appendix a figures (17 pages) 1 site location 2 14th avenue

14th Avenue Ditch Area Final Interim Remedial Investigation Report

APPENDIX A

FIGURES

(17 Pages)

1 Site Location

2 14th Avenue Ditch Area Layout

3 Current Main Plant Layout

4 Tetra Tech and URS Corporation Sampling Locations

5 URS Corporation On-site Soil Sampling Results (0 to 5 feet bgs)

6 14th Avenue Ditch Sediment Sampling Results (0 to 3 inches bsw-si)

7 14th Avenue Ditch Subsurface Soil Sampling Results (6 to 12 inches bsw-si)

8 14th Avenue Ditch Subsurface Soil Sampling Results (12 to 24 inches bsw-si)

9 On-site Surface Soil Sampling Results (0 to 6 inches bgs)

10 On-site Subsurface Soil Sampling Results (5 to 6 feet bgs)

11 On-site Subsurface Soil Sampling Results (3 to 3.5 and 6 to 7 feet bgs)

12 Residential/Commercial Surface Soil Sampling Results (0 to 6 inches bgs)

13 Residential/Commercial Subsurface Soil Sampling Results (5 to 6 feet bgs)

14 Residential/Commercial Subsurface Soil Sampling Results (6 to 7 feet bgs)

15 Interim Remedial Investigation Groundwater Sampling Results

16 Human Health Conceptual Site Model

17 14th Avenue Ditch Surface Water Sample Locations

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Former Plant Site

Former Pine Yard

14th Avenue Ditch AreaInterim Remedial Investigation

2300 14th Avenue NorthColumbus, Lowndes County, Mississippi

Map Source:USGS 7.5 Minute Topographic Quadrangle Map:Columbus North, MS 1987.

Figure 1Site Location

Mississippi

Lowndes County

Alabama

Louisiana

Arkansas

Tennessee

Florida

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Feet1:24,000

Property Boundary

Legend

14th Avenue Ditch Area

14TH AVENUE NORTH

N2

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Outfall #003

Outfall #004

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Black-TieStorage

Area

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Figure 214th Avenue Ditch Area Layout



Note:NPDES National Pollution Discharge

Elimination System

Map Sources:Aerial Imagery, NAIP\2010 1m Color.Street Names, StreetMap USA

1:9,600

1

Legend

!( NPDES Outfall Location

Drainage Ditch Number

Property Boundary

14th Avenue Ditch


Closed Surface Impoundments

Former Drip Pad

Main Drainage Ditch

Non Perennial Drainage Ditch

Railroad Tracks

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FormerWastePile 1

FormerWastePile 2

Former OfficeBuilding Western

Entrance

GroundwaterTreatment

System Building

Former Green Tie Storage

Former Black Tie Storage

FormerBlack TieStorage

Former GreenTie Storage

FormerCreosoteRecovery/

Waste WaterTreatment

FormerProduction

Area

Cemetery

Plant Site

Pine Yard

Source: Bing Maps Aerial Imagery Web Mapping Service, 2011.

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Figure 3Current Plant Site Layout

Legend

Railroad Track

Property Boundary

Closed Surface Impoundments

Former Drip Pad

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14AD-FA01-SD-A14AD-FA01-SD-A-DUP14AD-FA01-SB-B14AD-FA01-SB-C






14AD-FA07-SD-A14AD-FA07-SB-B14AD-FA07-SB-B-DUP14AD-FA07-SB-C14AD-FA07-SB-C-DUP










14AD-RP02-SS-A14AD-RP02-SB-B14AD-RP02-SB-C14AD-RP02-GW14AD-RP02-GW-DUP

14AD-RP04-SS-A14AD-RP04-SB-B14AD-RP04-SB-C14AD-RP04-GW

14AD-RP05-SS-A14AD-RP05-SB-B14AD-RP05-SB-C14AD-RP01-SS-A

14AD-RP01-SB-B14AD-RP01-SB-C

14AD-RP03-SS-A14AD-RP03-SS-A-DUP14AD-RP03-SB-B14AD-RP03-SB-C

14AD-RP06-SS-A14AD-RP06-SB-B14AD-RP06-SB-C14AD-RP06-GW

14AD-KM08-SS-A14AD-KM08-SS-A-DUP14AD-KM08-SB-B14AD-KM08-SB-C

14AD-KM07-SS-A14AD-KM07-SB-B14AD-KM07-SB-C







DB6DB3 DB8

DB10 DB12

DB11

DB1

DB2

DB7

DB5

DB4 DB9

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Figure 4Tetra Tech and URS Corporation

Sampling Locations



1:1,800

Image Source: BING Web Map Server, 2011.

Sample Nomenclature Notes:

All Samples## - Station number14AD - 14th Avenue Ditch AreaBgs - Below ground surfaceDUP - DuplicateSB - Subsurface soilSS - Surface soil

14th Avenue Ditch SamplesA - Layer A, 0 to 6 inches bsw-siB - Layer B, 48 to 60 inches bsw-siBsw-si - Below surface water-sediment interfaceC - Layer C, 60 to 72 inches bsw-siFA - Fourteenth AvenueSD - Sediment

Residential / Commercial SamplesA - Layer A, 0 to 6 inches bgsB - Layer B, 48 to 60 inches bgsC - Layer C, 60 to 72 inches bgsGW - GroundwaterRP - Residential property

On-site SamplesA - Layer A, 0 to 6 inches bgsB - Layer B, 48 to 60 inches bgsC - Layer C, 60 to 72 inches bgsKM - Former Kerr-McGee

Legend

Residential / Commercial Properties

">) Groundwater, Surface andSubsurface Soil Sampling Location

" ) Surface and SubsurfaceSoil Sampling Location

14th Avenue Ditch

On-site

") Previous URS CorporationSample Location with ID

Property Boundary


"#) Surface and SubsurfaceSampling Location

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FA-15

FA-16

FA-17

FA-18

KM-08

KM-03KM-02KM-01KM-04 KM-05

KM-06 KM-07

Figure 5URS Corporation On-site

Soil Sampling Results(0 to 5 feet bgs)




Benzo(a)pyrene 41 µg/kg

DB1


DB2

DB3

No consitiuents exceeded EPA RSLs Benzo(a)pyrene 49.6 µg/kg

DB4

DB5

No consitiuents exceeded EPA RSLs

DB6



DB7

DB8


DB9



DB11

Benz(a)anthracene 298 µg/kg 99.7 µg/kg

Benzo(a)pyrene 183 µg/kg 104 µg/kg

Dibenz(a,h)anthracene 28.9 µg/kg 18.6 µg/kg

DB12 DB12 DUP

0 75 150Feet

/1:1,800


Dibenz(a,h)anthracene 46 µg/kg

DB10

Notes:## Station identification numberbgs Below ground surfaceDB Direct boringDUP DuplicateEPA U. S. Environmental Protection AgencyFA Fourteenth AvenueKM Former Kerr-McGee Wood Treating Facilityµg/kg Micrograms per kilogramµg/L Micrograms per literRSL EPA Regional Screening Levels for residential

soil, April 2012RP Residential propertyBOLD Value exceeds the EPA RSL for residential soil

Legend

14th Avenue Ditch


On-site


Groundwater, Surface andSubsurface Soil Sampling LocationSurface and SubsurfaceSoil Sampling Location


") Previous URS Sample Locations

Property Boundary

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Figure 614th Avenue Ditch Sediment

Sampling Results(0 to 3 inches bsw-si)



1:1,800


Benzo(a)anthracene 500 µg/kg


Benzo(b)fluoranthene 1,120 µg/kg

Dibenz(a,h)anthracene 114 J µg/kg

Indeno(1,2,3-cd)pyrene 406 µg/kg

Arsenic 3.93 mg/kg

14AD-FA00-SD-A

Benzo(a)anthracene 3,620 µg/kg 3,490 µg/kg

Benzo(a)pyrene 2,200 µg/kg 2,900 µg/kg

Benzo(b)fluoranthene 4,360 µg/kg 6,380 µg/kg

Benzo(k)fluoranthene 1,540 J µg/kg 2,220 µg/kg

Dibenz(a,h)anthracene 228 J µg/kg 345 J µg/kg

Indeno(1,2,3-cd)pyrene 727 J µg/kg 1,150 J µg/kg

TEQ WHO2005 ND=01

279 pg/g 243 pg/g

TEQ WHO2005 ND=0.52

279 pg/g 243 pg/g

Arsenic 2.83 mg/kg 2.16 mg/kg

14AD-FA01-SD-A 14AD-FA01-SD-A-DUP

Benzo(a)pyrene 92.1 J µg/kg

Benzo(b)fluoranthene 167 J µg/kg

Arsenic 1.71 mg/kg

14AD-FA02-SD-A


Arsenic 0.88 mg/kg

14AD-FA03-SD-A

Benzo(a)anthracene 383 J µg/kg

Benzo(a)pyrene 317 J µg/kg

Benzo(b)fluoranthene 651 µg/kg

Dibenz(a,h)anthracene 40.1 J µg/kg

Arsenic 1.77 mg/kg

14AD-FA04-SD-A



Arsenic 3.86 mg/kg

14AD-FA05-SD-A





Indeno(1,2,3-cd)pyrene 201 J µg/kg

Arsenic 1.27 mg/kg

14AD-FA06-SD-A






Arsenic 2.24 mg/kg

14AD-FA07-SD-A

Benzo(a)anthracene 4,910 µg/kg

Benzo(a)pyrene 2,040 µg/kg




Arsenic 1.52 mg/kg

14AD-FA08-SD-A





Arsenic 1.48 mg/kg

14AD-FA09-SD-A






Arsenic 3.11 mg/kg

14AD-FA10-SD-A






Arsenic 1.75 mg/kg

14AD-FA11-SD-A





Arsenic 3.00 mg/kg

14AD-FA12-SD-A






Arsenic 4.59 mg/kg

14AD-FA13-SD-A






Arsenic 1.11 J+ mg/kg

14AD-FA14-SD-A



Arsenic 2.10 mg/kg

14AD-FA15-SD-A



Arsenic 13.5 mg/kg

14AD-FA16-SD-A






Arsenic 2.93 mg/kg

14AD-FA17-SD-A






Arsenic 3.96 mg/kg

14AD-FA18-SD-A

Notes:1 Value listed is the toxicity equivalent using the

2005 World Health Organization toxicity factorsand using a zero value for non-detects.

2 Value listed is the toxicity equivalent using the2005 World Health Organization toxicity factorsand using a 0.5 value for non-detects.

## Station identification number14AD 14th Avenue Ditch AreaA 0 to 3 inches bsw-sibws-si Below surface water-sediment interfaceDUP DuplicateEPA U. S. Environmental Protection AgencyFA Fourteenth AvenueJ The analyte was positively identified; the

associated value is the approximateconcentration of the analyte in the sample.

J+ The analyte was positively identified; theassociated value is the approximateconcentration of the analyte in the sample andmay be biased high.

µg/kg Micrograms per kilogrammg/kg Milligrams per kilogrampg/g Picograms per gramRSL EPA Regional Screening Levels for residential

soil, April 2012SD SedimentBOLD Value exceeds the EPA RSL for residential soil

Legend

14th Avenue Ditch


Property Boundary

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Figure 714th Avenue Ditch Subsurface Soil

Sampling Results(6 to 12 inches bsw-si)



1:1,800







Arsenic 2.01 mg/kg

14AD-FA00-SB-B




Benzo(k)fluoranthene 3,770 µg/kg


Indeno(1,2,3-cd)pyrene 1,550 J µg/kg

TEQ WHO2005 ND=01

540 pg/g

TEQ WHO2005 ND=0.52

541 pg/g

Arsenic 2.85 mg/kg

14AD-FA01-SB-B




Arsenic 2.43 mg/kg

14AD-FA02-SB-B



14AD-FA03-SB-B





Arsenic 2.08 mg/kg

14AD-FA04-SB-B




Arsenic 10.7 mg/kg

14AD-FA05-SB-B





Arsenic 1.72 mg/kg

14AD-FA06-SB-B

Benzo(a)anthracene 6,660 J µg/kg 414 J µg/kg

Benzo(a)pyrene 3,830 J µg/kg 354 J µg/kg

Benzo(b)fluoranthene 7,860 J µg/kg 760 J µg/kg

Dibenz(a,h)anthracene 424 J µg/kg 54.6 J µg/kg

Indeno(1,2,3-cd)pyrene 1,230 J µg/kg 173 J µg/kg

Arsenic 0.86 J+ mg/kg 0.80 J+ mg/kg

14AD-FA07-SB-B-DUP14AD-FA07-SB-B






TEQ WHO2005 ND=02

173 pg/g

TEQ WHO2005 ND=0.53

174 pg/g


14AD-FA08-SB-B



Arsenic 1.60 mg/kg

14AD-FA09-SB-B






Arsenic 2.00 mg/kg

14AD-FA10-SB-B






Arsenic 4.07 mg/kg

14AD-FA11-SB-B




Dibenz(a,h)anthracene 1,150 J µg/kg

Indeno(1,2,3-cd)pyrene 3,380 J µg/kg

Arsenic 1.63 mg/kg

14AD-FA12-SB-B



Benzo(b)fluoranthene 1,470 J µg/kg



Arsenic 3.11 mg/kg

14AD-FA13-SB-B





14AD-FA14-SB-B





14AD-FA15-SB-B

Benzo(a)anthracene 4,000 J- µg/kg

Benzo(a)pyrene 2,720 J- µg/kg

Benzo(b)fluoranthene 5,180 J- µg/kg


Indeno(1,2,3-cd)pyrene 1,560 µg/kg

Arsenic 3.40 mg/kg

14AD-FA16-SB-B






Arsenic 2.58 mg/kg

14AD-FA17-SB-B

Legend

14th Avenue Ditch


Property Boundary




## Station identification number14AD 14th Avenue Ditch AreaB 6 to 12 inches bsw-sibws-si Below surface water-sediment interfaceDUP DuplicateEPA U. S. Environmental Protection AgencyFA Fourteenth AvenueJ The analyte was positively identified; the



J- The analyte was positively identified; theassociated value is the approximateconcentration of the analyte in the sample andmay be biased low.


soil, April 2012SB Subsurface soilBOLD Value exceeds the EPA RSL for residential soil






TEQ WHO2005 ND=01

5.83 pg/g

TEQ WHO2005 ND=0.52

11.1 pg/g

Arsenic 3.55 mg/kg

14AD-FA18-SB-B

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Figure 814th Avenue Ditch

Subsurface Soil Sampling Results(12 to 24 inches bsw-si)



1:1,800




Benzo(b)fluoranthene 1,000 J µg/kg



Arsenic 5.63 mg/kg

14AD-FA00-SB-C

Benzo(a)anthracene 9,550 J- µg/kg

Benzo(a)pyrene 4,280 J- µg/kg

Benzo(b)fluoranthene 7,720 J- µg/kg

Benzo(k)fluoranthene 3,270 J- µg/kg

Dibenz(a,h)anthracene 427 J- µg/kg

Indeno(1,2,3-cd)pyrene 1,230 J- µg/kg

Naphthalene 19,200 J- µg/kg

TEQ WHO2005 ND=01

463 pg/g

TEQ WHO2005 ND=0.52

477 pg/g

Arsenic 2.12 mg/kg

14AD-FA01-SB-C





14AD-FA03-SB-C




Arsenic 2.37 mg/kg

14AD-FA04-SB-C Benzo(a)anthracene 174 J µg/kg




Arsenic 1.77 mg/kg

14AD-FA06-SB-C

Benzo(a)anthracene 462 J µg/kg 834 J µg/kg

Benzo(a)pyrene 372 J µg/kg 674 J µg/kg

Benzo(b)fluoranthene 684 J µg/kg 1,470 J µg/kg

Dibenz(a,h)anthracene 43.3 J µg/kg 84.9 J µg/kg

Indeno(1,2,3-cd)pyrene 159 J µg/kg 255 J µg/kg


14AD-FA07-SB-C 14AD-FA07-SB-C-DUP






TEQ WHO2005 ND=01

179 pg/gTEQ WHO2005 ND=0.5

2180 pg/g

14AD-FA08-SB-C




Arsenic 0.54 mg/kg

14AD-FA09-SB-C


Arsenic 2.20 mg/kg

14AD-FA10-SB-C






Arsenic 1.71 mg/kg

14AD-FA11-SB-C






14AD-FA12-SB-C





Arsenic 3.60 J mg/kg

14AD-FA13-SB-C



14AD-FA14-SB-C





Arsenic 2.00 mg/kg

14AD-FA15-SB-C



Arsenic 2.96 mg/kg

14AD-FA16-SB-C





Arsenic 9.59 mg/kg

14AD-FA17-SB-C




Arsenic 5.90 mg/kg

14AD-FA18-SB-C

Legend

14th Avenue Ditch


Property Boundary




## Station identification number14AD 14th Avenue Ditch Areabws-si Below surface water-sediment interfaceC 12 to 24 inches bsw-siDUP DuplicateEPA U. S. Environmental Protection AgencyFA Fourteenth AvenueJ The analyte was positively identified; the



J- The analyte was positively identified; theassociated value is the approximateconcentration of the analyte in the sample andmay be biased low.



TEQ WHO2005 ND=0.52

6.39 pg/g

Arsenic 2.07 mg/kg

14AD-FA02-SB-C

TEQ WHO2005 ND=01

40.7 pg/g

TEQ WHO2005 ND=0.52

64 pg/g

Arsenic 5.05 mg/kg

14AD-FA05-SB-C

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Figure 9On-site

Surface Soil Sampling Results(0 to 6 inches bgs)









Pentachlorophenol 2,840 J µg/kg

Arsenic 7.87 mg/kg

14AD-KM01-SS-A






Arsenic 1.93 mg/kg

14AD-KM02-SS-A







Arsenic 4.28 mg/kg

14AD-KM03-SS-A




Benzo(k)fluoranthene 2,570 µg/kg


TEQ WHO2005 ND=01

138 pg/g

TEQ WHO2005 ND=0.52

139 pg/g

Arsenic 14.9 mg/kg

14AD-KM04-SS-A







Arsenic 3.38 mg/kg

14AD-KM05-SS-A







Arsenic 3.20 mg/kg

14AD-KM06-SS-A






Arsenic 2.83 mg/kg

14AD-KM07-SS-A

/0 75 150

Feet

1:1,800




## Station identification number14AD 14th Avenue Ditch AreaA 0 to 6 inches bgsbgs Below ground surfaceDUP DuplicateEPA U. S. Environmental Protection AgencyJ The analyte was positively identified; the



KM Former Kerr-McGee Wood Treating Facilityµg/kg Micrograms per kilogrammg/kg Milligrams per kilogrampg/g picograms per gramRSL EPA Regional Screening Levels for residential

soil, April 2012SS Surface soilU The analyte was analyzed for, but was not

detected at or above the associated value(reporting limit).

BOLD Value exceeds the EPA RSL for residential soil

Legend


Property Boundary

On-site

Benzo(a)anthracene 74,300 J µg/kg 22,900 J µg/kg

Benzo(a)pyrene 75,900 J µg/kg 28,300 J µg/kg

Benzo(b)fluoranthene 180,000 J µg/kg 67,400 J µg/kg

Dibenz(a,h)anthracene 19,000 J µg/kg 8,120 J µg/kg

Indeno(1,2,3-cd)pyrene 57,100 J µg/kg 25,300 J µg/kg

Pentachlorophenol 91,800 U µg/kg 8,570 J µg/kg


14AD-KM08-SS-A 14AD-KM08-SS-A-DUP

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Figure 10On-site Subsurface

Soil Sampling Results(5 to 6 feet bgs)



1:1,800


Arsenic 1.04 mg/kg

14AD-KM01-SB-B






Arsenic 1.36 mg/kg

14AD-KM02-SB-B


Arsenic 0.57 mg/kg

14AD-KM03-SB-B


14AD-KM04-SB-B

Arsenic 1.18 mg/kg

14AD-KM05-SB-B

Arsenic 0.49 mg/kg

14AD-KM06-SB-B

Arsenic 0.52 mg/kg

14AD-KM07-SB-B



Arsenic 1.74 mg/kg

14AD-KM08-SB-B

Legend


Property Boundary

On-site

Notes:## Station identification number14AD 14th Avenue Ditch AreaB 5 to 6 feet bgsbgs Below ground surfaceEPA U. S. Environmental Protection AgencyJ The analyte was positively identified; the



KM Former Kerr-McGee Wood Treating Facilityµg/kg Micrograms per kilogrammg/kg Milligrams per kilogramRSL EPA Regional Screening Levels for residential


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Figure 11On-site

Subsurface Soil Sampling Results(3 to 3.5 and 6 to 7 feet bgs)



1:1,800


Arsenic 1.06 mg/kg

14AD-KM01-SB-C

Arsenic 1.37 mg/kg

14AD-KM02-SB-C







Arsenic 4.56 mg/kg

14AD-KM02-SB-D

Arsenic 0.66 mg/kg

14AD-KM03-SB-C


14AD-KM04-SB-C

14AD-KM05-SB-C



14AD-KM06-SB-C

Arsenic 1.19 mg/kg

14AD-KM07-SB-C

Arsenic 0.36 J mg/kg

14AD-KM08-SB-C

Legend


Property Boundary

On-site

Notes:## Station identification number14AD 14th Avenue Ditch Areabgs Below ground surfaceC 6 to 7 feet bgsD 3 to 3.5 feet bgsEPA U. S. Environmental Protection AgencyJ The analyte was positively identified; the


KM Former Kerr-McGee Wood Treating Facilityµg/kg Micrograms per kilogrammg/kg Milligrams per kilogramRSL EPA Regional Screening Levels for residential


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Surface Soil Sampling Results(0 to 6 inches bgs)





Arsenic 1.62 mg/kg

14AD-RP01-SS-A





Arsenic 1.15 mg/kg

14AD-RP02-SS-A

Benzo(a)pyrene 52.5 J µg/kg 61.0 J µg/kg

Benzo(b)fluoranthene 161 J µg/kg 245 J µg/kg


14AD-RP03-SS-A-DUP14AD-RP03-SS-A


TEQ WHO2005 ND=01

5.40 pg/g

TEQ WHO2005 ND=0.52

5.45 pg/g

Arsenic 1.46 mg/kg

14AD-RP04-SS-A


Arsenic 1.77 mg/kg

14AD-RP05-SS-A

Arsenic 0.80 mg/kg

14AD-RP06-SS-A

Legend

Surface and SubsurfaceSoil Sampling Location

Property Boundary">)

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Groundwater, Surface, andSubsurface Soil Sampling Location


0 75 150Feet

/1:1,800




## Station identification number14AD 14th Avenue Ditch AreaA 0 to 6 inches bgsbgs Below ground surfaceDUP DuplicateEPA U. S. Environmental Protection AgencyJ The analyte was positively identified; the


µg/kg Micrograms per kilogrammg/kg Milligrams per kilogrampg/g Picograms per gramRP Residential propertyRSL EPA Regional Screening Levels for residential

soil, April 2012SS Surface soilBOLD Value exceeds the EPA RSL for residential soil

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Arsenic 2.40 mg/kg

14AD-RP01-SB-B

14AD-RP02-SB-B


Arsenic 3.15 mg/kg

14AD-RP03-SB-B

14AD-RP04-SB-B



14AD-RP05-SB-B

Arsenic 5.31 mg/kg

14AD-RP06-SB-B

Legend


Property Boundary

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Notes:## Station identification number14AD 14th Avenue Ditch AreaB 5 to 6 feet bgsbgs Below ground surfaceEPA U. S. Environmental Protection Agencymg/kg Milligrams per kilogramRP Residential propertyRSL EPA Regional Screening Levels for

residential soil, April 2012SB Subsurface soilBOLD Value exceeds the EPA RSL for residential soil

0 75 150Feet

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Arsenic 2.98 mg/kg

14AD-RP01-SB-C

14AD-RP02-SB-C


Arsenic 1.37 mg/kg

14AD-RP03-SB-C


14AD-RP04-SB-C

Arsenic 1.07 mg/kg

14AD-RP05-SB-C

Arsenic 4.42 mg/kg

14AD-RP06-SB-C

0 75 150Feet

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Legend


Property Boundary

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Notes:## Station identification number14AD 14th Avenue Ditch Areabgs Below ground surfaceC 6 to 7 feet bgsEPA U. S. Environmental Protection AgencyJ The analyte was positively identified; the


µg/kg Micrograms per kilogrammg/kg Milligrams per kilogramRP Residential propertyRSL EPA Regional Screening Levels for residential


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Figure 15Interim Remedial Investigation

Groundwater Results



1:1,800


14AD-RP02-GW-DUP

No consitiuents exceeded EPA RSLsNo consitiuents exceeded EPA RSLs

14AD-RP02-GW

Benzene 327 µg/L

Naphthalene 26.5 µg/L

Arsenic 6.90 J µg/L

14AD-RP04-GW


14AD-RP06-GW

Legend

Property Boundary

">) Groundwater and Surface andSubsurface Soil Sampling Location

Notes:## Station identification number14AD 14th Avenue Ditch Areaµg/L micrograms per literDUP DuplicateEPA U. S. Environmental Protection AgencyGW GroundwaterRP Residential propertyJ The analyte was positively identified; the associated

value is the approximate concentration of the analytein the sample.

