Groundwater Management Area 8
Groundwater Management Area 8 Webpage
Contact Information
Central Texas Groundwater Conservation District
Mitchell Sodek, Chair
General Manager
P.O. Box 870
Burnet, Texas 78611
Telephone: 512-756-4900
Email: sodek@centraltexasgcd.org
Doug Shaw, Vice Chair
General Manager
P.O. Box 1749
Springtown, Texas 76802
Telephone: 817-523-5200
Email: doug@uppertrinitygcd.org
Regional Water Planning Group Representatives:
Region B: Tracy Mesler, Alternate: Doug Shaw
Region G: Dirk Aaron, Alternate: Doug Shaw
Region K: Mitchell Sodek, Alternate: Paul Babb
2021 Joint Planning Desired future conditions and modeled available groundwater
Summary of Desired Future Conditions for GMA 8
Summary of Modeled Available Groundwater for GMA 8 by Groundwater Conservation District
Summary of Modeled Available Groundwater for GMA 8 by County
Groundwater Conservation Districts(11 either partially or completely included)
- Central Texas Groundwater Conservation District
- Clearwater Underground Water Conservation District
- Middle Trinity Groundwater Conservation District
- North Texas Groundwater Conservation District
- Northern Trinity Groundwater Conservation District
- Post Oak Savannah Groundwater Conservation District
- Prairielands Groundwater Conservation District
- Red River Groundwater Conservation District
- Saratoga Underground Water Conservation District
- Southern Trinity Groundwater Conservation District
- Upper Trinity Groundwater Conservation District
Additional Groundwater Conservation District Information
Exempt Groundwater Use Estimates
Aquifers(either partially or completely included)
Major Aquifers
Minor Aquifers
Component Counties
GMA 8 Reports
| ID | Date | Type | Description |
|---|---|---|---|
| GR17-029_MAG | 1/19/2018 | GAM run - MAG | Modeled available groundwater for the aquifers in Groundwater Management Area 8 |
| HA-04 | 1/1/1996 | Hydrologic atlas | Water Quality in the Woodbine Aquifer (in sections) |
| AA09-07 | 11/22/2010 | Aquifer assessment | Reevaluation of desired future conditions for the Trinity Aquifer in Comanche and Erath counties |
| GMA8_DFC_01 | 12/17/2007 | DFC submission | Desired future conditions for the Blossom, Brazos River Alluvium, Edwards (Balcones Fault Zone), Nacatoch, and Woodbine aquifers |
| GMA8_DFC_02 | 5/19/2008 | DFC submission | Desired future conditions for the Ellenburger-San Saba, Hickory, and Marble Falls aquifers |
| GMA8_DFC_03 | 9/17/2008 | DFC submission | Desired future conditions for the Trinity Aquifer |
| B-6310 | 12/1/1973 | Groundwater bulletin | Reconnaissance Investigation of the Ground-Water Resources of the Brazos River Basin, Texas |
| R-067 | 12/1/1967 | TWDB numbered report | Reconnaissance of the Chemical Quality of Surface Waters of the Trinity River Basin, Texas |
| R-115 | 4/1/1970 | TWDB numbered report | Time of Travel of Translatory Waves on the Brazos, Leon and Little Rivers, Texas |
| R-041 | 3/1/1967 | TWDB numbered report | Ground Water in the Flood-Plain Alluvium of the Brazos River, Whitney Dam to Vicinity of Richmond, Texas |
| R-350 | 11/1/1999 | TWDB numbered report | Changes in Groundwater Conditions in the Edwards and Trinity Aquifers, 1987-1997, for Portions of Bastrop, Bell, Burnet, Lee, Milam, Travis, and Williamson Counties, Texas |
| R-160 | 11/1/1972 | TWDB numbered report | Ground-Water Resources of Navarro County, Texas |
| B-6517 | 7/1/1965 | Groundwater bulletin | Ground-Water Resources of Camp, Franklin, Morris, and Titus Counties, Texas |
| R-046 | 5/1/1967 | TWDB numbered report | Occurrence and Quality of Ground Water in Brown County, Texas |
| R-058 | 8/1/1967 | TWDB numbered report | Occurrence and Quality of Ground Water in Montague County, Texas |
| R-325 | 4/1/1990 | TWDB numbered report | Test Well Drilling Investigation to Delineate the Downdip Limits of Usable-Quality Ground Water in the Edwards Aquifer in the Austin Region, Texas |
| R-276 | 6/1/1983 | TWDB numbered report | Occurrence, Availability, and Quality of Ground Water in Travis County, Texas |
| R-224 | 10/1/1978 | TWDB numbered report | Occurrence, Quantity, and Quality of Ground Water in Taylor County, Texas |
