PUBLIC HEALTH ASSESSMENT
ADAMS COUNTY QUINCY LANDFILL 2 & 3
QUINCY, ADAMS COUNTY, ILLINOIS
Table 1. 1997-1998 On-site Groundwater Quarterly Samples for Manganese [4]
(comparison value for manganese - RMEG: child 50 ppb, adult 200 ppb)1
| Well | Spring (ppb) |
Summer (ppb) |
Fall (ppb) |
Winter (ppb) |
Depth (feet) |
| 1D | <10 | <10 | 430 | <5 | 89.5' |
| 2D | 4,800 | 2,700 | 2,700 | 2,000 | 18' |
| 3D | 1,100 | 1,100 | 7,100 | 880 | 26.5' |
| 4D | 3,800 | 3,800 | 3,300 | 4,500 | 33' |
| Q1S | <10 | <10 | 130 | <5 | 133' |
| Q2S | 42 | 49 | 670 | 41 | 29.9' |
| Q2D | 32 | 55 | 34 | 51 | 86.8' |
| Q3D | 4,300 | 3,800 | 3,500 | 3,600 | 46' |
| Q4D | 1,800 | 1,400 | 670 | 1,500 | 87.9' |
| 2U | <10 | <10 | 720 | 5 | 21' |
1RMEG -- reference
dose media evaluation guide (see Attachment 3).
ppb = parts per billion
Bold results indicate monitoring wells in areas of leachate
runoff.
Table 2. 1997-1998 On-site Groundwater Quarterly Samples
for Arsenic [4]
(comparison values for arsenic -- EMEG: child 3 ppb, adult 10 ppb; CREG: 0.02 ppb MCL: 50 ppb)1
| Well | Spring (ppb) |
Summer (ppb) |
Fall (ppb) |
Winter (ppb) |
Depth (feet) |
| Q2D | <1 | <1 | 4 | <1 | 86.8' |
| Q3D | 5 | <1 | 3 | <1 | 46' |
| Q4D | 5 | 4 | 3 | 1 | 87.9' |
| Q4S | <1 | <1 | 3 | <1 | 33' |
| 2D | 110 | 100 | 89 | 70 | 18' |
| 3D | <1 | 2 | 4 | 4 | 26.5' |
| 4D | 3 | <1 | 3 | 4 | 33' |
1EMEG -- environmental
dose media evaluation guide; CREG - cancer risk evaluation guide
MCL -- maximum contaminant level (see Attachment 3).
ppb = parts per billion
Bold results indicate monitoring wells in areas of leachate
runoff.
Table 3. 1997-1998 On-site Groundwater Quarterly Samples
for Thallium [4]
(comparison values for thallium -- LTHA: 0.4ppb MCL: 2 ppb)1
| Well | Spring (ppb) |
Summer (ppb) |
Fall (ppb) |
Winter (ppb) |
Depth (feet) |
| Q3D | <4 | <4 | 10 | <4 | 46' |
| Q7D | <4 | <4 | 8 | <4 | 231.25' |
1 LTHA -- lifetime
health advisory; MCL -- maximum contaminant level (see Attachment 3).
ppb = parts per billion
Bold results indicate monitoring wells in areas of leachate
runoff
Table 4. 1997-1998 On-site Groundwater Quarterly Samples
for Methacrylonitrile [4]
(comparison value for methacrylonitrile -- RMEG: child 1 ppb, adult 4 ppb)1
| Well | Spring (ppb) |
Summer (ppb) |
Fall (ppb) |
Winter (ppb) |
Depth (feet) |
| Q6S | <5 | <10 | 43 | <10 | 141.94' |
| 2D | <5 | <10 | 59 | <10 | 18' |
1RMEG -- reference
dose media evaluation guide (see Attachment 3).
ppb = parts per billion
Bold results indicate monitoring wells in areas of leachate
runoff.
Table 5. 1997-1998 On-site Groundwater Quarterly Samples
for Vinyl Chloride [4]
(comparison values for vinyl chloride -- EMEG: child 0.2 ppb, adult 0.7 ppb; MCL: 2 ppb)1
| Well | Spring (ppb) |
Summer (ppb) |
Fall (ppb) |
Winter (ppb) |
Depth (feet) |
| Q3D | 4.9 est. | 4.3 est. | 2.8 est. | 4.2 est. | 46' |
| 2D | <10 | <10 | <10 | 1.2 est. | 18' |
| 4D | 3.5 est. | <10 | 2.3 est. | 2.6 est. | 33' |
1EMEG -- environmental
dose media evaluation guide; MCL -- maximum contaminant level (see Attachment 3).
ppb = parts per billion
est.- result represents estimated value that is below
the Practical Quantitation Limit.
Bold results indicated monitoring wells in areas of leachate
runoff.
