January 20, 1992 M

Wehran Engineering Corporation666 Ea;: Va.r. 5:ree:PC Bex 2006

January 20, 1992 M da.etown New York -Q94C' , Tei 914-343-0660

Fax 914-343-1946

Ms. Alison BarryUnited States Environmental Protection Agency26 Federal Plaza-Room 759New York, NY 10278

Re: Operable Unit 2 Feasibility StudyKin-Buc Landfill Superfund Site, Edison, New JerseyAdministrative Order No. II-CERCLA-00114 (Order)WE Project No. 09406.HG

Dear Ms. Barry:

Wehran Engineering Corporation (Wehran) has prepared this submittal on behalfof Respondents to Administrative Order Index No. II-CERCLA-00114 in response toAgency correspondence dated December 20, 1991 regarding the U.S. EnvironmentalProtection Agency's (EPA) establishment of a PCB cleanup level of 5 parts per million(ppm) for contaminated wetland sediments at the Kin-Buc Landfill Site, Operable Unit 2.As requested, Wehran has normalized all sediment PCB data from the Edmonds Creekmarsh and Pool C connecting channel areas to the fraction of organic carbon containedin the sediment at that data point. In addition, the normalized data have been mappedfor comparison with contour intervals representing the lower, mean, and upperSediment Quality Criteria (SQCs) for PCBs in freshwater ecosystems using EPA's InterimEquilibrium Partitioning Method (EP) in accordance with your request. The results ofthis effort are attached. A brief description of these results is presented below.

Table 1 summarizes the available total PCB and total organic carbon (TOC) datafor the Edmonds Creek/Connecting Channel wetland sediments derived from theOperable Unit 2 investigations, normalized PCB data (expressed as ug PCB/g organiccarbon) for each sampling station, and calculated freshwater SQC equivalents for eachsampling station. Calculated SQC equivalents include the location-specific mean and95 percent (lower and upper) confidence intervals for comparison to un-normalized PCBdata. SQCs used to derive these location-specific equivalents were obtained from EPA's"Interim Sediment Criteria Values for Non-Polar Hydrophobia Organic Compounds" andare listed on Table 2. «a

In addition, Wehran has calculated location-specific saltwater SQC equivalents for °EPA's consideration (Table 1) because the wetlands in question also support saltwater 0aquatic life (see Operable Unit 2 RI/FS, Section 2.4). Salinity in the Raritan River at othis location during high tide intervals ranged from 3.25 to 17.4 parts perthousand (ppt) during eight weeks of water quality sampling conducted by Wehran in oOctober - November 1991. These data suggest that the site would be classified as a £

10.1/92.09406 HG

Ms. Alison BarryJanuary 20, 1992Page 2

saltwater system in accordance with NJAC 7:9-4.4. Further, the toxicological data baseused to derive the freshwater SQC may not be representative of the resident biologicalcommunity in Edmonds Creek marsh system, although it is recognized that the saltwatertoxicological data base may not be entirely representative either. As such, bothfreshwater and saltwater SQCs are offered for consideration and comparison with thesuggested PCB cleanup criterion of 5 ppm.

Seven figures have been enclosed to contour un-normalized and normalized PCBdata and criteria. These include the approximate distribution of sediments exceeding5 ppm PCBs (Figure 1), normalized PCB data expressed as ug PCB/g organic carbon(Figure 2), normalized PCB data contoured to show areas exceeding the upper, mean,and lower SQCs for freshwater (Figures 3, 4, and 5) and areas exceeding the upper,mean, and lower SQCs for saltwater (Figures 6, 7, and 8). To interpret these figures,contours derived for un-normalized PCBs greater than 5 ppm (Figure 1) should becompared with contours derived for normalized PCBs in excess of freshwater andsaltwater SQCs (Figures 3 through 8) to determine which SQC limits are best satisfiedby 5 ppm total (un-normalized) PCBs. These figures show that the un-normalized5 ppm contours (Figure 1) exihibit adequate compliance with the upper freshwaterSQCs (Figure 3) and the upper saltwater SQCs (Figure 6) .The suggested PCB cleanupcriterion of 5 ppm will allow for consideration of remedial alternatives for the EdmondsCreek marsh system that are largely confined to existing stream channels and theirassociated intertidal shorelines or borders (as outlined in Figure 1) while preserving themajority of the vegetated wetlands within the study area.

