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| Map Gallery Slide Show | Image 44 of 75 | Texas Aquifers |
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| Texas Aquifers | ||
This map shows the location of The State of Texas major aquifers. Texas has numerous aquifers capable of producing groundwater for households, municipalities, industry, farms, and ranches. The Texas Water Development Board (TWDB) recognizes 9 major aquifers − aquifers that produce large amounts of water over large areas (see major aquifers map) − and 21 minor aquifers − aquifers that produce minor amounts of water over large areas or large amounts of water over small areas (see minor aquifers map). These aquifers are a critical source of water for Texas, supplying 59 percent of the 15.6 million acre-feet of water used in the state in 2003. About 79 percent of this water is used for irrigation, with irrigators withdrawing most of this water from the Ogallala Aquifer alone (82 percent of all groundwater used for irrigation, or 6.0 million acre-feet per year). About 36 percent of water used to meet municipal demands is from groundwater. |
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