Table 6. October 1990 Subsurface Soil, Sediment, Groundwater
On-site Monitoring and Residential Wells, and Surface Water (6)
| Parameter | Frequency of Detection | Range of Sample Quantitation Limits | Range of Detected Concentration | Mean | Background Levels | Comparison Values Child/Adult |
MCL |
| On-Site Groundwater and Off-Site Residential Water | (ppb) | (ppb) | (ppb) | (ppb) | Child/Adult (ppb) | (ppb) | |
| Vinyl Chloride | 4/60 | 10 - 10 | 2 - 7 | 5 | ND-0.066 | 0.2/0.7 EMEG | 2 |
| Surface Water | (ppb) | (ppb) | (ppb) | (ppb) | Child/Adult (ppb) | (ppb) | |
| Manganese | 3/4 | 15 - 15 | 42 - 2,300 | 777 | <1,000 | 50/200 RMEG1 | none |
| Sediments | (ppm) | (ppm) | (ppm) | (ppm) | Pica/Child/Adult (ppm) | (ppb) | |
| Arsenic | 6/7 | 6 - 6 | 1.5 - 7.4 | 4 | 1 - 40 | 0.6/20/200 EMEG2 | n.a. |
| Barium | 7/7 | - - | 15 - 140 | 70.5 | 100-3,500 | 100/4,000/700,000 RMEG2 | n.a. |
| Cadmium | 1/7 | 0.3 - 2.0 | 0.4 - 0.4 | 0.55 | 0.01 - 7 | 0.4/10/100 EMEG2 | n.a. |
| Manganese | 7/7 | - - | 220 - 2,020 | 803 | 100 - 4,000 | 300/7,000 RMEG2 | n.a. |
| Vanadium | 7/7 | - - | 6.0 - 29 | 18 | 20 - 500 | 6/200/2,000 EMEG2 | n.a. |
| Subsurface Soil | (ppm) | (ppm) | (ppm) | (ppm) | Pica/Child/Adult (ppm) | (ppm) | |
| Aroclor 1254 | 1/9 | 0.04 - 0.2 | 0.23 - 0.23 | 0.05 | - - | 0.04/1/10 EMEG 2 | n.a. |
| Arsenic | 5/9 | 0.1 - 1 | 1 - 3.6 | 1 | 1 - 40 | 0.6/20/200 EMEG 2 | n.a. |
| Cadmium | 6/9 | 0.5 - 0.5 | 0.87 - 3.3 | 1.3 | 0.01 - 7 | 0.4/10/100 EMEG 2 | n.a. |
| Vanadium | 8/9 | 4 - 4 | 9.2 - 16 | 11.5 | 20 - 500 | 6/200/2,000 EMEG 2 | n.a. |
Chart compiled using data from Phase I and Phase II Remedial
Investigation and October 1990 sampling activities. No information was given
regarding the sample source or representativeness of background levels illustrated
on this table.
ppb = parts per billion
ppm = parts per million
n.a.- Not applicable
- - No data or comparison value
1 Drinking Water Comparison Values were used
for surface water sample results.
2 Soil Comparison Values were used for sediment
and subsurface soil results.
Table 7. Completed Exposure Pathways
| Pathway Name | Source | Medium | Exposure Point | Exposure Route | Receptor Population | Time of Exposure | Exposure Activities | Estimated Number Exposed | Chemicals |
| Off-site Groundwater | Landfill | Groundwater | Residential Wells | Ingestion Inhalation Dermal |
Residents using private wells near site | Past Future? |
Household use of groundwater | 25 | Tables 1 - 6 |
| On-Site Surface Soil | Landfill | Surface Soil | Surface Material | Ingestion Inhalation Dermal |
Site workers Trespassers | Past | Remediation activities, Trespassing | 40 | Tables 1 - 6 |
| On-Site Leachate | Landfill | Leachate | Surface Material | Ingestion Inhalation Dermal |
Site workers Trespassers |
Past | Remediation activities, Trespassing |
40 | Table 6 |
| Surface Water | Landfill | Surface Water | Surface Water | Ingestion Dermal |
Hunters, Fishers, Trespassers | Past | Hunting, Fishing, Trespassing |
10 | Table 6 |
ATTACHMENT 1. Location of Quincy Landfill 2 & 3
ATTACHMENT 2. Potentiometric Surface Limestone Aquifer
Comparison Values Used In Screening Contaminants For Further Evaluation
Environmental Media Evaluation Guides (EMEGs) are developed for chemicals based on their toxicity, frequency of occurrence at National Priority List (NPL) sites, and potential for human exposure. They are derived to protect the most sensitive populations and are not action levels, but rather comparison values. They do not consider carcinogenic effects, chemical interactions, multiple route exposure, or other media-specific routes of exposure, and are very conservative concentration values designed to protect sensitive members of the population.
Reference Dose Media Evaluation Guides (RMEGs) are another type of comparison value derived to protect the most sensitive populations. They do not consider carcinogenic effects, chemical interactions, multiple route exposure, or other media-specific routes of exposure, and are very conservative concentration values designed to protect sensitive members of the population.
Cancer Risk Evaluation Guides (CREGs) are estimated contaminant concentrations based on a probability of one excess cancer in a million persons exposed to a chemical over a lifetime. These are also very conservative values designed to protect sensitive members of the population.
Maximum Contaminant Levels (MCLs) have been established by USEPA for public water supplies to reduce the chances of adverse health effects from contaminated drinking water. These standards are well below levels for which health effects have been observed and take into account the financial feasibility of achieving specific contaminant levels. These are enforceable limits that public water supplies must meet.
Lifetime Health Advisories for drinking water (LTHAs) have been established by USEPA for drinking water and are the concentration of a chemical in drinking water that is not expected to cause any adverse non-carcinogenic effects over a lifetime of exposure. These are conservative values that incorporate a margin of safety.
This Quincy Landfill 2 & 3 Public Health Assessment was prepared by the Illinois Department of Public Health under a cooperative agreement with the Agency for Toxic Substances and Disease Registry (ATSDR). It is in accordance with approved methodology and procedures existing at the time the public health assessment was begun.
Gail D. Godfrey
Technical Project Officer
Division of Health Assessment and Consultation
ATSDR
The Division of Health Assessment and Consultation, ATSDR, has reviewed this public health assessment and concurs with its findings.
Richard E. Gillig
Chief, State Programs Section
Division of Health Assessment and Consultation
ATSDR
