Health Assessment for McClellan Air Force Base, Sacramento, California, Region 9. CERCLIS No. CA4570024337

摘要

The McClellan Air Force Base Site is on the National Priorities List. Sources of contamination include industrial solvents and caustic cleaners, electroplating waste, heavy metals, oils contaminated with polychlorinated biphenyls (PCBs), and low level radioactive wastes. Most of the contaminated areas on-site consist of burial pits used for storage and/or burning of wastes. Preliminary on-site sampling results have identified benzene and total xylenes. Preliminary off-site groundwater sampling results from area residential wells have identified TCE and DCE. The site is considered to be of public health concern because of the risk to human health caused by the likelihood of human exposure to hazardous substances. Direct contact with ingestion, and inhalation of contaminated groundwater are the likely human exposure pathways. In addition, the possibility of inhalation of volatilized contaminants by Base employees and area residents and ingestion of bioaccumulated contaminants in the food chain by area residents are other possible exposure pathways.