| R-169 | 4/1/1973 | TWDB numbered report | Ground-Water Resources of Rains and Van Zandt Counties, Texas |
| R-331 | 7/1/1991 | TWDB numbered report | Ground-Water Quality Monitoring of the Trinity Aquifer in the Vicinity of Erath County |
| R-014 | 1/1/1966 | TWDB numbered report | Hydrologic Studies of Small Watersheds, Little Elm Creek, Trinity River Basin, Texas, 1956-62 |
| R-035 | 11/1/1966 | TWDB numbered report | Quality of Water Big Mineral Arm and Tributaries, Lake Texoma, Texas: January 18-20 and February 10-11, 1966 |
| R-054 | 8/1/1967 | TWDB numbered report | Hydrologic Studies of Small Watersheds, Pin Oak Creek, Trinity River Basin, Texas 1956-62 |
| R-269 | 4/1/1982 | TWDB numbered report | Occurrence, Availability and Chemical Quality of Ground Water in the Cretaceous Aquifers of North-Central Texas, Volumes 1 & 2 |
| R-195 | 11/1/1975 | TWDB numbered report | Ground-Water Resources of Part of Central Texas with Emphasis on the Antlers and Travis Peak Formations, Volumes 1 & 2 |
| R-305 | 4/1/1988 | TWDB numbered report | Ground-Water Resources of the Nacatoch Aquifer |
| R-307 | 8/1/1988 | TWDB numbered report | Occurrence, Availability, and Chemical Quality of Ground Water in the Blossom Sand Aquifer |
| R-319 | 1/1/1990 | TWDB numbered report | Evaluation of Water Resources in Part of Central 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-358 | 12/1/2003 | TWDB numbered report | Groundwater Availability Modeling: Northern Segment of the Edwards Aquifer, Texas |
| R-346 | 3/1/1996 | TWDB numbered report | The Paleozoic and Related Aquifers of Central Texas |
| R-071 | 3/1/1968 | TWDB numbered report | Reconnaissance of the Chemical Quality of the Surface Waters of the Colorado River Basin, Texas |
| R-349 | 11/1/1999 | TWDB numbered report | Updated Evaluation of Water Resources in Part of North-Central Texas, 1990-1999 |
| R-318 | 1/1/1990 | TWDB numbered report | Evaluation of Water Resources in Part of North-Central Texas |
| R-099 | 10/1/1969 | TWDB numbered report | Hydrologic Studies of Small Watersheds, Cow Bayou, Brazos River Basin, Texas, 1955-64 |
| GR11-004_MP | 9/26/2011 | GAM run - Management Plan | Management plan information for Prairielands GCD |
| GR10-066_MP | 1/19/2011 | GAM run - Management Plan | Management plan information for Central Texas GCD |
| GR10-034_MP | 10/26/2010 | GAM run - Management Plan | Management plan information for North Texas GCD |
| GR10-032_MP | 9/29/2010 | GAM run - Management Plan | Management plan information for Red River GCD |
| GR10-029_MP | 1/4/2011 | GAM run - Management Plan | Management plan information for Post Oak Savannah GCD |
| GR16-015_MP | 8/31/2017 | GAM run - Management Plan | Management plan information for Post Oak Savannah GCD |
| AA07-03_MAG | 10/27/2008 | Aquifer assessment MAG | Managed available groundwater estimates for the Blossom Aquifer in Groundwater Management Area 8 |
| GR10-009_MP | 6/9/2010 | GAM run - Management Plan | Management plan information for Clearwater UWCD |
| GR10-004_MP | 4/15/2010 | GAM run - Management Plan | Management plan information for Middle Trinity GCD |
| GR09-022_MP | 11/20/2009 | GAM run - Management Plan | Management plan information for Upper Trinity GCD |
| GR08-083 | 5/17/2010 | GAM run | Additional results from the analysis completed in GAM Run 08-064 |
| GR08-072_MP | 10/3/2008 | GAM run - Management Plan | Management plan information for Middle Trinity GCD |
| GR08-069_MP | 9/10/2008 | GAM run - Management Plan | Management plan information for McLennan County GCD |
| GR08-066 | 5/17/2010 | GAM run | Predictive simulation for the Woodbine and Trinity aquifers in Groundwater Management Area 8 |
| GR08-065_MP | 8/22/2008 | GAM run - Management Plan | Management plan information for Northern Trinity GCD |
| GR08-064 | 5/17/2010 | GAM run | Predictive simulation for the Woodbine and Trinity aquifers in Groundwater Management Area 8 |
| GR08-060 | 7/11/2008 | GAM run | Simulation of discharge to springs and streams in the Edwards (Balcones Fault Zone) Aquifer in Groundwater Management Area 8 |
