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PUBLIC HEALTH ASSESSMENT

DUPAGE COUNTY LANDFILL (BLACKWELL FOREST PRESERVE)
WARRENVILLE, DUPAGE COUNTY, ILLINOIS


APPENDIX A. FIGURES

Figure 1
Figure 1. The location of the DuPage County Landfill

Figure 2
Figure 2. The DuPage County Landfill site

Figure 3a
Figure 3a. Private wells around the DuPage County Landfill

Figure 3b
Figure 3b. Private wells around the DuPage County Landfill

Figure 4
Figure 4. Municipal wells around the DuPage County Landfill

Figure 5
Figure 5. Landfill gas and leachate sampling locations

Figure 6
Figure 6. Shallow monitoring wells around the DuPage County Landfill

Figure 7
Figure 7. Deep monitoring wells around the DuPage County Landfill

Figure 8
Figure 8. Surface soil, subsurface soil, sediment, and surface water sampling locations

Figure 9
Figure 9. Off-site background sediment and surface water sampling locations

Figure 10
Figure 10. Topographic map of the DuPage County Landfill

Figure 11a
Figure 11a. Geologic cross sections of the site

Figure 11b
Figure 11b. Geologic cross section of the site

Figure 11c
Figure 11c. Geologic cross section of the site

Figure 11d
Figure 11d. Geologic cross section of the site

Figure 11e
Figure 11e. Geologic cross section of the site

Figure 11f
Figure 11f. Geologic cross section of the site

Figure 12a
Figure 12a. Water Table in the Glacial Aquifer, April 1985

Figure 12b
Figure 12b. Water Table in the Glacial Aquifer, October 1985

Figure 12c
Figure 12c. Groundwater flow in the glacial till aquifer, September 1991

Figure 12d
Figure 12d. Groundwater flow in the glacial till aquifer, April 9, 1992

Figure 13a
Figure 13a. Groundwater flow in the shallow dolomite aquifer, September 13, 1991

Figure 13b
Figure 13b. Groundwater flow in the shallow dolomite aquifer, April 9, 1992


APPENDIX B. TABLES


Table 1. Concentrations of volatile organic compounds in landfill gas collected from leachate vents, December 19, 1991 to June 30, 1992 (Warzyn Engineering, Inc., 1992).

Chemical
Concentration
(ppb)
Acetone
N.D.-2,800
Benzene
N.D.-2,700
2-Butanone
N.D.-9,200
Chlorobenzene
N.D.-160
Chloromethane
N.D.-9,300
1,4-Dichlorobenzene
N.D.-7,300
1,1-Dichloroethane
N.D.-2,600
1,2-Dichloroethane
N.D.-18
1,1-Dichloroethene
N.D.-300
cis-1,2-Dichloroethene
N.D.-44,000
trans-1,2-Dichloroethene
N.D.-2,300
1,2-Dichloropropane
N.D.-1,400
Ethylbenzene
N.D.-7,900
4-Ethyl toluene
N.D.-14,000
2-Hexanone
N.D.-11
Methylene chloride
N.D.-17,000
4-Methyl-2-pentanone
N.D.-6,000
Tetrachloroethene
N.D.-17,000
Toluene
N.D.-92,000
Trichloroethene
N.D.-28,000
1,2,4-Trimethylbenzene
N.D.-4,300
1,3,5-Trimethylbenzene
N.D.-1,900
Vinyl chloride
N.D.-21,000
Xylenes
N.D.-17,000
          N.D. = Not detected
          ppb = Parts per billion.


Table 2. Range of organic contaminant concentrations in on-site leachate samples - DuPage County Landfill, September 19 to 20, 1991 (Warzyn Engineering, Inc., 1992).

