Groundwater Management Area 7
Contact Information
Sutton County Underground Groundwater Conservation District
Meredith E. Allen
GMA Coordinator
General Manager
Sutton County Underground Water Conservation District
301 South Crockett Avenue
Sonora, Texas 76950
Telephone: 325-387-2369
Fax: 325-387-5737
Email: manager@suttoncountyuwcd.org
Regional Water Planning Group Representatives:
Region F: Rhetta Yanez
Region G: Dale Adams
Region J: Genell Hobbs
Region K: Paul Tybor
Region L: Vic Hilderbran
2021 Joint Planning Desired future conditions and modeled available groundwater
Summary of Desired Future Conditions for GMA 7
Summary of Modeled Available Groundwater for GMA 7 by Groundwater Conservation District
Summary of Modeled Available Groundwater for GMA 7 by County
Groundwater Conservation Districts (20 either partially or completely included)
- Coke County Underground Water Conservation District
- Crockett County Groundwater Conservation District
- Glasscock Groundwater Conservation District
- Hickory Underground Water Conservation District No. 1
- Hill Country Underground Water Conservation District
- Irion County Water Conservation District
- Kimble County Groundwater Conservation District
- Kinney County Groundwater Conservation District
- Lipan-Kickapoo Water Conservation District
- Lone Wolf Groundwater Conservation District
- Menard County Underground Water District
- Middle Pecos Groundwater Conservation District
- Plateau Underground Water Conservation And Supply District
- Real-Edwards Conservation And Reclamation District
- Santa Rita Underground Water Conservation District
- Sterling County Underground Water Conservation District
- Sutton County Underground Water Conservation District
- Terrell County Groundwater Conservation District
- Uvalde County Underground Water Conservation District
- Wes-Tex Groundwater Conservation District
Other Districts
- Edwards Aquifer Authority
Additional Groundwater Conservation District Information
Exempt Groundwater Use Estimates
Aquifers(either partially or completely included)
Major Aquifers
Minor Aquifers
- 2007 State Water Plan: Blaine
- 2007 State Water Plan: Capitan Reef Complex
- 2007 State Water Plan: Dockum
- 2007 State Water Plan: Ellenburger-San Saba
- 2007 State Water Plan: Hickory
- 2007 State Water Plan: Igneous
- 2007 State Water Plan: Lipan
- 2007 State Water Plan: Marble Falls
- 2007 State Water Plan: Rustler
Component Counties
GMA 7 Reports
| ID | Date | Type | Description |
|---|---|---|---|
| GR16-026_MAG_v2 | 9/21/2018 | GAM run - MAG | Modeled available groundwater estimates for the aquifers in Groundwater Management Area 7 |
| GR17-013_MP | 8/15/2017 | GAM run - Management Plan | Management plan information for Irion County WCD |
| R-288 | 5/1/1984 | TWDB numbered report | Evaluating the Ground-Water Resources of the High Plains of Texas, Volumes 1-4 |
| R-341 | 9/1/1993 | TWDB numbered report | The High Plains Aquifer System of Texas, 1980 to 1990 - Overview and Projections |
| R-357 | 8/1/2003 | TWDB numbered report | Characterization of Playa Basins on the High Plains of Texas |
| R-359 | 12/1/2003 | TWDB numbered report | The Groundwater Resources of the Dockum Aquifer in Texas |
| HA-10 | 1/1/1998 | Hydrologic atlas | Updated Water-Quality Evaluation of the Ogallala Aquifer, Including Selected Metallic and Non-Metallic Inorganic Constituents |
| R-096 | 6/1/1969 | TWDB numbered report | A Statistical Study of the Depth of Precipitable Water in Western Texas and Eastern New Mexico |
| HA-03 | 1/1/1995 | Hydrologic atlas | Water Quality in the Edwards-Trinity (Plateau) Aquifer, Edwards Plateau and Trans-Pecos, Texas |
