 2 U

< 2 U< 4 U

< 2 U< 2 U

< 2 U< 11

< 4.1< 5

< 95< 5.7

< 4.7< 130

< 160< 75

< 5< 5.7

< 4< 6.5

< 40< 5.7

< 12< 4.2

< 5.1< 97

< 5.8< 4.8

< 140< 160

< 76< 5.1

< 5.8< 4.1

< 6.6< 41

< 5.8< 20 U

< 2 U< 4 U

< 2 U< 2 U

< 2 U< 2 U

< 4 U< 2 U

< 2 U< 2 U

< 11< 4

< 5< 94

< 5.6< 4.7

< 130< 160

< 74< 5

< 5.6< 4

< 6.5< 4

< 5.6< 11

< 4.1< 5

< 95< 5.7

< 4.8< 140

< 160< 75

< 5< 5.7

< 4< 6.5

< 4< 5.7

< 12< 4.3

< 5.2< 99

< 5.9< 5

< 140< 170

< 78< 5.2

< 5.9< 4.2

< 6.8< 4.2

< 5.9< 11

< 4< 5

< 94< 5.6

< 4.7< 130

< 160< 74

< 5< 5.6

< 4< 6.5

< 4< 5.6

< 12< 4.4

< 5.5< 100

< 6.2< 5.2

< 150< 180

< 82< 5.5

< 6.2< 4.3

< 7.1< 4.4

< 6.2< 12

< 4.3< 5.2

< 998.1

< 51400

< 170< 78

< 5.2< 5.9

< 4.2< 6.8

< 4.27.9

< 7.7< 2.7

< 3.4< 64

7.4< 3.2

< 91< 110

< 50< 3.4

< 3.8< 2.7

< 4.4< 27

< 3.8< 12

< 4.3< 5.3

< 100< 6

< 5< 140

< 170< 79

< 5.3< 6

< 4.2< 6.8

< 42< 6

< 21 U2.1

< 4.2 U< 2.1 U

< 2.1 U< 2.1 U

< 2.1 U< 4.2 U

< 2.1 U< 2.1 U

< 2.1 U< 12

< 4.5< 5.5

< 100< 6.3

< 5.2< 150

< 180< 82

< 5.5< 6.3

< 4.4< 7.2

< 44< 6.3

< 12< 4.2

< 5.2< 98

< 5.9< 4.9

< 140< 170

< 78< 5.2

< 5.9< 4.1

< 6.7< 42

< 5.9< 11

< 4.1< 5

< 95 N,J

< 5.7< 4.8

< 140 N,J

< 160 N,J

< 75 N,J

< 531

< 4< 6.5

< 4< 5.7

< 12< 4.2

< 5.2< 98 N

,J< 5.8

< 4.9< 140 N

,J< 160 N

,J< 77 N

,J< 5.2

< 5.8< 4.1

< 6.7< 4.1

< 5.8< 12

< 4.3< 5.2

< 99 N,J

< 5.9< 5

< 140 N,J

< 170 N,J

< 78 N,J

< 5.2< 5.9

< 4.2< 6.8

< 4.2< 5.9

Page 303: Table Proposed Cleanup Levels Groundwater · 10/21/2013  · Table 04 Summery of PrsllMnery Cost ES11motee for Soleening Feasibility Study Former Kest Property Carson, CA GeotFnlenGOneullanle

Table B-2Sub-Slab Soil Vapor Results

Former Kast Property

Carson, California

Residential Properties Sampled Through August 31, 2013

Page 71 of 235

Sample ID

AddressSam

ple Date

Sample Tim

eLocation

AnalyteU

nitsFrequency of D

etection

M24623SVB

24623 MARBELLA AVE

2010-08-0314:37

BackM

24623SVG24623 M

ARBELLA AVE2011-01-28

15:15G

arageM

24623SVH24623 M

ARBELLA AVE2011-01-28

15:21House

M24623SVB

24623 MARBELLA AVE

2011-01-2815:53

BackN

24623SVH24623 N

EPTUN

E AVE2010-06-11

13:58House

N24623SVF

24623 NEPTU

NE AVE

2010-06-1114:50

FrontN

24623SVB24623 N

EPTUN

E AVE2011-02-16

09:43Back

N24623SVF

24623 NEPTU

NE AVE

2011-02-1610:20

FrontN

24623SVFD24623 N

EPTUN

E AVE2011-02-16

10:20Front

N24623SVH

24623 NEPTU

NE AVE

2011-02-1611:08

HouseN

24623SVF24623 N

EPTUN

E AVE2011-03-31

10:49Front

N24623SVFS

24623 NEPTU

NE AVE

2011-03-3110:49

FrontN

24623SVH24623 N

EPTUN

E AVE2011-03-31

11:07House

N24623SVB

24623 NEPTU

NE AVE

2011-03-3111:39

BackN

24623SVBS24623 N

EPTUN

E AVE2011-03-31

11:39Back

M24627SVH

24627 MARBELLA AVE

2010-07-1913:48

HouseM

24627SVG24627 M

ARBELLA AVE2010-07-19

14:24G

arageM

24627SVB24627 M

ARBELLA AVE2010-07-19

15:05Back

M24627SVH

24627 MARBELLA AVE

2012-05-1114:43

HouseM

24627SVG24627 M

ARBELLA AVE2012-05-11

14:49G

arageM

24627SVGD

24627 MARBELLA AVE

2012-05-1114:49

Garage

M24627SVB

24627 MARBELLA AVE

2012-05-1115:21

BackM

24628SVF24628 M

ARBELLA AVE2010-12-03

13:44Front

M24628SVFD

24628 MARBELLA AVE

2010-12-0313:44

FrontM

24628SVB24628 M

ARBELLA AVE2010-12-03

14:31Back

M24628SVH

24628 MARBELLA AVE

2011-06-2310:40

HouseM

24628SVHS24628 M

ARBELLA AVE2011-06-23

10:40House

M24628SVB

24628 MARBELLA AVE

2011-06-2311:24

BackM

24628SVBS24628 M

ARBELLA AVE2011-06-23

11:24Back

M24628SVF

24628 MARBELLA AVE

2011-06-2312:12

FrontM

24628SVFD24628 M

ARBELLA AVE2011-06-23

12:12Front

M24628SVF

24628 MARBELLA AVE

2011-10-2713:09

FrontM

24628SVFS24628 M

ARBELLA AVE2011-10-27

13:09Front

M24628SVH

24628 MARBELLA AVE

2011-10-2714:12

HouseM

24628SVHS24628 M

ARBELLA AVE2011-10-27

14:12House

M24628SVB

24628 MARBELLA AVE

2011-10-2714:55

BackM

24628SVBS24628 M

ARBELLA AVE2011-10-27

14:55Back

N24628SVH

24628 NEPTU

NE AVE

2010-10-2713:02

HouseN

24628SVG2

24628 NEPTU

NE AVE

2010-10-2713:35

Garage

N24628SVH

24628 NEPTU

NE AVE

2013-02-0714:34

HouseN

24628SVBA24628 N

EPTUN

E AVE2013-02-07

14:35Back

N24628SVG

224628 N

EPTUN

E AVE2013-02-07

15:12G

arageN

24628SVBA24628 N

EPTUN

E AVE2013-06-19

15:03Back

N24628SVBAD

24628 NEPTU

NE AVE

2013-06-1915:03

BackN

24628SVH24628 N

EPTUN

E AVE2013-06-19

15:05House

N24628SVG

224628 N

EPTUN

E AVE2013-06-19

15:38G

arageN

24629SVH24629 N

EPTUN

E AVE2010-07-09

13:57House

N24629SVF

24629 NEPTU

NE AVE

2010-07-0915:14

FrontN

24629SVB24629 N

EPTUN

E AVE2010-07-09

15:32Back

N24629SVB

24629 NEPTU

NE AVE

2011-02-0315:16

BackN

24629SVH24629 N

EPTUN

E AVE2011-02-03

15:24House

N24629SVF

24629 NEPTU

NE AVE

2011-02-0315:57

Front

IsopropanolHexane

p/m-Xylene

C6-C8 Aliphatics

1,2,4-Trim

ethyl-benzene

HeptaneC8-C10

AliphaticsC10-C12

AliphaticsC5-C6

AliphaticsEthyl-

benzene

Cumene

(Isopropyl-benzene)

CyclohexaneFreon 11

Methylene

Chloride4-Ethyltoluene

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

4.47%3.74%

3.12%2.72%

2.63%2.63%

2.54%2.01%

2.01%1.97%

1.89%1.89%

1.72%1.72%

1.60%

< 12< 4.4

< 5.4< 100 N

,J< 6.1

< 5.1< 140 N

,J< 170 N

,J< 80 N

,J< 5.4

< 6.1< 4.2

< 6.9< 4.3

12< 12

< 4.3< 5.2

< 99< 5.9

< 5< 140

< 170< 78

< 5.2< 5.9

< 4.2< 6.8

< 4.2< 5.9

< 11< 4

< 5< 94

< 5.6< 4.7

< 130< 160

< 74< 5

< 5.6< 3.9

< 6.4< 4

< 5.6< 12

< 4.4< 5.5

< 100< 6.2

< 5.2< 150

< 180< 82

< 5.5< 6.2

< 4.3< 7.1

< 4.4< 6.2

< 11< 4.1

< 5< 95 N

,J< 5.7

< 4.8220 N

,J< 160 N

,J< 75 N

,J< 5

< 5.7< 4

< 6.5< 4

< 5.7< 12

< 4.2< 5.2

< 98 N,J

< 5.8< 4.9

< 140 N,J

< 160 N,J

< 77 N,J

< 5.2< 5.8

< 4.1< 6.7

< 4.1< 5.8

< 11< 4

< 5< 93

< 5.6< 4.7

< 130< 160

< 74< 4.9

< 5.6< 3.9

72< 4

< 5.6< 12

< 4.3< 5.2

< 99< 5.9

< 5< 140

< 170< 78

< 5.2< 5.9

< 4.2< 6.8

< 4.2< 5.9

< 12< 4.3

6< 99

< 5.9< 5

< 140< 170

< 78< 5.2

< 5.9< 4.2

< 6.8< 4.2

< 5.9< 12

< 4.2< 5.1

< 97< 5.8

< 4.8< 140

< 160< 77

< 5.1< 5.8

< 4.1< 6.6

< 4.1< 5.8

< 11< 4.1

< 5< 95

< 5.7< 4.8

< 140< 160

< 75< 5

< 5.7< 4

< 6.5< 4

< 5.7< 3.6

< 1.8< 3.6

< 1.8< 1.8

< 1.8< 1.8

< 3.61.9

< 1.8< 1.8

< 11< 4.1

< 5< 95

< 5.7< 4.8

< 140< 160

< 75< 5

< 5.7< 4

< 6.5< 4

< 5.7< 11

< 4< 5

< 94< 5.6

< 4.7< 130

< 160< 74

< 5< 5.6

< 3.942

< 4< 5.6

< 3.6< 1.8

< 3.6< 1.8

< 1.8< 1.8

< 1.8< 3.6

32< 1.8

< 1.8< 11

< 4.1< 5

< 95 N,J

< 5.7< 4.8

< 140 N,J

< 160 N,J

< 75 N,J

< 5< 5.7

< 4< 6.5

< 4< 5.7

< 11< 4.1

< 5< 95 N

,J< 5.7

< 4.8< 140 N

,J< 160 N

,J< 75 N

,J< 5

< 5.7< 4

< 6.5< 4

< 5.7< 12

< 4.4< 5.5

< 100 N,J

< 6.2< 5.2

< 150 N,J

< 180 N,J

< 82 N,J

< 5.5< 6.2

< 4.4< 7.1

< 4.4< 6.2

< 7.6< 2.7

< 3.4< 64

< 3.8< 3.2

< 90< 110

< 50< 3.4

< 3.8< 2.7

< 4.4< 27

< 3.8< 8.1

< 2.9< 3.6

< 67< 4

< 3.4< 95

< 110< 53

< 3.6< 4

< 2.8< 4.6

< 28< 4

< 8.1< 2.9

< 3.6< 67

< 4< 3.4

< 95< 110

< 53< 3.6

< 4< 2.8

< 4.6< 28

< 4< 8.1

< 2.9< 3.6

< 67< 4

< 3.4< 95

< 110< 53

< 3.6< 4

< 2.8< 4.6

< 28< 4

< 11< 4.1

7.8< 95

< 5.7< 4.8

< 140< 160

< 75< 5

< 5.7< 4

< 6.5< 4

< 5.7< 12

< 4.2< 5.2

< 98< 5.8

< 4.9< 140

< 160< 77

< 5.2< 5.8

< 4.1< 6.7

< 4.1< 5.8

< 12< 4.2

< 5.2< 98

< 5.8< 4.9

< 140< 160

< 77< 5.2

< 5.8< 4.1

< 6.7< 4.1

< 5.8< 11

< 4.1< 5

< 95< 5.7

< 4.8< 140

< 160< 75

< 5< 5.7

< 4< 6.5

< 4< 5.7

< 3.5 U< 1.8 U

< 3.5 U< 1.8 U

< 1.8 U< 1.8 U

< 1.8 U< 3.5 U

< 1.8 U< 1.8 U

< 1.8 U< 11

< 4.1< 5

< 95< 5.7

< 4.8< 140

< 160< 75

< 5< 5.7

< 4< 6.5

< 4< 5.7

< 3.6 U< 1.8 U

< 3.6 U< 1.8 U

< 1.8 U< 1.8 U

< 1.8 U< 3.6 U

< 1.8 U< 1.8 U

< 1.8 U< 11

< 4.1< 5

< 95< 5.7

< 4.8< 140

< 160< 75

< 5< 5.7

< 4< 6.5

< 4< 5.7

< 11< 4.1

< 5< 95

< 5.7< 4.8

< 140< 160

< 75< 5

< 5.7< 4

< 6.5< 4

< 5.7< 7.9

< 2.8< 3.5

< 66< 4

< 3.3< 94

< 110< 52

< 3.5< 4

< 2.8< 4.5

< 2.8< 4

< 3.6 U< 1.8 U

< 3.6 U< 1.8 U

< 1.8 U< 1.8 U

< 1.8 U< 3.6 U

< 1.8 U< 1.8 U

< 1.8 U< 7.9

< 2.8< 3.5

< 66< 4

< 3.3< 94

< 110< 52

< 3.5< 4

< 2.8< 4.5

< 2.8< 4

< 3.6 U< 1.8 U

< 3.6 U< 1.8 U

< 1.8 U< 1.8 U

< 1.8 U< 3.6 U

< 1.8 U< 1.8 U

< 1.8 U< 7.6

< 2.7< 3.4

< 64< 3.8

< 3.2< 90

< 110< 50

< 3.4< 3.8

< 2.7< 4.4

< 2.7< 3.8

< 3.5 U< 1.7 U

< 3.5 U< 1.7 U

< 1.7 U< 1.7 U

< 1.7 U< 3.5 U

< 1.7 U< 1.7 U

< 1.7 U< 12

< 4.2< 5.2

< 98< 5.9

< 4.9< 140

< 170< 77

< 5.2< 5.9

< 4.1< 6.7

< 4.2< 5.9

< 11< 4

< 4.9< 93

< 5.6< 4.6

< 130< 160

< 73< 4.9

< 5.6< 3.9

< 6.3< 3.9

< 5.6< 12

< 4.4< 5.4

< 100< 6.1

< 5.1< 140

< 170< 80

< 5.4< 6.1

< 4.2< 6.9

< 43< 6.1

< 26< 9.3

< 12< 220

< 13< 11

< 310< 370

< 170< 12

< 13< 9.1

< 15< 92

< 13< 11

< 4.1< 5

< 95< 5.7

< 4.8< 140

< 160< 75

< 5< 5.7

< 4< 6.5

< 40< 5.7

< 11< 4

< 5< 93

< 5.6< 4.7

< 130< 160

< 74 PF< 4.9

< 5.6< 3.9

< 6.4< 40

< 5.6< 11

< 4< 4.9

< 93< 5.6

< 4.6< 130

< 160< 73 PF

< 4.9< 5.6

< 3.9< 6.3

< 39< 5.6

< 11< 3.9

< 4.9< 92

< 5.5< 4.6

< 130< 160

< 72 PF< 4.9

< 5.5< 3.8

< 6.3< 39

< 5.5< 11

< 4.1< 5

< 95< 5.7

< 4.8< 140

< 160< 75 PF

< 5< 5.7

< 4< 6.5

< 40< 5.7

< 12< 4.3

< 5.2< 99 N

,J< 5.9

< 5< 140 N

,J< 170 N

,J< 78 N

,J< 5.2

< 5.9< 4.2

< 6.8< 4.2

< 5.9< 11

< 4.1< 5

< 95 N,J

< 5.7< 4.8

< 140 N,J

< 160 N,J

< 75 N,J

< 5< 5.7

< 4< 6.5

7.3< 5.7

12< 4.1

< 5< 95 N

,J9.2

< 4.8< 140 N

,J< 160 N

,J< 75 N

,J< 5

100< 4

< 6.5< 4

< 5.7< 11

< 4.1< 5

< 95< 5.7

< 4.8< 140

< 160< 75

< 5< 5.7

< 4< 6.5

< 4< 5.7

< 12< 4.2

< 5.2< 98

< 5.9< 4.9

< 140< 170

< 77< 5.2

< 5.9< 4.1

< 6.7< 4.2

< 5.9< 12

< 4.2< 5.2

< 170< 5.9

< 4.9< 250

< 300< 140

< 5.2< 5.9

< 4.1< 6.7

< 4.2< 5.9

Page 304: Table Proposed Cleanup Levels Groundwater · 10/21/2013  · Table 04 Summery of PrsllMnery Cost ES11motee for Soleening Feasibility Study Former Kest Property Carson, CA GeotFnlenGOneullanle

Table B-2Sub-Slab Soil Vapor Results

Former Kast Property

Carson, California

Residential Properties Sampled Through August 31, 2013

Page 72 of 235

Sample ID

AddressSam

ple Date

Sample Tim

eLocation

AnalyteU

nitsFrequency of D

etection

N24632SVF

24632 NEPTU

NE AVE

2009-10-0213:16

FrontN

24632SVB24632 N

EPTUN

E AVE2009-10-02

14:09Back

N24632SVF

24632 NEPTU

NE AVE

2010-07-2010:44

FrontN

24632SVG24632 N

EPTUN

E AVE2010-08-24

08:55G

arageN

24632SVB24632 N

EPTUN

E AVE2010-08-24

09:39Back

N24632SVF

24632 NEPTU

NE AVE

2013-02-0812:50

FrontN

24632SVG24632 N

EPTUN

E AVE2013-02-08

13:28G

arageN

24632SVBA24632 N

EPTUN

E AVE2013-08-09

09:56Back

N24632SVBAS

24632 NEPTU

NE AVE

2013-08-0909:56

BackN

24632SVF24632 N

EPTUN

E AVE2013-08-09

10:04Front

N24632SVG

24632 NEPTU

NE AVE

2013-08-0910:23

Garage

M24700SVH

24700 MARBELLA AVE

2010-06-0909:02

HouseM

24700SVHS24700 M

ARBELLA AVE2010-06-09

09:02House

M24700SVF

24700 MARBELLA AVE

2010-06-0909:38

FrontM

24700SVB24700 M

ARBELLA AVE2010-06-09

10:24Back

M24700SVB

24700 MARBELLA AVE

2010-07-1514:27

BackM

24700SVF24700 M

ARBELLA AVE2010-07-15

15:22Front

M24700SVH

24700 MARBELLA AVE

2010-07-1516:12

HouseM

24700SVF24700 M

ARBELLA AVE2011-10-20

10:29Front

M24700SVB

24700 MARBELLA AVE

2011-10-2011:10

BackM

24700SVH24700 M

ARBELLA AVE2011-10-20

15:18House

M24700SVHD

24700 MARBELLA AVE

2011-10-2015:18

HouseM

24700SVH24700 M

ARBELLA AVE2013-03-15

14:45House

M24700SVB

24700 MARBELLA AVE

2013-03-1514:47

BackM

24700SVBS24700 M

ARBELLA AVE2013-03-15

14:47Back

M24700SVF

24700 MARBELLA AVE

2013-03-1515:23

FrontM

24700SVFD24700 M

ARBELLA AVE2013-03-15

15:23Front

P24702SVH24702 PAN

AMA AVE

2010-06-0309:09

HouseP24702SVG

24702 PANAM

A AVE2010-06-03

09:56G

arageP24702SVG

S24702 PAN

AMA AVE

2010-06-0309:56

Garage

P24702SVB24702 PAN

AMA AVE

2010-06-0310:38

BackP24702SVG

24702 PANAM

A AVE2011-02-24

15:30G

arageP24702SVH

24702 PANAM

A AVE2011-02-24

15:34House

P24702SVB24702 PAN

AMA AVE

2011-02-2416:20

BackP24702SVB

24702 PANAM

A AVE2013-06-12

09:46Back

P24702SVBS24702 PAN

AMA AVE

2013-06-1209:46

BackP24702SVH

24702 PANAM

A AVE2013-06-12

09:56House

P24702SVG24702 PAN

AMA AVE

2013-06-1210:18

Garage

P24702SVGS

24702 PANAM

A AVE2013-06-12

10:18G

arageM

24703SVF24703 M

ARBELLA AVE2010-03-29

11:37Front

M24703SVH

24703 MARBELLA AVE

2010-03-2912:58

HouseM

24703SVB24703 M

ARBELLA AVE2010-03-29

13:53Back

M24703SVH

24703 MARBELLA AVE

2010-08-2309:27

HouseM

24703SVF24703 M

ARBELLA AVE2010-08-23

10:15Front

M24703SVB

24703 MARBELLA AVE

2010-08-2310:57

BackM

24703SVH24703 M

ARBELLA AVE2012-04-20

14:49House

M24703SVB

24703 MARBELLA AVE

2012-04-2015:21

BackM

24703SVBD24703 M

ARBELLA AVE2012-04-20

15:21Back

M24703SVF

24703 MARBELLA AVE

2012-04-2015:47

FrontM

24703SVB24703 M

ARBELLA AVE2013-07-11

09:37Back

M24703SVBD

24703 MARBELLA AVE

2013-07-1109:37

BackM

24703SVF24703 M

ARBELLA AVE2013-07-11

09:45Front

IsopropanolHexane

p/m-Xylene

C6-C8 Aliphatics

1,2,4-Trim

ethyl-benzene

HeptaneC8-C10

AliphaticsC10-C12

AliphaticsC5-C6

AliphaticsEthyl-

benzene

Cumene

(Isopropyl-benzene)

CyclohexaneFreon 11

Methylene

Chloride4-Ethyltoluene

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

4.47%3.74%

3.12%2.72%

2.63%2.63%

2.54%2.01%

2.01%1.97%

1.89%1.89%

1.72%1.72%

1.60%

< 12< 4.2

< 5.2< 98 N

,J< 5.9

< 4.9< 140 N

,J< 170 N

,J< 77 N

,J< 5.2

< 5.9< 4.1

< 6.7< 4.2

< 5.9< 12

< 4.5< 5.5

< 100 N,J

< 6.3< 5.2

< 150 N,J

< 180 N,J

< 82 N,J

< 5.5< 6.3

< 4.4< 7.2

< 4.4< 6.3

< 11< 4.1

< 5< 95 N

,J< 5.7

< 4.8< 140 N

,J< 160 N

,J< 75 N

,J< 5

< 5.7< 4

< 6.5< 4

< 5.7< 12

< 4.2< 5.1

< 97< 5.8

< 4.8< 140

< 160< 77

< 5.1< 5.8

< 4.1< 6.6

< 4.1< 5.8

< 12< 4.3

< 5.2< 99

< 5.9< 5

< 140< 170

< 78< 5.2

< 5.9< 4.2

< 6.8< 4.2

< 5.9< 11

< 3.9< 4.9

< 92< 5.5

< 4.6< 130

< 160< 72

< 4.9< 5.5

< 3.8< 6.3

< 39< 5.5

< 11< 3.9

< 4.8< 90

< 5.4< 4.5

< 130< 150

< 71< 4.8

< 5.4< 3.8

< 6.2< 38

< 5.4< 12

14< 5.5

120< 6.3

9650

1200150

< 5.5< 6.3

< 4.4< 7.2

< 44< 6.3

< 21 U13

< 4.3 U< 2.1 U

8.3< 2.1 U

< 2.1 U< 4.3 U

< 2.1 U< 2.1 U

< 2.1 U< 12

< 4.4< 5.5

< 100< 6.2

< 5.2< 150

< 180< 82

< 5.5< 6.2

< 4.3< 7.1

< 44< 6.2

< 11< 4

< 4.9< 93

< 5.6< 4.6

< 130< 160

< 73< 4.9

< 5.6< 3.9

< 6.3< 39

< 5.6< 12

< 4.2< 5.1

< 97 N,J

< 5.8< 4.8

< 140 N,J

< 160 N,J

< 77 N,J

< 5.1< 5.8

< 4.1< 6.6

< 4.1< 5.8

< 3.5< 1.7

< 3.5< 1.7

< 1.7< 1.7

< 1.7< 3.5

< 1.7< 1.7

< 1.7< 12

< 4.2< 5.2

< 98 N,J

< 5.9< 4.9

< 140 N,J

< 170 N,J

< 77 N,J

< 5.2< 5.9

< 4.1< 6.7

< 4.2< 5.9

8825

< 5.11500 N

,J< 5.8

< 4.8500 N

,J< 160 N

,J810 N

,J< 5.1

< 5.867

< 6.6< 4.1

< 5.81400

28< 5.9

930 N,J

< 6.7< 5.6

390 N,J

< 190 N,J

560 N,J

< 5.9< 6.7

30< 7.6

< 4.7< 6.7

< 11< 4

< 5< 94 N

,J< 5.6

< 4.7< 130 N

,J< 160 N

,J< 74 N

,J< 5

< 5.6< 4

< 6.5< 4

< 5.6< 11

< 4< 5

< 93 N,J

< 5.6< 4.7

< 130 N,J

< 160 N,J

< 74 N,J

< 4.9< 5.6

< 3.9< 6.4

< 4< 5.6

< 8.7< 3.1

< 3.9< 73

< 4.4< 3.6

< 100< 120

< 58< 3.9

< 4.4< 3.1

< 5< 3.1

< 4.4< 9.9

< 3.5< 4.4

< 82< 4.9

< 4.1< 120

< 140< 65

< 4.4< 4.9

< 3.4< 5.6

< 3.5< 4.9

< 7.9< 2.8

< 3.5< 66

< 4< 3.3

< 94< 110

< 52< 3.5

< 4< 2.8

< 4.5< 2.8

< 4< 7.9

< 2.8< 3.5

< 66< 4

< 3.3< 94

< 110< 52

< 3.5< 4

< 2.8< 4.5

2.9< 4

< 12< 4.2

< 5.1< 97

< 5.8< 4.8

< 140< 160

< 77< 5.1

< 5.8< 4.1

< 6.6< 41

< 5.8< 11

< 4< 4.9

< 93< 5.6

< 4.6< 130

< 160< 73

< 4.9< 5.6

< 3.9< 6.3

< 39< 5.6

< 24 U< 2.4 U

< 4.9 U< 2.4 U

< 2.4 U< 2.4 U

< 2.4 U< 4.9 U

< 2.4 U< 2.4 U

< 2.4 U< 11

< 3.9< 4.8

< 91< 5.4

< 4.5530

1500< 72

< 4.8< 5.4

< 3.8< 6.2

< 38< 5.4

< 11< 4

< 4.9< 92

< 5.5< 4.6

5901500

< 73< 4.9

< 5.5< 3.9

< 6.3< 39

< 5.517

< 3.9< 4.9

< 92 N,J

< 5.5< 4.6

< 130 N,J

< 160 N,J

< 72 N,J

< 4.9< 5.5

< 3.8< 6.3

< 3.9< 5.5

< 11< 3.9

< 4.9< 92 N

,J< 5.5

< 4.6< 130 N

,J< 160 N

,J< 72 N

,J< 4.9

< 5.5< 3.8

< 6.3< 3.9

< 5.5< 3.3

< 1.7< 3.3

< 1.7< 1.7

< 1.7< 1.7

< 3.3< 1.7

< 1.7< 1.7

< 11< 4.1

< 5< 95 N

,J< 5.7

< 4.8< 140 N

,J< 160 N

,J< 75 N

,J< 5

< 5.7< 4

< 6.5< 4

< 5.7< 11

< 3.8< 4.7

< 89< 5.4

< 4.5< 130

< 150< 70

< 4.7< 5.4

< 3.8< 6.1

< 3.8< 5.4

< 12< 4.2

< 5.1< 97

< 5.8< 4.8

< 140< 160

< 77< 5.1

< 5.8< 4.1

< 6.6< 4.1

< 5.8< 12

< 4.2< 5.1

< 97< 5.8

< 4.8< 140

< 160< 77

< 5.1< 5.8

< 4.1< 6.6

< 4.1< 5.8

< 11< 4

< 5< 94

< 5.6< 4.7

< 130< 160

< 74< 5

< 5.6< 4

< 6.5< 40

< 5.6< 20 U

< 2 U< 4.1 U

< 2 U< 2 U

< 2 U< 2 U

< 4.1 U< 2 U

< 2 U< 2 U

< 12< 4.2

< 5.1< 97

< 5.8< 4.8

< 140< 160

< 76< 5.1

< 5.8< 4.1

< 6.6< 41

< 5.8< 11

< 4< 5

< 94< 5.6

< 4.7< 130

< 160< 74

< 5< 5.6

< 4< 6.5

< 40< 5.6

< 20 U< 2 U

< 4 U< 2 U

< 2 U< 2 U

< 2 U< 4 U

< 2 U< 2 U

< 2 U< 12

< 4.2< 5.2

< 98 N,J

< 5.9< 4.9

< 140 N,J

< 170 N,J

< 77 N,J

< 5.2< 5.9

< 4.1< 6.7

< 4.2< 5.9

< 11< 4.1

< 5< 95 N

,J< 5.7

< 4.8< 140 N

,J1100 N

,J< 75 N

,J< 5

< 5.7< 4

< 6.5< 4

< 5.7< 12

< 4.2< 5.1

< 97 N,J

< 5.8< 4.8

< 140 N,J

< 160 N,J

< 77 N,J

< 5.1< 5.8

< 4.1< 6.6

< 4.1< 5.8

< 12< 4.2

< 5.1< 97

< 5.8< 4.8

< 140< 160

< 77< 5.1

< 5.8< 4.1

< 6.6< 4.1

< 5.8< 11

< 4.1< 5

< 95< 5.7

< 4.8< 140

< 160< 75

< 5< 5.7

< 4< 6.5

< 4< 5.7

< 12< 4.3

< 5.2< 99

< 5.9< 5

< 140< 170

< 78< 5.2

< 5.9< 4.2

< 6.8< 4.2

< 5.98.3

< 2.8< 3.4

< 65< 3.9

< 3.2< 92

< 110< 51

< 3.4< 3.9

< 2.7< 4.4

< 27< 3.9

< 7.6< 2.7

< 3.4< 64

< 3.8< 3.2

< 90< 110

< 50< 3.4

< 3.8< 2.7

< 4.4< 27

< 3.8< 7.6

< 2.7< 3.4

< 64< 3.8

< 3.2< 90

< 110< 50

< 3.4< 3.8

< 2.7< 4.4

< 27< 3.8

< 7.6< 2.7

< 3.4< 64

< 3.8< 3.2

< 90< 110

< 50< 3.4

< 3.8< 2.7

< 4.4< 27

< 3.8< 12

< 4.3< 5.3

< 100< 6

< 5< 140

< 170< 80

< 5.3< 6

< 4.2< 6.9

< 43< 6

< 12< 4.2

< 5.2< 98

< 5.9< 4.9

< 140< 170

< 78< 5.2

< 5.9< 4.1

< 6.7< 42

< 5.9< 11

< 3.9< 4.8

< 90< 5.4

< 4.5< 130

< 150< 72

< 4.8< 5.4

< 3.8< 6.2

< 38< 5.4

Page 305: Table Proposed Cleanup Levels Groundwater · 10/21/2013  · Table 04 Summery of PrsllMnery Cost ES11motee for Soleening Feasibility Study Former Kest Property Carson, CA GeotFnlenGOneullanle

