Simulation of the ground-water flow system and proposed withdrawals in the northern part of Vekol Valley, Arizona
Water-Resources Investigations Report
86-4340
By: K.J. Hollett and J.R. Marie
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Abstract
Pursuant to the Ak-Chin Indian Community Water Rights Settlement Act (Public Law 95-328-enacted on July 28, 1978) a study was undertaken to assess the effect of proposed groundwater withdrawal from Federal lands near the reservation. The first area to be evaluated was the northern part of the Vekol Valley. The evaluation was made using a numerical model based on detailed geohydrologic concepts developed during the study. The numerical model, which was calibrated to steady-state and transient groundwater conditions in the northern part of Vekol Valley, adequately duplicated the conceptual model and was used to estimate the effect of withdrawing approximately 174,000 acre-ft from the system during a 25-yr period. At the end of the 25-yr period, the water level was drawn down an average of about 95 ft, and about 150,5000 acre-ft of water was removed from storage. The 150,500 acre-ft of water represents 43% of the estimated recoverable groundwater in storage. (Author 's abstract)
| Publication type | Report |
|---|---|
| Publication Subtype | USGS Numbered Series |
| Title | Simulation of the ground-water flow system and proposed withdrawals in the northern part of Vekol Valley, Arizona |
| Series title | Water-Resources Investigations Report |
| Series number | 86-4340 |
| DOI | 10.3133/wri864340 |
| Edition | - |
| Year Published | 1987 |
| Language | ENGLISH |
| Publisher | U.S. Geological Survey, |
| Description | v, 68 p. :ill., maps ;28 cm. |
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