| GMA7_DFC_01 | 7/29/2010 | DFC submission | Desired future conditions for the Capitan Reef Complex, Dockum, Edwards-Trinity (Plateau), Ellenburger-San Saba, Hickory, Lipan, Marble Falls, Ogallala, and Rustler aquifers |
| HA-09 | 1/1/1998 | Hydrologic atlas | Water Quality in the Rustler Aquifer |
| HA-08 | 1/1/1997 | Hydrologic atlas | Water Quality in the Capitan Reef Aquifer |
| R-022 | 5/11/1966 | TWDB numbered report | Water-Delivery and Low-Flow Studies, Pecos River, Texas - Quantity and Quality, 1964 and 1964 |
| R-255 | 9/1/1980 | TWDB numbered report | Occurrence and Quality of Ground Water in the Edwards-Trinity (Plateau) Aquifer in the Trans-Pecos Region of Texas |
| LP-214 | 2/1/1995 | Limited publication | Evaluation of Ground-Water Quality in Texas Counties Bordering the Rio Grande |
| AA08-06 | 6/17/2009 | Aquifer assessment | Desired future condition scenarios for the Edwards-Trinity (Plateau) Aquifer - Glasscock, Reagan, Upton and Midland counties |
| B-6310 | 12/1/1973 | Groundwater bulletin | Reconnaissance Investigation of the Ground-Water Resources of the Brazos River Basin, Texas |
| B-6212 | 7/1/1962 | Groundwater bulletin | Geology and Ground-Water Resources of Uvalde County, Texas |
| B-6216 | 12/1/1962 | Groundwater bulletin | Geology and Ground-Water Resources of Kinney County, Texas |
| R-047 | 5/1/1967 | TWDB numbered report | Occurrence and Quality of Ground Water in Crockett County, Texas |
| R-050 | 6/1/1967 | TWDB numbered report | Ground-Water Resources of Mitchell and Western Nolan Counties, Texas |
| R-057 | 9/1/1967 | TWDB numbered report | Occurrence and Quality of Ground Water in Coleman County, Texas |
| R-235 | 7/1/1979 | TWDB numbered report | Occurrence, Availability, and Chemical Quality of Ground Water in the Edwards Plateau Region of Texas |
| R-273 | 1/1/1983 | TWDB numbered report | Ground-Water Availability of the Lower Cretaceous Formations in the Hill Country of South-Central Texas |
| R-353 | 9/1/2000 | TWDB numbered report | Groundwater Availability of the Trinity Aquifer, Hill Country Area, Texas: Numerical Simulations through 2050 |
| R-360 | 2/9/2004 | TWDB numbered report | Conference Proceedings: Aquifers of the Edwards Plateau |
| R-224 | 10/1/1978 | TWDB numbered report | Occurrence, Quantity, and Quality of Ground Water in Taylor County, Texas |
| R-337 | 3/1/1992 | TWDB numbered report | Evaluation of Water Resources in Parts of the Rolling Prairies Region of North-Central Texas |
| R-342 | 8/1/1993 | TWDB numbered report | Water-Quality Evaluation of the Ogallala Aquifer, Texas |
| R-346 | 3/1/1996 | TWDB numbered report | The Paleozoic and Related Aquifers of Central Texas |
| R-339 | 8/1/1992 | TWDB numbered report | Evaluation of Ground-Water Resources of the Paleozoic and Cretaceous Aquifers in the Hill Country of Central Texas |
| R-330 | 7/1/1991 | TWDB numbered report | Evaluation of Ground-Water Resources in the Southern High Plains of Texas |
| R-180 | 3/1/1974 | TWDB numbered report | Reconnaissance of the Chemical Quality of Surface Waters of the Rio Grande Basin, Texas |
| R-071 | 3/1/1968 | TWDB numbered report | Reconnaissance of the Chemical Quality of the Surface Waters of the Colorado River Basin, Texas |
| B-6519 | 8/1/1965 | Groundwater bulletin | Ground-Water Conditions in Menard County, Texas |
| B-6017 | 2/1/1961 | Groundwater bulletin | Ground-Water Geology of the Hickory Sandstone Member of the Riley Formation, McCulloch County, Texas |
| B-6208 | 4/1/1962 | Groundwater bulletin | Ground-Water Geology of Edwards County, Texas |
| R-078 | 5/1/1968 | TWDB numbered report | Ground-Water Resources of Upton County, Texas |
