Records of Ground-Water Recharge and Discharge for the Edwards Aquifer in the San Antonio Area, Texas, 1934-77

Author Maclay RW and Rappmund RA (US Geological Survey)
Year 1979
Description Annual report for 1977 on recharge and discharge from the Edwards Aquifer issued by the Edwards Underground Water District
Report Number Bulletin 37
Publisher Edwards Underground Water District
Location Edwards Aquifer Balcones Fault Zone San Antonio Segment
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The average annual ground-water recharge to the Edwards aquifer in the San Antonio area, Texas, from 1934 through 1977 was about 589,200 acre-feet. A maximum annual recharge of 1,711,200 acre-feet occurred in 1958, and a minimum annual recharge of 43,700 acre-feet occurred in 1956.

A maximum annual discharge of 960,900 acre-feet occurred in 1977, and a minimum annual discharge of 388,800 acre-feet occurred in 1955. The maximum annual discharge by wells was 406,800 acre-feet in 1971.