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The Mahomet Aquifer is the most important aquifer in east-central Illinois.Composed of sand and gravel, it is part of the buried Mahomet Bedrock Valley.It underlies 15 counties and ranges from 50 to 200 feet (15 to 60 m) thick of It supplies over 100,000,000 US gallons (380,000 kL) per day of groundwater for public water use, industrial supply, and irrigation.
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 Sankoty aquifer is an aquifer in the U.S. state of Illinois that provides groundwater to a number of communities in northwestern and central Illinois. It is an unconsolidated deposit lying in a bedrock valley formerly occupied by the ancestral Mississippi River .
The Illinois side includes Henry County, Mercer County, and Rock Island County. [4] In extreme northwestern Illinois the Driftless Zone, a region of unglaciated and therefore higher and more rugged topography, occupies a small part of the state. Charles Mound, located in this region, is the state's highest elevation above sea level.
Figure 1. This BLM map depicts the principal meridians and baselines used for surveying states (colored) in the PLSS.. The following are the principal and guide meridians and base lines of the United States, with the year established and a brief summary of what areas' land surveys are based on each.
The Ogallala aquifer is the principal source of water for agriculture in western Kansas. ... The Ogallala Aquifer was formed more than 25,000 years ago, but it recharges at a very low rate. For ...
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]
The following is a partial list of aquifers around the world. A category-based list of aquifers is also available. Africa. Bas Saharan Basin;