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This report describes the environmental characteristics and water-quality characteristics of 14 benchmark basins in the west-central United States. The information was compiled to aide in the interpretation and application of historical water-quality data collected through the Hydrologic Benchmark Network Program.
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USGS Numbered Series
Environmental characteristics and water quality of hydrologic benchmark network stations in the west-central United States, 1963-95
U.S. Department of the Interior, U.S. Geological Survey,