| GR08-059 | 7/11/2008 | GAM run | Simulation of discharge to springs and streams in the Edwards (Balcones Fault Zone) Aquifer in Groundwater Management Area 8 |
| GR08-053_MP | 8/1/2008 | GAM run - Management Plan | Management plan information for Fox Crossing Water District |
| GR08-040_MP | 5/30/2008 | GAM run - Management Plan | Management plan information for Saratoga UWCD |
| GR08-005 | 2/11/2008 | GAM run | Predictive simulations for the Trinity Aquifer in Groundwater Management Area 8 |
| GR08-006 | 2/11/2008 | GAM run | Predictive simulations for the Trinity Aquifer in Groundwater Management Area 8 |
| GMA8_DFC_05 | 4/27/2011 | DFC submission | Desired future conditions for the Blossom, Brazos River Alluvium, Edwards (Balcones Fault Zone), Ellenburger-San Saba, Hickory, Marble Falls, Nacatoch, Trinity, and Woodbine aquifers |
| GMA8_DFC_06 | 6/23/2011 | DFC submission | Desired future conditions for the Brazos River Alluvium, Nacatoch, and Woodbine aquifers |
| GR07-030 | 10/26/2007 | GAM run | Predictive simulations for the Trinity Aquifer in Groundwater Management Area 8 |
| GR07-021 | 10/30/2007 | GAM run | Simulation of discharge to springs and streams in the Edwards (Balcones Fault Zone) Aquifer in Groundwater Management Area 8 |
| GR07-015 | 10/30/2007 | GAM run | Simulation of discharge to springs and streams in the Edwards (Balcones Fault Zone) Aquifer in Groundwater Management Area 8 |
| GR07-009 | 6/29/2007 | GAM run | Predictive simulation for the Trinity Aquifer in Groundwater Management Area 8 |
| GR06-012 | 7/31/2006 | GAM run | Predictive simulation for the Trinity Aquifer in Lampasas County (Saratoga UWCD) |
| GR05-039 | 1/3/2006 | GAM run | Predictive simulation for the Trinity Aquifer in Mills County |
| GR05-005 | 3/31/2005 | GAM run | Post Oak Savannah GCD, water budget, water levels, drawdown through 2050, 2002 State Water Plan pumping summary, and interaction with the Brazos River Alluvium Aquifer |
| GR04-006 | 5/6/2004 | GAM run | Analytical groundwater modeling to estimate water level drawdown in Erath and Comanche counties |
| GR03-014 | 7/28/2003 | GAM run | Water availability for the Carrizo-Wilcox Aquifer in Henderson, Navarro, and Freestone counties |
| GR08-084_MAG | 3/5/2009 | GAM run - MAG | Managed available groundwater estimates for the Trinity Aquifer in Groundwater Management Area 8 |
| GR08-014_MAG | 5/6/2008 | GAM run - MAG | Managed available groundwater estimates for the Woodbine Aquifer in Groundwater Management Area 8 |
| GR08-010_MAG | 4/3/2008 | GAM run - MAG | Managed available groundwater estimates for the Edwards (Balcones Fault Zone) Aquifer in Groundwater Management Area 8 |
| AA07-05_MAG | 7/10/2008 | Aquifer assessment MAG | Managed available groundwater estimates for the Brazos River Alluvium Aquifer in Groundwater Management Area 8 |
| AA08-02_MAG | 5/1/2009 | Aquifer assessment MAG | Managed available groundwater estimates for the Marble Falls Aquifer in Groundwater Management Area 8 |
| AA08-03_MAG | 12/10/2009 | Aquifer assessment MAG | Managed available groundwater estimates for the Ellenburger-San Saba Aquifer in Groundwater Management Area 8 |
| AA08-04_MAG | 12/10/2009 | Aquifer assessment MAG | Managed available groundwater estimates for the Hickory Aquifer in Groundwater Management Area 8 |
| AA09-05_MAG | 12/10/2009 | Aquifer assessment MAG | Managed available groundwater estimates for the Blossom Aquifer in Groundwater Management Area 8 |
| GR11-008 | 1/27/2012 | GAM run | Trinity Aquifer model runs for Central Texas GCD |
| GR11-005 | 1/26/2012 | GAM run | Trinity Aquifer model runs for Central Texas GCD |
| GR11-011_MAG | 12/14/2011 | GAM run - MAG | Modeled available groundwater estimates for the Nacatoch Aquifer in Groundwater Management Area 8 |
| GR10-063_MAG | 12/14/2011 | GAM run - MAG | Modeled available groundwater estimates for the Trinity Aquifer in Groundwater Management Area 8 |
| GR10-065_MAG | 12/14/2011 | GAM run - MAG | Modeled available groundwater estimates for the Edwards (Balcones Fault Zone) Aquifer in Groundwater Management Area 8 |
