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PUBLIC HEALTH ASSESSMENT
WILLOW RUN SLUDGE LAGOON
YPSILANTI, WASHTENAW COUNTY, MICHIGAN


APPENDIX B.

TABLES

LIST OF TABLES

Table 1. List of Contaminants of Concern at the Willow Run Sludge Lagoon Site.

Table 2. Concentrations of contaminants of concern in samples of sediment from the Willow Run Sludge Lagoon Site.

Table 3. Concentrations of contaminants of concern in samples of sediment from Ypsilanti Drain No. 8 near the Willow Run Sludge Lagoon Site.

Table 4. Concentrations of contaminants of concern in surface water samples from the Willow Run Sludge Lagoon Site.

Table 5. Concentrations of contaminants of concern in surface water samples from Ypsilanti Drain No. 8 near the Willow Run Sludge Lagoon Site.

Table 6. Concentrations of contaminants of concern in samples that included surface material from the Willow Run Sludge Lagoon Site.

Table 7. Concentrations of contaminants of concern in sludge samples from the Willow Run Sludge Lagoon Site.

Table 8. Concentrations of contaminants of concern in subsurface soil samples from the Willow Run Sludge Lagoon Site.

Table 9. Concentrations of contaminants of concern in groundwater samples from a monitoring well on the Willow Run Sludge Lagoon Site, from the FIT study, 1982.

Table 10. Concentrations of contaminants of concern in surface water samples from Willow Run Creek near the Willow Run Sludge Lagoon Site.

Table 11. Concentrations of contaminants of concern in samples of sediment from Willow Run Creek near the Willow Run Sludge Lagoon Site.

Table 12. Concentrations of chemicals of concern in surface water samples from ponds along Willow Run Creek.

Table 13. Concentrations of contaminants of concern in sediment samples from ponds along Willow Run Creek.

Table 14. Concentrations of contaminants of concern in samples of sediment from Ypsilanti Drain No. 8 upstream of the Willow Run Sludge Lagoon Site.

Table 15. Concentrations of contaminants of concern in samples of surface water collected from the Willow Run Separator Drain, from the ESI, 1991.

Table 16. Concentrations of contaminants of concern in samples of sediment collected from the Willow Run Separator Drain.

Table 17. Concentrations of contaminants of concern in groundwater samples from monitoring wells adjacent to the Willow Run Sludge Lagoon Site, from the FIT study, 1982.

Table 18. Concentrations of contaminants of concern in groundwater samples from monitoring wells along Willow Run Creek, from the FIT, 1982, the ESI, 1991, and the EE/CA, 1994.

Table 19. Concentrations of contaminants of concern in groundwater samples from monitoring wells adjacent to the Willow Run Sludge Lagoon Site, from the RI, 1989-90, and from the ESI, 1991.

Table 20. Concentrations of contaminants of concern in groundwater samples from monitoring wells around the Fons and Old Wayne Disposal Landfills, near the Willow Run Sludge Lagoon, June 1993.

Table 21. Concentrations of contaminants of concern in groundwater samples from domestic, industrial, or municipal wells in the vicinity of the Willow Run Sludge Lagoon Site, 1981-2, 1991.

Table 22. Concentrations of chemicals of concern in soil samples collected adjacent to Willow Run Creek, 1991, 1994.

Table 23. Concentrations of contaminants of concern in soil samples from a residence near the Willow Run Sludge Lagoon Site, March 1994.

Table 24. Fish contamination data from Belleville Lake, 1988.



Table 1. List of Contaminants of Concern at the Willow Run Sludge Lagoon Site.
VOLATILE ORGANIC CHEMICALS (VOCs) METALS AND INORGANIC CHEMICALS POLYCYCLIC AROMATIC HYDROCARBONS (PAHs) SEMI-VOLATILE ORGANIC CHEMICALS (SVOCs) POLYCHLORINATED BIPHENYLS (PCBs)
acetone
benzene
chloroform
1,1-dichloroethane
1,2-dichloroethane
1,1-dichloroethylene
cis-1,2-dichloroethylene 1,1,1-trichloroethane
trichloroethylene
antimony
arsenic
barium
beryllium
boron
cadmium
chromium
cobalt
copper
cyanide
lead
manganese
mercury
nickel
selenium
silver
thallium
vanadium
zinc
acenaphthylene
benzo(a)anthracene
benzo(a)pyrene
benzo(b)fluoranthene
benzo(g,h,i)perylene
benzo(k)fluoranthene
chrysene
dibenz(a,h)anthracene
indeno(1,2,3-cd)pyrene 2-methylnaphthalene
naphthalene
phenanthrene
bis(2-ethylhexyl)phthalate butylbenzyl phthalate
dibenzofuran
1,4-dichlorobenzene
di-n-octylphthalate
2-methylphenol
3-methylphenol
4-methylphenol

Table 2. Concentrations of contaminants of concern in samples of sediment from the Willow Run Sludge Lagoon Site.

