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What are the highest recorded levels of the aquifer
October 9, 2025
The highest recorded value of water levels in the Edwards Aquifer was measured at the Bexar County Index Well (J-17) in June of 1992, when levels rose to 703.3 feet above mean sea level (ft amsl). For current and historical Edwards Aquifer levels, please visit the Aquifer Conditions page on the EAA Environmental Data Portal.