Chemical
Concentration
(ppb)
Volatile Organic Compounds
Acetone
N.D.-10,000
Benzene
160
2-Butanone
N.D.-17,000
1,1-Dichloroethane
N.D.-180
1,2-Dichloroethene
N.D.-480
4-Methyl-2- pentanone
N.D.-1100
Tetrachloroethene
N.D.-220
Toluene
N.D.-3200
Trichloroethene
N.D.-720
Vinyl chloride
N.D.-22
Semi-volatile Organic Compounds
bis(2-Chloroethyl) ether
N.D.-5
4-Chloro-3- methylphenol
N.D.-34
Dibenzofuran
N.D.-1
1,4-Dichlorobenzene
N.D.-940
Isophorone
N.D.-12
2-Methylnaphthalene
N.D.-8
4-Methylphenol
N.D.-17,000
Naphthalene
N.D.-960
Pentachlorophenol
N.D.-3
Phenanthrene
N.D.-1
          N.D. = Not detected
          ppb = Parts per billion.


Table 3. Range of inorganic concentrations in on-site leachate samples - DuPage County Landfill, September 19 to 20, 1991 (Warzyn Engineering, Inc., 1992).

Chemical
Concentration
Range
(ppb)
Ammonia
100-464,000
Arsenic
N.D.-45.7
Cadmium
N.D.-150
Chromium
N.D.-144
Lead
N.D.-482
Manganese
N.D.-59,800
Mercury
N.D.-4.7
Nickel
N.D.-501
Thallium
N.D.-139
Vanadium
N.D.-442
Zinc
N.D.-126,000
          N.D. = Not detected
          ppb = Parts per billion.


Table 4. Chemicals of concern in on-site shallow monitoring wells at the DuPage County Landfill, September 16, 1991 to January 30, 1992 (Warzyn Engineering, Inc., 1992).



Chemical

Concentration(ppb)
Comparison
Value(ppb)
Source of
Comparison Value
Volatile Organic Compounds


Benzene
N.D.-2
1
CREG
Chloroethane
N.D.-15
--
--
1,1-Dichloroethane
N.D.-8
*
--
1,2-Dichloroethene
N.D.-120
70
LTHA
Tetrachloroethene
N.D.-4
0.7; 100
CREG; RMEG
Trichloroethene
N.D.-18
3
CREG
Vinyl Chloride
N.D.-31
0.2; *
Chronic EMEG
Semi-Volatile Organic Compounds


Di-n-octylphthalate
N.D.-4
--
--
Inorganic Compounds


Ammonia
N.D.-28,100
3,000
Intermediate EMEG
Arsenic
N.D.-18.4
0.02; 3
CREG; Chronic EMEG
Manganese
N.D.-4,880
50
RMEG



Table 5. Chemicals of concern in deep monitoring wells, DuPage County Landfill, September 16, 1991 to January 30, 1992 (Warzyn Engineering, Inc., 1992).



Chemical

Concentration(ppb)
Comparison
Value(ppb)
Source of
Comparison Value
Volatile Organic Compounds


Benzene
N.D.-5
1
CREG
1,2-Dichloroethane
N.D.-3
0.4
CREG
Semi-Volatile Organic Compounds


Di-n-octyl phthalate
N.D.-3
--
--
Inorganic Compounds


Manganese
N.D.-107
50
RMEG
* = Suspected or known carcinogen, no slope factor available.
ppb = Parts per billion.
CREG = Cancer Risk Evaluation Guide.
LTHA = Lifetime Health Advisory.		 -- = Data not available.
N.D. = Not detected
EMEG = Environmental Media Evaluation Guide.
RMEG = Reference Dose Media Evaluation Guide.



Table 6. Chemicals of concern in surface and subsurface soil, September 24, 1991 to June 19, 1992 (Warzyn Engineering, Inc., 1992).

