Health Assessment for San Gabriel Valley, San Gabriel, Los Angelos County, California, Region 9. CERCLIS Nos. CAD980677355, CAD980818512, CAD980818579, CAD980817985

摘要

A large portion of the groundwater in the San Gabriel basin has been contaminated with volatile organic compounds (VOCs) at concentrations of public health concern. The primary contaminants in the study area are PCE, TCE, and CTC, although other VOCs have been identified in the groundwater. The sources of the contamination are currently unidentified and therefore physical hazards such as open storage tanks, vessels, drums, or general debris associated with the sources cannot be fully addressed. The El Monte area site is considered to be of public health concern because of the risk to human health caused by the likelihood of exposure to hazardous substances through the use of the contaminated groundwater. The other NPL areas in the San Gabriel study area are of potential public health concern because of the potential for exposures to contaminants through ingestion of contaminated groundwater, inhalation and/or dermal contact.