Priority Groundwater Management Areas
Program to identify areas of Texas experiencing, or expected to experience, critical groundwater problems and encourage the creation of Groundwater Conservation Districts (GCDs) for those areas. Relevant reports, studies, maps, and rules.
PGMA Information
To enable effective management of the state's groundwater resources in areas where critical groundwater problems exist or may exist in the future, the Legislature has authorized TCEQ, the Texas Water Development Board (TWDB) , and the Texas Parks and Wildlife Department (TPWD) to study, identify, and delineate Priority Groundwater Management Areas (PGMAs) and initiate the creation of GCDs within those areas, if necessary.
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Map of Texas PGMAs and Aquifers (January 2018)
- TCEQ PGMA GIS data can be found on the agency's GIS Data Hub (click on the "Water" link under the "Explore Our Programs" heading).
- Summary Description of PGMAs (February 2023)
- An interactive, online map ("Viewer") is available that allows users to obtain spatial information about designated PGMAs and created and confirmed GCDs. See the User Guide for more information.
- What is a PGMA ?
- Rules
- Legislative Reports (Since 1997)
- Studies, Study Areas, and Designated PGMAs
- PGMA Reports (Since 2004)
- GCD Recommendation Reports (Since 2008)
- GCDs Created in Designated PGMAs
What is a PGMA ?
A Priority Groundwater Management Area (PGMA) is an area designated and delineated by TCEQ that is experiencing, or is expected to experience, within 50 years, critical groundwater problems including shortages of surface water or groundwater, land subsidence resulting from groundwater withdrawal, or contamination of groundwater supplies.
Since the ultimate purpose of designating a PGMA is to ensure the management of groundwater in areas of the state with critical groundwater problems, a PGMA evaluation will consider the need for creating Groundwater Conservation Districts (GCDs, or "districts") and the different options for doing so. Such districts are authorized to adopt policies, plans, and rules that can address critical groundwater problems.
If a study area is designated as a PGMA, TCEQ will make a specific recommendation on GCD creation. State law authorizes the citizens in the PGMA two years to establish a GCD. However, if local action is not taken in this time frame, TCEQ is required to establish a GCD that is consistent with the original recommendation. Under either scenario, the resultant GCD would be governed by a locally elected board of directors.
For more information about PGMAs, see Texas A&M AgriLife Extension Service publication B-6191, Priority Groundwater Management Areas: Overview and Frequently Asked Questions . A hard copy or free electronic download of this publication is available after setting up an account.
Rules
The PGMA process provided in Chapter 35 of the Texas Water Code (TWC) is implemented by TCEQ rules that outline procedures for the designation of PGMAs and address issues related to the creation of GCDs in areas which have been designated as PGMAs. These TCEQ rules are contained in Title 30, Texas Administrative Code (TAC), §293.19 and §§294.41–294.44. The rules were amended in August 2012 to implement statutory changes made by the 82nd Legislature, 2011.
Legislative Reports (Since 1997)
Published every other year prior to the start of each legislative session, this report provides information to the executive and legislative leadership on activities undertaken during the preceding two years relating to the creation of Groundwater Conservation Districts (GCDs, or districts), the study and designation of Priority Groundwater Management Areas (PGMAs), and the operation of GCDs. This report is prepared by the Texas Commission on Environmental Quality (TCEQ, or Commission) and the Texas Water Development Board (TWDB) in order to fulfill the requirements of Texas Water Code (TWC), Section 35.018. Each of these reports is available in PDF format. (Help with PDF.)