Table B-2Sub-Slab Soil Vapor Results

Former Kast Property

Carson, California

Residential Properties Sampled Through August 31, 2013

Page 73 of 235

Sample ID

AddressSam

ple Date

Sample Tim

eLocation

AnalyteU

nitsFrequency of D

etection

M24703SVH

24703 MARBELLA AVE

2013-07-1110:16

HouseN

24703SVB24703 N

EPTUN

E AVE2009-09-22

08:48Back

N24703SVF

24703 NEPTU

NE AVE

2009-09-2209:36

FrontN

24703SVFD24703 N

EPTUN

E AVE2009-09-22

09:36Front

N24703SVH

24703 NEPTU

NE AVE

2010-11-0314:04

HouseN

24703SVF24703 N

EPTUN

E AVE2010-11-03

14:54Front

N24703SVB

24703 NEPTU

NE AVE

2010-11-0315:45

BackN

24703SVBS24703 N

EPTUN

E AVE2010-11-03

15:45Back

N24703SVB

24703 NEPTU

NE AVE

2013-04-2614:43

BackN

24703SVH24703 N

EPTUN

E AVE2013-04-26

14:54House

N24703SVF

24703 NEPTU

NE AVE

2013-04-2615:16

FrontR24703SVH

24703 RAVENN

A AVE2010-10-11

09:26House

R24703SVG24703 RAVEN

NA AVE

2010-10-1110:14

Garage

R24703SVGS

24703 RAVENN

A AVE2010-10-11

10:14G

arageR24703SVB

24703 RAVENN

A AVE2010-10-11

11:03Back

R24703SVH24703 RAVEN

NA AVE

2013-03-0809:42

HouseR24703SVG

24703 RAVENN

A AVE2013-03-08

10:14G

arageR24703SVG

D24703 RAVEN

NA AVE

2013-03-0810:14

Garage

R24703SVH24703 RAVEN

NA AVE

2013-07-2409:53

HouseR24703SVB

24703 RAVENN

A AVE2013-07-24

10:06Back

R24703SVBD24703 RAVEN

NA AVE

2013-07-2410:06

BackR24703SVG

24703 RAVENN

A AVE2013-07-24

10:25G

arageM

24706SVB24706 M

ARBELLA AVE2011-01-31

13:56Back

M24706SVG

24706 MARBELLA AVE

2011-01-3114:48

Garage

M24706SVH

24706 MARBELLA AVE

2011-01-3116:20

HouseM

24706SVH24706 M

ARBELLA AVE2011-09-15

14:30House

M24706SVHD

24706 MARBELLA AVE

2011-09-1514:30

HouseM

24706SVB24706 M

ARBELLA AVE2011-09-15

15:10Back

M24706SVG

24706 MARBELLA AVE

2011-09-1516:01

Garage

M24706SVH

24706 MARBELLA AVE

2013-02-2114:53

HouseM

24706SVB24706 M

ARBELLA AVE2013-02-21

15:09Back

M24706SVBD

24706 MARBELLA AVE

2013-02-2115:09

BackM

24706SVG24706 M

ARBELLA AVE2013-02-21

15:27G

arageM

24706SVB24706 M

ARBELLA AVE2013-06-26

14:49Back

M24706SVH

24706 MARBELLA AVE

2013-06-2614:51

HouseM

24706SVG24706 M

ARBELLA AVE2013-06-26

15:17G

arageR24706SVB

24706 RAVENN

A AVE2010-08-23

00:00Back

R24706SVF24706 RAVEN

NA AVE

2010-08-2313:28

FrontR24706SVH

24706 RAVENN

A AVE2010-08-23

14:03House

R24706SVB24706 RAVEN

NA AVE

2013-04-2514:57

BackR24706SVH

24706 RAVENN

A AVE2013-04-25

14:59House

R24706SVF24706 RAVEN

NA AVE

2013-04-2515:28

FrontM

24707SVH24707 M

ARBELLA AVE2010-06-28

09:52House

M24707SVB

24707 MARBELLA AVE

2010-06-2811:30

BackM

24707SVH24707 M

ARBELLA AVE2011-05-06

14:12House

M24707SVB

24707 MARBELLA AVE

2011-05-0614:53

BackM

24707SVBS24707 M

ARBELLA AVE2011-05-06

14:53Back

M24707SVF

24707 MARBELLA AVE

2011-05-0615:24

FrontM

24707SVFS24707 M

ARBELLA AVE2011-05-06

15:26Front

M24707SVH

24707 MARBELLA AVE

2012-09-0710:34

HouseM

24707SVF24707 M

ARBELLA AVE2012-09-07

11:01Front

M24707SVFS

24707 MARBELLA AVE

2012-09-0711:01

Front

IsopropanolHexane

p/m-Xylene

C6-C8 Aliphatics

1,2,4-Trim

ethyl-benzene

HeptaneC8-C10

AliphaticsC10-C12

AliphaticsC5-C6

AliphaticsEthyl-

benzene

Cumene

(Isopropyl-benzene)

CyclohexaneFreon 11

Methylene

Chloride4-Ethyltoluene

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

4.47%3.74%

3.12%2.72%

2.63%2.63%

2.54%2.01%

2.01%1.97%

1.89%1.89%

1.72%1.72%

1.60%

< 11< 4.1

< 5< 95

< 5.7< 4.8

< 140< 160

< 75< 5

< 5.7< 4

< 6.5< 40

< 5.7< 13

< 4.8< 5.9

< 110 N,J

< 6.7< 5.6

< 160 N,J

< 190 UJ,N

,J< 88 N

,J< 5.9

10< 4.7

< 7.6< 4.7

< 6.7< 12

< 4.4< 5.4

< 100 N,J

< 6.1< 5.1

< 140 N,J

< 170 UJ,N

,J< 80 N

,J< 5.4

< 6.1< 4.3

< 7< 4.3

< 6.1< 12

< 4.312

< 100 N,J

62< 5

< 140 N,J

< 170 UJ,N

,J< 79 N

,J< 5.3

< 6< 4.2

< 6.8< 4.2

32< 12

< 4.1< 5.1

< 96< 5.8

< 4.8< 140

< 160< 76

< 5.1< 5.8

< 4< 6.6

< 4.1< 5.8

< 12< 4.2

< 5.1< 97

< 5.8< 4.8

< 140< 160

< 77< 5.1

< 5.8< 4.1

< 6.6< 4.1

< 5.8< 12

< 4.3< 5.3

< 100< 6

< 5< 140

< 170< 80

< 5.3< 6

< 4.2< 6.9

< 4.3< 6

< 3.6< 1.8

< 3.6< 1.8

< 1.8< 1.8

< 1.8< 3.6

< 1.8< 1.8

< 1.8< 12

< 4.5< 5.6

< 100< 6.3

< 5.2< 150

< 180< 83

< 5.6< 6.3

< 4.4< 7.2

< 44< 6.3

< 11< 3.9

< 4.8< 91

< 5.4< 4.5

< 130< 150

< 72< 4.8

< 5.4< 3.8

< 6.2< 38

< 5.418

< 4.3< 5.2

< 99< 5.9

< 5< 140

< 170< 78

< 5.2< 5.9

< 4.2< 6.8

< 42< 5.9

< 12< 4.2

< 5.2< 98

< 5.8< 4.9

< 140< 160

< 77< 5.2

< 5.8< 4.1

< 6.7< 4.1

< 5.8< 11

< 4.1< 5

< 95< 5.7

< 4.8< 140

< 160< 75

< 5< 5.7

< 4< 6.5

< 4< 5.7

< 3.4< 1.7

< 3.4< 1.7

< 1.7< 1.7

< 1.7< 3.4

< 1.7< 1.7

< 1.7< 11

< 4.1< 5

< 95< 5.7

< 4.8< 140

< 160< 75

< 5< 5.7

< 4< 6.5

< 4< 5.7

< 12< 4.2

< 5.1< 97

< 5.8< 4.8

< 140< 160

< 76< 5.1

< 5.8< 4.1

< 6.6< 41

< 5.8< 11

< 4< 5

< 94< 5.6

< 4.7< 130

< 160< 74

< 5< 5.6

< 4< 6.5

< 40< 5.6

< 12< 4.2

< 5.1< 97

< 5.8< 4.8

< 140< 160

< 76< 5.1

< 5.8< 4.1

< 6.6< 41

< 5.814

< 4< 5

< 94< 5.6

< 4.7< 130

< 160< 74

< 5< 5.6

< 3.9< 6.4

< 40< 5.6

< 12< 4.2

< 5.2< 98

< 5.8< 4.9

< 140< 160

< 77< 5.2

< 5.8< 4.1

< 6.7< 41

< 5.8< 12

< 4.2< 5.2

< 98< 5.8

< 4.9< 140

< 160< 77

< 5.2< 5.8

< 4.1< 6.7

< 41< 5.8

20< 4.1

< 5< 95

< 5.7< 4.8

< 140< 160

< 75< 5

< 5.7< 4

< 6.5< 40

< 5.7< 11

< 4< 5

< 94< 5.6

< 4.7< 130

< 160< 74

< 5< 5.6

< 4< 6.5

< 4< 5.6

< 12< 4.2

< 5.2< 98

< 5.9< 4.9

< 140< 170

< 78< 5.2

< 5.9< 4.1

< 6.7< 4.2

< 5.9< 11

2319

2200017

< 4.611000

160016000

8.218

360< 6.3

< 3.98.1

< 12< 4.3

< 5.2< 99

< 5.9< 5

< 140< 170

< 78< 5.2

< 5.9< 4.2

< 6.8< 4.2

< 5.9< 12

< 4.3< 5.2

< 99< 5.9

< 5< 140

< 170< 78

< 5.2< 5.9

< 4.2< 6.8

< 4.2< 5.9

< 12< 4.3

< 5.2< 99

< 5.9< 5

< 140< 170

< 78< 5.2

< 5.9< 4.2

< 6.8< 4.2

< 5.9< 11

< 4< 5

< 94< 5.6

< 4.7< 130

< 160< 74

< 5< 5.6

< 3.9< 6.4

< 4< 5.6

< 11< 3.9

< 4.9< 92

< 5.5< 4.6

< 130< 160

< 72< 4.9

< 5.5< 3.8

< 6.3< 39

< 5.5< 11

< 4.1< 5

< 95< 5.7

< 4.8< 140

< 160< 75

< 5< 5.7

< 4< 6.5

< 40< 5.7

< 12< 4.2

< 5.2< 98

< 5.8< 4.9

< 140< 160

< 77< 5.2

< 5.8< 4.1

< 6.7< 41

< 5.8< 11

12< 5

< 95< 5.7

9.5< 140

< 160< 75

< 5< 5.7

< 4< 6.5

< 40< 5.7

< 11< 3.9

< 4.9< 92

< 5.5< 4.6

< 130< 160

< 72< 4.9

< 5.5< 3.8

< 6.3< 39

< 5.5< 11

< 4< 4.9

< 93< 5.6

< 4.6< 130

< 160< 73

< 4.9< 5.6

< 3.9< 6.3

< 39< 5.6

< 12< 4.2

< 5.2< 99

< 5.9< 4.9

< 140< 170

< 78< 5.2

< 5.9< 4.1

< 6.8< 42

< 5.9< 11

< 4< 5

< 94< 5.6

< 4.7< 130

< 160< 74

< 5< 5.6

< 4< 6.5

< 4< 5.6

< 12< 4.4

< 5.5< 100

< 6.2< 5.2

< 150< 180

< 82< 5.5

< 6.2< 4.3

< 7.1< 4.4

< 6.2< 12

< 4.2< 5.2

< 98< 5.9

< 4.9< 140

< 170< 77

< 5.2< 5.9

< 4.1< 6.7

< 4.2< 5.9

< 12< 4.3

< 5.3< 100

< 6< 5

< 140< 170

< 79< 5.3

< 6< 4.2

< 6.8< 42

< 6< 12

< 4.1< 5.1

< 966.2

< 4.8< 140

< 160< 76

< 5.1< 5.8

< 4< 6.6

< 41< 5.8

< 12< 4.4

< 5.4< 100

< 6.1< 5.1

< 140< 170

< 80< 5.4

< 6.1< 4.3

< 7< 43

< 6.112

< 4.2< 5.1

< 97 N,J

< 5.8< 4.8

< 140 N,J

1300 N,J

< 77 N,J

< 5.1< 5.8

< 4.1< 6.6

< 4.1< 5.8

< 11< 4.1

< 5< 95 N

,J< 5.7

< 4.8< 140 N

,J< 160 N

,J< 75 N

,J< 5

< 5.7< 4

< 6.5< 4

< 5.7< 12

< 4.4< 5.4

< 100< 6.1

< 5.1< 140

< 170< 81

< 5.4< 6.1

< 4.3< 7

< 4.3< 6.1

< 12< 4.3

< 5.2< 99

< 5.9< 5

< 140< 170

< 78< 5.2

< 5.9< 4.2

< 6.8< 4.2

< 5.9< 3.6

< 1.8< 3.6

< 1.8< 1.8

< 1.8< 1.8

< 3.6< 1.8

< 1.8< 1.8

< 12< 4.2

< 5.2< 98

< 5.9< 4.9

< 140< 170

< 77< 5.2

< 5.9< 4.1

< 6.7< 4.2

< 5.9< 4.1

< 2< 4.1

< 2< 2

< 2< 2

< 4.1< 2

< 2< 2

< 12< 4.3

< 5.2< 99

< 5.9< 5

< 140< 170

< 78< 5.2

< 5.9< 4.2

< 6.8< 42

< 5.9< 12

< 4.2< 5.2

< 98< 5.8

< 4.9< 140

< 160< 77

< 5.2< 5.8

< 4.1< 6.7

< 41< 5.8

< 20 U< 2 U

< 4 U< 2 U

< 2 U< 2 U

< 2 U< 4 U

< 2 U< 2 U

< 2 U

Page 306: Table Proposed Cleanup Levels Groundwater · 10/21/2013  · Table 04 Summery of PrsllMnery Cost ES11motee for Soleening Feasibility Study Former Kest Property Carson, CA GeotFnlenGOneullanle

Table B-2Sub-Slab Soil Vapor Results

Former Kast Property

Carson, California

Residential Properties Sampled Through August 31, 2013

Page 74 of 235

Sample ID

AddressSam

ple Date

Sample Tim

eLocation

AnalyteU

nitsFrequency of D

etection

M24707SVB

24707 MARBELLA AVE

2012-09-0711:14

BackM

24707SVB24707 M

ARBELLA AVE2013-04-18

09:53Back

M24707SVH

24707 MARBELLA AVE

2013-04-1810:06

HouseM

24707SVF24707 M

ARBELLA AVE2013-04-19

11:34Front

P24708SVH24708 PAN

AMA AVE

2010-06-1709:11

HouseP24708SVG

24708 PANAM

A AVE2010-06-17

10:06G

arageP24708SVG

S24708 PAN

AMA AVE

2010-06-1710:06

Garage

P24708SVB24708 PAN

AMA AVE

2010-06-1711:03

BackP24708SVBD

24708 PANAM

A AVE2010-06-17

11:03Back

P24708SVH24708 PAN

AMA AVE

2012-08-1610:23

HouseP24708SVG

24708 PANAM

A AVE2012-08-16

10:58G

arageP24708SVG

S24708 PAN

AMA AVE

2012-08-1610:58

Garage

P24708SVB24708 PAN

AMA AVE

2012-08-1611:26

BackP24708SVBS

24708 PANAM

A AVE2012-08-16

11:26Back

P24708SVB24708 PAN

AMA AVE

2013-05-1515:09

BackP24708SVH

24708 PANAM

A AVE2013-05-15

15:21House

P24708SVG24708 PAN

AMA AVE

2013-05-1515:38

Garage

N24709SVH

24709 NEPTU

NE AVE

2010-07-0109:18

HouseN

24709SVB24709 N

EPTUN

E AVE2010-07-01

10:09Back

N24709SVG

24709 NEPTU

NE AVE

2010-07-0110:44

Garage

N24709SVG

24709 NEPTU

NE AVE

2012-08-1010:03

Garage

N24709SVG

S24709 N

EPTUN

E AVE2012-08-10

10:03G

arageN

24709SVH24709 N

EPTUN

E AVE2012-08-10

10:16House

N24709SVB

24709 NEPTU

NE AVE

2012-08-1010:43

BackN

24709SVBS24709 N

EPTUN

E AVE2012-08-10

10:43Back

N24709SVH

24709 NEPTU

NE AVE

2013-05-2209:55

HouseN

24709SVB24709 N

EPTUN

E AVE2013-05-22

10:06Back

N24709SVBD

24709 NEPTU

NE AVE

2013-05-2210:06

BackN

24709SVG24709 N

EPTUN

E AVE2013-05-22

10:31G

arageP24709SVH

24709 PANAM

A AVE2009-10-03

11:28House

P24709SVB24709 PAN

AMA AVE

2009-10-0312:20

BackP24709SVF

24709 PANAM

A AVE2009-10-03

13:23Front

P24709SVB24709 PAN

AMA AVE

2011-02-1109:03

BackP24709SVBS

24709 PANAM

A AVE2011-02-11

09:03Back

P24709SVH24709 PAN

AMA AVE

2011-02-1109:51

HouseP24709SVHS

24709 PANAM

A AVE2011-02-11

09:51House

P24709SVF24709 PAN

AMA AVE

2011-02-1110:49

FrontP24709SVF

24709 PANAM

A AVE2012-03-08

15:54Front

P24709SVH24709 PAN

AMA AVE

2012-03-0815:55

HouseP24709SVHD

24709 PANAM

A AVE2012-03-08

15:55House

P24709SVH24709 PAN

AMA AVE

2013-06-2710:24

HouseP24709SVBA

24709 PANAM

A AVE2013-06-27

10:34Back

P24709SVBAD24709 PAN

AMA AVE

2013-06-2710:34

BackP24709SVF

24709 PANAM

A AVE2013-06-27

10:54Front

R24709SVB224709 RAVEN

NA AVE

2010-04-2614:14

BackR24709SVB

24709 RAVENN

A AVE2010-04-26

15:02Back

R24709SVF24709 RAVEN

NA AVE

2010-04-2615:54

FrontR24709SVH

24709 RAVENN

A AVE2010-08-16

09:18House

R24709SVF24709 RAVEN

NA AVE

2010-08-1610:05

FrontR24709SVB2

24709 RAVENN

A AVE2010-08-16

11:16Back

R24709SVB24709 RAVEN

NA AVE

2010-08-1612:33

BackR24709SVF

24709 RAVENN

A AVE2013-03-21

10:06Front

IsopropanolHexane

p/m-Xylene

C6-C8 Aliphatics

1,2,4-Trim

ethyl-benzene

HeptaneC8-C10

AliphaticsC10-C12

AliphaticsC5-C6

AliphaticsEthyl-

benzene

Cumene

(Isopropyl-benzene)

CyclohexaneFreon 11

Methylene

Chloride4-Ethyltoluene

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

4.47%3.74%

3.12%2.72%

2.63%2.63%

2.54%2.01%

2.01%1.97%

1.89%1.89%

1.72%1.72%

1.60%

< 11< 4

< 5< 94

< 5.6< 4.7

< 130< 160

< 74< 5

< 5.6< 3.9

< 6.4< 40

< 5.6< 11

< 4< 5

< 94< 5.6

< 4.7< 130

< 160< 74

< 5< 5.6

< 4< 6.5

< 40< 5.6

< 11< 4

< 5< 94

< 5.6< 4.7

< 130< 160

< 74< 5

< 5.6< 3.9

< 6.4< 40

< 5.6< 12

< 4.3< 5.2

< 99< 5.9

< 5< 140

< 170< 78 PF

< 5.2< 5.9

< 4.2< 6.8

< 42< 5.9

< 12< 4.4

< 5.5< 100 N

,J< 6.2

< 5.2< 150 N

,J< 180 N

,J< 82 N

,J< 5.5

< 6.2< 4.4

< 7.1< 4.4

< 6.2< 12

< 4.3< 5.2

< 99 N,J

< 5.9< 5

< 140 N,J

< 170 N,J

< 78 N,J

< 5.2< 5.9

< 4.2< 6.8

< 4.2< 5.9

< 3.5< 1.8

< 3.5< 1.8

< 1.8< 1.8

< 1.8< 3.5

< 1.8< 1.8

< 1.8< 12

< 4.4< 5.4

< 100 N,J

< 6.1< 5.1

< 140 N,J

< 170 N,J

< 80 N,J

< 5.4< 6.1

< 4.3< 7

< 4.3< 6.1

< 12< 4.3

< 5.3< 100 N

,J< 6

< 5< 140 N

,J< 170 N

,J< 80 N

,J< 5.3

< 6< 4.2

< 6.9< 4.3

< 6< 8.1

< 2.9< 3.6

< 67< 4

< 3.4< 95

< 110< 53

< 3.6< 4

< 2.8< 4.6

< 28< 4

< 7.8< 2.8

< 3.4< 65

< 3.9< 3.2

< 92< 110

< 51< 3.4

< 3.9< 2.7

< 4.4< 27

< 3.9< 20 U

< 2 U< 4 U

< 2 U< 2 U

< 2 U< 2 U

< 4 U< 2 U

< 2 U< 2 U

< 8.1< 2.9

< 3.6< 67

< 4< 3.4

< 95< 110

< 53< 3.6

< 4< 2.8

< 4.6< 28

< 4< 20 U

< 2 U< 4.1 U

< 2 U< 2 U

< 2 U< 2 U

< 4.1 U< 2 U

< 2 U< 2 U

< 11< 4

< 4.9< 92

< 5.5< 4.6

< 130< 160

< 73 PF< 4.9

< 5.5< 3.9

< 6.3< 39

< 5.5< 12

< 4.3< 5.2

< 99< 5.9

< 5< 140

< 170< 78 PF

< 5.2< 5.9

< 4.2< 6.8

< 42< 5.9

< 12< 4.5

< 5.5< 100

< 6.2< 5.2

< 150< 180

< 82 PF< 5.5

< 6.2< 4.4

< 7.1< 44

< 6.2< 11

< 4.15

< 95 N,J

6.6< 4.8

13000 N,J

4800 N,J

< 75 N,J

< 5< 5.7

< 4< 6.5

< 4< 5.7

< 12< 4.4

< 5.4< 100 N

,J< 6.1

< 5.1210 N

,J< 170 N

,J< 80 N

,J< 5.4

< 6.1< 4.2

< 6.9< 4.3

< 6.1< 11

< 4.1< 5

< 95 N,J

< 5.7< 4.8

< 140 N,J

170 N,J

< 75 N,J

< 5< 5.7

< 4< 6.5

< 4< 5.7

< 7.9< 2.8

< 3.5< 66

< 4< 3.3

< 94< 110

< 52< 3.5

< 4< 2.8

< 4.5< 28

< 4< 22 U

< 2.2 U< 4.3 U

< 2.2 U< 2.2 U

< 2.2 U< 2.2 U

< 4.3 U< 2.2 U

< 2.2 U< 2.2 U

< 7.9< 2.8

< 3.5< 66

< 4< 3.3

< 94< 110

< 52< 3.5

< 4< 2.8

< 4.5< 28

< 4< 8.6

< 3.1< 3.8

< 72< 4.3

< 3.6< 100

< 120< 57

< 3.8< 4.3

< 3< 4.9

< 30< 4.3

< 23 U< 2.3 U

< 4.6 U< 2.3 U

< 2.3 U< 2.3 U

< 2.3 U< 4.6 U

< 2.3 U< 2.3 U

< 2.3 U< 11

< 4< 5

< 94< 5.6

< 4.7< 130

< 160< 74 PF

< 5< 5.6

< 4< 6.5

< 40< 5.6

< 12< 4.1

< 5.1< 96

< 5.8< 4.8

< 140< 160

< 76 PF< 5.1

< 5.8< 4

< 6.6< 41

< 5.8< 12

< 4.2< 5.1

< 97< 5.8

< 4.8< 140

< 160< 76 PF

< 5.1< 5.8

< 4.1< 6.6

< 41< 5.8

< 12< 4.1

< 5.1< 96

< 5.8< 4.8

< 140< 160

< 76 PF< 5.1

< 5.8< 4

< 6.6< 41

< 5.8< 11

< 4< 5

< 94 N,J

< 5.6< 4.7

< 130 N,J

1200 N,J

< 74 N,J

< 5< 5.6

< 4< 6.5

< 4< 5.6

< 11< 4.1

< 5< 95 N

,J< 5.7

< 4.8< 140 N

,J< 160 N

,J< 75 N

,J< 5

< 5.7< 4

< 6.5< 4

< 5.7< 10

< 3.6< 4.4

< 84 N,J

< 5< 4.2

< 120 N,J

< 140 N,J

< 66 N,J

< 4.4< 5

< 3.5< 5.8

< 3.6< 5

< 12< 4.2

< 5.2< 98

< 5.8< 4.9

< 140< 160

< 77< 5.2

< 5.8< 4.1

< 6.7< 4.1

< 5.8< 3.6

< 1.8< 3.6

< 1.8< 1.8

< 1.8< 1.8

< 3.6< 1.8

< 1.8< 1.8

< 10< 3.8

< 4.6< 87

< 5.2< 4.4

< 120< 150

< 69< 4.6

< 5.2< 3.7

< 6< 3.7

< 5.2< 3.6

< 1.8< 3.6

< 1.8< 1.8

< 1.8< 1.8

< 3.6< 1.8

< 1.8< 1.8

< 12< 4.2

< 5.2< 98

< 5.8< 4.9

< 140< 160

< 77< 5.2

< 5.8< 4.1

< 6.7< 4.1

< 5.8< 7.6

< 2.7< 3.4

< 64< 3.8

< 3.2< 90

< 110< 50

< 3.4< 3.8

< 2.7< 4.4

< 27< 3.8

13< 2.9

< 3.6< 67

< 4< 3.4

< 95< 110

< 53< 3.6

< 4< 2.8

< 4.6< 28

< 4< 8.1

< 2.9< 3.6

< 67< 4

< 3.4< 95

< 110< 53

< 3.6< 4

< 2.8< 4.6

< 28< 4

< 11< 3.9

< 4.8< 91

< 5.5< 4.6

< 130< 160

< 72< 4.8

< 5.5< 3.8

< 6.3< 39

< 5.5< 13

< 4.5< 5.6

< 100< 6.3

< 5.3< 150

< 180< 83

< 5.6< 6.3

< 4.4< 7.2

< 45< 6.3

< 12< 4.4

< 5.4< 100

< 6.1< 5.1

< 140< 170

< 80< 5.4

< 6.1< 4.3

< 7< 43

< 6.1< 11

< 4< 5

< 94< 5.6

< 4.7< 130

< 160< 74

< 5< 5.6

< 3.9< 6.4

< 40< 5.6

< 12< 4.2

45360 N

,J25

< 4.8730 N

,J700 N

,J< 77 N

,J8.6

15< 4.1

< 6.6< 4.1

22< 12

< 4.2< 5.2

< 99 N,J

< 5.9< 4.9

< 140 N,J

< 170 N,J

< 78 N,J

< 5.2< 5.9

< 4.1< 6.8

< 4.2< 5.9

< 11< 4.1

< 5< 95 N

,J< 5.7

< 4.8< 140 N

,J< 160 N

,J< 75 N

,J< 5

< 5.7< 4

< 6.5< 4

< 5.7< 12

< 4.3< 5.3

< 100 N,J

< 6< 5

< 140 N,J

< 170 N,J

< 79 N,J

< 5.3< 6

< 4.2< 6.8

< 4.2< 6

< 12< 4.4

< 5.5< 100 N

,J< 6.2

< 5.2< 150 N

,J< 180 N

,J< 82 N

,J< 5.5

< 6.2< 4.3

< 7.1< 4.4

< 6.2< 12

< 4.1< 5.1

< 96 N,J

< 5.8< 4.8

< 140 N,J

< 160 N,J

< 76 N,J

< 5.1< 5.8

< 4< 6.6

< 4.1< 5.8

< 11< 4.1

< 5< 95 N

,J< 5.7

< 4.7< 130 N

,J< 160 N

,J< 75 N

,J< 5

< 5.7< 4

< 6.5< 4

< 5.7< 11

< 4.1< 5

< 95< 5.7

< 4.8< 140

< 160< 75

< 5< 5.7

< 4< 6.5

< 40< 5.7

Page 307: Table Proposed Cleanup Levels Groundwater · 10/21/2013  · Table 04 Summery of PrsllMnery Cost ES11motee for Soleening Feasibility Study Former Kest Property Carson, CA GeotFnlenGOneullanle

Table B-2Sub-Slab Soil Vapor Results

Former Kast Property

Carson, California

Residential Properties Sampled Through August 31, 2013

Page 75 of 235

Sample ID

AddressSam

ple Date

Sample Tim

eLocation

AnalyteU

nitsFrequency of D

etection

R24709SVFS24709 RAVEN

NA AVE

2013-03-2110:06

FrontR24709SVB2

24709 RAVENN

A AVE2013-03-21

11:10Back

R24709SVH24709 RAVEN

NA AVE

2013-03-2216:33

HouseR24709SVB

24709 RAVENN

A AVE2013-08-14

14:49Back

R24709SVH24709 RAVEN

NA AVE

2013-08-1414:52

HouseR24709SVF

24709 RAVENN

A AVE2013-08-14

15:20Front

R24709SVB224709 RAVEN

NA AVE

2013-08-1415:28

BackM

24710SVB24710 M

ARBELLA AVE2010-09-14

14:59Back

M24710SVF

24710 MARBELLA AVE

2010-09-1415:40

FrontM

24710SVF24710 M

ARBELLA AVE2011-02-08

13:36Front

M24710SVH

24710 MARBELLA AVE

2011-02-0814:11

HouseM

24710SVB24710 M

ARBELLA AVE2011-02-08

15:14Back

M24710SVF

24710 MARBELLA AVE

2012-05-0315:19

FrontM

24710SVFD24710 M

ARBELLA AVE2012-05-03

15:19Front

M24710SVH

24710 MARBELLA AVE

2012-05-0315:38

HouseM

24710SVB24710 M

ARBELLA AVE2012-05-03

16:03Back

N24712SVF

24712 NEPTU

NE AVE

2010-04-2114:48

FrontN

24712SVB24712 N

EPTUN

E AVE2010-04-21

15:45Back

N24712SVH2

24712 NEPTU

NE AVE

2010-08-1108:58

HouseN

24712SVF24712 N

EPTUN

E AVE2011-02-07

09:16Front

N24712SVH2

24712 NEPTU

NE AVE

2011-02-0710:04

HouseN

24712SVB24712 N

EPTUN

E AVE2011-02-07

10:59Back

N24712SVBS

24712 NEPTU

NE AVE

2011-02-0710:59

BackN

24712SVH224712 N

EPTUN

E AVE2013-01-18

14:55House

N24712SVB

24712 NEPTU

NE AVE

2013-01-1814:57

BackN

24712SVF24712 N

EPTUN

E AVE2013-01-18

15:26Front

N24712SVB

24712 NEPTU

NE AVE

2013-06-1214:48

BackN

24712SVH224712 N

EPTUN

E AVE2013-06-12

15:02House

N24712SVF

24712 NEPTU

NE AVE

2013-06-1215:14

FrontP24712SVH

24712 PANAM

A AVE2010-08-12

14:06House

P24712SVB24712 PAN

AMA AVE

2010-08-1214:54

BackP24712SVF

24712 PANAM

A AVE2010-08-12

15:45Front

P24712SVH24712 PAN

AMA AVE

2011-02-2515:09

HouseP24712SVB

24712 PANAM

A AVE2011-02-25

15:36Back

P24712SVBD24712 PAN

AMA AVE

2011-02-2515:36

BackP24712SVF

24712 PANAM

A AVE2011-02-25

16:00Front

R24712SVF24712 RAVEN

NA AVE

2010-01-0410:51

FrontR24712SVH

24712 RAVENN

A AVE2010-01-04

11:38House

R24712SVB24712 RAVEN

NA AVE

2010-01-0412:30

BackR24712SVB

24712 RAVENN

A AVE2011-06-10

11:35Back

R24712SVBS24712 RAVEN

NA AVE

2011-06-1011:35

BackR24712SVF

24712 RAVENN

A AVE2011-06-10

12:17Front

R24712SVFS24712 RAVEN

NA AVE

2011-06-1012:17

FrontR24712SVH

24712 RAVENN

A AVE2011-06-10

13:00House

R24712SVHS24712 RAVEN

NA AVE

2011-06-1013:00

HouseM

24713SVH24713 M

ARBELLA AVE2011-04-26

14:01House

M24713SVHD

24713 MARBELLA AVE

2011-04-2614:01

HouseM

24713SVF24713 M

ARBELLA AVE2011-04-26

14:47Front

M24713SVFD

24713 MARBELLA AVE

2011-04-2614:47

FrontM

24713SVB24713 M

ARBELLA AVE2011-04-26

15:28Back

M24713SVH

24713 MARBELLA AVE

2013-03-0814:39

HouseM

24713SVB24713 M

ARBELLA AVE2013-03-08

15:03Back

IsopropanolHexane

p/m-Xylene

C6-C8 Aliphatics

1,2,4-Trim

ethyl-benzene

HeptaneC8-C10

AliphaticsC10-C12

AliphaticsC5-C6

AliphaticsEthyl-

benzene

Cumene

(Isopropyl-benzene)

