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PUBLIC HEALTH ASSESSMENT

H.O.D. LANDFILL
ANTIOCH, LAKE COUNTY, ILLINOIS


CONCLUSIONS

This site, in its present condition, does not pose a public health hazard. Potential risk to human health may have been caused by past exposures to contaminants in the public water supply (particularly municipal well number 4), but this is not likely given the low levels of the contamination. The contamination detected in the sampled private wells near the site, and the potential for chemical migration from the site to nearby public or private drinking water wells, present a possibility for future exposures. Past exposures to contaminants through ingestion, inhalation, and dermal contact may have occurred. Exposure may occur again if levels of contaminants found in on-site groundwater migrate to public and private drinking water wells. At present, exposures are not at levels of health concern.

Vinyl chloride is the principal contaminant of concern. Other contaminants of concern are less problematic and include benzene, thallium, sodium, and bis(2-ethylhexyl)phthalate (DEHP). Vinyl chloride, sodium, and thallium were detected in the public water supply, and sodium and thallium were detected in the sampled private wells. High levels of vinyl chloride and bis(2-ethylhexyl)phthalate have been detected sporadically in on- and off-site groundwater.

We cannot determine at this point if these chemicals or other groundwater contaminants will continue to migrate to nearby municipal water supply wells or affect the private wells. We cannot state, with certainty, that the landfill is the sole source of the contaminants detected in the sampled media, nor can a plume be defined. Better characterization of the contamination in the public and private water supply wells and the on- and off-site groundwater monitoring wells, and the area's hydrogeology is necessary to answer these questions.

Data are not sufficient to evaluate the effects of site runoff on the wetlands and nearby residential areas.


RECOMMENDATIONS

  1. Continue to operate the leachate collection system at the site to reduce the impact of site contaminants on the area groundwater.
  2. Monitor municipal well number 4 regularly for contamination, and also monitor municipal wells numbers 3 and 5, which are downgradient of well number 4. The continued use of municipal well number 4 should be evaluated if contamination persists.
  3. Monitor the private wells downgradient of the site periodically for contamination. An alternative water supply should be considered if contamination persists at levels above health concern.
  4. Evaluate the discharge of groundwater and surface runoff into Sequoit Creek to find whether the site has affected the wetlands and adjacent residential areas.
  5. Provide information to residents whose well water contained levels of sodium that exceeds 20,000. Encourage residents who are on a salt-restricted diet to consult their health care provider if their well water contains high levels of sodium.

Health Activities Recommendation Panel Statement

The Health Activities Recommendation Panel (HARP) has evaluated data and information developed for the H.O.D. Landfill Public Health Assessment for appropriate follow-up with respect to health actions. The panel determined that, although low level exposure to contaminated groundwater may be occurring and has occurred in the past, there is insufficient information on actual exposures to warrant follow-up health studies. HARP recommended that the Agency for Toxic Substances and Disease Registry (ATSDR) provide health education to citizens as necessary concerning exposures to site-related contaminants. If new data become available suggesting that human exposure is occurring or has occurred in the past at levels of public health concern, IDPH and ATSDR will reevaluate this site for any indicated follow-up.

Public Health Actions

The Public Health Action Plan (PHAP) for the H.O.D. Landfill site contains a description of actions to be taken by ATSDR and IDPH at and near the site after the completion of this public health assessment. The purpose of the PHAP is to ensure that this public health assessment not only identifies public health hazards, but also provides a plan of action designed to mitigate and prevent adverse human health effects resulting from exposure to hazardous substances in the environment. Included is a commitment of ATSDR and IDPH to follow up on this Plan to ensure that it is carried out.

Based on the recommendations made in the public health assessment, the following public health actions have been or will be undertaken.


HEALTH ACTIONS PLANNED

IDPH and ATSDR will coordinate with the state and federal environmental agencies to carry out the recommendations made in this assessment. IDPH and ATSDR will reevaluate and expand the Public Health Action Plan when needed. New environmental, toxicological, or health outcome data, or the results of carrying out the proposed actions and recommendations may determine the need for additional actions at this site.


