10.2.4b_-_2011c_-_BRA_-_Appendix_A-D,_F,_G,_I-K.pdf

Baseline Risk Assessment DRAFT FINAL DuPont Chambers Works FUSRAP Site

W912DR-04-D-0015/0004 CABRERA SERVICES INC. Appendix

APPENDIX A

DETERMINATION OF BACKGROUND CONCENTRATIONS FOR

RADIONUCLIDES AND METALS AT EACH MEDIUM

Baseline Risk Assessment

TABLE OF CONTENTS

Table A-1: Results of Radiological COPC’s Background Concentrations .................. A-1

Table A-2: Results of Metal Background Concentrations............................................ A-3

A-1

Table A-1. Results of Radiological COPC’s Background Concentrations

Detected Concentration

Analyte (Detected/

Total ) Samples Maximum Minimum

Unit Dist 95%

UTL

95%

UPL

Site-specific

BKGD

Background Concentration (pCi/g) for Surface Soil Ra-226 10/10 1.61 0.6 pCi/g N 2.062 1.728 1.61 Ra-228 8/10 0.98 0.7 pCi/g X 1.115 1.01 0.98 Th-228 10/10 0.99 0.225 pCi/g X 0.99 0.99 0.99 Th-230 10/10 1.18 0.39 pCi/g N 1.437 1.188 1.18 Th-232 10/10 1 0.382 pCi/g N 1.227 1.054 1 U-234 10/10 1.65 0.33 pCi/g L 3.326 1.945 1.65 U-235 6/10 0.098 0.043 pCi/g X 0.1 0.086 0.09 U-238 10/10 1.55 0.31 pCi/g N 1.97 1.57 1.55

Background Concentration (pCi/g) for Subsurface Soil Ra-226 10/10 1.88 0.64 pCi/g N 2.26 1.93 1.88 Ra-228 10/10 1.51 0.57 pCi/g N 1.91 1.60 1.51 Th-228 10/10 1.47 0.51 pCi/g N 1.91 1.63 1.47 Th-230 10/10 1.33 0.55 pCi/g N 1.61 1.38 1.33 Th-232 9/10 1.39 0.53 pCi/g N 1.93 1.62 1.39 U-234 10/10 1.42 0.68 pCi/g N 1.61 1.38 1.38 U-235 8/10 0.108 0.046 pCi/g X 0.12 0.10 0.10 U-238 10/10 1.34 0.54 pCi/g N 1.61 1.37 1.34

Background Concentration (pCi/g) for Soil at All Depth RA-226 20/20 1.88 0.6 pCi/g N 2.01 1.79 1.79 RA-228 18/20 1.51 0.57 pCi/g X 1.39 1.35 1.35 Th-228 20/20 1.47 0.225 pCi/g N 1.65 1.46 1.46 Th-230 20/20 1.33 0.39 pCi/g N 1.44 1.28 1.28 Th-232 20/20 1.39 0.382 pCi/g N 1.56 1.39 1.39 U-234 20/20 1.65 0.33 pCi/g N 1.73 1.5 1.5 U-235 14/20 0.108 0.043 pCi/g X 0.09 0.09 0.09 U-238 20/20 1.55 0.31 pCi/g N 1.64 1.44 1.44

Background Concentration (pCi/L) for Groundwater Ra-226 6/10 0.7 0.21 pCi/L X 0.728 0.58 0.58 Ra-228 1/10 0.75 0.75 pCi/L ND ND ND 0.75 Th-228 0/10 0.069 -0.026 pCi/L ND ND ND ND Th-230 0/10 0.094 -0.029 pCi/L ND ND ND ND Th-232 3/10 0.053 0.041 pCi/L ND ND ND 0.05 U-234 9/10 0.29 0.091 pCi/L N 0.39 0.32 0.29 U-235 1/10 0.082 0.082 pCi/L ND ND ND 0.08 U-238 8/10 0.41 0.067 pCi/L X 0.49 0.38 0.38

Background Concentration (pCi/L) for Surface Water Ra-226 2/10 0.34 0.19 pCi/L ND ND ND 0.34 Ra-228 0/10 0.57 -0.09 pCi/L ND ND ND ND Th-228 0/10 0.023 -0.017 pCi/L ND ND ND ND Th-230 0/10 0.052 -0.046 pCi/L ND ND ND ND Th-232 0/10 0.019 -0.008 pCi/L ND ND ND ND

A-2

Table A-1. Results of Radiological COPC’s Background Concentrations (Cont’d)

Detected Concentration Analyte

(Detected/ Total )

Samples Maximum Minimum Unit Dist 95%

UTL

95%

UPL

Site-specific

BKGD

Background Concentration (pCi/g) for Surface Water U-234 10/10 0.39 0.087 pCi/L N 0.44 0.35 0.35 U-235 1/10 0.037 0.037 pCi/L ND ND ND 0.037 U-238 6/10 0.42 0.048 pCi/L X 0.43 0.33 0.33

Background Concentration (pCi/g) for Sediment Ra-226 6/10 0.55 0.31 pCi/g X 0.67 0.58 0.55 Ra-228 1/10 0.55 0.55 pCi/g ND ND ND 0.55 Th-228 10/10 0.45 0.27 pCi/g N 0.49 0.43 0.43 Th-230 10/10 0.46 0.26 pCi/g N 0.54 0.48 0.46 Th-232 10/10 0.39 0.21 pCi/g N 0.48 0.42 0.39 U-234 10/10 0.52 0.29 pCi/g N 0.64 0.55 0.52 U-235 7/10 0.053 0.023 pCi/g X 0.058 0.049 0.049 U-238 10/10 0.65 0.272 pCi/g L 0.78 0.60 0.60

FOOT NOTES

N = Normal L = Lognormal X = Neither normal nor lognormal ND = Not determined (Detected sample<5) The highlighted are outliers at 5% significance level (By using Dixon's outlier test) For detected samples>5, site-specific BKGD is equal to the minimum of 95% UTL, 95% UPL and the maximum detected concentration.

For detected samples<5, site-specific BKGD is equal to the maximum detected concentration.

A-3

Table A-2. Results of Metal Background Concentrations

Concentration Analyte

(Detected/ Total )

Samples Maximum Minimum Dist 95%

UTL

95%

UPL

Site-specific

BKGD

Background Concentration (mg/kg) for Surface Soil

ALUMINUM 10/10 19,000 5,400 L 25,985 18,049 18,049

ANTIMONY 0/10 2.4 2.1 ND ND ND ND

ARSENIC 10/10 5.5 1.5 L 6.91 4.95 4.95

BARIUM 10/10 160 24 L 234.7 140 140

BERYLLIUM 4/10 1 0.55 X 1.07 0.93 0.93

CADMIUM 2/10 1.4 0.92 ND ND ND 1.4

CHROMIUM 10/10 19 11 N 22.94 20.14 19

COBALT 10/10 2,900 3.2 X 2,900 2,900 2,900

COPPER 10/10 48 3.1 L 175.80 69.26 48

IRON 10/10 20,000 11,000 N 22,065 19,462 19,462

LEAD 10/10 45 5.1 N 52.78 41.09 41.09

MANGANESE 10/10 560 47 L 1298.00 600.70 560

MERCURY 7/10 0.24 0.044 X 0.32 0.25 0.24

NICKEL 10/10 140 5.9 X 140 140 140

SELENIUM 8/10 1.3 0.77 X 1.44 1.27 1.3

SILVER 1/10 65 65 ND ND ND 65

THALLIUM 2/10 3.7 1.2 ND ND ND 3.7

VANADIUM 10/10 28 13 N 33.47 28.7 28

ZINC 10/10 280 17 L 549.5 247.9 248

Background Concentration (mg/kg) for Subsurface Soil

ALUMINUM 10/10 17,000 2,100 N 21,429 17,267 17,000

ANTIMONY 0/10 2.5 2.1 ND ND ND ND

ARSENIC 9/10 7.3 1.2 N 9.83 7.62 7.30

BARIUM 9/10 100 18 N 143.5 110.3 100

BERYLLIUM 5/10 1.1 0.58 X 1.327 1.12 1.1

CADMIUM 1/10 1.4 1.4 ND ND ND 1.4

CHROMIUM 10/10 24 3.7 N 33.33 26.91 24

COBALT 10/10 1,000 3.5 X 1,000 1,000 1,000

COPPER 10/10 20 1.2 N 27.27 21.21 20

IRON 10/10 40,000 3,900 N 47,509 37,791 37,791

LEAD 10/10 56 2.5 L 90.65 38.45 38.45

MANGANESE 10/10 330 37 N 405.1 313.5 313.5

MERCURY 2/10 0.25 0.053 ND ND ND 0.25

NICKEL 10/10 16 2.9 N 22.73 18.35 16

SELENIUM 6/10 1.1 0.55 X 1.38 1.18 1.1

SILVER 0/10 1.3 1 ND ND ND ND

THALLIUM 0/10 6 1 ND ND ND ND

VANADIUM 10/10 37 4 N 53.83 43.56 37

ZINC 10/10 67 8.7 N 77.04 61.09 61.09

Background Concentration (mg/L) for Groundwater

ALUMINUM 8/10 1.4 0.21 X 1.78 1.37 1.37

A-4

Table A-2. Results of Metal Background Concentrations (Cont’d)

Detected Concentration Analyte

(Detected/ Total )

Samples Maximum Minimum Dist 95%

UTL

95%

UPL

Site-specific

BKGD

Background Concentration (mg/kg) for Groundwater

ANTIMONY 0/10 0.02 0.02 ND ND ND ND

ARSENIC 7/10 0.065 0.017 X 0.070 0.057 0.057

BARIUM 4/10 0.16 0.1 ND ND ND 0.16

BERYLLIUM 0/10 0.005 0.005 ND ND ND ND

CADMIUM 0/10 0.005 0.005 ND ND ND ND

CHROMIUM 0/10 0.01 0.01 ND ND ND ND

COBALT 6/10 4.7 0.037 X 4.62 3.25 3.25

COPPER 0/10 0.01 0.01 ND ND ND ND

IRON 10/10 110 0.19 N 141.9 105.4 105.4

LEAD 3/10 0.021 0.004 ND ND ND 0.021

MANGANESE 10/10 4.8 0.71 N 6.33 5.00 4.8

MERCURY 0/10 0.0002 0.0002 ND ND ND ND

NICKEL 2/10 0.049 0.043 ND ND ND 0.049

SELENIUM 0/10 0.005 0.005 ND ND ND ND

SILVER 0/10 0.01 0.01 ND ND ND ND

THALLIUM 0/10 0.01 0.01 ND ND ND ND

VANADIUM 0/10 0.01 0.01 ND ND ND ND

ZINC 1/10 0.023 0.023 ND ND ND 0.02

Background Concentration (mg/L) for Surface Water

ALUMINUM 10/10 5.8 0.24 L 14.17 5.08 5.08

ANTIMONY 0/10 0.02 0.02 ND ND ND ND

ARSENIC 1/10 0.025 0.025 ND ND ND 0.025

BARIUM 1/10 0.15 0.15 ND ND ND 0.15

BERYLLIUM 0/10 0.005 0.005 ND ND ND ND

CADMIUM 0/10 0.005 0.005 ND ND ND ND

CHROMIUM 3/10 0.059 0.011 ND ND ND 0.059

COBALT 2/10 0.046 0.02 ND ND ND 0.046

COPPER 9/10 0.081 0.01 L 0.16 0.08 0.08

IRON 10/10 13 0.39 L 40.1 12.66 12.66

LEAD 10/10 0.54 0.0063 L 2.45 0.56 0.54

MANGANESE 10/10 0.29 0.033 L 0.48 0.24 0.24

MERCURY 1/10 0.0015 0.0015 ND ND ND 0.0015

NICKEL 1/10 0.046 0.046 ND ND ND 0.046

SELENIUM 0/10 0.005 0.005 ND ND ND ND

SILVER 0/10 0.01 0.01 ND ND ND ND

THALLIUM 0/10 0.01 0.01 ND ND ND ND

VANADIUM 5/10 0.052 0.012 X 0.05 0.04 0.04

ZINC 10/10 1.3 0.079 L 2.65 1.16 1.16

Background Concentration (mg/kg) for Sediment

ALUMINUM 10/10 5,700 2,700 N 6,843 5,946 5,700

A-5

Table A-2. Results of Metal Background Concentrations (Cont’d)

