Texas Administrative Code
Title 31 - NATURAL RESOURCES AND CONSERVATION
Part 10 - TEXAS WATER DEVELOPMENT BOARD
Chapter 356 - GROUNDWATER MANAGEMENT
Subchapter B - DESIGNATION OF GROUNDWATER MANAGEMENT AREAS
Section 356.21 - Designation of Groundwater Management Areas

The boundaries of the groundwater management areas are delineated using a geographic information system maintained and updated by the executive administrator. The digital files and a graphic representation of the groundwater management area boundaries are available on the agency's web site at http://www.twdb.texas.gov. The graphic representation includes groundwater management area boundaries superimposed on a map that includes Texas county lines and may be used for creating graphic representations of the groundwater management area boundaries and other associated geographic features. These files are controlling in the event of a conflict with any graphic representation.