Health Assessment for O'Connor Company Site, Augusta, Kennebec County, Maine, Region 1. CERCLIS No. MED980731475

摘要

The F. O'Connor Site (FOC) is listed by the U.S. Environmental Protection Agency (EPA) on the National Priorities List. The 28-acre site is located in Augusta (Kennebec County), Maine. FOC recycled capacitors, transformers, and scrap metal for about 20 years. Waste oil from these operations was disposed of on-site or burned. Preliminary on-site soil sampling results have identified PCB's (ND to 200,000 ppm), various PAH's (ND to 23 ppm), and various metals such as lead (62 to 3,210 ppm), nickel (18 to 29 ppm), chromium (28 to 34 ppm), arsenic (8 to 13 ppm), and mercury (ND to 3 ppm). On-site groundwater sampling results detected 1,4-dichlorobenzene (ND to 28 ppb) and PCB's (ND to 72 ppb). Potential environmental pathways include those related to contaminated groundwater, surface water, soils and sediment, and volatilization of contaminants in ambient air. In addition, bioaccumulation of contaminants in fish, water fowl, livestock, and commercial agricultural products may be another environmental pathway. Based on available information, this site is considered to be of potential public health concern because of the risk to human health caused by the likelihood of human exposure to hazardous substances. Area residents may be exposed through direct contact with and ingestion of contaminated off-site soil and sediment. An additional exposure pathway may exist through the ingestion of fish, waterfowl, and other aquatic organisms that bioaccumulate site-related contaminants.