Chemical
Background
Soil
(ppm)
On-site
Surface
Soil (ppm)
On-site
Subsurface
Soil (ppm)
Comparison
Value
(ppm)
Source of
Comparison
Value
Volatile Organic Compounds




1,1,1-Trichloroethane
0.002
N.D.
N.D.
--
--
Semi-volatile Organic
Compounds




Benz(a)anthracene
N.D.-0.49
N.D.
N.D.
*
--
Benzo(b)fluoranthene
N.D.-1.40
N.D.
N.D.
*
--
Benzo(k)fluoranthene
N.D.-1.40
N.D.
N.D.
*
--
Benzo(g,h,i)perylene
N.D.-0.54
N.D.
N.D.
--
--
Benzo(a)pyrene
N.D.-0.51
N.D.
N.D.
0.1
CREG
Butylbenzylphthalate
N.D.-0.90
N.D.
N.D.
*; 400
RMEG
Carbazole
N.D.-0.62
N.D.
N.D.
--
--
Chrysene
N.D.-0.62
N.D.
N.D.
*
--
Dibenz(a,h)anthracene
N.D.-0.21
N.D.
N.D.
*
--
Indeno(1,2,3-c,d)pyrene
N.D.-0.58
N.D.
N.D.
*
--
Phenanthrene
N.D.-0.60
N.D.
N.D.
--
--
PCBs




Arochlor 1254
--
N.D.-0.56
N.D.
0.04
RMEG

* = Suspected or known carcinogen, no slope factor available.
-- = Data not available.
ppb = Parts per billion.
ppm = Parts per million.
CREG = Cancer Risk Evaluation Guide.
EMEG = Environmental Media Evaluation Guide.


Table 6, continued. Chemicals of concern in surface and subsurface soil, September 24, 1991 to June 19, 1992 (Warzyn Engineering, Inc., 1992).

Chemical
Background
Soil
(ppm)
On-site
Surface
Soil (ppm)
On-site
Subsurface
Soil (ppm)
Comparison
Value
(ppm)
Source of
Comparison
Value
Illinois Soil
Background
(ppm)1
Eastern U.S.
Background
(ppm)2
Inorganic Chemicals






Arsenic
4.2-7.4
4.7-6.4
5.4-7.0
0.5; 0.6
CREG; ChronEMEG
N.D.-24
N.D.-73
Barium
127-167
63.8-178
11.4-110
100
RMEG
N.D.-1720
10-1500
Cadmium
N.D.-9.7
N.D.-5.7
N.D.-5.7
1; *
Chronic EMEG
N.D.-8.2
--
Chromium
13.4-77.3
13.5-70.8
6.4-32.0
10; *
RMEG
N.D.-151
1-1000
Lead
13.9-38.7
9.9-36.7
6.2-20.6
*
--
4.7-647
N.D.-300
Manganese
300-1250
383-1570
309-560
10
RMEG
61.5-5510
N.D.-7000
Thallium
N.D.
N.D.
N.D.-0.68
--
--
0.02-2.8
--
Vanadium
22.7-43.4
20.7-39.0
N.D.-26.4
6
Intermediate
EMEG
N.D.-80
N.D.-300

* = Suspected or known carcinogen, no slope factor available.
-- = Data not available.
ppb = Parts per billion.
ppm = Parts per million.
N.D. = Not detected
CREG = Cancer Risk Evaluation Guide.
EMEG = Environmental Media Evaluation Guide.
RMEG = Reference Dose Media Evaluation Guide.
1IEPA, 1994.
2Shacklette and Boerngen, 1984.

Table 7. Concentrations of chemicals in on- and off-site (background) sediments, September 23 to 24 (all but Herrick Lake) and June 18 to 19, 1992 (Herrick Lake and Sand Lake only; Warzyn Engineering, Inc., 1992).