RSL EPA Regional Screening Levels for tapwaterBOLD Value exceeds the EPA RSL for tapwater, April 2012.

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Figure 16Human Health

Conceptual Site Model

PrimaryContaminant

Sources

PrimaryContaminant

R/T MechanismsPrimary

Affected Media

SecondaryContaminant

R/T MechanismsSecondary

Affected Media

Potentially Exposed Human Receptors

MultipleOn-SiteSources

Spills, Leaks,and OtherReleases

Surface andSubsurface

Soil (1)Runoff

ExposureRoutes Residents

Industrial/Commercial

WorkersConstructionWorkers (2) Trespassers (3)

Ingestion

Dermal Contact

Inhalation

Sediment

Notes:

3. = Trespassers assumed to be both adolescents and adults.

2. = Construction workers potentially exposed during remedial actions.

= Incomplete exposure pathway -- will not be considered in the HHRA.

= Potentially complete, but insignificant exposure pathway -- will not be considered in the HHRA.

= Potentially complete exposure pathway -- retained for quantitative analysis.

HHRA = Human health risk assessment

Release/transportR/T =

1. = Soil contamination is limited to the on-site source locations. The potential source areas(and soil-related exposure pathways) will be addressed in a separate operable unit.

##*3*

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Surface Water Sampling Results



Image Source: Bing Maps Aerial, 2012.

Legend

Sample Locations

#*3 Surface Water

##*3* Background Surface Water

Property Boundary

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1:1,8001,4-Dioxane 0.736 J µg/L

Aluminum 429 µg/L

Iron 2,400 µg/L

Manganese 887 µg/L

14AD-FA19-SW

Aluminum 97.7 µg/L

Iron 1,050 µg/L

Manganese 315 µg/L

14AD-FA20-SWAluminum 145 µg/L

Iron 671 µg/L

Manganese 98.6 µg/L

14AD-FA21-SWBenzo(b)fluoranthene 0.119 µg/L

Aluminum 157 J µg/L

Iron 485 µg/L

Manganese 51.4 J µg/L

14AD-FA22-SW

1,4-Dioxane 1.22 J µg/L

Aluminum 109 J µg/L

Iron 395 µg/L

14AD-FA22-SW-DUP

Notes:## Station identification number14AD 14th Avenue Ditch AreaDUP DuplicateEPA U. S. Environmental Protection AgencyFA Fourteenth AvenueJ The analyte was positively identified; the


MCL Maximum Comtaminant Levelµg/L Micrograms per literRSL EPA Region IV Regional Screening Levels

for tapwater, April 2012SW Surface waterBOLD Value exceeds the referenced screening level


APPENDIX B

ANALYTICAL DATA SUMMARY TABLES

(44 Pages)

1 URS Corporation On-site Soil Sampling Analytical Results (0 to 5 feet bgs)

2 14th Avenue Ditch Sediment Sampling Analytical Results (0 to 3 inches bsw-si)

3 14th Avenue Ditch Subsurface Soil Sampling Analytical Results (6 to 12 inches bsw-si)

4 14th Avenue Ditch Subsurface Soil Sampling Analytical Results (12 to 24 inches bsw-si)

5 On-site Surface Soil Sampling Analytical Results (0 to 6 inches bgs)

6 On-site Subsurface Soil Sampling Analytical Results (5 to 6 feet bgs)

7 On-site Subsurface Soil Sampling Analytical Results (3 to 3.5 and 6 to 7 feet bgs)

8 Residential/Commercial Surface Soil Sampling Analytical Results (0 to 6 inches bgs)

9 Residential/Commercial Subsurface Soil Sampling Analytical Results (5 to 6 feet bgs)

10 Residential/Commercial Subsurface Soil Sampling Analytical Results (6 to 7 feet bgs)

11 Comparison of PAH Immunoassay and Analytical Laboratory Results

12 Comparison of PAH Ultraviolet Fluorescence Spectroscopy and Analytical Laboratory Results

13 Comparison of Carcinogenic Benzo(a)pyrene Equivalents and Analytical Laboratory

Benzo(a)pyrene Results

14 Interim Remedial Investigation Groundwater Sampling Analytical Results

15 14th Avenue Ditch Subsurface Soil Sampling Additional Dioxin/Furan Analytical Results

16 14th Avenue Ditch Surface Water Sampling Analytical Results

TABLE 1URS CORPORATION ON-SITE SOIL SAMPLING ANALYTICAL RESULTS (0 TO 5 FEET BGS)

Analyte EPA RSL DB1 DB2 DB4 DB7

Semivolatile Organic Compounds (µg/kg)

Benzo(a)anthracene 150 26 39.9 35.2 36.2

Benzo(a)pyrene 15 41 39 49.6 31

Dibenz(a,h)anthracene 15 10.7 9.49 12.2 8.89

Analyte EPA RSL DB10 DB12 DB12 DUP

Semivolatile Organic Compounds (µg/kg)

Benzo(a)anthracene 150 245 298 99.7

Benzo(a)pyrene 15 267 183 104

Dibenz(a,h)anthracene 15 46 28.9 18.6

Notes:

## Station identification number

bgs Below ground surface

DB Direct boring

DUP Duplicate

EPA U. S. Environmental Protection Agency

µg/kg micrograms per kilogram

RSL EPA Regional Screening Levels for residential soil, April 2012

URS URS Corporation


Only those constituents that exceeded the EPA RSL in at least one sample are presented.

14th Avenue Ditch AreaFinal Interim Remedial Investigation Report

Appendix B - Page 1

TABLE 214TH AVENUE DITCH SEDIMENT SAMPLING ANALYTICAL RESULTS (0 TO 3 INCHES BSW-SI)

Analyte EPA RSL

Volatile Organic Compounds (µg/kg)Acetone 61,000,000 NA 11.5 11.2 J NA NA NA NA NA NA NABenzene 1,100 4.610 U 15.3 J 4.87 J 5.06 U 5.52 U 5.49 U 1.80 J 4.41 U 4.62 U 4.57 UEthylbenzene 5,400 NA 14.0 11.0 NA NA NA NA NA NA NAIsopropylbenzene (Cumene) 2,100,000 NA 24.5 22.6 NA NA NA NA NA NA NAm,p-Xylene1 590,000 1.29 J 85.6 65.9 1.03 J 5.52 U 1.33 J 1.93 J 4.41 U 4.62 U 4.57 Uo-Xylene 690,000 4.61 U 23.1 18.1 5.06 U 5.52 U 5.49 U 0.776 J 4.41 U 4.62 U 4.57 UToluene 5,000,000 NA 5.07 J 3.92 J NA NA NA NA NA NA NA

Semivolatile Organic Compounds (µg/kg)2-Methylnaphthalene 230,000 NA 1,090 J 1,460 J NA NA NA NA NA NA NAAcenaphthene 3,400,000 NA 2,270 3,290 NA NA NA NA NA NA NAAcenaphthylene NL 184 J 651 J 982 J 33.8 J 12.5 J 123 J 19.7 J 136 J 160 J 473Anthracene 17,000,000 NA 22,700 20,800 NA NA NA NA NA NA NABenzo(a)anthracene 150 500 3,620 3,490 109 J 70.7 J 383 J 85.9 J 450 738 4,910Benzo(a)pyrene 15 496 2,200 2,900 92.1 J 37.1 J 317 J 85.4 J 386 J 516 2,040Benzo(b)fluoranthene 150 1,120 4,360 6,380 167 J 405 U 651 106 J 687 822 2,900Benzo(g,h,i)perylene NL NA 658 J 1,110 J NA NA NA NA NA NA NABenzo(k)fluoranthene 1,500 NA 1,540 J 2,220 NA NA NA NA NA NA NABiphenyl 51,000 NA 182 J 241 J NA NA NA NA NA NA NABis(2-Ethylhexyl)phthalate 35,000 68.4 J 176 J 280 J 132 J 405 U 48.4 J 402 U 403 U 41.7 J 46.0 JCarbazole NL 61.9 J 6,920 6,550 397 U 405 U 32.8 J 402 U 403 U 32.5 J 170 JChrysene 15,000 NA 3,800 4,520 NA NA NA NA NA NA NADibenz(a,h)anthracene 15 114 J 228 J 345 J 397 U 405 U 40.1 J 17.9 J 52.2 J 87.4 J 248 JDibenzofuran 78,000 NA 1,770 J 1,800 J NA NA NA NA NA NA NAFluoranthene 2,300,000 809 15,300 13,800 533 298 J 1,640 73.2 J 1,540 1,940 30,200Fluorene 2,300,000 NA 6,000 5,980 NA NA NA NA NA NA NAIndeno(1,2,3-cd)pyrene 150 406 727 J 1,150 J 59.7 J 405 U 124 J 39.1 J 201 J 308 J 783Naphthalene 3,600 371 U 386 J 385 J 397 U 405 U 420 U 402 U 403 U 400 U 38.3 JPentachlorophenol 890 271 J 10,500 U 10,800 UJ 1,990 U 2,030 U 2,100 U 2,010 U 2,020 U 2,000 U 1,960 UPhenanthrene NL 147 J 16,400 14,900 124 J 195 J 601 11.5 J 181 J 486 30,700Pyrene 1,700,000 NA 7,140 6,580 NA NA NA NA NA NA NA

Pesticides (µg/kg)Methoxychlor 310,000 NA 12.2 J+ 9.60 J NA NA NA NA NA NA NAPCBs (µg/kg) NA ND ND NA NA NA NA NA NA NA

14AD-FA00-SD-A 14AD-FA01-SD-A 14AD-FA01-SD-A-DUP 14AD-FA02-SD-A 14AD-FA03-SD-A 14AD-FA04-SD-A 14AD-FA05-SD-A 14AD-FA06-SD-A 14AD-FA07-SD-A 14AD-FA08-SD-A


Appendix B - Page 2


Analyte EPA RSL 14AD-FA00-SD-A 14AD-FA01-SD-A 14AD-FA01-SD-A-DUP 14AD-FA02-SD-A 14AD-FA03-SD-A 14AD-FA04-SD-A 14AD-FA05-SD-A 14AD-FA06-SD-A 14AD-FA07-SD-A 14AD-FA08-SD-A

Dioxins and Furans (pg/g)1,2,3,4,6,7,8-HpCDD NL NA 11,900 10,600 NA NA NA NA NA NA NA1,2,3,4,6,7,8-HpCDF NL NA 1,660 1,540 NA NA NA NA NA NA NA1,2,3,4,7,8,9-HpCDF NL NA 115 119 NA NA NA NA NA NA NA1,2,3,4,7,8-HxCDD NL NA 28.1 J 27.7 J NA NA NA NA NA NA NA1,2,3,6,7,8-HxCDD NL NA 239 218 NA NA NA NA NA NA NA1,2,3,7,8,9-HxCDD NL NA 48.5 J 51.4 J NA NA NA NA NA NA NA1,2,3,4,7,8-HxCDF NL NA 200 188 NA NA NA NA NA NA NA1,2,3,6,7,8-HxCDF NL NA 38.6 J 34.5 J NA NA NA NA NA NA NA1,2,3,7,8,9-HxCDF NL NA 14.9 J+ 16.5 J+ NA NA NA NA NA NA NA2,3,4,6,7,8-HxCDF NL NA 75.1 45.5 J NA NA NA NA NA NA NA1,2,3,4,6,7,8,9-OCDD NL NA 171,000 J 159,000 J NA NA NA NA NA NA NA1,2,3,4,6,7,8,9-OCDF NL NA 7,920 7,220 NA NA NA NA NA NA NA1,2,3,7,8-PeCDD NL NA 11.0 J 65.5 U NA NA NA NA NA NA NA1,2,3,7,8-PeCDF NL NA 15.3 J 12.0 J NA NA NA NA NA NA NA2,3,4,7,8-PeCDF NL NA 41.9 J 37.0 J NA NA NA NA NA NA NA2,3,7,8-TCDF NL NA 3.83 J 2.72 J+ NA NA NA NA NA NA NATEQ WHO2005 ND=02 4.5 NA 279 243 NA NA NA NA NA NA NATEQ WHO2005 ND=0.53 4.5 NA 279 243 NA NA NA NA NA NA NATotal Heptachlorodibenzofuran NL NA 8,270 6,680 NA NA NA NA NA NA NATotal Heptachlorodibenzo-p-dioxin NL NA 44,200 J 35,700 J NA NA NA NA NA NA NATotal Hexachlorodibenzofuran NL NA 2,880 2,600 NA NA NA NA NA NA NATotal Hexachlorodibenzo-p-dioxin NL NA 2,340 J+ 1,950 NA NA NA NA NA NA NATotal Pentachlorodibenzofuran NL NA 244 J+ 254 NA NA NA NA NA NA NATotal Pentachlorodibenzo-p-dioxin NL NA 53.5 J+ 44 J+ NA NA NA NA NA NA NATotal Tetrachlorodibenzofuran NL NA 7.27 J 6.39 J NA NA NA NA NA NA NA

Metals (mg/kg)Aluminum 77,000 NA 2,310 1,630 NA NA NA NA NA NA NAArsenic 0.39 3.93 2.83 2.16 1.71 0.88 1.77 3.86 1.27 2.24 1.52Barium 15,000 NA 22.5 17.5 NA NA NA NA NA NA NACadmium 70 NA 0.11 J 0.12 J NA NA NA NA NA NA NACalcium NL NA 5,810 5,050 NA NA NA NA NA NA NAChromium NL 5.07 6.13 8.63 5.81 4.87 4.70 6.49 2.13 12.5 7.35Cobalt 23 NA 1.37 1.17 NA NA NA NA NA NA NACopper 3,100 NA 7.27 5.62 NA NA NA NA NA NA NAIron 55,000 NA 5,370 4,410 NA NA NA NA NA NA NALead 400 37.4 27.3 27.2 6.95 12.1 12.8 12.5 1.93 14.9 5.66Magnesium NL NA 404 413 NA NA NA NA NA NA NAManganese 1,800 NA 57.4 53.7 NA NA NA NA NA NA NAMercury 10 NA 0.015 J 0.027 NA NA NA NA NA NA NANickel 1,500 NA 2.52 2.17 NA NA NA NA NA NA NAPotassium NL NA 98.7 82.1 NA NA NA NA NA NA NASodium NL NA 18.3 J 16.9 J NA NA NA NA NA NA NAVanadium 390 NA 10.0 7.35 NA NA NA NA NA NA NAZinc 23,000 NA 72.1 68.7 NA NA NA NA NA NA NA


Appendix B - Page 3


Analyte EPA RSL

Volatile Organic Compounds (µg/kg)Acetone 61,000,000Benzene 1,100Ethylbenzene 5,400Isopropylbenzene (Cumene) 2,100,000m,p-Xylene1 590,000o-Xylene 690,000Toluene 5,000,000

Semivolatile Organic Compounds (µg/kg)2-Methylnaphthalene 230,000Acenaphthene 3,400,000Acenaphthylene NLAnthracene 17,000,000Benzo(a)anthracene 150Benzo(a)pyrene 15Benzo(b)fluoranthene 150Benzo(g,h,i)perylene NLBenzo(k)fluoranthene 1,500Biphenyl 51,000Bis(2-Ethylhexyl)phthalate 35,000Carbazole NLChrysene 15,000Dibenz(a,h)anthracene 15Dibenzofuran 78,000Fluoranthene 2,300,000Fluorene 2,300,000Indeno(1,2,3-cd)pyrene 150Naphthalene 3,600Pentachlorophenol 890Phenanthrene NLPyrene 1,700,000

Pesticides (µg/kg)Methoxychlor 310,000PCBs (µg/kg)

NA NA NA NA NA NA NA NA NA NA3.72 U 4.24 U 4.64 U 4.91 U 4.55 U 7.84 U 4.35 U 6.83 U 4.75 U 4.02 UNA NA NA NA NA NA NA NA NA NANA NA NA NA NA NA NA NA NA NA

3.72 U 4.24 U 4.64 U 4.91 U 4.55 U 7.84 U 4.35 U 6.83 U 4.75 U 4.02 U3.72 U 4.24 U 4.64 U 4.91 U 4.55 U 7.84 U 4.35 U 6.83 U 4.75 U 4.02 UNA NA NA NA NA NA NA NA NA NA

NA NA NA NA NA NA NA NA NA NANA NA NA NA NA NA NA NA NA NA

52.2 J 300 J 258 J 371 J 406 141 J 19.3 J 78.9 J 186 J 337 JNA NA NA NA NA NA NA NA NA NA171 J 1,340 580 876 1,390 308 J 414 U 48.1 J 381 J 1,050172 J 1,070 601 1,210 1,450 396 J 128 J 60.6 J 455 1,050292 J 2,050 1,170 2,260 2,670 745 191 J 103 J 933 2,050NA NA NA NA NA NA NA NA NA NANA NA NA NA NA NA NA NA NA NANA NA NA NA NA NA NA NA NA NA390 U 391 U 52.9 J 34.1 J 160 J 69.7 J 414 U 505 U 48.2 J 391 U390 U 64.5 J 402 116 J 1,030 265 J 414 U 505 U 92.3 J 78.6 JNA NA NA NA NA NA NA NA NA NA

29.3 J 160 J 111 J 397 U 219 J 75.6 J 414 U 18.9 J 105 J 229 JNA NA NA NA NA NA NA NA NA NA384 J 2,830 1,170 1,190 2,100 346 J 23.2 J 87.2 J 1,730 1,690NA NA NA NA NA NA NA NA NA NA

89.7 J 533 382 J 665 647 204 J 53.5 J 42.7 J 320 J 793390 U 391 U 34.6 J 397 U 33.6 J 499 U 414 U 505 U 454 U 391 U

1,950 U 1,960 U 1,990 U 1,980 U 256 J 2,490 U 2,070 U 2,530 U 2,270 U 1,950 U59.7 J 122 J 278 J 105 J 533 188 J 414 U 43.3 J 1,500 124 JNA NA NA NA NA NA NA NA NA NA


14AD-FA09-SD-A 14AD-FA10-SD-A 14AD-FA11-SD-A 14AD-FA12-SD-A 14AD-FA13-SD-A 14AD-FA14-SD-A 14AD-FA15-SD-A 14AD-FA16-SD-A 14AD-FA17-SD-A 14AD-FA18-SD-A


Appendix B - Page 4


Analyte EPA RSL

Dioxins and Furans (pg/g)1,2,3,4,6,7,8-HpCDD NL1,2,3,4,6,7,8-HpCDF NL1,2,3,4,7,8,9-HpCDF NL1,2,3,4,7,8-HxCDD NL1,2,3,6,7,8-HxCDD NL1,2,3,7,8,9-HxCDD NL1,2,3,4,7,8-HxCDF NL1,2,3,6,7,8-HxCDF NL1,2,3,7,8,9-HxCDF NL2,3,4,6,7,8-HxCDF NL1,2,3,4,6,7,8,9-OCDD NL1,2,3,4,6,7,8,9-OCDF NL1,2,3,7,8-PeCDD NL1,2,3,7,8-PeCDF NL2,3,4,7,8-PeCDF NL2,3,7,8-TCDF NLTEQ WHO2005 ND=02 4.5TEQ WHO2005 ND=0.53 4.5Total Heptachlorodibenzofuran NLTotal Heptachlorodibenzo-p-dioxin NLTotal Hexachlorodibenzofuran NLTotal Hexachlorodibenzo-p-dioxin NLTotal Pentachlorodibenzofuran NLTotal Pentachlorodibenzo-p-dioxin NLTotal Tetrachlorodibenzofuran NL

Metals (mg/kg)Aluminum 77,000Arsenic 0.39Barium 15,000Cadmium 70Calcium NLChromium NLCobalt 23Copper 3,100Iron 55,000Lead 400Magnesium NLManganese 1,800Mercury 10Nickel 1,500Potassium NLSodium NLVanadium 390Zinc 23,000

14AD-FA09-SD-A 14AD-FA10-SD-A 14AD-FA11-SD-A 14AD-FA12-SD-A 14AD-FA13-SD-A 14AD-FA14-SD-A 14AD-FA15-SD-A 14AD-FA16-SD-A 14AD-FA17-SD-A 14AD-FA18-SD-A

NA NA NA NA NA NA NA NA NA NANA NA NA NA NA NA NA NA NA NANA NA NA NA NA NA NA NA NA NANA NA NA NA NA NA NA NA NA NANA NA NA NA NA NA NA NA NA NANA NA NA NA NA NA NA NA NA NANA NA NA NA NA NA NA NA NA NANA NA NA NA NA NA NA NA NA NANA NA NA NA NA NA NA NA NA NANA NA NA NA NA NA NA NA NA NANA NA NA NA NA NA NA NA NA NANA NA NA NA NA NA NA NA NA NANA NA NA NA NA NA NA NA NA NANA NA NA NA NA NA NA NA NA NANA NA NA NA NA NA NA NA NA NANA NA NA NA NA NA NA NA NA NANA NA NA NA NA NA NA NA NA NANA NA NA NA NA NA NA NA NA NANA NA NA NA NA NA NA NA NA NANA NA NA NA NA NA NA NA NA NANA NA NA NA NA NA NA NA NA NANA NA NA NA NA NA NA NA NA NANA NA NA NA NA NA NA NA NA NANA NA NA NA NA NA NA NA NA NANA NA NA NA NA NA NA NA NA NA

NA NA NA NA NA NA NA NA NA NA1.48 3.11 1.75 3.00 4.59 1.11 J+ 2.10 13.5 2.93 3.96NA NA NA NA NA NA NA NA NA NANA NA NA NA NA NA NA NA NA NANA NA NA NA NA NA NA NA NA NA

6.32 8.66 14.3 29.4 16.2 6.94 3.39 12.5 6.67 5.17NA NA NA NA NA NA NA NA NA NANA NA NA NA NA NA NA NA NA NANA NA NA NA NA NA NA NA NA NA

6.63 9.77 14.3 7.74 10.2 25.9 3.84 34.5 18.4 11.8NA NA NA NA NA NA NA NA NA NANA NA NA NA NA NA NA NA NA NANA NA NA NA NA NA NA NA NA NANA NA NA NA NA NA NA NA NA NANA NA NA NA NA NA NA NA NA NANA NA NA NA NA NA NA NA NA NANA NA NA NA NA NA NA NA NA NANA NA NA NA NA NA NA NA NA NA


Appendix B - Page 5


Notes:

1 Value listed is for m-xylene.2 Value listed is the toxicity equivalent using the 2005 World Health Organization toxicity factors and using a zero value for non-detects.3 Value listed is the toxicity equivalent using the 2005 World Health Organization toxicity factors and using a 0.5 value for non-detects.## Station identification number14AD 14th Avenue Ditch AreaA 0 to 3 inches bsw-sibsw-si Below surface water-sediment interfaceDUP DuplicateEPA U. S. Environmental Protection AgencyFA 14th AvenueHpCDD Heptachlorodibenzo-p-dioxinsHpCDF HeptachlorodibenzofuranHxCDD Hexachlorodibenzo-p-dioxinsHxCDF HexachlorodibenzofuransJ The analyte was positively identified; the associated value is the approximate concentration of the analyte in the sample.J+ The analyte was positively identified; the associated value is the approximate concentration of the analyte in the sample and may be biased high.µg/kg micrograms per kilogrammg/kg milligrams per kilogramNA Not analyzedND Not detectedNL Not listedOCDD Octachlorodibenzo-p-dioxinOCDF OctachlorodibenzofuranPeCDD Pentachlorodibenzo-p-dioxinPeCDF Pentachlorodibenzofuranpg/g picograms per gramRSL EPA Regional Screening Levels for residential soil, April 2012SD SedimentTCDF TetrachlorodibenzofuranU The analyte was analyzed for, but was not detected at or above the associated value (reporting limit).BOLD Value exceeds the EPA RSL for residential soil


