ATSDR - PHA - TRI-COUNTY LANDFILL WASTE MANAGEMENT OF ILLINOIS, SOUTH ELGIN, KANE COUNTY, ILLINOIS

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PUBLIC HEALTH ASSESSMENT

TRI-COUNTY LANDFILL WASTE MANAGEMENT OF ILLINOIS
SOUTH ELGIN, KANE COUNTY, ILLINOIS

APPENDIX A. FIGURES

Figure 1. Regional Site Location Map

Figure 2. Tri-County and Elgin Landfills

Figure 3. Private Well Locations

Figure 4. Public/Private Well Sampling Locations

Figure 5. Proposed Remedial Alternative

Figure 5b. Proposed Remedial Alternative

Figure 6. Soil Boring and Monitoring Well Location Map

Figure 7. Surface Soil Sampling Locations

Figure 8. Test Pit Locations

Figure 9. Surface Water and Sediment Sampling Locations

Figure 10. Cross Section Location Map

Figure 11a. Stratigraphic Cross Section A-A'

Figure 11b. Stratigraphic Cross Section B-B'

Figure 11c. Stratigraphic Cross Section C-C'

Figure 11d. Stratigraphic Cross Section D-D'

Figure 11e. Stratigraphic Cross Section E-E'

Figure 11f. Stratigraphic Cross Section F-F'

Figure 11g. Stratigraphic Cross Section G-G'

Figure 11h. Stratigraphic Cross Section H-H'

Figure 12. Boring and Well Locations, Elgin,
Tri-County, and Woodland Landfills

Figure 13. Cross Section of the Elgin and
Tri-County Landfills

Figure 14. Topography of the Bedrock Surface

Figure 15. Thickness of the Deep Sand and
Gravel Deposits in the Buried Newark Bedrock Valley

Figure 16. Cities around the Tri-County
and Elgin Landfills

Figure 17. Wells around the Tri-County
and Elgin Landfills

Figure 18. Semi-circular Cross Section
Around the Tri-County and Elgin Landfills

Figure 19. Top of Clay Contour Map

Figure 20. Flow Direction of the
Shallow Groundwater (August 1989)

Figure 21. Flow Direction of the
Shallow Groundwater (February 1991)

Figure 22. Flow Direction of the
Intermediate Groundwater (August 1989)

Figure 23. Flow Direction of the
Intermediate Groundwater (February 1991)

Figure 24. Flow Direction of the
Bedrock Groundwater (August 1989)

Figure 25. Flow Direction of the
Bedrock Groundwater (February 1991)

APPENDIX B. TABLES

Table 1. Organic chemicals in on-site shallow groundwater, June 1989 to December 1990 (WW Engineering and Science, 1991).

Chemical Background Monitoring Wells
(ppb) Non- Background Monitoring Wells
(ppb) Comparison Value
(ppb) Source of Comparison Value

Volatile Compounds

Benzene N.D. N.D.-27 1.2 CREG

2-Butanone N.D. N.D.-81,000 200 LTHA

Chloroethane N.D. N.D.-74 -- --

1,1-Dichloroethane N.D. N.D.-16 -- --

1,2-Dichloroethene N.D. N.D.-180 70 LTHA

2-Hexanone N.D. N.D.-70 -- --

Tetrachloroethene N.D. N.D.-13 0.7 CREG

Trichloroethene N.D. N.D.-24 3 CREG

Vinyl Chloride N.D. N.D.-33 0.2 EMEG

Semi-volatile Compounds

bis(2-Chloroethyl) ether N.D. N.D.-8 0.32 CREG

bis(2-Ethylhexyl) phthalate N.D. N.D.-98 2.5 CREG

Dibenzofuran N.D. N.D.-5 -- --

2-Methylnaphthalene N.D. N.D.-5 -- --

4-Methylphenol N.D. N.D.-73 -- --

Naphthalene N.D. N.D.-23 20 LTHA

Pentachlorophenol N.D. N.D.-9 0.29 CREG

Pesticides

Aldrin N.D. N.D.-0.5 0.0021 CREG

-- = Data not available.
N.D. = Not detected.

Table 2. Inorganic chemicals in on-site shallow groundwater, June 1989 to December 1990 (WW Engineering and Science, 1991).

Chemical Background Monitoring Wells
(ppb) Non-Background Monitoring Wells
(ppb) Comparison Value
(ppb) Source of Comparison Value

Antimony N.D. N.D.-42 3 LTHA

Arsenic N.D.-1.4 N.D.-53.7 3 R_fD

Barium 38.6-116 N.D.-1660 700 R_fD

Beryllium N.D.-0.5 N.D.-0.7 0.0081 CREG

Cadmium N.D. N.D.-4.6 2 EMEG

Lead N.D. N.D.-213 -- --

Manganese N.D.-228 N.D.-12,000 1000 R_fD

Mercury N.D.-0.79 N.D.-2.3 2 LTHA

Nickel N.D.-6.0 N.D.-168 100 LTHA

Thallium N.D. N.D.-13.4 0.4 LTHA

Vanadium N.D. N.D.-20.3 20 LTHA

-- = Data not available.
N.D. = Not detected.

Table 3. Organic chemicals in on-site intermediate groundwater, June 1989 to November 1990 (WW Engineering and Science, 1991).

Chemical Background Monitoring Wells
(ppb) Non-Background Monitoring Wells (ppb) Comparison Value
(ppb) Source of Comparison Value

Volatile Compounds

Benzene N.D. N.D.-10 1.2 CREG

Chloroethane N.D. N.D.-40 -- --

1,1-Dichloroethane N.D. N.D.-16 -- --

1,1,1-Trichloroethane N.D.-5 N.D.-5 -- --

Vinyl chloride N.D. 5 0.2 EMEG

Semi-volatile Organic Compounds

bis (2-Ethylhexyl) phthalate
N.D. N.D.-110 2.5 CREG

-- = Data not available.
N.D. = Not detected.

Table 4. Inorganic chemicals in on-site intermediate groundwater, June 1989 to November 1990 (WW Engineering and Science, 1991).

