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Ground water quality from decade to decade

May 1, 2012  By

May 1, 2012, United States – There was no change in concentrations of chloride, dissolved solids, or
nitrate in ground water for more than 50 percent of well networks sampled
in a new analysis by the United States Geological Survey that compared samples from 1988-2000 to
samples from 2001-2010. | READ MORE

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