The Shieldalloy Corporation site is on the National Priorities List. The approximately 62-acre site is an active specialty plant making chromium alloy products. Past disposal practices have resulted in extensive chromium contamination of the groundwater. On-site contamination consists of hexavalent chromium (55 ppm) in groundwater; and chromium in sludge (20%). Off-site contamination consists of hexavalent chromium in groundwater (33 ppm) and surface water (35 ppm), and trichloroethylene (3 ppm) in surface water. The trichloroethylene may not be site related. Low level radioactive wastes have been reported to be on-site, but no supporting documentation was presented. The Company is licensed by the Nuclear Regulatory Commission. The site is considered to be of potential public health concern because of the risk to human health caused by the possibility of exposure to hazardous substances via groundwater, surface water, soils, sludges, airborne particulate, and ingestion of contaminated fish.
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