| Abstract: | The concepts that are the basis for the U.S. Geological Survey‘s National Water-Quality Assessment (NAWQA) program began forming in the early 1980‘s. By 1986, a pilot phase was initiated to test and refine assessment concepts and in 1991, the NAWQA program began a multi-year transition to a fully operational program. The goals of the program are to describe the status and trends in the quality of a large representative part of the Nation‘s ground- and surface-water resources and to develop an understanding of the natural and human factors affecting the quality of these resources. This information will provide a sound scientific basis upon which water resources decision making at all governmental levels can be based. To meet its goals, the program will integrate water-quality information at local, regional, and national scales. The program will be perennial and consist of two major components -- study-unit investigations and national assessment activities. Investigations of surface- and ground-water resources of major regional hydrologic systems (river basins and aquifer systems) each covering 1200 to about 60,000 square miles, will be conducted on a rotating basis for 60 study units located throughout the Nation. Key findings from these study-unit investigations will be used along with other information to provide issue-oriented water-quality assessments of regional and national interest. |
| Genre: | Conference Paper |
| ProdID: | 70016760 |
| Citation Author: | Leahy, P. Patrick; Wilber, William, G. |
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| Citation End Page: | 717 |
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| Citation Language: | English |
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| Citation Number Of Pages: | 7 |
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| Citation Publisher: | Publ by ASCE |
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| Citation Search Results Text: | National Water-Quality Assessment (NAWQA) program. A basis for water-resource policy development; 1991; Conference Paper; Leahy, P. Patrick; Wilber, William, G. |
| Citation Start Page: | 711 |
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| Citation Year: | 1991 |
| Type: | citation/reference |
| Text: | National Water-Quality Assessment (NAWQA) program. A basis for water-resource policy development; 1991; Conference Paper; Leahy, P. Patrick; Wilber, William, G. |
| URL (THUMBNAIL): | http://pubs.er.usgs.gov/thumbnails/outside_thumb.jpg |
| Date Other: | Tue, 1 Jan 1991 00:00 -0600 |
| Publisher: | Publ by ASCE |