Chemical Date Maximum Concentration
(ppm)
Reference Comparison Value
(ppm)
lagoon outlet seep
acetone 1990 0.67J 1.J ND (0.02J) 2 200R
antimony 1990 28.7J ND (6.4) ND (8.1J) 2 0.8R
arsenic 1990 29.6 25.2 110 2 0.6E, 0.4C
barium 1990 739.J 107.J 463 2 100R
benzo(a)anthracene 1990 ND (13) 2.2J ND (1.3) 2 carcinogen
benzo(a)pyrene 1990 ND (13) 1.8J ND (1.3) 2 0.1C
benzo(b)fluoranthene 1990 2.4J 3.2J ND (1.3) 2 carcinogen
benzo(g,h,i)perylene 1990 2.J 0.089J ND (1.3) 2 NA
bis(2-ethylhexyl)phthalate 1990 ND (13) 6.5 0.41J 2 40R, 50C
cadmium 1979 30 ND (1) 2 1E, carcinogen
1990 52.9 9.9 ND (0.36) 2
chromium (total) 1979 4,800 4 2 2,000R (III)
10R, 60C (VI)
1990 2,100.J 135.J 9.8 2
chrysene 1990 ND (13) 3.4J ND (1.3) 2 carcinogen
cobalt 1990 17.9J 11.7J 5.6J 2 NA
copper 1979 530 12 2 NA
1990 450.J 38.6J 24 2
cyanide 1979 460 ND (1) 2 40R
1990 138 4.2 ND (1.1) 2
di-n-octylphthalate 1990 ND (13) ND (6.3) 0.27J 2 NA
indeno(1,2,3-cd)pyrene 1990 1.7J ND (6.3) ND (1.3) 2 carcinogen
lead 1979 400 2 2 carcinogen
1990 485 90.9 9.1 2
manganese 1990 602.J 1,030.J 524 2 300R
mercury 1979 5.7 ND (1) 2 NA
1990 8.3 2.6 ND (0.25) 2
nickel 1979 53 7 2 40R, carcinogen
1990 44.6J 23.2 16.2 2
PCBs 1979 610 0.21 2 0.04E, 0.09C
1990 5,800 1,570 ND (0.64) 2
phenanthrene 1990 ND (13) 4.1J ND (1.3) 2 NA
selenium 1990 4.6 1.J ND (4) 2 4E
silver 1990 181 4.7 0.9J 2 10R
vanadium 1990 26.J 26.3 16.3J 2 6Ei
zinc 1979 23,000 120 2 600R
1990 6,470.J 1,520.J 44.1 2

Only chemicals that were detected are listed

Bolded chemicals exceed comparison values.

ND – Not Detected (with detection limit)

J – Estimated Value

– = Sampling Site Not Sampled or Chemical Not Analyzed For

(III) – For chromium(III)

(VI) – For chromium(VI)

NA – None Available

carcinogen – Carcinogen (proven, probable, or possible) but no CREG available

    Comparison Value Bases
    E – ATSDR Environmental Media Evaluation Guides (EMEGs)
    Ei – ATSDR Environmental Media Evaluation Guides (EMEGs), intermediate-term exposure
    R – ATSDR Reference Dose Media Evaluation Guides (RMEGs), calculated from U.S. EPA Reference Dose, assuming child ingestion
    C – ATSDR Cancer Risk Evaluation Guides (CREGs), for 1 x 10-6 estimated excess cancer risk (a significant additional risk of developing cancer is taken to be one additional case of cancer in a population of 1 million people experiencing the exposure)

Table 3. Concentrations of contaminants of concern in samples of sediment from Ypsilanti Drain No. 8 near the Willow Run Sludge Lagoon Site.

Chemical Date Maximum Concentration
(ppm)
Reference Comparison Value
(ppm)
upstream downstream
arsenic 1990 11.5 21 2 0.6E, 0.4C
barium 1990 50.8 66.5 2 100R
benzo(a)anthracene 1990 0.21J 0.21J 2 carcinogen
benzo(a)pyrene 1990 0.19J 0.18J 2 0.1C
benzo(b)fluoranthene 1990 0.53J 0.38J 2 carcinogen
benzo(g,h,i)perylene 1990 0.21J 0.28J 2 NA
cadmium 1990 9.1 26.6J 2 1E, carcinogen
chromium (total) 1990 17.9 242 2 2,000R (III)
10R, 60C (VI)
chrysene 1990 0.48J 0.45J 2 carcinogen
cobalt 1990 5.2 8.J 2 NA
copper 1990 30.5J 36 2 NA
indeno(1,2,3-cd)pyrene 1990 0.17J 0.22J 2 carcinogen
lead 1990 36.8 148 2 carcinogen
manganese 1990 446.J 767.J 2 300R
mercury 1990 0.24 ND (0.18) 2 NA
nickel 1990 22.6 21.3 2 40R, carcinogen
PCBs 1990 0.61 32.2 2 0.04E, 0.09C
phenanthrene 1990 0.32J 0.28J 2 NA
thallium 1990 0.53J 0.63J 2 NA
vanadium 1990 18.3 26.5J 2 6Ei
zinc 1990 137 162 2 600R

Only chemicals that were detected are listed

Bolded chemicals exceed comparison values.