Appendix B - Page 6

TABLE 314TH AVENUE DITCH SUBSURFACE SOIL SAMPLING ANALYTICAL RESULTS (6 TO 12 INCHES BSW-SI)

Analyte EPA RSL

Volatile Organic Compounds (µg/kg)Acetone 61,000,000 NA 11.9 NA NA NA NA NA NA NA 2.49 JBenzene 1,100 3.80 U 1.67 J 5.08 U 4.79 U 5.04 U 5.96 U 4.24 U 4.00 U 6.08 U 4.17 UCarbon disulfide 820,000 NA 2.54 J NA NA NA NA NA NA NA 3.20 JCyclohexane 7,000,000 NA 1.10 J NA NA NA NA NA NA NA 4.17 UEthylbenzene 5,400 NA 8.80 NA NA NA NA NA NA NA 4.17 UIsopropylbenzene (Cumene) 2,100,000 NA 16.0 NA NA NA NA NA NA NA 4.17 Um,p-Xylene1 590,000 3.80 U 33.0 5.08 U 4.79 U 5.04 U 5.96 U 4.24 U 4.00 U 6.08 U 4.17 UMethylcyclohexane NL NA 1.73 J NA NA NA NA NA NA NA 4.17 Uo-Xylene 690,000 3.80 U 9.86 5.08 U 4.79 U 5.04 U 5.96 U 4.24 U 4.00 U 6.08 U 4.17 UToluene 5,000,000 NA 3.98 J NA NA NA NA NA NA NA 4.17 U

Semivolatile Organic Compounds (µg/kg)2-Chlorophenol 390,000 76.8 J 2,050 U 393 U 396 U 419 U 408 U 386 U 1,600 U 392 U 383 U2-Methylnaphthalene 230,000 NA 9,750 NA NA NA NA NA NA NA 268 JAcenaphthene 3,400,000 NA 17,000 NA NA NA NA NA NA NA 3,030 J-Acenaphthylene NL 166 J 1,450 J 32.9 J 15.4 J 70.9 J 64.3 J 60.9 J 622 J 137 J 383 UAnthracene 17,000,000 NA 10,900 NA NA NA NA NA NA NA 2,530Benzo(a)anthracene 150 324 J 8,480 236 J 173 J 214 J 148 J 201 J 6,660 J 414 J 2,430Benzo(a)pyrene 15 431 4,710 95.1 J 61.7 J 219 J 189 J 184 J 3,830 J 354 J 955Benzo(b)fluoranthene 150 889 8,900 160 J 104 J 356 J 262 J 288 J 7,860 J 760 J 1,300Benzo(g,h,i)perylene NL NA 1,390 J NA NA NA NA NA NA NA 377 JBenzo(k)fluoranthene 1,500 NA 3,770 NA NA NA NA NA NA NA 700Biphenyl 51,000 NA 1,890 J NA NA NA NA NA NA NA 251 JBis(2-Ethylhexyl)phthalate 35,000 115 J 281 J 393 U 396 U 24.5 J 408 U 386 U 1,600 U 49.1 J 383 UCarbazole NL 49.9 J 1,500 J 393 U 41.1 J 419 U 62.9 J 386 U 133 J 29.6 J 90.8 JChrysene 15,000 NA 8,380 NA NA NA NA NA NA NA 2,120Dibenz(a,h)anthracene 15 108 J 505 J 393 U 396 U 33.3 J 33.3 J 29.1 J 424 J 54.6 J 93.6 JDibenzofuran 78,000 NA 9,740 NA NA NA NA NA NA NA 2,960 J-Fluoranthene 2,300,000 411 41,200 1,120 950 580 183 J 591 12,600 J 1,260 J 15,400Fluorene 2,300,000 NA 18,300 NA NA NA NA NA NA NA 5,200 J-Indeno(1,2,3-cd)pyrene 150 393 1,550 J 46.0 J 27.3 J 124 J 92.2 J 98.5 J 1,230 J 173 J 371 JNaphthalene 3,600 77.0 J 2,880 393 U 396 U 419 U 408 U 386 U 1,600 U 392 U 113 JPhenanthrene NL 51.1 J 52,500 380 J 1,110 63.6 J 48.1 J 121 J 1,440 J 539 J 21,200Phenol 18,000,000 62.4 J 2,050 U 393 U 396 U 419 U 408 U 386 U 1,600 U 392 U 383 UPyrene 1,700,000 NA 21,100 NA NA NA NA NA NA NA 7,580 J-

Pesticides (µg/kg)4,4'-DDD 2,000 NA 24.9 U NA NA NA NA NA NA NA 2.62 JMethoxychlor 310,000 NA 4.92 J+ NA NA NA NA NA NA NA 231 UPCBs (µg/kg) NA ND NA NA NA NA NA NA NA ND

14AD-FA05-SB-B 14AD-FA06-SB-B 14AD-FA07-SB-B 14AD-FA08-SB-B14AD-FA07-SB-B-DUP14AD-FA00-SB-B 14AD-FA01-SB-B 14AD-FA02-SB-B 14AD-FA03-SB-B 14AD-FA04-SB-B


Appendix B - Page 7


Analyte EPA RSL 14AD-FA05-SB-B 14AD-FA06-SB-B 14AD-FA07-SB-B 14AD-FA08-SB-B14AD-FA07-SB-B-DUP14AD-FA00-SB-B 14AD-FA01-SB-B 14AD-FA02-SB-B 14AD-FA03-SB-B 14AD-FA04-SB-B

Dioxins and Furans (pg/g)1,2,3,4,6,7,8-HpCDD NL NA 21,500 NA NA NA NA NA NA NA 5,9201,2,3,4,6,7,8-HpCDF NL NA 3,440 NA NA NA NA NA NA NA 1,0301,2,3,4,7,8,9-HpCDF NL NA 260 J NA NA NA NA NA NA NA 88.41,2,3,4,7,8-HxCDD NL NA 60.6 J NA NA NA NA NA NA NA 55.8 U1,2,3,6,7,8-HxCDD NL NA 428 J- NA NA NA NA NA NA NA 1541,2,3,7,8,9-HxCDD NL NA 96.7 J NA NA NA NA NA NA NA 26.6 J1,2,3,4,7,8-HxCDF NL NA 470 J NA NA NA NA NA NA NA 2711,2,3,6,7,8-HxCDF NL NA 77.8 J NA NA NA NA NA NA NA 37.5 J1,2,3,7,8,9-HxCDF NL NA 24.3 J NA NA NA NA NA NA NA 23.7 J+2,3,4,6,7,8-HxCDF NL NA 156 NA NA NA NA NA NA NA 33.6 J1,2,3,4,6,7,8,9-OCDD NL NA 331,000 J NA NA NA NA NA NA NA 94,200 J1,2,3,4,6,7,8,9-OCDF NL NA 17,800 NA NA NA NA NA NA NA 3,6701,2,3,7,8-PeCDD NL NA 22.2 J NA NA NA NA NA NA NA 55.8 U1,2,3,7,8-PeCDF NL NA 25.7 J NA NA NA NA NA NA NA 12.9 J2,3,4,7,8-PeCDF NL NA 91.4 J NA NA NA NA NA NA NA 61.52,3,7,8-TCDF NL NA 6.20 J NA NA NA NA NA NA NA 11.2 UTEQ WHO2005 ND=02 4.5 NA 540 NA NA NA NA NA NA NA 173TEQ WHO2005 ND=0.53 4.5 NA 541 NA NA NA NA NA NA NA 174Total Heptachlorodibenzofuran NL NA 18,400 NA NA NA NA NA NA NA 4,860Total Heptachlorodibenzo-p-dioxin NL NA 75,300 J NA NA NA NA NA NA NA 23,300 JTotal Hexachlorodibenzofuran NL NA 6,880 J+ NA NA NA NA NA NA NA 2,820Total Hexachlorodibenzo-p-dioxin NL NA 3,720 J+ NA NA NA NA NA NA NA 1,050Total Pentachlorodibenzofuran NL NA 516 J+ NA NA NA NA NA NA NA 313 J+Total Pentachlorodibenzo-p-dioxin NL NA 136 J+ NA NA NA NA NA NA NA 55.8 UTotal Tetrachlorodibenzofuran NL NA 6.20 J+ NA NA NA NA NA NA NA 7.54 J

Metals (mg/kg)Aluminum 77,000 NA 2,610 NA NA NA NA NA NA NA 4,810Arsenic 0.39 2.01 2.85 2.43 0.29 J 2.08 10.7 1.72 0.86 J+ 0.80 J+ 0.62 J+Barium 15,000 NA 25.8 NA NA NA NA NA NA NA 26.2Beryllium 160 NA 0.25 U NA NA NA NA NA NA NA 0.12 JCadmium 70 NA 0.10 J NA NA NA NA NA NA NA 0.042 JCalcium NL NA 8,520 NA NA NA NA NA NA NA 836Chromium NL 9.35 5.90 6.02 3.77 5.50 3.21 2.98 5.46 3.37 5.92Cobalt 23 NA 1.59 NA NA NA NA NA NA NA 0.70Copper 3,100 NA 4.70 NA NA NA NA NA NA NA 2.30Iron 55,000 NA 4,760 NA NA NA NA NA NA NA 3,590Lead 400 68.3 17.0 5.25 5.59 11.4 20.2 2.62 19.4 J 9.74 J 5.01Magnesium NL NA 623 NA NA NA NA NA NA NA 227Manganese 1,800 NA 63.1 NA NA NA NA NA NA NA 61.0Mercury 10 NA 0.030 NA NA NA NA NA NA NA 0.016Nickel 1,500 NA 2.17 NA NA NA NA NA NA NA 1.86 UPotassium NL NA 115 NA NA NA NA NA NA NA 184Sodium NL NA 19.2 J NA NA NA NA NA NA NA 20.0 JVanadium 390 NA 8.10 NA NA NA NA NA NA NA 6.77Zinc 23,000 NA 62.8 NA NA NA NA NA NA NA 14.8


Appendix B - Page 8


Analyte EPA RSL

Volatile Organic Compounds (µg/kg)Acetone 61,000,000Benzene 1,100Carbon disulfide 820,000Cyclohexane 7,000,000Ethylbenzene 5,400Isopropylbenzene (Cumene) 2,100,000m,p-Xylene1 590,000Methylcyclohexane NLo-Xylene 690,000Toluene 5,000,000

Semivolatile Organic Compounds (µg/kg)2-Chlorophenol 390,0002-Methylnaphthalene 230,000Acenaphthene 3,400,000Acenaphthylene NLAnthracene 17,000,000Benzo(a)anthracene 150Benzo(a)pyrene 15Benzo(b)fluoranthene 150Benzo(g,h,i)perylene NLBenzo(k)fluoranthene 1,500Biphenyl 51,000Bis(2-Ethylhexyl)phthalate 35,000Carbazole NLChrysene 15,000Dibenz(a,h)anthracene 15Dibenzofuran 78,000Fluoranthene 2,300,000Fluorene 2,300,000Indeno(1,2,3-cd)pyrene 150Naphthalene 3,600Phenanthrene NLPhenol 18,000,000Pyrene 1,700,000

Pesticides (µg/kg)4,4'-DDD 2,000Methoxychlor 310,000PCBs (µg/kg)

NA NA NA NA NA NA NA NA NA NA4.51 U 4.69 U 4.43 U 4.65 U 0.780 J 4.76 U 4.71 U 6.68 U 4.56 U 4.03 UNA NA NA NA NA NA NA NA NA NANA NA NA NA NA NA NA NA NA NANA NA NA NA NA NA NA NA NA NANA NA NA NA NA NA NA NA NA NA

4.51 U 4.69 U 4.43 U 4.65 U 1.07 J 4.76 U 4.71 U 6.68 U 4.56 U 4.03 UNA NA NA NA NA NA NA NA NA NA

4.51 U 4.69 U 4.43 U 4.65 U 0.365 J 4.76 U 4.71 U 6.68 U 4.56 U 4.03 UNA NA NA NA NA NA NA NA NA NA

722 386 U 406 U 4,050 U 2,030 U 398 U 411 U 871 U 418 U 392 UNA NA NA NA NA NA NA NA NA NANA NA NA NA NA NA NA NA NA NA

41.6 J 135 J 152 J 2,990 J 250 J 47.9 J 37.7 J 544 J 135 J 85.5 JNA NA NA NA NA NA NA NA NA NA134 J 568 376 J 6,540 835 J 92.7 J 88.1 J 4,000 J- 283 J 457127 J 457 432 9,640 780 J 135 J 117 J 2,720 J- 349 J 319 J241 J 894 812 15,800 1,470 J 290 J 228 J 5,180 J- 625 584NA NA NA NA NA NA NA NA NA NANA NA NA NA NA NA NA NA NA NANA NA NA NA NA NA NA NA NA NA391 U 386 U 113 J 4,050 U 2,030 U 398 U 411 U 871 U 27.7 J 392 U391 U 48.0 J 34.1 J 383 J 6,390 398 U 411 U 289 J+ 34.8 J 392 UNA NA NA NA NA NA NA NA NA NA391 U 73.0 J 106 J 1,150 J 121 J 24.2 J 15.1 J 455 J 85.8 J 59.4 JNA NA NA NA NA NA NA NA NA NA359 J 1,620 803 8,870 1,580 J 88.7 J 138 J 8,740 J- 437 954NA NA NA NA NA NA NA NA NA NA

68.7 J 249 J 254 J 3,380 J 454 J 74.9 J 53.9 J 1,560 264 J 196 J391 U 386 U 406 U 4,050 U 429 J 398 U 411 U 86.6 J 418 U 392 U

61.7 J 48.8 J 31.0 J 411 J 1,890 J 398 U 11.6 J 752 J+ 38.1 J 177 J391 U 386 U 406 U 4,050 U 2,030 U 398 U 411 U 871 U 418 U 392 UNA NA NA NA NA NA NA NA NA NA

NA NA NA NA NA NA NA NA NA NANA NA NA NA NA NA NA NA NA NANA NA NA NA NA NA NA NA NA NA

14AD-FA14-SB-B 14AD-FA15-SB-B 14AD-FA16-SB-B 14AD-FA17-SB-B 14AD-FA18-SB-B14AD-FA09-SB-B 14AD-FA10-SB-B 14AD-FA11-SB-B 14AD-FA12-SB-B 14AD-FA13-SB-B


Appendix B - Page 9


Analyte EPA RSL

Dioxins and Furans (pg/g)1,2,3,4,6,7,8-HpCDD NL1,2,3,4,6,7,8-HpCDF NL1,2,3,4,7,8,9-HpCDF NL1,2,3,4,7,8-HxCDD NL1,2,3,6,7,8-HxCDD NL1,2,3,7,8,9-HxCDD NL1,2,3,4,7,8-HxCDF NL1,2,3,6,7,8-HxCDF NL1,2,3,7,8,9-HxCDF NL2,3,4,6,7,8-HxCDF NL1,2,3,4,6,7,8,9-OCDD NL1,2,3,4,6,7,8,9-OCDF NL1,2,3,7,8-PeCDD NL1,2,3,7,8-PeCDF NL2,3,4,7,8-PeCDF NL2,3,7,8-TCDF NLTEQ WHO2005 ND=02 4.5TEQ WHO2005 ND=0.53 4.5Total Heptachlorodibenzofuran NLTotal Heptachlorodibenzo-p-dioxin NLTotal Hexachlorodibenzofuran NLTotal Hexachlorodibenzo-p-dioxin NLTotal Pentachlorodibenzofuran NLTotal Pentachlorodibenzo-p-dioxin NLTotal Tetrachlorodibenzofuran NL

Metals (mg/kg)Aluminum 77,000Arsenic 0.39Barium 15,000Beryllium 160Cadmium 70Calcium NLChromium NLCobalt 23Copper 3,100Iron 55,000Lead 400Magnesium NLManganese 1,800Mercury 10Nickel 1,500Potassium NLSodium NLVanadium 390Zinc 23,000

14AD-FA14-SB-B 14AD-FA15-SB-B 14AD-FA16-SB-B 14AD-FA17-SB-B 14AD-FA18-SB-B14AD-FA09-SB-B 14AD-FA10-SB-B 14AD-FA11-SB-B 14AD-FA12-SB-B 14AD-FA13-SB-B

NA NA NA NA NA NA NA NA NA NANA NA NA NA NA NA NA NA NA NANA NA NA NA NA NA NA NA NA NANA NA NA NA NA NA NA NA NA NANA NA NA NA NA NA NA NA NA NANA NA NA NA NA NA NA NA NA NANA NA NA NA NA NA NA NA NA NANA NA NA NA NA NA NA NA NA NANA NA NA NA NA NA NA NA NA NANA NA NA NA NA NA NA NA NA NANA NA NA NA NA NA NA NA NA NANA NA NA NA NA NA NA NA NA NANA NA NA NA NA NA NA NA NA NANA NA NA NA NA NA NA NA NA NANA NA NA NA NA NA NA NA NA NANA NA NA NA NA NA NA NA NA NANA NA NA NA NA NA NA NA NA NANA NA NA NA NA NA NA NA NA NANA NA NA NA NA NA NA NA NA NANA NA NA NA NA NA NA NA NA NANA NA NA NA NA NA NA NA NA NANA NA NA NA NA NA NA NA NA NANA NA NA NA NA NA NA NA NA NANA NA NA NA NA NA NA NA NA NANA NA NA NA NA NA NA NA NA NA

NA NA NA NA NA NA NA NA NA NA1.60 2.00 4.07 1.63 3.11 0.71 J+ 1.68 J+ 3.40 2.58 3.55NA NA NA NA NA NA NA NA NA NANA NA NA NA NA NA NA NA NA NANA NA NA NA NA NA NA NA NA NANA NA NA NA NA NA NA NA NA NA

5.28 4.02 11.5 6.06 5.75 4.63 3.44 7.39 6.35 5.14NA NA NA NA NA NA NA NA NA NANA NA NA NA NA NA NA NA NA NANA NA NA NA NA NA NA NA NA NA



Appendix B - Page 10

TABLE 314TH AVENUE DITCH SUBUSRFACE SOIL SAMPLING ANALYTICAL RESULTS (6 TO 12 INCHES BSW-SI)

Notes:

1 Value listed is for m-xylene.2 Value listed is the toxicity equivalent using the 2005 World Health Organization toxicity factors and using a zero value for non-detects.3 Value listed is the toxicity equivalent using the 2005 World Health Organization toxicity factors and using a 0.5 value for non-detects.## Station identification number14AD 14th Avenue Ditch AreaB 6 to 12 inches bsw-sibsw-si Below surface water-sediment interfaceDUP DuplicateEPA U. S. Environmental Protection AgencyFA 14th AvenueHpCDD Heptachlorodibenzo-p-dioxinsHpCDF HeptachlorodibenzofuranHxCDD Hexachlorodibenzo-p-dioxinsHxCDF HexachlorodibenzofuransJ The analyte was positively identified; the associated value is the approximate concentration of the analyte in the sample.J+ The analyte was positively identified; the associated value is the approximate concentration of the analyte in the sample and may be biased high.J- The analyte was positively identified; the associated value is the approximate concentration of the analyte in the sample and may be biased low.µg/kg micrograms per kilogrammg/kg milligrams per kilogramNA Not analyzedND Not detectedNL Not listedOCDD Octachlorodibenzo-p-dioxinOCDF OctachlorodibenzofuranPeCDD Pentachlorodibenzo-p-dioxinPeCDF Pentachlorodibenzofuranpg/g picograms per gramRSL EPA Regional Screening Levels for residential soil, April 2012SB Subsurface soilTCDF TetrachlorodibenzofuranU The analyte was analyzed for, but was not detected at or above the associated value (reporting limit).BOLD Value exceeds the EPA RSL for residential soil




Analyte EPA RSL

Volatile Organic Compounds (µg/kg)2-Butanone 28,000,000 NA 410 U NA NA NA NA NA NA NA 0.806 JAcetone 61,000,000 NA 410 U NA NA NA NA NA NA NA 1.12 JCarbon disulfide 820,000 NA 205 U NA NA NA NA NA NA NA 3.00 JEthylbenzene 5,400 NA 171 J NA NA NA NA NA NA NA 4.76 UIsopropylbenzene (Cumene) 2,100,000 NA 116 J NA NA NA NA NA NA NA 4.76 Um,p-Xylene1 590,000 4.48 U 413 0.978 J 6.57 U 0.715 J 3.69 U 4.78 U 5.27 U 4.54 U 4.76 UMethyl Acetate 78,000,000 NA 43.2 J NA NA NA NA NA NA NA 4.76 Uo-Xylene 690,000 4.48 U 170 J 4.78 U 6.57 U 4.88 U 3.69 U 4.78 U 5.27 U 4.54 U 4.76 UToluene 5,000,000 NA 41.3 J NA NA NA NA NA NA NA 4.76 U

Semivolatile Organic Compounds (µg/kg)2-Methylnaphthalene 230,000 NA 9,580 J- NA NA NA NA NA NA NA 1,270Acenaphthene 3,400,000 NA 15,200 J- NA NA NA NA NA NA NA 4,360Acenaphthylene NL 156 J 1,350 J- 398 U 46.7 J 31.1 J 406 U 49.4 J 107 J 181 J 383 UAnthracene 17,000,000 NA 32,600 J- NA NA NA NA NA NA NA 3,520Benzo(a)anthracene 150 499 9,550 J- 398 U 397 J 119 J 406 U 174 J 462 J 834 J 3,380Benzo(a)pyrene 15 465 J 4,280 J- 398 U 148 J 112 J 406 U 155 J 372 J 674 J 1,280Benzo(b)fluoranthene 150 1,000 J 7,720 J- 398 U 245 J 183 J 406 U 278 J 684 J 1,470 J 1,590Benzo(g,h,i)perylene NL NA 1,170 J- NA NA NA NA NA NA NA 572Benzo(k)fluoranthene 1,500 NA 3,270 J- NA NA NA NA NA NA NA 1,040Biphenyl 51,000 NA 2,580 J- NA NA NA NA NA NA NA 383 UBis(2-Ethylhexyl)phthalate 35,000 38.5 J 2,000 UJ 398 U 411 U 421 U 406 U 389 U 204 J 87.2 J 383 UCarbazole NL 52.5 J 11,600 J- 398 U 36.6 J 421 U 406 U 389 U 29.1 J 65.9 J 325 JChrysene 15,000 NA 8,510 J- NA NA NA NA NA NA NA 2,800Dibenz(a,h)anthracene 15 93.1 J 427 J- 398 U 19.9 J 15.9 J 406 U 23.0 J 43.3 J 84.9 J 170 JDibenzofuran 78,000 NA 13,600 J- NA NA NA NA NA NA NA 4,300Fluoranthene 2,300,000 1,140 43,600 62.4 J 2,070 427 406 U 571 1,060 J 1,860 J 19,500Fluorene 2,300,000 NA 24,200 J- NA NA NA NA NA NA NA 6,910Indeno(1,2,3-cd)pyrene 150 339 J 1,230 J- 398 U 58.6 J 55.3 J 406 U 81.3 J 159 J 255 J 544Naphthalene 3,600 182 J 19,200 J- 398 U 411 U 421 U 406 U 389 U 414 U 406 U 1,400Phenanthrene NL 385 66,100 15.9 J 2,160 41.5 J 406 U 109 J 198 J 290 J 27,200Pyrene 1,700,000 NA 21,900 J- NA NA NA NA NA NA NA 10,200

Pesticides (µg/kg)4,4'-DDD 2,000 NA 24.6 U NA NA NA NA NA NA NA 2.98 JEndosulfan sulfate2 370,000 NA 5.19 J NA NA NA NA NA NA NA 46.6 UMethoxychlor 310,000 NA 123 U NA NA NA NA NA NA NA 10.8 JPCBs (µg/kg) NA ND NA NA NA NA NA NA NA ND

14AD-FA00-SB-C 14AD-FA01-SB-C 14AD-FA02-SB-C 14AD-FA04-SB-C14AD-FA03-SB-C 14AD-FA06-SB-C14AD-FA05-SB-C 14AD-FA07-SB-C 14AD-FA07-SB-C-DUP 14AD-FA08-SB-C