Respondents reserve judgment as to the appropriateness of the 5 ppm criterion forPCBs as the sole basis for considering remedial action until EPA's EndangermentAssessment is made available for our review and incorporation into the Feasibility Study.For example, Respondents would consider the potential impact (positive or negative)of each remedial alternative on the existing uses of the wetland, and the anticipatedreduction of exposure via critical pathways associated with each alternative, as possiblemodifiers to the final areas selected for remediation. Existing uses and critical exposurepathways should be defined in the Endangerment Assessment and considered in theFeasibility Study.

We would welcome the opportunity to discuss these issues with Agencyrepresentatives at your earliest convenience. In the interim, we will assume that thecleanup level of 5 ppm PCBs will be the final action level for the Operable Unit 2wetlands, pursuant to your letter of December 20, 1991. In order to proceed, we must ^incorporate the 5 ppm action level for PCBs into the ongoing Feasibility Study. We will couse this action level to determine the extent of affected acreage and to finalize remedialalternatives. However, completion of this effort is dependent on receipt of any oadditional information regarding remedial action goals and objectives. We believe that °these goals and objectives should be derived, at least in part, from the EndangermentAssessment. ro

ilk00

10.1/92.09406.HQ

Ms. Alison BarryJanuary 20, 1992PageS

If you should have any questions regarding the enclosed information, please donot hesitate to contact us. We would encourage further dialogue between the Agency'sand Respondents' technical representatives regarding these and any other proposedaction levels prior to their final adoption and throughout the Feasibility Study process.

Very truly yours,

WEHRAN ENGINEERING CORPORATION

Kevin M. Burger, C.E.P.Kin-Buc-Facility Coordinator

KMB/mefcc: R. Sundstrom, P.E.

S. Jaffe, Esq.R. KarrD. Rothberg, Esq.M. TlcachR. Basso, USEPAI. Curtis, NJDEPR. Dewling, Ph.D.R. O'Hara

03o

oo

oto*•VO

10.1/92.09406.HG

Page 1 of 16

Table 1KIN-BUC OPERABLE UNIT 2 RI/FS

SUMMARY OF SEDIMENT PCB AND ORGANICCARBON DATA, NORMALIZED DATA AND CRITERIA

LOCATION

TOTAL PCBs(ug/g)Total Organic Carbon (%)'NORMALIZED PCBs (ug/gOC)* *

LOCATION-SPECIFIC FRESHWATERCRITERIA EQUIVALENTS***

Lower (ug PCBs/g sediment)Mean (ug PCBs/g sediment)Upper (ug PCBs/g sediment)

LOCATION-SPECIFIC SALTWATERCRITERIA EQUIVALENTS***


M12C

U8.00%

U

0.311.68.0

0.663.317

M13C

3.517.32%

48

0.281.47.3

0.613.116

M12S

0.846.73%

12

0.261.36.7

0.562.814

M12N

2.876.95%

41

0.271.46.9

0.582.915

M13N

1.927.85%

24

0.301.57.8

0.653.317

M13S

0.778.00%

10

0.311.68.0

0.663.317

MIC

U6.96%

U

0.271.47.0

0.582.915

M2C

U8.00%

U

0.311.68.0

0.663.317

M3C

U7.18%

U

0.281.47.2

0.603.015

M1S

U8.00%

U

0.311.68.0

0.663.317

OSZO tOO

Notes* - Total Organic Carbon (OC) values reported as >8%

are considered to be 8%' * - Total PCBs (ug/g) x Fraction OC - Normalized PCB concentration

(compare with established freshwater or saltwater criteria shown in Table 2)*** - Criterion (ug PCBs/gOC) x Fraction OC = Total PCB equivalent

(compare with total PCBs at each location)

