Shapefiles

The Edwards Aquifer Authority maintains shapefiles that can be used with GIS Software. These include Edwards Aquifer Zones, EAA Districts, EAA Jurisdictional Boundary, Storage Tank Regulations, and Spill Reporting & Regulated Substances

About Us

The Edwards Aquifer Authority is a groundwater district, mandated by the 1993 Edwards Aquifer Authority Act. The Act grants all of the powers, rights, and privileges necessary to manage, conserve, preserve, and protect the aquifer. The EAA regulates the portion of the Balcones Fault Zone Edwards Aquifer – a jurisdictional area that provides water to over 2.5 million people, and covers more than 8,000 square miles across eight counties. These include all of Uvalde, Medina, and Bexar counties as well as parts of Atascosa, Caldwell, Guadalupe, Comal, and Hays counties.

Aquifer Related News

Terms of Use

Images should not be used without prior permission or consent from the Edwards Aquifer Authority.

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Shapefiles

Director Districts

Jurisdictional Boundary

Aquifer Zones

Coal Tar Ban Area

Spill Reporting & Regulated Substances

Storage Tank Regulations

BSEACD

BSEACD with Annex Area

PCCD

HTGCD

As temperatures climb, Texas must mitigate methane emissions

San Solomon Springs Studies

Cómo la sequía puede afectar el Acuífero Edwards y condados de la región

How has recent rain impacted South Texas’ drought status? Barely, experts say.