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The Upper Colorado River; National Water-Quality Assessment Program; surface-water-monitoring network

April 1, 1997

The U.S. Geological Survey began full implementation of the National Water-Quality Assessment (NAWQA) program in 1991. The long-term goals of the NAWQA program are to (1) describe current water-quality conditions for a large part of the Nation's freshwater streams, rivers, and aquifers; (2) describe how water quality is changing over time; and (3) improve understanding of the primary natural and human factors that affect water-quality conditions (Leahy and others, 1990). To meet these goals, 60 study units representing the Nation's most important river basins and aquifers are being investigated. The program design balances the unique assessment requirements of individual study units with a nationally consistent design structure that incorporates a multiscale, interdisciplinary approach for assessment of surface and ground water.

Citation Information

Publication Year 1996
Title The Upper Colorado River; National Water-Quality Assessment Program; surface-water-monitoring network
DOI 10.3133/fs19196
Authors Norman E. Spahr, Nancy E. Driver, Verlin C. Stephens
Publication Type Report
Publication Subtype USGS Numbered Series
Series Title Fact Sheet
Series Number 191-96
Index ID fs19196
Record Source USGS Publications Warehouse
USGS Organization Colorado Water Science Center