Detected Concentration Analyte

(Detected/ Total )

Samples Maximum Minimum Dist 95%

UTL

95%

UPL

Site-specific

BKGD

Background Concentration (mg/kg) for Sediment

ANTIMONY 1/10 2.1 2.1 ND ND ND 2.1

ARSENIC 10/10 13 2 N 19.7 15.52 13

BARIUM 10/10 390 46 L 928.2 461.2 390

BERYLLIUM 0/10 0.59 0.51 ND ND ND ND

CADMIUM 8/10 1.6 0.55 X 2.14 1.73 1.6

CHROMIUM 10/10 130 19 L 258 137.5 130

COBALT 10/10 31 5.2 N 36.03 28.42 28.42

COPPER 10/10 54 10 N 69.73 55.12 54

IRON 10/10 23,000 14,000 N 27,038 23,664 23,000

LEAD 10/10 420 44 N 586 463.9 420

MANGANESE 10/10 190 90 N 239.8 204.5 190

MERCURY 10/10 0.75 0.054 N 1.04 0.8 0.75

NICKEL 10/10 30 9 N 36.51 30.23 30

SELENIUM 9/10 1.4 0.59 N 1.86 1.54 1.4

SILVER 4/10 2.7 1.6 ND ND ND 2.7

THALLIUM 0/10 2 1 ND ND ND ND

VANADIUM 10/10 39 17 N 44.82 37.99 37.99

ZINC 10/10 930 100 N 11.43 888.4 888.4

FOOT NOTES:

FOD = Frequency of Detection Max = Maximum Min = Minimum Dist = Distribution BKGD = Background N = Normal L = Lognormal X = Neither normal nor lognormal ND = Not determined (Detected sample<5) The highlighted are outliers at 5% significance level (By using Dixon's outlier test).

For detected samples>5, site-specific BKGD is equal to the minimum of 95% UTL, 95% UPL and the maximum detected concentration.

For detected samples<5, site-specific BKGD is equal to the maximum detected concentration.

Baseline Risk Assessment DRAFT FINAL

W912DR-04-D-0015/0004 CABRERA SERVICES INC. Appendix

APPENDIX B

IDENTIFICATION OF COPCs AND DETERMINATION OF

EXPOSURE POINT CONCENTRATION (EPC) FOR EACH COPC

AT EACH MEDIUM

1 3 Table B-1-1 Radionuclides 4 Table B-1-2 Metals 6 Table B-1-3 VOC's 10 Table B-1-4 SVOC's 20 Table B-1-5 PAH's 30 Table B-1-6 PCB's 33

2 35 Table B-2-1 Radionuclides 36 Table B-2-2 Metals 39 Table B-2-3 VOC's 43 Table B-2-4 SVOC's 53 Table B-2-5 PAH's 64 Table B-2-6 PCB's 68 Table B-2-7 Pesticide's 70

3 72 Table B-3-1 Radionuclides 73 Table B-3-2 Metals 76 Table B-3-3 VOC's 80 Table B-3-4 SVOC's 89 Table B-3-5 PCB's 98 Table B-3-6 Pesticide's 99

4 100 Table B-4-1 Radionuclides 101 Table B-4-2 Metals 102 Table B-4-3 VOC's 104 Table B-4-4 SVOC's 109

5 114 Table B-5-1 Radionuclides 115 Table B-5-2 Metals 116 Table B-5-3 VOC's 118 Table B-5-4 SVOC's 122 Table B-5-5 PAH's 128 Table B-5-6 PCB's 130

Identification of Surface Water COPC and Determination of EPC for each COPC

Identification of Sediment COPC and Determination of EPC for each COPC

Table of Contents

Identification of Surface Soil COPC and Determination of EPC for each COPC

Identification of All Depth Soil COPC and Determination of EPC for each COPC

Identification of Groundwater COPC and Determination of EPC for each COPC

B - 2

Report B-1:

Identification of Surface Soil COPC's and

Determination of EPC for each COPC

B - 3

Mean Max Min

DT 1 0.03 0.03

Non-DT 52 0.07 -0.09

DT 9 1.51 0.37

Non-DT 1 0.34 0.34 Th-22811 DT 16 16/16 0.66 2.61 0.18 Yes 0.99 NA Yes X 1.345 1.345 Th-230 DT 16 16/16 4.44 32.3 0.28 Yes 1.18 NA Yes X 25.53 25.53

Th-23211 DT 16 16/16 0.44 0.89 0.18 Yes 1 NA No - - - U-23412 DT 24 24/24 37.63 347.2 1.39 Yes 1.65 NA Yes

DT 48 347.2 0.77

Non-DT 5 0.44 0.07

DT 34 21.45 0.04

Non-DT 19 0.23 -0.11

U-23814 DT 24 24/24 37.99 340.8 0.72 Yes 1.55 NA Yes

DT 48 340.8 0.72

Non-DT 5 0.44 0.07 Co-60 Non-DT 9 0/9 -0.01 0.03 -0.06 No - - - - - -

DT 14 1.37 0.42

Non-DT 1 0.3 0.3

Th-22811 DT 22 22/22 1.17 3.42 0.05 Yes 0.99 NA Yes G 1.715 1.715 Th-230 DT 22 22/22 0.62 1.37 0.12 Yes 1.18 NA Yes N 0.74 0.74

Th-23211 DT 22 22/22 0.59 1.13 0.04 Yes 1 NA Yes N 0.72 0.72 U-23412 DT 9 9/9 2.25 10.8 0.12 Yes 1.65 NA Yes

DT 14 14.8 0.12

Non-DT 1 0.1 0.10

DT 8 1.02 0.03

Non-DT 7 0.21 -0.33

U-23814 DT 9 9/9 2.31 11.2 0.10 Yes 1.55 NA Yes

DT 14 14.8 0.10

Non-DT 1 0.1 0.1

RA-226 DT 2 2/2 0.96 1.44 0.47 Yes 1.61 NA No - - - Th-22811 DT 3 3/3 1.16 1.5 0.58 Yes 0.99 NA Yes X 1.5 1.5 Th-230 DT 3 3/3 0.28 0.37 0.22 Yes 1.18 NA No - - -

TABLE B-1-1: IDENTIFICATION OF SURFACE SOIL COPCS AND DETERMINATION

OF EXPOSURE POINT CONCENTRATION OF EACH COPC - RADIONUCLIDES

2A

2B

Yes 1.61 No - - -

EPC10

(pCi/g) Concentration4 (pCi/g)

Consider for

BKGD5

Evaluation?

BKGD

Conc

(pCi/g) ROCs1 Detect?2 # of

Samples

UCL95

(pCi/g) FOD3 Dist8

Considered for COPC7

Evaluation?

Co-60 1/53 0.00 No - - - -

3.63

Yes 1.65

X 3.63Yes

74.81.55 Yes X 74.8

No - -RA-226 14/15 0.71 Yes -

U-235 8/15 0.38 Yes 0.380.09 Yes X 0.38NA

U-238 mod15 14/15 1.97 Yes 1.55 Yes GNA

See U-238 mod

7.59 7.59

EU

U-238 mod15 48/53 26.46

RA-226 9/10 0.60

U-235 1.53

U-234 mod13

U-234 mod13

48/53

34/53

14/15

26.29

7.47

See U-234 mod

3.77 Yes 1.65 Yes X 7.47NA

Yes

1.61

See U-234 mod

Yes L 71.87 71.87

See U-238 mod

0.09 Yes

Considered for Risk Screen6?

NA

NA

NA

NA

NA

CABRERA SERVICES INC. B - 4

Mean Max Min

EPC10

(pCi/g) Concentration4 (pCi/g)

Consider for

BKGD5

Evaluation?

BKGD

Conc

(pCi/g) ROCs1 Detect?2 # of

Samples

UCL95

(pCi/g) FOD3 Dist8

Considered for COPC7

Evaluation?

EU

Considered for Risk Screen6?

Th-23211 DT 3 3/3 0.49 0.74 0.16 Yes 1 NA No - - - Th-234 Non-DT 2 0/2 0.43 0.48 0.37 No - NA - - - - U-235 Non-DT 2 0/2 -0.06 0 -0.12 No - NA - - - - Co-60 Non-DT 11 0/11 -0.01 0.06 -0.04 No - - - - - -

DT 10 1.1 0.45

Non-DT 1 0.29 0.29

Th-22811 DT 11 11/11 0.43 0.6 0.15 Yes 0.99 NA No - - - Th-230 DT 11 11/11 0.51 1.33 0.20 Yes 1.18 NA Yes G 0.691 0.69

Th-23211 DT 11 11/11 0.40 0.57 0.24 Yes 1 NA No - - - U-23412 DT 10 10/10 1.32 2.78 0.57 Yes 1.65 NA Yes

DT 10 2.78 0.57

Non-DT 1 1.3 1.3

DT 9 0.213 0.06

Non-DT 2 0.15 0.04

U-23814 DT 10 10/10 1.29 2.84 0.52 Yes 1.55 NA Yes

DT 10 2.84 0.52

Non-DT 1 1.3 1.3 Co-60 Non-DT 11 0/11 0.01 0.05 -0.06 No - - - - - -

DT 10 9.8 0.54

Non-DT 1 0.42 0.42

Th-22811 DT 10 10/10 0.54 0.82 0.36 Yes 0.99 NA No - - - Th-230 DT 10 10/10 7.44 69 0.3 Yes 1.18 NA Yes X 75.5 69

Th-23211 DT 10 10/10 0.46 0.67 0.33 Yes 1 NA No - - - U-23412 DT 10 10/10 188.91 1770 0.76 Yes 1.65 NA Yes

U-234 mod13 DT 11 11/11 173.17 1770 0.76 Yes 1.65 NA Yes L 487.1 487.1 U-235 DT 11 11/11 10.36 105 0.06 Yes 0.09 NA Yes L 29.02 29.02

U-23814 DT 10 10/10 195.56 1830 0.79 Yes 1.55 NA Yes U-238 mod15 DT 11 11/11 179.21 1830 0.79 Yes 1.55 NA Yes L 510 510

Footnotes

2 DT = Detected; Non-DT = Non-Detect;

3A

3B

2B Cont.

