Matthew C. Larsen

c. June 25, 2008 - Present Associate Director, Water, U.S. Geological Survey Videos: 1 c. January 1, 2005 - Present Chief Scientist, Hydrology, U.S. Geological Survey Videos: 0

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    Contaminants in U.S. Waters

    Federal environmental officials and others testified about water safety and emerging contaminants in the waters of theā€¦

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