Analyte EPA RSL 14AD-FA00-SB-C 14AD-FA01-SB-C 14AD-FA02-SB-C 14AD-FA04-SB-C14AD-FA03-SB-C 14AD-FA06-SB-C14AD-FA05-SB-C 14AD-FA07-SB-C 14AD-FA07-SB-C-DUP 14AD-FA08-SB-C

Dioxins and Furans (pg/g)1,2,3,4,6,7,8-HpCDD NL NA 18,800 NA NA NA NA NA NA NA 6,5801,2,3,4,6,7,8-HpCDF NL NA 2,170 NA NA NA NA NA NA NA 1,1101,2,3,4,7,8,9-HpCDF NL NA 244 NA NA NA NA NA NA NA 53.2 U1,2,3,4,7,8-HxCDD NL NA 74.1 J NA NA NA NA NA NA NA 6.51 J1,2,3,6,7,8-HxCDD NL NA 387 NA NA NA NA NA NA NA 1731,2,3,7,8,9-HxCDD NL NA 79.5 J NA NA NA NA NA NA NA 17.5 J1,2,3,4,7,8-HxCDF NL NA 342 NA NA NA NA NA NA NA 2601,2,3,6,7,8-HxCDF NL NA 64.9 J NA NA NA NA NA NA NA 40.9 J1,2,3,7,8,9-HxCDF NL NA 112 J NA NA NA NA NA NA NA 21.1 J+2,3,4,6,7,8-HxCDF NL NA 108 J NA NA NA NA NA NA NA 43.1 J1,2,3,4,6,7,8,9-OCDD NL NA 356,000 J NA NA NA NA NA NA NA 103,000 J1,2,3,4,6,7,8,9-OCDF NL NA 9,130 NA NA NA NA NA NA NA 4,1901,2,3,7,8-PeCDF NL NA 24.6 J NA NA NA NA NA NA NA 13.4 J2,3,4,7,8-PeCDF NL NA 79.0 J NA NA NA NA NA NA NA 44.5 JTEQ WHO2005 ND=03 4.5 NA 463 NA NA NA NA NA NA NA 179TEQ WHO2005 ND=0.54 4.5 NA 477 NA NA NA NA NA NA NA 180Total Heptachlorodibenzofuran NL NA 10,800 NA NA NA NA NA NA NA 5,190Total Heptachlorodibenzo-p-dioxin NL NA 68,200 NA NA NA NA NA NA NA 26,700 JTotal Hexachlorodibenzofuran NL NA 5,040 NA NA NA NA NA NA NA 2,510Total Hexachlorodibenzo-p-dioxin NL NA 4,340 NA NA NA NA NA NA NA 863Total Pentachlorodibenzofuran NL NA 427 NA NA NA NA NA NA NA 261Total Pentachlorodibenzo-p-dioxin NL NA 34.5 J NA NA NA NA NA NA NA 53.2 U

Metals (mg/kg)Aluminum 77,000 NA 2,860 NA NA NA NA NA NA NA 4,590Arsenic 0.39 5.63 2.12 2.07 0.32 J 2.37 5.05 1.77 1.61 0.99 0.47 UBarium 15,000 NA 30.8 NA NA NA NA NA NA NA 23.4Beryllium 160 NA 0.25 U NA NA NA NA NA NA NA 0.099 JCadmium 70 NA 0.031 J NA NA NA NA NA NA NA 0.041 JCalcium NL NA 3,390 NA NA NA NA NA NA NA 902Chromium NL 6.64 4.35 9.88 4.35 3.43 3.46 J 2.29 9.00 J 3.93 J 6.99Cobalt 23 NA 1.36 NA NA NA NA NA NA NA 0.63Copper 3,100 NA 2.72 NA NA NA NA NA NA NA 2.33Iron 55,000 NA 5,600 NA NA NA NA NA NA NA 3,490Lead 400 38.7 7.88 3.92 5.80 6.04 9.24 J 1.55 22.4 J 11.5 J 4.63Magnesium NL NA 196 NA NA NA NA NA NA NA 226Manganese 1,800 NA 59.1 NA NA NA NA NA NA NA 58.9Mercury 10 NA 0.032 NA NA NA NA NA NA NA 0.011 JNickel 1,500 NA 1.57 J NA NA NA NA NA NA NA 2.26Potassium NL NA 111 NA NA NA NA NA NA NA 175Sodium NL NA 14.0 J NA NA NA NA NA NA NA 19.5 JVanadium 390 NA 7.43 NA NA NA NA NA NA NA 6.35Zinc 23,000 NA 32.9 NA NA NA NA NA NA NA 10.9




Analyte EPA RSL

Volatile Organic Compounds (µg/kg)2-Butanone 28,000,000Acetone 61,000,000Carbon disulfide 820,000Ethylbenzene 5,400Isopropylbenzene (Cumene) 2,100,000m,p-Xylene1 590,000Methyl Acetate 78,000,000o-Xylene 690,000Toluene 5,000,000

Semivolatile Organic Compounds (µg/kg)2-Methylnaphthalene 230,000Acenaphthene 3,400,000Acenaphthylene NLAnthracene 17,000,000Benzo(a)anthracene 150Benzo(a)pyrene 15Benzo(b)fluoranthene 150Benzo(g,h,i)perylene NLBenzo(k)fluoranthene 1,500Biphenyl 51,000Bis(2-Ethylhexyl)phthalate 35,000Carbazole NLChrysene 15,000Dibenz(a,h)anthracene 15Dibenzofuran 78,000Fluoranthene 2,300,000Fluorene 2,300,000Indeno(1,2,3-cd)pyrene 150Naphthalene 3,600Phenanthrene NLPyrene 1,700,000

Pesticides (µg/kg)4,4'-DDD 2,000Endosulfan sulfate2 370,000Methoxychlor 310,000PCBs (µg/kg)

NA NA NA NA NA NA NA NA NA NANA NA NA NA NA NA NA NA NA NANA NA NA NA NA NA NA NA NA NANA NA NA NA NA NA NA NA NA NANA NA NA NA NA NA NA NA NA NA

4.42 U 4.01 U 5.05 U 4.84 U 4.41 U 5.90 U 18.6 U 3.63 U 5.67 U 4.34 UNA NA NA NA NA NA NA NA NA NA

4.42 U 4.01 U 5.05 U 4.84 U 4.41 U 5.90 U 18.6 U 3.63 U 5.67 U 4.34 UNA NA NA NA NA NA NA NA NA NA


50.3 J 36.3 J 218 J 837 26.0 J 45.3 J 50.6 J 22.6 J 63.6 J 53.2 JNA NA NA NA NA NA NA NA NA NA163 J 76.7 J 677 2,880 219 J 86.3 J 202 J 85.2 J 408 139 J159 J 76.7 J 719 2,880 181 J 117 J 237 J 83.3 J 221 J 144 J293 J 131 J 1,320 4,880 326 J 225 J 412 174 J 350 J 295 JNA NA NA NA NA NA NA NA NA NANA NA NA NA NA NA NA NA NA NANA NA NA NA NA NA NA NA NA NA392 U 396 U 89.9 J 63.1 J 392 U 411 U 390 U 388 U 401 U 389 U392 U 396 U 47.4 J 81.2 J 1,120 411 U 390 U 388 U 68.5 J 389 UNA NA NA NA NA NA NA NA NA NA392 U 396 U 163 J 407 U 30.8 J 411 U 40.5 J 388 U 39.0 J 30.1 JNA NA NA NA NA NA NA NA NA NA539 140 J 1,120 4,230 517 90.5 J 211 J 142 J 1,670 332 JNA NA NA NA NA NA NA NA NA NA

78.7 J 49.7 J 508 1,280 91.6 J 74.4 J 113 J 35.0 J 99.5 J 96.4 J392 U 396 U 398 U 407 U 72.8 J 411 U 390 U 388 U 401 U 389 U

60.3 J 396 U 39.6 J 149 J 482 11.9 J 13.2 J 42.1 J 2,520 127 JNA NA NA NA NA NA NA NA NA NA

NA NA NA NA NA NA NA NA NA NANA NA NA NA NA NA NA NA NA NANA NA NA NA NA NA NA NA NA NANA NA NA NA NA NA NA NA NA NA

14AD-FA09-SB-C 14AD-FA10-SB-C 14AD-FA11-SB-C 14AD-FA12-SB-C 14AD-FA13-SB-C 14AD-FA14-SB-C 14AD-FA15-SB-C 14AD-FA16-SB-C 14AD-FA17-SB-C 14AD-FA18-SB-C




Analyte EPA RSL

Dioxins and Furans (pg/g)1,2,3,4,6,7,8-HpCDD NL1,2,3,4,6,7,8-HpCDF NL1,2,3,4,7,8,9-HpCDF NL1,2,3,4,7,8-HxCDD NL1,2,3,6,7,8-HxCDD NL1,2,3,7,8,9-HxCDD NL1,2,3,4,7,8-HxCDF NL1,2,3,6,7,8-HxCDF NL1,2,3,7,8,9-HxCDF NL2,3,4,6,7,8-HxCDF NL1,2,3,4,6,7,8,9-OCDD NL1,2,3,4,6,7,8,9-OCDF NL1,2,3,7,8-PeCDF NL2,3,4,7,8-PeCDF NLTEQ WHO2005 ND=03 4.5TEQ WHO2005 ND=0.54 4.5Total Heptachlorodibenzofuran NLTotal Heptachlorodibenzo-p-dioxin NLTotal Hexachlorodibenzofuran NLTotal Hexachlorodibenzo-p-dioxin NLTotal Pentachlorodibenzofuran NLTotal Pentachlorodibenzo-p-dioxin NL

Metals (mg/kg)Aluminum 77,000Arsenic 0.39Barium 15,000Beryllium 160Cadmium 70Calcium NLChromium NLCobalt 23Copper 3,100Iron 55,000Lead 400Magnesium NLManganese 1,800Mercury 10Nickel 1,500Potassium NLSodium NLVanadium 390Zinc 23,000

14AD-FA09-SB-C 14AD-FA10-SB-C 14AD-FA11-SB-C 14AD-FA12-SB-C 14AD-FA13-SB-C 14AD-FA14-SB-C 14AD-FA15-SB-C 14AD-FA16-SB-C 14AD-FA17-SB-C 14AD-FA18-SB-C

NA NA NA NA NA NA NA NA NA NANA NA NA NA NA NA NA NA NA NANA NA NA NA NA NA NA NA NA NANA NA NA NA NA NA NA NA NA NANA NA NA NA NA NA NA NA NA NANA NA NA NA NA NA NA NA NA NANA NA NA NA NA NA NA NA NA NANA NA NA NA NA NA NA NA NA NANA NA NA NA NA NA NA NA NA NANA NA NA NA NA NA NA NA NA NANA NA NA NA NA NA NA NA NA NANA NA NA NA NA NA NA NA NA NANA NA NA NA NA NA NA NA NA NANA NA NA NA NA NA NA NA NA NANA NA NA NA NA NA NA NA NA NANA NA NA NA NA NA NA NA NA NANA NA NA NA NA NA NA NA NA NANA NA NA NA NA NA NA NA NA NANA NA NA NA NA NA NA NA NA NANA NA NA NA NA NA NA NA NA NANA NA NA NA NA NA NA NA NA NANA NA NA NA NA NA NA NA NA NA

NA NA NA NA NA NA NA NA NA NA0.54 2.20 1.71 1.34 J+ 3.60 J 0.51 U 2.00 2.96 9.59 5.90NA NA NA NA NA NA NA NA NA NANA NA NA NA NA NA NA NA NA NANA NA NA NA NA NA NA NA NA NANA NA NA NA NA NA NA NA NA NA

5.57 4.72 7.04 12.4 5.60 J 3.06 3.88 5.00 6.97 7.40NA NA NA NA NA NA NA NA NA NANA NA NA NA NA NA NA NA NA NANA NA NA NA NA NA NA NA NA NA





Notes:

1 Value listed is for m-xylene.2 Value listed is for endosulfan.3 Value listed is the toxicity equivalent using the 2005 World Health Organization toxicity factors and using a zero value for non-detects.4 Value listed is the toxicity equivalent using the 2005 World Health Organization toxicity factors and using a 0.5 value for non-detects.## Station identification number14AD 14th Avenue Ditch Areabsw-si Below surface water-sediment interfaceC 12 to 24 inches bsw-siDUP DuplicateEPA U. S. Environmental Protection AgencyFA 14th AvenueHpCDD Heptachlorodibenzo-p-dioxinsHpCDF HeptachlorodibenzofuranHxCDD Hexachlorodibenzo-p-dioxinsHxCDF HexachlorodibenzofuransJ The analyte was positively identified; the associated value is the approximate concentration of the analyte in the sample.J+ The analyte was positively identified; the associated value is the approximate concentration of the analyte in the sample and may be biased high.J- The analyte was positively identified; the associated value is the approximate concentration of the analyte in the sample and may be biased low.µg/kg micrograms per kilogrammg/kg milligrams per kilogramNA Not analyzedND Not detectedNL Not listedOCDD Octachlorodibenzo-p-dioxinOCDF OctachlorodibenzofuranPeCDD Pentachlorodibenzo-p-dioxinPeCDF Pentachlorodibenzofuranpg/g picograms per gramRSL EPA Regional Screening Levels for residential soil, April 2012SB Subsurface soilTCDF TetrachlorodibenzofuranU The analyte was analyzed for, but was not detected at or above the associated value (reporting limit).BOLD Value exceeds the EPA RSL for residential soil



TABLE 5ON-SITE SURFACE SOIL SAMPLING ANALYTICAL RESULTS (0 TO 6 INCHES BGS)

Analyte EPA RSL

Volatile Organic Compounds (µg/kg)2-Butanone 28,000,000 NA NA NA 0.780 J NA NA NA NA NAAcetone 61,000,000 NA NA NA 3.20 J NA NA NA NA NACarbon disulfide 820,000 NA NA NA 0.918 J NA NA NA NA NAMethylcyclohexane NL NA NA NA 0.524 J NA NA NA NA NA

Semivolatile Organic Compounds (µg/kg)Acenaphthene 3,400,000 NA NA NA 101 J NA NA NA NA NAAcenaphthylene NL 4,280 169 J 4,140 984 J 849 2,000 298 J 14,100 J 10,800Anthracene 17,000,000 NA NA NA 1,060 J NA NA NA NA NABenzo(a)anthracene 150 6,580 269 J 10,100 3,100 2,990 6,790 621 J 74,300 J 22,900 JBenzo(a)pyrene 15 9,540 332 J 8,650 2,680 2,270 6,710 947 J 75,900 J 28,300 JBenzo(b)fluoranthene 150 19,600 765 23,400 7,660 6,120 16,200 2,480 180,000 J 67,400 JBenzo(g,h,i)perylene NL NA NA NA 1,440 NA NA NA NA NABenzo(k)fluoranthene 1,500 NA NA NA 2,570 NA NA NA NA NACarbazole NL 988 J 308 J 1,940 436 J 559 J 775 J 1,750 U 9,150 J 6,220 JChrysene 15,000 NA NA NA 5,580 NA NA NA NA NADibenz(a,h)anthracene 15 2,360 J 75.1 J 2,330 J 1,370 U 654 J 973 J 143 J 19,000 J 8,120 JDibenzofuran 78,000 NA NA NA 109 J NA NA NA NA NAFluoranthene 2,300,000 7,000 369 24,300 13,600 7,610 16,300 1,050 J 112,000 J 25,500 JFluorene 2,300,000 NA NA NA 250 J NA NA NA NA NAIndeno(1,2,3-cd)pyrene 150 8,280 256 J 10,000 1,550 2,160 3,140 432 J 57,100 J 25,300 JNaphthalene 3,600 192 J 352 U 75.8 J 48.2 J 38.2 J 1,700 U 1,750 U 639 J 254 JPentachlorophenol 890 2,840 J 1,760 U 4,270 J 6,860 U 1,610 J 3,330 J 8,730 U 91,800 U 8,570 JPhenanthrene NL 1,120 J 150 J 3,650 3,080 1,470 1,020 J 1,750 U 2,130 J 1,520 JPyrene 1,700,000 NA NA NA 7,600 NA NA NA NA NAPesticides (µg/kg) NA NA NA ND NA NA NA NA NAPCBs (µg/kg) NA NA NA ND NA NA NA NA NA

14AD-KM08-SS-A 14AD-KM08-SS-A-DUP14AD-KM02-SS-A 14AD-KM03-SS-A14AD-KM01-SS-A 14AD-KM04-SS-A 14AD-KM05-SS-A 14AD-KM06-SS-A 14AD-KM07-SS-A




Analyte EPA RSL 14AD-KM08-SS-A 14AD-KM08-SS-A-DUP14AD-KM02-SS-A 14AD-KM03-SS-A14AD-KM01-SS-A 14AD-KM04-SS-A 14AD-KM05-SS-A 14AD-KM06-SS-A 14AD-KM07-SS-A

Dioxins and Furans (pg/g)1,2,3,4,6,7,8-HpCDD NL NA NA NA 6,750 NA NA NA NA NA1,2,3,4,6,7,8-HpCDF NL NA NA NA 747 NA NA NA NA NA1,2,3,4,7,8,9-HpCDF NL NA NA NA 61.5 NA NA NA NA NA1,2,3,4,7,8-HxCDD NL NA NA NA 24.9 J NA NA NA NA NA1,2,3,6,7,8-HxCDD NL NA NA NA 111 NA NA NA NA NA1,2,3,7,8,9-HxCDD NL NA NA NA 40.8 J NA NA NA NA NA1,2,3,4,7,8-HxCDF NL NA NA NA 84.9 NA NA NA NA NA1,2,3,4,6,7,8,9-OCDD NL NA NA NA 95,800 J NA NA NA NA NA1,2,3,4,6,7,8,9-OCDF NL NA NA NA 3,870 NA NA NA NA NA2,3,4,6,7,8-HxCDF NL NA NA NA 15.5 J NA NA NA NA NA2,3,4,7,8-PeCDF NL NA NA NA 15.8 J NA NA NA NA NATEQ WHO2005 ND=01 4.5 NA NA NA 138 NA NA NA NA NATEQ WHO2005 ND=0.52 4.5 NA NA NA 139 NA NA NA NA NATotal Heptachlorodibenzofuran NL NA NA NA 3,690 NA NA NA NA NATotal Heptachlorodibenzo-p-dioxin NL NA NA NA 22,800 J NA NA NA NA NATotal Hexachlorodibenzofuran NL NA NA NA 1,060 NA NA NA NA NATotal Hexachlorodibenzo-p-dioxin NL NA NA NA 1,440 NA NA NA NA NATotal Pentachlorodibenzofuran NL NA NA NA 99.2 J+ NA NA NA NA NATotal Pentachlorodibenzo-p-dioxin NL NA NA NA 41.7 J+ NA NA NA NA NATotal Tetrachlorodibenzofuran NL NA NA NA 2.27 J NA NA NA NA NATotal Tetrachlorodibenzo-p-dioxin NL NA NA NA 5.09 J NA NA NA NA NA

Metals (mg/kg)Aluminum 77,000 NA NA NA 3,950 NA NA NA NA NAArsenic 0.39 7.87 1.93 4.28 14.9 3.38 3.20 2.83 13.4 20.8Barium 15,000 NA NA NA 20.8 NA NA NA NA NABeryllium 160 NA NA NA 0.27 NA NA NA NA NACadmium 70 NA NA NA 0.070 J NA NA NA NA NACalcium NL NA NA NA 57,800 NA NA NA NA NAChromium NL 7.49 8.71 11.3 11.5 8.89 9.43 13.0 6.91 J 11.6 JCobalt 23 NA NA NA 1.74 NA NA NA NA NACopper 3,100 NA NA NA 4.85 NA NA NA NA NAIron 55,000 NA NA NA 10,500 NA NA NA NA NALead 400 8.87 3.18 12.1 8.49 4.87 10.1 4.14 23.8 J 41.3 JMagnesium NL NA NA NA 1,440 NA NA NA NA NAManganese 1,800 NA NA NA 115 NA NA NA NA NAMercury 10 NA NA NA 0.046 NA NA NA NA NANickel 1,500 NA NA NA 4.81 NA NA NA NA NAPotassium NL NA NA NA 243 NA NA NA NA NASodium NL NA NA NA 34.5 J NA NA NA NA NAVanadium 390 NA NA NA 18.3 NA NA NA NA NAZinc 23,000 NA NA NA 73.3 NA NA NA NA NA




Notes:

1 Value listed is the toxicity equivalent using the 2005 World Health Organization toxicity factors and using a zero value for non-detects.2 Value listed is the toxicity equivalent using the 2005 World Health Organization toxicity factors and using a 0.5 value for non-detects.## Station identification number14AD 14th Avenue Ditch AreaA 0 to 6 inches bgsbgs Below ground surface DUP DuplicateEPA U. S. Environmental Protection AgencyHpCDD Heptachlorodibenzo-p-dioxinsHpCDF HeptachlorodibenzofuranHxCDD Hexachlorodibenzo-p-dioxinsHxCDF HexachlorodibenzofuransJ The analyte was positively identified; the associated value is the approximate concentration of the analyte in the sample.J+ The analyte was positively identified; the associated value is the approximate concentration of the analyte in the sample and may be biased high.KM Former Kerr-McGee Wood Treating Facilityµg/kg micrograms per kilogrammg/kg milligrams per kilogramNA Not analyzedND Not detectedNL Not listedOCDD Octachlorodibenzo-p-dioxinOCDF OctachlorodibenzofuranPeCDD Pentachlorodibenzo-p-dioxinPeCDF Pentachlorodibenzofuranpg/g picograms per gramRSL EPA Regional Screening Levels for residential soil, April 2012SS Surface soilTCDF TetrachlorodibenzofuransU The analyte was analyzed for, but was not detected at or above the associated value (reporting limit).BOLD Value exceeds the EPA RSL for residential soil



TABLE 6ON-SITE SUBSURFACE SOIL SAMPLING ANALYTICAL RESULTS (5 TO 6 FEET BGS)

Analyte EPA RSLVolatile Organic Compounds (µg/kg) ND ND ND ND ND ND ND NDSemivolatile Organic Compounds (µg/kg)Acenaphthylene NL 380 U 101 J 15.4 J 388 U 364 U 370 U 377 U 385 UBenzo(a)anthracene 150 380 U 473 372 U 388 U 364 U 370 U 377 U 75.4 JBenzo(a)pyrene 15 380 U 505 21.7 J 388 U 364 U 370 U 377 U 77.4 JBenzo(b)fluoranthene 150 380 U 812 372 U 388 U 364 U 370 U 377 U 166 JDibenz(a,h)anthracene 15 380 U 92.5 J 372 U 388 U 364 U 370 U 377 U 13.9 JFluoranthene 2,300,000 380 U 856 89.7 J 388 U 364 U 20.1 J 9.25 J 71.9 JIndeno(1,2,3-cd)pyrene 150 380 U 300 J 372 U 388 U 364 U 370 U 377 U 28.4 JPhenanthrene NL 380 U 44.8 J 21.1 J 388 U 364 U 370 U 377 U 385 UPesticides (µg/kg) NA NA NA ND NA NA NA NAPCBs (µg/kg) NA NA NA ND NA NA NA NADioxins and Furans (pg/g)1,2,3,4,6,7,8,9-OCDD NL NA NA NA 81.9 NA NA NA NA2,3,7,8-TCDF NL NA NA NA 0.589 J NA NA NA NATEQ WHO2005 ND=01 4.5 NA NA NA 0.0835 NA NA NA NATEQ WHO2005 ND=0.52 4.5 NA NA NA 1.11 NA NA NA NATotal Heptachlorodibenzo-p-dioxin NL NA NA NA 5.92 NA NA NA NATotal Tetrachlorodibenzofuran NL NA NA NA 0.589 J NA NA NA NAMetals (mg/kg)Aluminum 77,000 NA NA NA 8,900 NA NA NA NAArsenic 0.39 1.04 1.36 0.57 0.49 J+ 1.18 0.49 0.52 1.74Barium 15,000 NA NA NA 39.3 NA NA NA NABeryllium 160 NA NA NA 0.42 NA NA NA NACadmium 70 NA NA NA 0.028 J NA NA NA NACalcium NL NA NA NA 273 NA NA NA NAChromium NL 4.85 5.75 3.83 6.37 4.63 2.43 3.62 4.40Cobalt 23 NA NA NA 1.32 NA NA NA NACopper 3,100 NA NA NA 2.95 NA NA NA NAIron 55,000 NA NA NA 6,940 NA NA NA NALead 400 4.29 4.22 2.41 6.27 1.80 3.15 3.83 3.00Magnesium NL NA NA NA 318 NA NA NA NAManganese 1,800 NA NA NA 24.7 NA NA NA NAPotassium NL NA NA NA 124 NA NA NA NASelenium 390 NA NA NA 0.19 J NA NA NA NASodium NL NA NA NA 227 NA NA NA NAVanadium 390 NA NA NA 9.21 NA NA NA NAZinc 23,000 NA NA NA 8.41 NA NA NA NA

