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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.
The Ogallala aquifer is the principal source of water for agriculture in western Kansas. ... says that issues contributing to the depletion of the Ogallala Aquifer should have been dealt with a ...
“A sizable deficit (will) appear by the year 2030 based on the present knowledge of the region’s resources,” the 1975 report stated about Oklahoma’s access to the Ogallala Aquifer.
Overdrafting in coastal regions can lead to the reduction of water pressure in an aquifer, allowing saltwater intrusion. If saltwater contaminates a freshwater aquifer, that aquifer can no longer be used as a reliable source of freshwater for settlements and cities. Artificial recharge may return fresh water pressure to halt saltwater intrusion.
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 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.
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 ...