Midwest Aquifer Map. Mission 2012 Clean Water Map, Historical geography, History geography 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) 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 wells and springs.The areal and vertical location of major aquifers is fundamental to the determination of groundwater availability for the Nation
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Information on sole source aquifers (SSAs) is widely used in assessments under the National Environmental Policy Act and at the state and local level Digital Map of Aquifer Boundary for the High Plains Aquifer in Parts of Colorado, Kansas, Nebraska, New Mexico, Oklahoma
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Access the Interactive Map of Sole Source Aquifers Minnesota map summarizing the regional differences in aquifers and groundwater resources 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.
Water Aquifer Maps. National Geographic Information Systems (GIS) layer of SSAs This is a list of some aquifers in the United States.
What is the difference between a confined and an unconfined (watertable) aquifer? — USGS. Access the Interactive Map of Sole Source Aquifers 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