P: (210) 222-2204 or 1-800-292-1047
Support EAC
Groundwater Users
Online Payments
Online Portal
Contact Us
Careers

Search...

About The EAA
Science & Aquifer Protection
- Science & Maps
- Aquifer Protection
News & Community
Habitat Conservation Plan
Education
EA Conservancy
Business Center

Program Documents
EAHCP Administrative Reports Edwards Aquifer Habitat Conservation Plan and Appendices EAHCP Incidental Take Permit Annual Reports Work Plans Environmental Impact Study Operating Agreements National Academies of Sciences Reports

Documents & Publications

US Fish and Wildlife Springflow Determinations, April 15, 1993

File:	USFWS_Springflow_Determinations_4-15-93.pdf
View Download

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.