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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]
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 water — which spans from South Dakota to Texas and was once the size of Lake Huron — at one point accounted for 30% of the crop and ... The Ogallala Aquifer was formed more than 25,000 ...
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] .
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.
Some aquifers, like the Edwards Aquifer In Central Texas, respond really quickly to precipitation. For other aquifers, like the sand-based Upper Trinity Aquifer, it takes time for the rainfall to ...
Springs that once flowed into the White River issued from the Ogallala Aquifer, which has been heavily tapped by the numerous farming operations on the Llano Estacado. [7] According to annual depth to water level measurements obtained by the High Plains Underground Water District, the water table beneath the Llano Estacado has declined at a ...