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Northern Segment of the Edwards BFZ

The Northern Segment of the Edwards Balcones Fault Zone aquifer is the least studied and therefore probably the least understood portion of the Edwards Balcones Fault Zone aquifer. Even though it is less prolific than the San Antonio segment, it is the primary water supply to much of the population in and around the Salado Creek basin in Bell County. In addition, the aquifer is connected to important springs in the area that are an attraction to visitors in Salado Village and the aquifer and its springs provide habitat to organisms such as the Salado Salamander which is proposed to be listed as an endangered species. In order to provide an adequate quantity and quality of water to satisfy human consumption, maintain creek aesthetics, and provide suitable habitat for organisms such as the Salado Salamander, it is critical to understand the hydrogeology, especially the recharge, in the this portion of the aquifer. It is important for man to strive to live “in harmony” with karst rather than just live “on karst” (Brinkman and Parize, 2012). This study summarizes our current understanding of the karst hydrogeology in the Northern Segment of the Edwards Balcones Fault Zone aquifer and recommends where more data and research are preferred.