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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]
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.
The Ogallala Aquifer was formed more than 25,000 years ago, but it recharges at a very low rate. For years, irrigators in Kansas have drained more from the aquifer than rainfall can replace.
Because of their very permeable geology, nearly 100 percent of the annual rainfall infiltrates to a very shallow aquifer, often less than 20 feet (6 m) below the surface. This aquifer is the well-known Ogallala Aquifer that is one of the most productive and important aquifers in the world." [225]
Dec. 12—The Ogallala Land & Water Trust's efforts to conserve water in the Ogallala Aquifer in an area near Cannon Air Force Base have been acknowledged by the U.S. Department of Defense in a ...
The Ogallala aquifer is the principal source of water for agriculture in western Kansas. It’s not an underground lake as some believe but saturated sediments that have been deposited over the ...
The USGS and KGS both use High Plains Aquifer in all of their publications. Non-technical common usage, though, seems to prefer Ogallala. I think that the article should mention that the entities monitoring this aquifer refer to it primarily as the High Plains Aquifer Lieutenant pepper 17:05, 24 November 2009 (UTC)
The water in the Ogallala Aquifer is worth billions to western Kansas, but it’s disappearing. It's been a challenge to find ways to slow depletion. Ogallala Aquifer dropped 12+ inches in 2021.