National Water Quality Assessment

June 7, 2016--USGS map reveals long-term changes in America’s groundwater quality (Circle of Blue)

Chloride and nitrate concentrations are rising and arsenic levels are holding steady or falling. Those are two of the conclusions from a U.S. Geological Survey assessment of changes in the nation’s groundwater quality in the last two decades.


October 20, 2008--Six persistent herbicides found in wells across USA (Environmental News Service)

The widespread use of chemicals to control plant pests across the United States has been happening for decades, yet a newly released study shows that only a few herbicides have persisted in well water over the 10 years from 1993 to 2003.


July 31, 2008--Government pesticide and fertilizer data dropped (Environmental News Network)

The U.S. Department of Agriculture (USDA) has eliminated the only federal program that tracks the use of pesticides and fertilizers on American farms. The move has left scientists, industry groups, and public advocates surprised and confused about how to carry on their work without this free information.


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