New Jersey Water Science Center
GALLOWAY TOWNSHIP RESEARCH SITE
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GALLOWAY TOWNSHIP, NEW JERSEY RESEARCH SITE
This project has been COMPLETED
The U.S. Geological Survey's Toxic Substances Hydrology Program investigated the fate and transport of hydrocarbons in the unsaturated zone and shallow groundwater at a gasoline-spill site in Galloway Township, New Jersey. Research focused on three interrelated themes: groundwater 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 produced a water-quality database that indicated 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 provided a method for quantifying rates of aerobic biodegradation in the capillary zone and shallow groundwater. Mathematical models were developed to simulate vapor extraction remediation and to optimize system design.
Archival project information at the USGS Toxic Substances Hydrology Program.