5 BKGD = Background

8 Dist = Distribution of Sampling Results; N = Normal; L = Lognormal; G =Gamma; X = Non-parametric

4 Max = Maximum; Min = Minimum

7 COPC = Contaminant of Potential Concern

6 Risk screen is not applicable for radionuclides as no Region VI PRG is available.

13 U-234 mod = EPC for U-234 was determined by combining samplings results of Th-234 and U-234.

9 UCL95 = 95% of the upper confidence limit of the mean 11 Half-lifes of Th-228, Ra-228, and Th-232 are greater than 180, therefore they are included in this BRA. The EPC for Ra-228 is reported to its parent product, Th-232.

12 U-234 = EPC for U-234 was evaluated as a part of U-234 mod.

15 U-238 mod = EPC for U-238 was determined by combining samplings results of Th-234 and U-238

10 EPC = Exposure point concentration

0.67 Yes

0.10 Yes

1.67

0.09 Yes G

1.67

See U-238 mod

0.124 0.12

See U-234 mod

1.68

1.68

Yes Yes GNA

1.61 NoNA

Yes 1.61 Yes XNA 5.115 5.115RA-226 10/11 1.49

1.32

U-238 mod15 10/11 1.30

U-235 9/11

U-234 mod13 10/11

RA-226 10/11

3 FOD = Frequency of Detection (i.e., Detected/Total # of Samples)

See U-234 mod

See U-238 mod

1 Progenies with half-life less than 180 days (Bi-212, Bi-214, Pb-212, Pb-214, Be-7, Tl-208, Pa-234m and Pa-234) are not evaluated in this BRA.

Yes 1.65 Yes L

14 U-238 = EPC for U-238 was evaluated as a part of U-238 mod.

NA

CABRERA SERVICES INC. B - 5

Mean Max Min ALUMINUM DT 12 12/12 6095.83 12000 3300 Yes 18049 No - - - - -

DT 4 3.9 2.3

Non-DT 8 2.2 0.21

DT 10 20 1.1

Non-DT 2 1.1 1

BARIUM DT 12 12/12 60.53 180 12 Yes 140 Yes 1600 No - - -

DT 2 0.36 0.25

Non-DT 10 0.56 0.52

DT 4 1.3 0.04

Non-DT 8 0.55 0.03 CHROMIUM DT 12 12/12 23.58 57 9.5 Yes 19 Yes 30 Yes L 37.39 37.39

COBALT DT 12 12/12 5.11 13 1.1 Yes 2900 No - - - - - COPPER DT 12 12/12 36.95 220 2.8 Yes 48 Yes 290 No - - -

LEAD DT 12 12/12 233.79 1300 7 Yes 41.09 Yes 400 Yes G 550.3 550.3 MANGANESE DT 12 12/12 97.34 260 40.7 Yes 560 No - - - - -

DT 10 3.1 0.066

Non-DT 2 0.037 0.02

NICKEL DT 12 12/12 19.44 120 4.8 Yes 140 No - - - - -

DT 6 2.8 0.6

Non-DT 6 2.7 0.33

DT 6 44 3

Non-DT 6 1.1 0.05 THALLIUM Non-DT 12 0/12 1.41 5.5 0.3 No - - - - - - - VANADIUM DT 12 12/12 18.93 62 4.7 Yes 28 Yes 39 Yes G 26.75 26.75

ZINC DT 12 12/12 91.11 400 15 Yes 247.9 Yes 2300 No - - - ALUMINUM DT 10 10/10 5896.60 8600 66 Yes 18049 No - - - - -

DT 5 16 4.1

Non-DT 5 2.6 2.1

DT 9 25 1.3

Non-DT 1 1.2 1.2

BARIUM DT 10 10/10 275.80 1900 14 Yes 140 Yes 1600 Yes G 657.50 657.50

2A

TABLE B-1-2: IDENTIFICATION OF SURFACE SOIL COPCS AND DETERMINATION

OF EXPOSURE POINT CONCENTRATION OF EACH COPC - METALS

EUs

- - -SILVER 6/12 6.21

X 12.5 12.5

Yes X 16.68 16.68ARSENIC 9/10 6.02 Yes 0.394.95 Yes

YesANTIMONY 5/10 6.30 Yes ND Yes 3.1

Yes

X 1.947 1.947

65 No - -

No - - -SELENIUM 6/12 0.96 Yes 391.27 Yes

YesMERCURY 10/12 0.77 Yes 0.24 Yes 2.3

1.4 No - -CADMIUM 4/12 0.54 Yes

BERYLLIUM 2/12 0.50 Yes 0.925 No - -

X 3.075 3.075

Yes X 10.84 10.84ARSENIC 10/12 4.03 Yes 0.394.95 Yes

YesANTIMONY 4/12 2.27 Yes ND Yes 3.1

Consider for

BKGD4

Evaluation?

Bkgd Conc

(mg\kg)

Considered for Risk Screen?

Region VI Risk

Screen

Considered for COPC5

Evaluation?

Dist6 UCL95

(mg\kg)

EPC8

(mg\kg) Concentration3 (mg/kg)

Metals Detect?1 # of Samples FOD2

CABRERA SERVICES INC. B - 6

Mean Max Min EUs

Consider for

BKGD4

Evaluation?

Bkgd Conc

(mg\kg)

Considered for Risk Screen?

Region VI Risk

Screen

Considered for COPC5

Evaluation?

Dist6 UCL95

(mg\kg)

EPC8

(mg\kg) Concentration3 (mg/kg)

Metals Detect?1 # of Samples FOD2

DT 1 1.2 1.2

Non-DT 9 0.65 0.5

DT 4 2.5 1

Non-DT 6 0.65 0.52

DT 9 36 8.1

Non-DT 1 1.3 1.3

DT 8 9.8 1.2

Non-DT 2 12 1.3

COPPER DT 10 10/10 122.2 710 1.6 Yes 48 Yes 290 Yes G 495.20 495.20 LEAD DT 10 10/10 676.0 3700 2.6 Yes 41.09 Yes 400 Yes G 3003 3003.0

MANGANESE DT 10 10/10 150.3 550 4 Yes 560 No - - - - -

DT 6 2.2 0.19

Non-DT 4 0.039 0.035

DT 9 40 2.8

Non-DT 1 2.6 2.6

DT 6 4 0.67

Non-DT 4 0.65 0.53

DT 1 2.4 2.4

Non-DT 9 1.2 1 THALLIUM Non-DT 10 0/10 1.7 5 1 No - - - - - - -

DT 9 31 9.5

Non-DT 1 1.3 1.3

DT 9 990 8.4

Non-DT 1 2.6 2.6

ALUMINUM DT 10 10/10 4930 11000 2200 Yes 18049 No - - - - -

DT 3 6.3 2.6

Non-DT 7 2.2 2

DT 9 6.4 1.8

Non-DT 1 1.1 1.1

DT 8 130 12

Non-DT 2 11 10

DT 1 0.52 0.52

Non-DT 9 0.59 0.5 CADMIUM Non-DT 10 0/10 0.53 0.59 0.5 No - No - - - - -

CHROMIUM DT 10 10/10 24.32 48 2.5 Yes 19 Yes 30 Yes N 33.64 33.64

3A

2A cont.

- - -BERYLLIUM 1/10 0.53 Yes

Yes

0.925 No - -

140 - -

X 4.3 4.3

No - -BARIUM 8/10 42.60 Yes -

3.95 3.95

ARSENIC 9/10 3.26 Yes 4.95 Yes 0.39

ANTIMONY 3/10 2.78 Yes ND Yes 3.1 Yes X

- -247.9 Yes 2300 -No

No

ZINC 9/10 219.3 Yes

VANADIUM 9/10 15.8 Yes -- -

65 No - -

28 Yes 39

SILVER 1/10 1.2 Yes

SELENIUM 6/10 1.5 Yes 1.27 Yes 39 No

-NICKEL 9/10 14.4 Yes 140 No -

0.24 Yes No -MERCURY 6/10 0.7 Yes

X 23.93 23.93

2.3 - -

- - - -COBALT 8/10 3.87 Yes -2900 No

Yes19 Yes 30CHROMIUM 9/10 17.00 Yes

1.4 Yes No -CADMIUM 4/10 0.99 Yes

BERYLLIUM 1/10 0.62 Yes 0.925 Yes 16 No

3.9 - -

CABRERA SERVICES INC. B - 7

Mean Max Min EUs

Consider for

BKGD4

Evaluation?

Bkgd Conc

(mg\kg)

Considered for Risk Screen?

Region VI Risk

Screen

Considered for COPC5

Evaluation?

Dist6 UCL95

(mg\kg)

EPC8

(mg\kg) Concentration3 (mg/kg)

Metals Detect?1 # of Samples FOD2

DT 8 18 1.4

Non-DT 2 1.1 1

COPPER DT 10 10/10 44.09 130 1.2 Yes 48 Yes 290 No LEAD DT 10 10/10 370.87 1400 2.2 Yes 41.09 Yes 400 Yes G 1048 1048

MANGANESE DT 10 10/10 117.10 420 21 Yes 560 No - -

DT 8 2.5 0.13

Non-DT 2 0.035 0.035

DT 9 420 5.1

Non-DT 1 2.1 2.1

DT 6 1.7 0.68

Non-DT 4 0.54 0.51 SILVER Non-DT 10 0/10 1.06 1.2 1 Yes 65 No - - - - -

THALLIUM Non-DT 10 0/10 1.39 2.3 1 No - No - - - - - VANADIUM DT 10 10/10 15.96 31 4.6 Yes 28 Yes 39 No - - -

ZINC DT 10 10/10 56.03 140 3.3 Yes 247.9 No - - - - - ALUMINUM DT 10 10/10 5070 8700 3200 Yes 18049 No - - - - -

DT 1 7 7

Non-DT 9 2.4 2.1

DT 9 2.5 1.5

Non-DT 1 1.1 1.1

DT 9 52 13

Non-DT 1 11 11

BERYLLIUM Non-DT 10 0/10 0.548 0.61 0.52 No - - - - -

DT 1 0.94 0.94

Non-DT 9 0.61 0.52

DT 7 1000 200

Non-DT 3 110 110 CHROMIUM DT 10 10/10 11.2 21 5.1 Yes 19 Yes 30 No - - -

COBALT DT 10 10/10 3.12 10 1.5 Yes 2900 No - - - - - COPPER DT 10 10/10 32.03 200 1.7 Yes 48 Yes 290 No - - -

LEAD DT 10 10/10 44.28 210 2.6 Yes 41.09 Yes 400 No - - - MANGANESE DT 10 10/10 92.4 340 35 Yes 560 No - - - - -

DT 5 11 0.082

Non-DT 5 0.036 0.035

NICKEL DT 10 10/10 6.2 12 3.3 Yes 140 No - - - - -

3B

CALCIUM 7/10 353

CADMIUM 1/10 0.581

MERCURY 5/10 1.462 Yes 0.24 Yes

3A Cont.

