Investigation of the potential relationship between chlorinated volatile organic compounds in a perched aquifer and a regional aquifer
- McLaren/Hart Environmental Engineering Corp., Burbank, CA (United States)
Beneath an industrial site in Los Angeles County, CA, chlorinated volatile organic compounds (VOCs) have been discovered in a shallow perched and a regional aquifer. VOCs detected in the perched aquifer include tetrachloroethene (PCE), trichloroethene (TCE), 1,2-dichloroethane (1,2-DCA), and cis-1,2-dichloroethene (cis-1,2-DCE), and vinyl chloride. The aromatics benzene, toluene, and xylene have also been detected. Comparison of analytical results collected between 1986 and 1993 indicate the concentrations of VOCs in the perched aquifer have steadily decreased over time, with the exception of PCE and TCE. VOCs in the regional aquifer include PCE, TCE, cis-1,2-DCE, and chloroform. Analytical results from 1987 through 1993 indicate the concentrations of VOCs in the Exposition-Gage Aquifer beneath the site have steadily increased. However, upgradient ground-water quality analysis indicates only a trace level (2 ppb) of toluene present.
- OSTI ID:
- 6066379
- Report Number(s):
- CONF-9310166-; CODEN: JEVHAH
- Journal Information:
- Journal of Environmental Health; (United States), Vol. 56:3; Conference: Association of Ground Water Scientists and Engineers (AGWSE) educational seminar on chlorinated volatile organic compounds in ground water, Kansas City, MO (United States), 17-20 Oct 1993; ISSN 0022-0892
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
AQUIFERS
CONTAMINATION
BENZENE
ECOLOGICAL CONCENTRATION
CALIFORNIA
WATER POLLUTION
CHLORINATED ALIPHATIC HYDROCARBONS
GROUND WATER
TOLUENE
XYLENES
CHLOROFORM
MONITORING
VINYL CHLORIDE
ALKYLATED AROMATICS
AROMATICS
DEVELOPED COUNTRIES
HALOGENATED ALIPHATIC HYDROCARBONS
HYDROCARBONS
HYDROGEN COMPOUNDS
NORTH AMERICA
ORGANIC CHLORINE COMPOUNDS
ORGANIC COMPOUNDS
ORGANIC HALOGEN COMPOUNDS
OXYGEN COMPOUNDS
POLLUTION
USA
WATER
540220* - Environment
Terrestrial- Chemicals Monitoring & Transport- (1990-)