“These wells are being drilled THROUGH and BELOW the Edwards Aquifer into the underlying Trinity Aquifer, the aquifer that supplies the groundwater for western Hays County, including the Wimberley and Dripping Springs areas (not to mention most of Blanco, Kendall, Bandera and many other Texas counties).” Learn more from CARD about this critical Hill Country issue in an area that is not covered by a Groundwater Conservation District. More from CARD.