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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 ...
6 South America. 7 References. ... The following is a partial list of aquifers around the world. ... Aquifers of the United States.
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]
Pages in category "Aquifers in the United States" The following 25 pages are in this category, out of 25 total. This list may not reflect recent changes. *
Category: Aquifers by country. 2 languages. ... Aquifers in the United States (1 C, 25 P) This page was last edited on 3 January 2016, at 21:18 (UTC). ...
Irrigation schemes in the world use about 3 500 km 3 water per year, of which 74% is evaporated by the crops. [7] This is some 80% of all water used by mankind (4 400 km 3 per year). The water used for irrigation is roughly 25% of the annually available water resources (14 000 km 3 ) and 9% of all annual river discharges in the hydrological cycle .
This is short compared to other dams. However, when viewed against the 81,200 km2 area of the lake, even a small range in Lake Superior's water level means its active volume is greater than the largest nominal in the table below.
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.