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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:  and 
https://doi.org/10.3133/wri864340

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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)

Suggested Citation

Hollett, K., and Marie, J., 1987, Simulation of the ground-water flow system and proposed withdrawals in the northern part of Vekol Valley, Arizona: U.S. Geological Survey Water-Resources Investigations Report 86-4340, v, 68 p. :ill., maps ;28 cm., https://doi.org/10.3133/wri864340.

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
Year Published 1987
Language ENGLISH
Publisher U.S. Geological Survey,
Description v, 68 p. :ill., maps ;28 cm.
Additional publication details