National Water-Quality Assessment Program

National Water-Quality Assessment Program's books

Water-Quality Assessment of the Apalachicola-Chattahoochee-Flint River Basin, Georgia, Alabama, and Florida, 1992-95 (U.S. Geological Survey Circular, 1157)

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Ground-Water Quality of the Northern High Plains Aquifer, 1997, 2002-04

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Development and Application of Regression Models for Estimating Nutrient Concentrations in Streams of the Conterminous United States, 1992-2001

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Multilevel Hierarchical Modeling of Benthic Macroinvertebrate Responses to Urbanization in Nine Metropolitan Regions Across the Conterminous United St

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Assessment of Nutrient Enrichment by Use of Algal-, Invertebrate-, and Fish-Community Attributes in Wadeable Streams in Ecoregions Surrounding the Gre

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Nutrient Trends in Streams and Rivers of the United States, 1993-2003

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Simulations of Groundwater Flow and Particle-Tracking Analysis in the Zone of Contribution to a Public-Supply Well in San Antonio, Texas

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The Quality of our Nation's Waters -- Agriculture- A River Runs Through It: The Connections Between Agriculture and Water Quality

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