USGS - science for a changing world

Environmental Health - Toxic Substances

Research Projects

Contaminated Site Management and Remediation Investigations

Map of Toxics Program Study Sites
Locations of Toxics Program Subsurface Point-Source Contamination Investigations
(Click on map for larger version)

Sample-freezing drive shoe before application
Sample-freezing drive shoe before application -- from the Cape Cod Site

The Toxics Program conducts intensive field investigations to study common classes of subsurface point-source contamination. (more information)

Contamination in Fractured-Rock Aquifers

Petroleum Related Contamination (including crude oil, gasoline and produced water)

Chlorinated Solvents Contamination

Contamination from Sources with Mixed Wastes (including landfills and wastewater discharge)

Complete listing of point-source investigations and projects >>

Other Subsurface Point-Source Investigations

Subsurface Point-Source Contamination Information

Meetings and Conferences

New Publications

Upcoming Publications

  • Field-scale SF6 tracer experiment to understand long distance gas transport in the deep unsaturated zone: Walvoord, M.A., Andraski, B.J., Green, C.T., Stonestrom, D.A., and Striegl, R.G., Vadose Zone Journal (IN PRESS).
  • Comparison of surficial CO2 efflux to other measures of subsurface crude oil degradation: Warren, E., Sihota, N., Hostettler, F.D., and Bekins, B.A., Journal of Contaminant Hydrology (IN PRESS).
  • Adaptations of indigenous bacteria to karst aquifers in south-Central Kentucky contaminated with fuel: Byl, T.D., Metge, D.W., Agyman, D.T., Bradley, M., Hileman, G., and Harvey, R.W., Journal of Cave and Karst Studies (IN PRESS).

New Publications

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