The Concho River and Three Reservoirs Shape This County

The Concho system is not one three-way meeting. The Middle Concho feeds Twin Buttes Reservoir and joins the South Concho system upstream. In San Angelo, the North and South Concho meet and form the main Concho River. O.C. Fisher, Twin Buttes, and Lake Nasworthy are all part of the local water picture.

Water supply changes with storage, rainfall, and city operations. San Angelo publishes current water-source information, while the Texas Water Development Board keeps groundwater records. For land with a well, ask about the aquifer, well log, depth, yield, and recent performance instead of treating a blue line or nearby reservoir as a water guarantee.