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PUBLIC HEALTH ASSESSMENT

WEST KINGSTON TOWN DUMP
AND
UNIVERSITY OF RHODE ISLAND (PLAINS RD) DISPOSAL AREA (URI)
SOUTH KINGSTON, WASHINGTON COUNTY, RHODE ISLAND


CONCLUSIONS

  1. Based on the information reviewed, ATSDR has concluded that no completed site-related pathways of public health concern have been identified, but that there is inadequate information to determine whether any completed site-related pathways of public health concern exist. Therefore this site presents an indeterminate public health hazard.
  2. Estimated ingested doses to contaminants from private wells were at levels that pose no apparent health risks. Additionally, people are no longer using contaminated well water, and the exposure occurred in the past. Also, exposure to gasoline at this site does not represent any apparent health concern. Exposure to aldicarb from one private well may be a public health concern; however, aldicarb contamination is not site-related. ATSDR has found no additional past or present completed pathways of exposure to contaminants at levels of public health concern.
  3. The environmental sampling conducted to date was not intended to fully characterize the extent or amount of contaminants on and off site. Data are inadequate for waste materials, surface soils, ambient air on site and in nearby residences, groundwater off site, and off-site surface water.

RECOMMENDATIONS

Site Characterization Recommendations

  1. Obtain additional data for surface soil, waste materials, groundwater, surface water and ambient air to further characterize the extent and amount of site contamination that may exist on and off the site. In particular, perform the following:

    1. Obtain and analyze surface soil samples (< 3 inches) around, and beyond the landfill edges, along the access roads, and on immediately adjacent turf-farming or hay cropland. If substantive soil contamination is found at adjacent off-site locations, consider sampling surface soils of the nearest residential properties.
    2. Obtain and analyze samples of waste most likely to be disturbed if remedial activity is later initiated.
    3. Obtain and analyze additional groundwater samples on and off site to better characterize the extent of site-related contamination. Also, inventory and periodically conduct sampling of private well water in the vicinity, especially well water that previously showed contamination.
    4. Obtain and analyze samples of water from Hundred Acre Pond, Thirty Acre Pond, and the Chipuxet River to better establish water quality characteristics. Should substantive surface water contamination exist, consider sampling typical game fish species.
    5. Conduct ambient air sampling on site and in the nearest few residences that are downgradient from the site. If substantive concentrations are detected, consider expanding the sampling to additional residences.

Cease/Reduce Exposure Recommendations

  1. Implement institutional controls to prevent use of the contaminated zone of groundwater near the site, once the zone has been better defined. Institutional controls should remain in place unless, or until, natural processes or remediation has reduced contaminant concentrations to levels that are below public health concern.
  2. If remediation is initiated, implement optimal dust control measures and protect persons on and off the site from exposure to dusts or vapors that may be released.
  3. If remediation is implemented, provide on-site remedial workers with adequate protective equipment and training in accordance with 29 CFR 1910.120 (Code of Federal Regulations), and follow appropriate National Institute for Occupational Safety and Health and Occupational Safety and Health Administration guidelines.
  4. Monitor private drinking water wells in the area at least once for aldicarb and for site-related contaminants. Periodically monitor those wells in which contamination is detected. If the wells are contaminated at levels of public health concern, users should obtain an alternate water source.

Health Activities Recommendation Panel (HARP) Recommendations

The information and data developed in the West Kingston/URI Preliminary Public Health Assessment have been evaluated by the ATSDR Health Activities Recommendation Panel (HARP) for appropriate follow-up with respect to health activities. This site is determined to be an indeterminate public health hazard due to inadequate information concerning the extent of contamination and the number of people potentially exposed. The panel determined that no follow-up activities are indicated because the period of exposure was short, the levels of contaminants found are not likely to result in adverse health effects, and the community has not expressed any health concerns related to the site. If more information becomes available in the future indicating that additional human exposure to hazardous substances is occurring or has occurred in the past at levels of public health concern, or if citizens allege that any adverse health effects are occurring because of the site, ATSDR will reevaluate the site for additional indicated follow-up.