Chemical
Herrick Lake
Background
(ppm)
Silver Lake
Background
(ppm)
Silver Lake
(ppm)
Comparison
Value
(ppm)
Source of
Comparison Value
Volatile Organic
Compounds




1,1-Dichloroethane
N.D.
N.D.
N.D.
*
--
Vinyl Chloride
N.D.
N.D.
N.D.
0.04; *
EMEG
Semi-volatile
Organic Compounds




Benz(a)anthracene
N.D.-1.1
0.045
N.D.-0.73
*
--
Benzo(a)pyrene
N.D.-1.4
0.067
N.D.-0.79
0.1
CREG
Benzo(b)fluoranthene
N.D.-2.3
0.051
0.073-2.0
*
--
Benzo(k)fluoranthene
N.D.-2.3
0.084
0.06-2.0
*
--
Benzo(g,h,i)perylene
N.D.-0.79
N.D.
N.D.-4.4
--
--
Butylbenzyl phthalate
N.D.
N.D.
N.D.-0.077
*; 400
RMEG
Chrysene
N.D.-1.2
0.064
0.057-0.98
*
--
Dibenz(a,h) anthracene
N.D.
N.D.
N.D.-0.50
*
--
Indeno(1,2,3-c,d) pyrene
N.D.-0.74
N.D.
N.D.-0.55
*
--

* = Suspected or known carcinogen, no slope factor available.
-- = Data not available.
ppm = parts per million
ppb = Parts per billion.
N.D. = Not detected
CREG = Cancer Risk Evaluation Guide.
EMEG = Environmental Media Evaluation Guide.
LTHA = Lifetime Health Advisory.
RMEG = Reference Dose Media Evaluation Guide.


Table 7, continued. Concentrations of chemicals in on- and off-site (background) sediments, September 23 to 24 (all but Herrick Lake) and June 18 to 19, 1992 (Herrick Lake and Sand Lake only; Warzyn Engineering, Inc., 1992).

Chemical
Sand Pond
(ppm)
Pine Lake
(ppm)
Spring Brook
Upstream
(ppm)
Spring Brook
Downstream
(ppm)
Comparison
Value
(ppm)
Source of
Comparison Value
Volatile Organic
Compounds





1,1-Dichloroethane
N.D.-0.003
N.D.
N.D.
N.D.
*
--
Vinyl Chloride
N.D.-0.005
N.D.
N.D.
N.D.
0.04; *
EMEG
Semi-volatile
Organic Compounds





Benz(a)anthracene
N.D.
N.D.
N.D.
0.15
*
--
Benzo(a)pyrene
N.D.
N.D.
0.10
N.D.
0.1
CREG
Benzo(b)fluoranthene
N.D.
N.D.
0.19
0.44
*
--
Benzo(k)fluoranthene
N.D.
N.D.
0.19
0.44
*
--
Benzo(g,h,I)perylene
N.D.
N.D.
N.D.
N.D.
--
--
Butylbenzyl phthalate
N.D.
N.D.
N.D.
N.D.
*; 400
RMEG
Chrysene
N.D.
N.D.
0.08
0.21
*
--
Dibenz(a,h)anthracene
N.D.
N.D.
N.D.
N.D.
*
--
Indeno(1,2,3-c,d)
pyrene
N.D.
N.D.
N.D.
N.D.
*
--

* = Suspected or known carcinogen, no slope factor available.
-- = Data not available.
ppm = parts per million
ppb = Parts per billion.
N.D. = Not detected
CREG = Cancer Risk Evaluation Guide.
EMEG = Environmental Media Evaluation Guide.
LTHA = Lifetime Health Advisory.
RMEG = Reference Dose Media Evaluation Guide.


Table 7, continued. Concentrations of chemicals in on- and off-site (background) sediments, September 23 to 24 (all but Herrick Lake) and June 18 to 19, 1992 (Herrick Lake and Sand Lake only; Warzyn Engineering, Inc, 1992).