ND – Not Detected (with detection limit)

J – Estimated Value

(III) – For chromium(III)

(VI) – For chromium(VI)

NA – None Available

carcinogen – Carcinogen (proven, probable, or possible) but no CREG available

    Comparison Value Bases
    E – ATSDR Environmental Media Evaluation Guides (EMEGs)
    Ei – ATSDR Environmental Media Evaluation Guides (EMEGs), intermediate-term exposure
    R – ATSDR Reference Dose Media Evaluation Guides (RMEGs), calculated from U.S. EPA Reference Dose, assuming child ingestion
    C – ATSDR Cancer Risk Evaluation Guides (CREGs), for 1 x 10-6 estimated excess cancer risk (a significant additional risk of developing cancer is taken to be one additional case of cancer in a population of 1 million people experiencing the exposure)

Table 4. Concentrations of contaminants of concern in surface water samples from the Willow Run Sludge Lagoon Site.

Chemical Date Maximum Concentration
(ppb)
Reference Comparison Value
(ppb)
lagoon outlet seep
arsenic 1989 46.9 7.6J 2 3E, 0.02C
1990 6.9J 5.2J 89.2J 2
1991 2,600 4
barium 1989 241 133.J 2 700R
1990 39.7J 77.3J 535 2
benzene 1991 24 4 1C
bis(2-ethylhexyl)phthalate 1989 ND (10) ND (10) 2 200R, 3C
1990 5.J ND (10) ND (10) 2
cadmium 1981 5 1 7E, carcinogen
1989 46.6 5.7 2
1990 9.2J 3.J ND (1.0) 2
chloroethane 1991 42 4 NA
chromium 1989 580 4.2J 2 10,000R (III)
50R, 3C (VI)
1990 82.4J ND (4.5) ND (6.2) 2
cobalt 1989 15.1J 8.8J 2 NA
1990 ND (7.7J) 6.6J ND (11.3) 2
copper 1981 20 1 1,300MG
1989 261 6.8J 2
1990 37.8J ND (4.2) ND (10.8) 2
cyanide 1981 96 1 200R
1989 49 ND (10) 2
1990 19.5J 10.6 ND (10) 2
1991 7 4
lead 1989 198.J 5.7J 2 15PL, carcinogen
1990 29.9J 3.6J ND (8.8) 2
manganese 1989 901 1,100 2 50R
1990 248.J 716 1,000 2
nickel 1989 69.1 ND (28.5) 2 200R, carcinogen
1990 ND (6.6) ND (21) ND (10.7) 2
PCBs (total) 1979 37.6 1 0.2E, 0.005C
1981 0.33 1
1989 7,300.J 4.J 2
1990 490.J 9.J ND (1.0) 2
selenium 1989 ND (2) ND (2) 2 20E
1990 2.9J 3.1J ND (2.0) 2
silver 1989 67.8J 10.9 2 10R
1990 ND (4.1J) 4.7 13.5J 2
thallium 1989 ND (2) ND (2) 2 0.4A
1990 ND (2) ND (2) 2.5J 2
vanadium 1989 ND (6.9) 2.9 2 30Ei
1990 ND (3.8) ND (3.8) 11.2J 2
zinc 1989 8,850 321 2 3,000R
1990 1,670.J 535 32.3 2
1991 20 4

Only chemicals that were detected are listed

Bolded chemicals exceed comparison values.

ND – Not Detected (with detection limit)

J – Estimated Value

– = Sampling Site Not Sampled or Chemical Not Analyzed For

NA – None Available

carcinogen – Carcinogen (proven, probable, or possible) but no CREG available

(III) – For chromium(III)

(VI) – For chromium(VI)

    Comparison Value Bases
    E – ATSDR Environmental Media Evaluation Guides (EMEGs)
    Ei – ATSDR Environmental Media Evaluation Guides (EMEGs), intermediate-term exposure
    R – ATSDR Reference Dose Media Evaluation Guides (RMEGs), calculated from U.S. EPA Reference Dose, assuming child ingestion
    A – U.S. EPA Drinking Water Health Advisory (Lifetime)
    MG– U.S. EPA Safe Drinking Water Act Maximum Contaminant Level Goal
    PL– U.S. EPA Proposed Action Level for Lead in Drinking Water
    C – ATSDR Cancer Risk Evaluation Guides (CREGs), for 1 x 10-6 estimated excess cancer risk (a significant additional risk of developing cancer is taken to be one additional case of cancer in a population of 1 million people experiencing the exposure)

Table 5. Concentrations of contaminants of concern in surface water samples from Ypsilanti Drain No. 8 near the Willow Run Sludge Lagoon Site.

