Ogallala-High Plains Aquifer

West Central Kansas (GMD1)

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Groundwater level change in the High Plains Aquifer in Western Kansas
 

 
 

 
High Plains saturated thickness in Western Kansas
 

 

Western Kansas GMD No. 1

  • Formed: 1973
  • Office location: Scott City
  • Counties/partial Counties: Wallace, Greeley, Wichita, Scott, Lane
  • Square miles: 1,828 (2017 GIS data)
  • Acres: 1,169,895 (2017 GIS data)
  • Irrigated acres: 196,267 authorized (WRIS 2011-2015 average)
  • Authorized acres: 465,567 (WRIS 2017)
  • Wells: 3,206 authorized groundwater points of diversion (WRIS 2017)
  • Average precipitation: 17 to 22 inches/year (1981-2012 normals)
  • Reported water use: 197,844 AFY total (189,048 AFY irrigation, 96% of total) (WRIS 2011-2015 average)

The High Plains aquifer components in Kansas are made up of the Ogallala, Great Bend Prairie, and Equus Beds regions as shown on the map below.


 
The High Plains aquifer underlies about 174,000 square miles of the central United States. It falls east of the Rocky Mountains in the southern part of the Great Plains. The aquifer underlies portions of eight states. They include South Dakota, Wyoming, Nebraska, Colorado, Kansas, Oklahoma, New Mexico and Texas. The High Plains aquifer is the shallowest and most abundant source of water in the region.

Extent of the High Plains Aquifer