Chemical Background Monitoring Wells
(ppb) Non-Background Monitoring Wells
(ppb) Comparison Value (ppb) Source of Comparison Value

Antimony N.D. N.D.-21.0 3 LTHA

Arsenic N.D.-1.1 N.D.-31.8 3 R_fD

Barium 28.2-103 38.2-1590 700 R_fD

Beryllium N.D.-0.5 N.D. 0.0081 CREG

Cadmium N.D. N.D.-4.6 2 EMEG

Chromium N.D. N.D.-240 50 R_fD

Fluoride 320-1120 140-1890 600 R_fD

Lead N.D. N.D.-18.5 -- --

Manganese N.D.-91 N.D.-2440 1000 R_fD

Nickel N.D.-7.1 N.D.-149 100 LTHA

-- = Data not available.
N.D. = Not detected.

Table 5. Organic chemicals in on-site deep groundwater, June 1989 to September 1990 (WW Engineering and Science, 1991).

Chemical Background Monitoring Wells
(ppb) Non-Background Monitoring Wells
(ppb) Comparison Value
(ppb) Source of Comparison Value

Volatile Compounds

Chloromethane N.D. N.D.-24 3 LTHA

Semi-volatile Compounds

bis(2-Ethylhexyl) phthalate N.D. N.D.-3 4 MCL

-- = Data not available.
N.D. = Not detected.

Table 6. Inorganic chemicals in on-site deep groundwater, June 1989 to November 1990 (WW Engineering and Science, 1991).

Chemical Background Monitoring Wells
(ppb) Non-Background Monitoring Wells
(ppb) Comparison Value
(ppb) Source of Comparison Value

Arsenic N.D.-3.3 N.D.-11.0 3 R_fD

Beryllium N.D.-0.5 N.D. 0.0081 CREG

Fluoride 300-520 440-1200 600 R_fD

Lead N.D. N.D.-4.6 -- --

-- = Data not available.
N.D. = Not detected.

Table 7. Organic chemicals in on- and off-site private wells, September to October 1990 (WW Engineering and Science, 1991).

Chemical Sand and Gravel Wells (ppb) Bedrock^a Wells (ppb) Unknown Aquifer Wells (ppb) Comparison Value (ppb) Source of Comparison Value

Volatile Compounds

Benzene N.D. N.D.-3 N.D. 1.2 CREG

Bromodichloromethane N.D.-2 N.D. N.D. 0.27 CREG

Chloroethane N.D. 0.6-4 N.D. -- --

Chloroform N.D.-12 N.D. N.D. 5.7 CREG

Dibromochloromethane N.D.-2 N.D. N.D. 0.42 CREG

1,1-Dichloroethane N.D. N.D.-2 N.D. -- --

1,2-Dichloroethane N.D. 0.8-2 N.D. 0.38 CREG

Semi-volatile Organic Compounds

bis(2-Ethylhexyl) phthalate N.D.-7 N.D. N.D.-2^a 4 MCL

^a On-site.
-- = Data not available.
N.D. = Not detected

Table 8. Inorganic chemicals in on-site private wells, September to October 1990 (WW Engineering and Science, 1991).

Chemical Background Bedrock Wells
(ppb) Non-Background Bedrock Wells
(ppb) Unknown Aquifer Wells (ppb) Comparison Value (ppb) Source of Comparison Value

Antimony -- N.D. N.D.-3.2 3 LTHA

Beryllium -- N.D. N.D. 0.0081 CREG

Chromium N.D. N.D.-409 N.D. 50 R_fD

Lead N.D. N.D.-1.0 N.D.-1.1 15 A MCL

Nickel N.D. N.D.-146 N.D. 100 LTHA

Thallium -- N.D.-1.0 1.2-2 0.4 LTHA

-- = Data not available.
N.D. = Not detected.
A = Action level for drinking water (USEPA)

Table 9. Organic chemicals in on-site surface soils, May 1989 to October 1990 (WW Engineering and Science, 1991).

Chemical Background
(ppb) On-site
(ppb) Comparison Value
(ppb) Source of Comparison Value

Semi-volatile compounds

Acenaphthalene N.D. N.D.-78 -- --

Benz(a)anthracene N.D. N.D.-1500 160 CREG

Benzo(b)fluoranthene N.D. N.D.-2300 -- --

Benzo(k)fluoranthene N.D. N.D.-2300 -- --

Benzo(g,h,i)perylene N.D. N.D.-680 -- --

Benzo(a)pyrene N.D. N.D.-1300 -- --

Benzyl alcohol N.D. N.D-170 -- --

bis(2-Ethylhexyl) phthalate N.D.-110 N.D.-4400 50 CREG

Chrysene N.D. N.D.-1600 -- --

Dibenz(a,h)anthracene N.D. N.D.-250 -- --

Dibenzofuran N.D. N.D.-150 -- --

1,4-Dichlorobenzene N.D. N.D.-650 -- --

Ideno(1,2,3-c,d)pyrene N.D. N.D.-600 -- --

2-Methylnaphthalene N.D. N.D.-420 -- --

4-Methylphenol N.D. N.D.-780 -- --

Naphthalene N.D. N.D.-300 -- --

N-Nitroso-di-propylamine N.D. N.D.-120 100 CREG

Phenanthrene N.D. N.D.-2900 -- --

1,2,4-Trichlorobenzene N.D. N.D.-58 -- --

2,4,5-Trichlorophenol N.D. N.D.-49 -- --

-- = Data not available.
N.D. = Not detected.

Table 10. Inorganic chemicals in on-site surface soil, May 1989 to September 1990 (WW Engineering and Science, 1991).

Chemical Background
(ppm) On-site
(ppm) Comparison Value
(ppm) Source of Comparison Value

Antimony N.D. N.D.-10.5 0.8 R_fD

Arsenic 4-5.4 2.4-30.3 0.6 R_fD

Barium 140-174 18.2-275 140 R_fD

Beryllium N.D.-0.43 N.D.-1.3 0.16 CREG

Cadmium N.D. N.D.-2.0 0.4 EMEG

Chromium 13.2-20.4 1.4-31.5 10 R_fD

Lead 14.5-32.9 6.4-179 -- --

Manganese 636-1100 197-2040 200 R_fD

Mercury N.D. N.D.-0.28 -- --

Nickel 11.6-18.9 5.3-45.9 40 R_fD

Thallium N.D.-0.44 N.D.-0.40 -- --

Vanadium 26.6-37.3 12.2-41.8 20 LTHA

-- = Data not available.
N.D. = Not detected.