CyclohexaneFreon 11

Methylene

Chloride4-Ethyltoluene

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

4.47%3.74%

3.12%2.72%

2.63%2.63%

2.54%2.01%

2.01%1.97%

1.89%1.89%

1.72%1.72%

1.60%

< 20 U< 2 U

< 4 U< 2 U

< 2 U< 2 U

< 2 U< 4 U

< 2 U< 2 U

< 2 U< 11

< 4< 4.9

< 93< 5.6

4.9< 130

< 160< 73

< 4.9< 5.6

< 3.9< 6.3

< 39< 5.6

< 11< 4.1

< 5< 95

< 5.7< 4.8

< 140< 160

< 75< 5

< 5.7< 4

< 6.5< 40

< 5.7< 12

< 4.4< 5.5

< 100< 6.2

< 5.2< 150

< 180< 82

< 5.5< 6.2

< 4.4< 7.1

< 44< 6.2

< 12< 4.2

< 5.2< 98

< 5.9< 4.9

< 140< 170

< 77< 5.2

< 5.9< 4.1

< 6.7< 42

< 5.9< 12

< 4.2< 5.1

< 97< 5.8

< 4.8< 140

< 160< 76

< 5.1< 5.8

< 4.1< 6.6

< 41< 5.8

< 11< 3.9

< 4.8< 91

< 5.5< 4.6

< 130< 160

< 72< 4.8

< 5.5< 3.8

< 6.3< 39

< 5.5< 12

< 4.2< 5.2

< 98< 5.8

< 4.9< 140

< 160< 77

< 5.2< 5.8

< 4.1< 6.7

< 4.1< 5.8

< 11< 3.9

< 4.8< 90

< 5.4< 4.5

< 130< 150

< 71< 4.8

< 5.4< 3.8

< 6.2< 3.8

< 5.4< 12

< 4.3< 5.2

< 99< 5.9

< 5< 140

< 170< 78

< 5.2< 5.9

< 4.2< 6.8

< 4.2< 5.9

< 11< 4.1

< 5< 95

< 5.7< 4.8

< 140< 160

< 75< 5

< 5.7< 4

< 6.5< 4

< 5.7< 11

< 4< 5

< 94< 5.6

< 4.7< 130

< 160< 74

< 5< 5.6

< 3.9< 6.4

< 4< 5.6

< 7.6< 2.7

< 3.4< 64

< 3.8< 3.2

< 90< 110

< 50< 3.4

< 3.8< 2.7

< 4.4< 27

< 3.8< 7.6

< 2.7< 3.4

< 64< 3.8

< 3.2< 90

< 110< 50

< 3.4< 3.8

< 2.7< 4.4

< 27< 3.8

< 7.8< 2.8

12< 65

6.8< 3.2

< 92< 110

< 51< 3.4

< 3.9< 2.7

< 4.4< 27

6.1< 8.4

< 357

15060

< 3.5< 100

< 120< 55

7.4< 4.2

< 2.9< 4.8

< 3029

< 128.5

88< 99 N

,J120

14< 140 N

,J< 170 N

,J< 78 N

,J58

6.86.4

< 6.8< 4.2

42< 12

< 4.2< 5.2

< 98 N,J

< 5.9< 4.9

< 140 N,J

< 170 N,J

< 77 N,J

< 5.2< 5.9

< 4.1< 6.7

< 4.2< 5.9

< 11< 4

< 5< 94 N

,J< 5.6

< 4.7< 130 N

,J< 160 N

,J< 74 N

,J< 5

< 5.6< 3.9

< 6.4< 4

< 5.6< 11

< 3.9< 4.9

< 92< 5.5

< 4.6< 130

< 160< 72

< 4.9< 5.5

< 3.8< 6.3

< 3.9< 5.5

< 11< 4.1

< 5< 95

< 5.7< 4.8

< 140< 160

< 75< 5

< 5.7< 4

< 6.5< 4

< 5.7< 12

< 4.2< 5.1

< 97< 5.8

< 4.8< 140

< 160< 77

< 5.1< 5.8

< 4.1< 6.6

< 4.1< 5.8

< 3.4< 1.7

< 3.4< 1.7

< 1.7< 1.7

< 1.7< 3.4

< 1.71.8

< 1.7< 11

< 4.1< 5

< 95< 5.7

< 4.8< 140

< 160< 75

< 5< 5.7

< 4< 6.5

< 40< 5.7

< 11< 4.1

< 5< 95

< 5.7< 4.7

< 130< 160

< 75< 5

< 5.7< 4

< 6.5< 40

< 5.7< 12

< 4.4< 5.5

< 100< 6.2

< 5.2< 150

< 180< 82

< 5.5< 6.2

< 4.3< 7.1

< 44< 6.2

< 12< 4.1

< 5.1< 96

< 5.8< 4.8

< 140< 160

< 76< 5.1

< 5.8< 4

< 6.6< 41

< 5.8< 11

< 3.9< 4.9

< 92< 5.5

< 4.6< 130

< 160< 72

< 4.9< 5.5

< 3.8< 6.3

< 39< 5.5

< 12< 4.2

< 5.2< 98

< 5.9< 4.9

< 140< 170

< 78< 5.2

< 5.9< 4.1

< 6.7< 42

< 5.9< 12

< 4.3< 5.2

< 99< 5.9

< 5< 140

< 170< 78

< 5.2< 5.9

< 4.2< 6.8

< 4.2< 5.9

< 11< 4.1

< 5< 95

< 5.7< 4.8

< 140< 160

< 75< 5

< 5.7< 4

< 6.5< 4

< 5.7< 12

< 4.3< 5.2

< 99< 5.9

< 5< 140

< 170< 78

< 5.2< 5.9

< 4.2< 6.8

< 4.2< 5.9

< 12< 4.3

< 5.2< 99

< 5.9< 5

< 140< 170

< 78< 5.2

< 5.9< 4.2

< 6.8< 4.2

< 5.9< 11

< 4< 5

< 93< 5.6

< 4.7< 130

< 160< 74

< 4.9< 5.6

< 3.9< 6.4

< 4< 5.6

< 11< 4

< 5< 93

< 5.6< 4.7

< 130< 160

< 74< 4.9

< 5.6< 3.9

< 6.4< 4

< 5.6< 12

12< 5.1

< 96< 5.8

12< 140

< 160< 76

< 5.1< 5.8

< 4< 6.6

< 4.1< 5.8

< 12< 4.2

< 5.1< 97 N

,J< 5.8

< 4.8< 140 N

,J< 160 N

,J< 77 N

,J< 5.1

< 5.8< 4.1

< 6.6< 4.1

< 5.816

< 3.9< 4.9

< 92 N,J

< 5.5< 4.6

< 130 N,J

< 160 N,J

< 72 N,J

< 4.9< 5.5

< 3.8< 6.3

< 3.9< 5.5

< 12< 4.2

< 5.2< 98 N

,J< 5.9

< 4.9< 140 N

,J< 170 N

,J< 77 N

,J< 5.2

< 5.9< 4.1

< 6.7< 4.2

< 5.9< 12

< 4.4< 5.4

< 100< 6.1

< 5.1< 140

< 170< 80

< 5.4< 6.1

< 4.2< 6.9

50< 6.1

< 3.7 U< 1.8 U

< 3.7 U< 1.8 U

< 1.8 U< 1.8 U

< 1.8 U< 3.7 U

< 1.8 U< 1.8 U

< 1.8 U< 11

< 4< 5

< 94< 5.6

< 4.7< 130

< 160< 74

< 5< 5.6

< 3.9< 6.4

< 4< 5.6

< 3.6 U< 1.8 U

< 3.6 U< 1.8 U

< 1.8 U< 1.8 U

< 1.8 U< 3.6 U

< 1.8 U< 1.8 U

< 1.8 U< 11

< 4< 5

< 94< 5.6

< 4.7< 130

< 160< 74

< 5< 5.6

< 3.9< 6.4

< 4< 5.6

< 3.5 U< 1.7 U

< 3.5 U< 1.7 U

< 1.7 U< 1.7 U

< 1.7 U< 3.5 U

< 1.7 U< 1.7 U

< 1.7 U< 12

< 4.2< 5.2

< 98< 5.8

< 4.9< 140

< 160< 77

< 5.2< 5.8

< 4.1< 6.7

< 4.1< 5.8

< 12< 4.2

< 5.2< 98

< 5.8< 4.9

< 140< 160

< 77< 5.2

< 5.8< 4.1

< 6.7< 4.1

< 5.8< 12

< 4.4< 5.5

< 100< 6.2

< 5.2< 150

< 180< 82

< 5.5< 6.2

< 4.3< 7.1

< 4.4< 6.2

< 13< 4.6

< 5.7< 110

< 6.5< 5.4

< 150< 180

< 85< 5.7

< 6.5< 4.5

< 7.4< 4.6

< 6.5< 12

< 4.2< 5.2

< 98< 5.8

< 4.9< 140

< 160< 77

< 5.2< 5.8

< 4.1< 6.7

6.1< 5.8

< 12< 4.1

< 5.1< 96

< 5.8< 4.8

< 140< 160

< 76< 5.1

< 5.8< 4

< 6.6< 41

< 5.8< 12

< 4.2< 5.2

< 98< 5.8

< 4.9< 140

< 160< 77

< 5.2< 5.8

< 4.1< 6.7

< 41< 5.8

Page 308: Table Proposed Cleanup Levels Groundwater · 10/21/2013  · Table 04 Summery of PrsllMnery Cost ES11motee for Soleening Feasibility Study Former Kest Property Carson, CA GeotFnlenGOneullanle

Table B-2Sub-Slab Soil Vapor Results

Former Kast Property

Carson, California

Residential Properties Sampled Through August 31, 2013

Page 76 of 235

Sample ID

AddressSam

ple Date

Sample Tim

eLocation

AnalyteU

nitsFrequency of D

etection

M24713SVF

24713 MARBELLA AVE

2013-03-0815:08

FrontM

24713SVH24713 M

ARBELLA AVE2013-07-30

14:52House

M24713SVB

24713 MARBELLA AVE

2013-07-3015:06

BackM

24713SVF24713 M

ARBELLA AVE2013-07-30

15:23Front

P24713SVH24713 PAN

AMA AVE

2011-05-1009:26

HouseP24713SVB

24713 PANAM

A AVE2011-05-10

10:08Back

P24713SVG24713 PAN

AMA AVE

2011-05-1010:59

Garage

P24713SVGS

24713 PANAM

A AVE2011-05-10

10:59G

arageP24713SVH

24713 PANAM

A AVE2013-04-05

09:46House

P24713SVB24713 PAN

AMA AVE

2013-04-0510:13

BackP24713SVBD

24713 PANAM

A AVE2013-04-05

10:13Back

P24713SVG24713 PAN

AMA AVE

2013-04-0510:16

Garage

P24713SVGD

24713 PANAM

A AVE2013-04-05

10:16G

arageR24713SVH

24713 RAVENN

A AVE2011-04-06

13:59House

R24713SVG24713 RAVEN

NA AVE

2011-04-0614:43

Garage

R24713SVGD

24713 RAVENN

A AVE2011-04-06

14:43G

arageR24713SVB

24713 RAVENN

A AVE2011-04-06

15:27Back

R24713SVBD24713 RAVEN

NA AVE

2011-04-0615:27

BackR24713SVH

24713 RAVENN

A AVE2013-08-01

14:52House

R24713SVB24713 RAVEN

NA AVE

2013-08-0115:06

BackR24713SVG

24713 RAVENN

A AVE2013-08-01

15:16G

arageN

24715SVB24715 N

EPTUN

E AVE2010-04-26

09:40Back

N24715SVF

24715 NEPTU

NE AVE

2010-04-2610:30

FrontN

24715SVH24715 N

EPTUN

E AVE2010-04-26

11:38House

N24715SVB

24715 NEPTU

NE AVE

2011-02-1815:05

BackN

24715SVH24715 N

EPTUN

E AVE2011-02-18

15:48House

N24715SVF

24715 NEPTU

NE AVE

2011-02-1816:41

FrontN

24715SVH24715 N

EPTUN

E AVE2013-08-07

14:44House

N24715SVB

24715 NEPTU

NE AVE

2013-08-0714:54

BackN

24715SVF24715 N

EPTUN

E AVE2013-08-07

15:38Front

M24716SVG

24716 MARBELLA AVE

2010-07-0214:50

Garage

M24716SVH

24716 MARBELLA AVE

2010-07-0216:23

HouseM

24716SVH24716 M

ARBELLA AVE2011-04-19

14:21House

M24716SVG

24716 MARBELLA AVE

2011-04-1915:03

Garage

M24716SVB

24716 MARBELLA AVE

2011-04-1915:40

BackM

24716SVBD24716 M

ARBELLA AVE2011-04-19

15:40Back

M24716SVB

24716 MARBELLA AVE

2012-05-2409:56

BackM

24716SVBD24716 M

ARBELLA AVE2012-05-24

09:56Back

M24716SVH

24716 MARBELLA AVE

2012-05-2410:29

HouseM

24716SVG24716 M

ARBELLA AVE2012-05-24

10:42G

arageM

24716SVH24716 M

ARBELLA AVE2013-07-25

09:55House

M24716SVB

24716 MARBELLA AVE

2013-07-2510:04

BackM

24716SVBD24716 M

ARBELLA AVE2013-07-25

10:04Back

M24716SVG

24716 MARBELLA AVE

2013-07-2510:25

Garage

R24716SVH24716 RAVEN

NA AVE

2012-03-0111:22

HouseR24716SVHD

24716 RAVENN

A AVE2012-03-01

11:22House

R24716SVG24716 RAVEN

NA AVE

2012-03-0111:32

Garage

R24716SVB24716 RAVEN

NA AVE

2012-03-0112:01

BackM

24717SVH24717 M

ARBELLA AVE2010-07-02

14:52House

M24717SVF

24717 MARBELLA AVE

2010-07-0216:12

FrontM

24717SVB24717 M

ARBELLA AVE2010-07-02

16:51Back

M24717SVH

24717 MARBELLA AVE

2012-07-2609:56

House

IsopropanolHexane

p/m-Xylene

C6-C8 Aliphatics

1,2,4-Trim

ethyl-benzene

HeptaneC8-C10

AliphaticsC10-C12

AliphaticsC5-C6

AliphaticsEthyl-

benzene

Cumene

(Isopropyl-benzene)

CyclohexaneFreon 11

Methylene

Chloride4-Ethyltoluene

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

4.47%3.74%

3.12%2.72%

2.63%2.63%

2.54%2.01%

2.01%1.97%

1.89%1.89%

1.72%1.72%

1.60%

< 11< 3.9

< 4.8< 91

< 5.5< 4.6

< 130< 160

< 72< 4.8

< 5.5< 3.8

< 6.3< 39

< 5.5< 11

< 4< 4.9

< 93< 5.6

< 4.6< 130

< 160< 73

< 4.9< 5.6

< 3.9< 6.4

< 39< 5.6

33< 4.2

< 5.2< 98

< 5.8< 4.9

< 140< 160

< 77< 5.2

< 5.8< 4.1

< 6.7< 41

< 5.8< 11

< 3.9< 4.8

< 91< 5.4

< 4.5< 130

< 150< 72

< 4.8< 5.4

< 3.8< 6.2

< 38< 5.4

< 12< 4.3

< 5.2< 99

< 5.9< 5

< 140< 170

< 78< 5.2

< 5.9< 4.2

< 6.8< 4.2

< 5.9< 11

< 4.112

< 958.2

< 4.8< 140

< 160< 75

< 5< 5.7

< 4< 6.5

< 46.8

< 11< 4

< 5< 94

< 5.6< 4.7

< 130< 160

< 74< 5

< 5.6< 4

< 6.5< 4

< 5.6< 3.3

< 1.7< 3.3

< 1.7< 1.7

< 1.7< 1.7

< 3.3< 1.7

< 1.7< 1.7

< 12< 4.3

< 5.3< 100

< 6< 5

< 140< 170

< 79 PF< 5.3

< 6< 4.2

< 6.8< 42

< 6< 23

< 8.2< 10

< 190< 11

< 9.5< 270

< 320< 150 PF

< 10< 11

< 8< 13

< 80< 11

< 21< 7.4

< 9.2< 170

< 10< 8.6

< 240< 290

< 140 PF< 9.2

< 10< 7.3

< 12< 73

< 10< 12

< 4.2< 5.2

< 98< 5.8

< 4.9< 140

< 160< 77 PF

< 5.2< 5.8

< 4.1< 6.7

< 41< 5.8

< 12< 4.2

< 5.2< 98

< 5.8< 4.9

< 140< 160

< 77 PF< 5.2

< 5.8< 4.1

< 6.7< 41

< 5.8< 11

< 4< 5

< 94< 5.6

< 4.7< 130

< 160< 74

< 5< 5.6

< 3.9< 6.4

< 4< 5.6

< 14< 4.9

< 6< 110

< 6.8< 5.6

< 160< 190

< 89< 6

< 6.8< 4.8

< 7.8< 4.8

< 6.8< 14

< 4.9< 6

< 110< 6.8

< 5.6< 160

< 190< 89

< 6< 6.8

< 4.8< 7.8

< 4.8< 6.8

< 11< 4

< 5< 94

< 5.6< 4.7

< 130< 160

< 74< 5

< 5.6< 3.9

< 6.4< 4

< 5.6< 11

< 4< 5

< 94< 5.6

< 4.7< 130

< 160< 74

< 5< 5.6

< 3.9< 6.4

< 4< 5.6

< 11< 4.1

< 5< 95

< 5.7< 4.8

< 140< 160

< 75< 5

< 5.7< 4

< 6.5< 40

< 5.7< 12

< 4.2< 5.1

< 97< 5.8

< 4.8< 140

< 160< 77

< 5.1< 5.8

< 4.1< 6.6

< 41< 5.8

< 12< 4.2

< 5.2< 98

< 5.9< 4.9

< 140< 170

< 77< 5.2

< 5.9< 4.1

< 6.7< 42

< 5.9< 11

< 4.1< 5

< 95 N,J

< 5.7< 4.8

< 140 N,J

< 160 N,J

< 75 N,J

< 5< 5.7

< 4< 6.5

< 4< 5.7

< 12< 4.2

< 5.1< 97 N

,J< 5.8

< 4.8< 140 N

,J< 160 N

,J< 77 N

,J< 5.1

< 5.8< 4.1

< 6.6< 4.1

< 5.8< 11

< 4.1< 5

< 95 N,J

< 5.7< 4.8

< 140 N,J

< 160 N,J

< 75 N,J

< 5< 5.7

< 4< 6.5

< 4< 5.7

< 12< 4.2

< 5.2< 98

< 5.9< 4.9

< 140< 170

< 78< 5.2

< 5.9< 4.1

< 6.7< 4.2

< 5.9< 14

< 4.9< 6

< 110< 6.8

< 5.6< 160

< 190< 89

< 6< 6.8

< 4.8< 7.8

< 4.8< 6.8

< 12< 4.1

< 5.1< 96

< 5.8< 4.8

< 140< 160

< 76< 5.1

< 5.8< 4

< 6.6< 4.1

< 5.831

< 4.2< 5.2

< 98< 5.9

< 4.9< 140

< 170< 78

< 5.2< 5.9

< 4.1< 6.7

< 42< 5.9

< 12< 4.5

< 5.5< 100

< 6.3< 5.2

< 150< 180

< 82< 5.5

< 6.3< 4.4

< 7.2< 44

< 6.3< 12

< 4.3< 5.3

< 100< 6

< 5< 140

< 170< 80

< 5.3< 6

< 4.2< 6.9

< 43< 6

< 12< 4.3

< 5.2< 99 N

,J< 5.9

< 5< 140 N

,J< 170 N

,J< 78 N

,J< 5.2

< 5.9< 4.2

< 6.8< 4.2

< 5.9< 12

< 4.1< 5.1

< 96 N,J

< 5.8< 4.8

< 140 N,J

< 160 N,J

< 76 N,J

< 5.1< 5.8

< 4< 6.6

< 4.1< 5.8

< 11< 4

< 5< 94

< 5.6< 4.7

< 130< 160

< 74< 5

< 5.6< 4

< 6.5< 4

< 5.6< 14

< 5.1< 6.3

< 120< 7.2

< 6< 170

< 200< 94

< 6.3< 7.2

< 5< 8.2

< 5< 7.2

< 12< 4.3

< 5.3< 100

< 6< 5

< 140< 170

< 79< 5.3

< 6< 4.2

< 6.8< 4.2

< 6< 12

< 4.3< 5.3

< 100< 6

< 5< 140

< 170< 80

< 5.3< 6

< 4.2< 6.9

< 4.3< 6

< 10< 3.7

< 4.6< 86

< 5.2< 4.3

< 120< 150

< 68< 4.6

< 5.2< 3.6

< 5.9< 37

< 5.2< 7.7

< 2.8< 3.4

130< 3.8

< 3.2290 j

< 110< 51

4.9< 3.8

< 2.7< 4.4

< 27< 3.8

< 7.5< 2.7

< 3.3200

< 3.8< 3.1

< 89< 110

< 50< 3.3

< 3.89.8

< 4.3< 26

< 3.8< 7.6

< 2.7< 3.4

< 64< 3.8

< 3.2< 90

< 110< 50

< 3.4< 3.8

< 2.7< 4.4

< 27< 3.8

< 12< 4.4

< 5.5< 100

< 6.2< 5.2

< 150< 180

< 82< 5.5

< 6.2< 4.3

< 7.1< 44

< 6.2< 11

< 4.1< 5

< 95< 5.7

< 4.8< 140

< 160< 75

< 5< 5.7

< 4< 6.5

< 40< 5.7

< 12< 4.3

< 5.2< 99

< 5.9< 5

< 140< 170

< 78< 5.2

< 5.9< 4.2

< 6.8< 42

< 5.9< 11

< 4< 5

< 94< 5.6

< 4.7< 130

< 160< 74

< 5< 5.6

< 3.9< 6.4

< 40< 5.6

< 11< 3.8

< 4.7< 89

< 5.3< 4.4

< 130< 150

< 70< 4.7

< 5.3< 3.7

< 6.1< 38

< 5.3< 10

< 3.7< 4.6

< 87< 5.2

< 4.3< 120

< 150< 69

< 4.6< 5.2

< 3.6< 6

< 37< 5.2

< 9.6< 3.4

< 4.2< 80

< 4.8< 4

< 110< 140

< 63< 4.2

< 4.8< 3.4

< 5.5< 34

< 4.8< 7.9

< 2.8< 3.5

< 66< 4

< 3.3< 94

< 110< 52

< 3.5< 4

< 2.8< 4.5

< 28< 4

< 12< 4.2

6.3< 97 N

,J< 5.8

< 4.8< 140 N

,J< 160 N

,J< 77 N

,J< 5.1

< 5.8< 4.1

< 6.6< 4.1

< 5.8< 12

< 4.1< 5.1

< 96 N,J

< 5.8< 4.8

< 140 N,J

< 160 N,J

< 76 N,J

< 5.1< 5.8

< 4< 6.6

< 4.1< 5.8

< 11< 4.1

< 5< 95 N

,J< 5.7

< 4.8< 140 N

,J< 160 N

,J< 75 N

,J< 5

< 5.7< 4

< 6.54.6

< 5.7< 7.6

< 2.7< 3.4

< 64< 3.8

< 3.2< 90

< 110< 50

< 3.4< 3.8

< 2.7< 4.4

< 27< 3.8

Page 309: Table Proposed Cleanup Levels Groundwater · 10/21/2013  · Table 04 Summery of PrsllMnery Cost ES11motee for Soleening Feasibility Study Former Kest Property Carson, CA GeotFnlenGOneullanle

Table B-2Sub-Slab Soil Vapor Results

Former Kast Property

Carson, California

Residential Properties Sampled Through August 31, 2013

Page 77 of 235

Sample ID

AddressSam

ple Date

Sample Tim

eLocation

AnalyteU

nitsFrequency of D

etection

M24717SVB

24717 MARBELLA AVE

2012-07-2610:08

BackM

24717SVBD24717 M

ARBELLA AVE2012-07-26

10:08Back

M24717SVF

24717 MARBELLA AVE

2012-07-2610:27

FrontM

24717SVH24717 M

ARBELLA AVE2013-05-23

14:49House

M24717SVB

24717 MARBELLA AVE

2013-05-2315:08

BackM

24717SVF24717 M

ARBELLA AVE2013-05-23

15:22Front

N24718SVG

24718 NEPTU

NE AVE

2010-09-0809:57

Garage

N24718SVB

24718 NEPTU

NE AVE

2010-09-0810:47

BackN

24718SVHA24718 N

EPTUN

E AVE2011-02-04

09:36House

N24718SVHB

24718 NEPTU

NE AVE

2012-02-2410:34

BackN

24718SVG24718 N

EPTUN

E AVE2012-02-24

10:58G

arageN

24718SVB24718 N

EPTUN

E AVE2012-02-24

11:25Back

N24718SVBD

24718 NEPTU

NE AVE

2012-02-2411:25

BackP24718SVB2

24718 PANAM

A AVE2010-06-24

09:32Back

P24718SVF24718 PAN

AMA AVE

2010-06-2410:19

FrontP24718SVH

24718 PANAM

A AVE2010-06-24

11:18House

P24718SVB224718 PAN

AMA AVE

2012-10-1810:00

BackP24718SVB2D

24718 PANAM

A AVE2012-10-18

10:00Back

P24718SVH24718 PAN

AMA AVE

2012-10-1810:03

HouseP24718SVF

24718 PANAM

A AVE2012-10-18

10:42Front

P24718SVH24718 PAN

AMA AVE

2013-05-1610:09

HouseP24718SVG

24718 PANAM

A AVE2013-05-16

10:12G

arageP24718SVB2

24718 PANAM

A AVE2013-05-16

10:51Back

P24718SVF24718 PAN

AMA AVE

2013-05-1611:10

FrontN

24719SVB24719 N

EPTUN

E AVE2010-07-16

14:03Back

N24719SVH

24719 NEPTU

NE AVE

2010-07-1614:52

HouseN

24719SVF24719 N

EPTUN

E AVE2010-07-16

15:43Front

N24719SVH

24719 NEPTU

NE AVE

2012-07-1915:00

HouseN

24719SVB24719 N

EPTUN

E AVE2012-07-19

15:32Back

N24719SVBD

24719 NEPTU

NE AVE

2012-07-1915:32

BackP24719SVH

24719 PANAM

A AVE2010-06-28

09:23House

P24719SVF24719 PAN

AMA AVE

2010-06-2811:21

FrontP24719SVBA

24719 PANAM

A AVE2011-03-04

08:51Back

P24719SVH24719 PAN

AMA AVE

2011-03-0409:38

HouseP24719SVHS

24719 PANAM

A AVE2011-03-04

09:38House

P24719SVF24719 PAN

AMA AVE

2011-03-0410:20

FrontP24719SVFS

24719 PANAM

A AVE2011-03-04

10:20Front

P24719SVF24719 PAN

AMA AVE

2012-09-2809:49

FrontP24719SVBA

24719 PANAM

A AVE2012-09-28

10:34Back

R24719SVB24719 RAVEN

NA AVE

2010-04-2112:16

BackR24719SVF

24719 RAVENN

A AVE2010-04-21

12:43Front

R24719 SVB24719 RAVEN

NA AVE

2012-11-2910:07

BackR24719 SVBD

24719 RAVENN

A AVE2012-11-29

10:07Back

R24719 SVH24719 RAVEN

NA AVE

2012-11-2910:11

HouseR24719 SVF

24719 RAVENN

A AVE2012-11-29

10:44Front

M24722SVH

24722 MARBELLA AVE

2010-11-2909:19

HouseM

24722SVF24722 M

ARBELLA AVE2010-11-29

09:55Front

M24722SVFD

24722 MARBELLA AVE

2010-11-2909:55

FrontM

24722SVB24722 M

ARBELLA AVE2010-11-29

11:03Back

M24722SVH

24722 MARBELLA AVE

2012-06-0710:06

HouseM

24722SVF24722 M

ARBELLA AVE2012-06-07

10:10Front

M24722SVFS

24722 MARBELLA AVE

2012-06-0710:10

Front

IsopropanolHexane

p/m-Xylene

C6-C8 Aliphatics

1,2,4-Trim

ethyl-benzene

HeptaneC8-C10

AliphaticsC10-C12

AliphaticsC5-C6

AliphaticsEthyl-

benzene

Cumene

(Isopropyl-benzene)

