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GALLOWAY TOWNSHIP, NEW JERSEY RESEARCH SITE

Toxic Substances Hydrology Program

Since 1988, the U.S. Geological Survey's Toxic Substances Hydrology Program () has been investigating the fate and transport of hydrocarbons in the unsaturated zone and shallow ground water at gasoline- spill site in Galloway Township, New Jersey. Research has focused on three interrelated areas of research: ground-water contaminant geochemistry, estimation of microbial degradation rates of hydrocarbons on the basis of rates of gas transport in the unsaturated zone, and vapor-extraction remediation design.  Contaminant geochemistry work has produced a water-quality database that indicates zones of aerobic biodegradation adjacent to zones of anaerobic degradation with sharp chemcial-concentration gradients in narrow interfacial zones. The analysis of gas transport in the unsaturated zone has provided a method for quantifying rates of aerobic biodegradation in the capillary zone and shallow ground water. Mathematical models have been developed to simulate vapor extraction remediation and to optimize system design.

WRIR 98-4264 Methyl tert-butyl ether (MTBE) and other volatile organic compounds in lakes in Byram Township, Sussex County, New Jersey, summer 1998