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.
Rainfall enters the aquifer through fractures, caves, sinkholes and other features and replenishes the aquifer. However, rapid growth and development continue to impact the aquifer, reducing the number of recharge features needed to maintain San Antonio's primary water resource.
While rules are in place to regulate development and pollution, the best way to protect the aquifer is to conserve the sensitive and irreplaceable land located over its recharge and contributing zones.