Source: All data from Draft Final Remedial InvestigationReport for Kin-Buc Landfill Operable Unit 2 (October 1990,revised May 1991) and Draft Supplemental SedimentSampling Program for the Edmonds Creek/Marsh Area,Kin-Buc Landfill Site Operable Unit 2 (April 1991)

Units: ug/g » mg/kg = parts per million (ppm)

Page 2 of 16



LOCATION

TOTAL PCBs (ug/g)Total Organic Carbon (%)'NORMALIZED PCBs (ugfgOC)* *

LOCATION-SPECIFIC FRESHWATERCRITERIA EQUIVALENTS* * *


LOCATION-SPECIFIC SALTWATERCRITERIA EQUIVALENTS* * *


M1N

U8.00%

U

0.311.68.0

0.663.317

M2S

1.638.00%

20

0.311.68.0

0.663.317

M2N

0.690.0122%

5656

0.00050.0020.01

0.0010.010.03

M3N

1.345.02%

27

0.191.05.0

0.422.111

M3S

16.30%

16

0.241.26.3

0.522.613

M4C

0.948.00%

12

0.311.68.0

0.663.317

M5C

4.68.00%

58

0.311.68.0

0.663.317

M6C

U6.96%

U

0.271.47.0

0.582.915

M4N

U8.00%

U

0.311.68.0

0.663.317

M4S

0.898.00%

11

0.311.68.0

0.663.317

T S Z O TOO


are considered to be 8%* * - Total PCBs (ug/g) x Fraction OC - Normalized PCB concentration

(compare with established freshwater or saltwater criteria shown in Table 2)* * * - Criterion (ug PCBs/gOC) x Fraction OC = Total PCB equivalent


Source: All data from Draft Final Remedial InvestigationReport for Kin-Buc Landfill Operable Unit 2 (October 1990.revised May 1991) and Draft Supplemental SedimentSampling Program for the Edmonds Creek/Marsh Area,Kin-Buc Landfill Site Operable Unit 2 (April 1991)

Units: ug/g - mg/kg = parts per million (ppm)

Page 3 of 16



LOCATION

TOTAL PCBs (ug/g)Total Organic Carbon (%)*NORMALIZED PCBs (ug/gOC)**





MSN

0.848.00%

11

0.311.68.0

0.663.317

M5S

1.168.00%

15

0.311.68.0

0.663.317

M6N

2.978.00%

37

0.311.68.0

0.663.317

M6S

1.118.00%

14

0.311.68.0

0.663.317

M7C

U0.231%

U

0.010

0.23

0.020.100.49

M8C

124.76%

252

0.180.934.8

0.392.010

M9C

1.498.00%

19

0.311.68.0

0.663.317

M10C

11.38.00%

141

0.311.68.0

0.663.317

M11C

U0.372%

U

0.010.070.37

0.030.160.80

M7N

3.468.00%

43

0.311.68.0

0.663.317

2SZO TOO

Notes• - Total Organic Carbon (OC) values reported as >8%


(compare with established freshwater or saltwater criteria shown in Table 2)* * * - Criterion (ug PCBs/gOC) x Fraction OC - Total PCB equivalent




Page 4 of 16


SUMMARY OF SEDIMENT PCB AND ORGANICCARBON DATA. NORMAUZED DATA AND CRITERIA

LOCATION

TOTAL PCBs(ug/g)Total Organic Carbon (%)'NORMALIZED PCBs (ug/gOC)**


Lower (ug PCBs/g sedfenent)Mean (ug PCBs/g sediment)Upper (ug PCBs/g sedknent)



M7S

247.04%

341

0.271.47.0

0.582.915

MSN

4.86.46%

74

0.251.36.5

0.542.714

M8S

0.588.00%

7.3

0.311.68.0

0.663.317

MSN

0.338.00%

4.1

0.311.68.0

0.663.317

M9S

2.18.00%

26

0.311.68.0

0.663.317

M10N

U8.00%

U

0.311.68.0

0.663.317

M10S

816.60%1227

0.261.36.6

0.552.814

M11N

U0.25%

U

0.010.050.25

0.020.100.54

M11S

U0.282%

U

0.010.050.28

0.020.120.60

M21C

17.31.88%

920

0.070.37

1.9

0.160.794.0

£520 TOO 09)1

Notes• - Total Organic Carbon (OC) values reported as >8%

are considered to be 8%** - Total PCBs (ug/g) x Fraction OC - Normalized PCB concentration




