The section of the Edwards Aquifer where the water pressure brings water to the surface naturally in springs and some wells.
Also called the Drainage Zone, the watersheds in this area drain into streams or areas where water is quickly absorbed into the Edwards Aquifer.
The part of the Edwards Aquifer with sinkholes and fractures where rainwater easily enters and refills the aquifer.
Water that is stored underneath the earth’s surface.
An underground resource of water, like the Edwards Aquifer in South Texas.