CyclohexaneFreon 11

Methylene

Chloride4-Ethyltoluene

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

4.47%3.74%

3.12%2.72%

2.63%2.63%

2.54%2.01%

2.01%1.97%

1.89%1.89%

1.72%1.72%

1.60%

< 7.9< 2.8

< 3.5< 66

< 4< 3.3

< 94< 110

< 52< 3.5

< 4< 2.8

< 4.5< 28

< 4< 7.9

< 2.8< 3.5

< 66< 3.9

< 3.3< 93

< 110< 52

< 3.5< 3.9

< 2.8< 4.5

< 28< 3.9

< 13< 4.5

< 5.6< 100

< 6.3< 5.3

< 150< 180

< 83< 5.6

< 6.3< 4.4

< 7.2< 45

< 6.3< 12

5.9< 5.1

< 97< 5.8

< 4.8< 140

< 160< 77 PF

< 5.1< 5.8

< 4.1< 6.6

< 41< 5.8

< 12< 4.3

< 5.3< 100

< 6< 5

< 140< 170

< 80 PF< 5.3

< 6< 4.2

< 6.9< 43

< 6< 11

5.3< 5

< 94< 5.6

< 4.7< 130

< 160< 74 PF

< 5< 5.6

< 3.9< 6.4

< 40< 5.6

< 11< 4.1

< 5< 95

< 5.7< 4.8

< 140< 160

< 75< 5

< 5.7< 4

< 6.5< 4

< 5.7< 12

< 4.2< 5.1

< 97< 5.8

< 4.8< 140

< 160< 77

< 5.1< 5.8

< 4.1< 6.6

< 4.1< 5.8

< 11< 3.9

< 4.8< 90

< 5.4< 4.5

< 130< 150

< 71< 4.8

< 5.4< 3.8

< 6.2< 3.8

< 5.414

< 2.7< 3.3

< 62< 3.7

< 3.1< 88

< 100< 49

< 3.3< 3.7

< 2.6< 4.3

< 26< 3.7

< 7.5< 2.7

< 3.3< 62

< 3.7< 3.1

< 88< 100

< 49< 3.3

< 3.7< 2.6

< 4.339

< 3.7< 8.2

< 3< 3.6

< 69< 4.1

< 3.4< 98

< 120< 54

< 3.6< 4.1

< 2.9< 4.7

< 29< 4.1

< 8.2< 3

< 3.6< 69

< 4.1< 3.4

< 98< 120

< 54< 3.6

< 4.1< 2.9

< 4.7< 29

< 4.1< 12

< 4.2< 5.1

< 97 N,J

< 5.8< 4.8

< 140 N,J

< 160 N,J

< 77 N,J

< 5.1< 5.8

< 4.1< 6.6

< 4.1< 5.8

< 12< 4.2

< 5.1< 97 N

,J< 5.8

< 4.8< 140 N

,J< 160 N

,J< 77 N

,J< 5.1

< 5.8< 4.1

< 6.6< 4.1

< 5.8< 12

< 4.3< 5.2

< 99 N,J

< 5.9< 5

< 140 N,J

< 170 N,J

< 78 N,J

< 5.2< 5.9

< 4.2< 6.8

< 4.2< 5.9

< 11< 4.1

< 5< 95

< 5.7< 4.8

< 140< 160

< 75< 5

< 5.7< 4

< 6.5< 40

< 5.7< 12

< 4.2< 5.2

< 98< 5.8

< 4.9< 140

< 160< 77

< 5.2< 5.8

< 4.1< 6.7

< 41< 5.8

< 11< 3.9

< 4.9< 92

< 5.5< 4.6

< 130< 160

< 72< 4.9

< 5.5< 3.8

< 6.3< 39

< 5.5< 11

< 4.1< 5

< 95< 5.7

< 4.8< 140

< 160< 75

< 5< 5.7

< 4< 6.5

< 40< 5.7

< 12< 4.2

< 5.1< 97

< 5.8< 4.8

< 140< 160

< 77< 5.1

< 5.8< 4.1

< 6.6< 41

< 5.8< 12

< 4.3< 5.2

< 99< 5.9

< 5< 140

< 170< 78

< 5.2< 5.9

< 4.2< 6.8

< 42< 5.9

< 11< 4.1

< 5< 95

< 5.7< 4.8

< 140< 160

< 75< 5

< 5.7< 4

< 6.5< 40

< 5.7< 10

< 3.7< 4.5

< 85< 5.1

< 4.3< 120

< 140< 67

< 4.5< 5.1

< 3.6< 5.8

< 36< 5.1

22< 4.4

< 5.4< 100 N

,J< 6.1

< 5.1< 140 N

,J< 170 N

,J< 80 N

,J< 5.4

< 6.1< 4.3

< 7< 4.3

< 6.1< 11

< 4.1< 5

< 95 N,J

< 5.7< 4.8

< 140 N,J

< 160 N,J

< 75 N,J

< 56.7

< 4< 6.5

< 4< 5.7

87< 4.2

< 5.2< 98 N

,J< 5.8

< 4.9< 140 N

,J< 160 N

,J< 77 N

,J< 5.2

< 5.8< 4.1

< 6.7< 4.1

< 5.8< 7.8

< 2.8< 3.4

< 65< 3.9 PF

< 3.2< 92

< 110< 51

< 3.4< 3.9

< 2.7< 4.4

< 27< 3.9

< 10< 3.8

< 4.7< 88

< 5.3 PF< 4.4

< 120< 150

< 70< 4.7

< 5.3< 3.7

< 6< 37

< 5.3< 7.9

< 2.8< 3.5

< 66< 4 PF

< 3.3< 94

< 110< 52

< 3.5< 4

< 2.8< 4.5

< 28< 4

25< 4.1

< 5< 95 N

,J< 5.7

< 4.81400 N

,J10000 N

,J< 75 N

,J< 5

< 5.7< 4

< 6.5< 4

< 5.7< 11

< 4.1< 5

< 95 N,J

< 5.7< 4.7

< 130 N,J

< 160 N,J

< 75 N,J

< 5< 5.7

< 4< 6.5

< 4< 5.7

< 11< 4.1

< 5< 95

< 5.7< 4.7

< 130< 160

< 75< 5

< 5.7< 4

< 6.5< 4

< 5.7< 11

< 4.1< 5

< 95< 5.7

< 4.7< 130

600< 75

< 5< 5.7

< 4< 6.5

< 4< 5.7

< 3.5< 1.7

< 3.5< 1.7

< 1.7< 1.7

< 1.7< 3.5

< 1.7< 1.7

< 1.7< 11

< 4.1< 5

< 95< 5.7

< 4.8< 140

< 160< 75

< 5< 5.7

< 4< 6.5

< 4< 5.7

< 3.42.4

< 3.4< 1.7

< 1.7< 1.7

< 1.7< 3.4

< 1.7< 1.7

< 1.7< 11

19< 5

< 95< 5.7

11< 140

< 160< 75

< 5< 5.7

< 4< 6.5

< 40< 5.7

< 11< 4.1

< 5< 95

< 5.7< 4.8

< 140< 160

< 75< 5

< 5.7< 4

< 6.5< 40

< 5.7< 12

< 4.2< 5.2

< 98 N,J

< 5.9< 4.9

< 140 N,J

< 170 N,J

< 77 N,J

< 5.2< 5.9

< 4.1< 6.7

< 4.2< 5.9

< 11< 4.1

< 5< 95 N

,J< 5.7

< 4.8< 140 N

,J< 160 N

,J< 75 N

,J< 5

< 5.7< 4

< 6.5< 4

< 5.7< 11

< 4< 5

< 94< 5.6

< 4.7< 130

< 160< 74

< 5< 5.6

< 4< 6.5

< 40< 5.6

< 11< 4

< 5< 94

< 5.6< 4.7

< 130< 160

< 74< 5

< 5.6< 4

< 6.5< 40

< 5.614

< 4< 4.9

< 93< 5.6

< 4.6< 130

< 160< 73

< 4.9< 5.6

< 3.9< 6.3

< 39< 5.6

< 11< 4.1

< 5< 95

< 5.7< 4.8

< 140< 160

< 75< 5

< 5.7< 4

< 6.5< 40

< 5.7< 11

< 4.1< 5

< 95< 5.7

< 4.8< 140

< 160< 75

< 5< 5.7

< 4< 6.5

< 4< 5.7

< 12< 4.3

< 5.2< 99

< 5.9< 5

< 140< 170

< 78< 5.2

< 5.9< 4.2

< 6.8< 4.2

< 5.9< 12

< 4.2< 5.2

< 98< 5.8

< 4.9< 140

< 160< 77

< 5.2< 5.8

< 4.1< 6.7

< 4.1< 5.8

< 13< 4.5

< 5.6< 100

< 6.3< 5.3

< 150< 180

< 84< 5.6

< 6.3< 4.4

< 7.2< 4.5

< 6.3< 7.8

< 2.8< 3.4

< 65< 3.9

< 3.2< 92

< 110< 51

< 3.4< 3.9

< 2.7< 4.4

< 27< 3.9

< 7.6< 2.7

< 3.4< 64

< 3.8< 3.2

< 90< 110

< 50< 3.4

< 3.8< 2.7

< 4.4< 27

< 3.8< 3.5 U

< 1.8 U< 3.5 U

< 1.8 U< 1.8 U

< 1.8 U< 1.8 U

< 3.5 U< 1.8 U

< 1.8 U< 1.8 U

Page 310: Table Proposed Cleanup Levels Groundwater · 10/21/2013  · Table 04 Summery of PrsllMnery Cost ES11motee for Soleening Feasibility Study Former Kest Property Carson, CA GeotFnlenGOneullanle

Table B-2Sub-Slab Soil Vapor Results

Former Kast Property

Carson, California

Residential Properties Sampled Through August 31, 2013

Page 78 of 235

Sample ID

AddressSam

ple Date

Sample Tim

eLocation

AnalyteU

nitsFrequency of D

etection

M24722SVB

24722 MARBELLA AVE

2012-06-0710:49

BackM

24722SVB24722 M

ARBELLA AVE2013-04-11

14:37Back

M24722SVBD

24722 MARBELLA AVE

2013-04-1114:37

BackM

24722SVH24722 M

ARBELLA AVE2013-04-11

15:12House

M24722SVF

24722 MARBELLA AVE

2013-04-1115:15

FrontN

24722SVH24722 N

EPTUN

E AVE2010-07-23

13:35House

N24722SVG

24722 NEPTU

NE AVE

2010-07-2314:07

Garage

N24722SVB

24722 NEPTU

NE AVE

2010-07-2314:42

BackN

24722SVH24722 N

EPTUN

E AVE2012-04-13

15:06House

N24722SVG

24722 NEPTU

NE AVE

2012-04-1315:07

Garage

N24722SVG

D24722 N

EPTUN

E AVE2012-04-13

15:07G

arageN

24722SVB24722 N

EPTUN

E AVE2012-04-13

15:49Back

P24722SVB24722 PAN

AMA AVE

2010-04-2610:23

BackP24722SVF

24722 PANAM

A AVE2010-04-26

11:28Front

P24722SVFD24722 PAN

AMA AVE

2010-04-2611:28

FrontP24722SVH

24722 PANAM

A AVE2010-08-17

13:32House

P24722SVF24722 PAN

AMA AVE

2011-03-0709:27

FrontP24722SVFD

24722 PANAM

A AVE2011-03-07

09:27Front

P24722SVG24722 PAN

AMA AVE

2011-03-0710:06

Garage

P24722SVGD

24722 PANAM

A AVE2011-03-07

10:06G

arageP24722SVB

24722 PANAM

A AVE2011-03-07

10:49Back

P24722SVG24722 PAN

AMA AVE

2012-04-2610:06

Garage

P24722SVF24722 PAN

AMA AVE

2012-04-2610:23

FrontP24722SVFD

24722 PANAM

A AVE2012-04-26

10:23Front

P24722SVB24722 PAN

AMA AVE

2012-04-2610:38

BackR24722SVH

24722 RAVENN

A AVE2010-10-25

09:53House

R24722SVF24722 RAVEN

NA AVE

2010-10-2510:39

FrontR24722SVB

24722 RAVENN

A AVE2010-10-25

11:16Back

R24722SVH24722 RAVEN

NA AVE

2012-11-0915:01

HouseR24722SVB

24722 RAVENN

A AVE2012-11-09

15:15Back

R24722SVF24722 RAVEN

NA AVE

2012-11-0915:39

FrontR24722SVB

24722 RAVENN

A AVE2013-05-02

09:54Back

R24722SVBD24722 RAVEN

NA AVE

2013-05-0209:54

BackR24722SVH

24722 RAVENN

A AVE2013-05-02

10:05House

R24722SVF24722 RAVEN

NA AVE

2013-05-0210:31

FrontM

24723SVB24723 M

ARBELLA AVE2010-03-29

16:23Back

M24723SVH

24723 MARBELLA AVE

2010-04-0712:12

HouseM

24723SVF24723 M

ARBELLA AVE2010-07-21

09:24Front

M24723SVF

24723 MARBELLA AVE

2012-06-2115:14

FrontM

24723SVFD24723 M

ARBELLA AVE2012-06-21

15:14Front

M24723SVH

24723 MARBELLA AVE

2012-06-2115:21

HouseM

24723SVB24723 M

ARBELLA AVE2012-06-21

15:47Back

R24723SVB24723 RAVEN

NA AVE

2010-11-0213:51

BackR24723SVH

24723 RAVENN

A AVE2010-11-02

13:54House

R24723SVF24723 RAVEN

NA AVE

2010-11-0214:27

FrontR24723SVF

24723 RAVENN

A AVE2012-11-08

10:04Front

R24723SVFD24723 RAVEN

NA AVE

2012-11-0810:04

FrontR24723SVH

24723 RAVENN

A AVE2012-11-08

10:23House

R24723SVB24723 RAVEN

NA AVE

2012-11-0810:40

BackR24723SVH

24723 RAVENN

A AVE2013-04-23

10:15House

R24723SVB24723 RAVEN

NA AVE

2013-04-2310:16

BackR24723SVF

24723 RAVENN

A AVE2013-04-23

10:58Front

IsopropanolHexane

p/m-Xylene

C6-C8 Aliphatics

1,2,4-Trim

ethyl-benzene

HeptaneC8-C10

AliphaticsC10-C12

AliphaticsC5-C6

AliphaticsEthyl-

benzene

Cumene

(Isopropyl-benzene)

CyclohexaneFreon 11

Methylene

Chloride4-Ethyltoluene

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

4.47%3.74%

3.12%2.72%

2.63%2.63%

2.54%2.01%

2.01%1.97%

1.89%1.89%

1.72%1.72%

1.60%

< 8.4< 3

< 3.7< 70

< 4.2< 3.5

< 100< 120

< 56< 3.7

< 4.2< 3

< 4.8< 30

< 4.2< 12

< 4.3< 5.2

< 99< 5.9

< 5< 140

< 170< 78 PF

< 5.2< 5.9

< 4.2< 6.8

< 42< 5.9

< 12< 4.3

< 5.2< 99

< 5.9< 5

< 140< 170

< 78 PF< 5.2

< 5.9< 4.2

< 6.8< 42

< 5.9< 11

< 4< 5

< 94< 5.6

< 4.7< 130

< 160< 74 PF

< 5< 5.6

< 3.9< 6.4

< 40< 5.6

< 12< 4.3

< 5.2< 99

< 5.9< 5

< 140< 170

< 78 PF< 5.2

< 5.9< 4.2

< 6.8< 42

< 5.9< 11

< 3.9< 4.9

< 92 N,J

< 5.5< 4.6

< 130 N,J

< 160 N,J

< 72 N,J

< 4.9< 5.5

< 3.8< 6.3

< 3.9< 5.5

< 11< 3.9

< 4.8< 90 N

,J< 5.4

< 4.5< 130 N

,J< 150 N

,J< 71 N

,J< 4.8

< 5.4< 3.8

< 6.2< 3.8

< 5.4< 11

< 4< 5

< 94 N,J

< 5.6< 4.7

< 130 N,J

< 160 N,J

< 74 N,J

< 5< 5.6

< 3.9< 6.4

< 4< 5.6

< 8< 2.9

< 3.5< 67

< 4< 3.3

< 95< 110

< 53< 3.5

< 4< 2.8

< 4.6< 28

< 4< 7.6

< 2.7< 3.4

< 64< 3.8

< 3.2< 90

< 110< 50

< 3.4< 3.8

< 2.7< 4.4

< 27< 3.8

< 7.6< 2.7

< 3.4< 64

< 3.8< 3.2

< 90< 110

< 50< 3.4

< 3.8< 2.7

< 4.4< 27

< 3.820

< 2.4< 2.9

< 55< 3.3

< 2.8< 78

< 94< 44

< 2.9< 3.3

2.5< 3.8

< 23< 3.3

< 125.5

< 5.4< 100 N

,J< 6.1

< 5.1< 140 N

,J< 170 N

,J< 80 N

,J< 5.4

< 6.1< 4.3

< 7< 4.3

< 6.1< 12

< 4.4< 5.4

< 100 N,J

< 6.1< 5.1

< 140 N,J

< 170 N,J

< 80 N,J

< 5.4< 6.1

< 4.3< 7

< 4.3< 6.1

< 12< 4.3

< 5.3< 100 N

,J< 6

< 5< 140 N

,J< 170 N

,J< 80 N

,J< 5.3

< 6< 4.2

< 6.9< 4.3

< 649

< 4.326

< 99 N,J

16 J8.5

< 140 N,J

< 170 N,J

< 78 N,J

6.9< 5.9

< 4.2< 6.8

< 4.213

< 11< 4.1

< 5< 95

< 5.7< 4.7

< 130< 160

< 75< 5

< 5.7< 4

< 6.5< 4

< 5.7< 11

< 4< 5

< 94< 5.6

< 4.7< 130

< 160< 74

< 5< 5.6

< 4< 6.5

< 4< 5.6

< 11< 4

< 5< 93

< 5.6< 4.7

< 130< 160

< 74< 4.9

< 5.6< 3.9

< 6.4< 4

< 5.6< 11

< 4< 5

< 937.5

< 4.7< 130

< 160< 74

< 4.9< 5.6

< 3.9< 6.4

< 4< 5.6

< 11< 4.1

< 5< 95

< 5.7< 4.7

< 130< 160

< 75< 5

< 5.7< 4

< 6.5< 4

< 5.7< 7.8

< 2.8< 3.4

< 65< 3.9

< 3.2< 92

< 110< 51

< 3.4< 3.9

< 2.7< 4.4

< 27< 3.9

< 7.8< 2.8

< 3.4< 65

< 3.9< 3.2

< 92< 110

< 51< 3.4

< 3.9< 2.7

< 4.4< 27

< 3.9< 7.9

< 2.8< 3.5

< 66< 4

< 3.3< 94

< 110< 52

< 3.5< 4

< 2.8< 4.5

< 28< 4

< 7.8< 2.8

< 3.4< 65

< 3.9< 3.2

< 92< 110

< 51< 3.4

< 3.9< 2.7

< 4.4< 27

< 3.9< 12

< 4.1< 5.1

< 96< 5.8

< 4.8< 140

< 160< 76

< 5.1< 5.8

< 4< 6.6

< 4.1< 5.8

< 12< 4.3

< 5.3< 100

< 6< 5

< 140< 170

< 79< 5.3

< 6< 4.2

< 6.8< 4.2

< 6< 12

< 4.4< 5.4

< 100< 6.1

< 5.1< 140

< 170< 81

< 5.4< 6.1

< 4.3< 7

< 4.3< 6.1

< 12< 4.4

< 5.4< 100

< 6.1< 5.1

< 140< 170

< 80< 5.4

< 6.1< 4.3

< 7< 43

< 6.1< 12

< 4.2< 5.2

< 98< 5.9

< 4.9< 140

< 170< 77

< 5.2< 5.9

< 4.111

< 42< 5.9

< 12< 4.3

< 5.2< 99

< 5.9< 5

< 140< 170

< 78< 5.2

< 5.9< 4.2

< 6.8< 42

< 5.9< 11

< 4.1< 5

< 95< 5.7

< 4.8< 140

< 160 PF< 75

< 5< 5.7

< 47.5

< 40< 5.7

< 12< 4.3

< 5.2< 99

< 5.9< 5

< 140< 170 PF

< 78< 5.2

< 5.9< 4.2

7.7< 42

< 5.9< 12

< 4.2< 5.1

< 97< 5.8

< 4.8< 140

< 160 PF< 77

< 5.1< 5.8

< 4.1< 6.6

< 41< 5.8

< 11< 4

< 5< 94

< 5.6< 4.7

< 130< 160 PF

< 74< 5

< 5.6< 4

< 6.5< 40

< 5.6< 12

< 4.5< 5.5

< 100 N,J

< 6.3< 5.2

< 150 N,J

< 180 N,J

< 82 N,J

< 5.5< 6.3

< 4.4< 7.2

< 4.4< 6.3

< 12< 4.1

< 5.1< 96 N

,J< 5.8

< 4.8< 140 N

,J< 160 N

,J< 76 N

,J< 5.1

< 5.8< 4

< 6.6< 4.1

< 5.8< 11

< 4.1< 5

< 95 N,J

< 5.7< 4.8

< 140 N,J

< 160 N,J

< 75 N,J

< 5< 5.7

< 4< 6.5

< 4< 5.7

< 7.9< 2.8

< 3.5< 66

< 4< 3.3

< 94< 110

< 52< 3.5

< 4< 2.8

< 4.5< 28

< 4< 7.9

< 2.8< 3.5

< 66< 4

< 3.3< 94

< 110< 52

< 3.5< 4

< 2.8< 4.5

< 28< 4

< 7.9< 2.8

< 3.5< 66

< 4< 3.3

< 94< 110

< 52< 3.5

< 4< 2.8

< 4.5< 28

< 4< 7.9

< 2.8< 3.5

< 66< 4

< 3.3< 94

< 110< 52

< 3.5< 4

< 2.8< 4.5

< 28< 4

< 12< 4.4

< 5.5< 100

< 6.2< 5.2

< 150< 180

< 82< 5.5

< 6.2< 4.3

< 7.1< 4.4

< 6.2< 12

< 4.2< 5.2

< 98< 5.8

< 4.9< 140

< 160< 77

< 5.2< 5.8

< 4.1< 6.7

< 4.1< 5.8

< 11< 4.1

< 5< 95

< 5.7< 4.8

< 140< 160

< 75< 5

< 5.7< 4

< 6.5< 4

< 5.7< 12

< 4.3< 5.2

< 99< 5.9

< 5< 140

< 170< 78

< 5.2< 5.9

< 4.2< 6.8

< 42< 5.9

< 12< 4.2

< 5.2< 98

< 5.8< 4.9

< 140< 160

< 77< 5.2

< 5.8< 4.1

< 6.7< 41

< 5.8< 12

< 4.2< 5.2

< 98< 5.8

< 4.9< 140

< 160< 77

< 5.2< 5.8

< 4.1< 6.7

< 41< 5.8

< 12< 4.2

< 5.2< 98

< 5.8< 4.9

< 140< 160

< 77< 5.2

< 5.8< 4.1

< 6.7< 41

< 5.8< 11

< 4< 5

< 94< 5.6

< 4.7< 130

< 160< 74 PF

< 5< 5.6

< 3.9< 6.4

< 40< 5.6

< 11< 4

< 5< 94

< 5.6< 4.7

< 130< 160

< 74 PF< 5

< 5.6< 3.9

< 6.4< 40

< 5.6< 12

< 4.4< 5.5

< 100< 6.2

< 5.2< 150

< 180< 82 PF

< 5.5< 6.2

< 4.3< 7.1

< 44< 6.2

Page 311: Table Proposed Cleanup Levels Groundwater · 10/21/2013  · Table 04 Summery of PrsllMnery Cost ES11motee for Soleening Feasibility Study Former Kest Property Carson, CA GeotFnlenGOneullanle

Table B-2Sub-Slab Soil Vapor Results

Former Kast Property

Carson, California

Residential Properties Sampled Through August 31, 2013

Page 79 of 235

Sample ID

AddressSam

ple Date

Sample Tim

eLocation

AnalyteU

nitsFrequency of D

etection

N24725SVB

24725 NEPTU

NE AVE

2009-10-0209:53

BackN

24725SVF24725 N

EPTUN

E AVE2009-10-02

10:54Front

N24725SVH

24725 NEPTU

NE AVE

2010-06-1609:14

HouseN

24725SVB24725 N

EPTUN

E AVE2010-06-16

10:30Back

N24725SVF

24725 NEPTU

NE AVE

2010-06-1611:18

FrontN

24725SVH24725 N

EPTUN

E AVE2012-06-22

14:51House

N24725SVB

24725 NEPTU

NE AVE

2012-06-2215:21

BackN

24725SVBD24725 N

EPTUN

E AVE2012-06-22

15:21Back

N24725SVF

24725 NEPTU

NE AVE

2012-06-2215:27

FrontM

24726SVH24726 M

ARBELLA AVE2010-06-07

09:03House

M24726SVB

24726 MARBELLA AVE

2010-06-0710:06

BackM

24726SVF24726 M

ARBELLA AVE2010-08-19

08:52Front

M24726SVHA

24726 MARBELLA AVE

2012-12-1415:04

HouseM

24726SVG24726 M

ARBELLA AVE2012-12-19

11:07G

arageR24726SVBA

24726 RAVENN

A AVE2011-03-14

10:13Back

R24726SVBAD24726 RAVEN

NA AVE

2011-03-1410:13

BackR24726SVH

24726 RAVENN

A AVE2011-03-14

11:00House

R24726SVH24726 RAVEN

NA AVE

2012-12-2014:58

HouseR24726SVG

24726 RAVENN

A AVE2012-12-20

15:01G

arageR24726SVBA

24726 RAVENN

A AVE2012-12-20

15:33Back

N24728SVG

24728 NEPTU

NE AVE

2010-05-1414:56

Garage

N24728SVH2

24728 NEPTU

NE AVE

2010-05-1415:49

HouseN

24728SVH24728 N

EPTUN

E AVE2010-05-14

16:37House

N24728SVH2

24728 NEPTU

NE AVE

2010-09-2109:25

HouseN

24728SVH24728 N

EPTUN

E AVE2010-09-21

10:07House

N24728SVG

24728 NEPTU

NE AVE

2010-09-2110:46

Garage

N24728SVG

D24728 N

EPTUN

E AVE2010-09-21

10:46G

arageN

24728SVG24728 N

EPTUN

E AVE2013-05-31

09:54G

arageN

24728SVGS

24728 NEPTU

NE AVE

2013-05-3109:54

Garage

N24728SVH

24728 NEPTU

NE AVE

2013-05-3110:23

HouseP24728SVH

24728 PANAM

A AVE2010-11-08

09:17House

P24728SVB24728 PAN

AMA AVE

2010-11-0810:09

BackP24728SVG

24728 PANAM

A AVE2010-11-08

11:20G

arageP24728SVG

S24728 PAN

AMA AVE

2010-11-0811:20

Garage

P24728SVG24728 PAN

AMA AVE

2012-11-0210:05

Garage

P24728SVGD

24728 PANAM

A AVE2012-11-02

10:05G

arageP24728SVB

24728 PANAM

A AVE2012-11-02

10:20Back

P24728SVB24728 PAN

AMA AVE

2013-06-1815:28

BackP24728SVH2

24728 PANAM

A AVE2013-06-18

15:32House

P24728SVG24728 PAN

AMA AVE

2013-06-1816:07

Garage

N24729SVB

24729 NEPTU

NE AVE

2009-09-1809:13

BackN

24729SVF24729 N

EPTUN

E AVE2009-09-18

10:38Front

N24729SVH

24729 NEPTU

NE AVE

2010-07-0809:11

HouseN

24729SVF24729 N

EPTUN

E AVE2010-07-08

09:54Front

N24729SVFD

24729 NEPTU

NE AVE

2010-07-0809:54

FrontN

24729SVB24729 N

EPTUN

E AVE2010-07-08

10:54Back

N24729SVF

24729 NEPTU

NE AVE

2010-08-2413:35

FrontN

24729SVF24729 N

EPTUN

E AVE2012-10-19

14:30Front

N24729SVB

24729 NEPTU

NE AVE

2012-10-1914:56

BackN

24729SVH24729 N

EPTUN

E AVE2012-10-19

15:20House

R24729SVB24729 RAVEN

NA AVE

2010-07-1413:57

BackR24729SVH

24729 RAVENN

A AVE2010-07-14

14:44House

IsopropanolHexane

p/m-Xylene

C6-C8 Aliphatics

1,2,4-Trim

ethyl-benzene

HeptaneC8-C10

AliphaticsC10-C12

AliphaticsC5-C6

AliphaticsEthyl-

benzene

Cumene

(Isopropyl-benzene)

CyclohexaneFreon 11

Methylene

Chloride4-Ethyltoluene

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

4.47%3.74%

3.12%2.72%

2.63%2.63%

2.54%2.01%

2.01%1.97%

1.89%1.89%

1.72%1.72%

1.60%

< 12< 4.3

< 5.2< 99 N

,J< 5.9

< 5< 140 N

,J< 170 N

,J< 78 N

,J< 5.2

< 5.9< 4.2

< 6.8< 4.2

< 5.9< 12

< 4.3< 5.3

< 100 N,J

< 6< 5

< 140 N,J

< 170 N,J

< 80 N,J

< 5.3< 6

< 4.2< 6.9

< 4.3< 6

< 12< 4.3

< 5.3< 100 N

,J< 6

< 5< 140 N

,J< 170 N

,J< 79 N

,J< 5.3

< 6< 4.2

< 6.8< 4.2

< 6< 11

< 4.111

< 95 N,J

7.7< 4.8

< 140 N,J

< 160 N,J

< 75 N,J

< 5< 5.7

< 4< 6.5

< 46.6

< 11< 4.1

< 5< 95 N

,J< 5.7

< 4.8< 140 N

,J< 160 N

,J< 75 N

,J< 5

< 5.7< 4

< 6.5< 4

< 5.7< 8 PF

< 2.9< 3.5

< 67< 4

< 3.3< 95

< 110< 53

< 3.5< 4

< 2.8< 4.6

< 28< 4

< 7.7 PF< 2.8

< 3.4< 64

< 3.8< 3.2

< 91< 110

< 51< 3.4

< 3.8< 2.7

< 4.4< 27

< 3.8< 7.7 PF

< 2.8< 3.4

< 64< 3.8

< 3.2< 91

< 110< 51

< 3.4< 3.8

< 2.7< 4.4

< 27< 3.8

< 7.7 PF< 2.7

< 3.4< 64

< 3.8< 3.2

< 91< 110

< 50< 3.4

< 3.8< 2.7

< 4.4< 27

< 3.8< 11

< 4.1< 5

< 95 N,J

< 5.7< 4.8

< 140 N,J

< 160 N,J

< 75 N,J

< 5< 5.7

< 4< 6.5

< 4< 5.7

< 11< 4

< 5< 94 N

,J< 5.6

< 4.7< 130 N

,J< 160 N

,J< 74 N

,J< 5

< 5.6< 4

< 6.5< 4

< 5.6< 11

< 4< 5

< 93< 5.6

< 4.7< 130

< 160< 74

< 4.9< 5.6

< 3.9< 6.4

< 4< 5.6

< 11< 3.9

< 4.9< 92

< 5.5< 4.6

< 130< 160

< 72< 4.9

< 5.5< 3.8

< 6.3< 39

< 5.5< 22

< 8< 9.8

< 180< 11

< 9.3< 260

< 310< 150

< 9.8< 11

< 7.8< 13

< 78< 11

< 12< 4.2

< 5.2< 98

< 5.8< 4.9

< 140< 160

< 77< 5.2

< 5.8< 4.1

< 6.7< 4.1

< 5.8< 12

< 4.2< 5.2

< 98< 5.8

< 4.9< 140

< 160< 77

< 5.2< 5.8

< 4.1< 6.7

< 4.1< 5.8

< 11< 4.1

< 5< 95

< 5.7< 4.8

< 140< 160

< 75< 5

< 5.7< 4

< 6.5< 4

< 5.7< 11

< 4< 5

< 94< 5.6

< 4.7< 130

< 160< 74

< 5< 5.6

< 3.9< 6.4

< 40< 5.6

20 b< 4.1

< 5< 95

< 5.7< 4.8

< 140< 160

< 75< 5

< 5.7< 4

< 6.5< 40

< 5.7< 11

< 4.1< 5

< 95< 5.7

< 4.8< 140

< 160< 75

< 5< 5.7

< 4< 6.5

< 40< 5.7

< 124.5

< 5.2< 98 N

,J< 5.9

< 4.9< 140 N

,J< 170 N

,J< 77 N

,J< 5.2

< 5.9< 4.1

< 6.7< 4.2

< 5.950

< 4.2< 5.2

< 99 N,J

< 5.9< 4.9

< 140 N,J

< 170 N,J

< 78 N,J

< 5.2< 5.9

< 4.1< 6.8

< 4.2< 5.9

90< 4.1

< 5.1< 96 N

,J< 5.8

< 4.8< 140 N

,J300 N

,J< 76 N

,J< 5.1

< 5.8< 4

< 6.6< 4.1

< 5.8< 11

< 3.89.2

< 887

< 4.4< 120

< 150< 70

< 4.7< 5.3

< 3.7< 6.1

< 3.8< 5.3

< 11< 4.1

< 5< 95

< 5.7< 4.8

< 140< 160

< 75< 5

< 5.7< 4

< 6.5< 4

< 5.7< 11

< 3.9< 4.9

< 92< 5.5

< 4.6< 130

< 160< 72

< 4.9< 5.5

< 3.8< 6.3

< 3.9< 5.5

< 11< 3.9

< 4.9< 92

< 5.5< 4.6

< 130< 160

< 72< 4.9

< 5.5< 3.8

< 6.3< 3.9

< 5.5< 12

< 4.3< 5.3

< 100< 6

< 5< 140

< 170< 80

< 5.3< 6

< 4.2< 6.9

< 43< 6

< 20 U< 2 U

< 4.1 U< 2 U

< 2 U< 2 U

< 2 U< 4.1 U

< 2 U< 2 U

< 2 U< 12

< 4.1< 5.1

< 96< 5.8

< 4.8< 140

< 160< 76

< 5.1< 5.8

< 4< 6.6

< 41< 5.8

< 12< 4.3

< 5.2< 99

< 5.9< 5

< 140< 170

< 78< 5.2

< 5.9< 4.2

< 6.8< 4.2

< 5.9< 12

< 4.2< 5.1

< 97< 5.8

< 4.8< 140

< 160< 77

< 5.1< 5.8

< 4.1< 6.6

< 4.1< 5.8

< 12< 4.3

< 5.2< 99

< 5.9< 5

< 140< 170

< 78< 5.2

< 5.9< 4.2

< 6.8< 4.2

< 5.9< 3.4

< 1.7< 3.4

< 1.7< 1.7

< 1.7< 1.7

< 3.4< 1.7

< 1.7< 1.7

< 13< 4.7

< 5.8< 110

< 6.6< 5.5

< 160< 190

< 87< 5.8

< 6.6< 4.6

< 7.6< 47

< 6.6< 13

< 4.5< 5.6

< 100< 6.3

< 5.3< 150

< 180< 84

< 5.6< 6.3

< 4.4< 7.2

< 45< 6.3

< 12< 4.3

< 5.2< 99

< 5.9< 5

< 140< 170

< 78< 5.2

< 5.9< 4.2

< 6.8< 42

< 5.9< 11

< 3.9< 4.9

< 92< 5.5

< 4.6< 130

< 160< 72 PF

< 4.9< 5.5

< 3.8< 6.3

< 39< 5.5

< 12< 4.2

16< 98

15< 4.9

< 140< 170

< 77 PF< 5.2

< 5.9< 4.1

< 6.7< 42

9.8 EZ< 13

< 4.7< 5.8

< 110< 6.6

< 5.5< 160

< 190< 87 PF

< 5.8< 6.6

< 4.6< 7.5

< 46< 6.6

< 12< 4.2

< 5.2< 98 N

,J< 5.8

< 4.9< 140 N

,J< 160 U

J< 77 N

,J< 5.2

< 5.8< 4.1

< 6.7< 4.1

< 5.8< 13

< 4.6< 5.7

< 110 N,J

< 6.5< 5.4

< 150 N,J

< 180 UJ

< 85 N,J

< 5.7< 6.5

< 4.5< 7.4

< 4.6< 6.5

< 11< 4

< 5< 94 N

,J< 5.6

< 4.7< 130 N

,J< 160 N

,J< 74 N

,J< 5

< 5.6< 3.9

< 6.4< 4

< 5.6< 10

< 3.6< 4.4

< 84 N,J

< 5< 4.2

< 120 N,J

< 140 N,J

< 66 N,J

< 4.4< 5

< 3.5< 5.8

< 3.6< 5

< 10< 3.7

< 4.5< 86 N

,J< 5.1

< 4.3< 120 N

,J< 140 N

,J< 68 N

,J< 4.5

< 5.1< 3.6

< 5.9< 3.6

< 5.1< 12

< 4.2< 5.2

< 98 N,J

< 5.8< 4.9

< 140 N,J

< 160 N,J

< 77 N,J

< 5.2< 5.8

< 4.1< 6.7

< 4.1< 5.8

< 12< 4.3

< 5.3< 100

< 6< 5

< 140< 170

< 79< 5.3

< 6< 4.2

< 6.8< 4.2

< 6< 10

< 3.6< 4.4

< 84< 5

< 4.2< 120

< 140< 66

< 4.4< 5

< 3.5< 5.8

< 36< 5

< 11< 4.1

< 5< 95

< 5.7< 4.8

< 140< 160

< 75< 5

< 5.7< 4

< 6.5< 40

< 5.7< 12

< 4.4< 5.5

< 100< 6.2

< 5.2< 150

< 180< 82

< 5.5< 6.2

< 4.3< 7.1

< 44< 6.2

< 12< 4.4

< 5.5< 100 N

,J< 6.2

< 5.2< 150 N

,J< 180 N

,J< 82 N

,J< 5.5

< 6.2< 4.4

< 7.1< 4.4

< 6.2< 12

< 4.3< 5.2

< 99 N,J

< 5.9< 5

< 140 N,J

< 170 N,J

< 78 N,J

< 5.2< 5.9

< 4.2< 6.8

< 4.2< 5.9

Page 312: Table Proposed Cleanup Levels Groundwater · 10/21/2013  · Table 04 Summery of PrsllMnery Cost ES11motee for Soleening Feasibility Study Former Kest Property Carson, CA GeotFnlenGOneullanle