Chemical Date Maximum Concentration
(ppb)
Reference Comparison Value
(ppb)
upstream downstream
arsenic 1990 98.2J 138.J 2 3E, 0.02C
barium 1990 97.9J 105.J 2 700R
boron 1982 140 1 100Ei
chloroform 1981 50 2 100E, 6C
1982 7 1
copper 1981 25 2 1,300MG
1,2-dichloroethane 1981 12 2 0.4C
manganese 1982 200 1 50R
1990 69.7 125 2
nickel 1981 65 2 200R, carcinogen
thallium 1990 3.1J 4.4J 2 0.4A
vanadium 1990 5.J 3.5J 2 30Ei
zinc 1981 65 2 3,000R
1982 80 1
1990 ND (7.5) 7.2 2

Only chemicals that were detected are listed

Bolded chemicals exceed comparison values.

ND – Not Detected (with detection limit)

J – Estimated Value

– = Sampling Site Not Sampled or Chemical Not Analyzed For

NA – None Available

carcinogen – Carcinogen (proven, probable, or possible) but no CREG available

    Comparison Value Bases
    E – ATSDR Environmental Media Evaluation Guides (EMEGs)
    Ei – ATSDR Environmental Media Evaluation Guides (EMEGs), intermediate-term exposure
    R – ATSDR Reference Dose Media Evaluation Guides (RMEGs), calculated from U.S. EPA Reference Dose, assuming child ingestion
    A – U.S. EPA Drinking Water Health Advisory (Lifetime)
    MG– U.S. EPA Safe Drinking Water Act Maximum Contaminant Level Goal
    C – ATSDR Cancer Risk Evaluation Guides (CREGs), for 1 x 10-6 estimated excess cancer risk (a significant additional risk of developing cancer is taken to be one additional case of cancer in a population of 1 million people experiencing the exposure)

Table 6. Concentrations of contaminants of concern in samples that included surface material from the Willow Run Sludge Lagoon Site.

Chemical Date Maximum Concentration
(ppm)
Reference Comparison Value
(ppm)
northwest (0-5.5') southwest (0-1')
acetone 1990 110.J ND (0.015J) 2 200R
antimony 1990 18.5J ND (11.4J) 2 0.8R
arsenic 1990 8.3 7.2 2 0.6E, 0.4C
barium 1990 436 14.2J 2 100R
benzo(a)anthracene 1990 2.1J ND (0.38) 2 carcinogen
benzo(a)pyrene 1990 1.3J ND (0.38) 2 0.1C
benzo(b)fluoranthene 1990 2.8J ND (0.38) 2 carcinogen
benzo(g,h,i)perylene 1990 1.6J ND (0.38) 2 NA
bis(2-ethylhexyl)phthalate 1990 4.9 ND (0.38) 2 40R, 50C
cadmium 1990 13.5 ND (0.76J) 2 1E, carcinogen
chromium (total) 1990 2,060 6.2 2 2,000R (III)
10R, 60C (VI)
cobalt 1990 5.7J 2.2J 2 NA
copper 1990 295 3.1J 2 NA
cyanide 1990 33.2 ND (0.54) 2 40R
di-n-octylphthalate 1990 1.9J ND (0.38) 2 NA
indeno(1,2,3-cd)pyrene 1990 1.9J ND (0.38) 2 carcinogen
lead 1990 294 4.9J 2 carcinogen
manganese 1990 311 52.5 2 300R
nickel 1990 20.6 27.2 2 40R, carcinogen
PCBs (total) 1990 840 ND (0.2) 2 0.04E, 0.09C
selenium 1990 0.76J 0.48J 2 4E
silver 1990 19.6J 0.94J 2 10R
1,1,1-trichloroethane 1990 0.52J ND 2 NA
vanadium 1990 11.1J 9.7 2 6Ei
zinc 1990 9,110 18.6 2 600R

Only chemicals that were detected are listed

Bolded chemicals exceed comparison values.

