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  1. d Hydraulic Conductivity (Aller and others, 1987). Under the ODNR Division of Water Resources Ground Water Pollution Potential Mapping Program, the State of Ohio published its first PP map, Ground Water Pollution Potential of Madison C. unty, Ohio, in 1987 (Hallfrisch and Voytek, 1987). By 1995, ODNR had modified its DRASTIC methodology to ...

  2. A statewide digital coverage of this map is available for download and viewing via the Ohio Geology Interactive Map. County-based shapefiles are also available. Two 1:500,000-scale wall maps were created—one for Groundwater Vulnerability Index and another for Hydrogeologic Setting—and are available for download here or through the ...

  3. Groundwater Resources Maps. Created between 1978 and 1996, these maps are intended to aid in the development of reliable groundwater supplies throughout Ohio. Groundwater resources maps show the expected yield to a drilled well at any location in a county. All maps use a consistent color coding system to represent well yields.

  4. Apr 4, 2022 · The groundwater vulnerability maps, GIS data, shapefiles, and additional information are available here. High-resolution versions of the maps are available for purchase as print-on-demand products for $15 each (plus tax and shipping). Please contact the Geological Records Center at 614-265-6576 or geo.survey@dnr.ohio.gov to order.

  5. The Story of Drinking Water; Suggested Website; Groundwater (General) EPA Source Water Protection; Information at a Glance; Mini Water Tower; 5k Race for Global Water; Molson Coors Volunteer Well Painting; Alternate Water Supply (Planning) Where Does Our Water Come From? GMBVA Information Page; Ohio Groundwater Resources Map; Butler Groundwater ...

  6. Explore the NEW USGS National Water Dashboard; interactive map to access real-time water data from over 13,500 stations nationwide. Click to hide state-specific text ...

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  8. Explore the NEW USGS National Water Dashboard; interactive map to access real-time water data from over 13,500 ... Groundwater levels for Ohio. Click to hide state ...

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