- Priority Groundwater Management Areas and Groundwater Conservation Districts - Report to the 88th Texas Legislature (January 2023)
- Priority Groundwater Management Areas and Groundwater Conservation Districts - Report to the 87th Texas Legislature (January 2021)
- Priority Groundwater Management Areas and Groundwater Conservation Districts - Report to the 86th Texas Legislature (January 2019)
- Priority Groundwater Management Areas and Groundwater Conservation Districts - Report to the 85th Texas Legislature (January 2017)
- Priority Groundwater Management Areas and Groundwater Conservation Districts - Report to the 84th Texas Legislature (January 2015)
- Priority Groundwater Management Areas and Groundwater Conservation Districts, Report to the 83rd Texas Legislature (January 2013)
- Priority Groundwater Management Areas and Groundwater Conservation Districts, Report to the 82nd Texas Legislature (January 2011)
- Priority Groundwater Management Areas and Groundwater Conservation Districts, Report to the 81st Texas Legislature (January 2009)
- Priority Groundwater Management Areas and Groundwater Conservation Districts, Report to the 80th Texas Legislature (January 2007)
- Priority Groundwater Management Areas and Groundwater Conservation Districts, Report to the 79th Texas Legislature (January 2005)
- Priority Groundwater Management Areas and Groundwater Conservation Districts, Report to the 78th Texas Legislature (January 2003)
- Priority Groundwater Management Areas and Groundwater Conservation Districts, Report to the 77th Legislature (January 2001)
- Priority Groundwater Management Areas and Groundwater Conservation Districts; Report to the 76th Legislature (January 1999)
- Groundwater Conservation Districts - Report to the 75th Legislature (February 1997)
Studies, Study Areas, and Designated PGMAs
As of July 2009, 18 PGMA studies and five PGMA update studies have been completed. Eight study areas were determined to have, or were expected to have, critical groundwater problems and were designated as PGMAs:
- Bandera, Blanco, Gillespie, Kendall, Kerr, and parts of Comal, Hays, and Travis counties — the Hill Country PGMA;
- Parts of Reagan, Upton, and Midland counties — the Reagan, Upton, and Midland Counties PGMA;
- Swisher and parts of Briscoe and Hale counties — the Briscoe, Hale, and Swisher Counties PGMA;
- Parts of Dallam County — the Dallam County PGMA;
- Parts of El Paso County — the El Paso County PGMA;
- Northern Bexar County — added to the Hill Country PGMA;
- Bosque, Coryell, Hill, McLennan, and Somervell counties — the Central Texas – Trinity Aquifer – PGMA; and,
- Collin, Cooke, Dallas, Denton, Ellis, Fannin, Grayson, Hood, Johnson, Montague, Parker, Tarrant, and Wise counties — the North-Central Texas – Trinity and Woodbine Aquifers – PGMA.
Ten study areas were determined not to be PGMAs:
- Lower Rio Grande Valley Area;
- Fort Bend County Area;
- Orange-Jefferson Counties Area;
- Wintergarden Area;
- Southernmost High Plains Area;
- North Texas Alluvium and Paleozoic Outcrop Area;
- Hudspeth County Area;
- Williamson and Parts of Adjacent Areas;
- East Texas Area; and,
- Trans-Pecos Area.
PGMA Reports (Since 2004)
Each of these reports is available in PDF format. (Help with PDF.)
- East Texas Priority Groundwater Management Study Area : Updated Evaluation, June 2004.
- Trans-Pecos Priority Groundwater Management Study Area: Updated Evaluation, March 2005.
- Hudspeth County Priority Groundwater Management Study Area: March 2005.
- Part 1: Table of Contents, Executive Summary, and Introduction (cover–page 8)
- Part 2: Geology, Physiography, and Groundwater Resources (pages 9–20)
- Part 3: Natural Resources; State-Owned Lands; Water Use, Demand, Supply, and Availability; Stakeholder Participation; Area Water Concerns and Identified Management Strategies; Existing Water Planning, Regulatory, and Management Entities; Administrative Feasibility of Groundwater Management; Summary; Conclusions and Recommendations; and References (pages 21–77)
- Williamson, Burnet, and Northern Travis Counties Priority Groundwater Management Study Area: Updated Evaluation, November 2005.
- North-Central Texas - Trinity and Woodbine Aquifers - Priority Groundwater Management Study Area: Updated Evaluation, June 2007. The report recommends that Collin, Cooke, Dallas, Denton, Ellis, Fannin, Grayson, Hood, Johnson, Montague, Parker, Tarrant, and Wise counties be designated as the Northern Trinity and Woodbine Aquifers Priority Groundwater Management Area (PGMA) and that a regional, fee-funded Groundwater Conservation District (GCD) should be created. After contested case and public hearings, the Commission designated Collin, Cooke, Dallas, Denton, Ellis, Fannin, Grayson, Hood, Johnson, Montague, Parker, Tarrant, and Wise counties as the Northern Trinity and Woodbine Aquifers PGMA on February 18, 2000. The North-Central Texas PGMA Commission Order recommended a single, multi-county GCD over Collin, Cooke, Dallas, Denton, Ellis, Fannin, Grayson, and Johnson counties.
