Aquifer Conditions

Aquifer Conditions
  Yesterday's Readings   Ten Day Average
Bexar (J-17) 645.1   645.3   643.5
Uvalde (J-27) 864.5   864.5   864.5
Comal Springs 184   185   182
San Marcos Springs 140   141   139

Provisional Daily water readings as of 9:00 AM
Last Updated on Aug 16 2018

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San Antonio Pool NA   0%*    
Includes all of Bexar and Medina counties and portions of Comal, Hays, Guadalupe, and Atascosa counties
Uvalde Pool NA   0%*    
Includes all of Uvalde County
*Withdrawal Reductions

Meet Your Directors

The EAA is governed by a 17-member board of directors representing the interests of constituents from across the Edwards Aquifer region. Fifteen directors serve as voting members of the board, elected from single-member districts to four-year terms.

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Board Meetings

Recharge Zone Regulations

To register your facility, please submit a completed Registration for a Facility Storing Regulated

Aquifer Zones
  • Regulated Substances

    Facilities in these environmentally sensitive areas are required to register with the EAA if they store an aggregate quantity exceeding 1,000 gallons or 10,000 pounds of regulated substances in containers 55-gallons or less in size.

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  • Storage Regulations

    Storage of certain regulated substances, above ground storage tanks (ASTs) and underground storage tanks (USTs), spill reporting, and a ban on coal tar sealants in Comal and Hays County.

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  • Best Management Practices (BMPs)

    Successful GCPs require implementation of Best Management Practices (BMPs)—practices proven to achieve measurable water savings.

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