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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 (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 are organized by national principal aquifer codes and names assigned by the National Water Information System (NWIS). Aquifers are identified by a geohydrologic unit code (a three-digit number related to the age of the formation) followed by a 4 or 5 character abbreviation for the geologic unit or aquifer name. [10]
This is a map of aquifers in St. Joseph County as of 1994. The Kankakee Aquifer is the yellowish patch to the west. The light blue area is the St. Joseph Aquifer System, which serves much of the ...
This is a map of 94 wells across New Mexico that the state can use to characterize brackish water aquifers, according to state researchers. Advocates, experts and even industry leaders interested ...
The following is a partial list of aquifers around the world. A category-based list of aquifers is also available. Africa ... United States Aquifers of the United ...
Groundwater pumping has been causing the land to sink at a record pace in California's San Joaquin Valley. New research suggests ways of addressing the problem.
Edwards and Trinity Aquifers map. The Edwards Aquifer is one of the most prolific artesian aquifers in the world. [2] Located on the eastern edge of the Edwards Plateau in the U.S. state of Texas, it is the source of drinking water for two million people, and is the primary water supply for agriculture and industry in the aquifer's region.