ND – Not Detected (with detection limit)

J – Estimated Value

(III) – For chromium(III)

(VI) – For chromium(VI)

NA – None Available

carcinogen – Carcinogen (proven, probable, or possible) but no CREG available

    Comparison Value Bases
    E – ATSDR Environmental Media Evaluation Guides (EMEGs)
    Ei – ATSDR Environmental Media Evaluation Guides (EMEGs), intermediate-term exposure
    R – ATSDR Reference Dose Media Evaluation Guides (RMEGs), calculated from U.S. EPA Reference Dose, assuming child ingestion
    C – ATSDR Cancer Risk Evaluation Guides (CREGs), for 1 x 10-6 estimated excess cancer risk (a significant additional risk of developing cancer is taken to be one additional case of cancer in a population of 1 million people experiencing the exposure)

Table 7. Concentrations of contaminants of concern in sludge samples from the Willow Run Sludge Lagoon Site.

Chemical Date Maximum Concentration
(ppm)
Reference Comparison Value
(ppm)
acetone 1989 830.J 2 200R
antimony 1989 82.5 2 0.8R
arsenic 1989 20 2 0.6E, 0.4C
barium 1989 1,130 2 100R
benzo(a)anthracene 1989 8.2J 2 carcinogen
benzo(a)pyrene 1989 11.J 2 0.1C
benzo(b)fluoranthene 1989 19 2 carcinogen
benzo(g,h,i)perylene 1989 2.8J 2 NA
bis(2-ethylhexyl)phthalate 1989 110 2 40R, 50C
cadmium 1989 1,000.J 2 1E, carcinogen
chromium (total) 1989 22,300.J 2 2,000R (III)
10R, 60C (VI)
chrysene 1989 13.J 2 carcinogen
cobalt 1989 19.5J 2 NA
copper 1989 468 2 NA
cyanide 1989 126.J 2 40R
dibenzofuran 1989 3.9J 2 NA
1,4-dichlorobenzene 1989 15.J 2 carcinogen
di-n-octylphthalate 1989 5.4 2 NA
indeno(1,2,3-cd)pyrene 1989 4.1J 2 carcinogen
lead 1989 855.J 2 carcinogen
manganese 1989 1,080.J 2 300R
mercury 1989 14.1J 2 NA
2-methylnaphthalene 1989 28 2 NA
naphthalene 1989 9.5J 2 NA
nickel 1989 54.8 2 40R, carcinogen
PCBs (total) 1989 8,300 2 0.04E, 0.09C
phenanthrene 1989 31 2 NA
selenium 1989 2.7J 2 4E
silver 1989 179 2 10R
1,1,1-trichloroethane 1989 0.065J 2 NA
vanadium 1989 22.5J 2 6Ei
zinc 1989 12,000.J 2 600R

Only chemicals that were detected are listed

Bolded chemicals exceed comparison values.

ND – Not Detected (with detection limit)

J – Estimated Value

(III) – For chromium(III)

(VI) – For chromium(VI)

NA – None Available

carcinogen – Carcinogen (proven, probable, or possible) but no CREG available

    Comparison Value Bases
    E – ATSDR Environmental Media Evaluation Guides (EMEGs)
    Ei – ATSDR Environmental Media Evaluation Guides (EMEGs), intermediate-term exposure
    R – ATSDR Reference Dose Media Evaluation Guides (RMEGs), calculated from U.S. EPA Reference Dose, assuming child ingestion
    C – ATSDR Cancer Risk Evaluation Guides (CREGs), for 1 x 10-6 estimated excess cancer risk (a significant additional risk of developing cancer is taken to be one additional case of cancer in a population of 1 million people experiencing the exposure)

Table 8. Concentrations of contaminants of concern in subsurface soil samples from the Willow Run Sludge Lagoon Site.

Chemical Date Maximum Concentration
(ppm)
Reference Comparison Value
(ppm)
below lagoon other borings
acetone 1989 2.9J 13.J 2 200R
arsenic 1989 16 18.9 2 0.6E, 0.4C
barium 1989 102 107 2 100R
benzo(a)anthracene 1989 2.8J ND (0.43) 2 carcinogen
benzo(a)pyrene 1989 1.1J ND (0.43) 2 0.1C
benzo(b)fluoranthene 1989 2.9J ND (0.43) 2 carcinogen
bis(2-ethylhexyl)phthalate 1989 34.J 0.68 2 40R, 50C
chromium (total) 1989 32.3J 24.5 2 2,000R (III)
10R, 60C (VI)
chrysene 1989 13.J 0.055J 2 carcinogen
cobalt 1989 13.1 15.3 2 NA
copper 1989 24.3 25.6 2 NA
1,4-dichlorobenzene 1989 1.8J ND (0.42) 2 carcinogen
di-n-octylphthalate 1989 ND 0.049J 2 NA
indeno(1,2,3-cd)pyrene 1989 1.3J ND (0.43) 2 carcinogen
lead 1989 12.8 12.9J 2 carcinogen
manganese 1989 461 454 2 300R
2-methylnaphthalene 1989 10.J 0.072J 2 NA
naphthalene 1989 5.2J ND (0.43) 2 NA
nickel 1989 31.7 49.6 2 40R, carcinogen
PCBs (total) 1989 50 ND (0.2) 2 0.04E, 0.09C
phenanthrene 1989 0.053J 0.08J 2 NA
selenium 1989 ND (3.9) 0.48J 2 4E
silver 1989 ND (0.2) 6.3J 2 10R
thallium 1989 ND (0.39) 0.5J 2 NA
1,1,1-trichloroethane 1989 ND (0.062) 0.43J 2 NA
vanadium 1989 38.2 24.5 2 6Ei
zinc 1989 70.6 73 2 600R
 

