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Groundwater
The Kansas Geological Survey and the Kansas Department of Agriculture-Division of Water Resources cooperatively measure groundwater levels in the Upper Arkansas Subbasin. There are a total of 100 groundwater wells in the alluvial, the Ogallala-High Plains and Dakota aquifers used for this analysis. The Subbasin Water Resource Management Program measures wells in the winter, spring and fall. Only winter -- December, January and February -- measurements were used in the Water Level Charts since those groundwater levels are considered to be least affected by pumping for irrigation.

