TARPLEY, Texas–Margo Denke set out to rally the town when she learned that a Christian youth camp planned to build a wastewater treatment plant and discharge its effluent into the pristine Hill Country creek that ran through her small ranch. Denke, a 1981 graduate of Harvard Medical School who moved to the Hill Country in … Continue reading In Booming Central Texas, Wastewater Is Polluting Rivers and Streams