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Based on the information reviewed, PADOH has concluded that this site represents no apparent public health hazard, since available data do not indicate that humans are being or have been exposed to levels of contaminants that would be expected to cause adverse health effects. The investigation of off-site groundwater has determined that there were no private wells in the contaminant plume and presently all residents use the public supply with the reserve supply wells remediated. Findings, to date, indicate that future exposure could only occur if a well was dug into the contamination plume.

Health outcome data could not be addressed to the specificity desired; however, since there is indication that past, present, and future exposures did not and will not occur to an extent that would produce adverse health effects, health outcome data evaluation should not be necessary. A review of cancer mortality for Williamsport City did not indicate that cancer mortality in Williamsport City differed significantly from Pennsylvania.


Cease/Reduce Exposure Recommendations

Develop institutional controls as part of the remediation plan to avoid future exposure to contaminated groundwater.

Site Characterization Recommendations

Additional sampling of the groundwater plume should be performed to better determine the extent of contamination (e.g., across Lycoming Creek) and to assure that further migration is not occurring.

Health Activities Recommendations Panel (HARP) Recommendations

The data and information developed in the AVCO Lycoming-Williamsport Division Public Health Assessment have been evaluated for appropriate follow-up health actions. The ATSDR Health Activities Recommendation Panel (HARP) determined that no follow-up public health actions are indicated. ATSDR will reevaluate this site and conduct appropriate public health actions, if new data become available that indicate a need to do so.


The Public Health Action Plan (PHAP) for the AVCO Lycoming site contains a description of actions to be taken by ATSDR and/or PADOH at and in the vicinity of this site subsequent to the completion of this health assessment. The purpose of the PHAP is to ensure that this health assessment not only identifies public health hazards, but provides a plan of action designed to mitigate and prevent adverse human health effects resulting from exposure to hazardous substances in the environment. Included in this plan is a commitment on the part of ATSDR/PADOH to follow up on this plan to ensure that it is implemented.

No public health actions are indicated at this time.


James M. Fox, M.D.
Public Health Physician
Pennsylvania Department of Health

Kandiah Sivarajah, Ph.D.
State Toxicologist and Project Director
Pennsylvania Department of Health

ATSDR Regional Representative

Charles Walters
Public Health Advisor
EPA Region III
Office of the Assistant Administrator

ATSDR Technical Project Officer

Gail Godfrey
Technical Project Officer
Division of Health Assessment and Consultation


This AVCO Lycoming Public Health Assessment was prepared by the Pennsylvania Department 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 was begun.

Gail Godfrey
Technical Project Officer
Remedial Programs Branch
Division of Health Assessment and Consultation (DHAC)

The Division of Health Assessment and Consultation, ATSDR, has reviewed this public health assessment, and concurs with its findings.

Robert C. Williams, P.E., DEE
Director, DHAC, ATSDR


  1. Environmental Resources Management, Inc., Draft Remedial Investigation Report, Textron Lycoming, Williamsport, Pennsylvania, January 15, 1991.

  2. Agency for Toxic Substances and Disease Registry, Preliminary Health Assessment for AVCO Lycoming (Williamsport Division) Site, Williamsport, Pennsylvania, September 30, 1988.

  3. Responsiveness Summary for the Proposed Remedial Action Plan, AVCO Lycoming Site, June 1991.

  4. Summary of General Population Characteristics, 1990, Census of Population and Housing, 1990; Summary Tape File 1A, U.S. Department of Commerce, Bureau of the Census, June 1991.

  5. Personal Telephone Conversation with Randy Farmer, Pennsylvania Department of Environmental Resources, April 30, 1992.

  6. U.S. Environmental Protection Agency, Record of Decision, AVCO Lycoming Site, June 28, 1991.

  7. Agency for Toxic Substances and Disease Registry, Toxico-logical Profile for Trichloroethylene, U.S. Public Health Service, Atlanta, Georgia, July 1990.

  8. Agency for Toxic Substances and Disease Registry, Toxico-logical Profile for Cis-1,2-Dichloroethene, Trans-1,2-Dichloroethene, 1,2-Dichloroethene, U.S. Public Health Service, Atlanta, Georgia, December 1990.

  9. Agency for Toxic Substances and Disease Registry, Toxico-logical Profile for Chromium, U.S. Public Health Service, Atlanta, Georgia, July 1989.

  10. Pennsylvania Vital Statistics Record File, State Health Data Center, Pennsylvania Department of Health, 1990.

  11. Bailor, J.C. III, Ederer F. Significance Factors for the Ratio of a Poisson Variable to its Expectation. Biometrics; 20:639-643, 1964.

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