14AD-KM08-SB-B14AD-KM04-SB-B14AD-KM03-SB-B14AD-KM01-SB-B 14AD-KM02-SB-B 14AD-KM05-SB-B 14AD-KM06-SB-B 14AD-KM07-SB-B



TABLE 6ON-SITE SUBSURFACE SOIL SAMPLING ANALYTICAL RESULTS (5 TO 6 FEET BGS)

Notes:

1 Value listed is the toxicity equivalent using the 2005 World Health Organization toxicity factors and using a zero value for non-detects.2 Value listed is the toxicity equivalent using the 2005 World Health Organization toxicity factors and using a 0.5 value for non-detects.## Station identification number14AD 14th Avenue Ditch AreaB 5 to 6 feet bgsbgs Below ground surface DUP DuplicateEPA U. S. Environmental Protection AgencyHpCDD Heptachlorodibenzo-p-dioxinsHpCDF HeptachlorodibenzofuranHxCDD Hexachlorodibenzo-p-dioxinsHxCDF HexachlorodibenzofuransJ The analyte was positively identified; the associated value is the approximate concentration of the analyte in the sample.J+ The analyte was positively identified; the associated value is the approximate concentration of the analyte in the sample and may be biased high.KM Former Kerr-McGee Wood Treating Facilityµg/kg micrograms per kilogrammg/kg milligrams per kilogramNA Not analyzedND Not detectedNL Not listedOCDD Octachlorodibenzo-p-dioxinOCDF OctachlorodibenzofuranPeCDD Pentachlorodibenzo-p-dioxinPeCDF Pentachlorodibenzofuranpg/g picograms per gramRSL EPA Regional Screening Levels for residential soil, April 2012SB Subsurface soilTCDF TetrachlorodibenzofuransU The analyte was analyzed for, but was not detected at or above the associated value (reporting limit).BOLD Value exceeds the EPA RSL for residential soil



TABLE 7ON-SITE SUBSURFACE SOIL SAMPLING ANALYTICAL RESULTS (3 TO 3.5 AND 6 TO 7 FEET BGS)

Analyte EPA RSLVolatile Organic Compounds (µg/kg) ND ND ND ND ND ND ND ND ND

Semivolatile Organic Compounds (µg/kg)Acenaphthylene NL 376 U 384 U 4,880 366 U 384 U 378 U 375 U 394 U 369 UBenzo(a)anthracene 150 376 U 384 U 20,300 366 U 384 U 378 U 375 U 394 U 369 UBenzo(a)pyrene 15 376 U 384 U 18,200 366 U 384 U 378 U 21.0 J 394 U 369 UBenzo(b)fluoranthene 150 376 U 384 U 36,500 366 U 384 U 378 U 375 U 394 U 369 UCarbazole NL 376 U 384 U 1,370 J 366 U 384 U 378 U 375 U 394 U 369 UDibenz(a,h)anthracene 15 376 U 384 U 3,050 J 366 U 384 U 378 U 375 U 394 U 369 UFluoranthene 2,300,000 376 U 11.6 J 96,000 9.72 J 384 U 378 U 40.4 J 394 U 369 UIndeno(1,2,3-cd)pyrene 150 376 U 384 U 11,500 366 U 384 U 378 U 375 U 394 U 369 UNaphthalene 3,600 376 U 384 U 780 J 366 U 384 U 378 U 375 U 394 U 369 UPentachlorophenol 890 1,880 U 1,920 U 1,450 J 1,830 U 1,920 U 1,890 U 1,870 U 1,970 U 1,850 UPhenanthrene NL 376 U 384 U 28,500 366 U 384 U 378 U 375 U 394 U 369 U

Metals (mg/kg)Arsenic 0.39 1.06 1.37 4.56 0.66 0.31 J 0.31 J 0.45 U 1.19 0.36 JChromium NL 4.75 5.84 12.5 3.23 4.86 1.76 3.19 4.76 2.06Lead 400 4.33 4.37 14.4 2.46 5.47 1.10 1.48 4.96 1.49

14AD-KM02-SB-D 14AD-KM03-SB-C14AD-KM01-SB-C 14AD-KM02-SB-C 14AD-KM08-SB-C14AD-KM05-SB-C 14AD-KM06-SB-C 14AD-KM07-SB-C14AD-KM04-SB-C



TABLE 7ON-SITE SUBSURFACE SOIL SAMPLING ANALYTICAL RESULTS (3 TO 3.5 AND 6 TO 7 FEET BGS)

Notes:

## Station identification number14AD 14th Avenue Ditch Areabgs Below ground surface C 6 to 7 feet bgsD 3 to 3.5 feet bgsDUP DuplicateEPA U. S. Environmental Protection AgencyHpCDD Heptachlorodibenzo-p-dioxinsHpCDF HeptachlorodibenzofuranHxCDD Hexachlorodibenzo-p-dioxinsHxCDF HexachlorodibenzofuransJ The analyte was positively identified; the associated value is the approximate concentration of the analyte in the sample.KM Former Kerr-McGee Wood Treating Facilityµg/kg micrograms per kilogrammg/kg milligrams per kilogramNA Not analyzedND Not detectedNL Not listedOCDD Octachlorodibenzo-p-dioxinOCDF OctachlorodibenzofuranPeCDD Pentachlorodibenzo-p-dioxinPeCDF Pentachlorodibenzofuranpg/g picograms per gramRSL EPA Regional Screening Levels for residential soil, April 2012SB Subsurface soilTCDF TetrachlorodibenzofuransU The analyte was analyzed for, but was not detected at or above the associated value (reporting limit).BOLD Value exceeds the EPA RSL for residential soil



TABLE 8RESIDENTIAL/COMMERCIAL SURFACE SOIL SAMPLING ANALYTICAL RESULTS (0 TO 6 INCHES BGS)

Analyte EPA RSLVolatile Organic Compounds (µg/kg)Acetone 61,000,000 NA NA NA NA 7.39 J NA NASemivolatile Organic Compounds (µg/kg)Acenaphthylene NL 376 U 41.1 J 23.6 J 55.0 J 12.9 J 14.3 J 369 UAnthracene 17,000,000 NA NA NA NA 13.6 J NA NABenzo(a)anthracene 150 376 U 199 J 40.8 J 71.4 J 362 U 365 U 369 UBenzo(a)pyrene 15 17.1 J 166 J 52.5 J 61.0 J 17.8 J 18.3 J 369 UBenzo(b)fluoranthene 150 376 U 228 J 161 J 245 J 362 U 365 U 369 UBenzo(k)fluoranthene 1,500 NA NA NA NA 15.9 J NA NABis(2-Ethylhexyl)phthalate 35,000 62.2 J 40.2 J 223 J 183 J 29.2 J 365 U 369 UCarbazole NL 376 U 48.0 J 26.4 J 74.5 J 362 U 365 U 369 UChrysene 15,000 NA NA NA NA 19.8 J NA NADibenz(a,h)anthracene 15 376 U 32.2 J 382 U 390 U 362 U 365 U 369 UFluoranthene 2,300,000 19.0 J 330 J 147 J 401 22.4 J 21.7 J 369 UIndeno(1,2,3-cd)pyrene 150 376 U 98.2 J 47.3 J 52.9 J 362 U 365 U 369 UNaphthalene 3,600 376 U 76.5 J 382 U 390 U 362 U 365 U 369 UPhenanthrene NL 376 U 341 J 64.2 J 102 J 362 U 365 U 369 UPyrene 1,700,000 NA NA NA NA 17.3 J NA NAPesticides (µg/kg)Dieldrin 30 NA NA NA NA 1.77 J NA NAPCBs (µg/kg) NA NA NA NA ND NA NA

14AD-RP02-SS-A14AD-RP01-SS-A 14AD-RP03-SS-A 14AD-RP06-SS-A14AD-RP04-SS-A 14AD-RP05-SS-A14AD-RP03-SS-A-DUP




Analyte EPA RSL 14AD-RP02-SS-A14AD-RP01-SS-A 14AD-RP03-SS-A 14AD-RP06-SS-A14AD-RP04-SS-A 14AD-RP05-SS-A14AD-RP03-SS-A-DUP

Dioxins and Furans (pg/g)1,2,3,4,6,7,8-HpCDD NL NA NA NA NA 190 NA NA1,2,3,4,6,7,8-HpCDF NL NA NA NA NA 33.6 NA NA1,2,3,4,7,8,9-HpCDF NL NA NA NA NA 2.41 J NA NA1,2,3,4,7,8-HxCDD NL NA NA NA NA 1.06 J NA NA1,2,3,6,7,8-HxCDD NL NA NA NA NA 3.99 J NA NA1,2,3,7,8,9-HxCDD NL NA NA NA NA 2.03 J NA NA1,2,3,4,7,8-HxCDF NL NA NA NA NA 3.58 J NA NA1,2,3,6,7,8-HxCDF NL NA NA NA NA 1.67 J NA NA1,2,3,7,8,9-HxCDF NL NA NA NA NA 0.798 J NA NA1,2,3,4,6,7,8,9-OCDD NL NA NA NA NA 2,860 NA NA1,2,3,4,6,7,8,9-OCDF NL NA NA NA NA 111 NA NA1,2,3,7,8-PeCDD NL NA NA NA NA 0.375 J+ NA NA1,2,3,7,8-PeCDF NL NA NA NA NA 0.302 J+ NA NA2,3,4,6,7,8-HxCDF NL NA NA NA NA 1.92 J NA NA2,3,4,7,8-PeCDF NL NA NA NA NA 1.25 J NA NA2,3,7,8-TCDF NL NA NA NA NA 0.662 J+ NA NATEQ WHO2005 ND=01 4.5 NA NA NA NA 5.40 NA NATEQ WHO2005 ND=0.52 4.5 NA NA NA NA 5.45 NA NATotal Heptachlorodibenzofuran NL NA NA NA NA 116 NA NATotal Heptachlorodibenzo-p-dioxin NL NA NA NA NA 561 NA NATotal Hexachlorodibenzofuran NL NA NA NA NA 49.2 NA NATotal Hexachlorodibenzo-p-dioxin NL NA NA NA NA 44.6 NA NATotal Pentachlorodibenzofuran NL NA NA NA NA 10.2 NA NATotal Pentachlorodibenzo-p-dioxin NL NA NA NA NA 2.93 J NA NATotal Tetrachlorodibenzofuran NL NA NA NA NA 3.04 NA NATotal Tetrachlorodibenzo-p-dioxin NL NA NA NA NA 0.442 J NA NAMetals (mg/kg)Aluminum 77,000 NA NA NA NA 2,040 NA NAArsenic 0.39 1.62 1.15 2.66 1.78 1.46 1.77 0.80Barium 15,000 NA NA NA NA 28.5 NA NACalcium NL NA NA NA NA 722 NA NAChromium NL 7.34 5.93 12.6 9.97 3.90 7.46 9.31Cobalt 23 NA NA NA NA 1.37 NA NACopper 3,100 NA NA NA NA 14.4 NA NAIron 55,000 NA NA NA NA 4,490 NA NALead 400 30.6 27.0 367 284 23.9 11.2 6.09Magnesium NL NA NA NA NA 104 NA NAManganese 1,800 NA NA NA NA 204 NA NAMercury 10 NA NA NA NA 0.018 NA NANickel 1,500 NA NA NA NA 1.08 J NA NAPotassium NL NA NA NA NA 70.8 NA NASodium NL NA NA NA NA 7.48 J NA NAThallium 0.78 NA NA NA NA 0.11 J NA NAVanadium 390 NA NA NA NA 6.85 NA NAZinc 23,000 NA NA NA NA 12.8 NA NA




Notes:

1 Value listed is the toxicity equivalent using the 2005 World Health Organization toxicity factors and using a zero value for non-detects.2 Value listed is the toxicity equivalent using the 2005 World Health Organization toxicity factors and using a 0.5 value for non-detects.## Station identification number14AD 14th Avenue Ditch AreaA 0 to 6 inches bgsbgs Below ground surface DUP DuplicateEPA U. S. Environmental Protection AgencyHpCDD Heptachlorodibenzo-p-dioxinsHpCDF HeptachlorodibenzofuranHxCDD Hexachlorodibenzo-p-dioxinsHxCDF HexachlorodibenzofuransJ The analyte was positively identified; the associated value is the approximate concentration of the analyte in the sample.J+ The analyte was positively identified; the associated value is the approximate concentration of the analyte in the sample and may be biased high.µg/kg micrograms per kilogrammg/kg milligrams per kilogramNA Not analyzedND Not detectedNL Not listedOCDD Octachlorodibenzo-p-dioxinOCDF OctachlorodibenzofuranPeCDD Pentachlorodibenzo-p-dioxinPeCDF Pentachlorodibenzofuranpg/g picograms per gramRP Residential propertyRSL EPA Regional Screening Levels for residential soil, April 2012SS Surface soilTCDF TetrachlorodibenzofuransU The analyte was analyzed for, but was not detected at or above the associated value (reporting limit).BOLD Value exceeds the EPA RSL for residential soil



TABLE 9RESIDENTIAL/COMMERCIAL SUBSURFACE SOIL SAMPLING ANALYTICAL RESULTS (5 TO 6 FEET BGS)

Analyte EPA RSLVolatile Organic Compounds (µg/kg)Benzene 1,100 4.19 U 7.20 U 4.38 U 197 3.75 U 4.10 Um,p-Xylene1 590,000 4.19 U 7.20 U 4.38 U 69.1 3.75 U 4.10 Uo-Xylene 690,000 4.19 U 7.20 U 4.38 U 2.07 J 3.75 U 4.10 USemivolatile Organic Compounds (µg/kg) ND ND ND ND ND NDMetals (mg/kg)Arsenic 0.39 2.40 0.44 U 3.15 0.23 J 0.47 U 5.31Chromium NL 6.66 2.00 6.74 2.00 3.17 4.40Lead 400 2.99 2.43 6.92 3.53 2.16 1.98

14AD-RP02-SB-B14AD-RP01-SB-B 14AD-RP03-SB-B 14AD-RP06-SB-B14AD-RP04-SB-B 14AD-RP05-SB-B




Notes:

1 Value listed is for m-xylene.## Station identification number14AD 14th Avenue Ditch AreaB 5 to 6 feet bgsbgs Below ground surface DUP DuplicateEPA U. S. Environmental Protection AgencyHpCDD Heptachlorodibenzo-p-dioxinsHpCDF HeptachlorodibenzofuranHxCDD Hexachlorodibenzo-p-dioxinsHxCDF HexachlorodibenzofuransJ The analyte was positively identified; the associated value is the approximate concentration of the analyte in the sample.µg/kg micrograms per kilogrammg/kg milligrams per kilogramNA Not analyzedND Not detectedNL Not listedOCDD Octachlorodibenzo-p-dioxinOCDF OctachlorodibenzofuranPeCDD Pentachlorodibenzo-p-dioxinPeCDF Pentachlorodibenzofuranpg/g picograms per gramRP Residential propertyRSL EPA Regional Screening Levels for residential soil, April 2012SB Subsurface soilTCDF TetrachlorodibenzofuransU The analyte was analyzed for, but was not detected at or above the associated value (reporting limit).BOLD Value exceeds the EPA RSL for residential soil




Analyte EPA RSL

Volatile Organic Compounds (µg/kg)Benzene 1,100 4.21 U 4.51 U 3.99 U 125 4.33 U 5.66 UCyclohexane 7,000,000 NA NA NA 13.2 NA NAEthylbenzene 5,400 NA NA NA 2.13 J NA NAIsopropylbenzene (Cumene) 2,100,000 NA NA NA 5.34 NA NAm,p-Xylene1 590,000 4.21 U 4.51 U 3.99 U 0.933 J 4.33 U 5.66 UMethylcyclohexane NL NA NA NA 10.6 NA NAo-Xylene 690,000 4.21 U 4.51 U 3.99 U 0.700 J 4.33 U 5.66 Utert-Butyl methyl ether (MTBE) 43,000 NA NA NA 25.9 NA NAToluene 5,000,000 NA NA NA 0.952 J NA NA

Semivolatile Organic Compounds (µg/kg)2-Methylnaphthalene 230,000 NA NA NA 18.3 J NA NAAnthracene 17,000,000 NA NA NA 18.8 J NA NABenzo(a)pyrene 15 364 U 379 U 379 U 20.3 J 385 U 367 UBenzo(k)fluoranthene 1,500 NA NA NA 28.1 J NA NAChrysene 15,000 NA NA NA 19.8 J NA NAFluoranthene 2,300,000 364 U 379 U 379 U 30.9 J 385 U 367 UFluorene 2,300,000 NA NA NA 12.0 U NA NAPhenanthrene NL 364 U 379 U 379 U 10.4 J 385 U 367 UPyrene 1,700,000 NA NA NA 27.7 J NA NAPesticides (µg/kg) NA NA NA ND NA NAPCBs (µg/kg) NA NA NA ND NA NA

Dioxins and Furans (pg/g)1,2,3,4,6,7,8-HpCDD NL NA NA NA 13.3 NA NA1,2,3,6,7,8-HxCDD NL NA NA NA 0.207 J NA NA1,2,3,7,8,9-HxCDD NL NA NA NA 0.867 J NA NA1,2,3,4,6,7,8,9-OCDD NL NA NA NA 169 NA NA2,3,7,8-TCDF NL NA NA NA 0.485 J NA NATEQ WHO2005 ND=02 4.5 NA NA NA 0.291 NA NATEQ WHO2005 ND=0.53 4.5 NA NA NA 1.27 NA NATotal Heptachlorodibenzo-p-dioxin NL NA NA NA 29.8 NA NATotal Hexachlorodibenzo-p-dioxin NL NA NA NA 11.3 NA NATotal Pentachlorodibenzo-p-dioxin NL NA NA NA 1.62 J NA NATotal Tetrachlorodibenzofuran NL NA NA NA 0.838 J NA NATotal Tetrachlorodibenzo-p-dioxin NL NA NA NA 3.76 NA NA

Metals (mg/kg)Aluminum 77,000 NA NA NA 2,960 NA NAArsenic 0.39 2.98 0.46 U 1.37 0.29 J 1.07 4.42Barium 15,000 NA NA NA 39.4 NA NACalcium NL NA NA NA 587 NA NAChromium NL 6.34 3.47 3.77 3.04 6.52 3.54Copper 3,100 NA NA NA 1.55 NA NAIron 55,000 NA NA NA 1,860 NA NALead 400 2.76 2.48 3.61 2.57 3.58 1.78Magnesium NL NA NA NA 128 NA NAManganese 1,800 NA NA NA 15.8 NA NANickel 1,500 NA NA NA 0.95 J NA NAPotassium NL NA NA NA 75.5 NA NASodium NL NA NA NA 46.0 J NA NAVanadium 390 NA NA NA 4.76 NA NAZinc 23,000 NA NA NA 5.00 NA NA

14AD-RP02-SB-C14AD-RP01-SB-C 14AD-RP03-SB-C 14AD-RP06-SB-C14AD-RP04-SB-C 14AD-RP05-SB-C




Notes:

1 Value listed is for m-xylene.2 Value listed is the toxicity equivalent using the 2005 World Health Organization toxicity factors and using a zero value for non-detects.3 Value listed is the toxicity equivalent using the 2005 World Health Organization toxicity factors and using a 0.5 value for non-detects.## Station identification number14AD 14th Avenue Ditch Areabgs Below ground surface C 6 to 7 feet bgsDUP DuplicateEPA U. S. Environmental Protection AgencyHpCDD Heptachlorodibenzo-p-dioxinsHpCDF HeptachlorodibenzofuranHxCDD Hexachlorodibenzo-p-dioxinsHxCDF HexachlorodibenzofuransJ The analyte was positively identified; the associated value is the approximate concentration of the analyte in the sample.µg/kg micrograms per kilogrammg/kg milligrams per kilogramNA Not analyzedND Not detectedNL Not listedOCDD Octachlorodibenzo-p-dioxinOCDF OctachlorodibenzofuranPeCDD Pentachlorodibenzo-p-dioxinPeCDF Pentachlorodibenzofuranpg/g picograms per gramRP Residential propertyRSL EPA Regional Screening Levels for residential soil, April 2012SB Subsurface soilTCDF TetrachlorodibenzofuransU The analyte was analyzed for, but was not detected at or above the associated value (reporting limit).BOLD Value exceeds the EPA RSL for residential soil



TABLE 11COMPARISON OF PAH IMMUNOASSAY AND ANALYTICAL LABORATORY RESULTS

Laboratory Results Immunoassay

14AD-FA00-SB-B 2.85 >0.066514AD-FA00-SB-C 5.96 >0.066514AD-FA00-SD-A 3.78 >0.066514AD-FA01-SB-B * 213 >0.066514AD-FA01-SB-C * 270 >0.066514AD-FA01-SD-A * 89.1 >0.066514AD-FA01-SD-A-DUP * 90.3 >0.066514AD-FA02-SB-B 2.07 >0.066514AD-FA02-SB-C 0.078 >0.066514AD-FA02-SD-A 1.12 >0.066514AD-FA03-SB-B 2.44 >0.066514AD-FA03-SB-C 5.15 >0.066514AD-FA03-SD-A 0.613 >0.066514AD-FA04-SB-B 1.66 >0.066514AD-FA04-SB-C 0.985 >0.066514AD-FA04-SD-A 3.88 >0.066514AD-FA05-SB-B 1.02 >0.066514AD-FA05-SB-C ND >0.066514AD-FA05-SD-A 0.439 >0.066514AD-FA06-SB-B 1.57 >0.066514AD-FA06-SB-C 1.44 >0.066514AD-FA06-SD-A 3.63 >0.066514AD-FA07-SB-B 34.7 >0.066514AD-FA07-SB-B-DUP 3.69 >0.066514AD-FA07-SB-C 3.09 >0.066514AD-FA07-SB-C-DUP 5.65 >0.066514AD-FA07-SD-A 5.06 >0.066514AD-FA08-SB-B * 56.1 >0.066514AD-FA08-SB-C * 75.5 >0.066514AD-FA08-SD-A 72.3 >0.066514AD-FA09-SB-B 1.03 >0.066514AD-FA09-SB-C 1.34 >0.066514AD-FA09-SD-A 1.25 >0.066514AD-FA10-SB-B 4.04 >0.066514AD-FA10-SB-C 0.510 >0.066514AD-FA10-SD-A 8.41 >0.066514AD-FA11-SB-B 2.97 >0.066514AD-FA11-SB-C 4.76 >0.066514AD-FA11-SD-A 4.58 >0.066514AD-FA12-SB-B 76.3 >0.066514AD-FA12-SB-C 17.1 >0.066514AD-FA12-SD-A 6.68 >0.066514AD-FA13-SB-B 7.81 >0.066514AD-FA13-SB-C 1.95 >0.066514AD-FA13-SD-A 9.45 >0.066514AD-FA14-SB-B 0.753 >0.066514AD-FA14-SB-C 0.650 >0.066514AD-FA14-SD-A 2.40 >0.066514AD-FA15-SB-B 0.689 >0.066514AD-FA15-SB-C 1.28 >0.066514AD-FA15-SD-A 0.415 >0.066514AD-FA16-SB-B 24.0 >0.0665