Yes2.3

X 3.58 3.58

No - -

1.4 No - -Yes

BARIUM 9/10 22.4 Yes 140 No - -

X 7 7

- - - -ARSENIC 9/10 1.76 Yes -4.95 No

YesANTIMONY 1/10 2.66 Yes ND Yes 3.1

- - -SELENIUM 6/10 0.92 Yes

X 1.67 1.67

1.27 Yes 39 No

Yes X 311 311NICKEL 9/10 55.93 Yes 160140 Yes

YesMERCURY 8/10 0.57 Yes 0.24 Yes 2.3

COBALT 8/10 4.08 Yes -2900 No -

CABRERA SERVICES INC. B - 8

Mean Max Min EUs

Consider for

BKGD4

Evaluation?

Bkgd Conc

(mg\kg)

Considered for Risk Screen?

Region VI Risk

Screen

Considered for COPC5

Evaluation?

Dist6 UCL95

(mg\kg)

EPC8

(mg\kg) Concentration3 (mg/kg)

Metals Detect?1 # of Samples FOD2

DT 2 0.77 0.68

Non-DT 8 0.61 0.52

SILVER Non-DT 10 0/10 1.08 1.2 1 No - No - - - - - THALLIUM Non-DT 10 0/10 1.08 1.2 1 No - No - - - - - VANADIUM DT 10 10/10 13.71 25 7.1 Yes 28 No - - - - -

ZINC DT 10 10/10 51.6 260 11 Yes 247.9 Yes 2300 No - - -

2/10 0.5843B Cont.

Yes 1.27 NoSELENIUM - - - - -

Footnotes 1 DT = Detected; Non-DT = Non-Detect;

2 FOD = Frequency of Detection (i.e., Detected/Total # of Samples)

8 EPC = Exposure point concentration

3 Max = Maximum; Min = Minimum

7 UCL95 = 95% of the upper confidence limit of the mean

6 Dist = Distribution of Sampling Results; N = Normal; L = Lognormal; G =Gamma; X = Non-parametric

5 COPC = Contaminant of Potential Concern

4 BKGD = Background

CABRERA SERVICES INC. B - 9

Mean Max Min 1,1,1,2-TETRACHLOROETHANE Non-DT 10 0/10 5.5 5.7 5.2 No - - - - - - 1,1,1-TRICHLOROETHANE Non-DT 12 0/12 5.4 5.7 5 No - - - - - - 1,1,2,2-TETRACHLOROETHANE Non-DT 12 0/12 5.4 5.7 5 No - - - - - -

1,1,2-TRICHLORO-1,2,2-

TRIFLUOROETHANE Non-DT 10 0/10 5.5 5.7 5.2 No - - - - - -

1,1,2-TRICHLOROETHANE Non-DT 12 0/12 5.4 5.7 5 No - - - - - - 1,1-DICHLOROETHANE Non-DT 12 0/12 5.4 5.7 5 No - - - - - - 1,1-DICHLOROETHENE Non-DT 12 0/12 5.4 5.7 5 No - - - - - - 1,1-DICHLOROPROPENE Non-DT 10 0/10 5.5 5.7 5.2 No - - - - - - 1,2,3-TRICHLOROBENZENE Non-DT 10 0/10 5.5 5.7 5.2 No - - - - - - 1,2,3-TRICHLOROPROPANE Non-DT 10 0/10 5.5 5.7 5.2 No - - - - - -

DT 1 2.9 2.9

Non-DT 9 5.7 5.2

DT 1 2.8 2.8

Non-DT 9 5.6 5.2

1,2-DIBROMO-3-CHLOROPROPANE Non-DT 10 0/10 10.9 11 10 No - - - - - - 1,2-DIBROMOETHANE Non-DT 10 0/10 5.5 5.7 5.2 No - - - - - - 1,2-DICHLOROBENZENE Non-DT 10 0/10 5.5 5.7 5.2 No - - - - - - 1,2-DICHLOROETHANE Non-DT 12 0/12 5.4 5.7 5 No - - - - - -

DT 1 4 4

Non-DT 1 5 5

1,2-DICHLOROPROPANE Non-DT 12 0/12 5.4 5.7 5 No - - - - - -

DT 1 3.5 3.5

Non-DT 9 5.6 5.2 1,3-DICHLOROBENZENE Non-DT 10 0/10 5.5 5.7 5.2 No - - - - - - 1,3-DICHLOROPROPANE Non-DT 10 0/10 5.5 5.7 5.2 No - - - - - - 1,4-DICHLOROBENZENE Non-DT 10 0/10 5.5 5.7 5.2 No - - - - - - 1-CHLOROHEXANE Non-DT 10 0/10 5.5 5.7 5.2 No - - - - - - 2,2-DICHLOROPROPANE Non-DT 10 0/10 5.5 5.7 5.2 No - - - - - -

DT 1 22 22

Non-DT 11 23 10

2-CHLOROTOLUENE Non-DT 10 0/10 5.5 5.7 5.2 No - - - - - - 2-HEXANONE Non-DT 12 0/12 20.0 23 10 No - - - - - - 4-CHLOROTOLUENE Non-DT 10 0/10 5.5 5.7 5.2 No - - - - - - 4-METHYL-2-PENTANONE Non-DT 12 0/12 20.0 23 10 No - - - - - -

TABLE B-1-3: IDENTIFICATION OF SURFACE SOIL COPCS AND DETERMINATION

EUs

OF EXPOSURE POINT CONCENTRATION OF EACH COPC - VOC's

2-BUTANONE 1/12 20.0 Yes 3.2E+07 No -

1,3,5-TRIMETHYLBENZENE 1/10 5.3 Yes 2.1E+03 No -

1,2-DICHLOROETHENE (TOTAL) 1/2 4.5 Yes NA Yes No

1,2,4-TRIMETHYLBENZENE 1/10 5.2 Yes 5.7E+03 No -

Dist5 UCL95

(ug/kg)

EPC7

(ug/kg)

1,2,4-TRICHLOROBENZENE 1/10 5.2 Yes 1.4E+04 No -

VOCs Detect?1 # of Samples FOD2

Availability of Toxicity

Value?

Concentration3 (ug/kg) Considered for Risk Screen?

Region

VI PRG

(ug/kg)

Considered for COPC4

Evaluation?

CABRERA SERVICES INC. B - 10

Mean Max Min EUs Dist5 UCL95

(ug/kg)

EPC7

(ug/kg) VOCs Detect?1 # of

Samples FOD2 Availability of Toxicity

Value?

Concentration3 (ug/kg) Considered for Risk Screen?

Region

VI PRG

(ug/kg)

Considered for COPC4

Evaluation?

DT 5 74 10

Non-DT 7 22 21

DT 1 2 2

Non-DT 11 5.7 5 BROMOBENZENE Non-DT 10 0/10 5.5 5.7 5.2 No - - - - - - BROMOCHLOROMETHANE Non-DT 10 0/10 5.5 5.7 5.2 No - - - - - - BROMODICHLOROMETHANE Non-DT 12 0/12 5.4 5.7 5 No - - - - - - BROMOFORM Non-DT 12 0/12 5.4 5.7 5 No - - - - - - BROMOMETHANE Non-DT 12 0/12 6.2 10 5.2 No - - - - - - CARBON DISULFIDE Non-DT 12 0/12 5.4 5.7 5 No - - - - - - CARBON TETRACHLORIDE Non-DT 12 0/12 5.4 5.7 5 No - - - - - -

DT 1 65 65

Non-DT 11 5.7 5

CHLOROETHANE Non-DT 12 0/12 6.2 10 5.2 No - - - - - - CHLOROFORM Non-DT 12 0/12 5.4 5.7 5 No - - - - - - CHLOROMETHANE Non-DT 12 0/12 6.2 10 5.2 No - - - - - - CIS-1,2-DICHLOROETHENE Non-DT 10 0/10 5.5 5.7 5.2 No - - - - - - CIS-1,3-DICHLOROPROPENE Non-DT 12 0/12 5.4 5.7 5 No - - - - - - DIBROMOCHLOROMETHANE Non-DT 12 0/12 5.4 5.7 5 No - - - - - - DIBROMOMETHANE Non-DT 10 0/10 5.5 5.7 5.2 No - - - - - - DICHLORODIFLUOROMETHANE Non-DT 10 0/10 5.5 5.7 5.2 No - - - - - - ETHYLBENZENE Non-DT 12 0/12 5.4 5.7 5 No - - - - - - HEXACHLOROBUTADIENE Non-DT 10 0/10 5.5 5.7 5.2 No - - - - - - IODOMETHANE Non-DT 10 0/10 5.5 5.7 5.2 No - - - - - - ISOPROPYLBENZENE Non-DT 10 0/10 5.5 5.7 5.2 No - - - - - -

DT 2 4.1 3.6

Non-DT 8 5.6 5.2

METHYL TERTIARY BUTYL ETHER Non-DT 10 0/10 5.5 5.7 5.2 No - - - - - -

DT 2 12 6

Non-DT 10 5.6 5

DT 2 31 1.9

Non-DT 8 5.6 5.2 N-BUTYLBENZENE Non-DT 10 0/10 5.5 5.7 5.2 No - - - - - - N-PROPYLBENZENE Non-DT 10 0/10 5.5 5.7 5.2 No - - - - - - O-XYLENE Non-DT 10 0/10 5.5 5.7 5.2 No - - - - - - P-ISOPROPYLTOLUENE Non-DT 10 0/10 5.5 5.7 5.2 No - - - - - - SEC-BUTYLBENZENE Non-DT 10 0/10 5.5 5.7 5.2 No - - - - - - STYRENE Non-DT 12 0/12 5.4 5.7 5 No - - - - - -cont.

NAPHTHALENE 2/10 16.5 Yes 1.2E+04 No -

METHYLENE CHLORIDE 2/12 9.0 Yes 8.9E+03 No -

M+P-XYLENE 2/10 3.9 Yes 2.1E+05 No -

CHLOROBENZENE 1/12 10.4 Yes 2.7E+04 No -

BENZENE 1/12 5.1 Yes 6.6E+02 No -

ACETONE 5/12 31.6 Yes 1.4E+06 No -

CABRERA SERVICES INC. B - 11

Mean Max Min EUs Dist5 UCL95

(ug/kg)

EPC7

(ug/kg) VOCs Detect?1 # of

Samples FOD2 Availability of Toxicity

Value?

Concentration3 (ug/kg) Considered for Risk Screen?

Region

VI PRG

(ug/kg)

Considered for COPC4

Evaluation?

