Primary Water Source: Multiple Lakes
This region is known for its abundant surface water resources, which is where the region gets most of its supply. And the largest sources are reservoirs—including Lake O’ the Pines, Pat Mayse Lake, Wright Patman Lake, and Lake Bob Sandlin.

Caddo Lake
Key issues and approaches for Region D
Water quality and heavy reliance on surface water reservoirs continue to shape planning priorities in northeast Texas. The regional water plan—updated every five years and projected through 2080—includes municipal conservation efforts, groundwater well expansion, and additional surface water development to improve long-term reliability.
Dive deeper into the Interactive 2027 Draft State Water Plan and learn more about Region D.