Table B-2Sub-Slab Soil Vapor Results

Former Kast Property

Carson, California

Residential Properties Sampled Through August 31, 2013

Page 80 of 235

Sample ID

AddressSam

ple Date

Sample Tim

eLocation

AnalyteU

nitsFrequency of D

etection

R24729SVF24729 RAVEN

NA AVE

2010-07-1415:25

FrontR24729SVH

24729 RAVENN

A AVE2012-08-24

14:48House

R24729SVF24729 RAVEN

NA AVE

2012-08-2414:49

FrontR24729SVB

24729 RAVENN

A AVE2012-08-24

15:18Back

R24729SVB24729 RAVEN

NA AVE

2013-06-2015:29

BackR24729SVH

24729 RAVENN

A AVE2013-06-20

15:31House

R24729SVF24729 RAVEN

NA AVE

2013-06-2016:01

FrontM

24732SVF24732 M

ARBELLA AVE2010-07-01

09:40Front

M24732SVB

24732 MARBELLA AVE

2010-07-0110:19

BackM

24732SVH24732 M

ARBELLA AVE2013-01-11

09:47House

M24732SVB

24732 MARBELLA AVE

2013-01-1110:12

BackM

24732SVBD24732 M

ARBELLA AVE2013-01-11

10:12Back

M24732SVF

24732 MARBELLA AVE

2013-01-1110:16

FrontM

24732SVH24732 M

ARBELLA AVE2013-05-23

10:13House

M24732SVB

24732 MARBELLA AVE

2013-05-2310:14

BackM

24732SVBD24732 M

ARBELLA AVE2013-05-23

10:14Back

M24732SVF

24732 MARBELLA AVE

2013-05-2310:36

FrontN

24732SVH24732 N

EPTUN

E AVE2010-09-20

14:13House

N24732SVHD

24732 NEPTU

NE AVE

2010-09-2014:13

HouseN

24732SVB24732 N

EPTUN

E AVE2010-09-20

15:13Back

N24732SVF

24732 NEPTU

NE AVE

2010-09-2016:00

FrontN

24732SVHA24732 N

EPTUN

E AVE2011-02-18

09:09House

N24732SVF

24732 NEPTU

NE AVE

2011-02-1809:52

FrontN

24732SVFS24732 N

EPTUN

E AVE2011-02-18

09:52Front

N24732SVB

24732 NEPTU

NE AVE

2011-02-1810:42

BackN

24732SVBS24732 N

EPTUN

E AVE2011-02-18

10:42Back

N24732SVF

24732 NEPTU

NE AVE

2011-03-1009:56

FrontN

24732SVFS24732 N

EPTUN

E AVE2011-03-10

09:56Front

N24732SVHA

24732 NEPTU

NE AVE

2011-03-1010:38

HouseN

24732SVB24732 N

EPTUN

E AVE2011-03-10

11:13Back

P24732SVF24732 PAN

AMA AVE

2010-04-2215:11

FrontP24732SVB

24732 PANAM

A AVE2010-04-22

17:02Back

P24732SVH24732 PAN

AMA AVE

2010-04-2310:34

HouseP24732SVH

24732 PANAM

A AVE2010-08-31

13:58House

P24732SVB24732 PAN

AMA AVE

2010-08-3114:36

BackP24732SVBD

24732 PANAM

A AVE2010-08-31

14:36Back

P24732SVF24732 PAN

AMA AVE

2010-08-3115:16

FrontP24732SVH

24732 PANAM

A AVE2012-06-14

14:49House

P24732SVF24732 PAN

AMA AVE

2012-06-1415:01

FrontP24732SVFD

24732 PANAM

A AVE2012-06-14

15:01Front

P24732SVB24732 PAN

AMA AVE

2012-06-1415:27

BackR24732SVH

24732 RAVENN

A AVE2010-10-11

09:20House

R24732SVG24732 RAVEN

NA AVE

2010-10-1110:23

Garage

R24732SVGS

24732 RAVENN

A AVE2010-10-11

10:23G

arageR24732SVB

24732 RAVENN

A AVE2010-10-11

11:09Back

R24732SVG24732 RAVEN

NA AVE

2012-06-2210:00

Garage

R24732SVB24732 RAVEN

NA AVE

2012-06-2210:11

BackR24732SVBS

24732 RAVENN

A AVE2012-06-22

10:11Back

R24732SVH24732 RAVEN

NA AVE

2012-06-2210:33

HouseM

24733SVH24733 M

ARBELLA AVE2010-08-06

09:12House

M24733SVG

24733 MARBELLA AVE

2010-08-0609:53

Garage

M24733SVG

D24733 M

ARBELLA AVE2010-08-06

09:53G

arage

IsopropanolHexane

p/m-Xylene

C6-C8 Aliphatics

1,2,4-Trim

ethyl-benzene

HeptaneC8-C10

AliphaticsC10-C12

AliphaticsC5-C6

AliphaticsEthyl-

benzene

Cumene

(Isopropyl-benzene)

CyclohexaneFreon 11

Methylene

Chloride4-Ethyltoluene

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

4.47%3.74%

3.12%2.72%

2.63%2.63%

2.54%2.01%

2.01%1.97%

1.89%1.89%

1.72%1.72%

1.60%

< 12< 4.2

< 5.2< 98 N

,J< 5.9

< 4.9< 140 N

,J< 170 N

,J< 77 N

,J< 5.2

< 5.9< 4.1

< 6.7< 4.2

< 5.913

< 4.1< 5

< 95< 5.7

< 4.7< 130

< 160< 75

< 5< 5.7

< 4< 6.5

< 40< 5.7

< 11< 4

< 5< 94

< 5.6< 4.7

< 130< 160

< 74< 5

< 5.6< 4

< 6.5< 40

< 5.6< 12

< 4.4< 5.5

< 100< 6.2

< 5.2< 150

< 180< 82

< 5.5< 6.2

< 4.3< 7.1

< 44< 6.2

< 13< 4.5

< 5.6< 100

< 6.3< 5.3

< 150< 180

< 83 PF< 5.6

< 6.3< 4.4

< 7.2< 45

< 6.3< 12

< 4.1< 5.1

< 96< 5.8

< 4.8< 140

< 160< 76 PF

< 5.1< 5.8

< 4< 6.6

< 41< 5.8

< 12< 4.4

< 5.4< 100

< 6.1< 5.1

< 140< 170

< 80 PF< 5.4

< 6.1< 4.3

< 7< 43

< 6.1< 12

< 4.3< 5.2

< 99 N,J

< 5.9< 5

< 140 N,J

< 170 N,J

< 78 N,J

< 5.2< 5.9

< 4.2< 6.8

< 4.2< 5.9

< 12< 4.3

< 5.2< 99 N

,J< 5.9

< 5< 140 N

,J< 170 N

,J< 78 N

,J< 5.2

< 5.9< 4.2

< 6.8< 4.2

< 5.9< 12

< 4.1< 5.1

< 96< 5.8

< 4.8< 140

< 160< 76

< 5.1< 5.8

< 4< 6.6

< 41< 5.8

< 12< 4.3

< 5.2< 99

< 5.9< 5

< 140< 170

< 78< 5.2

< 5.9< 4.2

< 6.8< 42

< 5.9< 12

< 4.3< 5.2

< 99< 5.9

< 5< 140

< 170< 78

< 5.2< 5.9

< 4.2< 6.8

< 42< 5.9

< 11< 4

< 5< 93

< 5.6< 4.7

< 130< 160

< 74< 4.9

< 5.6< 3.9

< 6.4< 40

< 5.6< 12

< 4.2< 5.2

< 98< 5.8

< 4.9< 140

< 160< 77 PF

< 5.2< 5.8

< 4.1< 6.7

< 41< 5.8

< 124.7

< 5.1< 97

< 5.8< 4.8

< 140< 160

< 77 PF< 5.1

< 5.8< 4.1

< 6.6< 41

< 5.8< 11

< 4.1< 5

< 95< 5.7

< 4.8< 140

< 160< 75 PF

< 5< 5.7

< 4< 6.5

< 40< 5.7

< 12< 4.2

< 5.2< 98

< 5.8< 4.9

< 140< 160

< 77 PF< 5.2

< 5.8< 4.1

< 6.7< 41

< 5.8< 11

< 3.8< 4.7

550< 5.4

< 4.5280

< 150510

< 4.7< 5.4

14< 6.1

< 3.8< 5.4

< 113.9

< 4.7520

< 5.44.8

230< 150

500< 4.7

< 5.412

< 6.1< 3.8

< 5.4< 11

< 3.9< 4.9

< 92< 5.5

< 4.6250

200< 72

< 4.9< 5.5

< 3.8< 6.3

< 3.9< 5.5

< 32< 11

< 14< 270

< 16< 13

< 380< 450

< 210< 14

< 16< 11

< 18< 11

< 16< 12

< 4.3< 5.2

< 99< 5.9

< 5< 140

< 170< 78

< 5.2< 5.9

< 4.2< 6.8

< 4.2< 5.9

< 12< 4.2

< 5.2< 98

< 5.9< 4.9

< 140< 170

< 78< 5.2

< 5.9< 4.1

< 6.7< 4.2

< 5.9< 3.4

1.8< 3.4

< 1.7< 1.7

< 1.7< 1.7

< 3.4< 1.7

< 1.7< 1.7

< 11< 4.1

< 5< 95

< 5.7< 4.8

< 140< 160

< 75< 5

< 5.7< 4

< 6.5< 4

< 5.7< 3.4

< 1.7< 3.4

< 1.7< 1.7

< 1.7< 1.7

< 3.4< 1.7

< 1.7< 1.7

< 11< 4

< 5< 94

< 5.6< 4.7

< 130< 160

< 74< 5

< 5.6< 3.9

< 6.4< 4

< 5.6< 3.6

< 1.8< 3.6

< 1.8< 1.8

< 1.8< 1.8

< 3.62

< 1.8< 1.8

< 10< 3.6

< 4.4< 84

< 5< 4.2

< 120< 140

< 66< 4.4

< 5< 3.5

< 5.8< 3.6

< 5< 12

< 4.2< 5.2

170< 5.8

< 4.9< 140

< 160< 77

< 5.2< 5.8

< 4.1< 6.7

< 4.1< 5.8

< 11< 4.1

< 5< 95 N

,J< 5.7

< 4.8< 140 N

,J< 160 N

,J< 75 N

,J< 5

< 5.7< 4

< 6.5< 4

< 5.7< 11

< 4.1< 5

< 95 N,J

< 5.7< 4.8

< 140 N,J

< 160 N,J

< 75 N,J

< 5< 5.7

< 4< 6.5

< 4< 5.7

< 11< 3.9

< 4.9< 92 N

,J< 5.5

< 4.6< 130 N

,J< 160 N

,J< 72 N

,J< 4.9

< 5.5< 3.8

< 6.3< 3.9

< 5.5< 11

< 4.1< 5

< 95< 5.7

< 4.8160

< 160< 75

< 5< 5.7

< 4< 6.5

4.3< 5.7

< 12< 4.3

< 5.2< 99

< 5.9< 5

< 140< 170

< 78< 5.2

< 5.9< 4.2

< 6.8< 4.2

< 5.9< 12

< 4.314

< 9929

< 5< 140

< 170< 78

< 5.2< 5.9

< 4.2< 6.8

< 4.219

< 12< 4.4

< 5.4< 100

< 6.1< 5.1

< 140< 170

< 81< 5.4

< 6.1< 4.3

< 77.4

< 6.1< 7.8

< 2.8< 3.4

< 65< 3.9

< 3.2< 92

< 110< 51

< 3.4< 3.9

< 2.7< 4.4

< 27< 3.9

< 7.5< 2.7

< 3.3< 62

< 3.7< 3.1

< 88< 100

< 49< 3.3

< 3.7< 2.6

< 4.3< 26

< 3.7< 7.5

< 2.7< 3.3

< 62< 3.7

< 3.1< 88

< 100< 49

< 3.3< 3.7

< 2.6< 4.3

< 26< 3.7

< 7.6< 2.7

< 3.4< 64

< 3.8< 3.2

< 90< 110

< 50< 3.4

< 3.8< 2.7

< 4.4< 27

< 3.8< 11

< 4< 5

< 94< 5.6

< 4.7< 130

< 160< 74

< 5< 5.6

< 3.9< 6.4

< 4< 5.6

13< 4.1

< 5< 95

< 5.7< 4.8

< 140< 160

< 75< 5

< 5.7< 4

< 6.5< 4

< 5.7< 3.4

< 1.7< 3.4

< 1.7< 1.7

< 1.7< 1.7

< 3.4< 1.7

< 1.7< 1.7

< 11< 4.1

< 5< 95

< 5.7< 4.8

< 140< 160

< 75< 5

< 5.7< 4

< 6.5< 4

< 5.7< 7.9

< 2.8< 3.5

< 66< 4

< 3.3< 94

< 110< 52

< 3.5< 4

< 2.8< 4.5

< 28< 4

< 8.2< 3

< 3.6< 69

< 4.1< 3.4

< 98< 120

< 54< 3.6

< 4.1< 2.9

< 4.7< 29

< 4.1< 18 U

< 1.8 U< 3.6 U

< 1.8 U< 1.8 U

< 1.8 U< 1.8 U

< 3.6 U< 1.8 U

< 1.8 U< 1.8 U

< 7.7< 2.8

< 3.4< 64

< 3.8< 3.2

< 91< 110

< 51< 3.4

< 3.8< 2.7

< 4.4< 27

< 3.8< 12

< 4.3< 5.2

< 99 N,J

< 5.9< 5

< 140 N,J

< 170 N,J

< 78 N,J

< 5.2< 5.9

< 4.2< 6.8

< 4.2< 5.9

< 12< 4.2

< 5.2< 98 N

,J< 5.8

< 4.9< 140 N

,J170 N

,J< 77 N

,J< 5.2

< 5.8< 4.1

< 6.7< 4.1

< 5.8< 12

< 4.2< 5.2

< 98 N,J

< 5.8< 4.9

< 140 N,J

< 160 N,J

< 77 N,J

< 5.2< 5.8

< 4.1< 6.7

< 4.1< 5.8

Page 313: Table Proposed Cleanup Levels Groundwater · 10/21/2013  · Table 04 Summery of PrsllMnery Cost ES11motee for Soleening Feasibility Study Former Kest Property Carson, CA GeotFnlenGOneullanle

Table B-2Sub-Slab Soil Vapor Results

Former Kast Property

Carson, California

Residential Properties Sampled Through August 31, 2013

Page 81 of 235

Sample ID

AddressSam

ple Date

Sample Tim

eLocation

AnalyteU

nitsFrequency of D

etection

M24733SVB

24733 MARBELLA AVE

2010-08-0610:38

BackM

24733SVG24733 M

ARBELLA AVE2012-06-08

14:36G

arageM

24733SVGD

24733 MARBELLA AVE

2012-06-0814:36

Garage

M24733SVB

24733 MARBELLA AVE

2012-06-0815:08

BackM

24733SVB24733 M

ARBELLA AVE2013-04-04

14:39Back

M24733SVHA

24733 MARBELLA AVE

2013-04-0414:47

HouseM

24733SVG24733 M

ARBELLA AVE2013-04-04

15:08G

arageP24733SVH

24733 PANAM

A AVE2011-01-27

09:40House

P24733SVF24733 PAN

AMA AVE

2011-01-2710:20

FrontP24733SVFS

24733 PANAM

A AVE2011-01-27

10:20Front

P24733SVB24733 PAN

AMA AVE

2011-01-2711:04

BackP24733SVB

24733 PANAM

A AVE2013-02-21

09:54Back

P24733SVBS24733 PAN

AMA AVE

2013-02-2109:54

BackP24733SVH

24733 PANAM

A AVE2013-02-21

10:06House

P24733SVF24733 PAN

AMA AVE

2013-02-2110:36

FrontP24733SVH

24733 PANAM

A AVE2013-07-23

09:48House

P24733SVB24733 PAN

AMA AVE

2013-07-2309:51

BackP24733SVBD

24733 PANAM

A AVE2013-07-23

09:51Back

P24733SVF24733 PAN

AMA AVE

2013-07-2310:10

FrontR24733SVH

24733 RAVENN

A AVE2010-04-08

13:49House

R24733SVF24733 RAVEN

NA AVE

2010-04-0814:57

FrontR24733SVB

24733 RAVENN

A AVE2010-04-08

15:49Back

R24733SVH24733 RAVEN

NA AVE

2012-07-2710:03

HouseR24733SVB

24733 RAVENN

A AVE2012-07-27

10:42Back

R24733SVBD24733 RAVEN

NA AVE

2012-07-2710:42

BackR24733SVF

24733 RAVENN

A AVE2012-07-27

10:46Front

N24735SVH

24735 NEPTU

NE AVE

2010-11-1709:23

HouseN

24735SVF24735 N

EPTUN

E AVE2010-11-17

10:19Front

N24735SVB

24735 NEPTU

NE AVE

2010-11-1711:03

BackN

24735SVBD24735 N

EPTUN

E AVE2010-11-17

11:03Back

N24735SVB

24735 NEPTU

NE AVE

2012-11-1510:03

BackN

24735SVBD24735 N

EPTUN

E AVE2012-11-15

10:03Back

N24735SVF

24735 NEPTU

NE AVE

2012-11-1510:45

FrontN

24735SVH24735 N

EPTUN

E AVE2012-11-20

13:43House

N24735SVB

24735 NEPTU

NE AVE

2013-06-1114:49

BackN

24735SVH24735 N

EPTUN

E AVE2013-06-11

15:00House

N24735SVF

24735 NEPTU

NE AVE

2013-06-1115:23

FrontR24736SVH

24736 RAVENN

A AVE2010-04-28

14:11House

R24736SVF24736 RAVEN

NA AVE

2010-04-2815:04

FrontR24736SVFS

24736 RAVENN

A AVE2010-04-28

15:04Front

R24736SVB24736 RAVEN

NA AVE

2010-04-2815:50

BackR24736SVB

24736 RAVENN

A AVE2013-06-04

14:50Back

R24736SVH24736 RAVEN

NA AVE

2013-06-0414:59

HouseR24736SVF

24736 RAVENN

A AVE2013-06-04

15:18Front

M24737SVB

24737 MARBELLA AVE

2010-04-3009:18

BackM

24737SVF24737 M

ARBELLA AVE2010-04-30

10:04Front

M24737SVH

24737 MARBELLA AVE

2010-04-3011:03

HouseM

24737SVH24737 M

ARBELLA AVE2010-09-03

09:56House

M24737SVHS

24737 MARBELLA AVE

2010-09-0309:56

HouseM

24737SVF24737 M

ARBELLA AVE2010-09-03

10:37Front

M24737SVB

24737 MARBELLA AVE

2010-09-0312:02

BackM

24737SVB24737 M

ARBELLA AVE2012-12-07

15:05Back

IsopropanolHexane

p/m-Xylene

C6-C8 Aliphatics

1,2,4-Trim

ethyl-benzene

HeptaneC8-C10

AliphaticsC10-C12

AliphaticsC5-C6

AliphaticsEthyl-

benzene

Cumene

(Isopropyl-benzene)

CyclohexaneFreon 11

Methylene

Chloride4-Ethyltoluene

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

4.47%3.74%

3.12%2.72%

2.63%2.63%

2.54%2.01%

2.01%1.97%

1.89%1.89%

1.72%1.72%

1.60%

< 11< 4.1

< 5< 95 N

,J< 5.7

< 4.8< 140 N

,J< 160 N

,J< 75 N

,J< 5

< 5.7< 4

< 6.5< 4

< 5.7< 7.8

< 2.8< 3.4

< 65< 3.9

< 3.2< 92

< 110< 51

< 3.4< 3.9

< 2.7< 4.4

< 27< 3.9

< 7.8< 2.8

< 3.4< 65

< 3.9< 3.2

< 92< 110

< 51< 3.4

< 3.9< 2.7

< 4.4< 27

< 3.9< 7.9

< 2.8< 3.5

< 66< 4

< 3.3< 94

< 110< 52

< 3.5< 4

< 2.8< 4.5

< 28< 4

< 10< 3.8

< 4.6< 88

< 5.2< 4.4

< 120< 150

< 69 PF< 4.6

< 5.2< 3.7

< 6< 37

< 5.3< 8.6

< 3.1< 3.8

< 72< 4.3

< 3.6< 100

< 120< 57 PF

< 3.8< 4.3

< 3< 4.9

< 30< 4.3

< 9.1< 3.3

< 4< 76

< 4.5< 3.8

< 110< 130

< 60 PF< 4

< 4.5< 3.2

< 5.2< 32

< 4.5< 11

< 4.1< 5

< 95< 5.7

< 4.8< 140

< 160< 75

< 5< 5.7

< 4< 6.5

< 4< 5.7

< 11< 3.9

< 4.9< 92

< 5.5< 4.6

< 130< 160

< 72< 4.9

< 5.5< 3.8

< 6.3< 3.9

< 5.5< 3.5

< 1.7< 3.5

< 1.7< 1.7

< 1.7< 1.7

< 3.5< 1.7

< 1.7< 1.7

< 12< 4.3

< 5.3< 100

< 6< 5

< 140< 170

< 79< 5.3

< 6< 4.2

< 6.8< 4.2

< 6< 11

< 4< 5

< 94< 5.6

< 4.7< 130

< 160< 74

< 5< 5.6

< 3.9< 6.4

< 40< 5.6

< 19 U< 1.9 U

< 3.8 U< 1.9 U

< 1.9 U< 1.9 U

< 1.9 U< 3.8 U

< 1.9 U< 1.9 U

< 1.9 U< 12

< 4.3< 5.2

< 99< 5.9

< 5< 140

< 170< 78

< 5.2< 5.9

< 4.2< 6.8

< 42< 5.9

< 12< 4.3

< 5.2< 99

< 5.9< 5

< 140< 170

< 78< 5.2

< 5.9< 4.2

< 6.8< 42

< 5.9< 12

< 4.3< 5.2

< 99< 5.9

< 5< 140

< 170< 78

< 5.2< 5.9

< 4.2< 6.8

< 42< 5.9

< 12< 4.2

< 5.2< 98

< 5.8< 4.9

< 140< 160

< 77< 5.2

< 5.8< 4.1

< 6.7< 41

< 5.8< 11

< 4.1< 5

< 95< 5.7

< 4.8< 140

< 160< 75

< 5< 5.7

< 4< 6.5

< 40< 5.7

< 11< 4

< 5< 94

< 5.6< 4.7

< 130< 160

< 74< 5

< 5.6< 3.9

< 6.4< 40

< 5.6< 11

< 4< 5

< 94 N,J

< 5.6< 4.7

< 130 N,J

< 160 N,J

< 74 N,J

< 5< 5.6

< 3.9< 6.4

< 4< 5.6

< 11< 4

< 5< 94 N

,J< 5.6

< 4.7< 130 N

,J< 160 N

,J< 74 N

,J< 5

< 5.6< 3.9

< 6.4< 4

< 5.6< 11

< 4.1< 5

< 95 N,J

< 5.7< 4.8

< 140 N,J

< 160 N,J

< 75 N,J

< 5< 5.7

< 4< 6.5

< 4< 5.7

< 7.8< 2.8

< 3.4< 65

< 3.9< 3.2

< 92< 110

< 51< 3.4

< 3.9< 2.7

< 4.4< 27

< 3.9< 7.9

< 2.8< 3.5

< 66< 4

< 3.3< 94

< 110< 52

< 3.5< 4

< 2.8< 4.5

< 28< 4

< 7.9< 2.8

< 3.5< 66

< 4< 3.3

< 94< 110

< 52< 3.5

< 4< 2.8

< 4.5< 28

< 4< 7.6

< 2.7< 3.4

< 64< 3.8

< 3.2< 90

< 110< 50

< 3.4< 3.8

< 2.7< 4.4

< 27< 3.8

16< 4.2

< 5.2< 98

< 5.8< 4.9

< 140< 160

< 77< 5.2

< 5.8< 4.1

< 6.7< 4.1

< 5.8< 11

< 4< 5

< 94< 5.6

< 4.7< 130

< 160< 74

< 5< 5.6

< 3.9< 6.4

< 4< 5.6

< 11< 4.1

< 5< 95

< 5.7< 4.8

< 140< 160

< 75< 5

< 5.7< 4

< 6.5< 4

< 5.7< 11

< 4.1< 5

< 95< 5.7

< 4.8< 140

< 160< 75

< 5< 5.7

< 4< 6.5

< 4< 5.7

< 11< 4.1

< 5< 95

< 5.7< 4.7

< 130< 160

< 75< 5

< 5.7< 4

< 6.5< 40

< 5.7< 11

< 4.1< 5

< 95< 5.7

< 4.7< 130

< 160< 75

< 5< 5.7

< 4< 6.5

< 40< 5.7

< 12< 4.2

< 5.2< 98

< 5.9< 4.9

< 140< 170

< 78< 5.2

< 5.9< 4.1

< 6.7< 42

< 5.9< 12

< 4.3< 5.2

< 99< 5.9

< 5< 140

< 170< 78

< 5.2< 5.9

< 4.2< 6.8

< 42< 5.9

< 12< 4.2

< 5.2< 98

< 5.9< 4.9

< 140< 170

< 77< 5.2

< 5.9< 4.1

< 6.7< 42

< 5.9< 11

< 4< 5

< 94< 5.6

< 4.7< 130

< 160< 74

< 5< 5.6

< 4< 6.5

< 40< 5.6

< 12< 4.2

< 5.2< 98

< 5.9< 4.9

< 140< 170

< 78< 5.2

< 5.9< 4.1

< 6.7< 42

< 5.9< 12

< 4.2< 5.2

< 98 N,J

170< 4.9

820 N,J

880 N,J

< 77 N,J

< 5.2< 5.9

< 4.1< 6.7

< 4.263

< 12< 4.3

< 5.2< 99 N

,J< 5.9

< 5< 140 N

,J< 170 N

,J< 78 N

,J< 5.2

< 5.9< 4.2

< 6.8< 4.2

< 5.9< 3.6

< 1.8< 3.6

< 1.8< 1.8

< 1.8< 1.8

< 3.6< 1.8

< 1.8< 1.8

< 11< 4

< 5< 93 N

,J< 5.6

< 4.7< 130 N

,J< 160 N

,J< 74 N

,J< 4.9

< 5.6< 3.9

< 6.4< 4

< 5.6< 12

< 4.2< 5.1

< 97< 5.8

< 4.8< 140

< 160< 77

< 5.1< 5.8

< 4.1< 6.6

< 41< 5.8

< 11< 4.1

< 5< 95

< 5.7< 4.7

< 130< 160

< 75< 5

< 5.7< 4

< 6.5< 40

< 5.7< 12

< 4.4< 5.5

< 100< 6.2

< 5.2< 150

< 180< 82

< 5.5< 6.2

< 4.3< 7.1

< 44< 6.2

< 12< 4.2

12< 97 N

,J< 5.8

< 4.8< 140 N

,J< 160 N

,J< 77 N

,J< 5.1

< 5.8< 4.1

< 6.6< 4.1

< 5.8< 12

< 4.2< 5.1

< 97 N,J

< 5.8< 4.8

< 140 N,J

< 160 N,J

< 77 N,J

< 5.1< 5.8

< 4.1< 6.6

< 4.1< 5.8

< 11< 4.1

< 5< 95 N

,J< 5.7

< 4.8< 140 N

,J< 160 N

,J< 75 N

,J< 5

< 5.7< 4

< 6.5< 4

< 5.7< 11

< 4< 5

< 94< 5.6

< 4.7< 130

300< 74

< 5< 5.6

< 3.9< 6.4

< 4< 5.6

< 3.4< 1.7

< 3.4< 1.7

< 1.7< 1.7

< 1.7< 3.4

< 1.7< 1.7

< 1.7< 11

< 4.1< 5

< 95< 5.7

< 4.8< 140

< 160< 75

< 5< 5.7

< 4< 6.5

< 4< 5.7

< 24< 8.5

< 10< 200

< 12< 9.8

< 280< 340

< 160< 10

< 12< 8.3

< 14< 8.4

< 12< 12

< 4.3< 5.2

< 99< 5.9

< 5< 140

< 170< 78

< 5.2< 5.9

< 4.2< 6.8

< 42< 5.9

Page 314: Table Proposed Cleanup Levels Groundwater · 10/21/2013  · Table 04 Summery of PrsllMnery Cost ES11motee for Soleening Feasibility Study Former Kest Property Carson, CA GeotFnlenGOneullanle