TERT-BUTYLBENZENE Non-DT 10 0/10 5.5 5.7 5.2 No - - - - - - TETRACHLOROETHENE Non-DT 12 0/12 5.4 5.7 5 No - - - - - - TOLUENE Non-DT 12 0/12 5.4 5.7 5 No - - - - - - TRANS-1,2-DICHLOROETHENE Non-DT 10 0/10 5.5 5.7 5.2 No - - - - - - TRANS-1,3-DICHLOROPROPENE Non-DT 12 0/12 5.4 5.7 5 No - - - - - -

DT 1 6 6

Non-DT 11 5.7 5

TRICHLOROFLUOROMETHANE Non-DT 10 0/10 5.5 5.7 5.2 No - - - - - - VINYL ACETATE Non-DT 10 0/10 22.0 23 21 No - - - - - - VINYL CHLORIDE Non-DT 12 0/12 6.2 10 5.2 No - - - - - - XYLENE (TOTAL) Non-DT 2 0/2 5.0 5 5 No - - - - - - 1,1,1,2-TETRACHLOROETHANE Non-DT 10 0/10 5.77 6.6 5.1 No - - - - - - 1,1,1-TRICHLOROETHANE Non-DT 10 0/10 5.77 6.6 5.1 No - - - - - - 1,1,2,2-TETRACHLOROETHANE Non-DT 10 0/10 5.77 6.6 5.1 No - - - - - -

1,1,2-TRICHLORO-1,2,2-

TRIFLUOROETHANE Non-DT 10 0/10 5.77 6.6 5.1 No - - - - - -

1,1,2-TRICHLOROETHANE Non-DT 10 0/10 5.77 6.6 5.1 No - - - - - - 1,1-DICHLOROETHANE Non-DT 10 0/10 5.77 6.6 5.1 No - - - - - - 1,1-DICHLOROETHENE Non-DT 10 0/10 5.77 6.6 5.1 No - - - - - - 1,1-DICHLOROPROPENE Non-DT 10 0/10 5.77 6.6 5.1 No - - - - - -

DT 1 3.7 3.7

Non-DT 9 6.6 5.1

1,2,3-TRICHLOROPROPANE Non-DT 10 0/10 5.77 6.6 5.1 No - - - - - -

DT 1 8.3 8.3

Non-DT 9 6.6 5.1

DT 1 5.3 5.3

Non-DT 9 6.6 5.1 1,2-DIBROMO-3-CHLOROPROPANE Non-DT 10 0/10 11.5 13 10 No - - - - - - 1,2-DIBROMOETHANE Non-DT 10 0/10 5.77 6.6 5.1 No - - - - - -

DT 1 23 23

Non-DT 9 6.6 5.1

1,2-DICHLOROETHANE Non-DT 10 0/10 5.77 6.6 5.1 No - - - - - - 1,2-DICHLOROPROPANE Non-DT 10 0/10 5.77 6.6 5.1 No - - - - - -

DT 1 5.4 5.4

Non-DT 9 6.6 5.1

1,3-DICHLOROBENZENE Non-DT 10 0/10 5.77 6.6 5.1 No - - - - - - 1,3-DICHLOROPROPANE Non-DT 10 0/10 5.77 6.6 5.1 No - - - - - -

DT 1 18 18

Non-DT 9 6.6 5.1 cont.

2A

1,4-DICHLOROBENZENE 1/10 7 Yes 3.2E+03 No - -

1,3,5-TRIMETHYLBENZENE 1/10 5.74 Yes 2.1E+03 No - -

1,2-DICHLOROBENZENE 1/10 7.5 Yes 2.8E+04 No - -

1,2,4-TRIMETHYLBENZENE 1/10 5.73 Yes 5.7E+03 No - -

1,2,4-TRICHLOROBENZENE 1/10 6.03 Yes 1.4E+04 No - -

NA Yes No -1,2,3-TRICHLOROBENZENE 1/10 5.57 Yes

- -TRICHLOROETHENE 1/12 6.0 Yes 4.3E+01 No - -

CABRERA SERVICES INC. B - 12

Mean Max Min EUs Dist5 UCL95

(ug/kg)

EPC7

(ug/kg) VOCs Detect?1 # of

Samples FOD2 Availability of Toxicity

Value?

Concentration3 (ug/kg) Considered for Risk Screen?

Region

VI PRG

(ug/kg)

Considered for COPC4

Evaluation?

1-CHLOROHEXANE Non-DT 10 0/10 5.77 6.6 5.1 No - - - - - - 2,2-DICHLOROPROPANE Non-DT 10 0/10 5.77 6.6 5.1 No - - - - - -

DT 1 40 40

Non-DT 9 26 21

2-CHLOROTOLUENE Non-DT 10 0/10 5.77 6.6 5.1 No - - - - - - 2-HEXANONE Non-DT 10 0/10 23.1 26 21 No - - - - - - 4-CHLOROTOLUENE Non-DT 10 0/10 5.77 6.6 5.1 No - - - - - - 4-METHYL-2-PENTANONE Non-DT 10 0/10 23.1 26 21 No - - - - - -

DT 2 82 77

Non-DT 8 26 21

DT 1 12 12

Non-DT 9 6.6 5.1

BROMOBENZENE Non-DT 10 0/10 5.77 6.6 5.1 No - - - - - - BROMOCHLOROMETHANE Non-DT 10 0/10 5.77 6.6 5.1 No - - - - - - BROMODICHLOROMETHANE Non-DT 10 0/10 5.77 6.6 5.1 No - - - - - - BROMOFORM Non-DT 10 0/10 5.77 6.6 5.1 No - - - - - - BROMOMETHANE Non-DT 10 0/10 5.77 6.6 5.1 No - - - - - -

DT 1 4.4 4.4

Non-DT 9 6.6 5.1

CARBON TETRACHLORIDE Non-DT 10 0/10 5.77 6.6 5.1 No - - - - - -

DT 1 59 59

Non-DT 9 6.6 5.1 CHLOROETHANE Non-DT 10 0/10 5.77 6.6 5.1 No - - - - - -

DT 1 2.9 2.9

Non-DT 9 6.6 5.1

CHLOROMETHANE Non-DT 10 0/10 5.77 6.6 5.1 No - - - - - - CIS-1,2-DICHLOROETHENE Non-DT 10 0/10 5.77 6.6 5.1 No - - - - - - CIS-1,3-DICHLOROPROPENE Non-DT 10 0/10 5.77 6.6 5.1 No - - - - - - DIBROMOCHLOROMETHANE Non-DT 10 0/10 5.77 6.6 5.1 No - - - - - - DIBROMOMETHANE Non-DT 10 0/10 5.77 6.6 5.1 No - - - - - - DICHLORODIFLUOROMETHANE Non-DT 10 0/10 5.77 6.6 5.1 No - - - - - -

DT 2 3.9 3

Non-DT 8 6.6 5.1

HEXACHLOROBUTADIENE Non-DT 10 0/10 5.77 6.6 5.1 No - - - - - - IODOMETHANE Non-DT 10 0/10 5.77 6.6 5.1 No - - - - - -

DT 1 2 2

Non-DT 9 6.6 5.1

2A cont.

ISOPROPYLBENZENE 1/10 5.4 Yes 3.7E+05 No - -

ETHYLBENZENE 2/10 5.26 Yes 2.3E+05 No - -

CHLOROFORM 1/10 5.44 Yes 2.5E+02 No - -

CHLOROBENZENE 1/10 11.1 Yes 2.7E+04 No - -

CARBON DISULFIDE 1/10 5.58 Yes 7.2E+05 No - -

BENZENE 1/10 6.4 Yes 6.6E+02 No - -

ACETONE 2/10 34.2 Yes 1.4E+06 No - -

2-BUTANONE 1/10 24.8 Yes 3.2E+07 No -

CABRERA SERVICES INC. B - 13

Mean Max Min EUs Dist5 UCL95

(ug/kg)

EPC7

(ug/kg) VOCs Detect?1 # of

Samples FOD2 Availability of Toxicity

Value?

Concentration3 (ug/kg) Considered for Risk Screen?

Region

VI PRG

(ug/kg)

Considered for COPC4

Evaluation?

DT 3 28 5.3

Non-DT 7 6.6 5.1 METHYL TERTIARY BUTYL ETHER Non-DT 10 0/10 5.77 6.6 5.1 No - - - - - - METHYLENE CHLORIDE Non-DT 10 0/10 5.77 6.6 5.1 No - - - - - -

DT 1 10 10

Non-DT 9 6.6 5.1

DT 1 3.1 3.1

Non-DT 9 6.6 5.1

N-PROPYLBENZENE Non-DT 10 0/10 5.77 6.6 5.1 No - - - - - -

DT 2 7.3 3.3

Non-DT 8 6.6 5.1

DT 1 100 100

Non-DT 9 6.6 5.1 SEC-BUTYLBENZENE Non-DT 10 0/10 5.77 6.6 5.1 No - - - - - - STYRENE Non-DT 10 0/10 5.77 6.6 5.1 No - - - - - - TERT-BUTYLBENZENE Non-DT 10 0/10 5.77 6.6 5.1 No - - - - - - TETRACHLOROETHENE Non-DT 10 0/10 5.77 6.6 5.1 No - - - - - -

DT 2 32 2.4

Non-DT 8 6.6 5.1

TRANS-1,2-DICHLOROETHENE Non-DT 10 0/10 5.77 6.6 5.1 No - - - - - - TRANS-1,3-DICHLOROPROPENE Non-DT 10 0/10 5.77 6.6 5.1 No - - - - - - TRICHLOROETHENE Non-DT 10 0/10 5.77 6.6 5.1 No - - - - - - TRICHLOROFLUOROMETHANE Non-DT 10 0/10 5.77 6.6 5.1 No - - - - - - VINYL ACETATE Non-DT 10 0/10 23.1 26 21 No - - - - - - VINYL CHLORIDE Non-DT 10 0/10 5.77 6.6 5.1 No - - - - - - 1,1,1,2-TETRACHLOROETHANE Non-DT 10 0/10 35.03 290 5.1 No - - - - - - 1,1,1-TRICHLOROETHANE Non-DT 10 0/10 35.03 290 5.1 No - - - - - - 1,1,2,2-TETRACHLOROETHANE Non-DT 10 0/10 35.03 290 5.1 No - - - - - -

1,1,2-TRICHLORO-1,2,2-

TRIFLUOROETHANE Non-DT 10 0/10 35.03 290 5.1 No - - - - - -

1,1,2-TRICHLOROETHANE Non-DT 10 0/10 35.03 290 5.1 No - - - - - - 1,1-DICHLOROETHANE Non-DT 10 0/10 35.03 290 5.1 No - - - - - - 1,1-DICHLOROETHENE Non-DT 10 0/10 35.03 290 5.1 No - - - - - - 1,1-DICHLOROPROPENE Non-DT 10 0/10 35.03 290 5.1 No - - - - - -

DT 3 11 4

Non-DT 7 290 5.1

1,2,3-TRICHLOROPROPANE Non-DT 10 0/10 35.03 290 5.1 No - - - - - -

DT 5 180 3.7

Non-DT 5 11 5.1

2A cont.