Chemical
Herrick Lake
Background
(ppm)
Silver Lake
Background
(ppm)
Silver Lake
(ppm)
Comparison
Value
(ppm)
Source of
Comparison Value
Illinois
Background
(ppm)1
Eastern U.S.
Background
(ppm)2
Inorganic Elements






Arsenic
5.2-14.3
3.6
4.8-5.5
0.5; 0.6
CREG; Chronic EMEG
N.D.-24
N.D.-73
Barium
17.0-74.6
16.5
58.3-100
100
RMEG
N.D.-1720
10-1500
Cadmium
1.5-4.7
N.D.
N.D.
1; *
Chronic EMEG
N.D.-8.2
--
Chromium
5.0-13.7
9
10.2-11.6
10; *
RMEG
N.D.-151
1-1000
Lead
16.2-40.1
10.7
11.3-24.1
*
--
4.7-647
N.D.-300
Manganese
189-515
390
338-589
10
RMEG
61.5-5590
N.D.-7000
Vanadium
N.D.-22.3
15
N.D.-21.0
6
Intermediate EMEG
N.D.-80
N.D.-300

* = Suspected or known carcinogen, no slope factor available.
-- = Data not available.
ppm = parts per million
ppb = Parts per billion.
N.D. = Not detected
CREG = Cancer Risk Evaluation Guide.
EMEG = Environmental Media Evaluation Guide.
LTHA = Lifetime Health Advisory.
RMEG = Reference Dose Media Evaluation Guide.
1IEPA, 1994.
2Shacklette and Boerngen, 1984.


Table 7, continued. Concentrations of chemicals in on- and off-site (background) sediments, September 23 to 24 (all but Herrick Lake) and June 18 to 19, 1992 (Herrick Lake and Sand Lake only; Warzyn Engineering, Inc., 1992).

Chemical
Sand Pond
(ppm)
Pine Lake
(ppm)
Spring Brook
Upstream
(ppm)
Spring Brook
Downstream
(ppm)
Comparison
Value
(ppm)
Source of
Comparison
Value
Illinois
Background
(ppm)1
Eastern U.S.
Background
(ppm)2
Inorganic Elements







Arsenic
3.3-3.7
9.4
1.1
5.1
0.5; 0.6
CREG;Chronic
EMEG
N.D.-24
N.D.-73
Barium
22.2-109
71.9
7.7
N.D.
100
RMEG
N.D.-1720
10-1500
Cadmium
N.D.
N.D.
N.D.
N.D.
1; *
Chronic EMEG
N.D.-8.2
--
Chromium
N.D.
5.8
5.7
17.8
10; *
RMEG
N.D.-151
1-1000
Lead
2.5-14.5
11.4
7.4
28.3
*
--
4.7-647
N.D.-300
Manganese
147-694
283
135
282
10
RMEG
61.5-5590
N.D.-7000
Vanadium
N.D.
N.D.
N.D.
N.D.
6
 		Intermediate
EMEG
N.D.-80
N.D.-300

* = Suspected or known carcinogen, no slope factor available.
-- = Data not available.
ppm = parts per million
ppb = Parts per billion.
N.D. = Not detected
CREG = Cancer Risk Evaluation Guide.
EMEG = Environmental Media Evaluation Guide.
LTHA = Lifetime Health Advisory.
RMEG = Reference Dose Media Evaluation Guide.
1Shacklette and Boerngen, 1984.
2IEPA, 1994.


Table 8. Concentrations of chemicals in on- and off-site surface water, September 23-24 and June 19, 1992 (Herrick Lake only; Warzyn Engineering, Inc., 1992).

Chemical
Herrick Lake
Background
(ppb)
Silver Lake
Background
(ppb)
Silver Lake
(ppb)
Comparison
Value
(ppb)
Source of
Comparison Value
Arsenic
3-4
2.1
2.9-3.6
0.02; 3
CREG; Chronic EMEG
Lead
N.D.
N.D.
N.D.-5.3
15; *
MCL-Action level
Manganese
45-176
N.D.
32-72
50
RMEG
Nitrate + Nitrite
N.D.
N.D.
N.D.
10,000
MCL


Chemical
Sand Pond
(ppb)
Pine Lake
(ppb)
Spring Brook
Upstream
(ppb)
Spring Brook
Downstream
(ppb)
Comparison
Value
(ppb)

