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Publication Citation
| USGS Series | Water Supply Paper |
|---|---|
| Report Number | 2488 |
| Title | Use of a ground-water flow model with particle tracking to evaluate ground-water vulnerability, Clark County, Washington |
| Edition | - |
| Language | ENGLISH |
| Author(s) | Snyder, Daniel T.; Wilkinson, James M.; Orzol, Leonard L. |
| Year | 1998 |
| Originating office | |
| USGS Library Call Number | (200) G no.2488 |
| Physical description | vii, 63 p. :col. ill., col. maps ; 28 cm. |
| ISBN | 0607895349 (alk. paper) |
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Abstract
A ground-water flow model was used in conjunction with a particle-tracking program to demonstrate a method of evaluating ground-water vulnerability. The study area encompassed the part of the Portland Basin located in Clark County, Washington. A new computer program was developed that interfaces the particle-tracking program with a geographic information system (GIS). The GIS was used to display and analyze the particle-tracking results and to evaluate ground-water vulnerability by identifying recharge areas and their characteristics, determining the downgradient impact of land use at recharge areas, and estimating the age of ground water. The report presents a description of the methods used and the results of the evaluation of ground-water vulnerability.
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