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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]
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.
English: Digital map of the saturated thickness of the High Plains aquifer in parts of Kansas, Nebraska, New Mexico, Oklahoma, South Dakota, Texas and Wyoming, 1996-97. Produced from GIS data produced by the USGS and published in Open File Report 00-300 (USGS OFR 00-300). Researchers: Fischer, Brian C.; Kollasch, Keith M.; McGuire, Virginia L.
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 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 ...
Water levels in the Ogallala Aquifer continue to plummet as farm irrigation swallows an average of more than 2 billion gallons of groundwater per day statewide.
English: Map of water-level changes in the High Plains/Ogallala Aquifer in parts of Colorado, Kansas, Nebraska, New Mexico, Oklahoma, South Dakota, Texas, and Wyoming, 1980 to 1995. Created from public domain data produced by the USGS and made available in Open-File Report 99-197 [1] [2] .
The High Plains aquifer, a massive network of water-bearing formations that underlies parts of eight states, includes the extensive Ogallala aquifer and is the primary source of municipal, industrial, and irrigation water for much of western and central Kansas. Declines in the High Plains aquifer of western Kansas continue to dominate much of ...