3A

1,2,4-TRICHLOROBENZENE 5/10 41.2 Yes 1.4E+04 No - - -

1,2,3-TRICHLOROBENZENE 3/10 35.04 Yes NA Yes No - -

TOLUENE 2/10 8.01 Yes 5.2E+05 No - -

P-ISOPROPYLTOLUENE 1/10 15.2 Yes NA Yes No -

O-XYLENE 2/10 5.63 Yes 2.8E+05 No - -

N-BUTYLBENZENE 1/10 5.51 Yes 1.4E+04 No - -

NAPHTHALENE 1/10 6.2 Yes 1.2E+04 No - -

M+P-XYLENE 3/10 8.48 Yes 2.1E+05 No - -

CABRERA SERVICES INC. B - 14

Mean Max Min EUs Dist5 UCL95

(ug/kg)

EPC7

(ug/kg) VOCs Detect?1 # of

Samples FOD2 Availability of Toxicity

Value?

Concentration3 (ug/kg) Considered for Risk Screen?

Region

VI PRG

(ug/kg)

Considered for COPC4

Evaluation?

DT 2 6700 8.9

Non-DT 8 12 5.1 1,2-DIBROMO-3-CHLOROPROPANE Non-DT 10 0/10 70.1 580 10 No - - - - - - 1,2-DIBROMOETHANE Non-DT 10 0/10 35.03 290 5.1 No - - - - - -

DT 7 1300 8.1

Non-DT 3 5.6 5.1

1,2-DICHLOROETHANE Non-DT 10 0/10 35.03 290 5.1 No - - - - - - 1,2-DICHLOROPROPANE Non-DT 10 0/10 35.03 290 5.1 No - - - - - -

DT 2 6000 2.3

Non-DT 8 12 5.1

DT 2 5.9 4.9

Non-DT 8 290 5.1

1,3-DICHLOROPROPANE Non-DT 10 0/10 35.03 290 5.1 No - - - - - -

DT 7 210 2.3

Non-DT 3 5.6 5.1 1-CHLOROHEXANE Non-DT 10 0/10 35.03 290 5.1 No - - - - - - 2,2-DICHLOROPROPANE Non-DT 10 0/10 35.03 290 5.1 No - - - - - -

DT 1 200 200

Non-DT 9 1200 20

2-CHLOROTOLUENE Non-DT 10 0/10 35.03 290 5.1 No - - - - - - 2-HEXANONE Non-DT 10 0/10 144 1200 20 No - - - - - - 4-CHLOROTOLUENE Non-DT 10 0/10 35.03 290 5.1 No - - - - - - 4-METHYL-2-PENTANONE Non-DT 10 0/10 144 1200 20 No - - - - - -

DT 2 1400 830

Non-DT 8 48 20

DT 1 210 210

Non-DT 9 12 5.1

BROMOBENZENE Non-DT 10 0/10 35.03 290 5.1 No - - - - - - BROMOCHLOROMETHANE Non-DT 10 0/10 35.03 290 5.1 No - - - - - - BROMODICHLOROMETHANE Non-DT 10 0/10 35.03 290 5.1 No - - - - - - BROMOFORM Non-DT 10 0/10 35.03 290 5.1 No - - - - - - BROMOMETHANE Non-DT 10 0/10 35.03 290 5.1 No - - - - - -

DT 1 6.9 6.9

Non-DT 9 290 5.1

CARBON TETRACHLORIDE Non-DT 10 0/10 35.03 290 5.1 No - - - - - -

DT 6 160 2.1

Non-DT 4 5.6 5.1 CHLOROETHANE Non-DT 10 0/10 35.03 290 5.1 No - - - - - - CHLOROFORM Non-DT 10 0/10 35.03 290 5.1 No - - - - - -

3A cont.

CHLOROBENZENE 6/10 20.85 Yes 2.7E+04 No - - -

CARBON DISULFIDE 1/10 34.62 Yes 7.2E+05 No - - -

BENZENE 1/10 27.03 Yes 6.6E+02 No - - -

ACETONE 2/10 242.6 Yes 1.4E+06 No - - -

2-BUTANONE 1/10 159.6 Yes 3.2E+07 No - -

1,4-DICHLOROBENZENE 7/10 35.73 Yes 3.2E+03 No - - -

1,3-DICHLOROBENZENE 2/10 35.04 Yes 6.9E+03 No - - -

1,3,5-TRIMETHYLBENZENE 2/10 605.73 Yes 2.1E+03 Yes Yes X 6000

1,2-DICHLOROBENZENE 7/10 176.22 Yes 2.8E+04 No - - -

1,2,4-TRIMETHYLBENZENE 2/10 676.39 Yes 5.7E+03 Yes Yes X 6700

CABRERA SERVICES INC. B - 15

Mean Max Min EUs Dist5 UCL95

(ug/kg)

EPC7

(ug/kg) VOCs Detect?1 # of

Samples FOD2 Availability of Toxicity

Value?

Concentration3 (ug/kg) Considered for Risk Screen?

Region

VI PRG

(ug/kg)

Considered for COPC4

Evaluation?

CHLOROMETHANE Non-DT 10 0/10 35.03 290 5.1 No - - - - - - CIS-1,2-DICHLOROETHENE Non-DT 10 0/10 35.03 290 5.1 No - - - - - - CIS-1,3-DICHLOROPROPENE Non-DT 10 0/10 35.03 290 5.1 No - - - - - - DIBROMOCHLOROMETHANE Non-DT 10 0/10 35.03 290 5.1 No - - - - - - DIBROMOMETHANE Non-DT 10 0/10 35.03 290 5.1 No - - - - - - DICHLORODIFLUOROMETHANE Non-DT 10 0/10 35.03 290 5.1 No - - - - - -

DT 1 3700 3700

Non-DT 9 12 5.1

HEXACHLOROBUTADIENE Non-DT 10 0/10 35.03 290 5.1 No - - - - - - IODOMETHANE Non-DT 10 0/10 35.03 290 5.1 No - - - - - -

DT 1 350 350

Non-DT 9 12 5.1

DT 5 3900 2.2

Non-DT 5 12 5.1

METHYL TERTIARY BUTYL ETHER Non-DT 10 0/10 35.03 290 5.1 No - - - - - -

DT 1 2 2

Non-DT 9 290 5.1

DT 7 1400 2.1

Non-DT 3 5.6 5.1

DT 1 230 230

Non-DT 9 12 5.1

DT 1 680 680

Non-DT 9 12 5.1

DT 1 220 220

Non-DT 9 12 5.1

DT 2 140 4.8

Non-DT 8 290 5.1 SEC-BUTYLBENZENE Non-DT 10 0/10 35.03 290 5.1 No - - - - - - STYRENE Non-DT 10 0/10 35.03 290 5.1 No - - - - - - TERT-BUTYLBENZENE Non-DT 10 0/10 35.03 290 5.1 No - - - - - - TETRACHLOROETHENE Non-DT 10 0/10 35.03 290 5.1 No - - - - - -

DT 5 280 1.7

Non-DT 5 12 5.1

TRANS-1,2-DICHLOROETHENE Non-DT 10 0/10 35.03 290 5.1 No - - - - - - TRANS-1,3-DICHLOROPROPENE Non-DT 10 0/10 35.03 290 5.1 No - - - - - - TRICHLOROETHENE Non-DT 10 0/10 35.03 290 5.1 No - - - - - - TRICHLOROFLUOROMETHANE Non-DT 10 0/10 35.03 290 5.1 No - - - - - - VINYL ACETATE Non-DT 10 0/10 144 1200 20 No - - - - - - VINYL CHLORIDE Non-DT 10 0/10 35.03 290 5.1 No - - - - - -

3A cont.

TOLUENE 5/10 34.01 Yes 5.2E+05 No - - -

P-ISOPROPYLTOLUENE 2/10 48.44 Yes NA Yes No - -

O-XYLENE 1/10 28.03 Yes 2.8E+05 No - - -

N-PROPYLBENZENE 1/10 74.03 Yes 1.4E+04 No - - -

N-BUTYLBENZENE 1/10 29.03 Yes 1.4E+04 No - - -

NAPHTHALENE 7/10 193.02 Yes 1.2E+04 No - - -

METHYLENE CHLORIDE 1/10 34.71 Yes 8.9E+03 No - - -

M+P-XYLENE 5/10 394.86 Yes 2.1E+05 No - - -

ISOPROPYLBENZENE 1/10 41.03 Yes 3.7E+05 No - - -

ETHYLBENZENE 1/10 376.03 Yes 2.3E+05 No - - -

CABRERA SERVICES INC. B - 16

Mean Max Min EUs Dist5 UCL95

(ug/kg)

EPC7

(ug/kg) VOCs Detect?1 # of

Samples FOD2 Availability of Toxicity

Value?

Concentration3 (ug/kg) Considered for Risk Screen?

Region

VI PRG

(ug/kg)

Considered for COPC4

Evaluation?

1,1,1,2-TETRACHLOROETHANE Non-DT 10 0/10 5.58 6.3 5.3 No - - - - - - 1,1,1-TRICHLOROETHANE Non-DT 10 0/10 5.58 6.3 5.3 No - - - - - - 1,1,2,2-TETRACHLOROETHANE Non-DT 10 0/10 5.58 6.3 5.3 No - - - - - -

1,1,2-TRICHLORO-1,2,2-

TRIFLUOROETHANE Non-DT 10 0/10 5.58 6.3 5.3 No - - - - - -

1,1,2-TRICHLOROETHANE Non-DT 10 0/10 5.58 6.3 5.3 No - - - - - - 1,1-DICHLOROETHANE Non-DT 10 0/10 5.58 6.3 5.3 No - - - - - - 1,1-DICHLOROETHENE Non-DT 10 0/10 5.58 6.3 5.3 No - - - - - - 1,1-DICHLOROPROPENE Non-DT 10 0/10 5.58 6.3 5.3 No - - - - - -

DT 1 8.4 8.4

Non-DT 9 6.3 5.3

1,2,3-TRICHLOROPROPANE Non-DT 10 0/10 5.58 6.3 5.3 No - - - - - -

DT 1 27 27

Non-DT 9 6.3 5.3

DT 1 500 500

Non-DT 9 6.3 5.3 1,2-DIBROMO-3-CHLOROPROPANE Non-DT 10 0/10 11.4 13 11 No - - - - - - 1,2-DIBROMOETHANE Non-DT 10 0/10 5.58 6.3 5.3 No - - - - - -

DT 1 140 140

Non-DT 9 6.3 5.3

1,2-DICHLOROETHANE Non-DT 10 0/10 5.58 6.3 5.3 No - - - - - - 1,2-DICHLOROPROPANE Non-DT 10 0/10 5.58 6.3 5.3 No - - - - - -

DT 1 79 79

Non-DT 9 6.3 5.3

DT 1 7 7

Non-DT 9 6.3 5.3

1,3-DICHLOROPROPANE Non-DT 10 0/10 5.58 6.3 5.3 No - - - - - -

DT 1 53 53

Non-DT 9 6.3 5.3

1-CHLOROHEXANE Non-DT 10 0/10 5.58 6.3 5.3 No - - - - - - 2,2-DICHLOROPROPANE Non-DT 10 0/10 5.58 6.3 5.3 No - - - - - -

DT 1 160 160

Non-DT 9 25 21

DT 1 26 26

Non-DT 9 6.3 5.3

2-HEXANONE Non-DT 10 0/10 22.3 25 21 No - - - - - -

DT 1 3 3

Non-DT 9 6.3 5.3

3B

- -4-CHLOROTOLUENE 1/10 5.26 Yes NA Yes No -

2-CHLOROTOLUENE 1/10 7.56 Yes 1.6E+05 No -

2-BUTANONE 1/10 35.8 Yes 3.2E+07 No -

1,4-DICHLOROBENZENE 1/10 10.26 Yes 3.2E+03 No - -

1,3-DICHLOROBENZENE 1/10 5.66 Yes 6.9E+03 No - -

1,3,5-TRIMETHYLBENZENE 1/10 12.86 Yes 2.1E+03 No - -

1,2-DICHLOROBENZENE 1/10 18.96 Yes 2.8E+04 No - -

1,2,4-TRIMETHYLBENZENE 1/10 54.96 Yes 5.7E+03 No - -

1,2,4-TRICHLOROBENZENE 1/10 7.66 Yes 1.4E+04 No - -

NA Yes No -1,2,3-TRICHLOROBENZENE 1/10 5.8 Yes

CABRERA SERVICES INC. B - 17

Mean Max Min EUs Dist5 UCL95

(ug/kg)

EPC7

(ug/kg) VOCs Detect?1 # of

Samples FOD2 Availability of Toxicity

Value?