Table 11. Organic compounds in on-site soil at various depths, May 1989 to October 1990 (WW Engineering and Science, 1991).

0.05

Chemical Background
(ppb) 0.5-2.5 Feet
(ppb) 2.5-5 Feet
(ppb) 5-10 Feet
(ppb) 13-25 Feet
(ppb) 27.5-40 Feet
(ppb) Comparison Value
(ppb) Comparison Value Source

Volatile compounds

2-Butanone N.D. N.D. N.D. N.D. N.D. N.D.- 130 -- --

4-Methyl-2-pentanone N.D. N.D. N.D. N.D. N.D. N.D.-64 -- --

Trichloroethene N.D. N.D.-1 N.D. N.D. N.D.-2 N.D.-10 -- --

Semi-volatile compounds

Benz(a)anthracene N.D. N.D. N.D.- 440 N.D. N.D. N.D. 160 CREG

Benzo(b)fluoranthene N.D. N.D. N.D.-440 N.D. N.D. N.D. -- --

Benzo(k)fluoranthene N.D. N.D. N.D.-440 N.D. N.D. N.D. -- --

Benzo(g,h,i)perylene N.D. N.D. N.D.-87 N.D. N.D. N.D. -- --

Benzo(a)pyrene N.D. N.D. N.D.-110 N.D. N.D. N.D. -- --

Benzoic acid N.D. N.D.-110 N.D. N.D. N.D. N.D. -- --

bis(2-Ethyl-hexyl)phthalate N.D. N.D. N.D.-100 N.D.-120 N.D.-110 N.D.-590 CREG

Chrysene N.D. N.D.-73 N.D.-350 N.D. N.D. N.D. -- --

N-Nitroso-diphenylamine N.D.-110 N.D. N.D. N.D. N.D. N.D. 100 EMEG

Phenanthrene N.D.-52 N.D.-120 N.D.-160 N.D. N.D. N.D. -- --

Pesticides

beta-Benzene hexachloride N.D. N.D. N.D. N.D.-56 N.D. N.D. 0.39 CREG

-- = Data not available.
N.D. = Not detected.

Table 12. Inorganic compounds in on-site soil at various depths, May 1989 to October 1990 (WW Engineering and Science, 1991).

Chemical Background
(ppm) 0.5-2.5 Feet
(ppm) 2.5 - 5 Feet
(ppm) 5 - 10 Feet
(ppm) 13-25 Feet
(ppm) 27.5-40 Feet
(ppm) Comparison Value (ppm) Source of Comparison Value

Antimony N.D. N.D. N.D. N.D.- 18.9 N.D.- 19.3 N.D.- 21.4 0.8 R_fD

Arsenic 2.7-9.6 2.3-8.7 1.8-17.4 1.9-8.0 1.7-7.9 1.3-7.9 0.6 R_fD

Barium 4.8-174 44.8-118 32.6-133 N.D.-104 5.3- 49.8 N.D.- 53.9 140 R_fD

Beryllium N.D.-0.75 N.D.-0.38 N.D.-0.46 N.D.-1.1 N.D.-0.11 N.D.-0.44 0.16 CREG

Cadmium N.D. N.D.-2.3 N.D. N.D.-1.8 N.D.-0.73 N.D. 0.4 EMEG

Chromium 3.8-27.6 7.9-19.8 N.D.-22.3 3.3-14.7 N.D.-17.9 2.2-24.2 10 R_fD

Lead 3.3-32.9 4.9-29.9 3.4-46.5 2.4-10.5 2.6-5.8 2.3-11.1 -- --

Manganese 244-1100 292-656 101-787 142-1150 195-1030 180-424 200 R_fD

Mercury N.D. N.D. N.D. N.D. N.D.-0.108 N.D. -- --

Thallium N.D.-0.44 N.D.-1.8 N.D.-0.23 N.D. N.D. N.D.-0.26 -- --

Vanadium 4.1-4.54 17.1-31.8 11.3-41.1 5.5-24.9 6.0-12.9 N.D.-34.8 -- --

-- = Data not available.
N.D. = Not detected.

Table 13. Organic chemicals in soil of on-site test pits (WW Engineering and Science, 1991).

Chemical On-site (ppb) Comparison Value
(ppb) Source of Comparison Value

Volatile Compounds

Chloroethane N.D.-14 -- --

1,1-Dichloroethane N.D.-280 -- --

1,1,1-Trichloroethane N.D.-14 -- --

Trichloroethene N.D.-44 -- --

Semi-Volatile Compounds

Acenaphthalene N.D.-120 -- --

Benzo(k)fluoranthene N.D.-170 -- --

bis(2-Ethylhexyl) phthalate N.D.-1400 50 CREG

Chrysene N.D.-89 -- --

Diethyl phthalate N.D.-100 -- --

2-Methylnaphthalene N.D.-230 -- --

4-Methylphenol N.D.-730 -- --

Naphthalene N.D.-220 -- --

Phenanthrene N.D.-340 -- --

PCBs
-- --

Arochlor-1242 N.D.-3000 91 CREG

Arochlor-1254 N.D.-610 91 CREG

-- = Data not available.
N.D. = Not detected.

Table 14. Inorganic chemicals in soil of on-site test pits, October 1990 (WW Engineering and Science, 1991).

Chemical On-site (ppm) Comparison Value
(ppm) Source of Comparison Value

Antimony N.D.-58.5 0.8 R_fD

Arsenic 1.9-15.6 0.6 R_fD

Barium 49-420 140 R_fD

Beryllium 0.51-1.00 0.16 CREG

Cadmium N.D.-12.6 0.4 EMEG

Chromium 8.9-57.8 10 R_fD

Lead 8.1-2190 -- --

Manganese 103-1480 200 R_fD

Mercury N.D.-0.38 -- --

Nickel 7.5-263 40 R_fD

Vanadium 11.5-24.9 -- --

-- = Data not available.
N.D. = Not detected.