Sample IdentificationTotal PAH Results in ppm




Laboratory Results Immunoassay


14AD-FA16-SB-C 0.584 >0.066514AD-FA16-SD-A 0.483 >0.066514AD-FA17-SB-B 2.22 >0.066514AD-FA17-SB-C 5.37 >0.066514AD-FA17-SD-A 5.61 >0.066514AD-FA18-SB-B 2.83 >0.066514AD-FA18-SB-C 1.22 >0.066514AD-FA18-SD-A 7.32 >0.066514AD-KM01-SB-B ND >0.066514AD-KM01-SB-C ND >0.066514AD-KM01-SS-A 95.7 >0.066514AD-KM02-SB-B 3.18 >0.066514AD-KM02-SB-C 0.0116 >0.066514AD-KM02-SS-A 2.39 >0.066514AD-KM03-SB-B 0.148 0.026414AD-KM03-SB-C 0.00972 0.018914AD-KM03-SS-A 122 >0.066514AD-KM04-SB-B * ND 0.0035814AD-KM04-SB-C ND >0.066514AD-KM04-SS-A * 51.3 >0.066514AD-KM05-SB-B ND 0.0078314AD-KM05-SB-C ND 0.030714AD-KM05-SS-A 24.2 >0.066514AD-KM06-SB-B 0.0199 0.0082314AD-KM06-SB-C 0.0614 0.023914AD-KM06-SS-A 53.1 >0.066514AD-KM07-SB-B 0.00925 0.025214AD-KM07-SB-C ND 0.029614AD-KM07-SS-A 5.97 >0.066514AD-KM08-SB-B 0.433 >0.066514AD-KM08-SB-C ND 0.0065014AD-KM08-SS-A 535 >0.066514AD-KM08-SS-A-DUP 299 >0.0665




Notes:

* The full PAH list (16 compounds) was reported for these samples.## Station identification number> Greater than14AD 14th Avenue Ditch AreaA 0 to 3 inches bsw-si for FA samplesA 0 to 6 inches bgs for KM samplesB 6 to 12 inches bsw-si for FA samplesB 5 to 6 feet bgs for KM samplesbgs Below ground surface bsw-si Below surface water-sediment interfaceC 12 to 24 inches bsw-si for FA samplesC 6 to 7 feet bgs for KM samplesDUP DuplicateFA 14th AvenueKM Former Kerr-McGee Wood Treating FacilityND Not detectedPAH Polynuclear aromatic hydrocarbonsppm Parts per millionSB Subsurface soilSD SedimentSS Surface soil



TABLE 12COMPARISON OF PAH ULTRAVIOLET FLUORESCENCE SPECTROSCOPY AND ANALYTICAL

LABORATORY RESULTS

Laboratory ResultUVF Restek Calibration

Standard RPDUVF United Kingdom Calibration Standard RPD

14AD-FA00-SB-B 2.85 41.8 / 37.1 174 / 171 16.4 14114AD-FA00-SB-C 5.96 59.3 163 20.6 11014AD-FA00-SD-A 3.78 24.2 146 7.7 6814AD-FA01-SB-B * 213 2239 165 243.6 1314AD-FA01-SB-C * 270 2279 158 234.6 1414AD-FA01-SD-A * 89.1 102.8 14 156.9 5514AD-FA01-SD-A-DUP * 90.3 46.2 65 83.8 7.514AD-FA02-SB-B 2.07 73 189 18.5 16014AD-FA02-SB-C 0.078 4 192 1.2 17614AD-FA02-SD-A 1.12 1.3 15 1.6 3514AD-FA03-SB-B 2.44 66.1 186 6.9 9614AD-FA03-SB-C 5.15 39.1 153 4.5 1314AD-FA03-SD-A 0.613 7.2 169 4.8 15514AD-FA04-SB-B 1.66 17.0 / 23.9 164 / 174 8.3 13314AD-FA04-SB-C 0.985 39.1 190 12.1 17014AD-FA04-SD-A 3.88 14.4 115 4.2 7.914AD-FA05-SB-B 1.02 16.4 177 5.8 14014AD-FA05-SB-C ND 30.8 NC 8.7 NC14AD-FA05-SD-A 0.439 34.8 / 18.7 195 / 191 11.8 18614AD-FA06-SB-B 1.57 38.1 / 23.4 184 / 175 12.4 15514AD-FA06-SB-C 1.44 6.5 127 2 3314AD-FA06-SD-A 3.63 13.1 113 3.9 7.214AD-FA07-SB-B 34.7 65.8 / 46.5 62/29 18.7 6014AD-FA07-SB-B-DUP 3.69 18.9 135 5.4 3814AD-FA07-SB-C 3.09 27.4 / 67.4 159/182 8.4 9214AD-FA07-SB-C-DUP 5.65 53.4 162 16.3 9714AD-FA07-SD-A 5.06 96.1 180 30.5 14314AD-FA08-SB-B * 56.1 628.8 167 74.2 2814AD-FA08-SB-C * 75.5 715.7 162 85.3 1214AD-FA08-SD-A 72.3 616.3 158 75.2 414AD-FA09-SB-B 1.03 15.9 176 4.9 13114AD-FA09-SB-C 1.34 17 171 5.3 11914AD-FA09-SD-A 1.25 14.2 168 5 12014AD-FA10-SB-B 4.04 81.7 / 71.7 181/179 26.3 14714AD-FA10-SB-C 0.510 9.8 180 3.3 14614AD-FA10-SD-A 8.41 94.7 / 76.8 167/161 35.1 12314AD-FA11-SB-B 2.97 76.3 185 24.4 15714AD-FA11-SB-C 4.76 88.1 179 26.6 13914AD-FA11-SD-A 4.58 57.3 170 19 12214AD-FA12-SB-B 76.3 321.4 123 102.4 2914AD-FA12-SB-C 17.1 227.5 172 70 12114AD-FA12-SD-A 6.68 56.2 158 23.3 11114AD-FA13-SB-B 7.81 98.8 171 51.3 14714AD-FA13-SB-C 1.95 105.7 193 45.2 18314AD-FA13-SD-A 9.45 72.2 154 23.8 8614AD-FA14-SB-B 0.753 17.9 184 6.6 15914AD-FA14-SB-C 0.650 21.2 188 7.2 15914AD-FA14-SD-A 2.40 67.7 186 16.5 14914AD-FA15-SB-B 0.689 13.7 181 4 14114AD-FA15-SB-C 1.28 5.4 123 2.1 4914AD-FA15-SD-A 0.415 7.6 179 2.6 14514AD-FA16-SB-B 24.0 21.9 / 66.6 9.2/94 NA NC14AD-FA16-SB-C 0.584 30.2 / 20.7 96/189 10.2 17814AD-FA16-SD-A 0.483 71.3 197 62.7 19714AD-FA17-SB-B 2.22 63.2 186 20.1 16014AD-FA17-SB-C 5.37 261.8 192 32.4 14314AD-FA17-SD-A 5.61 41.8 153 13.9 8514AD-FA18-SB-B 2.83 77.8 186 22.1 155





LABORATORY RESULTS

Laboratory ResultUVF Restek Calibration

Standard RPDUVF United Kingdom Calibration Standard RPD


14AD-FA18-SB-C 1.22 25.2 182 8.2 14814AD-FA18-SD-A 7.32 61.3 157 22.8 10314AD-KM01-SB-B ND <0.1 NC <0.1 NC14AD-KM01-SB-C ND <0.1 NC <0.1 NC14AD-KM01-SS-A 95.7 238.8 86 84.4 1314AD-KM02-SB-B 3.18 32.2 164 11.4 11314AD-KM02-SB-C 0.0116 <0.1 NC 0.3 18514AD-KM02-SS-A 2.39 20.9 159 18 15314AD-KM03-SB-B 0.148 <0.1 NC <0.1 NC14AD-KM03-SB-C 0.00972 <0.1 NC <0.1 NC14AD-KM03-SS-A 122 187 / 267.7 42/75 79.7 4214AD-KM04-SB-B * ND 0.1 NC 0.1 NC14AD-KM04-SB-C ND <0.1 NC <0.1 NC14AD-KM04-SS-A * 51.3 73.7 36 30.5 5114AD-KM05-SB-B ND <0.1 NC <0.1 NC14AD-KM05-SB-C ND <0.1 NC <0.1 NC14AD-KM05-SS-A 24.2 68.9 96 24.7 214AD-KM06-SB-B 0.0199 0.9 191 0.3 17514AD-KM06-SB-C 0.0614 0.8 171 0.3 13214AD-KM06-SS-A 53.1 319.4 143 126 8114AD-KM07-SB-B 0.00925 <0.1 NC <0.1 NC14AD-KM07-SB-C ND <0.1 NC <0.1 NC14AD-KM07-SS-A 5.97 33.1 139 12.6 7114AD-KM08-SB-B 0.433 2.3 137 0.8 6014AD-KM08-SB-C ND <0.1 NC <0.1 NC14AD-KM08-SS-A 535 1539 97 402.9 2814AD-KM08-SS-A-DUP 299 994.1 108 269.7 10




LABORATORY RESULTS

Notes:

* The full PAH list (16 compounds) was reported for these samples.## Station identification number< Less than14AD 14th Avenue Ditch AreaA 0 to 3 inches bsw-si for FA samplesA 0 to 6 inches bgs for KM samplesB 6 to 12 inches bsw-si for FA samplesB 5 to 6 feet bgs for KM samplesbgs Below ground surface bsw-si Below surface water-sediment interfaceC 12 to 24 inches bsw-si for FA samplesC 6 to 7 feet bgs for KM samplesDUP DuplicateFA 14th AvenueKM Former Kerr-McGee Wood Treating FacilityNA Not analyzedNC Not calculableND Not detectedPAH Polynuclear aromatic hydrocarbonsppm Parts per millionRPD Relative percent differenceSB Subsurface soilSD SedimentSS Surface soilUVF Ultraviolet fluorescence



TABLE 13COMPARISON OF CARCINOGENIC BENZO(A)PYRENE EQUIVALENTS AND ANALYTICAL

LABORATORY BENZO(A)PYRENE RESULTS

Laboratory Benzo(a)pyrene Results

UVF Restek Calibration Standard (cBaP) RPD

UVF United Kingdom Calibration Standard (cBaP) RPD

14AD-FA00-SB-B 0.431 2.94 / 3.37 149 / 155 2.73 14514AD-FA00-SB-C 0.465 1.13 83.4 1.72 11514AD-FA00-SD-A 0.496 0.40 21.4 0.69 32.714AD-FA01-SB-B 4.71 64.16 173 26.29 13914AD-FA01-SB-C 4.28 30.1 150 11.76 93.314AD-FA01-SD-A 2.2 6.01 92.8 6.01 92.814AD-FA01-SD-A-DUP 2.9 3.09 6.34 3.11 7.0014AD-FA02-SB-B 0.0951 0.28 98.6 0.92 16314AD-FA02-SB-C ND 0.07 NC 0.14 NC14AD-FA02-SD-A 0.0921 0.11 17.7 0.16 53.914AD-FA03-SB-B 0.0617 <0.48 NC <0.48 NC14AD-FA03-SB-C 0.148 0.35 81.1 0.32 73.514AD-FA03-SD-A 0.0371 0.14 116 0.19 13514AD-FA04-SB-B 0.219 1.13 / 0.71 135 / 106 1.26 14114AD-FA04-SB-C 0.112 0.90 156 1.01 16014AD-FA04-SD-A 0.317 0.28 12.4 0.45 34.714AD-FA05-SB-B 0.189 0.55 97.7 0.58 10214AD-FA05-SB-C ND 0.46 NC 0.72 NC14AD-FA05-SD-A 0.0854 0.72 / 0.97 158 / 168 1.08 17114AD-FA06-SB-B 0.184 1.23 / 0.55 148 / 99.7 1.69 16114AD-FA06-SB-C 0.155 0.18 14.9 0.26 50.614AD-FA06-SD-A 0.386 0.31 21.8 0.44 13.114AD-FA07-SB-B 3.83 0.98 / 0.67 119 / 140 1.92 66.414AD-FA07-SB-B-DUP 0.354 0.36 1.68 0.54 41.614AD-FA07-SB-C 0.372 0.54 / 1.72 36.8 / 129 0.66 55.814AD-FA07-SB-C-DUP 0.674 <0.79 NC 1.15 52.214AD-FA07-SD-A 0.516 2.17 123 3.62 15014AD-FA08-SB-B 0.955 8.89 161 5.31 13914AD-FA08-SB-C 1.28 9.20 151 5.42 12414AD-FA08-SD-A 2.04 8.33 121 4.93 82.914AD-FA09-SB-B 0.127 0.32 86.4 0.42 10714AD-FA09-SB-C 0.159 0.41 88.2 0.56 11214AD-FA09-SD-A 0.172 0.52 101 0.55 10514AD-FA10-SB-B 0.457 2.18 / 2.63 131 / 141 3.02 14714AD-FA10-SB-C 0.077 0.30 119 0.44 14114AD-FA10-SD-A 1.07 3.63 / 3.77 109 / 112 3.52 10714AD-FA11-SB-B 0.432 3.22 153 3.55 15714AD-FA11-SB-C 0.719 3.13 125 3.94 13814AD-FA11-SD-A 0.601 1.95 106 2.54 12314AD-FA12-SB-B 9.64 14.79 42.1 17.85 59.714AD-FA12-SB-C 2.88 7.90 93.1 10.61 11514AD-FA12-SD-A 1.21 4.89 121 4.41 11414AD-FA13-SB-B 0.78 <1.82 NC 3.10 12014AD-FA13-SB-C 0.181 <1.75 NC 3.02 17714AD-FA13-SD-A 1.45 1.50 3.39 2.19 40.714AD-FA14-SB-B 0.135 0.71 136 0.65 13114AD-FA14-SB-C 0.117 0.62 136 0.62 13614AD-FA14-SD-A 0.40 0.53 28.9 0.93 80.514AD-FA15-SB-B 0.117 0.45 117 0.53 12814AD-FA15-SB-C 0.237 0.26 9.26 0.31 26.714AD-FA15-SD-A 0.128 0.39 101 0.44 11014AD-FA16-SB-B 2.7 0.60 / 1.70 127 / 45.5 NA NC14AD-FA16-SB-C 0.0833 1.07 / 0.65 171 / 155 1.08 17114AD-FA16-SD-A 0.0606 4.06 194 2.17 18914AD-FA17-SB-B 0.349 1.26 113 1.79 13514AD-FA17-SB-C 0.221 1.93 159 1.22 13914AD-FA17-SD-A 0.455 0.98 73.1 1.34 98.614AD-FA18-SB-B 0.319 1.17 114 1.76 13914AD-FA18-SB-C 0.144 0.78 138 0.80 13914AD-FA18-SD-A 1.05 4.00 117 4.54 12514AD-KM01-SB-B ND <0.01 NC <0.01 NC14AD-KM01-SB-C ND <0.01 NC <0.01 NC14AD-KM01-SS-A 8.85 19.85 76.7 19.55 75.414AD-KM02-SB-B 0.505 0.89 55.2 1.11 74.9

Results in ppmSample Identification





Laboratory Benzo(a)pyrene Results

UVF Restek Calibration Standard (cBaP) RPD

UVF United Kingdom Calibration Standard (cBaP) RPD

Results in ppmSample Identification

14AD-KM02-SB-C ND <0.06 NC <0.06 NC14AD-KM02-SS-A 0.332 1.38 122 1.23 11514AD-KM03-SB-B 0.0217 <0.02 NC <0.02 NC14AD-KM03-SB-C ND <0.01 NC <0.01 NC14AD-KM03-SS-A 8.54 14.31 / 12.96 50.5 / 41.1 17.06 66.614AD-KM04-SB-B ND <0.02 NC <0.02 NC14AD-KM04-SB-C ND <0.02 NC <0.02 NC14AD-KM04-SS-A 2.68 5.40 67.3 6.31 80.814AD-KM05-SB-B ND <0.02 NC <0.02 NC14AD-KM05-SB-C ND <0.02 NC <0.02 NC14AD-KM05-SS-A 2.27 1.63 32.8 2.19 3.5914AD-KM06-SB-B ND <0.02 NC 0.03 NC14AD-KM06-SB-C 0.021 0.03 35.3 0.04 62.314AD-KM06-SS-A 6.71 24.20 113 28.25 12314AD-KM07-SB-B ND <0.02 NC <0.02 NC14AD-KM07-SB-C ND <0.02 NC <0.02 NC14AD-KM07-SS-A 0.947 1.46 42.6 1.40 38.614AD-KM08-SB-B 0.0774 0.13 50.7 0.16 69.614AD-KM08-SB-C ND <0.02 NC <0.02 NC14AD-KM08-SS-A 75.9 60.96 21.8 45.42 50.214AD-KM08-SS-A-DUP 28.3 62.65 75.5 38.91 31.6





Notes:

## Station identification number< Less than14AD 14th Avenue Ditch AreaA 0 to 3 inches bsw-si for FA samplesA 0 to 6 inches bgs for KM samplesB 6 to 12 inches bsw-si for FA samplesB 5 to 6 feet bgs for KM samplesbgs Below ground surface bsw-si Below surface water-sediment interfaceC 12 to 24 inches bsw-si for FA samplesC 6 to 7 feet bgs for KM samplescBaP Carcinogenic benzo(a)pyrene equivalentsDUP DuplicateFA 14th AvenueKM Former Kerr-McGee Wood Treating FacilityNA Not analyzedNC Not calculableND Not detectedppm Parts per millionRPD Relative percent differenceSB Subsurface soilSD SedimentSS Surface soilUVF Ultraviolet fluorescence



TABLE 14INTERIM REMEDIAL INVESTIGATION GROUNDWATER SAMPLING ANALYTICAL RESULTS

Analyte EPA RSL

Volatile Organic Compounds (µg/L)Benzene 0.39 0.099 U 0.099 U 327 0.099 Um,p-Xylene1 190 0.237 U 0.237 U 131 0.237 Uo-Xylene 190 0.147 U 0.147 U 29.4 0.147 U

Semivolatile Organic Compounds (µg/L)Naphthalene 0.14 0.038 U 0.038 U 26.5 0.038 UPhenol 4,500 0.153 U 0.153 U 8.23 J 0.153 UDioxins (pg/L) ND ND NA NAPesticides (µg/L) ND ND NA NAPCBs (µg/L) ND ND NA NA

Metals (µg/L)Aluminum 16,000 63.3 67.3 NA NAArsenic 0.045 1.00 U 1.00 U 6.90 J 1.00 UBarium 2,900 57.1 59.4 NA NABeryllium 16 0.29 J 0.31 J NA NACalcium NL 5,290 5,630 NA NACobalt 4.7 4.51 4.67 NA NACopper 620 0.31 J 0.27 J NA NAMagnesium NL 1,600 1,680 NA NAManganese 320 163 167 NA NANickel 300 2.32 2.43 NA NAPotassium NL 1,840 1,920 NA NASelenium 78 0.23 J 0.22 J NA NASodium NL 8,620 9,070 NA NAVanadium 78 0.085 U 0.13 J NA NAZinc 4,700 3.55 J 4.61 J NA NA

Notes:

1 Value listed is for m-xylene.## Station identification number14AD 14th Avenue Ditch Areaµg/L micrograms per litermg/L milligrams per literNA Not analyzedND Not detectedDUP DuplicateEPA U. S. Environmental Protection AgencyGW GroundwaterNL Not Listedpg/L picograms per literRP Residential propertyJ The analyte was positively identified; the associated value is the approximate concentration of the

analyte in the sample.RSL EPA Regional Screening Levels for tapwater, April 2012U The analyte was analyzed for, but was not detected at or above the associated value (reporting limit).BOLD Value exceeds the EPA RSL for tapwater, April 2012

14AD-RP02-GW 14AD-RP02-GW-DUP 14AD-RP04-GW 14AD-RP06-GW



TABLE 1514TH AVENUE DITCH SUBSURFACE SOIL SAMPLING

ADDITIONAL DIOXINS/FURANS ANALYTICAL RESULTS

Analyte EPA RSL

1,2,3,4,6,7,8-HpCDD NL 45.7 1990 317

1,2,3,4,6,7,8-HpCDF NL 8.42 293 49.4

1,2,3,4,7,8,9-HpCDF NL 4.97 U 29 4.83 U

1,2,3,4,7,8-HxCDD NL 4.97 U 22.7 U 4.83 U

1,2,3,4,7,8-HxCDF NL 4.97 U 44.3 4.83 U

1,2,3,6,7,8-HxCDD NL 4.97 U 39.3 5.55

1,2,3,6,7,8-HxCDF NL 4.97 U 22.7 U 4.83 U

1,2,3,7,8,9-HxCDD NL 4.97 U 22.7 U 4.83 U

1,2,3,7,8,9-HxCDF NL 4.97 U 22.7 U 4.83 U

1,2,3,7,8-PeCDD NL 4.97 U 22.7 U 4.83 U

1,2,3,7,8-PeCDF NL 4.97 U 22.7 U 4.83 U

1,2,3,4,6,7,8,9-OCDD NL 729 29800 J 5140 J

1,2,3,4,6,7,8,9-OCDF NL 40.7 1140 237

2,3,4,6,7,8-HxCDF NL 4.97 U 22.7 U 4.83 U

2,3,4,7,8-PeCDF NL 4.97 U 22.7 U 4.83 U

2,3,7,8-TCDD NL 0.995 U 4.55 U 0.967 U

2,3,7,8-TCDF NL 0.995 U 4.55 U 0.967 U

TEQ WHO2005 ND=0 4.5 0.772 40.7 5.83

TEQ WHO2005 ND=0.5 4.5 6.39 64 11.1

Total Heptachlorodibenzofuran NL 41.2 1340 221

Total Heptachlorodibenzo-p-dioxin NL 134 5800 1040

Total Hexachlorodibenzofuran NL 9.12 486 68.8

Total Hexachlorodibenzo-p-dioxin NL 4.97 U 269 43.6

Total Pentachlorodibenzofuran NL 4.97 U 23.1 4.83 U

Total Pentachlorodibenzo-p-dioxin NL 4.97 U 22.7 U 4.83 U

Total Tetrachlorodibenzofuran NL 0.995 U 4.55 U 0.967 U

Total Tetrachlorodibenzo-p-dioxin NL 0.995 U 4.55 U 0.967 U

14AD-FA05-SB-C14AD-FA02-SB-C 14AD-FA18-SB-B

Dioxins and Furans (pg/g)



TABLE 1514TH AVENUE DITCH SUBSURFACE SOIL SAMPLING

ADDITIONAL DIOXINS/FURANS ANALYTICAL RESULTS

Notes:

## Station identification number

14AD 14th Avenue Ditch Area

EPA U. S. Environmental Protection Agency

FA 14th Avenue

HpCDD Heptachlorodibenzo-p-dioxins

HpCDF Heptachlorodibenzofuran

HxCDD Hexachlorodibenzo-p-dioxins

HxCDF Hexachlorodibenzofurans

J The analyte was positively identified; the associated value is the approximate concentration of the analyte in the sample.

NA Not analyzed

ND Not detected

NL Not listed

OCDD Octachlorodibenzo-p-dioxin

OCDF Octachlorodibenzofuran

PeCDD Pentachlorodibenzo-p-dioxin

PeCDF Pentachlorodibenzofuran

pg/g picograms per gram

RSL EPA Regional Screening Levels for residential soil, April 2012

SD Sediment

TCDF Tetrachlorodibenzofuran

U The analyte was analyzed for, but was not detected at or above the associated value (reporting limit).