Only chemicals that were detected are listed

Bolded chemicals exceed comparison values.

ND – Not Detected (with detection limit)

J – Estimated Value

(III) – For chromium(III)

(VI) – For chromium(VI)

NA – None Available

carcinogen – Carcinogen (proven, probable, or possible) but no CREG available

    Comparison Value Bases
    E – ATSDR Environmental Media Evaluation Guides (EMEGs)
    Ei – ATSDR Environmental Media Evaluation Guides (EMEGs), intermediate-term exposure
    R – ATSDR Reference Dose Media Evaluation Guides (RMEGs), calculated from U.S. EPA Reference Dose, assuming child ingestion
    C – ATSDR Cancer Risk Evaluation Guides (CREGs), for 1 x 10-6 estimated excess cancer risk (a significant additional risk of developing cancer is taken to be one additional case of cancer in a population of 1 million people experiencing the exposure)

Table 9. Concentrations of contaminants of concern in groundwater samples from a monitoring well on the Willow Run Sludge Lagoon Site, from the FIT study, 1982.

Chemical Date Maximum Concentration
(ppb)
Reference Comparison Value
(ppb)
arsenic 1982 36 1 3E, 0.02C
cadmium 1982 9 1 7E, carcinogen
lead 1982 52 1 15PL, carcinogen
manganese 1982 2,500 1 50R
zinc 1982 1,700 1 3,000R

Only chemicals that were detected are listed

Bolded chemicals exceed comparison values.

ND – Not Detected (with detection limit)

J – Estimated Value

NA – None Available

carcinogen – Carcinogen (proven, probable, or possible) but no CREG available

    Comparison Value Bases
    E – ATSDR Environmental Media Evaluation Guides (EMEGs)
    R – ATSDR Reference Dose Media Evaluation Guides (RMEGs), calculated from U.S. EPA Reference Dose, assuming child ingestion
    PL– U.S. EPA Proposed Action Level for Lead in Drinking Water
    C – ATSDR Cancer Risk Evaluation Guides (CREGs), for 1 x 10-6 estimated excess cancer risk (a significant additional risk of developing cancer is taken to be one additional case of cancer in a population of 1 million people experiencing the exposure)

Table 10. Concentrations of contaminants of concern in surface water samples from Willow Run Creek near the Willow Run Sludge Lagoon Site.

Chemical Date Maximum Concentration
(ppb)
Reference Comparison Value
(ppb)
upstream downstream
above separator drain below separator drain
arsenic 1990 66.8J ND (50J) 2 3E, 0.02C
1991 ND ND ND 4
barium 1990 28.3J 31.3J 2 700R
1991 30.9J 30.6J 32.8J 4
boron 1982 2,150 ND 1 100Ei
cadmium 1978 ND (10) 10 1 7E, carcinogen
1982 2.5 8 1
1991 ND ND ND 4
chloroform 1978 20 10 1 100E, 6C
1982 16 7 1
1990 3.J 3.J 2
1991 2.J ND ND 4
chromium (total) 1978 20 10 1 10,000R(III)
50R, 3C(VI)
1982 14 ND 1
1991 ND ND ND 4
cyanide 1978 ND (10) 20 1 200R
1982 15 ND 1
1990 18.5 14.8 2
1991 16.9 ND ND 4
lead 1982 15 15 1 15PL, carcinogen
1991 2.6J 3.2W 1.1J 4
manganese 1982 60 55 1 50R
1990 48.6 51.1 2
1991 29.2 25.J 30.2 4
nickel 1982 140 136 1 200R, carcinogen
1991 9.J 5.5J 6.1J 4
silver 1990 2.6J ND (0.7J) 2 50R
1991 ND ND ND 4
thallium 1990 4.2J 4.J 2 0.4A
1991 ND ND ND 4
vanadium 1990 1.9J ND (1.4) 2 30Ei
1991 ND ND ND 4
zinc 1978 120 80 1 3,000R
1982 1,930 220 1
1990 31.8 30.9 2
1991 28.7 22.1 24.3 4

Only chemicals that were detected are listed

Bolded chemicals exceed comparison values.