Table 15. Organic chemicals in on- and off-site surface water, May 1989 to September 1990 (WW Engineering and Science, 1991).

Chemical Upstream Unnamed Tributary (ppb) Downstream Unnamed Tributary (ppb) On-site Drainage Ditch (ppb) On-site Depressions (ppb) Woodland Landfill Pond (ppb) Comparison Value (ppb) Source of Comparison Value

Semi-volatile Compounds

bis(2-ethyl-hexyl) phthalate N.D. N.D. N.D. N.D.-24 N.D. 4 MCL

Hexachloroethane N.D. N.D. N.D. N.D. N.D.-10 2.5 CREG

4-Methylphenol N.D. 4 N.D. N.D.-3 N.D. -- --

-- = Data not available.
N.D. = Not detected.

Table 16. Inorganic chemicals in on- and off-site surface water, May 1989 to September 1990 (WW Engineering and Science, 1991).

Chemical Upstream Unnamed Tributary
(ppm) Downstream Unnamed Tributary
(ppm) On-site Drainage Ditch
(ppm) On-site Depressions
(ppm) Woodland Landfill Pond
(ppm) Comparison Value
(ppm) Source of Comparison Value

Arsenic N.D. N.D. N.D.-9.1 N.D.-66.7 1.8-2.0 3 R_fD

Barium 48.4-61.4 48-57.6 900-18,100 19.6-120 67.2-73.8 700 R_fD

Beryllium N.D. N.D. N.D.-5.0 N.D.-0.7 N.D. 0.0081 CREG

Lead N.D. N.D. N.D.-18.6 N.D.-11.2 N.D. 15 A MCL

Manganese 17.1-62.9 16.3-82.8 606-3430 26.1-910 88.8-133 1000 R_fD

Nickel N.D. N.D. 64.5-297 N.D.-24.1 N.D.-17.1 100 LTHA

Vanadium N.D. N.D. N.D.-191 N.D.-20.1 N.D.-13.5 20 LTHA

-- = Data not available.
N.D. = Not detected.
A = Action level for drinking water (USEPA)

Table 17. Organic chemicals in on- and off-site sediments, May 1989 to September 1990 (WW Engineering and Science, 1991).

Chemical Upstream Unnamed Tributary
(ppb) Background Marsh
(ppb) Downstream Unnamed Tributary
(ppb) On-site Drainage Ditch
(ppb) On-site Depressions
(ppb) Woodland landfill Pond
(ppm) Comparison Value
(ppb) Source of Comparison Value

Volatile Compounds

2-Butanone N.D.-59 N.D. N.D.-19 N.D. N.D. -- -- --

Trichloroethene N.D. N.D.-5 N.D. N.D. N.D. -- -- --

Semi-volatile Compounds

Benz(a)anthracene N.D.-33,000 N.D.-160 N.D.-13,000 N.D. N.D.-650 N.D. 160 CREG

Benzo(b)fluoranthene N.D.-30,000 N.D.-160 N.D.-10,000 N.D. N.D.-4800 N.D. -- --

Benzo(k)fluoranthene N.D.-21,000 N.D. N.D.-9700 N.D. N.D.-620 N.D. -- --

Benzo(g,h,i)perylene N.D.-15,000 N.D. N.D.-10,000 N.D. N.D.-530 N.D. -- --

bis(2-Ethylhexyl) phthalate N.D. N.D. N.D.-120 N.D. N.D.-1900 N.D. -- --

4-Chloro-3-methyl phenol N.D. N.D.-660 N.D. N.D. N.D. N.D. -- --

Chrysene N.D.-29,000 N.D.-230 N.D.-11,000 N.D. N.D.-690 N.D. -- --

Dibenz(a,h)anthracene N.D.-11,000 N.D. N.D.-2900 N.D. N.D. N.D. -- --

Dibenzofuran N.D.-400 N.D. N.D. N.D. N.D.-180 N.D. -- --

Semi-volatile Compounds

Ideno(1,2,3-c,d)-pyrene N.D.-15,000 N.D. N.D.-4200 N.D. N.D. N.D. -- --

4-Methyl-phenol N.D. N.D. N.D. N.D. N.D.-360 N.D. -- --

2-Methyl-naphthalene N.D.-520 N.D. N.D. N.D. N.D.-140 N.D. -- --

Naphthalene N.D.-1100 N.D. N.D. N.D. N.D.-100 N.D. -- --

Phenanthrene N.D.-14,000 N.D.-170 N.D.-4600 N.D. N.D.-1300 44 -- --

PCBs

Arochlor-1248 N.D. N.D. N.D. N.D. N.D.-210 N.D. 91 CREG

Arochlor-1254 N.D. N.D. N.D. N .D. N.D.-180 N.D. 91 CREG

-- = Data not available.
N.D. = Not detected.

Table 18. Inorganic chemicals in on- and off-site sediments, May 1989 to September 1990 (WW Engineering and Science, 1991).

Chemical Upstream Unnamed Tributary
(ppm) Background Marsh
(ppm) Downstream Unnamed Tributary
(ppm) On-Site Drainage Ditch
(ppm) On-site Depressions
(ppm) Woodland Landfill Pond
(ppm) Comparison Value
(ppm) Source of Comparison Value

Antimony N.D. N.D. N.D. N.D. N.D.-4.7 3.9-33.8 0.8 R_fD

Arsenic 4.1-6.8 4.4-8.0 2.9-13.3 N.D.-381 3.2-10.3 3.4-12.9 0.6 R_fD

Barium 48.3-124 116-150 23.7-104 66.5-2580 25.2-120 32.4-92.9 140 R_fD

Beryllium N.D.-0.65 0.60-0.83 N.D.-0.49 N.D.-0.29 N.D.-1.1 N.D.-0.36 0.16 R_fD

Cadmium N.D. N.D.-6.6 N.D. N.D. N.D.-5.2 N.D. 0.4 EMEG

Chromium 7.0-22.3 12.3-23.1 5.7-16.7 N.D.-16.1 10.9-33.4 4.7-8.8 10 R_fD

Lead 11.1-37.5 34.3-65.8 7.2-45.7 11.4-32.7 8.0-100 6.3-60.7 -- --

Manganese 280-722 97.1-764 192-477 250-1210 325-603 287-338 200 R_fD

Nickel 9.9-19.4 N.D.-24.8 5.7-19.9 22.6-82.6 12.4-49.7 8.0-22.1 -- --

Selenium N.D.-0.52 N.D.-1.5 N.D. N.D. N.D. N.D.-2.2 40 R_fD

Vanadium 16.9-28.1 21.2-35.3 10.6-24.3 9.1-69.9 14.7-41.7 16.4-29.6 -- --

-- = Data not available.
N.D. = Not detected.

