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Trends in Arsenic Concentrations in the San Joaquin Valley

Arsenic is known to be a problem in groundwater used for drinking water supplies in the San Joaquin Valley. About 10% of the are of groundwater resources used for public supply contain more than the USEPA MCL of 10 µg/L. Most public-supply and domestic wells currently yield groundwater with arsenic levels below 3 µg/L and do not exhibit trends in concentration.

Albuquerque Region Nitrate Map Viewer

This interactive map summarizes historical groundwater sampling for nitrate in the Albuquerque Basin, potential sources of nitrate in groundwater, and other complementary data.

Baseflow Forecasts for Selected Sites in the United States

The Baseflow Forecast Web Tool allows you to access baseflow forecasts at thousands of locations across the Nation.

Tunnicliff wetland sites in Montana

Tunnicliff wetland sites in Montana

Sportsman wetland sites in Montana

Sportsman wetland sites in Montana

Silicon Mountain wetland sites in Montana

Silicon Mountain wetland sites in Montana

Schrieber wetland sites in Montana

 

Schrieber wetland sites in Montana

Rostad wetland sites in Montana

Rostad wetland sites in Montana

Richardson wetland sites in Montana

Richardson wetland sites in Montana

McGinnis Meadows wetland sites in Montana

McGinnis Meadows wetland sites in Montana

Wagner wetland sites in Montana

Wagner wetland sites in Montana

Easton wetland sites in Montana

Easton wetland sites in Montana