Units: ug/g = mg/kg - parts per million (ppm)

Page 5 of 16


SUMMARY OF SEDIMENT PCS AND ORGANICCARBON DATA. NORMALIZED DATA AND CRITERIA

LOCATION

TOTAL PC Bs(ug/g)Total Organic Cartoon (%)*NORMALIZED PCBs (ug/gOC)" *


Lower (ug PCBs/g sedknent)Mean (ug PCBa/g sediment)Upper (ug PCBs/g sediment)


Lower (ug PCBs/g sedtanent)Mean (ug PCBs/g sediment)Upper (ug PCBs/g sediment)

M22C

0.442.98%

15

0.120.583.0

0.251.26.4

M23C

0.318.00%

3.9

0.311.68.0

0.663.317

M15C

4.362.54%

172

0.100.502.5

0.211.15.4

M16C

1.713.33%

51

0.130.65

3.3

0.281.47.1

M17C

29.73.44%

863

0.130.673.4

0.291.47.4

M18C

U3.52%

U

0.140.693.5

0.291.57.5

M19C

0.512.80%

18

0.110.552.8

0.231.26.0

M20C

2.544.35%

58

0.170.854.3

0.361.89.3

M21E

2.885.70%

51

0.221.15.7

0.472.412

M21W

3.485.00%

70

0.191.05.0

0.412.111

too



(compare with established freshwater or saltwater criteria shown in Table 2)* * * - Criterion (ug PCBs/gOC) x Fraction OC « Total PCB equivalent


Source: All data from Draft Final Remedial InvestigationReport for Kin-Buc Landfill Operable Unit 2 (October 1990,revised May 1991) and Draft Supplemental SedimentSampling Program for the Edmonds Creek/Marsh Area.Kin-Buc Landfill Site Operable Unit 2 (April 1991)

Units: ug/g = mg/kg - parts per million (pom)

Page 6 of 16

Table 1KIN-BUG OPERABLE UNIT 2 RI/FS


LOCATION



Lower (ug PCBs/g sediment)Mean (ug PCBs/g sedfenent)Upper (ug PCBs/g sedknent)


Lower (ug PCBs/g sediment)Mean (ug PCBs/g sediment)Upper (ug PCBs/g sedment)

M22E

2.56.52%

38

0.251.36.5

0.542.714

M22W

0.246.91%

3.5

0.271.36.9

0.572.915

M23E

1.77.34%

23

0.281.47.3

0.613.116

M23W

1.426.02%

24

0.231.26.0

0.502.513

M15E

4.75.56%

85

0.221.15.6

0.462.312

M15W

1068.00%1325

0.311.68.0

0.663.317

M16E

1.364.20%

32

0.160.824.2

0.351.89.0

M16W

9.94.64%

213

0.180.904.6

0.381.910

M17E

4.73.32%

142

0.130.653.3

0.281.47.1

M17W

1.35.67%

23

0.221.15.7

0.472.412

SS20 TOO






Units: ug/g - mg/kg « parts per million (ppm)

Page 7 of 16



LOCATION

TOTAL PCBs (ug/g)Total Organic Carbon (%)*NORMALIZED PCBs (ug/gOQ* *

LOCATION-SPECIFIC FRESHWATERCRITERIA EQUIVALENTS'"