ND – Not Detected (with detection limit)

J, W – Estimated Value

NA – None Available

carcinogen – Carcinogen (proven, probable, or possible) but no CREG available

(III) – For chromium(III)

(VI) – For chromium(VI)

    Comparison Value Bases
    E – ATSDR Environmental Media Evaluation Guides (EMEGs)
    Ei – ATSDR Environmental Media Evaluation Guides (EMEGs), intermediate-term exposure
    R – ATSDR Reference Dose Media Evaluation Guides (RMEGs), calculated from U.S. EPA Reference Dose, assuming child ingestion
    A – U.S. EPA Drinking Water Health Advisory (Lifetime)
    MG– U.S. EPA Safe Drinking Water Act Maximum Contaminant Level Goal
    PL– U.S. EPA Proposed Action Level for Lead in Drinking Water
    C – ATSDR Cancer Risk Evaluation Guides (CREGs), for 1 x 10-6 estimated excess cancer risk (a significant additional risk of developing cancer is taken to be one additional case of cancer in a population of 1 million people experiencing the exposure)

Table 11. Concentrations of contaminants of concern in samples of sediment from Willow Run Creek near the Willow Run Sludge Lagoon Site.

Chemical Date Maximum Concentration
(ppm)
Reference Comparison Value
(ppm)
upstream downstream
above separator drain below separator drain
arsenic 1990 22.5 12.9 2 0.6E, 0.4C
1991 2.9 2.5 2.4 4
1994 ND (7) ND (7) 6
barium 1990 78.8 216 2 100R
1991 29.7 23.9 37.1 4
1994 250 24 6
benzo(a)anthracene 1990 0.24J 7.2J 2 carcinogen
1991 0.37J 0.22J 0.55J 4
1994 8 2.6 6
benzo(a)pyrene 1990 0.16J 6 2 0.1C
1991 0.32J 0.43J 0.6J 4
1994 12 0.78 6
benzo(b)fluoranthene 1990 0.16J 7.5 2 carcinogen
1991 0.48J 0.33J 0.95 4
1994 6
benzo(g,h,i)perylene 1990 0.19J 4.4J 2 NA
1991 0.19J 0.14J 0.22J 4
1994 2.1J 0.58J 6
benzo(k)fluoranthene 1990 0.16J 7.3J 2 carcinogen
1991 ND ND ND 4
1994 6
cadmium 1990 0.74J 1.3J 2 1E, carcinogen
1991 ND 0.54J 10.4 4
1994 ND (4) ND (4) 6
chromium (total) 1978 19 1 2,000R (III)
10R, 60C (VI)
1990 19.9 158 2
1991 6.5 16.9 18.9 4
1994 17 19 6
chrysene 1990 0.3J 13.J 2 carcinogen
1991 0.47J 0.29J 0.89J 4
1994 12 0.48 6
cobalt 1990 8.J 5.4J 2 NA
1991 3.4J 3.3J 2.9J 4
1994 8 9 6
copper 1978 7.2 1 NA
1990 17.1 34.3 2
1991 8.6 8.7 6.5 4
1994 ND (7) ND (7) 6
cyanide 1978 0.15 1 40R
1990 ND ND 2
1991 ND ND ND 4
1994 ND (0.4) ND (0.4) 6
dibenz(a,h)anthracene 1990 ND (1.1) 3.J 2 carcinogen
1991 ND 0.04J 0.1J 4
1994 1.3 1.9 6
1,4-dichlorobenzene 1990 ND (0.98) 0.22J 2 carcinogen
di-n-octylphthalate 1990 0.1J ND (1.1) 2 NA
1991 ND ND ND 4
1994 ND (7) ND (7) 6
indeno(1,2,3-cd)pyrene 1990 0.17J 4.9J 2 carcinogen
1991 0.16J 0.11J 0.22J 4
1994 8.2 ND (0.33) 6
lead 1978 13 1 carcinogen
1990 15.4 116 2
1991 5.8 8.5 11.2 4
1994 53 17 6
manganese 1990 1,460 248 2 300R
1991 167 251 79 4
1994 420 250 6
2-methylnaphthalene 1991 ND 0.013J 0.063J 4 NA
1994 ND ND 6
naphthalene 1991 ND ND 0.047J 4 NA
1994 ND ND 6
nickel 1978 7.4 1 40R, carcinogen
1990 21.5 18.7 2
1991 10.8J 10.5 13.6 4
1994 7 16 6
PCBs 1978 0.31 1 0.04E, 0.09C
1990 4.1 62 2
1991 0.3J 0.57J 4.3 4
1994 0.019 0.54J 6
phenanthrene 1990 0.29J 11.J 2 NA
1991 0.47J 0.17J 1.3 4
1994 11 0.48 6
thallium 1990 0.72J ND (0.65) 2 NA
1991 ND ND ND 4
1994 ND (7) ND (7) 6
vanadium 1990 33.8 16.3 2 6Ei
1991 9.9J 9.5J 7.1J 4
1994 8 11 6
zinc 1978 65 1 600R
1990 71.7 526 2
1991 42.6 50.7 83.2 4
1994 33 78 6

Only chemicals that were detected are listed

Bolded chemicals exceed comparison values.