Table B-2Sub-Slab Soil Vapor Results

Former Kast Property

Carson, California

Residential Properties Sampled Through August 31, 2013

Page 82 of 235

Sample ID

AddressSam

ple Date

Sample Tim

eLocation

AnalyteU

nitsFrequency of D

etection

M24737SVH

24737 MARBELLA AVE

2012-12-0715:12

HouseM

24737SVF24737 M

ARBELLA AVE2012-12-07

15:42Front

M24737SVB

24737 MARBELLA AVE

2013-05-2409:56

BackM

24737SVBD24737 M

ARBELLA AVE2013-05-24

09:56Back

M24737SVH

24737 MARBELLA AVE

2013-05-2409:56

HouseM

24737SVF24737 M

ARBELLA AVE2013-05-24

10:24Front

N24738SVB

24738 NEPTU

NE AVE

2009-09-2309:00

BackN

24738SVF24738 N

EPTUN

E AVE2009-09-23

09:45Front

N24738SVH

24738 NEPTU

NE AVE

2012-02-2310:03

HouseN

24738SVF24738 N

EPTUN

E AVE2012-02-23

10:33Front

N24738SVFD

24738 NEPTU

NE AVE

2012-02-2310:33

FrontN

24738SVF24738 N

EPTUN

E AVE2013-08-28

15:10Front

N24738SVFD

24738 NEPTU

NE AVE

2013-08-2815:10

FrontN

24738SVB24738 N

EPTUN

E AVE2013-08-28

15:44Back

P24738SVH24738 PAN

AMA AVE

2010-09-0713:44

HouseP24738SVHD

24738 PANAM

A AVE2010-09-07

13:44House

P24738SVB24738 PAN

AMA AVE

2010-09-0714:25

BackP24738SVF

24738 PANAM

A AVE2010-09-07

15:03Front

P24738SVH24738 PAN

AMA AVE

2012-09-0714:53

HouseP24738SVF

24738 PANAM

A AVE2012-09-07

15:37Front

P24738SVB24738 PAN

AMA AVE

2012-09-0715:55

BackP24738SVH

24738 PANAM

A AVE2013-06-11

09:41House

P24738SVB24738 PAN

AMA AVE

2013-06-1109:46

BackP24738SVBS

24738 PANAM

A AVE2013-06-11

09:46Back

P24738SVF24738 PAN

AMA AVE

2013-06-1110:19

FrontP24738SVFS

24738 PANAM

A AVE2013-06-11

10:19Front

N24739SVH

24739 NEPTU

NE AVE

2010-10-1209:45

HouseN

24739SVF24739 N

EPTUN

E AVE2010-10-12

11:48Front

N24739SVG

24739 NEPTU

NE AVE

2011-11-1112:08

Garage

N24739SVH

24739 NEPTU

NE AVE

2011-11-1112:45

HouseN

24739SVF24739 N

EPTUN

E AVE2011-11-11

13:30Front

N24739SVFD

24739 NEPTU

NE AVE

2011-11-1113:30

FrontN

24739SVH24739 N

EPTUN

E AVE2012-09-21

10:05House

N24739SVG

24739 NEPTU

NE AVE

2012-09-2110:10

Garage

N24739SVG

S24739 N

EPTUN

E AVE2012-09-21

10:10G

arageN

24739SVG24739 N

EPTUN

E AVE2013-04-30

10:10G

arageN

24739SVGD

24739 NEPTU

NE AVE

2013-04-3010:10

Garage

N24739SVH

24739 NEPTU

NE AVE

2013-04-3010:51

HouseP24739SVH

24739 PANAM

A AVE2011-02-07

13:57House

P24739SVHS24739 PAN

AMA AVE

2011-02-0713:57

HouseP24739SVB

24739 PANAM

A AVE2011-02-07

14:43Back

P24739SVF24739 PAN

AMA AVE

2011-02-0714:43

FrontP24739SVB

24739 PANAM

A AVE2011-02-07

15:15Back

P24739SVB24739 PAN

AMA AVE

2012-10-2610:02

BackP24739SVBD

24739 PANAM

A AVE2012-10-26

10:02Back

P24739SVH24739 PAN

AMA AVE

2012-10-2610:30

HouseP24739SVF

24739 PANAM

A AVE2012-10-26

10:33Front

P24739SVF24739 PAN

AMA AVE

2013-06-1314:50

FrontP24739SVH

24739 PANAM

A AVE2013-06-13

14:59House

P24739SVB24739 PAN

AMA AVE

2013-06-1315:21

BackR24739SVH

24739 RAVENN

A AVE2010-10-13

09:06House

R24739SVB24739 RAVEN

NA AVE

2010-10-1309:42

Back

IsopropanolHexane

p/m-Xylene

C6-C8 Aliphatics

1,2,4-Trim

ethyl-benzene

HeptaneC8-C10

AliphaticsC10-C12

AliphaticsC5-C6

AliphaticsEthyl-

benzene

Cumene

(Isopropyl-benzene)

CyclohexaneFreon 11

Methylene

Chloride4-Ethyltoluene

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

4.47%3.74%

3.12%2.72%

2.63%2.63%

2.54%2.01%

2.01%1.97%

1.89%1.89%

1.72%1.72%

1.60%

< 12< 4.2

< 5.2< 98

< 5.8< 4.9

< 140< 160

< 77< 5.2

< 5.8< 4.1

< 6.7< 41

< 5.8< 11

< 4.1< 5

< 95< 5.7

< 4.8< 140

< 160< 75

< 5< 5.7

< 4< 6.5

< 40< 5.7

< 11< 4

< 5< 94

< 5.6< 4.7

< 130< 160

< 74< 5

< 5.6< 3.9

< 6.4< 40

< 5.6< 11

4.1< 5

< 94< 5.6

< 4.7< 130

< 160< 74

< 5< 5.6

< 4< 6.5

< 40< 5.6

< 11< 4.1

< 5< 95

< 5.7< 4.8

< 140< 160

< 75< 5

< 5.7< 4

< 6.5< 40

< 5.7< 11

< 4.1< 5

< 95< 5.7

< 4.8< 140

< 160< 75

< 5< 5.7

< 4< 6.5

< 40< 5.7

< 11< 4

< 5< 94 N

,J11

< 4.7< 130 N

,J< 160 N

,J,UJ

< 74 N,J

< 5< 5.6

< 4< 6.5

< 4< 5.6

< 12< 4.1

< 5.1< 96 N

,J< 5.8

< 4.8< 140 N

,J< 160 N

,J,UJ

< 76 N,J

< 5.16.5

< 4< 6.6

< 4.1< 5.8

< 10< 3.7

< 4.6< 86

< 5.2< 4.3

< 120< 150

< 68< 4.6

< 5.2< 3.6

< 5.9< 3.6

< 5.2< 11

< 3.96.1

< 91< 5.5

< 4.6< 130

< 16087

< 4.8< 5.5

< 3.8< 6.3

< 3.9< 5.5

< 11< 3.8

< 4.8< 90

< 5.4< 4.5

< 130< 150

100< 4.8

< 5.4< 3.8

< 6.2< 3.8

< 5.4< 12

< 4.4< 5.5

< 100< 6.2

< 5.2< 150

< 180< 82

< 5.5< 6.2

< 4.3< 7.1

< 44< 6.2

< 12< 4.4

< 5.4< 100

< 6.2< 5.1

< 150< 170

< 81< 5.4

< 6.2< 4.3

< 7< 44

< 6.2< 12

< 4.3< 5.2

< 99< 5.9

< 5< 140

< 170< 78

< 5.2< 5.9

< 4.2< 6.8

< 42< 5.9

< 11< 4.1

< 5< 95

< 5.7< 4.8

< 140< 160

< 75< 5

< 5.7< 4

< 6.5< 4

< 5.7< 11

< 4.1< 5

< 95< 5.7

< 4.8< 140

< 160< 75

< 5< 5.7

< 4< 6.5

< 4< 5.7

< 11< 4

< 5< 94

< 5.6< 4.7

< 130< 160

< 74< 5

< 5.6< 3.9

< 6.4< 4

< 5.6< 12

< 4.2< 5.2

< 98< 5.8

< 4.9< 140

< 160< 77

< 5.2< 5.8

< 4.1< 6.7

< 4.1< 5.8

170< 4

< 519000

< 5.6< 4.7

120004500 PE

1400170

4032

< 6.4< 40

< 5.6< 11

4.6< 4.7

180< 5.3

< 4.4290

< 150< 70

< 4.7< 5.3

< 3.7< 6.1

< 38< 5.3

< 12< 4.3

< 5.2< 99

< 5.9< 5

< 140< 170

< 78< 5.2

< 5.9< 4.2

< 6.8< 42

< 5.9< 11

< 4.1< 5

< 95< 5.7

< 4.8< 140

< 160< 75

< 5< 5.7

< 4< 6.5

< 40< 5.7

< 12< 4.2

< 5.2< 98

< 5.9< 4.9

< 140< 170

< 77< 5.2

< 5.9< 4.1

< 6.7< 42

< 5.9< 30 U

< 3 U< 5.9 U

< 3 U< 3 U

< 3 U< 3 U

< 5.9 U< 3 U

< 3 U< 3 U

< 12< 4.2

< 5.2< 98

< 5.9< 4.9

< 140< 170

< 77< 5.2

< 5.9< 4.1

< 6.7< 42

< 5.9< 21 U

< 2.1 U< 4.2 U

< 2.1 U< 2.1 U

< 2.1 U< 2.1 U

< 4.2 U< 2.1 U

< 2.1 U< 2.1 U

< 9.9< 3.6

< 4.4< 83

< 5< 4.1

< 120< 140

< 65< 4.4

< 5< 3.5

< 5.7< 3.5

< 5< 11

< 4.1< 5

< 95< 5.7

< 4.8< 140

< 160< 75

< 5< 5.7

< 4< 6.5

< 4< 5.7

< 7.5< 2.7

< 3.3< 62

< 3.7< 3.1

< 88< 100

< 49< 3.3

< 3.7< 2.6

< 4.3< 2.6

< 3.7< 7.5

< 2.7< 3.3

< 62< 3.7

< 3.1< 88

< 100< 49

< 3.3< 3.7

< 2.6< 4.3

< 2.6< 3.7

< 7.6< 2.7

< 3.4< 64

< 3.8< 3.2

< 90< 110

< 50< 3.4

< 3.8< 2.7

< 4.4< 2.7

< 3.8< 7.6

< 2.723 j

< 6419 j

< 3.2< 90

< 110< 50

4.6< 3.8

< 2.7< 4.4

< 2.711 j

< 12< 4.2

< 5.2< 98

< 5.8< 4.9

< 140< 160

< 77< 5.2

< 5.8< 4.1

< 6.7< 41

< 5.8< 12

< 4.2< 5.2

< 98< 5.8

< 4.9< 140

< 160< 77

< 5.2< 5.8

< 4.1< 6.7

< 41< 5.8

< 19 U< 1.9 U

< 3.7 U< 1.9 U

< 1.9 U< 1.9 U

< 1.9 U< 3.7 U

< 1.9 U4.4

< 1.9 U< 12

< 4.1< 5.1

< 96< 5.8

< 4.8< 140

< 160< 76

< 5.1< 5.8

< 4< 6.6

< 41< 5.8

< 11< 4.1

< 5< 95

< 5.7< 4.8

< 140< 160

< 75< 5

< 5.7< 4

< 6.5< 40

< 5.7< 12

12< 5.2

< 98< 5.9

10< 140

< 170< 78

< 5.2< 5.9

< 4.1< 6.7

< 42< 5.9

< 11< 4.1

< 5< 95

< 5.7< 4.8

< 140< 160

< 75< 5

< 5.7< 4

< 6.5< 4

< 5.7< 3.5

< 1.7< 3.5

< 1.7< 1.7

< 1.7< 1.7

< 3.5< 1.7

< 1.7< 1.7

< 100< 150

< 180< 82

< 11< 4.1

< 5< 95

< 5.7< 4.8

< 140< 160

< 75< 5

< 5.7< 4

< 6.5< 4

< 5.7< 12

< 4.4< 5.5

< 6.2< 5.2

< 5.5< 6.2

< 4.3< 7.1

< 4.4< 6.2

< 11< 4

< 5< 94

< 5.6< 4.7

< 130< 160

< 74< 5

< 5.6< 4

< 6.5< 40

< 5.6< 11

< 3.9< 4.8

< 90< 5.4

< 4.5< 130

< 150< 72

< 4.8< 5.4

< 3.8< 6.2

< 38< 5.4

< 117.6

< 4.8< 90

< 5.47

< 130< 150

74< 4.8

< 5.4< 3.8

< 6.2< 38

< 5.4< 12

< 4.2< 5.2

< 98< 5.9

< 4.9< 140

< 170< 78

< 5.2< 5.9

< 4.1< 6.7

< 42< 5.9

< 12< 4.2

< 5.2< 99

< 5.9< 4.9

< 140< 170

< 78< 5.2

< 5.9< 4.1

< 6.8< 42

< 5.9< 12

< 4.4< 5.5

< 100< 6.2

< 5.2< 150

< 180< 82

< 5.5< 6.2

< 4.3< 7.1

< 44< 6.2

< 12< 4.3

< 5.3< 100

< 6< 5

< 140< 170

< 79< 5.3

< 6< 4.2

< 6.9< 42

< 6< 12

< 4.1< 5.1

< 96< 5.8

< 4.8< 140

< 160< 76

< 5.1< 5.8

< 4< 6.6

< 4.1< 5.8

< 12< 4.2

< 5.1< 97

< 5.8< 4.8

< 140< 160

< 77< 5.1

< 5.8< 4.1

< 6.6< 4.1

< 5.8

Page 315: Table Proposed Cleanup Levels Groundwater · 10/21/2013  · Table 04 Summery of PrsllMnery Cost ES11motee for Soleening Feasibility Study Former Kest Property Carson, CA GeotFnlenGOneullanle

Table B-2Sub-Slab Soil Vapor Results

Former Kast Property

Carson, California

Residential Properties Sampled Through August 31, 2013

Page 83 of 235

Sample ID

AddressSam

ple Date

Sample Tim

eLocation

AnalyteU

nitsFrequency of D

etection

R24739SVF24739 RAVEN

NA AVE

2010-10-1310:14

FrontR24739SVFD

24739 RAVENN

A AVE2010-10-13

10:14Front

R24739SVF24739 RAVEN

NA AVE

2011-03-0309:57

FrontR24739SVH

24739 RAVENN

A AVE2011-03-03

10:35House

R24739SVB24739 RAVEN

NA AVE

2011-03-0311:10

BackR24739SVB D

24739 RAVENN

A AVE2011-03-03

11:10Back

R24739SVB24739 RAVEN

NA AVE

2013-07-0314:39

BackR24739SVH

24739 RAVENN

A AVE2013-07-03

14:54House

R24739SVF24739 RAVEN

NA AVE

2013-07-0315:09

FrontM

24741SVH24741 M

ARBELLA AVE2010-05-28

09:20House

M24741SVB

24741 MARBELLA AVE

2010-05-2810:01

BackM

24741SVF24741 M

ARBELLA AVE2010-05-28

10:37Front

M24741SVF

24741 MARBELLA AVE

2012-06-1509:59

FrontM

24741SVFS24741 M

ARBELLA AVE2012-06-15

09:59Front

M24741SVB

24741 MARBELLA AVE

2012-06-1510:08

BackM

24741SVBS24741 M

ARBELLA AVE2012-06-15

10:08Back

M24741SVHA

24741 MARBELLA AVE

2012-06-2212:08

HouseR24743SVH

24743 RAVENN

A AVE2010-10-25

13:41House

R24743SVG24743 RAVEN

NA AVE

2010-10-2514:14

Garage

R24743SVB24743 RAVEN

NA AVE

2010-10-2514:51

BackR24743SVB

24743 RAVENN

A AVE2013-02-14

15:08Back

R24743SVH24743 RAVEN

NA AVE

2013-02-1415:09

HouseR24743SVG

24743 RAVENN

A AVE2013-02-14

15:43G

arageR24743SVB

24743 RAVENN

A AVE2013-07-10

14:40Back

R24743SVG24743 RAVEN

NA AVE

2013-07-1014:50

Garage

R24743SVH24743 RAVEN

NA AVE

2013-07-1015:32

HouseM

24744SVF24744 M

ARBELLA AVE2010-04-23

15:07Front

M24744SVB

24744 MARBELLA AVE

2010-04-2316:04

BackM

24744SVH24744 M

ARBELLA AVE2010-04-23

17:13House

M24744SVH

24744 MARBELLA AVE

2010-08-0209:39

HouseM

24744SVG24744 M

ARBELLA AVE2010-08-17

08:50G

arageM

24744 SVH24744 M

ARBELLA AVE2011-02-09

09:26House

M24744 SVG

24744 MARBELLA AVE

2011-02-0910:02

Garage

M24744 SVB

24744 MARBELLA AVE

2011-02-0910:52

BackM

24744 SVB D24744 M

ARBELLA AVE2011-02-09

10:52Back

M24744 SVH

24744 MARBELLA AVE

2012-03-1515:26

HouseM

24744 SVG24744 M

ARBELLA AVE2012-03-15

15:30G

arageM

24744 SVB24744 M

ARBELLA AVE2012-03-15

16:11Back

M24744 SVBD

24744 MARBELLA AVE

2012-03-1516:11

BackR24748SVH

24748 RAVENN

A AVE2010-07-15

09:41House

R24748SVF24748 RAVEN

NA AVE

2010-07-1510:32

FrontR24748SVB

24748 RAVENN

A AVE2010-07-15

11:13Back

R24748SVF24748 RAVEN

NA AVE

2012-09-1410:13

FrontR24748SVFS

24748 RAVENN

A AVE2012-09-14

10:13Front

R24748SVB24748 RAVEN

NA AVE

2012-09-1410:33

BackR24748SVH

24748 RAVENN

A AVE2012-09-14

11:03House

R24748SVH24748 RAVEN

NA AVE

2013-04-1609:50

HouseR24748SVF

24748 RAVENN

A AVE2013-04-16

10:02Front

R24748SVF D24748 RAVEN

NA AVE

2013-04-1610:02

FrontR24748SVB

24748 RAVENN

A AVE2013-04-16

10:22Back

R24749SVH24749 RAVEN

NA AVE

2010-09-1009:09

HouseR24749SVB

24749 RAVENN

A AVE2010-09-10

09:45Back

IsopropanolHexane

p/m-Xylene

C6-C8 Aliphatics

1,2,4-Trim

ethyl-benzene

HeptaneC8-C10

AliphaticsC10-C12

AliphaticsC5-C6

AliphaticsEthyl-

benzene

Cumene

(Isopropyl-benzene)

CyclohexaneFreon 11

Methylene

Chloride4-Ethyltoluene

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

4.47%3.74%

3.12%2.72%

2.63%2.63%

2.54%2.01%

2.01%1.97%

1.89%1.89%

1.72%1.72%

1.60%

< 11< 4.1

< 5< 95

< 5.7< 4.8

< 140< 160

< 75< 5

< 5.7< 4

< 6.5< 4

< 5.7< 11

< 4.1< 5

< 95< 5.7

< 4.8< 140

< 160< 75

< 5< 5.7

< 4< 6.5

< 4< 5.7

< 12< 4.2

< 5.2< 98

< 5.8< 4.9

< 140< 160

< 77< 5.2

< 5.8< 4.1

< 6.7< 4.1

< 5.8< 11

< 4.1< 5

< 9540

< 4.8< 140

< 160< 75

< 5< 5.7

< 4< 6.5

< 4< 5.7

< 11< 4.1

< 5< 95

< 5.7< 4.8

< 140< 160

< 75< 5

< 5.7< 4

< 6.5< 4

< 5.7< 11

< 4.1< 5

< 95< 5.7

< 4.8< 140

< 160< 75

< 5< 5.7

< 4< 6.5

< 4< 5.7

< 12< 4.2

< 5.2< 98

< 5.9< 4.9

< 140< 170

< 78< 5.2

< 5.9< 4.1

< 6.7< 42

< 5.9< 12

< 4.4< 5.4

< 100< 6.1

< 5.1< 140

< 170< 81

< 5.4< 6.1

< 4.3< 7

< 43< 6.1

< 12< 4.3

< 5.3< 100

< 6< 5

< 140< 170

< 79< 5.3

< 6< 4.2

< 6.9< 42

< 620

< 4.1< 5

240 N,J

< 5.7< 4.8

< 140 N,J

< 160 N,J

< 75 N,J

< 5< 5.7

< 4< 6.5

< 4< 5.7

< 12< 4.2

< 5.2< 99 N

,J< 5.9

< 4.9< 140 N

,J< 170 N

,J< 78 N

,J< 5.2

< 5.9< 4.1

< 6.8< 4.2

< 5.9< 12

< 4.3< 5.2

< 99 N,J

< 5.9< 5

< 140 N,J

< 170 N,J

< 78 N,J

< 5.2< 5.9

< 4.2< 6.8

< 4.2< 5.9

< 7.4< 2.7

< 3.3< 62

< 3.7< 3.1

< 88< 100

< 49< 3.3

< 3.7< 2.6

< 4.2< 26

< 3.7< 3.3 U

< 1.7 U< 3.3 U

< 1.7 U< 1.7 U

< 1.7 U< 1.7 U

< 3.3 U1.9

< 1.7 U< 1.7 U

< 7.6< 2.7

< 3.4< 64

< 3.8< 3.2

< 90< 110

< 50< 3.4

< 3.8< 2.7

< 4.4< 27

< 3.8< 3.4 U

< 1.7 U< 3.4 U

< 1.7 U< 1.7 U

< 1.7 U< 1.7 U

< 3.4 U1.7

< 1.7 U< 1.7 U

< 7.5< 2.7

< 3.3< 62

< 3.7< 3.1

< 88< 100

< 49< 3.3

< 3.7< 2.6

5< 26

< 3.7< 12

< 4.2< 5.2

< 98< 5.9

< 4.9< 140

< 170< 78

< 5.2< 5.9

< 4.1< 6.7

< 4.2< 5.9

< 11< 4

< 4.9< 93

< 5.6< 4.6

< 130< 160

< 73< 4.9

< 5.6< 3.9

< 6.3< 3.9

< 5.6< 11

< 4< 5

< 94< 5.6

< 4.7< 130

< 160< 74

< 5< 5.6

< 4< 6.5

< 4< 5.6

< 115

< 5< 95

< 5.7< 4.8

< 140< 160

< 75< 5

< 5.7< 4

< 6.5< 40

< 5.7< 12

< 4.3< 5.2

< 99< 5.9

< 5< 140

< 170< 78

< 5.2< 5.9

< 4.2< 6.8

< 42< 5.9

< 11< 4.1

< 5< 95

< 5.7< 4.8

< 140< 160

< 75< 5

< 5.7< 4

< 6.5< 40

< 5.7< 12

< 4.2< 5.1

< 97< 5.8

< 4.8< 140

< 160< 76

< 5.1< 5.8

< 4.1< 6.6

< 41< 5.8

< 12< 4.3

< 5.2< 99

< 5.9< 5

< 140< 170

< 78< 5.2

< 5.9< 4.2

< 6.8< 42

< 5.9< 12

< 4.4< 5.4

< 100< 6.1

< 5.1< 140

< 170< 81

< 5.4< 6.1

< 4.3< 7

< 43< 6.1

< 11< 4

< 5< 94 N

,J< 5.6

< 4.7< 130 N

,J< 160 N

,J< 74 N

,J< 5

< 5.6< 3.9

< 6.4< 4

< 5.6< 12

< 4.3< 5.2

< 99 N,J

< 5.9< 5

< 140 N,J

< 170 N,J

< 78 N,J

< 5.2< 5.9

< 4.2< 6.8

< 4.2< 5.9

12< 4

< 5< 94 N

,J< 5.6

< 4.7< 130 N

,J< 160 N

,J< 74 N

,J< 5

< 5.6< 3.9

< 6.4< 4

< 5.6< 11

< 4.1< 5

< 95 N,J

< 5.7< 4.8

< 140 N,J

< 160 N,J

< 75 N,J

< 5< 5.7

< 4< 6.5

< 4< 5.7

< 11< 4.1

< 5< 95 N

,J< 5.7

< 4.8< 140 N

,J< 160 N

,J< 75 N

,J< 5

< 5.7< 4

< 6.5< 4

< 5.7< 12

< 4.2< 5.2

< 98< 5.9

< 4.9< 140

< 170< 77

< 5.2< 5.9

< 4.1< 6.7

< 4.2< 5.9

< 11< 4

< 4.9< 93

< 5.6< 4.6

< 130< 160

< 73< 4.9

< 5.6< 3.9

< 6.3< 3.9

< 5.6< 11

< 4< 5

< 93< 5.6

< 4.7< 130

< 160< 74

< 4.9< 5.6

< 3.9< 6.4

< 4< 5.6

< 11< 4

< 5< 93

< 5.6< 4.7

< 130< 160

< 74< 4.9

< 5.6< 3.9

< 6.4< 4

< 5.6< 18

< 6.6< 8.2

< 150< 9.2

< 7.7< 220

< 260< 120

< 8.2< 9.2

< 6.5< 10

< 65< 9.2

< 7.8< 2.8

< 3.4< 65

< 3.9< 3.2

< 92< 110

< 51< 3.4

< 3.9< 2.7

< 4.4< 27

< 3.9< 8.2

< 3< 3.6

< 69< 4.1

< 3.4< 98

< 120< 54

< 3.6< 4.1

< 2.9< 4.7

< 29< 4.1

< 8.24.3

< 3.6< 69

< 4.1< 3.4

< 98< 120

< 54< 3.6

< 4.1< 2.9

< 4.7< 29

< 4.1< 12

< 4.2< 5.2

< 99 N,J

< 5.9< 4.9

< 140 N,J

< 170 N,J

< 78 N,J

< 5.26.6

< 4.1< 6.8

< 4.2< 5.9

< 12< 4.1

< 5.1< 96 N

,J< 5.8

< 4.8< 140 N

,J< 160 N

,J< 76 N

,J< 5.1

< 5.8< 4

< 6.6< 4.1

< 5.8< 12

< 4.3< 5.2

< 99 N,J

< 5.9< 5

< 140 N,J

< 170 N,J

< 78 N,J

< 5.2< 5.9

< 4.2< 6.8

< 4.2< 5.9

< 12< 4.4

< 5.4< 100

< 6.1< 5.1

< 140< 170

< 80< 5.4

< 6.1< 4.2

< 6.9< 43

< 6.1< 21 U

< 2.1 U< 4.2 U

< 2.1 U< 2.1 U

< 2.1 U< 2.1 U

< 4.2 U< 2.1 U

< 2.1 U< 2.1 U

< 14< 4.9

< 6< 110

< 6.8< 5.6

< 160< 190

< 89< 6

< 6.8< 4.8

< 7.8< 48

< 6.8< 12

< 4.3< 5.2

< 99< 5.9

< 5< 140

< 170< 78

< 5.2< 5.9

< 4.2< 6.8

< 42< 5.9

< 11< 4

< 5< 94

< 5.6< 4.7

< 130< 160

< 74 PF< 5

< 5.6< 3.9

< 6.4< 40

< 5.6< 12

< 4.3< 5.3

< 100< 6

< 5< 140

< 170< 79 PF

< 5.3< 6

< 4.2< 6.9

< 42< 6

< 12< 4.2

< 5.2< 98

< 5.9< 4.9

< 140< 170

< 78 PF< 5.2

< 5.9< 4.1

< 6.7< 42

< 5.9< 10

< 3.7< 4.6

< 87< 5.2

< 4.3< 120

< 150< 69 PF

< 4.6< 5.2

< 3.6< 6

< 37< 5.2

< 11< 4

< 5< 94

< 5.6< 4.7

< 130< 160

< 74< 5

< 5.6< 3.9

< 6.4< 4

< 5.6< 12

< 4.3< 5.2

100< 5.9

6.5< 140

< 170< 78

< 5.2< 5.9

< 4.2< 6.8

< 4.2< 5.9

Page 316: Table Proposed Cleanup Levels Groundwater · 10/21/2013  · Table 04 Summery of PrsllMnery Cost ES11motee for Soleening Feasibility Study Former Kest Property Carson, CA GeotFnlenGOneullanle

Table B-2Sub-Slab Soil Vapor Results

Former Kast Property

Carson, California

Residential Properties Sampled Through August 31, 2013

Page 84 of 235

Sample ID

AddressSam

ple Date

Sample Tim

eLocation

AnalyteU

nitsFrequency of D

etection

R24749SVBD24749 RAVEN

NA AVE

2010-09-1009:45

BackR24749SVG

24749 RAVENN

A AVE2010-09-10

10:25G

arageR24749SVH

24749 RAVENN

A AVE2010-12-17

12:14House

R24749SVHS24749 RAVEN

NA AVE

2010-12-1712:14

HouseR24749SVG

24749 RAVENN

A AVE2010-12-17

12:37G

arageR24749SVB

24749 RAVENN

A AVE2010-12-17

13:05Back

R24749SVB24749 RAVEN

NA AVE

2013-08-0610:00

BackR24749SVBD

24749 RAVENN

A AVE2013-08-06

10:00Back

R24749SVH24749 RAVEN

NA AVE

2013-08-0610:02

HouseR24749SVG

24749 RAVENN

A AVE2013-08-06

10:29G

arageR24752SVF

24752 RAVENN

A AVE2010-04-09

11:14Front

R24752SVB24752 RAVEN

NA AVE

2010-04-0912:34

BackR24752SVH2

24752 RAVENN

A AVE2010-05-21

13:38House

R24752SVH224752 RAVEN

NA AVE

2012-07-2015:01

HouseR24752SVF

24752 RAVENN

A AVE2012-07-20

15:08Front

R24752SVB24752 RAVEN

NA AVE

2012-07-2015:45

BackN

24803SVG24803 N

EPTUN

E AVE2010-09-07

14:58G

arageN

24803SVB24803 N

EPTUN

E AVE2010-09-07

15:46Back

N24803SVBD

24803 NEPTU

NE AVE

2010-09-0715:46

BackN

24803SVHA24803 N

EPTUN

E AVE2011-03-31

14:15House

N24803SVG

24803 NEPTU

NE AVE

2011-03-3114:59

Garage

N24803SVB

24803 NEPTU

NE AVE

2011-03-3115:33

BackN

24803SVBD24803 N

EPTUN

E AVE2011-03-31

15:33Back

N24803SVHB

24803 NEPTU

NE AVE

2013-02-0114:38

HouseN

24803SVB24803 N

EPTUN

E AVE2013-02-01

14:47Back

N24803SVG

24803 NEPTU

NE AVE

2013-02-0115:18

Garage

N24803SVB

24803 NEPTU

NE AVE

2013-07-1214:58

BackN

24803SVG24803 N

EPTUN

E AVE2013-07-12

15:20G

arageN

24803SVHB24803 N

EPTUN

E AVE2013-07-15

11:15House

P24803SVH24803 PAN

AMA AVE

2010-08-0914:02

HouseP24803SVB

24803 PANAM

A AVE2010-08-09

15:14Back

P24803SVF24803 PAN

AMA AVE

2010-08-0915:45

FrontP24803SVH

24803 PANAM

A AVE2011-02-18

14:16House

P24803SVB24803 PAN

AMA AVE

2011-02-1814:28

BackP24803SVG

24803 PANAM

A AVE2011-02-18

15:05G

arageP24803SVG

24803 PANAM

A AVE2013-01-31

14:39G

arageP24803SVH

24803 PANAM

A AVE2013-01-31

14:40House

P24803SVB24803 PAN

AMA AVE

2013-01-3115:12

BackP24803SVH

24803 PANAM

A AVE2013-08-08

14:45House

P24803SVB24803 PAN

AMA AVE

2013-08-0814:48

BackP24803SVG

24803 PANAM

A AVE2013-08-08

15:15G

arageN

24809SVB24809 N

EPTUN

E AVE2010-10-15

08:57Back

N24809 SVFS

24809 NEPTU

NE AVE

2010-10-1509:35

FrontN

24809SVF24809 N

EPTUN

E AVE2010-10-15

09:35Front

N24809SVH

24809 NEPTU

NE AVE

2010-10-1510:42

HouseN

24809SVB24809 N

EPTUN

E AVE2012-07-20

10:05Back

N24809SVH

24809 NEPTU

NE AVE

2012-07-2010:15

HouseN

24809SVF24809 N

EPTUN

E AVE2012-07-20

10:52Front

P24809SVF24809 PAN

AMA AVE

2009-10-1513:49

FrontP24809SVH

24809 PANAM

A AVE2009-10-15

15:07House

P24809SVHS24809 PAN

AMA AVE

2009-10-1515:07

HouseP24809SVB

24809 PANAM

A AVE2009-10-15

16:08Back

IsopropanolHexane

p/m-Xylene

C6-C8 Aliphatics

1,2,4-Trim

ethyl-benzene

HeptaneC8-C10

AliphaticsC10-C12

AliphaticsC5-C6

AliphaticsEthyl-

benzene

Cumene

(Isopropyl-benzene)