LOCATION-SPECIFIC SALTWATERCRITERIA EQUIVALENTS* • •


M18E

1.556.04%

26

0.231.26.0

0.502.513

M18W

4.25.82%

72

0.231.15.8

0.482.412

M19E

0.435.48%

7.8

0.211.15.5

0.452.312

M19W

5.33.OO%

145

0.140.713.7

0.301.57.8

M20E

0.544.80%

11

0.190.944.8

0.402.010

M20W

0.291.76%

16

0.070.34

1.8

0.150.743.8

SD-6

1.91.86%

102

0.070.36

1.9

0.150.784.0

SD-7

U2.30%

U

0.090.45

2.3

0.190.964.9

SD-8

U2.16%

U

0.080.42

2.2

0.180.904.6

SD-9

U0.895%

U

0.030.170.89

0.070.37

1.9

9SZO TOO


are considered to be 8%** - Total PCBs (ug/g) x Fraction OC » Normalized PCB concentration

(compare with established freshwater or saltwater criteria shown in Table 2)* • * - Criterion (ug PCBs/gOC) x Fraction OC « Total PCB equivalent



Units: ug/g = mg/kg * parts per million (ppm)

Page 8 of 16



LOCATION

TOTAL PCBs (ug/g)Total Organic Carbon (%)*NORMALIZED PCBs (ug/gOC)* *

LOCATION-SPECIFIC FRESHWATERCRITERIA EQUIVALENTS* * •



Lower (ug PCBs/g sediment)Mean (ug PCBs/g sediment)Upper (ug PCBs/g sedwnent)

SD-10

U0.634%

U

0.020.120.63

0.050.27

1.4

SD-11

U0.386%

U

0.010.080.39

0.030.160.83

RR1

U8.00%

U

0.311.68.0

0.663.317

RR3

1.273.94%

32

0.150.773.9

0.331.68.4

RR4

U2.02%

U

0.080.392.0

0.170.844.3

RR5

U2.22%

U

0.090.432.2

0.180.934.8

RR6

U2.02%

U

0.080.392.0

0.170.844.3

RR7

3.31.95%

169

0.080.38

1.9

0.160.824.2

RR8

0.572.53%

23

0.100.49

2.5

0.211.065.4

M24C

4.10.88%

466

0.030.170.88

0.070.37

1.9

TOO 09)1

Notes" - Total Organic Carbon (OC) values reported as >8%





Units: ug/g - mg/kg - parts per million (ppm)

Page 9 of 16


SUMMARY OF SEDIMENT PCB AND ORGANICCARBON DATA. NORMALIZED DATA AND CRITERIA

LOCATION

TOTAL PCBs(ug/g)Total Organic Carbon (%)'NORMALIZED PCBs (ug/gOQ* *


Lower (ug PCBs/g sediment)Mean (ug PCBs/g sedknent)Upper (ug PCBs/g sedknent)


Lower (ug PCBs/g sedknent)Mean (ug PCBs/g sedknent)Upper (ug PCBs/g sediment)

M24N

288.00%

350

0.311.68.0

0.663.317

M24S

2.44.08%

59

0.160.804.1

0.341.78.7

PC-01

2.27.14%

31

0.281.47.1

0.593.015

PC-02

2908.00%3625

0.311.68.0

0.663.317

PC-03

12.48.00%

155

0.311.68.0

0.663.317

PC-04

5602.80%

20000

0.110.552.8

0.231.26.0

PC-05

3.428.00%

43

0.311.68.0

0.663.317

PC-06

7308.00%9125

0.311.68.0

0.663.317

PC-07

11.18.00%

139

0.311.68.0

0.663.317

PC-08

2.&"8.00%

28

0.311.68.0

0.663.317

8S20 TOO D9)I


are considered to be 8%* * - Total PCBs (ug/g) x Fraction OC * Normalized PCB concentration





Page 10 of 16



LOCATION

TOTAL PCBs (ug/g)Total Organic Carbon (%)*NORMALIZED PCBs (ug/gOQ* *

LOCATION-SPECIFIC FRESHWATERCRITERIA EQUIVALENTS"*




PC-09

1.658.00%

21

0.311.68.0

0.663.317

PC-10

1008.00%1250

0.311.68.0

0.663.317

SO- 12

0.225.08%

4.3

0.201.05.1

0.422.111

SD-13

0.91.24%

73

0.050.24

1.2

0.100.522.7

M25C

3003.98%7538

0.150.784.0

0.331.78.5

CD1

U3.26%

U

0.130.643.3

0.271.47.0

CD2

U3.36%

U

0.130.663.4

0.281.47.2

CD3

U3.32%

U

0.130.653.3

0.281.47.1

UD1

U1.24%

U

UD2

U1.84%

U

0.05 0.070.241.2

0.100.522.7

0.361.8

0.150.77

3.9

TOO

Notes" - Total Organic Carbon (OC) values reported as >8%

are considered to be 8%*" - Total PCBs (ug/g) x Fraction OC « Normalized PCB concentration