ND – Not Detected (with detection limit)

J – Estimated Value

– = Sampling Site Not Sampled or Chemical Not Analyzed For

(III) – For chromium(III)

(VI) – For chromium(VI)

NA – None Available

carcinogen – Carcinogen (proven, probable, or possible) but no CREG available

    Comparison Value Bases
    E – ATSDR Environmental Media Evaluation Guides (EMEGs)
    Ei – ATSDR Environmental Media Evaluation Guides (EMEGs), intermediate-term exposure
    R – ATSDR Reference Dose Media Evaluation Guides (RMEGs), calculated from U.S. EPA Reference Dose, assuming child ingestion
    C – ATSDR Cancer Risk Evaluation Guides (CREGs), for 1 x 10-6 estimated excess cancer risk (a significant additional risk of developing cancer is taken to be one additional case of cancer in a population of 1 million people experiencing the exposure)

Table 12. Concentrations of chemicals of concern in surface water samples from ponds along Willow Run Creek.

Chemical Date Water Body(7) Reference Comparison Value
(ppb)
GM P. T.P. E.P. B.L.
acetone 1991 5.J 30 ND ND 4 1,000R
barium 1991 76.4J 68.7J 32.1J 45.4J 4 700R
benzo(a)anthracene 1991 ND 1.J ND ND 4 0.1MP, carcinogen
benzo(a)pyrene 1991 ND 1.J ND ND 4 0.2M, 0.005C
benzo(b)fluoranthene 1991 ND 2.J ND ND 4 0.2MP, carcinogen
cadmium 1982 3 ND 8 1 7E, carcinogen
chloroform 1982 ND ND 7 ND 1 100E, 6C
1991 ND 0.7J ND ND 4
chromium (total) 1978 ND (10) 30 ND (10) 1 10,000R (III)
50R, 3C (VI)
chrysene 1991 ND 2.J ND ND 4 0.2MP, carcinogen
copper 1978 10 ND (10) ND (10) 1 1,300MG
cyanide 1978 10 10 10 1 200R
1979 10 1
di-n-octylphthalate 1991 ND 0.4J ND ND 4 NA
lead 1982 14 13 15 1 15PL, carcinogen
1991 1.1J 2.1J 8.3N 5.4NM 4
manganese 1982 124 32 55 1 50R
1991 79.9 95.4 40 16.2 4
nickel 1978 ND (50) 60 ND (50) 1 200R, carcinogen
1982 136 136 1
1991 ND ND 7.4J 5.2J 4
PCBs (total) 1976 0.11 0.1 1 0.2E, 0.005C
phenanthrene 1991 ND 2.J ND ND 4 NA
selenium 1982 3 ND ND 1 20E
trichloroethylene 1991 ND 3.J ND ND 4 3C
zinc 1978 20 20 80 1 3,000R
1979 50 1
1982 46 54 220 1
1991 9.7J 8.J 45.2 15.8J 4

Only chemicals that were detected are listed

Bolded chemicals exceed comparison values.

Concentrations in parts per billion (ppb)

ND – Not Detected (with detection limit)

J – Estimated Value

– = Sampling Site Not Sampled or Chemical Not Analyzed For

NA – None Available

carcinogen – Carcinogen (proven, probable, or possible) but no CREG available

(III) – For chromium(III)

(VI) – For chromium(VI)

    Comparison Value Bases
    E – ATSDR Environmental Media Evaluation Guides (EMEGs)
    R – ATSDR Reference Dose Media Evaluation Guides (RMEGs), calculated from U.S. EPA Reference Dose, assuming child ingestion
    A – U.S. EPA Drinking Water Health Advisory (Lifetime)
    PL– U.S. EPA Proposed Action Level for Lead in Drinking Water
    M– U.S. EPA Safe Drinking Water Act Maximum Contaminant Level
    MG– U.S. EPA Safe Drinking Water Act Maximum Contaminant Level Goal
    MP– U.S. EPA Safe Drinking Water Act Maximum Contaminant Level, Proposed
    C – ATSDR Cancer Risk Evaluation Guides (CREGs), for 1 x 10-6 estimated excess cancer risk (a significant additional risk of developing cancer is taken to be one additional case of cancer in a population of 1 million people experiencing the exposure)




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