Concentration3 (ug/kg) Considered for Risk Screen?

Region

VI PRG

(ug/kg)

Considered for COPC4

Evaluation?

4-METHYL-2-PENTANONE Non-DT 10 0/10 22.3 25 21 No - - - - - -

DT 1 610 610

Non-DT 9 25 21

DT 1 5.2 5.2

Non-DT 9 6.3 5.3

BROMOBENZENE Non-DT 10 0/10 5.58 6.3 5.3 No - - - - - - BROMOCHLOROMETHANE Non-DT 10 0/10 5.58 6.3 5.3 No - - - - - - BROMODICHLOROMETHANE Non-DT 10 0/10 5.58 6.3 5.3 No - - - - - - BROMOFORM Non-DT 10 0/10 5.58 6.3 5.3 No - - - - - - BROMOMETHANE Non-DT 10 0/10 5.58 6.3 5.3 No - - - - - -

DT 1 9.5 9.5

Non-DT 9 6.3 5.3

CARBON TETRACHLORIDE Non-DT 10 0/10 5.58 6.3 5.3 No - - - - - -

DT 1 10 10

Non-DT 9 6.3 5.3 CHLOROETHANE Non-DT 10 0/10 5.58 6.3 5.3 No - - - - - - CHLOROFORM Non-DT 10 0/10 5.58 6.3 5.3 No - - - - - - CHLOROMETHANE Non-DT 10 0/10 5.58 6.3 5.3 No - - - - - - CIS-1,2-DICHLOROETHENE Non-DT 10 0/10 5.58 6.3 5.3 No - - - - - - CIS-1,3-DICHLOROPROPENE Non-DT 10 0/10 5.58 6.3 5.3 No - - - - - - DIBROMOCHLOROMETHANE Non-DT 10 0/10 5.58 6.3 5.3 No - - - - - - DIBROMOMETHANE Non-DT 10 0/10 5.58 6.3 5.3 No - - - - - - DICHLORODIFLUOROMETHANE Non-DT 10 0/10 5.58 6.3 5.3 No - - - - - -

DT 2 16 2.3

Non-DT 8 5.8 5.3

HEXACHLOROBUTADIENE Non-DT 10 0/10 5.58 6.3 5.3 No - - - - - - IODOMETHANE Non-DT 10 0/10 5.58 6.3 5.3 No - - - - - -

DT 1 2.1 2.1

Non-DT 9 6.3 5.3

DT 3 85 3.9

Non-DT 7 5.8 5.3

METHYL TERTIARY BUTYL ETHER Non-DT 10 0/10 5.58 6.3 5.3 No - - - - - - METHYLENE CHLORIDE Non-DT 10 0/10 5.58 6.3 5.3 No - - - - - -

DT 2 12000 7.8

Non-DT 8 5.8 5.3

DT 1 6.7 6.7

Non-DT 9 6.3 5.3

DT 1 2.9 2.9

Non-DT 9 6.3 5.3

3B cont.

N-PROPYLBENZENE 1/10 5.25 Yes 1.4E+04 No - -

N-BUTYLBENZENE 1/10 5.63 Yes 1.4E+04 No - -

NAPHTHALENE 2/10 1205.1 Yes 1.2E+05 No - -

M+P-XYLENE 3/10 13.5 Yes 2.1E+05 No - -

ISOPROPYLBENZENE 1/10 5.17 Yes 3.7E+05 No - -

ETHYLBENZENE 2/10 6.16 Yes 2.3E+05 No - -

CHLOROBENZENE 1/10 5.96 Yes 2.7E+04 No - -

CARBON DISULFIDE 1/10 5.91 Yes 7.2E+05 No - -

BENZENE 1/10 5.48 Yes 6.6E+02 No - -

ACETONE 1/10 80.8 Yes 1.4E+06 No - -

CABRERA SERVICES INC. B - 18

Mean Max Min EUs Dist5 UCL95

(ug/kg)

EPC7

(ug/kg) VOCs Detect?1 # of

Samples FOD2 Availability of Toxicity

Value?

Concentration3 (ug/kg) Considered for Risk Screen?

Region

VI PRG

(ug/kg)

Considered for COPC4

Evaluation?

DT 1 40 40

Non-DT 9 6.3 5.3

DT 1 4.7 4.7

Non-DT 9 6.3 5.3

DT 1 4.1 4.1

Non-DT 9 6.3 5.3 STYRENE Non-DT 10 0/10 5.58 6.3 5.3 No - - - - - - TERT-BUTYLBENZENE Non-DT 10 0/10 5.58 6.3 5.3 No - - - - - - TETRACHLOROETHENE Non-DT 10 0/10 5.58 6.3 5.3 No - - - - - -

DT 3 13 2.1

Non-DT 7 5.8 5.3

TRANS-1,2-DICHLOROETHENE Non-DT 10 0/10 5.58 6.3 5.3 No - - - - - - TRANS-1,3-DICHLOROPROPENE Non-DT 10 0/10 5.58 6.3 5.3 No - - - - - - TRICHLOROETHENE Non-DT 10 0/10 5.58 6.3 5.3 No - - - - - - TRICHLOROFLUOROMETHANE Non-DT 10 0/10 5.58 6.3 5.3 No - - - - - - VINYL ACETATE Non-DT 10 0/10 22.3 25 21 No - - - - - - VINYL CHLORIDE Non-DT 10 0/10 5.58 6.3 5.3 No - - - - - -

3B cont.

TOLUENE 3/10 5.74 Yes 5.2E+05 No - -

SEC-BUTYLBENZENE 1/10 5.37 Yes 1.1E+04 No - -

P-ISOPROPYLTOLUENE 1/10 5.43 Yes NA Yes No -

O-XYLENE 1/10 8.96 Yes 2.8E+05 No - -

3 Max = Maximum; Min = Minimum

2 FOD = Frequency of Detection (i.e., Detected/Total # of Samples)

1 DT = Detected; Non-DT = Non-Detect; NA = Not Available Foot Notes

7 EPC = Exposure point concentration

6 UCL95 = 95% of the upper confidence limit of the mean

5 Dist = Distribution of Sampling Results; N = Normal; L = Lognormal; G =Gamma; X = Non-parametric

4 COPC = Contaminant of Potential Concern

CABRERA SERVICES INC. B - 19

Mean Max Min

DT 1 20 20

Non-DT 11 730 350

1,2-DICHLOROBENZENE Non-DT 12 0/12 398.333 730 350 No - - - - - - 1,3-DICHLOROBENZENE Non-DT 12 0/12 398.333 730 350 Yes

DT 1 21 21

Non-DT 11 730 350

2,3,4,6-TETRACHLOROPHENOL Non-DT 10 0/12 400 730 350 No - - - - - - 2,4,5-TRICHLOROPHENOL Non-DT 12 0/12 495.833 980 350 No - - - - - - 2,4,6-TRICHLOROPHENOL Non-DT 12 0/12 398.333 730 350 No - - - - - - 2,4-DICHLOROPHENOL Non-DT 12 0/12 398.333 730 350 No - - - - - - 2,4-DIMETHYLPHENOL Non-DT 12 0/12 398.333 730 350 No - - - - - - 2,4-DINITROPHENOL Non-DT 12 0/12 830.833 1500 700 No - - - - - - 2,4-DINITROTOLUENE Non-DT 12 0/12 398.333 730 350 No - - - - - - 2,6-DINITROTOLUENE Non-DT 12 0/12 398.333 730 350 No - - - - - - 2-CHLORONAPHTHALENE Non-DT 12 0/12 398.333 730 350 No - - - - - - 2-CHLOROPHENOL Non-DT 12 0/12 398.333 730 350 No - - - - - -

DT 3 2000 320

Non-DT 7 370 350

2-METHYLPHENOL Non-DT 12 0/12 398.333 730 350 No - - - - - - 2-NITROANILINE Non-DT 12 0/12 830.833 1500 700 No - - - - - - 2-NITROPHENOL Non-DT 12 0/12 398.333 730 350 No - - - - - -

DT 1 140 140

Non-DT 11 780 350

3+4-METHYLPHENOL Non-DT 12 0/12 398.333 730 350 No - - - - - - 3-NITROANILINE Non-DT 12 0/12 830.833 1500 700 No - - - - - - 4,6-DINITRO-2-METHYLPHENOL Non-DT 12 0/12 830.833 1500 700 No - - - - - - 4-BROMOPHENYL PHENYL ETHER Non-DT 12 0/12 398.333 730 350 No - - - - - - 4-CHLORO-3-METHYLPHENOL Non-DT 12 0/12 398.333 730 350 No - - - - - - 4-CHLOROANILINE Non-DT 12 0/12 398.333 730 350 No - - - - - - 4-CHLOROPHENYL PHENYL ETHER Non-DT 12 0/12 398.333 730 350 No - - - - - - 4-NITROANILINE Non-DT 12 0/12 830.833 1500 700 No - - - - - - 4-NITROPHENOL Non-DT 12 0/12 830.833 1500 700 No - - - - - -

DT 2 85 55

Non-DT 10 730 350

DT 1 110 110

Non-DT 11 730 350

ANILINE Non-DT 10 0/10 400 730 350 No - - - - - -

ACENAPHTHYLENE 1/12 375 Yes NA Yes No - -

ACENAPHTHENE 2/12 347.5 Yes 3.70E+06 No - - -

3,3'-DICHLOROBENZIDINE 1/12 443.333 Yes 1.10E+03 No - - -

2-METHYLNAPHTHALENE 3/10 552 Yes NA Yes No - -

1,4-DICHLOROBENZENE 1/12 367.583 Yes 3.20E+03 No - - -

EPC7

(ug/kg)

1,2,4-TRICHLOROBENZENE 1/12 367.5 Yes 1.40E+04 No - -

Region VI

PRG

(ug/kg)

Considered for

COPC4

Evaluation?