| R-132 | 8/1/1971 | TWDB numbered report | Water Well and Ground-Water Chemical Analysis Data, Schleicher County, Texas |
| R-145 | 4/1/1972 | TWDB numbered report | Water Wells and Ground-Water Chemical Analysis Data, Reagan County, Texas |
| R-146 | 4/1/1972 | TWDB numbered report | Water Well and Ground-Water Chemical Analysis Data, Irion County, Texas |
| R-148 | 5/1/1972 | TWDB numbered report | Water Well and Ground-Water Chemical Analysis Data, Sterling County, Texas |
| R-166 | 3/1/1973 | TWDB numbered report | Ground-Water Resources of Coke County, Texas |
| R-172 | 6/1/1973 | TWDB numbered report | Ground-Water Resources of Val Verde County, Texas |
| GR11-013_MP | 10/4/2011 | GAM run - Management Plan | Management plan information for Menard County UWCD |
| AA08-07 | 8/31/2010 | Aquifer assessment | Desired future condition scenarios for the Hickory Aquifer in Groundwater Management Area 7 |
| AA08-08 | 8/31/2010 | Aquifer assessment | Desired future condition scenarios for the Ellenburger-San Saba Aquifer in Groundwater Management Area 7 |
| AA10-04 | 9/10/2010 | Aquifer assessment | Desired future condition scenarios for the Ellenburger-San Saba Aquifer in Groundwater Management Area 7 |
| AA10-05 | 9/10/2010 | Aquifer assessment | Desired future condition scenarios for the Hickory Aquifer in Groundwater Management Area 7 |
| GR11-003_MP | 7/29/2011 | GAM run - Management Plan | Management plan information for Santa Rita UWCD |
| GT10-033 | 1/3/2011 | GAM task | Average drawdown for the Edwards-Trinity (Plateau) and Pecos Valley aquifers within management zones in Middle Pecos GCD |
| GR10-026_MP | 8/24/2010 | GAM run - Management Plan | Management plan information for Sterling County UWCD |
| GT10-027_D | 2/9/2011 | GAM task | Predictive simulations for the Edwards (Balcones Fault Zone) and Edwards-Trinity (Plateau) aquifers in Kinney County GCD |
| GR10-022_MP | 7/9/2010 | GAM run - Management Plan | Management plan information for Uvalde County UWCD |
| GT10-025 | 6/10/2010 | GAM task | Predictive simulations for the Dockum Aquifer |
| GR10-018_MP | 7/27/2010 | GAM run - Management Plan | Management plan information for Menard County UWD |
| GR10-002 | 9/3/2010 | GAM run | Simulations of current operational practices in the Lipan Aquifer in Groundwater Management Area 7 |
| GR10-001 | 6/21/2010 | GAM run | Predictive simulations for the Dockum Aquifer in Groundwater Management Area 7 |
| GR09-027 | 6/21/2010 | GAM run | Predictive simulations for the Ogallala and Edwards-Trinity (High Plains) aquifers in Groundwater Management Area 7 |
| GR09-013_MP | 8/6/2009 | GAM run - Management Plan | Management plan information for Wes-Tex GCD |
| GR08-086_MP | 1/5/2009 | GAM run - Management Plan | Management plan information for Real Edwards Conservation and Reclamation District |
| GR09-035_D | 8/7/2010 | GAM run | Predictive simulations for the Edwards-Trinity (Plateau) and Pecos Valley aquifers in Groundwater Management Area 7 |
| GR08-075_MP | 1/23/2009 | GAM run - Management Plan | Management plan information for Middle Pecos GCD |
| GR08-074_MP | 12/9/2008 | GAM run - Management Plan | Management plan information for Kimble County GCD |
| GR08-067_MP | 9/3/2008 | GAM run - Management Plan | Management plan information for the Edwards Aquifer Authority |
| GR08-052_MP | 7/11/2008 | GAM run - Management Plan | Management plan information for Sutton County UWCD |
| GR08-051_MP | 7/9/2008 | GAM run - Management Plan | Management plan information for Plateau UWC and Supply District |
| GR08-048_MP | 1/23/2009 | GAM run - Management Plan | Management plan information for Lone Wolf GCD |
