Aquifer Conditions

Area Index Today Yesterday Ten Day
Bexar (J-17)
686.7
686.9
686.8
Uvalde (J-27)
879.7
879.6
879.5
Comal Springs
384
384
382
San Marcos
249
248
247

Provisional Daily water readings as of 9:00 AM
Last Updated on Jan 22 2019

10-Year Annual Recharge Average (2008-2017)
501,833.700 acre-feet

Due to a lapse in appropriations, the majority of USGS websites may not be up to date and may not reflect current conditions. Websites displaying real-time data needed for public health and safety will be updated with limited support.
Critical Period/Drought Management

STEM & 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.