(compare with established freshwater or saltwater criteria shown in Table 2)*** - Criterion (ug PCBs/gOC) x Fraction OC - Total PCB equivalent




Page 11 of 16



LOCATION



Lower (ug PCBs/g sedknent)Mean (ug PCBa/g sedwnent)Upper (ug PCBa/g sedknent)

LOCATION-SPECIFIC SALTWATERCRITERIA EQUIVALENTS* **

Lower (ug PCBa/g sediment)Mean (ug PCBa/g sediment)Upper (ug PCBs/g sediment)

SD-1

U2.70%

U

0.100.532.7

0.221.15.8

SD-2

U2.81%

U

0.110.552.8

0.231.26.0

SD-3

U0.251%

U

0.010.050.25

0.020.100.5

SD-4

U0.231%

U

0.010.050.23

0.020.100.49

SD-5

0.0962.66%

3.6

0.100.522.7

0.221.15.7

RR9

U4.55%

U

0.180.894.5

0.381.910

RR10

U5.06%

U

0.201.05.1

0.422.111

SD-1-1

0.138.00%

1.6

0.311.68.0

0.663.317

SD-1 -2

0.278.00%

3.4

0.311.68.0

0.663.317

SD-1 -3

U8.00%

U

0.311.68.0

0.663.317

0920 TOO


are considered to be 8%** - Total PCBs (ug/g) x Fraction OC - Normalized PCB concentration




Units: ug/g « mg/kg * parts per million (pom)

Page 12 of 16



LOCATION

TOTAL RGBs (ug/g)Total Organic Carton (%)*NORMALIZED PCBs (ug/gOQ* *

LOCATION-SPECIFIC FRESHWATERCRITERIA EQUIVALENTS* **

Lower (ug PCBs/g sediment)Mean (ug PCBs/g sedknent)Upper (ug PCBs/g sediment)

LOCATION-SPECIFIC SALTWATERCRITERIA EQUIVALENTS' "

Lower (ug PCBs/g sedknent)Mean (ug PCBs/g sedwnent)Upper (ug PCBs/g sediment)

SD-1-4

0.258.00%

3.1

0.311.68.0

0.663.317

SO- 1-5

0.298.00%

3.6

0.311.68.0

0.663.317

SD-1-6

0.24.94%

4.0

0.191.04.9

0.412.111

SD-1-7

U8.00%

U

0.311.68.0

0.663.317

SD-1-8

0.375.995%

6.2

0.231.26.0

0.502.513

SD-1-9

0.438.00%

5.4

0.311.68.0

0.663.317

SD-1-10

0.28.00%

2.5

0.311.68.0

0.663.317

SD-2A-1

0.378.00%

4.6

0.311.68.0

0.663.317

SD-2A-2

0.768.00%

10

0.311.68.0

0.663.317

TOO


are considered to be 8%"* - Total PCBs (ug/g) x Fraction OC * Normalized PCB concentration

(compare with established freshwater or saltwater criteria shown in Table 2)* * * - Criterion (ug PCBs/gOC) x Fraction OC = Total PCB equivalent




Page 13 of 16



LOCATION

TOTAL PC Bs(ug/g)Total Organic Carbon (%)*NORMALIZED PCBs (ug/gOC)"

LOCATION-SPECIFIC FRESHWATERCRITERIA EQUIVALENTS* *'

Lower (ug PCBs/g sediment)Mean (ug PCBs/g seolment)Upper (ug PCBs/g sediment)


Lower (ug PCBs/g seolment)Mean (ug PCBs/g seolment)Upper (ug PCBs/g sediment)

