Blaine Aquifer | Texas Water Development Board

Blaine Aquiferinteractive map | cross-section

Aquifer Facts

  • Aquifer type: confined and unconfined
  • Area of outcrop: 3,443 square miles
  • Area of subsurface: 2,234 square miles
  • Proportion of aquifer with groundwater conservation districts: 88 percent
  • Number of counties containing the aquifer: 17

Summary

The Blaine Aquifer is a minor aquifer located at the east end of the High Plains in North Texas. The aquifer is part of the Permian Blaine Formation, which is composed of red silty shale, gypsum, anhydrite, salt, and dolomite. The formation consists of cycles of marine and nonmarine sediments deposited in a broad, shallow sea that once covered the southwestern United States. Saturated thickness reaches 300 feet in the aquifer, but freshwater saturated thickness averages 137 feet. Groundwater occurs primarily in solution channels and caverns within the beds of anhydrite and gypsum and dissolution of these minerals contributes to the overall poor quality of the water.

Groundwater in the Blaine Aquifer is typically brackish. Although some wells contain slightly saline water, with total dissolved solids between 1,000 and 3,000 milligrams per liter, most contain moderately saline water, with total dissolved solids between 3,000 and 10,000 milligrams per liter, exceeding secondary drinking water standards for Texas. Sulfate values are also well in excess of the secondary drinking water standard of 300 milligrams per liter.

No significant water level declines have occurred in wells measured by the TWDB. Groundwater for domestic and livestock purposes is available from shallow wells over most of the aquifer's extent. Water is also used for some municipal, industrial, and irrigation purposes.

Reports

ID Date Type Description
Texas Aquifers Study 12/31/2016 Legislative Report Texas Aquifers Study: Groundwater Quantity, Quality, Flow, and Contributions to Surface Water
B-6310 12/1/1973 Groundwater bulletin Reconnaissance Investigation of the Ground-Water Resources of the Brazos River Basin, 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-119 7/1/1970 TWDB numbered report Ground-Water Resources of Collingsworth County, Texas
R-161 11/1/1972 TWDB numbered report Ground-Water Resources of Hardeman County, Texas
R-167 4/1/1973 TWDB numbered report Ground-Water Resources of Hall and Eastern Briscoe Counties, Texas
R-215 4/1/1978 TWDB numbered report Occurrence, Quality, and Availability of Ground Water in Jones County, Texas
R-376 5/1/2011 TWDB numbered report Water Quality in the Blaine Aquifer
GT11-006 6/3/2011 GAM task Predictive simulations for the Seymour and Blaine aquifers in Groundwater Management Area 6
GR10-021_MP 7/22/2010 GAM run - Management Plan Management plan information for Rolling Plains GCD
GR10-007_MP 7/20/2010 GAM run - Management Plan Management plan information for Gateway GCD
GR08-057_MP 8/8/2008 GAM run - Management Plan Management plan information for Gateway GCD
GR08-054_MP 8/1/2008 GAM run - Management Plan Management plan information for Mesquite GCD
GR08-044 11/7/2008 GAM run Predictive simulation for the Seymour and Blaine aquifers in Groundwater Management Area 6
GR05-033 8/8/2005 GAM run Recharge information for the Seymour and Blaine aquifers in Knox, Baylor, and Haskell counties
GR05-017 5/16/2005 GAM run Saturated thickness maps for the Blaine and Seymour aquifers in Region A
GR04-022 3/4/2005 GAM run Volume in storage for Seymour and Blaine aquifers in Childress, Collingsworth, Hall, and Wheeler counties
GR11-021_MP 1/27/2012 GAM run - Management Plan Panhandle GCD Management Plan
GR10-020_MAG 6/22/2011 GAM run - MAG Managed available groundwater for the Blaine Aquifer in Groundwater Management Area 1
R-380 7/1/2011 TWDB numbered report Aquifers of Texas
GR13-017_MP 8/7/2013 GAM run - Management Plan Management plan data for Mesquite GCD
GT13-025_TERS 8/20/2013 GAM task - Total Estimated Recoverable Storage Total Estimated Recoverable Storage for aquifers in Groundwater Management Area 1
GT13-029_TERS 9/19/2013 GAM task - Total Estimated Recoverable Storage Total Estimated Recoverable Storage for aquifers in Groundwater Management Area 6
GT13-030_TERS 10/2/2013 GAM task - Total Estimated Recoverable Storage Total Estimated Recoverable Storage for aquifers in Groundwater Management Area 7
GR13-030_MP 2/18/2014 GAM run - Management Plan Management plan data for Wes-Tex GCD
GR14-013_MP 4/10/2015 GAM run - Management Plan Management plan data for Gateway GCD
GR14-009_MP 5/6/2015 GAM run - Management Plan Management plan data for Rolling Plains GCD
GR16-001_MP 4/28/2016 GAM run - Management Plan Management plan information for Panhandle GCD
GR18-010_MP 5/3/2018 GAM run - Management Plan Management plan information for Mesquite GCD
GR19-012_MP 6/13/2019 GAM run - Management Plan Management plan information for Wes-Tex GCD
GR19-020_MP 7/26/2019 GAM run - Management Plan Management plan information for Rolling Plains GCD
GR19-023_MP 10/1/2019 GAM run - Management Plan Management plan information for Gateway GCD
GR19-024_MP 10/1/2019 GAM run - Management Plan Management plan information for Clear Fork GCD
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