| GR08-034_MP | 5/28/2008 | GAM run - Management Plan | Management plan information for Hickory UWCD No. 1 |
| GR08-027_MP | 5/21/2008 | GAM run - Management Plan | Management plan information for Crockett County GCD |
| GR08-025_MP | 5/21/2008 | GAM run - Management Plan | Management plan information for Glasscock GCD |
| GR08-013_MP | 4/8/2008 | GAM run - Management Plan | Management plan information for Sterling County UWCD |
| GR08-012_MP | 4/8/2008 | GAM run - Management Plan | Management plan information for Irion County WCD |
| GR08-008_MP | 1/25/2008 | GAM run - Management Plan | Management plan information for Lipan-Kickapoo GCD |
| GR07-039_MP | 4/8/2008 | GAM run - Management Plan | Management plan information for Coke County GCD |
| GR07-037 | 4/9/2008 | GAM run | Predictive simulation for the Edwards-Trinity (Plateau) Aquifer in Groundwater Management Area 7 |
| GR07-032 | 12/11/2007 | GAM run | Historic and predictive simulation for the Edwards-Trinity (Plateau) Aquifer in Groundwater Management Area 7 |
| GR07-022_MP | 6/5/2007 | GAM run - Management Plan | Management plan information for Santa Rita UWCD |
| GR07-013 | 10/5/2007 | GAM run | Predictive simulation for the Lipan Aquifer in Groundwater Management Area 7 |
| GR07-010 | 3/23/2007 | GAM run | Recharge calculations for the Edwards (Balcones Fault Zone) and Edwards-Trinity (Plateau) aquifers in Kinney County GCD |
| GR07-003 | 6/13/2007 | GAM run | Predictive simulation for the Edwards-Trinity (Plateau) Aquifer in Groundwater Management Area 7 |
| GR06-015_MP | 9/1/2011 | GAM run - Management Plan | Management plan information for Lipan Kickapoo WCD |
| GR06-016 | 2/2/2007 | GAM run | Effects on river flow of various pumping scenarios in the Edwards-Trinity (Plateau) Aquifer in Terrell and Val Verde counties |
| GR06-011_MP | 7/12/2006 | GAM run - Management Plan | Management plan information for Real-Edwards Conservation and Reclamation District |
| GR05-037_MP | 11/18/2005 | GAM run - Management Plan | Management plan information for Sterling County UWCD |
| GR05-030 | 7/15/2005 | GAM run | Recharge information for the Carrizo-Wilcox, Edwards-Trinity (Plateau) and Trinity aquifers in Uvalde County |
| GR05-008 | 2/17/2005 | GAM run | Water budget for Reagan County |
| GR05-007 | 2/11/2005 | GAM run | Recharge areas in Kinney County's portions of Edwards BFZ Aquifer and Edwards-Trinity (Plateau) Aquifer (Nueces River and Rio Grande basins) |
| GR04-020 | 10/7/2004 | GAM run | Effects of a new well field in Middle Pecos GCD |
| GR04-017 | 10/7/2004 | GAM run | Recharge rates for the Edwards-Trinity (Plateau) Aquifer in Nolan County (Wes-Tex GCD) |
| GR03-016 | 8/11/2003 | GAM run | Average annual recharge and total available storage for the Edwards-Trinity (Plateau) Aquifer in Emerald UWCD |
| GR03-003 | 5/15/2003 | GAM run | Effects of increasing well production in western Midland county |
| GR10-033_MAG | 11/18/2011 | GAM run - MAG | Modeled available groundwater estimates for the Ogallala Aquifer in Groundwater Management Area 7 |
| GR02-001 | 3/21/2003 | GAM run | County water budget for the Trinity (Hill Country) Aquifer GAM |
| GR02-002 | 3/21/2003 | GAM run | County water budget for the Trinity (Hill Country) Aquifer GAM |
| AA08-05 | 10/22/2009 | Aquifer assessment | Desired future condition scenarios for the Edwards-Trinity (Plateau) Aquifer in Groundwater Management Area 7 |
| GR12-010_MP | 7/2/2012 | GAM run - Management Plan | Management plan data for Lipan-Kickapoo WCD |
| GR12-004_MP | 7/20/2012 | GAM run - Management Plan | Management plan data for Crockett County GCD |
| AA10-13_MAG | 11/18/2011 | Aquifer assessment MAG | Modeled available groundwater for the Rustler Aquifer in Groundwater Management Area 7 |