TABLE 1614TH AVENUE DITCH SURFACE WATER SAMPLING ANALYTICAL RESULTS

Analyte

Screening Level

Volatile Organic Compounds (µg/L) ND ND ND ND ND

Semivolatile Organic Compounds (µg/L)1,4-Dioxane 0.67c 0.736 J 0.652 J 10.3 U 10.4 U 1.22 JBenzo(b)fluoranthene 0.029c

0.102 U 0.102 U 0.103 U 0.119 0.103 U

Pesticides (µg/L)delta-BHC NL 0.00606 J 0.051 U 0.051 U 0.051 U 0.050 UPCBs (µg/L) ND ND ND ND ND

Dioxins and Furans (pg/L)1,2,3,4,6,7,8-HpCDD NL 52.6 U 51.9 U 57.9 U 60.3 U 62.51,2,3,4,6,7,8,9-OCDD NL 105 U 223 250 932 9671,2,3,7,8-PeCDD NL 5.75 J 1.52 J 2.38 J 60.3 U 59.7 U2,3,7,8-TCDD 30a 1.26 J 10.4 U 11.6 U 12.1 U 11.9 U2,3,7,8-TCDF NL 1.45 J 10.4 U 11.6 U 12.1 U 11.9 UTEQ WHO2005 ND=0 30a 5.9 1.59 2.46 0.28 0.92TEQ WHO2005 ND=0.5 30a 6.43 2.17 3.04 1.36 1.99Total Heptachlorodibenzo-p-dioxin NL 52.6 U 59.9 57.9 U 189 206Total Pentachlorodibenzo-p-dioxin NL 5.75 J 1.52 J 2.38 J 60.3 U 59.7 UTotal Tetrachlorodibenzofuran NL 1.45 J 10.4 U 11.6 U 12.1 U 11.9 UTotal Tetrachlorodibenzo-p-dioxin NL 1.26 J 10.4 U 11.6 U 12.1 U 11.9 U

Metals (µg/L)Aluminum 50 to 200b 429 97.7 145 157 J 109 JBarium 2,000a 65.5 52.2 46.2 44.3 40.8Calcium NL 34,000 32,900 34,100 35,000 32,500Cobalt 4.7c 1.09 0.28 J 0.22 J 0.2 J 0.16 JCopper 1,300a 1.01 J+ 1.00 U 1.00 U 1.00 U 1.00 UIron 300b 2,400 1,050 671 485 395Lead 15a 1.08 0.78 J 0.78 J 1.01 0.70 JMagnesium NL 3,900 3,920 3,800 4,070 3,730Manganese 50b 887 315 98.6 51.4 J 34.8 JNickel 300c 1.7 0.83 J 0.71 J 0.73 J 0.66 JPotassium NL 3,760 3,750 3,710 4,030 3,710Sodium NL 7,150 7,170 6,870 7,490 6,890Thallium 2.0a 0.078 J 0.11 J 0.06 U 0.06 U 0.06 UZinc 5,000b

28.9 20.0 U 20.0 U 20.0 U 20.0 U

14AD-FA22-SW-DUP14AD-FA19-SW 14AD-FA20-SW 14AD-FA21-SW 14AD-FA22-SW



TABLE 1614TH AVENUE DITCH SURFACE WATER SAMPLING ANALYTICAL RESULTS

Notes:a Value listed is the federal primary drinking water Maximum Contaminant Level (MCL), May 2009.b Value listed is the federal secondary drinking water MCL, May 2009.c Value listed is the Regional Screening Level (RSL) for tapwater, April 2012.## Station identification number14AD Fourteenth Avenue Ditch AreaDUP DuplicateEPA U. S. Environmental Protection AgencyFA Fourteenth AvenueJ The analyte was positively identified; the associated value is the approximate concentration of the analyte in the sample.J+ The analyte was positively identified; the associated value is the approximate concentration of the analyte in the sample and may be biased high.MCL Maximum Comtaminant Levelµg/L Micrograms per literND Not detectedNL No Screening Level Listedpg/L Picograms per literRSL EPA Region IV Regional Screening Levels for tapwater, April 2012SW Surface waterU The analyte was analyzed for, but was not detected at or above the associated value (reporting limit).BOLD Value exceeds the referenced screening level

These surface water samples were collected on September 26, 2012.




APPENDIX C

PHOTOGRAPHIC LOG

(21 Pages)

TETRA TECH

Appendix C – Page 1


Final Interim Remedial Investigation Report

OFFICIAL PHOTOGRAPH NO. 1 GREENFIELD ENVIRONMENTAL MULTISTATE TRUST, LLC

Contract No.: 103P2117010 Location: 14th Avenue Ditch Area

Former Kerr-McGee Wood Treating Facility 2300 14th Avenue North Columbus, Lowndes County, Mississippi

Orientation: Northeast Date: June 5, 2012 Photographer: Paul Prys, Tetra Tech Subject: The 14th Avenue Ditch located along the northeastern portion of the former Kerr-McGee

Wood Treating facility (Site) located in Columbus, Lowndes County, Mississippi.

TETRA TECH







Orientation: North Date: June 5, 2012 Photographer: Paul Prys, Tetra Tech Subject: The 14th Avenue Ditch located along the northern portion of the Site, across the street from

Buttons and Bows Daycare, located at 2703 14th Avenue North.

TETRA TECH







Orientation: East-southeast Date: June 5, 2012 Photographer: Paul Prys, Tetra Tech Subject: The 14th Avenue Ditch located along the northern portion of the Site.

TETRA TECH







Orientation: East Date: June 5, 2012 Photographer: Paul Prys, Tetra Tech Subject: The 14th Avenue Ditch located along northeastern portion of the Site.

TETRA TECH







Orientation: Northwest Date: June 5, 2012 Photographer: Paul Prys, Tetra Tech Subject: The 14th Avenue Ditch and inactive railroad bridge located along northeastern portion of the

Site.

TETRA TECH







Orientation: Northeast Date: June 5, 2012 Photographer: Paul Prys, Tetra Tech Subject: The 14th Avenue Ditch located along the northern portion of the Site.

TETRA TECH







Orientation: Not Applicable Date: July 19, 2012 Photographer: Leslie Shaver, Tetra Tech Subject: Soil samples 14AD-FA00-SD-A, 14AD-FA00-SB-B, and 14AD-FA00-SB-C (left to right)

collected during the 14th Avenue Ditch interim remedial investigation. Note the dark stained soil.

TETRA TECH







Orientation: West Date: July 19, 2012 Photographer: Chris Draper, Tetra Tech Subject: Soil boring RP01 situated on the northern side of the Mt. Zion Missionary Baptist Church

parking lot located at 2221 14th Avenue North. This location was offset approximately 10 feet north of the right-of-way because of overhead and underground utilities. During soil sampling, no elevated readings of volatile organic compounds (VOCs) were detected by a photoionization detector (PID), and no odor was perceived.

TETRA TECH







Orientation: Southeast Date: July 19, 2012 Photographer: Chris Draper, Tetra Tech Subject: Soil boring RP02 located at 1402 North 23rd Street.

TETRA TECH







Orientation: Not Applicable Date: July 19, 2012 Photographer: Chris Jones, Tetra Tech Subject: Soil borings from RP02 located at 1402 North 23rd Street. On the right is the soil boring from 0

to 4 feet below ground surface (bgs). On the left is the soil boring from 4 to 6 feet bgs.

TETRA TECH







Orientation: Northwest Date: July 20, 2012 Photographer: Chris Draper, Tetra Tech Subject: Newly installed permanent monitoring well located at 1402 North 23rd Street (RP02).

TETRA TECH







Orientation: Northeast Date: July 19, 2012 Photographer: Chris Draper, Tetra Tech Subject: Soil boring RP03 located south of the former service station parking lot at the intersection of

14th Avenue and Martin Luther King, Jr. Drive. As a result of the location of power lines and underground utilities, the soil boring was offset approximately 10 feet north of the right-of-way onto the former service station property. During soil sampling, no elevated readings of VOCs were detected by a PID, and no odor was detected.

TETRA TECH







Orientation: Northwest Date: July 19, 2012 Photographer: Chris Draper, Tetra Tech Subject: A tote labeled as used oil and surface staining were observed at the former service station located

at the intersection of 14th Avenue North and Martin Luther King, Jr. Drive, near RP03. This area is upgradient of the sheen observed in the 14th Avenue Ditch after the rainfall on July 18, 2012.

TETRA TECH







Orientation: Southwest Date: July 19, 2012 Photographer: Chris Draper, Tetra Tech Subject: Oily sheen emanating south of RP03 which is north of 14th Avenue. This drainage ditch flows

south and converges with the 14th Avenue Ditch. Used oil totes and surface staining were observed upgradient of this location.

TETRA TECH







Orientation: North Date: July 19, 2012 Photographer: Chris Draper, Tetra Tech Subject: A sheen was observed on water in the 14th Avenue Ditch across from Gardner's Superette (a

gas station and convenience store located at 2501 14th Avenue North) after rainfall on July 18, 2012. This location is downstream of the convergence with the drainage ditch north of 14th Avenue (See Photograph 14).

TETRA TECH







Orientation: West Date: July 19, 2012 Photographer: Chris Draper, Tetra Tech Subject: Soil boring RP04 located on the southeastern side of Gardner's Superette (a gas station and

convenience store located at 2501 14th Avenue North).

TETRA TECH







Orientation: Not Applicable Date: July 19, 2012 Photographer: Chris Jones, Tetra Tech Subject: Soil borings from RP04 located at 2501 14th Avenue North. On the left is the soil boring from

0 to 4 feet bgs. On the right is the soil boring from 4 to 6 feet bgs.

TETRA TECH







Orientation: Not Applicable Date: July 19, 2012 Photographer: Chris Jones, Tetra Tech Subject: Soil boring from RP04 located at 2501 14th Avenue North. On the left is the soil boring from 8

to 12 feet bgs; soils are tan in color. On the right is the soil boring from 12 to 16 feet bgs; soils are grey in color. A 2-inch monitoring well was installed at this location. A groundwater sample collected from this well contained benzene.

TETRA TECH







Orientation: West Date: July 20, 2012 Photographer: Chris Draper, Tetra Tech Subject: Completed flush-mounted monitoring well installation at 2501 14th Avenue North (RP04). A

groundwater sample collected from this well contained benzene.

TETRA TECH







Orientation: West Date: July 19, 2012 Photographer: Chris Draper, Tetra Tech Subject: Soil boring RP05 situated on the southeastern side of the Divine Destiny Apostolic Church

parking lot located at 2601 14th Avenue North.

TETRA TECH







Orientation: West Date: July 19, 2012 Photographer: Chris Jones, Tetra Tech Subject: Walker-Hill Environmental, Inc. (subcontracted driller procured by Tetra Tech) installing a 2-

inch monitoring well at station RP06, located at 2703 14th Avenue North (Buttons and Bows Daycare).


APPENDIX D

LOGBOOK NOTES

(25 Pages)

Appendix D - Page 1

Appendix D - Page 2

Appendix D - Page 3

Appendix D - Page 4

Appendix D - Page 5

Appendix D - Page 6

Appendix D - Page 7

Appendix D - Page 8

Appendix D - Page 9

Appendix D - Page 10


APPENDIX E

BORING LOGS AND MONITORING WELL COMPLETION DIAGRAMS

(36 Pages)

BORING ID: FA00WELL ID: NA

TOTAL FOOTAGE: 2PROJECT No.: 103P2117010

Project: 14th Avenue Ditch SamplingAddress: Former Kerr-McGee Wood Treating Facility, 2300 14th Avenue North Hand Auger

Columbus, Lowndes County, Mississippi

Casing SamplerType: NA Type: Hand Auger Date: - Latitude

Size: NA Size: 1.5-inch WL (ref.): N/A Longitude

WL (bgs): - Elev.GW Elev.: -

Cor

e In

terv

al

Dep

th (

in)

Per

cent

Rec

over

y

Tim

e

PID

(pp

mv)

Sam

ples

sen

t to

Lab

Soil Description Boring CompletionBoring Completion

Notes

(0-3) 1 NA 1235 0.00 X

2 Sandy SILT

3

4

5

(6-12) 6 NA 1240 0.0 X

7

8

9

10

11

(12-24) 12 NA 1245 0.0 X

13

14

15

16

17

18

19

20

21

22

23

24

Notes: bsw-si - below surface water-sediment interfaceWater present in ditch during sampling activities."No creosote odor noted" refers to no olfactory observations in the field. NA - Not ApplicableSample collected from (0-3), (6-12), and (12-24) inches bsw-si.

NA

Sample ID: 14AD-FA00-SD-A Sandy SILT, medium brown, ~60% gravel, poorly sorted, and saturated. No creosote odor noted.

Sample ID: 14AD-FA00-SB-B Sandy SILT, brown, ~50% gravel, poorly sorted, and saturated. No creosote odor noted.

Sample ID: 14AD-FA00-SB-C Sandy SILT, medium brown, ~10% gravel, poorly sorted, and saturated. No creosote odor noted.

7/19/2012

Drilling Co.:Drill Method:

Groundwater Survey Rig Type:Start Date: 7/19/2012Finish Date:









Cor

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Dep

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in)

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Tim

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PID

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Notes

(0-3) 1 NA 1120 0.00 X

2 Sandy SILT

3

4

5

(6-12) 6 NA 1140 0.0 X

7

8

9

10

11

(12-24) 12 NA 1215 0.0 X

13

14

15

16

17

18

19

20

21

22

23

24


NA

Sample ID: 14AD-FA01-SD-A Clayey Sandy SILT, grey, trace gravel, poorly sorted, sheen seen on sample, and saturated. No creosote odor noted.

Sample ID: 14AD-FA01-SB-B Sandy SILT, greyish brown, sheen seen on sample, and saturated. No creosote odor noted.

Sample ID: 14AD-FA01-SB-C Clayey Sandy SILT, grey, sheen seen on sample, and saturated. Black oily substance seen in sample. Creosote odor noted.

7/19/2012











Cor

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Dep

th (

in)

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cent

Rec

over

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Tim

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PID

(pp

mv)

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Lab


Notes

(0-3) 1 NA 1030 0.00 X

2 Sandy SILT

3

4

5

(6-12) 6 NA 1040 0.0 X Sandy Silty CLAY

7

8

9

10

11

(12-24) 12 NA 1055 0.0 X

13 Sandy Silty CLAY

14

15

16

17

18

19

20

21

22

23

24


NA

Sample ID: 14AD-FA02-SD-A Sandy SILT, brownish grey, slightly clayey, and saturated. No creosote odor noted.

Sample ID: 14AD-FA02-SB-B Sandy Silty CLAY, brownish grey, and saturated. No creosote odor noted.

Sample ID: 14AD-FA02-SB-C Sandy Silty CLAY, brownish grey, and saturated. No creosote odor noted.

7/19/2012











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in)

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cent

Rec

over

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Tim

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PID

(pp

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Lab


Notes

(0-3) 1 NA 0935 0.00 X

2 Sandy SILT

3

4

5

(6-12) 6 NA 955 0.0 X

7

8

9

10

11

(12-24) 12 NA 1010 0.0 X

13

14

15

16

17

18

19

20

21

22

23

24


NA

Sample ID: 14AD-FA03-SD-A Clayey Sandy SILT, grey, trace gravel, and saturated. Slight creosote odor noted.

Sample ID: 14AD-FA03-SB-B Clayey Sandy SILT, grey, trace gravel, slight sheen seen on sample, and saturated. No creosote odor noted.

Sample ID: 14AD-FA03-SB-C Clayey Sandy SILT, grey, trace gravel, slight sheen seen on sample, and saturated. Creosote odor noted.

7/19/2012











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al

Dep

th (

in)

Per

cent

Rec

over

y

Tim

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PID

(pp

mv)

Sam

ples

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Lab


Notes

(0-3) 1 NA 0850 0.00 X

2 Sandy SILT

3

4

5

(6-12) 6 NA 910 0.0 X

7

8

9

10

11

(12-24) 12 NA 925 0.0 X

13 Clayey SILT

14

15

16

17

18

19

20

21

22

23

24


NA

Sample ID: 14AD-FA04-SD-A Clayey Sandy SILT, grey, trace gravel, and saturated. No creosote odor noted.

Sample ID: 14AD-FA04-SB-B Clayey Sandy SILT, grey, trace gravel, and saturated. No creosote odor noted.

Sample ID: 14AD-FA04-SB-C Sandy Clayey SILT, light to medium grey, and saturated. No creosote odor noted.

7/19/2012











Cor

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in)

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cent

Rec

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Tim

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PID

(pp

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Sam

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Lab


Notes

(0-3) 1 NA 0755 0.00 X

2 Sandy SILT

3

4

5

(6-12) 6 NA 805 0.0 X

7

8

9

10

11

(12-24) 12 NA 825 0.0 X

13

14

15

16

17

18

19

20

21

22

23

24


NA

Sample ID: 14AD-FA05-SD-A Sandy SILT, brownish grey, slightly clayey, trace gravel, and saturated. No creosote odor noted.

Sample ID: 14AD-FA05-SB-B Sandy SILT, grey, slightly clayey, trace gravel, and saturated. No creosote odor noted.

Sample ID: 14AD-FA05-SB-C Sandy SILT, grey, slightly clayey, trace gravel, and saturated. No creosote odor noted.

7/19/2012











Cor

e In

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al

Dep

th (

in)

Per

cent

Rec

over

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Tim

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PID

(pp

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Sam

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Lab


Notes

(0-3) 1 NA 0700 0.00 X

2 Sandy SILT

3

4

5

(6-12) 6 NA 0720 0.0 X

7

8

9

10

11

(12-24) 12 NA 0730 0.0 X

13

14

15

16

17

18

19

20

21

22

23

24


NA

Sample ID: 14AD-FA06-SD-A Sandy SILT, grey, slightly clayey, 5% gravel, poorly sorted, and saturated. No creosote odor noted.

Sample ID: 14AD-FA06-SB-B Sandy SILT, grey, slightly clayey, trace gravel, and saturated. No creosote odor noted.

Sample ID: 14AD-FA06-SB-C Sandy SILT, grey, slightly clayey, 5% gravel, poorly sorted, and saturated. No creosote odor noted.

7/19/2012











Cor

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al

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in)

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cent

Rec

over

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Tim

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PID

(pp

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Lab


Notes

(0-3) 1 NA 1135 0.00 X

2 Silty SAND

3

4

5

(6-12) 6 NA 1140 0.0 X

7

8

9

10

11

(12-24) 12 NA 1155 0.0 X

13

14

15

16

17

18

19

20

21

22

23

24


NA

Sample ID: 14AD-FA07-SD-A Silty SAND, grey, trace gravel, poorly sorted, and saturated. No creosote odor noted.

Sample ID: 14AD-FA07-SB-B Silty SAND, dark greyish brown, trace gravel, poorly sorted, and saturated. No creosote odor noted.

Sample ID: 14AD-FA07-SB-C Silty SAND, dark grey, ~20% gravel, poorly sorted, and saturated. No creosote odor noted.

7/18/2012











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Dep

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in)

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cent

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Tim

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PID

(pp

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ples

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Lab


Notes

(0-3) 1 NA 1010 0.00 X

2 Sandy SILT

3

4

5

(6-12) 6 NA 1020 0.0 X Clayey SILT

7

8

9

10

11

(12-24) 12 NA 1030 0.0 X

13 Sandy SILT

14

15

16

17

18

19

20

21

22

23

24


NA

Sample ID: 14AD-FA08-SD-A Sandy Clayey SILT, dark grey, ~10% gravel, poorly sorted, and saturated. No creosote odor noted.

Sample ID: 14AD-FA08-SB-B Sandy Clayey SILT, greyish brown, and saturated. No creosote odor noted.

Sample ID: 14AD-FA08-SB-C Clayey Sandy SILT, grey to dark grey, black shiny substance seen, and saturated. Creosote odor noted.

7/18/2012











Cor

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al

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in)

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cent

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Tim

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PID

(pp

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Lab


Notes

(0-3) 1 NA 0800 0.00 X

2 Sandy SILT

3

4

5

(6-12) 6 NA 0815 0.0 X Clayey SILT

7

8

9

10

11

(12-24) 12 NA 0820 0.0 X

13 Clayey SILT

14

15

16

17

18

19

20

21

22

23

24


NA

Sample ID: 14AD-FA09-SD-A Sandy SILT, greyish brown, ~20% gravel, poorly sorted, and saturated. No creosote odor noted.

Sample ID: 14AD-FA09-SB-B Sandy Clayey SILT, greyish brown, and saturated. No creosote odor noted.

Sample ID: 14AD-FA09-SB-C Sandy Clayey SILT, greyish brown, trace gravel, and saturated. No creosote odor noted.

7/18/2012











Cor

e In

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al

Dep

th (

in)

Per

cent

Rec

over

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Tim

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PID

(pp

mv)

Sam

ples

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Lab


Notes

(0-3) 1 NA 0710 0.00 X

2 Sandy SILT

3

4

5

(6-12) 6 NA 730 0.0 X

7

8

9

10

11

(12-24) 12 NA 745 0.0 X

13

14

15

16

17

18

19

20

21

22

23

24


NA

Sample ID: 14AD-FA10-SD-A Sandy SILT, slightly reddish and medium brown, slightly clayey, ~40% gravel, poorly sorted, and saturated. No creosote odor noted.

Sample ID: 14AD-FA10-SB-B Sandy SILT, greyish brown, ~10% gravel, poorly sorted, and saturated. No creosote odor noted.

Sample ID: 14AD-FA10-SB-C Sandy SILT, reddish brown, 5% gravel, and saturated. No creosote odor noted.

7/18/2012











Cor

e In

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al

Dep

th (

in)

Per

cent

Rec

over

y

Tim

e

PID

(pp

mv)

Sam

ples

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t to

Lab


Notes

(0-3) 1 NA 0630 0.00 X

2 Sandy SILT

3

4

5

(6-12) 6 NA 645 0.0 X

7

8

9

10

11

(12-24) 12 NA 655 0.0 X

13

14

15

16

17

18

19

20

21

22

23

24


NA

Sample ID: 14AD-FA11-SD-A Sandy SILT, medium brown, 5% gravel, poorly sorted, and saturated. No creosote odor noted.

Sample ID: 14AD-FA11-SB-B Sandy SILT, medium brown, slightly clayey, and saturated. No creosote odor noted.

Sample ID: 14AD-FA11-SB-C Sandy SILT, medium brown, 10% gravel, poorly sorted, and saturated. No creosote odor noted.

7/18/2012











Cor

e In

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Dep

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in)

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Rec

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PID

(pp

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Lab


Notes

(0-3) 1 NA 1720 0.00 X

2 Sandy SILT

3

4

5

(6-12) 6 NA 1735 0.0 X

7

8

9

10

11

(12-24) 12 NA 1740 0.0 X

13

14

15

16

17

18

19

20

21

22

23

24


NA

Sample ID: 14AD-FA12-SD-A Sandy SILT, medium brown, 50% gravel, poorly sorted, and saturated. No creosote odor noted.

Sample ID: 14AD-FA12-SB-B Sandy SILT, medium brown, 50% gravel, poorly sorted, and saturated. No creosote odor noted.

Sample ID: 14AD-FA12-SB-C Sandy SILT, medium brown, 40% gravel, poorly sorted, and saturated. No creosote odor noted.

7/17/2012











Cor

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al

Dep

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in)

Per

cent

Rec

over

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Tim

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PID

(pp

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Lab


Notes

(0-3) 1 NA 1630 0.00 X

2 Sandy SILT

3

4

5

(6-12) 6 NA 1645 0.0 X

7

8

9

10

11

(12-24) 12 NA 1700 0.0 X

13

14

15

16

17

18

19

20

21

22

23

24


NA

Sample ID: 14AD-FA13-SD-A Sandy SILT, medium brown, >50% gravel, poorly sorted, and saturated. No creosote odor noted.

Sample ID: 14AD-FA13-SB-B Sandy SILT, light brown, 50% gravel, and saturated. No creosote odor noted.

Sample ID: 14AD-FA13-SB-C Sandy SILT, grey, loose gravel and clay, and saturated. Ceosote odor noted. Note: Two auger bucket samples collected from same interval to obtain suffucient amount of soil for sample. 1st auguer, odor noticed. No readings detected above background.

7/17/2012











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Dep

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in)

Per

cent

Rec

over

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Tim

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PID

(pp

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Lab


Notes

(0-3) 1 NA 1540 0.00 X

2 Sandy SILT

3

4

5

(6-12) 6 NA 1620 0.0 X

7

8

9

10

11

(12-24) 12 NA 1605 0.0 X

13

14

15

16

17

18

19

20

21

22

23

24


NA

Sample ID: 14AD-FA14-SD-A Sandy SILT, dark brown, slightly sandy, and saturated. No creosote odor noted.

Sample ID: 14AD-FA14-SB-B Sandy SILT, light brown, trace gravel, and saturated. No creosote odor noted.

Sample ID: 14AD-FA14-SB-C Sandy SILT, light brown, trace gravel, and saturated. No creosote odor noted.

7/17/2012











Cor

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al

Dep

th (

in)

Per

cent

Rec

over

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Tim

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PID

(pp

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Lab


Notes

(0-3) 1 NA 1510 0.00 X

2 Sandy SILT

3

4

5

(6-12) 6 NA 1520 0.0 X

7

8

9

10

11

(12-24) 12 NA 1530 0.0 X

13

14

15

16

17

18

19

20

21

22

23

24


NA

Sample ID: 14AD-FA15-SD-A Sandy SILT, light brown, well sorted, and saturated. No creosote odor noted.

Sample ID: 14AD-FA15-SB-B Sandy SILT, light brown, trace gravel, and saturated. No creosote odor noted.

Sample ID: 14AD-FA15-SB-C Sandy SILT, light brown, 10% gravel, and saturated. No creosote odor noted.

