Edwards Aquifer Home - Edwards Aquifer Authority

Aquifer Conditions

Area Index Today Yesterday Ten Day
Bexar (J-17)
663.2
662.9
663.1
Uvalde (J-27)
861
861.1
861.1
Comal Springs
273
274
274
San Marcos
164
164
168

Provisional Daily water readings as of 9:00 AM
Last Updated on January 18 2022

10-Year Annual Recharge Average (2011-2020)
555,780 acre-feet

Please note: Due to possible instrument issues or physical disruptions at the measurement sites, data displayed is subject to revision, until it has been formally verified.

Critical Period/Drought Management

STEAM & School Education

At the EAA, our education program goal is to engage and inform eager, young minds about the Edwards Aquifer and the issues affecting it as our region’s primary water resource. Our presentations are targeted to specific audiences based on age and grade levels to encourage a common understanding and appreciation of our shared natural resource.

Aquifer Data

Water level data are critical for EAA’s management of the San Antonio Pool and the Uvalde Pool of the Edwards Aquifer. Water levels are measured around the clock using different devices monitoring wells throughout the aquifer. Water level data are used for many purposes, including as criteria for determining when to impose groundwater withdrawal restrictions on aquifer users during droughts and understanding and appreciating our shared natural resource.

In a continued response to Covid-19, the EAA will remain working in a telecommuting manner until further notice.
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