PREPARERS AND REVIEWERS OF REPORT

Preparers of Report:

Valeri DeCastris
K. D. Runkle
Environmental Toxicologists
Illinois Department of Public Health

Reviewers of Report:

Bruce Barrow
C. Michael Moomey
Environmental Toxicologists
Illinois Department of Public Health

ATSDR REGIONAL REPRESENTATIVE:

Louise Fabinski
Regional Operations
Office of the Assistant Administrator

ATSDR TECHNICAL PROJECT OFFICERS:

William Greim
Gail Godfrey
Superfund Site Assessment Branch
Division of Health Assessment and Consultation


CERTIFICATION

This H. O. D. Landfill 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


REFERENCES

Agency for Toxic Substances and Disease Registry. 1991. Draft Toxicological Profile for Arsenic. Atlanta, Georgia. October.

Agency for Toxic Substances and Disease Registry. 1991. Draft Toxicological Profile for Benzene. Atlanta, Georgia. October.

Agency for Toxic Substances and Disease Registry. 1991. Draft Toxicological Profile for di(2-ethylhexyl)phthalate (DEHP). Atlanta, Georgia. October.

Agency for Toxic Substances and Disease Registry. 1991. Draft Toxicological Profile for Cadmium. Atlanta, Georgia. October.

Agency for Toxic Substances and Disease Registry. 1992. Draft Toxicological Profile for Lead. Atlanta, Georgia. February.

Agency for Toxic Substances and Disease Registry. 1992. Toxicological Profile for Manganese and Compounds. Atlanta, Georgia. July.

Agency for Toxic Substances and Disease Registry. 1992. Toxicological Profile for Thallium. Atlanta, Georgia. July.

Agency for Toxic Substances and Disease Registry. 1991. Draft Toxicological Profile for Vinyl Chloride. Atlanta, Georgia. October.

Agency for Toxic Substances and Disease Registry. 1992. Draft Toxicological Profile for Zinc. Atlanta, Georgia. October.

Agency for Toxic Substances and Disease Registry. Draft Health Assessment Guidance Manual. 1991. February.

Agency for Toxic Substances and Disease Registry. January 19, 1989. Preliminary Health Assessment for H.O.D. Landfill, Antioch, Lake County, Illinois. January.

Agency for Toxic Substances and Disease Registry. Draft Comparison Values. Atlanta, Georgia. March 31, 1994 expiration date.

Ecology and Environment, Inc. September 22, 1989. Expanded Site Inspection Report for H.O.D. Landfill. Antioch, Illinois. Volumes l and 4.

Illinois Environmental Protection Agency. Division of Land Pollution Control. Maywood, Illinois. Files.

Illinois Environmental Protection Agency. Division of Land Pollution Control. Springfield, Illinois. Files.

Integrated Risk Information System (IRIS). 1992-1993. United States Environmental Protection Agency.

Lake County Health Department. Division of Environmental Health. Waukegan, Illinois. Files.

National Library of Medicine. 1991. Toxicology Data Network (TOXNET). Bethesda, Maryland: NLM.

Toxic Chemical Release Inventory. 1990. National Library of Medicine, National Toxicology Information Program, Bethseda, MD. August.

United States Enviromental Protection Agency. Superfund Program. Chicago, Illinois. Files.

Versar, 1986. H.O.D. Landfill Responsible Party Search Draft Final Report.

Warzyn, Inc. Interim Remedial Measure for H.O.D. Landfill, Antioch, Illinois. August, 199l. Chicago, Illinois.

Warzyn, Inc. Work Plan (PSER/TS). Volume 1. H.O.D. Landfill, Antioch, Illinois. October, 1990. Chicago, Illinois.

Warzyn, Inc. Work Plan (PSER/TS). Volume 1. H.O.D. Landfill, Antioch, Illinois. February, 199l. Chicago, Illinois.

Warzyn, Inc. Work Plan (PSER/TS). Volume 1. H.O.D. Landfill, Antioch, Illinois. June, 199l. Chicago, Illinois.

Warzyn, Inc. Work Plan (PSER/TS). Volume 1. H.O.D. Landfill, Antioch, Illinois. August, 1992. Chicago, Illinois.

Waste Management of Illinois. Environmental Monitoring Laboratories, Inc. Historical Report. Northbrook, Illinois. Woller, Dorothy M., and James P. Gibb, 1976. Public Groundwater Supplies in Lake County, Illinois Water Survey, Urbana, IL.


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