7/17/2012











Cor

e In

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al

Dep

th (

in)

Per

cent

Rec

over

y

Tim

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PID

(pp

mv)

Sam

ples

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Lab


Notes

(0-3) 1 NA 1145 0.00 X

2 Silty SAND

3

4

5

(6-12) 6 NA 1155 0.0 X

7

8

9

10

11

(12-24) 12 NA 1200 0.0 X

13 Clayey Silty SAND

14

15

16

17

18

19

20

21

22

23

24



Groundwater Survey Rig Type:Start Date: 7/17/2012Finish Date: 7/17/2012

NA

Sample ID: 14AD-FA16-SD-A Silty SAND, medium brown, poorly sorted, abundant gravel, and saturated. No creosote odor noted.

Sample ID: 14AD-FA16-SB-B Silty SAND, medium brown, poorly sorted, abundant gravel, and saturated. No creosote odor noted.

Sample ID: 14AD-FA16-SB-C Clayey Silty SAND, medium brown, poorly sorted sand, moderate gravel, and saturated. No creosote odor noted.









Cor

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Dep

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Per

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Rec

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Tim

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PID

(pp

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Lab


Notes

(0-3) 1 NA 1100 0.00 X

2 Sandy SILT

3

4

5

(6-12) 6 NA 1115 0.0 X Silty SAND

7

8

9

10

11

(12-24) 12 NA 1125 0.0 X

13 Sandy Silty CLAY

14

15

16

17

18

19

20

21

22

23

24




NA

Sample ID: 14AD-FA17-SD-A Sandy SILT, medium brown, poorly sosrted sand and gravel, saturated. No creosote odor noted.

Sample ID: 14AD-FA17-SB-B Silty SAND, medium brown, poorly sorted, abundant gravel, and saturated. No creosote odor noted.

Sample ID: 14AD-FA17-SB-C Sandy Silty CLAY, brownish grey, poorly sorted sand, and trace gravel. No creosote odor noted.









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Soil Description Boring CompletionBoring

Completion Notes

(0-3) 1 NA 1025 0.00 X

2 Sandy SILT

3

4

5

(6-12) 6 NA 1035 0.0 X

7

8

9

10

11

(12-24) 12 NA 1040 0.0 X

13

14

15

16

17

18

19

20

21

22

23

24


7/17/2012Start Date: 7/17/2012


Groundwater Survey Rig Type:

Finish Date:NA

Sample ID: 14AD-FA18-SB-B Sandy SILT, silt increases with depth, dark grey, abundant pea size gravel. No creosote odor noted.

Sample ID: 14AD-FA18-SB-C Same as above. No creosote odor noted.

Sample ID: 14AD-FA18-SD-A Sandy SILT, dark grey, abundant pea size gravel. No creosote odor noted.


BORING ID: KM01WELL ID: NA


Project: 14th Avenue Ditch Sampling Walker-HillAddress: Former Kerr-McGee Wood Treating Facility, 2300 14th Avenue North DPT





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Completion Notes

(0-4) 0.25 NA 1050 0.00 X

0.5 Silty SAND

0.75

1

1.25

1.5 Sandy SILT

1.75

2

2.25

2.5

2.75

3

3.25

3.5 Sandy CLAY

3.75

(4-6) 4 NA 1100 0.0 X

4.25

4.5

4.75

5 NA 1110 0.0 X

5.25 Sandy SILT

5.5

5.75

6

6.25

6.5

Notes: bgs - below ground surface"No creosote odor noted" refers to no olfactory observations in the field. NA - Not ApplicableSample collected from (0-0.5), (4-5), (5-6) ft bgs.



Sample ID: 14AD-KM01-SB-C Sandy SILT grey, abundant fine grain sand, soft, and saturated. No creosote odor noted.

Start Date: 7/18/2012Finish Date: 7/18/2012

NA

Sample ID: 14AD-KM01-SS-A Silty SAND, dark brown and reddish brown, minor silt, hard, damp, and abundant gravel. No creosote odor noted.

Remainder of core (0.5 to 4 ft) - Sandy SILT, light brown, moist, and hard. Grades to sandy CLAY and grey.

Sample ID: 14AD-KM01-SB-B Sandy CLAY, grey, and quickly grades to sandy SILT, moderate sand, hard, and moist. No creosote odor noted.









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Lab


Completion Notes

(0-4) 0.25 NA 0950 0.00 X

0.5 Clayey SAND

0.75

1

1.25

1.5

1.75

2

2.25

2.5

2.75

3 1015 0.0 X

3.25

3.5 Silty SAND

3.75

(4-6) 4 NA 1000 0.0 X

4.25 Sandy CLAY

4.5

4.75

5 NA 1010 0.0 X

5.25 Sandy SILT

5.5

5.75

6

6.25

6.5

Notes: bgs - below ground surface"No creosote odor noted" refers to no olfactory observations in the field. NA - Not ApplicableSample collected from (0-0.5), (3-3.3), (4-5), (5-6) ft bgs.



NA

Sample ID: 14AD-KM02-SS-A Clayey SAND, brown and reddish brown, minor clay, hard, damp, and abundant gravel. No creosote odor noted.

Sample ID: 14AD-KM02-SB-B Sandy CLAY grey, grades to a sandy silt with depth, hard, and moist. No creosote odor noted.

Sample ID: 14AD-KM02-SB-C Sandy SILT grey, grades to a sandy silt with depth, soft, and wet at 5.75 ft bgs. No creosote odor noted.

Remainder of core (0.5 to 4 ft) - reddish brown clayey SAND, moderate clay, damp, and hard from 0.5 to 3 ft bgs. Then dark brown grades to grey silty SAND, silt content increases with depth, moist and abundant gravel.

Slight creosote odor observed from 3-3.3 ft bgs. A sample (14AD-KM02-SB-D) was collected from this interval









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Completion Notes

(0-4) 0.25 NA 0850 0.00 X

0.5 Sandy CLAY

0.75

1

1.25 Sandy SILT

1.5

1.75

2

2.25

2.5

2.75

3

3.25

3.5

3.75

(4-6) 4 NA 0900 0.0 X Silty SAND

4.25

4.5

4.75

5 NA 0910 0.0 X

5.25 SAND

5.5

5.75

6

6.25

6.5




Sample ID: 14AD-KM03-SB-C SAND, brown, wet, soft, moderate gravel. No creosote odor noted.


NA

Sample ID: 14AD-KM03-SS-A Silty clayey SAND, brown/dark brown hard, damp, and abundant gravel. No creosote odor noted.

Remainder of core (0.5 to 4 ft) - sandy SILT, brown/dark brown, slightly soft, grades to soft by 4 ft bgs, moisture content increases with depth and is wet by 3.75 ft bgs. Color grades to light brown by 3.25 ft bgs. Moderate sand content throughout.

Sample ID: 14AD-KM03-SB-B Silty SAND, light brown, soft, and wet. No creosote odor noted.









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PID

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Lab


Completion Notes

(0-4) 0.25 NA 0740 0.00 X

0.5 Sandy CLAY

0.75 Silty SAND

1

1.25

1.5 Sandy SILT

1.75

2

2.25

2.5

2.75

3

3.25

3.5

3.75

(4-6) 4 NA 0750 0.0 X

4.25

4.5

4.75

5 NA 0800 0.0 X

5.25

5.5

5.75

6

6.25

6.5




Sample ID: 14AD-KM04-SB-C Sandy SILT, grey, slightly soft, minor sand, and wet. No creosote odor noted.


NA

Sample ID: 14AD-KM04-SS-A Reddish brown sandy CLAY, hard, dry, and abundant gravel. No creosote odor noted.

Remainder of core (0.5 to 4 ft) - black silty SAND, abundant gravel, soft, and moist from 0.5 to 0.8 ft bgs, then a two inch layer of sand and gravel, brown. Followed by sandy SILT, grey, minor sand, slightly soft, very moist/wet.

Sample ID: 14AD-KM04-SB-B Sandy SILT, grey, slightly soft, minor sand, and wet. No creosote odor noted.









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PID

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Completion Notes

(0-4) 0.25 NA 0630 0.00 X

0.5 Sandy CLAY

0.75

1

1.25 Silty Sand

1.5

1.75

2

2.25

2.5

2.75

3

3.25

3.5

3.75

(4-6) 4 NA 0640 0.0 X

4.25

4.5 SAND

4.75

5 NA 0650 0.0 X

5.25

5.5

5.75

6

6.25

6.5




Sample ID: 14AD-KM05-SB-C SAND, brown, soft, and wet. No creosote odor noted.


NA

Sample ID: 14AD-KM05-SS-A Sandy CLAY, brown/light brown, hard, dry, and abundant gravel. No creosote odor noted.

Remainder of core (0.5 to 4 ft) - black silty SAND, minor silt, and soft from 0.5 to 0.7 ft bgs, then silty SAND, light brown, slightly soft, silt content reduces with depth. No creosote odor noted.

Sample ID: 14AD-KM05-SB-B SAND, light brown, soft, and wet. No creosote odor noted.









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Tim

e

PID

(pp

mv)

Sam

ples

sen

t to

Lab


Completion Notes

(0-4) 0.25 NA 1650 0.00 X

0.5 Silty SAND

0.75 SAND

1

1.25 Silty Sand

1.5

1.75

2

2.25

2.5

2.75

3

3.25

3.5

3.75

(4-6) 4 NA 1700 0.0 X

4.25

4.5 SAND

4.75

5 NA 1710 X

5.25

5.5

5.75

6

6.25

6.5




Sample ID: 14AD-KM06-SB-C SAND, brown, soft, and wet. No creosote odor noted.


NA

Sample ID: 14AD-KM06-SS-A Silty SAND, brown/light brown hard, damp, abundant gravel. No creosote odor noted.

Remainder of core (0.5 to 4 ft) - brown SAND with moderate gravel from 0.5 to 0.7 ft bgs, then brown/light brown silty SAND minor silt, hard, very moist/wet.

Sample ID: 14AD-KM06-SB-B SAND, brown/light brown, soft, and wet. No creosote odor noted.









Cor

e In

terv

al

Dep

th (

ft)

Per

cent

Rec

over

y

Tim

e

PID

(pp

mv)

Sam

ples

sen

t to

Lab


Completion Notes

(0-4) 0.25 NA 1540 0.00 X

0.5 Silty SAND

0.75 SAND

1

1.25 Silty Sand

1.5

1.75

2

2.25

2.5

2.75

3

3.25

3.5

3.75

(4-6) 4 NA 1550 0.0 X

4.25

4.5 Sandy SILT

4.75

5 NA 1600 X

5.25

5.5

5.75

6

6.25

6.5




Sample ID: 14AD-KM07-SB-C Sandy SILT, sand content continues to decrease with depth, slightly soft, and saturated. No creosote odor noted.

NA

Sample ID: 14AD-KM07-SS-A Silty SAND brown/light brown, hard, damp, and abundant gravel. No creosote odor noted.

Remainder of core (0.5 to 4 ft) - reddish brown SAND from 0.5 to 0.7 ft bgs, then brown silty SAND from 0.7 to 4 ft bgs. Moist toward the top and grades to saturated by 4 ft bgs. No creosote odor noted.

Sample ID: 14AD-KM07-SB-B Silty SAND to sandy SILT, brown, soft, and saturated. No creosote odor noted.









Cor

e In

terv

al

Dep

th (

ft)

Per

cent

Rec

over

y

Tim

e

PID

(pp

mv)

Sam

ples

sen

t to

Lab


Notes

(0-4) 0.25 NA 1235 0.00 X

0.5 Silty SAND

0.75

1

1.25

1.5 Sandy SILT

1.75

2

2.25 Sandy SILT

2.5

2.75

3

3.25

3.5

3.75

(4-6) 4 NA 1245 0.0 X Sandy Silty CLAY

4.25

4.5

4.75

5 NA 1110 0.0 X

5.25 SAND

5.5

5.75

6

6.25

6.5




Sample ID: 14AD-KM08-SB-C SAND, light brown, abundant gravel, and saturated. No creosote odor noted.


NA

Sample ID: 14AD-KM08-SS-A Silty SAND, dark brown to black, abundant silt and gravel, soft, and moist. No creosote odor noted.

Remainder of core (0.5 to 4 ft) - Silty SAND, brown, abundant silt, fine grain sand, very moist, and slightly hard. All grades to a light brown sandy silty CLAY, hard, and moist. No creosote odor noted.

Sample ID: 14AD-KM08-SB-B Sandy silty CLAY, light brown to orange brown, grades to all sand, fine grain by 4.5 ft bgs. No creosote


BORING ID: RP01WELL ID: NA







Cor

e In

terv

al

Dep

th (

ft)

Per

cent

Rec

over

y

Tim

e

PID

(pp

mv)

Sam

ples

sen

t to

Lab


Completion Notes

(0-4) 0.25 NA 1525 0.00 X

0.5 Sandy SILT

0.75

1

1.25

1.5

1.75

2

2.25

2.5 Sandy CLAY

2.75

3

3.25

3.5

3.75

(4-6) 4 NA 1535 0.0 X

4.25 Clayey SAND

4.5

4.75

5 NA 1545 0.0 X

5.25

5.5

5.75

6

6.25

6.5

Notes: bgs - below ground surface"No creosote odor noted" refers to no olfactory observations in the field. NA - Not ApplicableSample collected from (0-0.5), (4-5), (5-6) ft bgs.Boring extended to the erosional surface of the Eutaw, approximately 14 feet bgs.



Sample ID: 14AD-RP01-SB-C Clayey SAND, orange brown, moderate clay, hard, and very moist. No creosote odor noted.


NA

Sample ID: 14AD-RP01-SS-A Sandy SILT, dark brown, abundant fine grain sand, slightly hard, very moist. No creosote odor noted.

Remainder of core (0.5 to 4 ft) - Sandy SILT, dark brown, abundant fine grain sand, slightly hard, very moist to 1 foot bls. Then orange brown sandy CLAY, hard, and damp. No creosote odor noted.

Sample ID: 14AD-RP01-SB-B Clayey SAND, orange brown, moderate clay, hard, and very moist. No creosote odor noted.









Cor

e In

terv

al

Dep

th (

ft)

Per

cent

Rec

over

y

Tim

e

PID

(pp

mv)

Sam

ples

sen

t to

Lab


Completion Notes

(0-4) 0.25 NA 1430 0.00 X

0.5 Sandy SILT

0.75

1

1.25

1.5

1.75

2

2.25

2.5 Silty SAND

2.75

3

3.25

3.5

3.75

(4-6) 4 NA 1440 0.0 X

4.25

4.5

4.75

5 NA 1450 0.0 X

5.25

5.5

5.75

6

6.25

6.5


7/19/2012NA

Sample ID: 14AD-RP02-SS-A Sandy SILT, dark brown, moderate fine grain sand, minor gravel, slightly hard, very moist/wet. No creosote odor noted.

Remainder of core (0.5 to 4 ft) - Sandy SILT, dark brown, grades to light grey silty sand, abundant silt, wet and hard. No creosote odor noted.

Sample ID: 14AD-RP02-SB-B Silty SAND, light grey to light brown, abundant silt, moderate gravel, wet, and slightly hard. No creosote odor noted.

Soil lithology was classified down to the deepest sampling depth, then the boring was extended to the erosional surface of the Eutaw, approximately 16 feet bgs, with no lighological logging.



Sample ID: 14AD-RP02-SB-C Silty SAND, light grey to light brown, abundant silt, moderate gravel, wet, and slightly hard. No creosote odor noted.

Start Date: 7/19/2012Finish Date:









Cor

e In

terv

al

Dep

th (

ft)

Per

cent

Rec

over

y

Tim

e

PID

(pp

mv)

Sam

ples

sen

t to

Lab


Completion Notes

(0-4) 0.25 NA 1330 0.00 X

0.5 Sandy SILT

0.75

1

1.25

1.5

1.75

2

2.25

2.5

2.75

3

3.25

3.5

3.75

(4-6) 4 NA 1340 0.0 X

4.25

4.5

4.75

5 NA 1350 0.0 X

5.25

5.5

5.75

6

6.25

6.5

Notes: bgs - below ground surface"No creosote odor noted" refers to no olfactory observations in the field. NA - Not ApplicableSample collected from (0-0.5), (4-5), (5-6) ft bgs. Duplicate sample collected from (0-0.5)



Sample ID: 14AD-RP03-SB-C Sandy SILT, grey and brown, grades to clay-like sandy SILT at 5.75 feet bls, hard, and moist. No creosote odor noted.


NA

Sample ID: 14AD-RP03-SS-A Sandy SILT, dark brown, slightly hard, moderate gravel, and moist. Grades to a brown sandy SILT with minor fine grain sand and slightly soft. No creosote odor noted.

Remainder of core (0.5 to 4 ft) - Sandy SILT, brown, very minor fine grain sand, damp, hard, sand content increases with depth (up to moderate sand content), color grades to light grey by 2.75 feet bls. No creosote odor noted.

Sample ID: 14AD-RP03-SB-B Sandy SILT, grey, moderate fine grain sand, sand content increases with depth, soft, and wet. No creosote odor noted.









Cor

e In

terv

al

Dep

th (

ft)

Per

cent

Rec

over

y

Tim

e

PID

(pp

mv)

Sam

ples

sen

t to

Lab


Completion Notes

(0-4) 0.25 NA 1100 0.00 X

0.5 Sandy SILT

0.75

1

1.25

1.5 Silty SAND

1.75

2

2.25

2.5

2.75

3

3.25

3.5

3.75

(4-6) 4 NA 1110 0.4 X SAND

4.25

4.5

4.75

5 NA 1120 0.0 X

5.25 Silty SAND

5.5

5.75

6

6.25

6.5



Sample ID: 14AD-RP04-SB-C Silty SAND, grey, moderae silt, slightly soft, and saturated. No creosote odor noted. Slight creosote odor noted durning homegnization of RP04-SB-C.

NA

Sample ID: 14AD-RP04-SS-A Sandy SILT, grey and light brown, abundant silt, fine grain sand, slightly soft, and moist. No creosote odor noted.

Remainder of core (0.5 to 4 ft) - Silty SAND, brown/lightl brown, abundant silt, fine grain sand, slightly soft, and moist. Grades to grey silty SAND by 3.25 feet bgs. No creosote odor noted.

Sample ID: 14AD-RP04-SB-B SAND, grey, soft, and saturated. Grades to a silty SAND with depth. Has a slight weathered petro odor.












Cor

e In

terv

al

Dep

th (

ft)

Per

cent

Rec

over

y

Tim

e

PID

(pp

mv)

Sam

ples

sen

t to

Lab


Completion Notes

(0-4) 0.25 NA 0955 0.00 X

0.5 Sandy SILT

0.75

1

1.25

1.5

1.75

2

2.25 Silty SAND

2.5

2.75

3

3.25

3.5

3.75

(4-6) 4 NA 1005 0.0 X

4.25

4.5

4.75

5 NA 1015 0.0 X

5.25 SAND

5.5

5.75

6

6.25

6.5

Notes: bgs - below ground surface"No creosote odor noted" refers to no olfactory observations in the field. NA - Not ApplicableSample collected from (0-0.5 [after fill material removed]), (4-5), (5-6) ft bgs.

Sample ID: 14AD-RP05-SB-C Silty SAND, light grey and light brown, soft, minor silt, and wet. No creosote odor noted.

NA

Sample ID: 14AD-RP05-SS-A Dark brown/black SAND and gravel, likely fill material, on top 4 inches. Then sandy SILT, grey, moderate to abundant fine grain sand, slightly soft, and moist. No creosote odor noted.

Remainder of core (0.5 to 4 ft) - Sandy SILT, grey, material grades to light brown silty SAND by 2 feet bgs very moist/wet, and slightly soft. No creosote odor noted.

Sample ID: 14AD-RP05-SB-B Silty SAND, light grey, minor silt, slightly hard, and wet. No creosote odor noted.












Cor

e In

terv

al

Dep

th (

ft)

Per

cent

Rec

over

y

Tim

e

PID

(pp

mv)

Sam

ples

sen

t to

Lab


Completion Notes

(0-4) 0.25 NA 0910 0.00 X

0.5 Sandy SILT

0.75

1

1.25

1.5 Sandy SILT

1.75

2

2.25

2.5

2.75

3

3.25

3.5 Sandy CLAY

3.75

(4-6) 4 NA 0920 0.0 X

4.25

4.5

4.75

5 NA 0930 0.0 X

5.25 SAND

5.5

5.75

6

6.25

6.5

Notes: bgs - below ground surface"No creosote odor noted" refers to no olfactory observations in the field. NA - Not ApplicableSample collected from (0-0.5 [after fill material removed]), (4-5), (5-6) ft bgs.


Sample ID: 14AD-RP06-SB-C SAND, light brown, soft, and saturated. No creosote odor noted.

NA

Sample ID: 14AD-RP06-SS-A Dark brown/black SAND and gravel, likely fill material, on top 4 inches. Then sandy SILT, grey, moderate fine grain sand, slightly soft, and moist. No creosote odor noted.

Remainder of core (0.5 to 4 ft) - Sandy SILT, grey, material grades to light brown in color then to a sandy CLAYwith depth, hard, and moist. No creosote odor noted.

Sample ID: 14AD-RP06-SB-B Clayey SAND, light brown, slightly hard, saturated, clay content reduces with depth. No creosote odor noted.





SURFACE COMPLETION:FLUSH MOUNT WITH ELEVATION TOC: FEET NGVDWELL VAULT

GROUND SURFACEELEVATION: FEET NGVD

WELL DATAWELL NO:

SURFACE CASINGWATER-BEARING ZONE: Material: Steel Diameter: 6"

FT BGS FROM: TO: FEET BGSDATES SAND/CEMENTDRILLING DATE(S): FROM: TO: FEET BGS

Borehole diameter: CASING INSTALLATION DATE(S):

WELL INSTALLATION DATE(S):BENTONITE PELLETS

PAD COMPLETION DATE(S): FROM: TO: FEET BGS

DRILLING INFORMATION

DRILLING COMPANY: WELL RISER CASINGWalker-Hill Material: PVC

DRILLERS LICENSE NO: Diameter: 2-inchNA FROM: TO: FEET BGS

DRILLING METHOD:Hollow Stem Auger SAND PACK Silica Sand:

FROM: TO: FEET BGS FROM: TO: FEET BGSFROM: TO: FEET NGVD

WELL SCREENMaterial: PVCDiameter: 2-Inch Slot size:

TOTAL DEPTH OF WELL FROM: TO: FEET BGSFEET BGS FROM: TO: FT NGVDFEET NGVD

SUMP LENGTH FEET TOTAL DEPTH OF BOREHOLE

FEET BGSFEET NGVD

BOREHOLE DIAMETER

BGS = BELOW GROUND SURFACEIN = INCH

PVC = POLYVINYL CHLORIDETOC = TOP OF CASING

7/20/2012

16.5

6

0.57/20/2012

NGVD = NATIONAL GEODETIC VERTICAL DATUM

16171.35

175.2116

163.21

0

MONITORING WELL COMPLETION DIAGRAM

0Date:

1

179.207

162.71

3.38

0.57/20/2012

4

7/20/2012

0

RP02

163.21


163.2116

16.5

0

Former Kerr-McGee Wood Treating Facility2300 14th Avenue North, Columbus, Lowndes County, Mississippi

NA

0.5

6

4

0.010




WELL DATAWELL NO:














FEET BGSFEET NGVD

BOREHOLE DIAMETER



0.010

NA

7/20/2012

16.5

14th Avenue Ditch AreaFormer Kerr-McGee Wood Treating Facility

2300 14th Avenue North, Columbus, Lowndes County, Mississippi


16.5

0

6

2

7/20/2012

0

RP04

161.3516

177.35

160.85

5.59

0.57/20/2012

2

7/20/2012

161.35

0.5

0Date:

1

6

0.5

175.3516

161.35

0


16171.35




WELL DATAWELL NO:














FEET BGSFEET NGVD

BOREHOLE DIAMETER



14th Avenue Ditch AreaFormer Kerr-McGee Wood Treating Facility

2300 14th Avenue North, Columbus, Lowndes County, Mississippi



14170.53

0Date:

1

7/19/2012

14

174.53

160.03

3.98

0

RP06

160.5314

14.5

6

0.5

172.5314

7/19/2012

20

7/19/2012

7/20/2012

0

NA

160.53

0.010

0.5

4

2

0.5

160.53


appendix a figures (17 pages) 1 site location 2 14th avenue

Documents