Report 345 by John B. Ashworth and Janie Hopkins, Geologists | November 1995

Note: The boundaries of nine aquifers were changed in 2007. Information regarding aquifer boundary revisions is located in Appendix 7.1: Aquifer Boundary Changes of the 2007 State Water Plan, while complete aquifer discussions are located in Chapter 7: Groundwater Resources.

Major Aquifers

  • Carrizo (pdf - 0.16MB) - Carrizo-Wilcox Major Aquifer Map and Description
  • Cenozoic (pdf - 0.32MB) - Cenozoic Pecos Alluvium Major Aquifer Map and Description
  • Edwards (BFZ) (pdf - 0.25MB) - Edwards (Balcones Fault Zone) Major Aquifer Map and Description
  • Edwards-Trinity (pdf - 0.74MB) - Edwards-Trinity (Plateau) Major Aquifer Map and Description
  • Gulf (pdf - 0.25MB) - Gulf Coast Major Aquifer Map and Description
  • Hueco (pdf - 0.11MB) - Hueco-Mesilla Bolson Major Aquifers Map and Description
  • Ogallala (pdf - 0.64MB - Ogallala Major Aquifer Map and Description
  • Seymour (pdf - 0.47MB) - Seymour Major Aquifer Map and Description
  • Trinity (pdf - 0.41MB) - Trinity Major Aquifer Map and Description

Minor Aquifers

  • Blaine (pdf - 448KB) - Blaine Minor Aquifer Map and Description
  • Blossom (pdf - 124KB) - Blossom Minor Aquifer Map and Description
  • Bone (pdf - 110KB) - Bone Spring - Victorio Peak Minor Aquifer Map and Description
  • Brazos (pdf - 159KB) - Brazos River Alluvium Minor Aquifer Map and Description
  • Capitan (pdf - 114KB) - Capitan Reef Complex Minor Aquifer Map and Description
  • Dockum (pdf - 226KB) - Dockum Minor Aquifer Map and Description
  • Edwards-Trinity (pdf - 153KB) - Edwards-Trinity (High Plains) Minor Aquifer Map and Description
  • Ellenburger (pdf - 146KB) - Ellenburger-San Saba Minor Aquifer Map and Description
  • Hickory (pdf - 327KB) - Hickory Minor Aquifer Map and Description
  • Igneous (pdf - 110KB) - Igneous Minor Aquifer Map and Description
  • Lipan (pdf - 148KB) - Lipan Minor Aquifer Map and Description
  • Marathon (pdf - 112KB) - Marathon Minor Aquifer Map and Description
  • Marble (pdf - 170KB) - Marble Falls Minor Aquifer Map and Description
  • Nacatoch (pdf - 219KB) - Nacatoch Minor Aquifer Map and Description
  • Queen (pdf - 199KB) - Queen City Minor Aquifer Map and Description
  • Rita (pdf - 78KB) - Rita Blanca Minor Aquifer Map and Description
  • Rustler (pdf - 0.15MB) - Rustler Minor Aquifer Map and Description
  • Sparta (pdf - 0.18MB) - Sparta Minor Aquifer Map and Description
  • West Texas (pdf - 0.14MB) - West Texas Bolsons Minor Aquifer Map and Description
  • Woodbine (pdf - 0.36MB) - Woodbine Minor Aquifer Map and Description
  • Yegua-Jackson (pdf - 1.3 MB) - Yegua-Jackson Map & Description (Not part of original Report 345. Map and description from 2002 State Water Plan.)
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