Aquifer Basics

Basic information about the geology and hydrology of the High Plains aquifer.
  • High Plains Aquifer (HPA) Extent in the US
  • HPA Extent in Kansas
  • HPA Regions
  • Kansas GMDs
  • Depth to Base of HPA
  • Mean Hydraulic Conductivity
  • Mean Specific Yield
  • Water Quality - Total Dissolved Solids
  • Land Surface Elevation
  • Mean Annual Potential Recharge - Natural Conditions
  • Perennial Stream Changes 1961 to 2009
  • Mean Annual Runoff
  • Base Flow Index
  • Geology - Surficial Geology
  • Bedrock Geology
  • Soil - Composition of Surface Soils in Kansas
  • Soil - Mean Hydraulic Conductivity for 0 to 2.5 m
  • Soil - Available Water at Depth 0-150 cm