Parks & Recreation Department 

Edwards Aquifer Protection Program (EAPP)


Physical Address
Municipal Plaza Building
114 W. Commerce, 10th Floor
San Antonio, TX 78205

Mailing Address
P.O. Box 839966
San Antonio, TX 78283-3966

210.207.3003 (Phillip Covington)
210.207.2162 (Susan Courage)
210.207.2810 (David Bernal)
210.207.2815 (Grant Ellis)


  • PhilLip Covington Phillip Covington Email
    Special Projects Manager
  • Susan Courage Susan Courage Email
    Senior Management Analyst
  • David Bernal David Bernal Email
    Management Analyst
  • Grant Ellis Grant Ellis Email
    Natural Resources Manager

Entering the Edwards Aquifer Recharge Zone

Edwards Aquifer

The Edwards Aquifer provides San Antonio with an abundant source of groundwater vital to the livelihood of a growing population and an expanding economy. It stretches across thousands of acres over several counties in South Central Texas. Roughly 70 percent of the recharge zone is located west of Bexar County. See some photos of land protected by the Edwards Aquifer Protection Program.

Program Background

A short history of the COSA aquifer protection program. More

Protected Properties

A complete list of lands protected by COSA's aquifer protection program. More


What is a Conservation Easement? More

Edwards Aquifer Protection Program

Connect with the

Edwards Aquifer Protection Program

Email Edwards Aquifer Protection Program