CyclohexaneFreon 11

Methylene

Chloride4-Ethyltoluene

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

4.47%3.74%

3.12%2.72%

2.63%2.63%

2.54%2.01%

2.01%1.97%

1.89%1.89%

1.72%1.72%

1.60%

< 12< 4.2

< 5.2< 98

< 5.8< 4.9

< 140< 160

< 77< 5.2

< 5.8< 4.1

< 6.7< 4.1

< 5.8< 290

4100< 130

< 1502700

200< 150

14000< 170

< 100< 150

< 11< 3.9

< 4.9< 92

< 5.5< 4.6

< 130< 160

< 72< 4.9

< 5.5< 3.8

< 6.3< 3.9

< 5.5< 3.3

< 1.6< 3.3

< 1.6< 1.6

< 1.6< 1.6

< 3.3< 1.6

< 1.6< 1.6

< 581500

49120000

< 29910

440008500

15000120

< 296800

< 33< 20

< 29< 11

< 4.1< 5

< 95< 5.7

< 4.8< 140

< 160< 75

< 5< 5.7

< 4< 6.5

< 4< 5.7

< 12< 4.2

< 5.2< 98

< 5.8< 4.9

< 140< 160

< 77< 5.2

< 5.8< 4.1

< 6.7< 41

< 5.8< 12

< 4.2< 5.2

< 98< 5.8

< 4.9< 140

< 160< 77

< 5.2< 5.8

< 4.1< 6.7

< 41< 5.8

< 12< 4.2

< 5.2< 98

< 5.8< 4.9

< 140< 160

< 77< 5.2

< 5.8< 4.1

< 6.7< 41

< 5.8< 11

31020

27000< 5.5

8913000

48003000

3813

560< 6.3

< 39< 5.5

< 11< 4.1

< 5< 95 N

,J< 5.7

< 4.8< 140 N

,J< 160 N

,J< 75 N

,J< 5

< 5.7< 4

< 6.5< 4

< 5.7< 12

< 4.2< 5.2

< 98 N,J

< 5.8< 4.9

< 140 N,J

< 160 N,J

< 77 N,J

< 5.2< 5.8

< 4.1< 6.7

< 4.1< 5.8

< 20< 7.2

< 8.9< 95 N

,J< 10

< 8.4< 140 N

,J< 160 N

,J< 75 N

,J< 8.9

< 10< 7

< 12< 7.1

< 10< 7.8

< 2.8< 3.4

< 65< 3.9

< 3.2< 92

< 110< 51

< 3.4< 3.9

< 2.7< 4.4

< 27< 3.9

< 7.6< 2.7

< 3.4< 64

< 3.8< 3.2

< 90< 110

< 50< 3.4

< 3.8< 2.7

< 4.4< 27

< 3.8< 7.8

< 2.8< 3.4

< 65< 3.9

< 3.2< 92

< 110< 51

< 3.4< 3.9

< 2.7< 4.4

< 27< 3.9

< 11< 4.1

< 5< 95

< 5.7< 4.8

< 140< 160

< 75< 5

< 5.7< 4

< 6.5< 4

< 5.7< 12

< 4.4< 5.4

< 100< 6.1

< 5.1< 140

< 170< 80

< 5.4< 6.1

< 4.2< 6.9

< 4.3< 6.1

< 12< 4.3

< 5.2< 99

< 5.9< 5

< 140< 170

< 78< 5.2

< 5.9< 4.2

< 6.8< 4.2

< 5.9< 13

< 4.6< 5.7

< 110< 6.5

< 5.4< 150

< 180< 85

< 5.7< 6.5

< 4.5< 7.4

< 4.6< 6.5

< 12< 4.3

< 5.2< 99

< 5.9< 5

< 140< 170

< 78< 5.2

< 5.9< 4.2

< 6.8< 4.2

< 5.9< 13

< 4.5< 5.6

< 100< 6.3

< 5.3< 150

< 180< 84

< 5.6< 6.3

< 4.4< 7.2

< 4.5< 6.3

< 13< 4.5

< 5.6< 100

< 6.3< 5.3

< 150< 180

< 84< 5.6

< 6.3< 4.4

< 7.2< 4.5

< 6.3< 12

< 4.4< 5.4

< 100< 6.1

< 5.1< 140

< 170< 80

< 5.4< 6.1

< 4.2< 6.9

< 43< 6.1

< 13< 4.5

< 5.6< 100

< 6.3< 5.3

< 150< 180

< 84< 5.6

< 6.3< 4.4

< 7.2< 45

< 6.3< 11

< 3.9< 4.8

< 90< 5.4

< 4.5< 130

< 150< 71

< 4.8< 5.4

< 3.8< 6.2

< 38< 5.4

30< 3.6

18< 84

< 5.1< 4.2

< 120< 140

< 6712

< 5.110

< 5.8< 36

< 5.1< 12

< 4.3< 5.3

< 100< 6

< 5< 140

< 170< 79

< 5.3< 6

< 4.2< 6.8

< 42< 6

17< 4.3

< 5.3< 100

< 6< 5

< 140< 170

< 79< 5.3

< 6< 4.2

< 6.8< 42

< 6< 12

< 4.2< 5.2

< 98 N,J

< 5.8< 4.9

< 140 N,J

< 160 N,J

< 77 N,J

< 5.2< 5.8

< 4.1< 6.7

< 4.1< 5.8

< 12< 4.3

< 5.2< 99 N

,J< 5.9

< 5< 140 N

,J< 170 N

,J< 78 N

,J< 5.2

< 5.9< 4.2

< 6.8< 4.2

< 5.9< 11

< 4.1< 5

< 95 N,J

< 5.7< 4.8

< 140 N,J

< 160 N,J

< 75 N,J

< 5< 5.7

< 4< 6.5

< 4< 5.7

< 11< 4.1

< 5< 95

< 5.7< 4.8

< 140< 160

< 75< 5

< 5.7< 4

< 6.5< 4

< 5.7< 11

< 4.1< 5

< 95< 5.7

< 4.8< 140

< 160< 75

< 5< 5.7

< 4< 6.5

< 4< 5.7

< 12< 4.3

< 5.3< 100

< 6< 5

< 140< 170

< 80< 5.3

< 6< 4.2

< 6.9< 4.3

< 6< 11

< 4.1< 5

< 95< 5.7

< 4.8< 140

< 160< 75

< 5< 5.7

< 4< 6.5

< 40< 5.7

< 13< 4.7

< 5.8< 110

< 6.6< 5.5

< 160< 190

< 87< 5.8

< 6.6< 4.6

< 7.6< 47

< 6.6< 11

< 4.1< 5

< 95< 5.7

< 4.8< 140

< 160< 75

< 5< 5.7

< 4< 6.5

< 40< 5.7

< 12< 4.2

< 5.2< 98

< 5.9< 4.9

< 140< 170

< 78< 5.2

< 5.9< 4.1

< 6.7< 42

< 5.9< 13

< 4.6< 5.6

< 110< 6.4

< 5.3< 150

< 180< 84

< 5.6< 6.4

< 4.4< 7.3

< 45< 6.4

< 12< 4.2

< 5.1< 97

< 5.8< 4.8

< 140< 160

< 77< 5.1

< 5.8< 4.1

< 6.6< 41

< 5.8< 11

< 3.9< 4.9

< 92< 5.5

< 4.6< 130

< 160< 72

< 4.9< 5.5

< 3.8< 6.3

< 3.9< 5.5

< 3.1< 1.6

< 3.1< 1.6

< 1.6< 1.6

< 1.6< 3.1

< 1.6< 1.6

< 1.6< 11

< 3.9< 4.8

< 90< 5.4

< 4.5< 130

< 150< 71

< 4.8< 5.4

< 3.8< 6.2

< 3.8< 5.4

< 11< 4.1

< 5120

< 5.7< 4.8

< 140< 160

< 75< 5

< 5.7< 4

< 6.5< 4

< 5.7< 7.8

< 2.8< 3.4

< 65< 3.9

< 3.2< 92

< 110< 51

< 3.4< 3.9

< 2.7< 4.4

< 27< 3.9

55< 2.8

< 3.4< 65

< 3.9< 3.2

< 92< 110

< 51< 3.4

< 3.9< 2.7

< 4.4< 27

< 3.9< 7.9

< 2.8< 3.5

< 66< 4

< 3.3< 94

< 110< 52

< 3.5< 4

< 2.8< 4.5

< 28< 4

< 12< 4.2

< 5.2< 98 N

,J< 5.9

< 4.9< 140 N

,J< 170 N

,J< 77 N

,J< 5.2

< 5.9< 4.1

< 6.7< 4.2

< 5.9< 12

< 4.2< 5.2

< 98 N,J

< 5.9< 4.9

< 140 N,J

< 170 N,J

< 77 N,J

< 5.2< 5.9

< 4.1< 6.7

< 4.2< 5.9

3.6 J< 2.1

< 4.1< 2.1

< 2.1< 2.1

1 J< 4.1

2.9< 2.1

< 2.1< 12

< 4.2< 5.2

< 99 N,J

< 5.9< 4.9

< 140 N,J

< 170 N,J

< 78 N,J

< 5.2< 5.9

< 4.1< 6.8

< 4.2< 5.9

Page 317: Table Proposed Cleanup Levels Groundwater · 10/21/2013  · Table 04 Summery of PrsllMnery Cost ES11motee for Soleening Feasibility Study Former Kest Property Carson, CA GeotFnlenGOneullanle

Table B-2Sub-Slab Soil Vapor Results

Former Kast Property

Carson, California

Residential Properties Sampled Through August 31, 2013

Page 85 of 235

Sample ID

AddressSam

ple Date

Sample Tim

eLocation

AnalyteU

nitsFrequency of D

etection

P24809SVBD24809 PAN

AMA AVE

2009-10-1516:08

BackP24809SVB

24809 PANAM

A AVE2010-07-28

10:19Back

P24809SVF24809 PAN

AMA AVE

2010-07-2811:02

FrontP24809SVH

24809 PANAM

A AVE2011-02-08

09:21House

P24809SVHA24809 PAN

AMA AVE

2012-03-2310:28

HouseP24809SVF

24809 PANAM

A AVE2012-03-23

11:04Front

P24809SVB24809 PAN

AMA AVE

2012-03-2311:12

BackP24809SVBS

24809 PANAM

A AVE2012-03-23

11:12Back

P24812SVH24812 PAN

AMA AVE

2010-05-0508:54

HouseP24812SVB

24812 PANAM

A AVE2010-05-05

10:21Back

P24812SVBD24812 PAN

AMA AVE

2010-05-0510:21

BackP24812SVF

24812 PANAM

A AVE2010-05-05

11:08Front

P24812SVH24812 PAN

AMA AVE

2012-12-0615:07

HouseP24812SVB

24812 PANAM

A AVE2012-12-06

15:08Back

P24812SVF24812 PAN

AMA AVE

2012-12-0615:39

FrontP24812SVB

24812 PANAM

A AVE2013-05-01

14:58Back

P24812SVH24812 PAN

AMA AVE

2013-05-0115:14

HouseP24812SVF

24812 PANAM

A AVE2013-05-01

15:34Front

P24813SVH24813 PAN

AMA AVE

2010-10-2609:15

HouseP24813SVB

24813 PANAM

A AVE2010-10-26

10:54Back

P24813SVFA24813 PAN

AMA AVE

2010-11-2310:00

FrontP24813SVFAS

24813 PANAM

A AVE2010-11-23

10:00Front

P24813SVH24813 PAN

AMA AVE

2012-08-2310:00

HouseP24813SVFA

24813 PANAM

A AVE2012-08-23

10:06Front

P24813SVFAD24813 PAN

AMA AVE

2012-08-2310:06

FrontP24813SVB

24813 PANAM

A AVE2012-08-23

10:28Back

P24813SVB24813 PAN

AMA AVE

2013-06-0410:00

BackP24813SVBS

24813 PANAM

A AVE2013-06-04

10:00Back

P24813SVH24813 PAN

AMA AVE

2013-06-0410:08

HouseP24813SVFA

24813 PANAM

A AVE2013-06-04

10:32Front

P24813SVFAS24813 PAN

AMA AVE

2013-06-0410:32

FrontN

24815SVB24815 N

EPTUN

E AVE2009-09-17

14:43Back

N24815SVF

24815 NEPTU

NE AVE

2009-09-1715:57

FrontN

24815SVH24815 N

EPTUN

E AVE2010-08-13

10:09House

N24815SVF

24815 NEPTU

NE AVE

2010-08-1310:54

FrontN

24815SVB24815 N

EPTUN

E AVE2010-08-13

11:59Back

N24815SVH

24815 NEPTU

NE AVE

2012-03-2909:58

HouseN

24815SVHS24815 N

EPTUN

E AVE2012-03-29

09:58House

N24815SVB

24815 NEPTU

NE AVE

2012-03-2910:25

BackN

24815SVF24815 N

EPTUN

E AVE2012-03-29

10:37Front

P24818SVH24818 PAN

AMA AVE

2010-11-1210:21

HouseP24818SVHS

24818 PANAM

A AVE2010-11-12

10:21House

P24818SVF24818 PAN

AMA AVE

2010-11-1211:06

FrontP24818SVFD

24818 PANAM

A AVE2010-11-12

11:06Front

P24818SVF24818 PAN

AMA AVE

2012-06-0810:25

FrontP24818SVFS

24818 PANAM

A AVE2012-06-08

10:25Front

P24818SVH24818 PAN

AMA AVE

2012-06-0810:30

HouseP24818SVBA

24818 PANAM

A AVE2012-06-08

11:02Back

P24818SVBAS24818 PAN

AMA AVE

2012-06-0811:02

BackP24818SVBA

24818 PANAM

A AVE2013-03-29

15:42Back

P24818SVFA24818 PAN

AMA AVE

2013-04-0215:37

FrontP24818SVHA

24818 PANAM

A AVE2013-04-02

15:40House

IsopropanolHexane

p/m-Xylene

C6-C8 Aliphatics

1,2,4-Trim

ethyl-benzene

HeptaneC8-C10

AliphaticsC10-C12

AliphaticsC5-C6

AliphaticsEthyl-

benzene

Cumene

(Isopropyl-benzene)

CyclohexaneFreon 11

Methylene

Chloride4-Ethyltoluene

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

4.47%3.74%

3.12%2.72%

2.63%2.63%

2.54%2.01%

2.01%1.97%

1.89%1.89%

1.72%1.72%

1.60%

< 12< 4.2

< 5.2< 98 N

,J< 5.9

< 4.9< 140 N

,J< 170 N

,J< 77 N

,J< 5.2

< 5.9< 4.1

< 6.7< 4.2

< 5.9< 11

< 4.1< 5

< 95 N,J

< 5.7< 4.8

< 140 N,J

< 160 N,J

< 75 N,J

< 5< 5.7

< 4< 6.5

< 4< 5.7

< 12< 4.4

< 5.4< 100 N

,J< 6.1

< 5.1< 140 N

,J< 170 N

,J< 80 N

,J< 5.4

< 6.1< 4.3

< 7< 4.3

< 6.1< 12

< 4.3< 5.2

< 99< 5.9

< 5< 140

< 170< 78

< 5.2< 5.9

< 4.2< 6.8

< 4.2< 5.9

< 7.8< 2.8

< 3.4< 65

< 3.9< 3.2

< 92< 110

< 51< 3.4

< 3.9< 2.7

< 4.4< 27

< 3.9< 7.8

< 2.8< 3.4

< 65< 3.9

< 3.2< 92

< 110< 51

< 3.4< 3.9

< 2.7< 4.4

< 27< 3.9

< 7.6< 2.7

< 3.4< 64

< 3.8< 3.2

< 90< 110

< 50< 3.4

< 3.8< 2.7

< 4.4< 27

< 3.8< 3.4 U

< 1.7 U< 3.4 U

< 1.7 U< 1.7 U

< 1.7 U< 1.7 U

< 3.4 U< 1.7 U

< 1.7 U< 1.7 U

< 12< 4.3

< 5.2< 99 N

,J< 5.9

< 5< 140 N

,J< 170 N

,J< 78 N

,J< 5.2

< 5.9< 4.2

< 6.8< 4.2

< 5.9< 12

< 4.2< 5.1

< 97 N,J

< 5.8< 4.8

< 140 N,J

< 160 N,J

< 77 N,J

< 5.1< 5.8

< 4.1< 6.6

< 4.1< 5.8

< 12< 4.2

< 5.2< 98 N

,J< 5.9

< 4.9< 140 N

,J< 170 N

,J< 77 N

,J< 5.2

< 5.9< 4.1

< 6.7< 4.2

< 5.9< 11

< 4.1< 5

< 95 N,J

< 5.7< 4.8

< 140 N,J

< 160 N,J

< 75 N,J

< 5< 5.7

< 4< 6.5

< 4< 5.7

< 127.2

< 5.2< 98

< 5.8< 4.9

< 140< 160

< 77< 5.2

< 5.8< 4.1

< 6.7< 41

< 5.8< 12

< 4.3< 5.2

< 99< 5.9

< 5< 140

< 170< 78

< 5.2< 5.9

< 4.2< 6.8

< 42< 5.9

< 124.5

< 5.5< 100

< 6.2< 5.2

< 150< 180

< 82< 5.5

< 6.2< 4.3

< 7.1< 44

< 6.2< 11

< 4.1< 5

< 95< 5.7

< 4.8< 140

< 160< 75

< 5< 5.7

< 4< 6.5

< 40< 5.7

< 12< 4.1

< 5.1< 96

< 5.8< 4.8

< 140< 160

< 76< 5.1

< 5.8< 4

< 6.6< 41

< 5.8< 12

< 4.3< 5.3

< 100< 6

< 5< 140

< 170< 79

< 5.3< 6

< 4.2< 6.8

< 42< 6

< 11< 4

< 5< 94

< 5.6< 4.7

< 130< 160

< 74< 5

< 5.6< 3.9

< 6.4< 4

< 5.6< 12

< 4.2< 5.2

< 98< 5.8

< 4.9< 140

< 160< 77

< 5.2< 5.8

< 4.1< 6.7

< 4.1< 5.8

< 11< 4.1

< 5< 95

< 5.7< 4.8

< 140< 160

< 75< 5

< 5.7< 4

< 6.5< 4

< 5.7< 3.3

< 1.7< 3.3

2.7< 1.7

< 1.7< 1.7

< 3.32.3

1.8< 1.7

< 12< 4.4

< 5.4< 100

< 6.1< 5.1

< 140< 170

< 80< 5.4

< 6.1< 4.2

< 6.9< 43

< 6.114

< 4.3< 5.2

1100 j< 5.9

< 5570 j

< 170< 78

7.8< 5.9

5.3< 6.8

< 42< 5.9

< 12< 4.3

< 5.2120 j

< 5.9< 5

< 140< 170

< 78< 5.2

< 5.9< 4.2

< 6.8< 42

< 5.9< 11

< 4.1< 5

< 95< 5.7

< 4.8< 140

< 160< 75

< 5< 5.7

< 4< 6.5

< 40< 5.7

< 11< 4.1

< 5< 95

< 5.7< 4.7

< 130< 160

< 75< 5

< 5.7< 4

< 6.5< 40

< 5.7< 20 U

< 2 U< 4 U

< 2 U< 2 U

< 2 U< 2 U

< 4 U< 2 U

3.2< 2 U

< 11< 3.8

< 4.7< 89

< 5.4< 4.5

< 130< 150

< 70< 4.7

< 5.4< 3.8

< 6.1< 38

< 5.4< 11

< 4< 5

< 93< 5.6

< 4.7< 130

< 160< 74

< 4.9< 5.6

< 3.9< 6.4

< 40< 5.6

< 19 U< 1.9 U

< 3.9 U< 1.9 U

< 1.9 U< 1.9 U

< 1.9 U< 3.9 U

< 1.9 U4

< 1.9 U< 6.8

< 2.4< 3

< 110 N,J

< 3.4< 2.8

< 150 N,J

< 180 N,J,U

J< 84 N

,J< 3

< 3.4< 2.4

< 3.9< 2.4

< 3.4< 12

< 4.3< 5.3

< 100 N,J

< 6< 5

< 140 N,J

< 170 N,J,U

J< 80 N

,J< 5.3

< 6< 4.2

< 6.9< 4.3

< 6< 11

< 4< 5

< 94 N,J

< 5.6< 4.7

< 130 N,J

< 160 N,J

< 74 N,J

< 5< 5.6

< 3.9< 6.4

< 4< 5.6

< 11< 4.1

< 5< 95 N

,J< 5.7

< 4.8< 140 N

,J< 160 N

,J< 75 N

,J< 5

< 5.7< 4

< 6.5< 4

< 5.7< 11

< 4.1< 5

< 95 N,J

< 5.7< 4.8

< 140 N,J

< 160 N,J

< 75 N,J

< 5< 5.7

< 4< 6.5

< 4< 5.7

< 7.7< 2.8

< 3.4< 64

< 3.8< 3.2

< 91< 110

< 51< 3.4

< 3.8< 2.7

< 4.4< 27

< 3.8< 3.5 U

< 1.7 U< 3.5 U

< 1.7 U< 1.7 U

< 1.7 U< 1.7 U

< 3.5 U< 1.7 U

< 1.7 U< 1.7 U

< 7.5< 2.7

< 3.3< 62

< 3.7< 3.1

< 88< 100

< 49< 3.3

< 3.7< 2.6

< 4.3< 26

< 3.7< 7.8

< 2.8< 3.4

< 65< 3.9

< 3.2< 92

< 110< 51

< 3.4< 3.9

< 2.7< 4.4

< 27< 3.9

< 12< 4.3

< 5.2< 99

< 5.9< 5

< 140< 170

< 78< 5.2

< 5.9< 4.2

< 6.8< 4.2

< 5.9< 3.4

< 1.7< 3.4

< 1.7< 1.7

< 1.7< 1.7

< 3.4< 1.7

< 1.7< 1.7

< 12< 4.3

< 5.2< 99

< 5.9< 5

< 140< 170

< 78< 5.2

< 5.9< 4.2

< 6.8< 4.2

< 5.9< 12

< 4.2< 5.2

< 98< 5.8

< 4.9< 140

< 160< 77

< 5.2< 5.8

< 4.1< 6.7

< 4.1< 5.8

< 8.1< 2.9

< 3.6< 67

< 4< 3.4

< 95< 110

< 53< 3.6

< 4< 2.8

< 4.6< 28

< 4< 3.5 U

< 1.7 U< 3.5 U

< 1.7 U< 1.7 U

< 1.7 U< 1.7 U

< 3.5 U< 1.7 U

< 1.7 U< 1.7 U

< 7.9< 2.8

< 3.5< 66

< 4< 3.3

< 94< 110

< 52< 3.5

< 4< 2.8

< 4.5< 28

< 4< 7.8

< 2.8< 3.4

< 65< 3.9

< 3.2< 92

< 110< 51

< 3.4< 3.9

< 2.7< 4.4

< 27< 3.9

< 3.5 U< 1.7 U

< 3.5 U< 1.7 U

< 1.7 U< 1.7 U

< 1.7 U< 3.5 U

< 1.7 U< 1.7 U

< 1.7 U< 11

< 4< 5

< 93< 5.6

< 4.7< 130

< 160< 74

< 4.9< 5.6

< 3.9< 6.4

< 40< 5.6

< 11< 4

< 5< 93

< 5.6< 4.7

230< 160

< 74 PF< 4.9

< 5.6< 3.9

< 6.4< 40

< 5.6< 12

< 4.2< 5.2

< 98< 5.9

< 4.9< 140

< 170< 78 PF

< 5.2< 5.9

4.5< 6.7

< 42< 5.9

Page 318: Table Proposed Cleanup Levels Groundwater · 10/21/2013  · Table 04 Summery of PrsllMnery Cost ES11motee for Soleening Feasibility Study Former Kest Property Carson, CA GeotFnlenGOneullanle

Table B-2Sub-Slab Soil Vapor Results

Former Kast Property

Carson, California

Residential Properties Sampled Through August 31, 2013

Page 86 of 235

Sample ID

AddressSam

ple Date

Sample Tim

eLocation

AnalyteU

nitsFrequency of D

etection

P24819SVH24819 PAN

AMA AVE

2010-06-1009:16

HouseP24819SVB

24819 PANAM

A AVE2010-06-10

11:10Back

P24819SVF24819 PAN

AMA AVE

2010-06-1011:17

FrontP24819SVF

24819 PANAM

A AVE2011-04-21

11:16Front

P24819SVFS24819 PAN

AMA AVE

2011-04-2111:16

FrontP24819SVH

24819 PANAM

A AVE2011-04-21

12:22House

P24819SVHS24819 PAN

AMA AVE

2011-04-2112:22

HouseP24819SVB

24819 PANAM

A AVE2011-04-21

12:31Back

P24819SVBS24819 PAN

AMA AVE

2011-04-2112:31

BackP24819SVB

24819 PANAM

A AVE2013-08-22

14:46Back

P24819SVH24819 PAN

AMA AVE

2013-08-2215:07

HouseP24819SVF

24819 PANAM

A AVE2013-08-22

15:22Front

P24822SVH24822 PAN

AMA AVE

2010-06-2309:06

HouseP24822SVB

24822 PANAM

A AVE2010-06-23

09:51Back

P24822SVF24822 PAN

AMA AVE

2010-06-2310:32

FrontP24822SVH

24822 PANAM

A AVE2013-06-20

10:29House

P24822SVF24822 PAN

AMA AVE

2013-06-2010:35

FrontP24822SVFD

24822 PANAM

A AVE2013-06-20

10:35Front

P24822SVB24822 PAN

AMA AVE

2013-06-2108:41

BackP24828SVH

24828 PANAM

A AVE2011-10-27

08:46House

P24828SVB24828 PAN

AMA AVE

2011-10-2709:21

BackP24828SVBS

24828 PANAM

A AVE2011-10-27

09:21Back

P24828SVF24828 PAN

AMA AVE

2011-10-2710:03

FrontP24828SVB

24828 PANAM

A AVE2012-09-13

10:20Back

P24828SVBS24828 PAN

AMA AVE

2012-09-1310:20

BackP24828SVH

24828 PANAM

A AVE2012-09-13

10:24House

P24828SVF24828 PAN

AMA AVE

2012-09-1310:51

FrontP24828SVB

24828 PANAM

A AVE2013-04-16

14:53Back

P24828SVH24828 PAN

AMA AVE

2013-04-1615:01

HouseP24828SVF

24828 PANAM

A AVE2013-04-16

15:21Front

P24829SVH24829 PAN

AMA AVE

2010-05-2109:17

HouseP24829SVP

24829 PANAM

A AVE2010-05-21

10:31Back Patio

P24829SVPS24829 PAN

AMA AVE

2010-05-2110:31

Back PatioP24829SVF

24829 PANAM

A AVE2010-05-21

11:21Front

P24829SVH24829 PAN

AMA AVE

2010-09-1308:53

HouseP24829SVF

24829 PANAM

A AVE2010-09-13

09:52Front

P24829SVFS24829 PAN

AMA AVE

2010-09-1309:52

FrontP24829SVB

24829 PANAM

A AVE2010-09-13

10:42Back Patio

P24829SVBS24829 PAN

AMA AVE

2010-09-1310:42

Back PatioP24829SVH

24829 PANAM

A AVE2013-05-09

10:16House

P24829SVF24829 PAN

AMA AVE

2013-05-0910:26

FrontP24829SVFD

24829 PANAM

A AVE2013-05-09

10:26Front

P24832SVG24832 PAN

AMA AVE

2010-10-0609:38

Garage

P24832SVB24832 PAN

AMA AVE

2010-10-0610:13

BackP24832SVH

24832 PANAM

A AVE2010-10-06

10:56House

P24832SVB24832 PAN

AMA AVE

2012-09-2815:01

BackP24832SVG

24832 PANAM

A AVE2012-09-28

15:21G

arageP24832SVH

24832 PANAM

A AVE2012-09-28

16:10House

P24832SVH24832 PAN

AMA AVE

2013-05-1614:55

HouseP24832SVB

24832 PANAM

A AVE2013-05-16

15:04Back

P24832SVBD24832 PAN

AMA AVE

2013-05-1615:04

BackP24832SVG

24832 PANAM

A AVE2013-05-16

15:28G

arage

IsopropanolHexane

p/m-Xylene

C6-C8 Aliphatics

1,2,4-Trim

ethyl-benzene

HeptaneC8-C10

AliphaticsC10-C12

AliphaticsC5-C6

AliphaticsEthyl-

benzene

Cumene

(Isopropyl-benzene)