PUBLIC HEALTH ACTIONS

ATSDR develops a Public Health Action plan, where appropriate, that outlines specific commitments that are designed to mitigate and prevent adverse human health effects resulting from exposure to hazardous substances in the environment.

EPA plans to gather data to characterize the nature and extent of contamination at the site and contiguous areas.

Although ATSDR's HARP has determined from available information that no follow-up public health activities are indicated for this site, new environmental, toxicological, or health outcome data might identify public health issues that warrant action in the future. ATSDR will reevaluate public health actions when needed.


PREPARERS OF REPORT

Preparers of report:

Don Gibeaut
Environmental Health Engineer

Ms. Stephanie Prausnitz
Environmental Health Scientist

ATSDR Regional Representative:

Ms. Louise House MS
Environmental Health Scientist
Senior Regional Representative


REFERENCES

  1. NUS Corporation. Hazard Ranking System Package, West Kingston Town Dump/URI Disposal Area, South Kingston, Rhode Island. February 6, 1991.

  2. U.S. Environmental Protection Agency. Laboratory Data Sheets and Summaries, On-site Sampling. January 24, 1992.

  3. NUS Corporation. Final Listing Site Inspection, West Kingston Town Dump/URI Disposal Area. April 27, 1990.

  4. State of Rhode Island Water Resources Board. West Kingston Landfill Report. 1975.

  5. Rhode Island Department of Health. Computer Printout, Private Well Water Data. 1991.

  6. Rhode Island Department of Health. Laboratory Data Sheets and Computer Printout, Public Water Supply Data. 1979, 1984, 1992.

  7. U.S. Department of Health and Human Services. NIOSH Pocket Guide to Chemical Hazards. June 1990.

  8. American Cancer Society. Answering Your Questions About Cancer. 71-1MM-Rev.2/84-No.2025-LE. 1984.

  9. Sherman Janette. Chemical Exposure and Disease: Diagnostic and Investigative Techniques. New York: van Nostrand Reinhold, 1988:19.

  10. Hill RN. "Current EPA perspectives on animal selection and extrapolation" in (Roloff MV et al, eds) Human Risk Assessment. The Role of Animal Selection and Extrapolation. London: Taylor and Francis. 1987.

  11. Stallones RA. "Epidemiology and Environmental Hazards" in (Gordis L and Libauer CH, eds) Epidemiology and Human Risk Assessment. Oxford: Oxford University Press. 1988.

  12. Paustenbach DJ. "A survey of health risk assessment" in (Paustenbach DJ, ed) The Risk Assessment of Environmental Hazards. A Textbook of Case Studies. New York: John Wiley and Sons. 1989.

  13. National Library of Medicine (NLM). Integrated Risk Information System online data base. 1991.

  14. Agency for Toxic Substances and Disease Registry. Draft Toxicological profile for tetrachloroethylene. Atlanta, Georgia: ATSDR, 1991.

  15. Agency for Toxic Substances and Disease Registry. Draft Toxicological profile for trichloroethylene. Atlanta, Georgia: ATSDR, 1991.

  16. The Installation Restoration Program Toxicology Guide, Vol. 4. Biomedical and Environmental Information Analysis, Health and Safety Research Division, Oak Ridge National Laboratory. Oak Ridge, Tennessee. 1989.

  17. Agency for Toxic Substances and Disease Registry. Draft Toxicological profile for chloroform. Atlanta, Georgia: ATSDR, 1991.

  18. National Library of Medicine (NLM). Integrated Risk Information System online data base. 1992.

  19. Amdur MO, J Doull and CD Klaassen, editors. Casarett and Doull's Toxicology, fourth edition. New York: Pergamon Press, 1991.

  20. National Library of Medicine (NLM). Hazardous Substances Data Bank online data base. 1992.


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