Annual summary of ground-water conditions in Arizona, spring 1977 to spring 1978
Water-Resources Investigations Report
78-144
By: Water Resources Division, U.S. Geological Survey
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Abstract
The withdrawal of ground water was about 5.5 million acre-feet in Arizona in 1977. About 4.7 million acre-feet of ground water was used for the irrigation of crops in 1977. The Salt River Valley and the lower Santa Cruz basin are the largest agricultural areas in the State. For 1973-77, ground-water withdrawal in the two areas was about 8.1 and 5.1 million acre-feet, respectively, and, in general, water levels are declining. Other areas in which ground-water withdrawals have caused water-level declines are the Willcox, San Simon, upper Santa Cruz, Avra Valley, Gila Bend, Harquahala Plains, and McMullen Valley areas. Two small-scale maps of Arizona show (1) pumpage of ground water by areas and (2) the status of the ground-water inventory in the State. The main map, scale 1:500 ,000, shows potential well production, depth to water in selected wells in spring 1978, and change in water level in selected wells from 1973 to 1978. The brief text that accompanies the maps summarizes the current ground-water conditions in the State. (Woodard-USGS)
Study Area
| Publication type | Report |
|---|---|
| Publication Subtype | USGS Numbered Series |
| Title | Annual summary of ground-water conditions in Arizona, spring 1977 to spring 1978 |
| Series title | Water-Resources Investigations Report |
| Series number | 78-144 |
| DOI | 10.3133/wri78144 |
| Year Published | 1978 |
| Language | English |
| Publisher | U.S. Geological Survey |
| Publisher location | Reston, VA |
| Description | 2 Plates: 24.89 x 38.32 inches and 24.68 x 37.95 inches |
| Country | United States |
| State | Arizona |
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