CyclohexaneFreon 11

Methylene

Chloride4-Ethyltoluene

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

4.47%3.74%

3.12%2.72%

2.63%2.63%

2.54%2.01%

2.01%1.97%

1.89%1.89%

1.72%1.72%

1.60%

13< 4.1

< 5< 95 N

,J< 5.7

< 4.8< 140 N

,J< 160 N

,J< 75 N

,J< 5

< 5.7< 4

< 6.5< 4

< 5.7< 11

< 3.9< 4.9

< 92 N,J

< 5.5< 4.6

< 130 N,J

< 160 N,J

< 72 N,J

< 4.9< 5.5

< 3.8< 6.3

< 3.9< 5.5

< 11< 4

5.4< 93 N

,J15

< 4.6< 130 N

,J1400 N

,J< 73 N

,J< 4.9

< 5.6< 3.9

< 6.3< 3.9

10< 11

< 4.1< 5

< 95< 5.7

< 4.8< 140

< 160< 75

< 5< 5.7

< 4< 6.5

< 4< 5.7

< 4< 2

< 4< 2

< 2< 2

< 2< 4

< 2< 2

< 2< 11

< 4.1< 5

< 95< 5.7

< 4.8< 140

< 160< 75

< 5< 5.7

< 4< 6.5

< 4< 5.7

< 2.9< 1.4

< 2.9< 1.4

< 1.4< 1.4

< 1.4< 2.9

< 1.4< 1.4

< 1.4< 11

< 4.1< 5

< 95< 5.7

< 4.8< 140

< 160< 75

< 5< 5.7

< 4< 6.5

< 4< 5.7

< 3.5< 1.7

< 3.5< 1.7

< 1.7< 1.7

< 1.7< 3.5

< 1.7< 1.7

< 1.7< 12

< 4.3< 5.2

< 99< 5.9

< 5< 140

< 170< 78

< 5.2< 5.9

< 4.2< 6.8

< 42< 5.9

< 12< 4.3

< 5.2< 99

< 5.9< 5

< 140< 170

< 78< 5.2

< 5.9< 4.2

< 6.8< 42

< 5.9< 12

< 4.2< 5.1

< 97< 5.8

< 4.8< 140

< 160< 77

< 5.1< 5.8

< 4.1< 6.6

< 41< 5.8

< 116.3

5.4< 95 N

,J< 5.7

5.8< 140 N

,J< 160 N

,J< 75 N

,J< 5

< 5.7< 4

< 6.5< 4

< 5.7< 12

< 4.2< 5.2

< 98 N,J

< 5.8< 4.9

< 140 N,J

< 160 N,J

< 77 N,J

< 5.2< 5.8

< 4.1< 6.7

< 4.1< 5.8

< 11< 3.9

< 4.8< 90 N

,J< 5.4

< 4.5440 N

,J< 150 N

,J< 71 N

,J< 4.8

< 5.4< 3.8

< 6.2< 3.8

< 5.4< 12

< 4.4< 5.4

< 100< 6.1

< 5.1< 140

< 170< 80 PF

< 5.4< 6.1

< 4.2< 6.9

< 43< 6.1

< 11< 4.1

< 5< 95

< 5.7< 4.8

< 140< 160

< 75 PF< 5

< 5.7< 4

< 6.5< 40

< 5.7< 12

< 4.2< 5.1

< 97< 5.8

< 4.8< 140

< 160< 76 PF

< 5.1< 5.8

< 4.1< 6.6

< 41< 5.8

< 12< 4.4

< 5.4< 100

< 6.2< 5.1

< 150< 170

< 81 PF< 5.4

< 6.2< 4.3

< 7< 44

< 6.2< 7.6

< 2.7< 3.4

< 64< 3.8

< 3.2< 90

< 110< 50

< 3.4< 3.8

< 2.7< 4.4

< 2.7< 3.8

< 7.2< 2.6

< 3.2< 60

< 3.6< 3

< 85< 100

< 47< 3.2

< 3.6< 2.5

< 4.1< 2.5

< 3.6< 3.3 U

< 1.6 U< 3.3 U

< 1.6 U< 1.6 U

< 1.6 U< 1.6 U

< 3.3 U< 1.6 U

< 1.6 U< 1.6 U

< 7.8< 2.8

< 3.4< 65

< 3.9< 3.2

< 92< 110

< 51< 3.4

< 3.9< 2.7

< 4.4< 2.7

< 3.9< 12

8.7 j< 5.2

< 98< 5.8

19 j< 140

< 160< 77

< 5.2< 5.8

< 4.1< 6.7

< 41< 5.8

< 20 U< 2 U

< 3.9 U< 2 U

< 2 U< 2 U

< 2 U< 3.9 U

< 2 U< 2 U

< 2 U< 11

< 3.8< 4.7

< 88< 5.3

< 4.4< 120

< 150< 70

< 4.7< 5.3

< 3.7< 6.1

< 38< 5.3

< 116.9

< 5< 94

< 5.65.5

< 130< 160

< 74< 5

< 5.6< 3.9

< 6.4< 40

< 5.6< 11

< 4.1< 5

< 95< 5.7

< 4.7< 130

< 160< 75

< 5< 5.7

< 4< 6.5

< 40< 5.7

< 12< 4.5

< 5.6< 100

< 6.3< 5.2

< 150< 180

< 83< 5.6

< 6.3< 4.4

< 7.2< 44

< 6.3< 12

< 4.5< 5.5

< 100< 6.2

< 5.2< 150

< 180< 82

< 5.5< 6.2

< 4.4< 7.1

< 44< 6.2

< 11< 4

< 5< 94 N

,J< 5.6

< 4.7< 130 N

,J< 160 N

,J< 74 N

,J< 5

< 5.6< 3.9

< 6.4< 4

< 5.6< 11

< 3.9< 4.9

< 92 N,J

< 5.5< 4.6

< 130 N,J

< 160 N,J

< 72 N,J

< 4.99.3

< 3.8< 6.3

9.3< 5.5

< 3.3< 1.7

< 3.3< 1.7

< 1.7< 1.7

2.1< 3.3

< 1.7< 1.7

< 1.7< 12

< 4.3< 5.2

< 99 N,J

< 5.9< 5

< 140 N,J

< 170 N,J

< 78 N,J

< 5.2< 5.9

< 4.2< 6.8

< 4.2< 5.9

< 11< 4.1

< 5< 95

< 5.7< 4.8

< 140< 160

< 75< 5

< 5.7< 4

< 6.5< 4

< 5.7< 12

< 4.2< 5.2

< 98< 5.8

< 4.9< 140

< 160< 77

< 5.2< 5.8

< 4.1< 6.7

< 4.1< 5.8

< 3.5< 1.7

< 3.5< 1.7

< 1.7< 1.7

< 1.7< 3.5

< 1.7< 1.7

< 1.7< 11

< 4.1< 5

6400< 5.7

< 4.82100

480340

9.816

< 4< 6.5

< 4< 5.7

< 3.4< 1.7

< 3.4< 1.7

< 1.7< 1.7

< 1.7< 3.4

< 1.7< 1.7

< 1.7< 12

< 4.2< 5.1

< 97< 5.8

< 4.8< 140

< 160 PF< 76

< 5.1< 5.8

< 4.1< 6.6

< 41< 5.8

< 12< 4.5

< 5.5< 100

< 6.3< 5.2

< 150< 180 PF

< 82< 5.5

< 6.3< 4.4

< 7.2< 44

< 6.3< 12

< 4.5< 5.5

< 100< 6.2

< 5.2< 150

< 180 PF< 82

< 5.5< 6.2

< 4.4< 7.1

< 44< 6.2

< 11< 4.1

< 5< 95

< 5.7< 4.8

< 140< 160

< 75< 5

< 5.7< 4

< 6.5< 4

< 5.7< 11

< 4.1< 5

< 95< 5.7

< 4.7< 130

< 160< 75

< 5< 5.7

< 4< 6.5

< 4< 5.7

< 11< 4.1

< 5< 95

< 5.7< 4.8

< 140< 160

< 75< 5

< 5.7< 4

< 6.5< 4

< 5.7< 12

< 4.4< 5.4

< 100< 6.1

< 5.1< 140

< 170< 80

< 5.4< 6.1

< 4.2< 6.9

< 43< 6.1

< 12< 4.2

< 5.2< 98

< 5.8< 4.9

< 140< 160

< 77< 5.2

< 5.8< 4.1

< 6.7< 41

< 5.8< 11

4.3< 5

< 94< 5.6

< 4.7< 130

< 160< 74

< 5< 5.6

< 3.9< 6.4

< 40< 5.6

< 12< 4.3

< 5.3< 100

< 6< 5

< 140< 170

< 79 PF< 5.3

< 6< 4.2

< 6.9< 42

< 6< 12

< 4.3< 5.2

< 99< 5.9

< 5< 140

< 170< 78 PF

< 5.2< 5.9

< 4.2< 6.8

< 42< 5.9

< 12< 4.3

< 5.3< 100

< 6< 5

< 140< 170

< 79 PF< 5.3

< 6< 4.2

< 6.8< 42

< 6< 11

< 4< 4.9

< 93< 5.6

< 4.6< 130

< 160< 73 PF

< 4.9< 5.6

< 3.9< 6.4

< 39< 5.6

Page 319: Table Proposed Cleanup Levels Groundwater · 10/21/2013  · Table 04 Summery of PrsllMnery Cost ES11motee for Soleening Feasibility Study Former Kest Property Carson, CA GeotFnlenGOneullanle

Table B-2Sub-Slab Soil Vapor Results

Former Kast Property

Carson, California

Residential Properties Sampled Through August 31, 2013

Page 87 of 235

Sample ID

AddressSam

ple Date

Sample Tim

eLocation

AnalyteU

nitsFrequency of D

etection

P24833SVH24833 PAN

AMA AVE

2010-10-1409:36

HouseP24833SVF

24833 PANAM

A AVE2010-10-14

10:20Front

P24833SVB24833 PAN

AMA AVE

2010-10-1411:06

BackP24833 SVB

24833 PANAM

A AVE2012-11-29

14:47Back

P24833 SVH24833 PAN

AMA AVE

2012-11-2914:49

HouseP24833 SVF

24833 PANAM

A AVE2012-11-29

15:19Front

P24833SVH24833 PAN

AMA AVE

2013-05-0914:46

HouseP24833SVB

24833 PANAM

A AVE2013-05-09

14:51Back

P24833SVF24833 PAN

AMA AVE

2013-05-0915:15

FrontP24838SVB2

24838 PANAM

A AVE2009-09-22

14:17Back

P24838SVF24838 PAN

AMA AVE

2009-09-2214:54

FrontP24838SVH

24838 PANAM

A AVE2010-06-01

09:00House

P24838SVF24838 PAN

AMA AVE

2010-06-0110:36

FrontP24838SVB3

24838 PANAM

A AVE2010-09-08

08:55Back

P24838SVB324838 PAN

AMA AVE

2013-05-0810:40

BackP24838SVH

24838 PANAM

A AVE2013-05-08

10:45House

P24838SVF24838 PAN

AMA AVE

2013-05-0811:08

FrontP24838SVFD

24838 PANAM

A AVE2013-05-08

11:08Front

N24904SVH

24904 NEPTU

NE AVE

2010-07-1613:01

HouseN

24904SVG24904 N

EPTUN

E AVE2010-07-16

13:35G

arageN

24904SVB24904 N

EPTUN

E AVE2010-07-16

14:11Back

N24904SVG

24904 NEPTU

NE AVE

2012-09-1416:04

Garage

N24904SVG

D24904 N

EPTUN

E AVE2012-09-14

16:04G

arageN

24904SVH24904 N

EPTUN

E AVE2012-09-14

16:15House

N24904SVB

24904 NEPTU

NE AVE

2012-09-1416:39

BackN

24904SVB24904 N

EPTUN

E AVE2013-06-18

09:52Back

N24904SVBS

24904 NEPTU

NE AVE

2013-06-1809:52

BackN

24904SVH24904 N

EPTUN

E AVE2013-06-18

10:06House

N24904SVG

24904 NEPTU

NE AVE

2013-06-1810:33

Garage

N24904SVG

S24904 N

EPTUN

E AVE2013-06-18

10:33G

arageN

24912SVB24912 N

EPTUN

E AVE2009-09-30

13:15Back

N24912SVF

24912 NEPTU

NE AVE

2009-09-3013:55

FrontN

24912SVH24912 N

EPTUN

E AVE2010-06-14

09:58House

N24912SVB

24912 NEPTU

NE AVE

2010-06-1410:48

BackN

24912SVF24912 N

EPTUN

E AVE2010-06-14

11:36Front

N24912SVH

24912 NEPTU

NE AVE

2012-03-1615:11

HouseN

24912SVF24912 N

EPTUN

E AVE2012-03-16

15:32Front

N24912SVFD

24912 NEPTU

NE AVE

2012-03-1615:32

FrontN

24912SVB24912 N

EPTUN

E AVE2012-03-16

16:13Back

244301SVH301 244TH ST

2010-10-1809:35

House244301SVF

301 244TH ST2010-10-18

10:08Front

244301SVB301 244TH ST

2010-10-1810:51

Back244301SVH

301 244TH ST2013-01-31

09:50House

244301SVB301 244TH ST

2013-01-3110:06

Back244301SVF

301 244TH ST2013-01-31

10:19Front

244301SVFD301 244TH ST

2013-01-3110:19

Front244301SVH

301 244TH ST2013-06-26

10:17House

244301SVF301 244TH ST

2013-06-2610:40

Front244301SVB

301 244TH ST2013-06-26

10:44Back

244301SVBD301 244TH ST

2013-06-2610:44

Back244305SVH

305 244TH ST2010-07-01

14:36House

244305SVG305 244TH ST

2010-07-0115:23

Garage

IsopropanolHexane

p/m-Xylene

C6-C8 Aliphatics

1,2,4-Trim

ethyl-benzene

HeptaneC8-C10

AliphaticsC10-C12

AliphaticsC5-C6

AliphaticsEthyl-

benzene

Cumene

(Isopropyl-benzene)

CyclohexaneFreon 11

Methylene

Chloride4-Ethyltoluene

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

4.47%3.74%

3.12%2.72%

2.63%2.63%

2.54%2.01%

2.01%1.97%

1.89%1.89%

1.72%1.72%

1.60%

2914

< 4.5330

< 5.114

1400330

260< 4.5

< 5.1< 3.6

< 5.9< 3.6

< 5.1< 12

< 4.2< 5.2

< 98< 5.9

< 4.9< 140

< 170< 77

< 5.2< 5.9

< 4.1< 6.7

< 4.2< 5.9

< 11< 4.1

< 5< 95

< 5.7< 4.8

< 140< 160

< 75< 5

< 5.7< 4

< 6.5< 4

< 5.7< 11

< 4< 5

< 94< 5.6

< 4.7< 130

< 160< 74

< 5< 5.6

< 3.9< 6.4

< 40< 5.6

< 11< 3.9

< 4.8< 90

< 5.4< 4.5

< 130< 150

< 71< 4.8

< 5.4< 3.8

< 6.2< 38

< 5.4< 12

< 4.4< 5.5

< 100< 6.2

< 5.2< 150

< 180< 82

< 5.5< 6.2

< 4.3< 7.1

< 44< 6.2

12< 4.1

< 5< 95

< 5.712

< 130< 160

< 75 PF< 5

< 5.7< 4

< 6.5< 40

< 5.7< 12

< 4.2< 5.1

< 97< 5.8

< 4.8< 140

< 160< 77 PF

< 5.1< 5.8

< 4.1< 6.6

< 41< 5.8

< 70< 25

< 31< 580

< 35< 29

< 830< 990

< 460 PF< 31

< 35< 24

< 40< 250

< 35< 13

< 4.5< 5.6

< 100 N,J

< 6.3< 5.3

< 150 N,J

< 180 UJ,N

,J< 83 N

,J< 5.6

8< 4.4

< 7.2< 4.5

< 6.3< 12

< 4.5< 5.5

< 100 N,J

< 6.3< 5.2

< 150 N,J

< 180 UJ,N

,J< 82 N

,J< 5.5

< 6.3< 4.4

< 7.2< 4.4

< 6.3< 12

< 4.15.4

< 96 N,J

9.3< 4.8

< 140 N,J

< 160 N,J

< 76 N,J

< 5.1< 5.8

< 4< 6.6

< 4.15.8

110< 4

< 5< 93 N

,J< 5.6

< 4.7< 130 N

,J< 160 N

,J< 74 N

,J< 4.9

< 5.6< 3.9

< 6.4< 4

< 5.6< 11

< 3.9< 4.9

< 92< 5.5

< 4.6< 130

< 160< 72

< 4.9< 5.5

< 3.8< 6.3

< 3.9< 5.5

< 13< 4.7

< 5.8< 110

< 6.5< 5.4

< 150< 180

< 86 PF< 5.8

< 6.5< 4.6

< 7.4< 46

< 6.5< 12

< 4.3< 5.3

< 100< 6

< 5< 140

< 170< 79 PF

< 5.3< 6

< 4.2< 6.9

< 42< 6

< 12< 4.2

< 5.2< 98

< 5.9< 4.9

< 140< 170

< 78 PF< 5.2

< 5.9< 4.1

< 6.7< 42

< 5.9< 12

< 4.1< 5.1

< 96< 5.8

< 4.8< 140

< 160< 76 PF

< 5.1< 5.8

< 4< 6.6

< 41< 5.8

< 13< 4.6

< 5.7< 110 N

,J< 6.5

< 5.4< 150 N

,J< 180 N

,J< 85 N

,J< 5.7

< 6.5< 4.5

< 7.4< 4.6

< 6.5< 13

< 4.5< 5.6

< 100 N,J

< 6.3< 5.3

< 150 N,J

< 180 N,J

< 84 N,J

< 5.6< 6.3

< 4.4< 7.2

< 4.5< 6.3

< 11< 4.1

< 5< 190 N

,J< 5.7

< 4.8< 270 N

,J< 320 N

,J< 150 N

,J< 5

< 5.7< 4

< 6.5< 4

< 5.7< 12

7.5 j< 5.2

< 99< 5.9

14 j< 140

< 170< 78

< 5.2< 5.9

< 4.2< 6.8

< 42< 5.9

26< 4.2

< 5.2< 98

< 5.8< 4.9

< 140< 160

< 77< 5.2

< 5.8< 4.1

< 6.7< 41

< 5.856

< 4.2< 5.2

< 98< 5.8

< 4.9< 140

< 160< 77

< 5.2< 5.8

< 4.1< 6.7

< 41< 5.8

< 12< 4.4

< 5.4< 100

< 6.1< 5.1

< 140< 170

< 80< 5.4

< 6.1< 4.2

< 6.9< 43

< 6.1< 12

< 4.3< 5.3

< 100< 6

< 5< 140

< 170< 79 PF

< 5.3< 6

< 4.2< 6.8

< 42< 6

< 21 U< 2.1 U

< 4.2 U< 2.1 U

< 2.1 U< 2.1 U

< 2.1 U< 4.2 U

< 2.1 U< 2.1 U

< 2.1 U< 11

< 3.9< 4.8

< 91< 5.5

< 4.6< 130

< 160< 72 PF

< 4.8< 5.5

< 3.8< 6.3

< 39< 5.5

< 12< 4.3

< 5.2< 99

< 5.9< 5

< 140< 170

< 78 PF< 5.2

< 5.9< 4.2

< 6.8< 42

< 5.9< 20 U

< 2 U< 4.1 U

< 2 U< 2 U

< 2 U< 2 U

< 4.1 U< 2 U

< 2 U< 2 U

< 12< 4.3

< 5.3< 100 N

,J< 6

< 5< 140 N

,J< 170 U

J,N,J

< 79 N,J

< 5.3< 6

< 4.2< 6.8

< 4.2< 6

< 12< 4.3

< 5.2< 99 N

,J< 5.9

< 5< 140 N

,J< 170 U

J,N,J

< 78 N,J

< 5.2< 5.9

< 4.2< 6.8

< 4.2< 5.9

< 12< 4.1

< 5.1< 96 N

,J< 5.8

< 4.8< 140 N

,J< 160 N

,J< 76 N

,J< 5.1

< 5.8< 4

< 6.6< 4.1

< 5.8< 13

943

1200 N,J

13044

440 N,J

< 180 N,J

< 83 N,J

11028

9.2< 7.2

< 4.537

< 12< 4.3

< 5.3< 100 N

,J< 6

< 5< 140 N

,J< 170 N

,J< 79 N

,J< 5.3

9.2< 4.2

< 6.8< 4.2

< 6< 9.6

< 3.4< 4.2

< 80< 4.8

< 4< 110

< 140< 63

< 4.2< 4.8

< 3.4< 5.5

< 34< 4.8

< 7.9< 2.8

< 3.5< 66

< 4< 3.3

< 94< 110

< 52< 3.5

< 4< 2.8

< 4.5< 28

< 4< 7.9

< 2.8< 3.5

< 66< 4

< 3.3< 94

< 110< 52

< 3.5< 4

< 2.8< 4.5

< 28< 4

11< 2.9

< 3.6< 67

< 4< 3.4

< 95< 110

< 53< 3.6

< 4< 2.8

< 4.6< 28

< 4< 11

< 4.1< 5

< 95< 5.7

< 4.8< 140

< 160< 75

< 5< 5.7

< 4< 6.5

< 4< 5.7

< 11< 4.1

< 5< 95

< 5.7< 4.8

< 140< 160

< 75< 5

< 5.7< 4

< 6.5< 4

< 5.7< 11

< 3.9< 4.9

< 92< 5.5

< 4.6< 130

< 160< 72

< 4.9< 5.5

< 3.8< 6.3

< 3.9< 5.5

< 11< 4.1

< 5< 95

< 5.7< 4.8

< 140< 160

< 75< 5

< 5.7< 4

< 6.5< 40

< 5.7< 12

< 4.2< 5.2

< 98< 5.8

< 4.9< 140

< 160< 77

< 5.2< 5.8

< 4.1< 6.7

< 41< 5.8

< 12< 4.2

< 5.2< 98

< 5.8< 4.9

< 140< 160

< 77< 5.2

< 5.8< 4.1

< 6.7< 41

< 5.8< 12

< 4.2< 5.2

< 98< 5.8

< 4.9< 140

< 160< 77

< 5.2< 5.8

< 4.1< 6.7

< 41< 5.8

< 11< 4

< 5< 93

< 5.6< 4.7

< 130< 160

< 74< 4.9

< 5.6< 3.9

< 6.4< 40

< 5.6< 11

< 4< 5

< 93< 5.6

< 4.7< 130

< 160< 74

< 4.9< 5.6

< 3.9< 6.4

< 40< 5.6

< 13< 4.6

< 5.7< 110

< 6.4< 5.3

< 150< 180

< 84< 5.7

< 6.4< 4.5

< 7.3< 45

< 6.4< 12

< 4.4< 5.5

< 100< 6.2

< 5.2< 150

< 180< 82

< 5.5< 6.2

< 4.3< 7.1

< 44< 6.2

< 11< 4.1

< 5< 95 N

,J< 5.7

< 4.8< 140 N

,J< 160 N

,J< 75 N

,J< 5

< 5.7< 4

< 6.5< 4

< 5.7< 12

< 4.2< 5.2

< 98 N,J

< 5.8< 4.9

< 140 N,J

< 160 N,J

< 77 N,J

< 5.2< 5.8

< 4.1< 6.7

< 4.1< 5.8

Page 320: Table Proposed Cleanup Levels Groundwater · 10/21/2013  · Table 04 Summery of PrsllMnery Cost ES11motee for Soleening Feasibility Study Former Kest Property Carson, CA GeotFnlenGOneullanle

Table B-2Sub-Slab Soil Vapor Results

Former Kast Property

Carson, California

Residential Properties Sampled Through August 31, 2013

Page 88 of 235

Sample ID

AddressSam

ple Date

Sample Tim

eLocation

AnalyteU

nitsFrequency of D

etection

244305SVB305 244TH ST

2010-07-0116:06

Back244305SVH

305 244TH ST2012-10-18

14:50House

244305SVG305 244TH ST

2012-10-1815:00

Garage

244305SVB305 244TH ST

2012-10-2212:54

Back244305SVG

305 244TH ST2013-04-24

15:14G

arage244305SVH

305 244TH ST2013-04-24

15:14House

244305SVHD305 244TH ST

2013-04-2415:14

House244305SVB

305 244TH ST2013-04-24

15:58Back

244317SVH317 244TH ST

2011-01-2409:07

House244317SVG

317 244TH ST2011-01-24

09:51G

arage244317SVB

317 244TH ST2011-01-24

10:27Back

244317SVB317 244TH ST

2011-03-2415:44

Back244317SVBS

317 244TH ST2011-03-24

15:44Back

244317SVG317 244TH ST

2011-03-2415:58

Garage

244317SVH317 244TH ST

2011-03-2416:33

House244321SVH

321 244TH ST2010-11-18

08:54House

244321SVB321 244TH ST

2010-11-1809:36

Back244321SVBD

321 244TH ST2010-11-18

09:36Back

244321SVF321 244TH ST

2010-11-1810:13

Front244321SVB

321 244TH ST2013-03-22

09:59Back

244321SVBS321 244TH ST

2013-03-2209:59

Back244321SVH

321 244TH ST2013-03-22

09:59House

244321SVF321 244TH ST

2013-03-2210:33

Front244321SVFS

321 244TH ST2013-03-22

10:33Front

244321SVH321 244TH ST

2013-08-0209:31

House244321SVB

321 244TH ST2013-08-02

09:47Back

244321SVBS321 244TH ST

2013-08-0209:47

Back244321SVF

321 244TH ST2013-08-02

09:58Front

244327SVH327 244TH ST

2010-05-0513:40

House244327SVG

327 244TH ST2010-05-05

15:51G

arage244327SVB

327 244TH ST2010-05-05

16:39Back

244327SVB327 244TH ST

2013-02-1410:05

Back244327SVBD

327 244TH ST2013-02-14

10:05Back

244327SVH327 244TH ST

2013-02-1410:12

House244327SVG

327 244TH ST2013-02-14

10:39G

arage244327SVB

327 244TH ST2013-07-31

09:53Back

244327SVBD327 244TH ST

2013-07-3109:53

Back244327SVH

327 244TH ST2013-07-31

10:02House

244327SVG327 244TH ST

2013-07-3110:24

Garage

244331SVH331 244TH ST

2010-08-0413:23

House244331SVG

331 244TH ST2010-08-04

14:04G

arage244331SVB

331 244TH ST2010-08-04

14:40Back

244331SVH331 244TH ST

2012-08-3015:14

House244331SVG

331 244TH ST2012-08-30

15:50G

arage244331SVB

331 244TH ST2012-08-30

16:39Back

244331SVBD331 244TH ST

2012-08-3016:39

Back244331SVH

331 244TH ST2013-05-01

10:25House

244331SVG331 244TH ST

2013-05-0110:52

Garage

244331SVB331 244TH ST

2013-05-0111:14

Back244331SVBD

331 244TH ST2013-05-01

11:14Back

244337SVH337 244TH ST

2010-08-1614:11

House244337SVF

337 244TH ST2010-08-16

14:49Front

IsopropanolHexane

p/m-Xylene

C6-C8 Aliphatics

1,2,4-Trim

ethyl-benzene

HeptaneC8-C10

AliphaticsC10-C12

AliphaticsC5-C6

AliphaticsEthyl-

benzene

Cumene

(Isopropyl-benzene)

CyclohexaneFreon 11

Methylene

Chloride4-Ethyltoluene

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

UG

/M3

4.47%3.74%

3.12%2.72%

2.63%2.63%

2.54%2.01%

2.01%1.97%

1.89%1.89%

1.72%1.72%

1.60%

< 12< 4.4

< 5.5< 100 N

,J< 6.2

< 5.2< 150 N

,J< 180 N

,J< 82 N

,J< 5.5

< 6.2< 4.4

< 7.1< 4.4

< 6.2< 12

7.8< 5.2

< 98< 5.8

4.9< 140

< 160< 77

< 5.2< 5.8

< 4.1< 6.7

< 41< 5.8

< 11< 4.1

< 5< 95

< 5.7< 4.8

< 140< 160

< 75< 5

< 5.7< 4

< 6.5< 40

< 5.7< 12

< 4.2< 5.2

< 98< 5.8

< 4.9< 140

< 160< 77

< 5.2< 5.8

< 4.1< 6.7

< 41< 5.8

< 12< 4.1

< 5.1< 96

< 5.8< 4.8

< 140< 160

< 76 PF< 5.1

< 5.8< 4

< 6.6< 41

< 5.8< 12

< 4.5< 5.6

< 100< 6.3

< 5.2< 150

< 180< 83 PF

< 5.6< 6.3

< 4.4< 7.2

< 44< 6.3

< 12< 4.5

< 5.6< 100

< 6.3< 5.2

< 150< 180

< 83 PF< 5.6

< 6.3< 4.4

< 7.2< 44

< 6.3< 11

< 4< 5

< 94< 5.6

< 4.7< 130

< 160< 74 PF

< 5< 5.6

< 3.9< 6.4

< 40< 5.6

< 11< 4

< 5< 93

< 5.6< 4.7

< 130< 160

< 74< 4.9

< 5.6< 3.9

< 6.4< 4

< 5.6< 11

< 4< 4.9

< 93< 5.6

< 4.6< 130

< 160< 73

< 4.9< 5.6

< 3.9< 6.3

< 3.9< 5.6

< 46< 16

< 20< 380

< 23< 19

< 540< 650

< 300< 20

< 23< 16

< 2623

< 23< 12

< 4.2< 5.2

< 98< 5.8

< 4.9< 140

< 160< 77

< 5.2< 5.8

< 4.1< 6.7

< 4.1< 5.8

< 3.5< 1.8

< 3.5< 1.8

< 1.8< 1.8

< 1.8< 3.5

< 1.8< 1.8

< 1.8< 11

< 3.9< 4.9

< 92< 5.5

< 4.6< 130

< 160< 72

< 4.9< 5.5

< 3.8< 6.3

< 3.9< 5.5

< 11< 4.1

< 5< 95

< 5.7< 4.8

< 140< 160

< 75< 5

< 5.7< 4

< 6.5< 4

< 5.7< 12

< 4.1< 5.1

< 96< 5.8

< 4.8< 140

< 160< 76

< 5.1< 5.8

< 4< 6.6

< 4.1< 5.8

< 11< 3.8

< 4.7< 88

< 5.3< 4.4

< 120< 150

< 70< 4.7

< 5.3< 3.7

< 6.1< 3.8

< 5.3< 10

< 3.8< 4.6

< 87< 5.2

< 4.4< 120

< 150< 69

< 4.6< 5.2

< 3.7< 6

< 3.7< 5.2

< 11< 4.1

< 5< 95

< 5.7< 4.8

< 140< 160

< 75< 5

< 5.7< 4

< 6.5< 4

< 5.7< 11

< 4< 4.9

< 93< 5.6

< 4.6< 130

< 160< 73

< 4.9< 5.6

< 3.9< 6.4

< 39< 5.6

< 19 U< 1.9 U

< 3.7 U< 1.9 U

< 1.9 U< 1.9 U

< 1.9 U< 3.7 U

< 1.9 U< 1.9 U

< 1.9 U< 12

< 4.3< 5.3

< 100< 6

< 5< 140

< 170< 79

< 5.3< 6

< 4.2< 6.9

< 42< 6

< 12< 4.3

< 5.3< 100

< 6< 5

< 140< 170

< 79< 5.3

< 6< 4.2

< 6.9< 42

< 6< 20 U

< 2 U< 4.1 U

< 2 U< 2 U

< 2 U< 2 U

< 4.1 U< 2 U

< 2 U< 2 U

< 10< 3.7

< 4.6< 87

< 5.2< 4.3

< 120< 150

< 69< 4.6

< 5.2< 3.6

< 6< 37

< 5.2< 11

< 4.1< 5

< 95< 5.7

< 4.8< 140

< 160< 75

< 5< 5.7

< 4< 6.5

< 40< 5.7

< 21 U< 2.1 U

< 4.1 U< 2.1 U

< 2.1 U< 2.1 U

< 2.1 U< 4.1 U

< 2.1 U< 2.1 U

< 2.1 U< 12

< 4.1< 5.1

< 96< 5.8

< 4.8< 140

< 160< 76

< 5.1< 5.8

< 4< 6.6

< 41< 5.8

< 12< 4.2

< 5.2< 98 N

,J< 5.9

< 4.9< 140 N

,J< 170 N

,J< 77 N

,J< 5.2

< 5.9< 4.1

< 6.7< 4.2

< 5.9< 12

< 4.3< 5.2

< 99 N,J

< 5.9< 5

< 140 N,J

< 170 N,J

< 78 N,J

< 5.2< 5.9

< 4.2< 6.8

< 4.2< 5.9

< 11< 4.1

< 5< 95 N

,J< 5.7

< 4.8< 140 N

,J< 160 N

,J< 75 N

,J< 5

< 5.7< 4

< 6.5< 4

< 5.7< 12

< 4.2< 5.2

< 98< 5.8

< 4.9< 140

< 160< 77

< 5.2< 5.8

< 4.1< 6.7

< 41< 5.8

< 12< 4.3

< 5.2< 99

< 5.9< 5

< 140< 170

< 78< 5.2

< 5.9< 4.2

< 6.8< 42

< 5.9< 12

< 4.2< 5.2

< 98< 5.8

< 4.9< 140

< 160< 77

< 5.2< 5.8

< 4.1< 6.7

< 41< 5.8

< 12< 4.3

< 5.2< 99

< 5.9< 5

< 140< 170

< 78< 5.2

< 5.9< 4.2

< 6.8< 42

< 5.9< 11

< 4< 4.9

< 93< 5.6

< 4.6< 130

< 160< 73

< 4.9< 5.6

< 3.9< 6.4

< 39< 5.6

< 11< 4

< 4.9< 93

< 5.6< 4.6

< 130< 160

< 73< 4.9

< 5.6< 3.9

< 6.3< 39

< 5.6< 12

< 4.2< 5.2

< 99< 5.9

< 4.9< 140

< 170< 78

< 5.2< 5.9

< 4.1< 6.8

< 42< 5.9

< 12< 4.2

< 5.1< 97

< 5.8< 4.8

< 140< 160

< 76< 5.1

< 5.8< 4.1

< 6.6< 41

< 5.8< 12

< 4.2< 5.2

< 98 N,J

< 5.9< 4.9

< 140 N,J

< 170 N,J

< 77 N,J

< 5.2< 5.9

< 4.1< 6.7

< 4.2< 5.9

< 12< 4.1

< 5.1< 96 N

,J< 5.8

< 4.8< 140 N

,J320 N

,J< 76 N

,J< 5.1

15< 4

< 6.6< 4.1

< 5.8< 12

< 4.2< 5.1

< 97 N,J

< 5.8< 4.8

< 140 N,J

< 160 N,J

< 77 N,J

< 5.1< 5.8

< 4.1< 6.6

< 4.1< 5.8

145.1

< 4.7< 88

< 5.3< 4.4

< 120< 150

< 70< 4.7

< 5.3< 3.7

< 6.1< 38

< 5.314

13< 5.6

< 100< 6.3

8.6< 150

< 180< 84

< 5.6< 6.3

< 4.4< 7.2

< 45< 6.3

< 12< 4.4

< 5.4< 100

< 6.1< 5.1

< 140< 170

< 80< 5.4

< 6.1< 4.2

< 6.9< 43

< 6.1< 12

< 4.4< 5.4

< 100< 6.1

< 5.1< 140

< 170< 80

< 5.4< 6.1

< 4.2< 6.9

< 43< 6.1

< 12< 4.2

< 5.1< 97

< 5.8< 4.8

< 140< 160

< 76< 5.1

< 5.8< 4.1

< 6.6< 41

< 5.8< 11

< 4< 5

< 94< 5.6

< 4.7< 130

< 160< 74

< 5< 5.6

< 4< 6.5

< 40< 5.6

< 11< 4

< 5< 94

< 5.6< 4.7

< 130< 160

< 74< 5

< 5.6< 4

< 6.5< 40

< 5.6< 11

< 4.1< 5

< 95< 5.7

< 4.8< 140

< 160< 75

< 5< 5.7

< 4< 6.5

< 40< 5.7

< 11< 4

< 5< 94 N

,J< 5.6

< 4.7< 130 N

,J< 160 N

,J< 74 N

,J< 5

< 5.6< 3.9

< 6.4< 4

< 5.6< 11

< 4.1< 5

< 95 N,J

< 5.7< 4.8

< 140 N,J

< 160 N,J

< 75 N,J

< 5< 5.7

< 4< 6.5

< 4< 5.7