Availability of Toxicity Value? Dist5 UCL95

(ug/kg)

TABLE B-1-4: IDENTIFICATION OF SURFACE SOIL COPCS AND DETERMINATION

OF EXPOSURE POINT CONCENTRATION OF EACH COPC

EUs SVOCs Detect?1 # of Samples FOD2

Concentration3 (ug/kg) Considered for Risk Screen?

CABRERA SERVICES INC. B - 20

Mean Max Min

EPC7

(ug/kg)

Region VI

PRG

(ug/kg)

Considered for

COPC4

Evaluation?

Availability of Toxicity Value? Dist5 UCL95

(ug/kg) EUs SVOCs Detect?1 # of

Samples FOD2 Concentration3 (ug/kg) Considered for

Risk Screen?

DT 2 450 450

Non-DT 10 730 350

AZOBENZENE Non-DT 10 0/10 400 730 350 No - - - - - -

DT 7 780 100

Non-DT 5 730 350

DT 8 320 76

Non-DT 4 730 350

DT 8 820 140

Non-DT 4 730 350

DT 6 500 81

Non-DT 6 730 350

DT 5 350 86

Non-DT 7 730 350 BENZOIC ACID Non-DT 10 0/10 1990 3700 1700 No - - - - - - BENZYL ALCOHOL Non-DT 10 0/10 400 730 350 No - - - - - - BIS(2-CHLOROETHOXY)METHANE Non-DT 12 0/12 398.333 730 350 No - - - - - - BIS(2-CHLOROETHYL)ETHER Non-DT 12 0/12 398.333 730 350 No - - - - - - BIS(2-CHLOROISOPROPYL)ETHER Non-DT 12 0/12 398.333 730 350 No - - - - - -

DT 5 430 72

Non-DT 7 730 350

BUTYL BENZYL PHTHALATE Non-DT 12 0/12 398.333 730 350 No - - - - - -

DT 1 180 180

Non-DT 11 730 350

DT 8 92000 100

Non-DT 4 730 350

DT 2 150 120

Non-DT 10 730 350

DT 2 120 96

Non-DT 10 730 350

DT 1 33 33

Non-DT 11 730 350 DIMETHYL PHTHALATE Non-DT 12 0/12 398.333 730 350 No - - - - - -

DT 2 150 23

Non-DT 10 730 350

DI-N-OCTYL PHTHALATE Non-DT 12 0/12 398.333 730 350 No - - - - - -

DT 8 620 73

Non-DT 4 730 350

DT 3 190 110

Non-DT 9 730 350 HEXACHLOROBENZENE Non-DT 12 0/12 385 730 310 No - - - - - -

-FLUORENE 3/12 344.167 Yes 2.60E+05 No - - -

FLUORANTHENE 8/12 372.75 Yes 2.30E+05 No - -

DI-N-BUTYL PHTHALATE 2/12 349.417 Yes 6.10E+06 No - - -

DIETHYL PHTHALATE 1/12 368.583 Yes 4.90E+06 No - - -

DIBENZOFURAN 2/12 352.167 Yes 1.50E+04 No - - -

85801

DIBENZO(A,H)ANTHRACENE 2/12 356.667 Yes 1.50E+01 Yes Yes X 150

CHRYSENE 8/12 8159.17 Yes 1.50E+04 Yes Yes X 85801

CARBAZOLE 1/12 380.833 Yes 2.40E+04 No - - -

BIS(2-ETHYLHEXYL)PHTHALATE 5/12 342.667 Yes 3.50E+04 No - - -

BENZO(K)FLUORANTHENE 5/12 323.25 Yes 1.50E+03 No - - -

387.9

BENZO(G,H,I)PERYLENE 6/12 316.583 Yes NA Yes No - -

234.7

BENZO(B)FLUORANTHENE 8/12 369.167 Yes 1.50E+02 Yes Yes X 387.9

368.5

BENZO(A)PYRENE 8/12 273 Yes 1.50E+01 Yes Yes X 234.7

BENZO(A)ANTHRACENE 7/12 360.833 Yes 1.50E+02 Yes Yes X 368.5

ANTHRACENE 2/12 409.167 Yes 2.20E+06 No - - -1 cont.

CABRERA SERVICES INC. B - 21

Mean Max Min

EPC7

(ug/kg)

Region VI

PRG

(ug/kg)

Considered for

COPC4

Evaluation?

Availability of Toxicity Value? Dist5 UCL95

(ug/kg) EUs SVOCs Detect?1 # of

Samples FOD2 Concentration3 (ug/kg) Considered for

Risk Screen?

HEXACHLOROBUTADIENE Non-DT 12 0/12 398.333 730 350 No - - - - - - HEXACHLOROCYCLOPENTADIENE Non-DT 12 0/12 398.333 730 350 No - - - - - - HEXACHLOROETHANE Non-DT 12 0/12 398.333 730 350 No - - - - - -

DT 5 480 83

Non-DT 7 730 350

ISOPHORONE Non-DT 12 0/12 398.333 730 350 No - - - - - -

DT 8 2100 78

Non-DT 4 390 350 NITROBENZENE Non-DT 12 0/12 398.333 730 350 No - - - - - - N-NITROSODIMETHYLAMINE Non-DT 10 0/10 400 730 350 No - - - - - - N-NITROSO-DI-N-PROPYLAMINE Non-DT 12 0/12 398.333 730 350 No - - - - - - N-NITROSODIPHENYLAMINE Non-DT 12 0/12 398.333 730 350 No - - - - - - PENTACHLOROPHENOL Non-DT 12 0/12 830.833 1500 700 No - - - - - -

DT 6 920 72

Non-DT 6 730 350

PHENOL Non-DT 12 0/12 398.333 730 350 No - - - - - -

DT 8 1100 72

Non-DT 4 730 350 PYRIDINE Non-DT 10 0/10 400 730 350 No - - - - - -

DT 2 280 190

Non-DT 8 410 340

1,2-DICHLOROBENZENE Non-DT 10 0/10 382 440 340 No - - - - - - 1,3-DICHLOROBENZENE Non-DT 10 0/10 382 440 340 No - - - - - - 1,4-DICHLOROBENZENE Non-DT 10 0/10 382 440 340 No - - - - - - 2,3,4,6-TETRACHLOROPHENOL Non-DT 10 0/10 382 440 340 No - - - - - - 2,4,5-TRICHLOROPHENOL Non-DT 10 0/10 382 440 340 No - - - - - - 2,4,6-TRICHLOROPHENOL Non-DT 10 0/10 382 440 340 No - - - - - - 2,4-DICHLOROPHENOL Non-DT 10 0/10 382 440 340 No - - - - - - 2,4-DIMETHYLPHENOL Non-DT 10 0/10 382 440 340 No - - - - - - 2,4-DINITROPHENOL Non-DT 10 0/10 765 880 680 No - - - - - -

DT 1 480 480

Non-DT 9 440 340

2,6-DINITROTOLUENE Non-DT 10 0/10 382 440 340 No - - - - - - 2-CHLORONAPHTHALENE Non-DT 10 0/10 382 440 340 No - - - - - - 2-CHLOROPHENOL Non-DT 10 0/10 382 440 340 No - - - - - -

DT 3 2800 130

Non-DT 7 440 340

2-METHYLPHENOL Non-DT 10 0/10 382 440 340 No - - - - - - 2-NITROANILINE Non-DT 10 0/10 765 880 680 No - - - - - - 2-NITROPHENOL Non-DT 10 0/10 382 440 340 No - - - - - -

2-METHYLNAPHTHALENE 3/10 581 Yes NA Yes No -

2,4-DINITROTOLUENE 1/10 392 Yes 1.20E+04 No - -

1.40E+04 No - -

PYRENE 8/12 424.333 Yes 2.30E+05 No - - -

PHENANTHRENE 6/12 415.667 Yes NA Yes No - -

246.3

NAPHTHALENE 8/12 602.667 Yes 1.20E+04 No - - -

INDENO(1,2,3-CD)PYRENE 5/12 327.25 Yes 1.50E+02 Yes Yes X 246.3

1,2,4-TRICHLOROBENZENE 2/10 344

1 cont.

2A Yes

CABRERA SERVICES INC. B - 22

Mean Max Min

EPC7

(ug/kg)

Region VI

PRG

(ug/kg)

Considered for

COPC4

Evaluation?

Availability of Toxicity Value? Dist5 UCL95

(ug/kg) EUs SVOCs Detect?1 # of

Samples FOD2 Concentration3 (ug/kg) Considered for

Risk Screen?

3,3'-DICHLOROBENZIDINE Non-DT 10 0/10 382 440 340 No - - - - - - 3+4-METHYLPHENOL Non-DT 10 0/10 382 440 340 No - - - - - - 3-NITROANILINE Non-DT 10 0/10 765 880 680 No - - - - - - 4,6-DINITRO-2-METHYLPHENOL Non-DT 10 0/10 765 880 680 No - - - - - - 4-BROMOPHENYL PHENYL ETHER Non-DT 10 0/10 382 440 340 No - - - - - - 4-CHLORO-3-METHYLPHENOL Non-DT 10 0/10 382 440 340 No - - - - - - 4-CHLOROANILINE Non-DT 10 0/10 382 440 340 No - - - - - - 4-CHLOROPHENYL PHENYL ETHER Non-DT 10 0/10 382 440 340 No - - - - - - 4-NITROANILINE Non-DT 10 0/10 765 880 680 No - - - - - - 4-NITROPHENOL Non-DT 10 0/10 765 880 680 No - - - - - -

DT 1 280 280

Non-DT 9 440 340

ACENAPHTHYLENE Non-DT 10 0/10 382 440 340 No - - - - - - ANILINE Non-DT 10 0/10 382 440 340 No - - - - - -

DT 2 2400 780

Non-DT 8 440 340

AZOBENZENE Non-DT 10 0/10 382 440 340 No - - - - - -

DT 6 2500 76

Non-DT 4 390 360

DT 5 1800 80

Non-DT 5 390 350

DT 6 4000 98

Non-DT 4 390 360

DT 4 1400 100

Non-DT 6 390 340

DT 5 1500 71

Non-DT 5 390 350 BENZOIC ACID Non-DT 10 0/10 1930 2200 1700 No - - - - - - BENZYL ALCOHOL Non-DT 10 0/10 382 440 340 No - - - - - - BIS(2-CHLOROETHOXY)METHANE Non-DT 10 0/10 382 440 340 No - - - - - - BIS(2-CHLOROETHYL)ETHER Non-DT 10 0/10 382 440 340 No - - - - - - BIS(2-CHLOROISOPROPYL)ETHER Non-DT 10 0/10 382 440 340 No - - - - - -

DT 2 140 98

Non-DT 8 410 340

BUTYL BENZYL PHTHALATE Non-DT 10 0/10 382 440 340 No - - - - - -

DT 1 680 680

Non-DT 9 440 340

DT 6 3300 75

Non-DT 4…