ODNR Groundwater Resources Maps

Groundwater resources maps, produced by the Ohio Department of Natural Resources (ODNR), show the types of aquifers present in the county, expected yields, and the typical depths of water wells. The maps use colors and patterns to show the amount of water expected from the most productive aquifer in an area. The maps are intended to aid in developing reliable groundwater supplies.

Butler County

Clark County


Greene County

Hamilton County


Miami County

Montgomery County


Preble County

Shelby County


Warren County