Table 19. Inorganic chemicals in off-site private wells, September to October 1990 (tri_p3.html#WW Engineering and Science. 1991a.">WW Engineering and Science, 1991).

Chemical Background Sand and Gravel Wells
(ppb) Non-Background Sand and Gravel Wells
(ppb) Background Bedrock Wells
(ppb) Non-Background Bedrock Wells
(ppb) Unknown Aquifer Wells
(ppb) Comparison Value
(ppb) Source of Comparison Value

Arsenic N.D. N.D. N.D. N.D.-28.4 N.D.-1.2 3 R_fD

Beryllium -- N.D.-2 -- N.D. N.D. 0.0081 CREG

Lead N.D. N.D.-15.3 N.D. N.D.-37.1 N.D.-4.2 15 A MCL

Nitrate/ Nitrite 400-11,900 N.D.-3970 N.D.-400 N.D. N.D. 10,000 MCL

Thallium -- N.D.-2.9 -- N.D.-1.6 N.D. 0.4 LTHA

-- = Data not available.
N.D. = Not detected.
A = Action level for drinking water (USEPA)

Table 20. Complete and potential exposure pathways at the Tri-County and Elgin Landfills.

A. Complete Pathways

Source of Contamination Environmental Transport Medium Point of Exposure Route of Exposure Exposed Population Time

Landfill wastes Groundwater Buildings with on-site private wells Inhalation
Ingestion
Dermal contact On-site workers Past
Present
Future

Landfill wastes Groundwater Off-site private wells Ingestion
Inhalation
Dermal Contact Off-site workers
Off-site residents Past
Present
Future

Landfill wastes Soil On-site Ingestion
Dermal contact On-site workers Past Present Future

Non Site-related Contamination (source unknown) Groundwater Off-site private wells
Users of Valley View municipal water supply Ingestion
Inhalation
Dermal contact Off-site workers
Off-site residents Past
Present
Future

B. Potential Pathways

Source of Contamination Environmental Transport Medium Point of Exposure Route of Exposure Exposed Population Time

Landfill wastes Air following transport on-site in:
Leachate
Sediments
Soil gas
Surface soil
Surface water On-site (including Prairie Path) Inhalation
Dermal contact
Ingestion On-site workers
Trespassers
Prairie Path users Past
Present
Future

Landfill wastes Air following transport in:
On-site: Leachate,
Sediments,
Soil gas
On- or Off-site: Surface water
Surface soil Off-site:
Residences
Businesses
Prairie Path Inhalation
Dermal contact
Ingestion Off-site workers
Off-site residents
Prairie Path users Past
Present
Future

Landfill wastes Groundwater Off-site:
Private wells
Municipal wells Ingestion
Inhalation
Dermal contact Off-site residents
Off-site Workers Future

Landfill wastes Surface soil Off-site Ingestion
Dermal contact Off-site residents
Off-site Workers Past
Present
Future

Landfill wastes On-site: Sediments
Surface water On-site:
Depressions
Drainage ditch Ingestion
Dermal contact Trespassers
On-site workers Past
Present
Future

Landfill wastes Off-site:
Sediments
Surface water Unnamed tributary
Marsh Ingestion
Dermal contact Children
Off-site workers Past
Present
Future

APPENDIX C. PUBLIC COMMENTS

PUBLIC COMMENTS

A copy of the Draft Public Health Assessment for the Tri-County and Elgin Landfills was available for public review and comment at the Gail Borden Public Library at 200 North Grove in Elgin, Illinois for the period starting September 5, 1994, and ending October 4, 1994. No public comments were received.

Table of Contents

Agency for Toxic Substances and Disease Registry, 1825 Century Blvd, Atlanta, GA 30345
Contact CDC: 800-232-4636 / TTY: 888-232-6348

Department of Health and Human Services

Chemical	Background Monitoring Wells (ppb)	Non- Background Monitoring Wells (ppb)	Comparison Value (ppb)	Source of Comparison Value
Volatile Compounds
Benzene	N.D.	N.D.-27	1.2	CREG
2-Butanone	N.D.	N.D.-81,000	200	LTHA
Chloroethane	N.D.	N.D.-74	--	--
1,1-Dichloroethane	N.D.	N.D.-16	--	--
1,2-Dichloroethene	N.D.	N.D.-180	70	LTHA
2-Hexanone	N.D.	N.D.-70	--	--
Tetrachloroethene	N.D.	N.D.-13	0.7	CREG
Trichloroethene	N.D.	N.D.-24	3	CREG
Vinyl Chloride	N.D.	N.D.-33	0.2	EMEG
Semi-volatile Compounds
bis(2-Chloroethyl) ether	N.D.	N.D.-8	0.32	CREG
bis(2-Ethylhexyl) phthalate	N.D.	N.D.-98	2.5	CREG
Dibenzofuran	N.D.	N.D.-5	--	--
2-Methylnaphthalene	N.D.	N.D.-5	--	--
4-Methylphenol	N.D.	N.D.-73	--	--
Naphthalene	N.D.	N.D.-23	20	LTHA
Pentachlorophenol	N.D.	N.D.-9	0.29	CREG
Pesticides
Aldrin	N.D.	N.D.-0.5	0.0021	CREG

Chemical	Background Monitoring Wells (ppb)	Non-Background Monitoring Wells (ppb)	Comparison Value (ppb)	Source of Comparison Value
Antimony	N.D.	N.D.-42	3	LTHA
Arsenic	N.D.-1.4	N.D.-53.7	3	R_fD
Barium	38.6-116	N.D.-1660	700	R_fD
Beryllium	N.D.-0.5	N.D.-0.7	0.0081	CREG
Cadmium	N.D.	N.D.-4.6	2	EMEG
Lead	N.D.	N.D.-213	--	--
Manganese	N.D.-228	N.D.-12,000	1000	R_fD
Mercury	N.D.-0.79	N.D.-2.3	2	LTHA
Nickel	N.D.-6.0	N.D.-168	100	LTHA
Thallium	N.D.	N.D.-13.4	0.4	LTHA
Vanadium	N.D.	N.D.-20.3	20	LTHA

