USGS
Water Resources

Galloway Township, New Jersey Research Site

Toxic Substances Hydrology Program


Research Objectives

The research objectives for this site are to:

Approach

Field experiments were performed to quantify the fate of gasoline hydrocarbons associated with engineered (vapor extraction)- and natural-attenuation remediation. A network of vapor probes and ground-water wells were sampled to obtain detailed resolution of the biogeochemical signatures of hydrocarbon degradation above and below the water table. Vapor extraction wells were sampled to determine hydrocarbon biodegradation and mass-removal rates.

Laboratory column experiments were performed to examine the direct response of microbes in controlled systems, emulative of field conditions. The column experiments were also used to determine air-phase permeabilities and effective diffusion coefficients of unsaturated-zone sediments. Open and closed microcosm experiments were conducted to investigate stoichiometric-degradation relations and biodegradation pathways.

Mathematical models provide a means to predict and quantify the transport and biodegradation of hydrocarbons in the subsurface. These models are applied to analyze field and laboratory experiments and to test microbial-kinetic hypotheses. The mathematical models help insure maximum transfer value of the methods to the public.

|Galloway Township Research Site| |Research Objectives| |Site Location| |Bibliography| |Mathematical Models| |Photo Gallery| |Research Team| |MTBE in Lakes(PDF)|

U.S. Department of the Interior, U.S. Geological Survey
New Jersey Water Science Center, 810 Bear Tavern Road, Suite 206, West Trenton, NJ 08628
Maintainer: NJ Webmaster
Last update: 11:38:48 Tue 12 Mar 2002
Privacy Statement || Disclaimer || Accessibility
URL: http://nj.usgs.gov/toxics/objectives.html
FirstGov, 'Your First Click to the U. S. Government'