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
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
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
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
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.(
Geosyntec consultants
FIGURES
SB04841 Revised SSCU Report Final 21- Oct- 2013.docx
Harbor UCLA Medical Center
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Former Kan Property Carson, California
Geosyntec° consultants
Santa Barbara October 2013
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GZOSYCILCCc) re x9ulsuó
Summary olyax-momron Concentrations lnsmi
kimernanvmperry
Figure
6d <=10000mglkg >100000mg/kg ma Amhara ,f. onabe,lolr
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
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
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
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
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
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':
aoE} , b
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24732
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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
LAND WA
MONTEREY DR
E24427
Wáß
ttfe
L1+3 °vXC-a`+k7.
íX'CJty `>olot:
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rye f YK%f
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0
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9
E 248TH ST
tZ
p o 24512
24437
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2471 ST
24926
24742
243129 e ®o 24733
i7.<ìï'F3rrh. fa.'.
baU
?'Y115
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
LAND WA\
MONTEREY DR
Lne 24412
4 4'416
2
2 506
513
2 5
24 32
Co 24403
o 13
¢4418
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4523
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24502
o 24812
2409
19
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c
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c 24627
3 0
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° 24708 4707 24766 0
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°2
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29
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co o a
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6
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n
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4
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J C
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o °
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°
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2
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t 0 247r3 IcPAY,(. i,`F .
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"
i
24733 ,FY 4i ILI! Alm r'.
°24608
8
Le0end
Sub -Slab Soil Vapor IndoorAir { o Non -Detect (ND) _I<= 25th Percentile (< 0.1 pg /m')
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
o o
P o
Ó
1
A A
1
1 I I I I
1,2-DOA BEN CT CF ER m0-X NAßH o-X POE TOL
Site Data Ouiller
90^ percentile
76s percentile
501, enrcimale
26P percentile
o r Analyte Literature Values
A A Maximum (lower / upper)
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
I I I I I I I 1 I
1;2-OCA 1,4-0 0E1 BEN CT CF 6n rn,p-% PlAPH o-X PCE TOL
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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
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
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
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
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
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
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)
SB0484\SSCGs Appendix A i October 2013
APPENDIX A
Soil, Sub-Slab Soil Vapor, and Soil Vapor Site-Specific Cleanup Goal Derivation
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
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
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.
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.
SB0484\SSCGs Appendix A A-3 October 2013
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
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
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)
SB0484\SSCGs Appendix A A-6 October 2013
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.
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);
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:
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.
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
××
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
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);
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.
SB0484\SSCGs Appendix A A-14 October 2013
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:
SB0484\SSCGs Appendix A A-15 October 2013
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.
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
SB0484\SSCGs Appendix A A-17 October 2013
(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).
SB0484\SSCGs Appendix A A-18 October 2013
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
SB0484\SSCGs Appendix A A-19 October 2013
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);
SB0484\SSCGs Appendix A A-20 October 2013
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.
SB0484\SSCGs Appendix A A-21 October 2013
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:
SB0484\SSCGs Appendix A A-22 October 2013
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)
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:
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
SB0484\SSCGs Appendix A A-25 October 2013
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
SB0484\SSCGs Appendix A A-26 October 2013
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.
SB0484\SSCGs Appendix A A-27 October 2013
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
SB0484\SSCGs Appendix A A-28 October 2013
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
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.
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
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
SB0484\SSCGs Appendix A A-32 October 2013
6.0 REFERENCES
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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.
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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.
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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.
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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.
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.
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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
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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.
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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.
SB0484\SSCGs_AppendixA_Oct2013.docx October 2013
TABLES
Geosyntec C
onsultantsP
age 1 of 1S
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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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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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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
F×
×
××
××
××
()2
1sw
OA
-soil
OA
-SV
CF
CF
K H
'V
FV
F×
××
=
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^
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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
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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
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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
Geosyntec Consultants Page 1 of 1 SSCGs_AppATables_Oct2013.doc
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
Geosyntec Consultants Page 1 of 1 SSCGs_AppATables_Oct2013.doc
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
Geosyntec Consultants Page 1 of 1 SSCGs_AppATables_Oct2013.doc
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
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*
Geosyntec Consultants Page 1 of 2 SSCGs_AppA Tables_Oct2013.xlsx
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.
Geosyntec Consultants Page 2 of 2 SSCGs_AppA Tables_Oct2013.xlsx
Geosyntec Consultants Page 1 of 2 SSCGs_AppA Tables_Oct2013.xlsx
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
Geosyntec Consultants Page 2 of 2 SSCGs_AppA Tables_Oct2013.xlsx
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
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)
Geosyntec Consultants Page 1 of 2 SSCGs_AppA Tables_Oct2013.xlsx
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.
Geosyntec Consultants Page 2 of 2 SSCGs_AppA Tables_Oct2013.xlsx
Geosyntec Consultants Page 1 of 2 SSCGs_AppA Tables_Oct2013.xlsx
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
Geosyntec Consultants Page 2 of 2 SSCGs_AppA Tables_Oct2013.xlsx
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
Geosyntec Consultants Page 1 of 1 SSCGs_AppA Tables_Oct2013.xlsx
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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SSCGs_AppA Tables_Oct2013.xlsx
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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SSCGs_AppA Tables_Oct2013.xlsx
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
Geosyntec Consultants Page 1 of 1 SSCGs_AppA Tables_Oct2013.xlsx
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
SB0484\SSCGs_AppendixA_Oct2013.docx October 2013
ATTACHMENTS
SB0484\SSCGs_AppendixA_Oct2013.docx October 2013
ATTACHMENT A1 SSCG Derivation Spreadsheets
Geosyntec C
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
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
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)
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
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
Geosyntec C
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
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
Geosyntec C
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)
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
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)
Geosyntec C
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
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
SB0484\SSCGs_AppendixA_Oct2013.docx October 2013
ATTACHMENT A2 Background Evaluation
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.
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.
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
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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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
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Tables
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
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
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
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
SB0484_SSCG_Appendix A_Attachment A2.docx February 2013
Figures
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
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
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
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)
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
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
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
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
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
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
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
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
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
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
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
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)
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
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%
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
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
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
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
SB0484\SB0484_SSCG_Appendix A_Attachment A2.docx February 2013
ProUCL Output
1
2
3
4
5
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7
8
9
10
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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
54
55
56
57
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60
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62
63
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66
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68
69
70
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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
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
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135
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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
160
161
162
163
164
165
166
167
168
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172
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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
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
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236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
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
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
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293
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297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
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
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
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351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
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
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
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
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
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
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
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
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
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
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
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
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
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
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
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
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
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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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
955
956
957
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959
960
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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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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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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)
SB0484\SSCGs_AppendixA_Oct2013.docx October 2013
ATTACHMENT A3 Soil Leaching to Groundwater SSCG Derivation Spreadsheets
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)
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)
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)
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)
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)
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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)
B-1
APPENDIX B Vapor Intrusion Evaluation
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.
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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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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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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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
APPENDIX B Vapor Intrusion Evaluation
B-17
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.
APPENDIX B Vapor Intrusion Evaluation
B-18
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
APPENDIX B Vapor Intrusion Evaluation
B-19
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.
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.
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.
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
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
APPENDIX B Vapor Intrusion Evaluation
TABLES
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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