Chemical	Background Monitoring Wells (ppb)	Non-Background Monitoring Wells (ppb)	Comparison Value (ppb)	Source of Comparison Value
Volatile Compounds
Benzene	N.D.	N.D.-10	1.2	CREG
Chloroethane	N.D.	N.D.-40	--	--
1,1-Dichloroethane	N.D.	N.D.-16	--	--
1,1,1-Trichloroethane	N.D.-5	N.D.-5	--	--
Vinyl chloride	N.D.	5	0.2	EMEG
Semi-volatile Organic Compounds
bis (2-Ethylhexyl) phthalate	N.D.	N.D.-110	2.5	CREG

Chemical	Sand and Gravel Wells (ppb)	Bedrock^a Wells (ppb)	Unknown Aquifer Wells (ppb)	Comparison Value (ppb)	Source of Comparison Value
Volatile Compounds
Benzene	N.D.	N.D.-3	N.D.	1.2	CREG
Bromodichloromethane	N.D.-2	N.D.	N.D.	0.27	CREG
Chloroethane	N.D.	0.6-4	N.D.	--	--
Chloroform	N.D.-12	N.D.	N.D.	5.7	CREG
Dibromochloromethane	N.D.-2	N.D.	N.D.	0.42	CREG
1,1-Dichloroethane	N.D.	N.D.-2	N.D.	--	--
1,2-Dichloroethane	N.D.	0.8-2	N.D.	0.38	CREG
Semi-volatile Organic Compounds
bis(2-Ethylhexyl) phthalate	N.D.-7	N.D.	N.D.-2^a	4	MCL

Chemical	Background Bedrock Wells (ppb)	Non-Background Bedrock Wells (ppb)	Unknown Aquifer Wells (ppb)	Comparison Value (ppb)	Source of Comparison Value
Antimony	--	N.D.	N.D.-3.2	3	LTHA
Beryllium	--	N.D.	N.D.	0.0081	CREG
Chromium	N.D.	N.D.-409	N.D.	50	R_fD
Lead	N.D.	N.D.-1.0	N.D.-1.1	15 A	MCL
Nickel	N.D.	N.D.-146	N.D.	100	LTHA
Thallium	--	N.D.-1.0	1.2-2	0.4	LTHA

Chemical	Background (ppb)	On-site (ppb)	Comparison Value (ppb)	Source of Comparison Value
Semi-volatile compounds
Acenaphthalene	N.D.	N.D.-78	--	--
Benz(a)anthracene	N.D.	N.D.-1500	160	CREG
Benzo(b)fluoranthene	N.D.	N.D.-2300	--	--
Benzo(k)fluoranthene	N.D.	N.D.-2300	--	--
Benzo(g,h,i)perylene	N.D.	N.D.-680	--	--
Benzo(a)pyrene	N.D.	N.D.-1300	--	--
Benzyl alcohol	N.D.	N.D-170	--	--
bis(2-Ethylhexyl) phthalate	N.D.-110	N.D.-4400	50	CREG
Chrysene	N.D.	N.D.-1600	--	--
Dibenz(a,h)anthracene	N.D.	N.D.-250	--	--
Dibenzofuran	N.D.	N.D.-150	--	--
1,4-Dichlorobenzene	N.D.	N.D.-650	--	--
Ideno(1,2,3-c,d)pyrene	N.D.	N.D.-600	--	--
2-Methylnaphthalene	N.D.	N.D.-420	--	--
4-Methylphenol	N.D.	N.D.-780	--	--
Naphthalene	N.D.	N.D.-300	--	--
N-Nitroso-di-propylamine	N.D.	N.D.-120	100	CREG
Phenanthrene	N.D.	N.D.-2900	--	--
1,2,4-Trichlorobenzene	N.D.	N.D.-58	--	--
2,4,5-Trichlorophenol	N.D.	N.D.-49	--	--

Chemical	Background (ppm)	On-site (ppm)	Comparison Value (ppm)	Source of Comparison Value
Antimony	N.D.	N.D.-10.5	0.8	R_fD
Arsenic	4-5.4	2.4-30.3	0.6	R_fD
Barium	140-174	18.2-275	140	R_fD
Beryllium	N.D.-0.43	N.D.-1.3	0.16	CREG
Cadmium	N.D.	N.D.-2.0	0.4	EMEG
Chromium	13.2-20.4	1.4-31.5	10	R_fD
Lead	14.5-32.9	6.4-179	--	--
Manganese	636-1100	197-2040	200	R_fD
Mercury	N.D.	N.D.-0.28	--	--
Nickel	11.6-18.9	5.3-45.9	40	R_fD
Thallium	N.D.-0.44	N.D.-0.40	--	--
Vanadium	26.6-37.3	12.2-41.8	20	LTHA