SD-2A-3

0.328.00%

4.0

0.311.68.0

0.663.317

SD-2A-4

0.418.00%

5.1

0.311.68.0

0.663.317

SD-2A-5

0.728.00%

9.0

0.311.68.0

0.663.317

SD-2A-6

0.248.00%

3.0

0.311.68.0

0.663.317

SD-2A-7

0.286.915%

4.0

0.271.36.9

0.572.915

SO-2A-8

0.357.656%

4.6

0.301.57.6

0.633.216

SO-2A-9

0.578.00%

7.1

0.311.68.0

0.663.317

A-9DUP

2.198.00%

27

0.311.68.0

0.663.317

SD-2B-1

0.0448.00%

0.6

0.311.68.0

0.663.317

2920 TOO D3H


are considered to be 8%* * - Total PCBs (ug/g) x Fraction OC * Normalized PCB concentration




Units: ug/g * mg/kg • parts per million (ppm)

Page 14 of 16



LOCATION


LOCATION-SPECIFIC FRESHWATERCRITERIA EQUIVALENTS* * "




SO-2B-2

1.588.00%

20

0.311.68.0

0.663.317

SO-2B-3

0.346.65%

5.1

0.261.36.6

0.552.814

SD-2B-4

2.78.00%

34

0.311.68.0

0.663.317

SD-2B-5

0.088.00%

1.0

0.311.68.0

0.663.317

SD-2B-6

0.484.91%

10

0.191.04.9

0.412.111

SD-2B-7

0.0978.00%

1.2

0.311.68.0

0.663.317

SD-2B-8

0.258.00%

3.1

0.311.68.0

0.663.317

SD-2B-9

0.1338.00%

1.7

0.311.68.0

0.663.317

SD-2B-10

0868.00%

11

0.311.68.0

0.663.317

£920 TOO



(compare with established freshwater or saltwater criteria shown in Table 2)** * - Criterion (ug PCBs/gOC) x Fraction OC * Total PCB equivalent



Units: ug/g = mg/kg - parts per million (pom)

Page 15 of 16



LOCATION

TOTAL PCBs (ug/g)Total Organic Carbon (*)*NORMALIZED PCBs (ug/gOC)**




Lower (ug PCBs/g sediment)Mean (ug PCBs/g sediment)Upper (ug PCBs/g sedfenent)

SD-2B-11

0.168.00%

2.0

0.311.68.0

0.663.317

SO-3-1

0.598.00%

7.4

0.311.68.0

0.663.317

SO-3-2

U0.963%

U

0.040.191.0

0.080.402.1

SD-3-3

U0.235%

U

0.010.050.23

0.020.100.50

SD-3-4

0.167.065%

2.3

0.271.47.1

0.593.015

3-4-DUP

U8.00%

U

0.311.68.0

0.663.317

SD-3-5

0.325.26%

6.1

0.201.05.3

0.442.211

SD-3-6

0.314.66%

6.7

0.180.914.7

0.391.910

SD-4-1

0.636.335%

10

0.251.26.3

0.532.614

roo


are considered to be 8%* * - Total PCBs (ug/g) x Fraction OC » Normalized PCB concentration




Units: ug/g » mg/kg - parts per million (ppm)

Page 16 of 16



LOCATION






4-1 DUP

0.438.00%

5.4

0.311.68.0

0.663.317

SD-4-2

0.344.19%

8.1

0.160.824.2

0.351.89.0

SD-4-3

U0.2705%

U

0.010.050.27

0.020.110.58

SD-4-4

U8.00%

U

0.311.68.0

0.663.317

SD-4-5

0.122.99%

4.0

0.120.583.0

0.251.26.4

SD-4-6

0.374.39%

8.4

0.170.864.4

0.361.89.4

S920 TOO D9H





Source: All data from Draft Final Remedial InvestigationReport for Kin-Buc Landfill Operable Unit 2 (October 1990.revised May 1991) and Draft Supplemental SedimentSampling Program for the Edmonds Creek/Marsh Area.Kin-Buc Landfill Site Operable Unit 2 (April 1991)

