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Publication Citation
| USGS Series | Circular |
|---|---|
| Report Number | 1112 |
| Title | Design of the National Water-Quality Assessment Program; occurrence and distribution of water-quality conditions |
| Edition | - |
| Language | ENGLISH |
| Author(s) | Gilliom, Robert J.; Alley, William M.; Gurtz, Martin E. |
| Year | 1995 |
| Originating office | |
| USGS Library Call Number | (200) Ci no.1112 |
| Physical description | vi, 33 p. :ill. (chiefly col.), col. maps ;28 cm. |
| ISBN |
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Abstract
The National Water-Quality Assessment Program assesses the status of and trends in the quality of the Nation's ground- and surface-water resources. The occurrence and distribution assessment component characterizes broad-scale water-quality conditions in relation to major contaminant sources and background conditions in each study area. The surface-water design focuses on streams. The ground-water design focuses on major aquifers, with emphasis on recently recharged ground water associated with human activities.
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