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The Ogallala Aquifer (oh-gə-LAH-lə) is a shallow water table aquifer surrounded by sand, silt, clay, and gravel located beneath the Great Plains in the United States. As one of the world's largest aquifers, it underlies an area of approximately 174,000 sq mi (450,000 km 2) in portions of eight states (South Dakota, Nebraska, Wyoming, Colorado, Kansas, Oklahoma, New Mexico, and Texas). [1]
Located in South Central Texas, the Edwards Aquifer encompasses an area of approximately 4,350 square miles (11,300 km 2) that extends into parts of 11 counties. [3] The aquifer's boundaries begin at the groundwater divide in Kinney County, East of Brackettville, and extend Eastward through the San Antonio area and then Northeast where the aquifer boundary ends at the Leon River in Bell County ...
This is an accepted version of this page This is the latest accepted revision, reviewed on 11 February 2025. Water located beneath the ground surface An illustration showing groundwater in aquifers (in blue) (1, 5 and 6) below the water table (4), and three different wells (7, 8 and 9) dug to reach it. Groundwater is the water present beneath Earth's surface in rock and soil pore spaces and in ...
In Texas, there are 98 of these districts, covering nearly 70% of the state, according to the Texas Water Development Board. The Upper Trinity Groundwater Conservation District has the following ...
Aquifers of the United States Withdrawal rates from the Ogallala Aquifer.. This is a list of some aquifers in the United States.. Map of major US aquifers by rock type. An aquifer is a geologic formation, a group of formations, or a part of a formation that contains sufficient saturated permeable material to yield significant quantities of water to groundwater wells and springs.
Of the cities reviewed, San Antonio ranked last, or most vulnerable, and El Paso ranked as 10th-worst, though other Texas cities made the list. [ 5 ] San Antonio stores drinking water in its Carrizo ASR facility, which contains more than 91,000 acre-feet of water and has a maximum capacity of 120,000 acre-feet.
Sinkholes can range in diameter and depth. Some have vertical walls, others look like saucers or shallow basins, and some generate ponds by retaining water, according to the U.S. Geological Survey.
Texas has seen surging interest from companies hoping to bury carbon dioxide in its oilfields, putting the state at the vanguard of a government-subsidized program to fight climate change. But ...