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Toxic Substances Hydrology Program

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The Toxic Substances Hydrology Program conducts research on three categories of contamination issues:

Subsurface Point-Source Contamination

Subsurface Point-Source Contamination

Watershed- and Regional-Scale Contamination

Other Fundamental Research and Methods Development
     
Map of Toxics Program Study Sites
Locations of Toxics Program Investigations
(Click on map for larger version)

An abandoned mine shaft leaking acidic, metal rich water in the St. Kevin Gulch Watershed, Colo. USGS scientists have studied the processes that case spatial and temporal variability of metal concentrations in the watershed's streams
An abandoned mine shaft leaking acidic, metal rich water in the St. Kevin Gulch Watershed, Colo. USGS scientists have studied the processes that case spatial and temporal variability of metal concentrations in the watershed's streams -- from the Hardrock Mining in Rocky Mountain Terrain -- Upper Arkansas River, Colorado Photo Gallery
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