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PUBLIC HEALTH ASSESSMENT ADDENDUM

ENDICOTT VILLAGE WELLFIELD
(a/k/a RANNY WELL)
ENDICOTT, BROOME COUNTY, NEW YORK

CONCLUSIONS

  1. Based on the information reviewed, the Endicott Wellfield site is a public health hazard because of past exposures to VOC's in the public water supply by ingestion, dermal absorption, and inhalation. Prior to May 1981, it is not known how long or at what concentrations these contaminants may have been present in the public water supply. Treatment of the public water supply to remove contaminants began in March 1983.
  2. Currently, the Endicott Wellfield site poses no apparent public health hazard as there are no exposures to site contaminants at levels that are likely to cause adverse health effects.
  3. A study of cancer incidence by the Broome County Health Department (BCHD) for the period 1976-1980 for the Endicott area found an elevated rate of leukemia among males and an elevated rate of lung cancer among females. The findings of the report did not attribute the occurrence of these cancers to a common exposure, such as drinking water. The conclusion of the study discussed the possibility that males may have an increased exposure to organic chemicals at the workplace. The study did not incorporate information on smoking which is known to be associated with lung cancer.
  4. The SRI found that the Endicott Landfill (Landfill 1) is the source of VOC contaminants in the Ranney well.
  5. Monitoring of water quality at the Ranney well and within the distribution system of the municipal water supply indicates that past remedial measures are effectively removing VOCs from the municipal drinking water supply.
  6. Continued operation of the Ranney well is necessary to meet the community's water supply needs. The quantity of water produced by the Ranney well cannot be replaced by the other existing and operating wells in the Village of Endicott's water supply system.
  7. The occurrence of contaminants in the Endicott municipal water supply has been attributed to flooding of the Endicott Village Landfill by the Susquehanna River, which coupled with the effects of pumping of the Ranney Well, resulted in the leaching of contaminants from the waste mass and migration of contaminants in groundwater towards the municipal wellfield.
  8. Currently, drummed wastes are exposed at the surface of Landfill 1. The drums may pose a potential physical hazard to trespassers, as access to Landfill 1 is not adequately restricted. The September 30, 1992 ROD requires that these drums be removed prior to installation of the landfill cap.
  9. Methane generation at Landfills 1, 2 and 3 has not been evaluated previously. However, the September 30, 1992 ROD requires that an explosive gas investigation be conducted at Landfill 1 and a gas venting system is to be installed, as necessary, based on the results of this study.
  10. In September 1993, operation of the supplemental purge well began.


RECOMMENDATIONS

Based on the findings of this public health assessment addendum for the Endicott Wellfield site, the following recommendations have been made for consideration as part of follow-up health and remediation activities.

  1. Evaluate the physical condition and integrity of all existing monitor wells on the En-Joie Golf Course and in other public areas near the site.
  2. Improve the existing covers over the two subsurface valve locations near the southern portion of the golf course or restrict public access to these areas.
  3. Install physical barriers around the landfill perimeter to restrict unauthorized access to the Endicott Village Landfill.
  4. The components of the September 30, 1992 (third) ROD for this site should be implemented to control the potential for future releases of contaminants from the landfill to groundwater.
  5. Water quality at the Ranney well and other points within the public water supply distribution system should continue to be monitored on a regular basis.
  6. A wellfield protection plan should be developed or other measures implemented for the Village of Endicott Wellfield, to protect the other water supply wells at the site from future groundwater contamination.
  7. The current and future use of the two landfills north of the Endicott Wellfield (Landfills 2 and 3) should be evaluated in terms of potential impacts to the Endicott Wellfield. The inactive portions of these two landfills should be closed in accordance with appropriate state regulatory requirements.
  8. People who were exposed to VOCs in drinking water in the past, should be considered for inclusion on the registry of VOCs exposures from drinking water which is being developed by the NYS DOH.
  9. Adequate measures should be followed to ensure appropriate levels of protection to workers who may be conducting additional investigatory and/or remediation activities at the site.
  10. The exposed drums at Landfill 1 should be removed.
  11. Additional evaluations of the effect(s) of chemical emissions from TRI reporting facilities near the Endicott Wellfield site should be conducted, to evaluate if there is an associated additional health risk to the exposed population(s) at and near the site.


HEALTH ACTIVITIES RECOMMENDATION PANEL (HARP) RECOMMENDATION

The data and information developed in the public health assessment addendum for the Endicott Village Wellfield site in the Village of Endicott, Broome County, New York, has been reviewed by ATSDR's Health Activities Recommendations Panel (HARP) to determine appropriate follow-up health actions. Because of past exposure to contaminated drinking water, the Panel determined that follow-up health actions are needed. Specifically, those persons exposed in the past should be considered for inclusion on NYS DOH's registry being developed for VOC exposures from drinking contaminated water. This registry will be matched with the cancer registry to evaluate possible adverse health outcomes. The HARP also determined that an update to the previous health outcome data review should be performed.


PUBLIC HEALTH ACTIONS

The Public Health Action Plan (PHAP) for the Endicott Wellfield site contains a description of actions to be taken by ATSDR and/or the NYS DOH at and near the site, following completion of this public health assessment addendum. For those actions already taken at the site, please refer to the Background section of this public health assessment addendum. The purpose of the PHAP is to ensure that this public health assessment addendum not only identifies public health hazards, but provides a plan of action designed to mitigate and prevent adverse human health effects resulting from past, present and/or future exposures to hazardous substances at or near the site. Included, is a commitment on the part of ATSDR and/or the NYS DOH to follow up on this plan to ensure that it is implemented.

The public health actions planned for the Endicott Wellfield site are as follows:

  1. ATSDR and NYS DOH will coordinate with the appropriate environmental agencies to develop plans to implement the recommendations contained in this Public Health Assessment Addendum .
  2. ATSDR will provide an annual follow up to this PHAP, outlining the actions completed and those in progress. This report will be placed in repositories that contain copies of this Public Health Assessment Addendum, and will be provided to persons who request it.
  3. The significance of emissions from the TRI facilities identified in this public health assessment addendum, as sources of additional health risk to the exposed population(s) at the Endicott Wellfield site, will be considered for further evaluation by NYS DOH.
  4. NYS DOH is developing a registry of persons exposed to VOCs in drinking water. Residents who were exposed in the past to VOCs in drinking water, will be considered for inclusion to this registry.
  5. NYS DOH will request that the 1986 study of cancer incidence conducted by the Broome County Health Department be updated through 1990 to determine whether the cancer incidence patterns seen for 1976-1980 are also found for 1981-1990.

ATSDR will re-evaluate and expand the Public Health Action Plan when needed. New environmental, toxicological, or health outcome data, or the results of implementing the above proposed actions may determine the need for additional actions at this site.

CERTIFICATION

 

The Public Health Assessment Addendum for the Endicott Village Well Field was prepared by the New York State Departmeent of 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 addendum was initiated.

Gregory V. Ulirsch
Technical Project Officer, SPS, RPB, DHAC

The Division of Health Assessment and Consultation (DHAC), ATSDR, has reviewed this Public Health Assessment Addendum and concurs with its findings.

Robert C. Williams
Division Director, DHAC, ATSDR


PREPARERS OF THE REPORT

Claudine Jones Rafferty
Environmental Health Specialist II
Bureau of Environmental Exposure Investigation
New York State Department of Health

ATSDR Regional Representative
Arthur Block
Regional Services
Office of the Assistant Administrator
ATSDR

ATSDR Technical Project Officer
Greg Ulrisch
Technical Project Officer
Remedial Programs Branch
Division of Health Assessment and Consultation
ATSDR


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