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Aquifer Extent Maps


Map of the US outlining the extent of the High Plains Aquifer.
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Map of the US outlining the extent of the High Plains Aquifer.

The High Plains aquifer lies beneath eight states (Colorado, Kansas, Nebraska, New Mexico, Oklahoma, South Dakota, Texas, and Wyoming) and covers approximately 174,000 square miles.

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Map of Kansas showing the extent of the High Plains Aquifer.
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Map of Kansas showing the extent of the High Plains Aquifer.

The High Plains aquifer in Kansas covers approximately 30,500 square miles. The HPA is the primary water source for drinking, agricultural and industrial needs in western Kansas. For further information, click here.

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Map showing the three regions of the High Plains Aquifer in Kansas: Ogallala, Great bend Prairie, and Equus Beds.
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Map showing the three regions of the High Plains Aquifer in Kansas: Ogallala, Great bend Prairie, and Equus Beds.

The High Plains aquifer in Kansas can be approximately subdivided into the Ogallala aquifer in the western third of the state, the Great Bend Prairie aquifer in south central Kansas, and the Equus Beds aquifer near Wichita.

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Map of Kansas showing the five Groundwater Management Districts: Western Kansas GMD #1, Equus Beds GMD #2, Southwest Kansas GMD #3, Northwest Kansas GMD #4, and the Big Bend GMD #5.
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Map of Kansas showing the five Groundwater Management Districts: Western Kansas GMD #1, Equus Beds GMD #2, Southwest Kansas GMD #3, Northwest Kansas GMD #4, and the Big Bend GMD #5.

The five Groundwater Management Districts (GMDs), each governed by a local board of elected water-right holders and land owners, are responsible for managing the ground water within their boundaries. Visit the webpages of GMD 1, GMD 2, GMD 3, GMD 4, and G

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