Chemical	Background (ppb)	0.5-2.5 Feet (ppb)	2.5-5 Feet (ppb)	5-10 Feet (ppb)	13-25 Feet (ppb)	27.5-40 Feet (ppb)	Comparison Value (ppb)	Comparison Value Source
Volatile compounds
2-Butanone	N.D.	N.D.	N.D.	N.D.	N.D.	N.D.- 130	--	--
4-Methyl-2-pentanone	N.D.	N.D.	N.D.	N.D.	N.D.	N.D.-64	--	--
Trichloroethene	N.D.	N.D.-1	N.D.	N.D.	N.D.-2	N.D.-10	--	--
Semi-volatile compounds
Benz(a)anthracene	N.D.	N.D.	N.D.- 440	N.D.	N.D.	N.D.	160	CREG
Benzo(b)fluoranthene	N.D.	N.D.	N.D.-440	N.D.	N.D.	N.D.	--	--
Benzo(k)fluoranthene	N.D.	N.D.	N.D.-440	N.D.	N.D.	N.D.	--	--
Benzo(g,h,i)perylene	N.D.	N.D.	N.D.-87	N.D.	N.D.	N.D.	--	--
Benzo(a)pyrene	N.D.	N.D.	N.D.-110	N.D.	N.D.	N.D.	--	--
Benzoic acid	N.D.	N.D.-110	N.D.	N.D.	N.D.	N.D.	--	--
bis(2-Ethyl-hexyl)phthalate	N.D.	N.D.	N.D.-100	N.D.-120	N.D.-110	N.D.-590	CREG
Chrysene	N.D.	N.D.-73	N.D.-350	N.D.	N.D.	N.D.	--	--
N-Nitroso-diphenylamine	N.D.-110	N.D.	N.D.	N.D.	N.D.	N.D.	100	EMEG
Phenanthrene	N.D.-52	N.D.-120	N.D.-160	N.D.	N.D.	N.D.	--	--
Pesticides
beta-Benzene hexachloride	N.D.	N.D.	N.D.	N.D.-56	N.D.	N.D.	0.39	CREG

Chemical	Background (ppm)	0.5-2.5 Feet (ppm)	2.5 - 5 Feet (ppm)	5 - 10 Feet (ppm)	13-25 Feet (ppm)	27.5-40 Feet (ppm)	Comparison Value (ppm)	Source of Comparison Value
Antimony	N.D.	N.D.	N.D.	N.D.- 18.9	N.D.- 19.3	N.D.- 21.4	0.8	R_fD
Arsenic	2.7-9.6	2.3-8.7	1.8-17.4	1.9-8.0	1.7-7.9	1.3-7.9	0.6	R_fD
Barium	4.8-174	44.8-118	32.6-133	N.D.-104	5.3- 49.8	N.D.- 53.9	140	R_fD
Beryllium	N.D.-0.75	N.D.-0.38	N.D.-0.46	N.D.-1.1	N.D.-0.11	N.D.-0.44	0.16	CREG
Cadmium	N.D.	N.D.-2.3	N.D.	N.D.-1.8	N.D.-0.73	N.D.	0.4	EMEG
Chromium	3.8-27.6	7.9-19.8	N.D.-22.3	3.3-14.7	N.D.-17.9	2.2-24.2	10	R_fD
Lead	3.3-32.9	4.9-29.9	3.4-46.5	2.4-10.5	2.6-5.8	2.3-11.1	--	--
Manganese	244-1100	292-656	101-787	142-1150	195-1030	180-424	200	R_fD
Mercury	N.D.	N.D.	N.D.	N.D.	N.D.-0.108	N.D.	--	--
Thallium	N.D.-0.44	N.D.-1.8	N.D.-0.23	N.D.	N.D.	N.D.-0.26	--	--
Vanadium	4.1-4.54	17.1-31.8	11.3-41.1	5.5-24.9	6.0-12.9	N.D.-34.8	--	--

Chemical	On-site (ppb)	Comparison Value (ppb)	Source of Comparison Value
Volatile Compounds
Chloroethane	N.D.-14	--	--
1,1-Dichloroethane	N.D.-280	--	--
1,1,1-Trichloroethane	N.D.-14	--	--
Trichloroethene	N.D.-44	--	--
Semi-Volatile Compounds
Acenaphthalene	N.D.-120	--	--
Benzo(k)fluoranthene	N.D.-170	--	--
bis(2-Ethylhexyl) phthalate	N.D.-1400	50	CREG
Chrysene	N.D.-89	--	--
Diethyl phthalate	N.D.-100	--	--
2-Methylnaphthalene	N.D.-230	--	--
4-Methylphenol	N.D.-730	--	--
Naphthalene	N.D.-220	--	--
Phenanthrene	N.D.-340	--	--
PCBs		--	--
Arochlor-1242	N.D.-3000	91	CREG
Arochlor-1254	N.D.-610	91	CREG

Chemical	On-site (ppm)	Comparison Value (ppm)	Source of Comparison Value
Antimony	N.D.-58.5	0.8	R_fD
Arsenic	1.9-15.6	0.6	R_fD
Barium	49-420	140	R_fD
Beryllium	0.51-1.00	0.16	CREG
Cadmium	N.D.-12.6	0.4	EMEG
Chromium	8.9-57.8	10	R_fD
Lead	8.1-2190	--	--
Manganese	103-1480	200	R_fD
Mercury	N.D.-0.38	--	--
Nickel	7.5-263	40	R_fD
Vanadium	11.5-24.9	--	--

Chemical	Upstream Unnamed Tributary (ppb)	Downstream Unnamed Tributary (ppb)	On-site Drainage Ditch (ppb)	On-site Depressions (ppb)	Woodland Landfill Pond (ppb)	Comparison Value (ppb)	Source of Comparison Value
Semi-volatile Compounds
bis(2-ethyl-hexyl) phthalate	N.D.	N.D.	N.D.	N.D.-24	N.D.	4	MCL
Hexachloroethane	N.D.	N.D.	N.D.	N.D.	N.D.-10	2.5	CREG
4-Methylphenol	N.D.	4	N.D.	N.D.-3	N.D.	--	--

Chemical	Upstream Unnamed Tributary (ppm)	Downstream Unnamed Tributary (ppm)	On-site Drainage Ditch (ppm)	On-site Depressions (ppm)	Woodland Landfill Pond (ppm)	Comparison Value (ppm)	Source of Comparison Value
Arsenic	N.D.	N.D.	N.D.-9.1	N.D.-66.7	1.8-2.0	3	R_fD
Barium	48.4-61.4	48-57.6	900-18,100	19.6-120	67.2-73.8	700	R_fD
Beryllium	N.D.	N.D.	N.D.-5.0	N.D.-0.7	N.D.	0.0081	CREG
Lead	N.D.	N.D.	N.D.-18.6	N.D.-11.2	N.D.	15 A	MCL
Manganese	17.1-62.9	16.3-82.8	606-3430	26.1-910	88.8-133	1000	R_fD
Nickel	N.D.	N.D.	64.5-297	N.D.-24.1	N.D.-17.1	100	LTHA
Vanadium	N.D.	N.D.	N.D.-191	N.D.-20.1	N.D.-13.5	20	LTHA