| AA10-15_MAG | 12/30/2011 | Aquifer assessment MAG | Modeled available groundwater estimates for the Ellenburger-San Saba Aquifer in Groundwater Management Area 8 |
| AA10-16_MAG | 12/7/2011 | Aquifer assessment MAG | Modeled available groundwater estimates for the Hickory Aquifer in Groundwater Management Area 8 |
| AA10-17_MAG | 12/9/2011 | Aquifer assessment MAG | Modeled available groundwater estimates for the Marble Falls Aquifer in Groundwater Management Area 8 |
| AA10-18_MAG | 12/9/2011 | Aquifer assessment MAG | Modeled available groundwater estimates for the Brazos River Alluvium Aquifer in Groundwater Management Area 8 |
| AA10-19_MAG | 12/9/2011 | Aquifer assessment MAG | Modeled available groundwater estimates for the Blossom Aquifer in Groundwater Management Area 8 |
| GR10-064_MAG | 6/29/2012 | GAM run - MAG | Modeled available groundwater estimates for the Woodbine Aquifer in Groundwater Management Area 8 |
| GR11-006 | 2/2/2012 | GAM run | Predictive simulations for the Trinity Aquifer in Clearwater UWCD |
| GR10-006 | 7/30/2012 | GAM run | Predictive simulations for the Nacatoch Aquifer in Groundwater Management Area 8 |
| CR-1004831116 | 7/11/2012 | Contract report | Aquifer Test and Related Well Information from Public Water Supply Wells in Groundwater Management Area 8 |
| CR-1004831114 | 8/9/2012 | Contract report | Ground Water Recharge Model: Calibration and Validation for Remotely-Sensed Dual Coefficient (RDC) GMA8 ET Estimation |
| GMA8_DFC_04 | 3/16/2009 | DFC submission | Desired future conditions for the Blossom and Nacatoch aquifers |
| GR13-019_MP | 7/3/2013 | GAM run - Management Plan | Management Plan data for Saratoga UWCD |
| GR13-016_MP | 8/7/2013 | GAM run - Management Plan | Management plan data for Middle Trinity GCD |
| GT13-031_TERS | 1/15/2014 | GAM task - Total Estimated Recoverable Storage | Total Estimated Recoverable Storage for aquifers in Groundwater Management Area 8 |
| GR14-003_MP | 8/29/2014 | GAM run - Management Plan | Management plan data for Southern Trinity GCD |
| GR14-015_MP | 2/9/2015 | GAM run - Management Plan | Management Plan data for Southern Trinity GCD |
| GR14-008_MP | 3/3/2015 | GAM run - Management Plan | Management plan data for Upper Trinity GCD |
| GR14-001_MP | 3/31/2015 | GAM run - Management Plan | Management plan data for Northern Trinity GCD |
| GR15-003_MP | 11/24/2015 | GAM run - Management Plan | Management Plan data for Clearwater UWCD |
| GR16-002_MP | 4/25/2016 | GAM run - Management Plan | Management plan information for Middle Trinity GCD |
| GR16-004_MP | 5/16/2016 | GAM run - Management Plan | Management plan information for North Texas GCD |
| GR16-005_MP | 5/16/2016 | GAM run - Management Plan | Management plan information for Red River GCD |
| GR16-006_MP | 6/21/2016 | GAM run - Management Plan | Management plan information for Central Texas GCD |
| GR16-007_MP | 8/17/2016 | GAM run - Management Plan | Management plan information for Prairielands GCD |
| GR17-026_MP | 3/17/2017 | GAM run - Management Plan | Management plan information for Middle Trinity GCD |
| GR19-005_MP | 3/15/2019 | GAM run - Management Plan | Management plan information for Saratoga UWCD |
| GR19-016_MP | 10/24/2019 | GAM run - Management Plan | Management plan information for Southern Trinity GCD |
| GR19-018_MP | 11/7/2019 | GAM run - Management Plan | Management plan information for Upper Trinity GCD |
| GR21-005_MP | 10/11/2021 | GAM run - Management Plan | Management plan information for Central Texas GCD |
| GR21-006_MP | 10/21/2021 | GAM run - Management Plan | Management plan information for Middle Trinity GCD |
| GR21-001_MP | 1/14/2022 | GAM run - Management Plan | Management plan information for North Texas GCD |
| GR21-002_MP | 1/24/2022 | GAM run - Management Plan | Management plan information for Red River GCD |
| GR22-007_MP | 6/28/2022 | GAM run - Management Plan | Management plan information for Post Oak Savannah GCD |
| GR21-013_MAG | 11/1/2022 | GAM run - MAG | Modeled available groundwater estimates for the aquifers in Groundwater Management Area 8 |
| GR23-025_MP | 12/21/2023 | GAM run - Management Plan | Management plan information for Prairielands GCD |