Units: ug/g = mg/kg « parts per million (pom)


SUMMARY OF USEPA PCB SEDIMENT CRITERIA

FRESHWATERLowerMeanUpper

SALTWATERLowerMeanUpper

3.87 ug PCBs/g OCl9.5ugPCBs/gOC99.9 ug PCBs/gOC

8.29 ug PCBs/g OC41 .8 ug PCBs/g OC2l4ugPCBs/gOC

Notes

OC » Organic carbon

Source: USEPA, 1988. Interim Sediment CriteriaValues for Nonpolar Hydrophobia OrganicContaminants. Office of Water Regulations andStandards, Criteria and Standards Division.Washington, D.C.

DOO

Oo

ONJ<T\

EPA REGION IISCANNING TRACKING SHEET

DOC ID #56264

DOC TITLE/SUBJECT:FIGURE 8KIN-BUC LANDFILL, OPERABLE UNIT 2NORMALIZED PCB CONCENTRATION WITHAPPROXIMATE DISTRIBUTION OF AREAEXCEEDING THE LOWER 95 PERCENTCONFIDENCE INTERVAL FOR SALTWATERSQC OF PCBs (ug PCB / g CARBON)

THIS DOCUMENT IS OVERSIZED AND CAN BELOCATED IN THE ADMINISTRATIVE RECORD FILEAT THE

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DOC ID # 56264

DOC TITLE/SUBJECT:FIGURE 7KIN-BUC LANDFILL, OPERABLE UNIT 2NORMALIZED PCB CONCENTRATIONS WITHAPPROXIMATE DISTRIBUTION OF AREAEXCEEDING THE MEAN SALTWATER SQC OFPCBs (ug PCB / g CARBON)




DOC ID # 56264

DOC TITLE/SUBJECT:FIGURE 6KIN-BUC LANDFILL, OPERABLE UNIT 2NORMALIZED PCB CONCENTRATION WITHAPPROXIMATE DISTRIBUTION OF AREAEXCEEDING THE UPPER 95 PERCENTCONFIDENCE INTERVAL FOR SALTWATERSQC OF PCBs (ug PCB / g CARBON)




DOC ID #56264

DOC TITLE/SUBJECT:FIGURE 5KIN-BUC LANDFILL, OPERABLE UNIT 2NORMALIZED PCB CONCENTRATIONS WITHAPPROXIMATE DISTRIBUTION OF AREAEXCEEDING THE LOWER 95 PERCENTCONFIDENCE INTERVAL FOR FRESHWATERSQC OF PCBs (ug PCB / g CARBON)




DOC ID # 56264

DOC TITLE/SUBJECT:FIGURE 4KIN-BUC LANDFILL, OPERABLE UNIT 2NORMALIZED PCB CONCENTRATIONS WITHAPPROXIMATE DISTRIBUTION OF AREAEXCEEDING THE MEAN FRESHWATER SQCFOR PCBs (ug PCB / g CARBON)



^ EPA REGION IISCANNING TRACKING SHEET

DOC ID #56264

DOC TITLE/SUBJECT:FIGURE 3KIN-BUC LANDFILL, OPERABLE UNIT 2NORMALIZED PCB CONCENTRATIONS WITHAPPROXIMATE DISTRIBUTION OF AREASEXCEEDING THE UPPER 95 PERCENTCONFIDENCE INTERVAL OF FRESHWATERSQC FOR PCBs (ug PCB / g CARBON)




DOC ID # 56264

DOC TITLE/SUBJECT-FIGURE 2KIN-BUC LANDFILL, OPERABLE UNIT 2NORMALIZED PCB CONCENTRATIONS(ug PCB / g CARBON)




DOC ID # 56264

DOC TITLE/SUBJECT:FIGURE 1KIN-BUC LANDFILL, OPERABLE UNIT 2TOTAL PCB CONCENTRATIONS WITHAPPROXIMATE DISTRIBUTION OF AREASEXCEEDING 5 PPM PCBs IN SEDIMENTS



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January 20, 1992 M