- Central Texas - Trinity Aquifer - Priority Groundwater Management Study Area: Updated Evaluation, December 2007. The Central Texas PGMA Commission Order recommended that a regional, combination-tax-based and fee-funded GCD is the most feasible, economic, and practicable option for conservation, protection, and management of the groundwater resources in the area.
GCD Recommendation Reports (Since 2008)
Each of these reports is available in PDF format. (Help with PDF.)
- Dallam County Priority Groundwater Management Area: December 2008. The report and petition recommended that identified areas of the Dallam County PGMA be added to an existing GCD. On February 17, 2010, the Commission issued an Order recommending that all of the three areas that were not included in a GCD in the Dallam County PGMA be added to the North Plains GCD. In March 2012, the 2012 Addendum recommended that identified areas of the Dallam County PGMA be added to an existing GCD. On August 7, 2012, the Commission issued an Order adding the Dallam County PGMA areas to the North Plains GCD.
- Hill Country Priority Groundwater Management Area: July 2010. The report and petition identified that the northwestern Comal County and southwestern Travis County portions of the PGMA were not in a groundwater conservation district. The report included a primary recommendation for Commission action to create a new three-county GCD to include the PGMA portions of Comal, Hays and Travis counties, and an alternative recommendation for Commission action to add the Comal PGMA territory to the Trinity Glen Rose Groundwater Conservation District and the Travis PGMA territory to the Barton Springs/Edwards Aquifer Conservation District. The Executive Director filed the petition with the State Office of Administrative Hearings (SOAH) in October 2010 and withdrew the primary recommendation and advanced the alternative recommendation in November 2010. The SOAH hearing was abated from May 2011 to June 2013. The Executive Director filed a request with SOAH on January 7, 2014 to withdraw the petition, cancel the hearing, and remand the petition back to the Executive Director. The administrative law judges granted the Executive Director’s request on January 27, 2014.
- Briscoe, Hale, and Swisher County Priority Groundwater Management Area : September 2013. The report identified the western portion of Briscoe County in the Briscoe, Hale, and Swisher County PGMA that is not currently part of a GCD. The report recommended that the area be added to the High Plains Underground Water Conservation District #1 (HPUWCD) as the most feasible, practicable, and economic means to achieve groundwater management in the Briscoe, Hale, and Swisher County PGMA. A preliminary hearing was held by the State Office of Administrative Hearings (SOAH) in Silverton, Texas on December 3, 2013. The SOAH judge took jurisdiction and determined the interested parties. A hearing on the merits was held by SOAH in Silverton, Texas on April 8, 2014. The SOAH judge filed a Proposal for Decision with the Commission on July 11, 2014. On December 12, 2014, the Commission approved an Order recommending the western portion of Briscoe County in the Briscoe, Hale, and Swisher County PGMA be added to the HPUWCD. The HPUWCD board of directors voted not to add the Briscoe PGMA on March 13, 2015.
- Reagan, Upton, and Midland County Priority Groundwater Management Area: February 2017. The report identified an area in northeastern Upton County and southeastern Midland County, in the Reagan, Upton, and Midland Priority Groundwater Management Area (PGMA), that is not within a Groundwater Conservation District (GCD). The report evaluated five options for groundwater management and recommended the option to add northeastern Upton County and southeastern Midland County to Glasscock GCD as the most feasible, practicable, and economic means to achieve groundwater management in the Reagan, Upton, and Midland PGMA.
GCDs Created in Designated PGMAs
Locally-initiated GCD (or "district") creation, or addition of territory to an existing district, has occurred in six of the designated PGMAs. Areas remain in four PGMAs that have not yet established a GCD. Successful district creation has not occurred in the designated parts of Briscoe, Dallas, Midland, and Upton counties.
- Map of Priority Groundwater Management Areas (PGMAs) and Groundwater Conservation Districts (GCDs) (September 2021)
- For a Summary Description of PGMAs, please see the link under PGMA Information above.