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National Water-Quality Assessment Program (U.S.) -- See Also the earlier heading USGS National Water Quality Assessment Pilot Program


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2 National Water-Quality Assessment Program (U.S.)   2
3 National Water-Quality Assessment Program (U.S.) -- Congresses. / http://id.loc.gov/authorities/names/n97085645 http://id.loc.gov/authorities/subjects/sh99001533 : Preparing for the third decade of the National Water-Quality Assessment Program / Committee on Preparing for the Third Decade (Cycle 3) of the National Water-Quality Assessment (NAWQA) Program, Water Science and Technology Board, Division on Earth and Life Studies, National Research Council of the National Academies  2012 1
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