| AA10-10_MAG | 11/1/2011 | Aquifer assessment MAG | Modeled available groundwater for the Ellenburger-San Saba Aquifer in Groundwater Management Area 7 |
| AA10-11_MAG | 11/1/2011 | Aquifer assessment MAG | Modeled available groundwater for the Hickory Aquifer in Groundwater Management Area 7 |
| AA10-12_MAG | 11/1/2011 | Aquifer assessment MAG | Modeled available groundwater for the Marble Falls Aquifer in Groundwater Management Area 7 |
| AA10-09_MAG | 11/18/2011 | Aquifer assessment MAG | Modeled available groundwater for the Capitan Reef Complex Aquifer in Groundwater Management Area 7 |
| AA10-13_MAG | 11/18/2011 | Aquifer assessment MAG | Modeled available groundwater for the Rustler Aquifer in Groundwater Management Area 7 |
| GR08-026_MP | 5/7/2008 | GAM run - Management Plan | Management plan information for Hill Country UWCD |
| GR12-015_MP | 9/4/2012 | GAM run - Management Plan | Management plan data for Hill Country UWCD |
| GR12-020_MP | 10/19/2012 | GAM run - Management Plan | Management plan data for Glasscock GCD |
| CR-0904830820 | 4/1/2010 | Contract report | Application of PEST to Re-Calibrate the Groundwater Availability Model for the Edwards-Trinity (Plateau) and Pecos Valley Aquifers |
| AA10-26_MAG | 8/19/2011 | Aquifer assessment - MAG | Modeled available groundwater for the Austin Chalk Aquifer in Groundwater Management Area 7 |
| GR10-043_MAG_Ver2 | 11/12/2012 | GAM run - MAG | Modeled available groundwater for the Edwards-Trinity (Plateau), Pecos Valley, and Trinity aquifers in Groundwater Management Area 7 |
| GR12-019_MP | 11/16/2012 | GAM run - Management Plan | Management plan data for Coke County UWCD |
| GR12-017_MP | 11/16/2012 | GAM run - Management Plan | Management plan data for Irion County WCD |
| GR10-040_MAG_Ver2 | 2/22/2012 | GAM run - MAG | Modeled available groundwater estimates for the Dockum Aquifer in Groundwater Management Area 7 |
| GR10-062_MAG_Ver2 | 2/28/2012 | GAM run - MAG | Modeled available groundwater estimates for the Lipan Aquifer in Groundwater Management Area 7 |
| GR12-014_MP | 2/11/2013 | GAM run - Management Plan | Management plan data for Kinney County GCD |
| GR13-012_MP | 4/23/2013 | GAM run - Management Plan | Management Plan data for Terrell County GCD |
| GR13-015_MP | 6/27/2013 | GAM run - Management Plan | Management Plan data for Lone Wolf GCD |
| GR13-018_MP | 7/3/2013 | GAM run - Management Plan | Management Plan data for Kimble County GCD |
| GR13-005_MP | 7/17/2013 | GAM run - Management Plan | Management Plan Information for Sutton County UWCD |
| GR13-009_MP | 7/17/2013 | GAM run - Management Plan | Management Plan Information For Plateau UWCD and SD |
| GT13-030_TERS | 10/2/2013 | GAM task - Total Estimated Recoverable Storage | Total Estimated Recoverable Storage for aquifers in Groundwater Management Area 7 |
| GR13-023_MP | 12/18/2013 | GAM run - Management Plan | Management plan information for Real-Edwards Conservation and Reclamation District |
| GR13-030_MP | 2/18/2014 | GAM run - Management Plan | Management plan data for Wes-Tex GCD |
| GR14-010_MP | 3/26/2014 | GAM run - Management Plan | Management Plan data for Middle Pecos GCD |
| GR15-009_MP | 3/18/2015 | GAM run - Management Plan | Management Plan data for Edwards Aquifer Authority |
| GR15-008_MP | 7/2/2015 | GAM run - Management Plan | Management plan data for Menard County UWCD |
| GR15-006_MP | 6/26/2015 | GAM run - Management Plan | Management Plan data for Uvalde County UWCD |
| GR17-028_MP | 3/27/2017 | GAM run - Management Plan | Management plan information for Menard County UWD |
