Digital-model evaluation of the ground-water resources in Ocotillo-Coyote Wells Basin, Imperial County, California

Water-Resources Investigations Report 77-30
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Abstract

A flow model using finite-element techniques has been constructed for an alluvial aquifer in the Ocotillo-Coyote Wells Basin, Imperial County, Calif. Natural recharge is about 2,600 acre-feet per year, and estimated ground water in storage is 640 ,000 acre-feet. Pumpage totaled 880 acre-feet in 1975. The computed decline from steady-state conditions in 1925 to December 1975 was 15 feet in Ocotillo. The projected decline from 1976 to 1995 with annual pumpage of 1,000 acre-feet is 6 feet and with annual pumpage of 2,000 acre-feet is 17 feet in Ocotillo. In the latter projection, continued pumping after 1995 may cause saline water to flow toward the potable ground water in and around Ocotillo. (Woodard-USGS)

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Publication type Report
Publication Subtype USGS Numbered Series
Title Digital-model evaluation of the ground-water resources in Ocotillo-Coyote Wells Basin, Imperial County, California
Series title Water-Resources Investigations Report
Series number 77-30
DOI 10.3133/wri7730
Year Published 1977
Language English
Publisher U.S. Geological Survey
Publisher location Reston, VA
Description v, 50 p.
Country United States
State California
County Imperial County
Other Geospatial Ocotillo-Coyote Wells Basin
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