Source of
Comparison Value

Arsenic
N.D.
2.8
N.D.
2.0
0.02; 3
CREG; Chronic EMEG
Lead
N.D.
N.D.
6.8
10.9
15; *
MCL-Action level
Manganese
49-66
23
25
43
50
RMEG
Nitrate + Nitrite
N.D.
N.D.
15,500
14,800
10,000
MCL

* = Suspected or known carcinogen, no slope factor available.
-- = Data not available.
ppb = Parts per billion.
CREG = Cancer Risk Evaluation Guide.
N.D. = Not detected
EMEG = Environmental Media Evaluation Guide.
LTHA = Lifetime Health Advisory.
RMEG = Reference Dose Media Evaluation Guide.


Table 9. Concentrations of chemicals in off-site private wells (Warzyn Engineering, Inc., 1992).

Chemical
Background
Wells
(ppb)
Downgradient
Wells
(ppb)
Comparison
Value
(ppb)
Source of
Comparison
Value
Volatile Organic
Compounds



Benzene
N.D.
N.D.-1
1
CREG
1,1-Dichloroethane
N.D.-0.7
N.D.-1
*
--
1,1-Dichloroethene
N.D.
N.D.-0.7
0.06; 90
CREG; Chronic EMEG
Pesticides



Dieldrin
N.D.
N.D.-0.01
0.002; 0.5
CREG; Chronic EMEG
Endrin aldehyde
N.D.
N.D.-0.0003
--
--
Inorganic Compounds



Antimony
N.D.
N.D.-8.2
4
RMEG
Arsenic
N.D.-4.5
N.D.-14.2
0.02; 3
CREG; Chronic EMEG
Lead
N.D.-4.7
N.D.-86.4
15; *
MCL-Action level
Manganese
N.D.-39
N.D.-96
50
RMEG

* = Suspected or known carcinogen, no slope factor available.
-- = Data not available.
ppb = Parts per billion.
N.D. = Not detected
CREG = Cancer Risk Evaluation Guide.
EMEG = Environmental Media Evaluation Guide.
LTHA = Lifetime Health Advisory.
RMEG = Reference Dose Media Evaluation Guide.


Table 10. Sources of contamination, environmental transport pathways, exposure pathways, and possible receptors.

A. Completed Pathways

Source of
Contamination
Environmental
Transport
Pathways
Exposure
Pathways
Possible
Receptors
Time
DuPage County
Landfill
Air
Dermal contact,
Inhalation,
Ingestion (dust)
 On- and off-site workers, nearby
residents, park users
(estimated number of potential
receptors = 50,000)
Past, Present,
Future
DuPage County
Landfill
Sediments
Dermal contact,
Ingestion
 Park users
(estimated number of potential
receptors = 1,000)
Past
DuPage County
Landfill
Sediments
Dermal contact,
Ingestion
 On-site workers
(estimated number of potential
receptors = 50)
Past, Present,
Future
DuPage County
Landfill
Surface Water
Dermal contact,
Ingestion
 Park users
(estimated number of potential
receptors = 1,000)
Past
DuPage County
Landfill
Surface Water
Dermal contact,
Ingestion
 On-site workers
(estimated number of potential
receptors = 50)
Past, Present,
Future
DuPage County
Landfill
Groundwater
Dermal contact,
Inhalation,
Ingestion
 Users of private wells & municipal
water supply
(estimated number of potential
receptors = 12,000)
Future


Table 10, continued. Sources of contamination, environmental transport pathways, exposure pathways, and possible receptors.

B. Potential Pathways

Source of
Contamination
Environmental
Transport
Pathways
Exposure
Pathways
Possible
Receptors
Time
DuPage County
Landfill
Sediments
Dermal contact,
Ingestion
Park users
Present, Future
DuPage County
Landfill
Surface water
Dermal contact,
Ingestion
Park users
Present, Future
DuPage County
Landfill
Soil
Dermal contact,
ingestion
Park users,
On-site workers
Past, Present,
Future
DuPage County
Landfill
Biota
Ingestion
Anglers
Future

Table of Contents


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