| GR17-012_MP | 3/28/2017 | GAM run - Management Plan | Management plan information for Sterling County UWCD |
| GR17-022_MP | 3/28/2017 | GAM run - Management Plan | Management plan information for Crockett County GCD |
| GR17-002_MP | 4/4/2017 | GAM run - Management Plan | Management plan information for Santa Rita UWCD |
| GR17-005_MP | 5/26/2017 | GAM run - Management Plan | Management plan information for Lipan-Kickapoo Water Conservation District |
| GR17-009_MP | 1/30/2018 | GAM run - Management Plan | Management plan information for Hill Country UWCD |
| GR17-014_MP | 6/1/2018 | GAM run - Management Plan | Management plan information for Coke County UWCD |
| GR13-010_MP | 6/4/2018 | GAM run - Management Plan | Management plan information for Hickory UWCD no.1 |
| GR18-007_MP | 7/13/2018 | GAM run - Management Plan | Management plan information for Hickory UWCD #1 |
| GR18-015_MP | 9/28/2018 | GAM run - Management Plan | Management plan information for Kimble County GCD |
| GR18-022_MP | 2/11/2019 | GAM run - Management Plan | Management plan information for Glasscock GCD |
| GR19-004_MP | 2/27/2019 | GAM run - Management Plan | Management plan information for Lone Wolf GCD |
| GR19-012_MP | 6/13/2019 | GAM run - Management Plan | Management plan information for Wes-Tex GCD |
| GR19-021_MP | 2/20/2020 | GAM run - Management Plan | Management plan information for Middle Pecos GCD |
| GR21-004_MP | 10/11/2021 | GAM run - Management Plan | Management plan information for Menard County UWCD |
| GR21-012_MAG | 8/12/2022 | GAM run - MAG | Modeled available groundwater estimates for the aquifers in Groundwater Management Area 7 |
| GR22-011_MP | 11/8/2022 | GAM run - Management Plan | Management plan information for Kinney County GCD |
| GR22-013_MP | 11/8/2022 | GAM run - Management Plan | Management plan information for Lipan-Kickapoo WCD |
| GR22-014_MP | 1/23/2023 | GAM run - Management Plan | Management plan information for Irion County WCD |
| GR22-016_MP | 1/31/2023 | GAM run - Management Plan | Management plan information for Sterling County UWCD |
| Special Legislative Report | 12/7/2018 | Special legislative report | Overview of Groundwater Conditions in Val Verde County, Texas |
| GMR23-01; Special Legislative Report | 2/10/2023 | Groundwater management report; special legislative report | Groundwater Use Planning Strategies and Best Management Practices for Drought Scenarios, Val Verde County, Texas |
| GR23-011_MP | 06/01/2023 | GAM run - Management Plan | Management plan information for Sutton County UWCD |
| GR23-002_MP | 07/17/2023 | GAM run - Management Plan | Management plan information for Terrell County GCD |
| GR23-019_MP | 08/16/2023 | GAM run - Management Plan | Management plan information for Hickory UWCD #1 |
| GR23-006_MP | 08/23/2023 | GAM run - Management Plan | Management plan information for Crockett County GCD |
| Contract-8-REC-003 | February 1988 | TWDB contract report | Evaluation of the Hickory Aquifer and Its Relationship to Katemcy Creek and Its Major Tributaries for Beneficial Artificial Recharge, McCulloch and Mason Counties, Texas |
| GR23-021_MP | 09/22/2023 | GAM run - Management Plan | Management plan information for Coke County UWCD |
| GR23-004_MP | 05/31/2023 | GAM run - Management Plan | Management plan information for Hill Country UWCD |
| GR23-023_MP | 12/14/2023 | GAM run - Management Plan | Management plan information for Plateau Underground Water Conservation & Supply District |
| GR23-026_MP | 01/19/2024 | GAM run - Management Plan | Management plan information for Kimble County GCD |
| GR24-005_MP | 03/01/2024 | GAM run - Management Plan | Management plan information for Lone Wolf GCD |