Chemical	Upstream Unnamed Tributary (ppb)	Background Marsh (ppb)	Downstream Unnamed Tributary (ppb)	On-site Drainage Ditch (ppb)	On-site Depressions (ppb)	Woodland landfill Pond (ppm)	Comparison Value (ppb)	Source of Comparison Value
Volatile Compounds
2-Butanone	N.D.-59	N.D.	N.D.-19	N.D.	N.D.	--	--	--
Trichloroethene	N.D.	N.D.-5	N.D.	N.D.	N.D.	--	--	--
Semi-volatile Compounds
Benz(a)anthracene	N.D.-33,000	N.D.-160	N.D.-13,000	N.D.	N.D.-650	N.D.	160	CREG
Benzo(b)fluoranthene	N.D.-30,000	N.D.-160	N.D.-10,000	N.D.	N.D.-4800	N.D.	--	--
Benzo(k)fluoranthene	N.D.-21,000	N.D.	N.D.-9700	N.D.	N.D.-620	N.D.	--	--
Benzo(g,h,i)perylene	N.D.-15,000	N.D.	N.D.-10,000	N.D.	N.D.-530	N.D.	--	--
bis(2-Ethylhexyl) phthalate	N.D.	N.D.	N.D.-120	N.D.	N.D.-1900	N.D.	--	--
4-Chloro-3-methyl phenol	N.D.	N.D.-660	N.D.	N.D.	N.D.	N.D.	--	--
Chrysene	N.D.-29,000	N.D.-230	N.D.-11,000	N.D.	N.D.-690	N.D.	--	--
Dibenz(a,h)anthracene	N.D.-11,000	N.D.	N.D.-2900	N.D.	N.D.	N.D.	--	--
Dibenzofuran	N.D.-400	N.D.	N.D.	N.D.	N.D.-180	N.D.	--	--
Semi-volatile Compounds
Ideno(1,2,3-c,d)-pyrene	N.D.-15,000	N.D.	N.D.-4200	N.D.	N.D.	N.D.	--	--
4-Methyl-phenol	N.D.	N.D.	N.D.	N.D.	N.D.-360	N.D.	--	--
2-Methyl-naphthalene	N.D.-520	N.D.	N.D.	N.D.	N.D.-140	N.D.	--	--
Naphthalene	N.D.-1100	N.D.	N.D.	N.D.	N.D.-100	N.D.	--	--
Phenanthrene	N.D.-14,000	N.D.-170	N.D.-4600	N.D.	N.D.-1300	44	--	--
PCBs
Arochlor-1248	N.D.	N.D.	N.D.	N.D.	N.D.-210	N.D.	91	CREG
Arochlor-1254	N.D.	N.D.	N.D.	N .D.	N.D.-180	N.D.	91	CREG

Chemical	Upstream Unnamed Tributary (ppm)	Background Marsh (ppm)	Downstream Unnamed Tributary (ppm)	On-Site Drainage Ditch (ppm)	On-site Depressions (ppm)	Woodland Landfill Pond (ppm)	Comparison Value (ppm)	Source of Comparison Value
Antimony	N.D.	N.D.	N.D.	N.D.	N.D.-4.7	3.9-33.8	0.8	R_fD
Arsenic	4.1-6.8	4.4-8.0	2.9-13.3	N.D.-381	3.2-10.3	3.4-12.9	0.6	R_fD
Barium	48.3-124	116-150	23.7-104	66.5-2580	25.2-120	32.4-92.9	140	R_fD
Beryllium	N.D.-0.65	0.60-0.83	N.D.-0.49	N.D.-0.29	N.D.-1.1	N.D.-0.36	0.16	R_fD
Cadmium	N.D.	N.D.-6.6	N.D.	N.D.	N.D.-5.2	N.D.	0.4	EMEG
Chromium	7.0-22.3	12.3-23.1	5.7-16.7	N.D.-16.1	10.9-33.4	4.7-8.8	10	R_fD
Lead	11.1-37.5	34.3-65.8	7.2-45.7	11.4-32.7	8.0-100	6.3-60.7	--	--
Manganese	280-722	97.1-764	192-477	250-1210	325-603	287-338	200	R_fD
Nickel	9.9-19.4	N.D.-24.8	5.7-19.9	22.6-82.6	12.4-49.7	8.0-22.1	--	--
Selenium	N.D.-0.52	N.D.-1.5	N.D.	N.D.	N.D.	N.D.-2.2	40	R_fD
Vanadium	16.9-28.1	21.2-35.3	10.6-24.3	9.1-69.9	14.7-41.7	16.4-29.6	--	--

Chemical	Background Sand and Gravel Wells (ppb)	Non-Background Sand and Gravel Wells (ppb)	Background Bedrock Wells (ppb)	Non-Background Bedrock Wells (ppb)	Unknown Aquifer Wells (ppb)	Comparison Value (ppb)	Source of Comparison Value
Arsenic	N.D.	N.D.	N.D.	N.D.-28.4	N.D.-1.2	3	R_fD
Beryllium	--	N.D.-2	--	N.D.	N.D.	0.0081	CREG
Lead	N.D.	N.D.-15.3	N.D.	N.D.-37.1	N.D.-4.2	15 A	MCL
Nitrate/ Nitrite	400-11,900	N.D.-3970	N.D.-400	N.D.	N.D.	10,000	MCL
Thallium	--	N.D.-2.9	--	N.D.-1.6	N.D.	0.4	LTHA

Source of Contamination	Environmental Transport Medium	Point of Exposure	Route of Exposure	Exposed Population	Time
Landfill wastes	Groundwater	Buildings with on-site private wells	Inhalation Ingestion Dermal contact	On-site workers	Past Present Future
Landfill wastes	Groundwater	Off-site private wells	Ingestion Inhalation Dermal Contact	Off-site workers Off-site residents	Past Present Future
Landfill wastes	Soil	On-site	Ingestion Dermal contact	On-site workers	Past Present Future
Non Site-related Contamination (source unknown)	Groundwater	Off-site private wells Users of Valley View municipal water supply	Ingestion Inhalation Dermal contact	Off-site workers Off-site residents	Past Present Future