MAPPING PRODUCTS AVAILABLE FROM THE ODNR, DIVISION OF WATER
With the success of SAM and escalating printing costs, GIS technology was applied to other mapping projects at the DOW. Since the mid-1980's the DOW has produced county Ground Water Pollution Potential (GWPP) maps based upon DRASTIC. Applying GIS technology both expedited the mapping process and greatly decreased costs. Map layouts and reports were created in pdf format and are on the DOW website. Older printed GWPP maps were scanned for pdf format and digitized for GIS coverages.
A new series of GIS-based potentiometric surface (Psurf) maps were developed for both bedrock and unconsolidated aquifers. County Psurf maps are available for much of northern Ohio. GIS coverages are available via the ODNR ftp site or CD. An older series of maps, the Ground Water Resource (GWR) Maps are available on the web in a pdf format. GIS data is available as a coverage or shapefile from the ODNR website, ODNR ftp site, or by CD. The DOW website can be accessed at http://www.dnr.state.oh.us/water/ ODNR website is http://www.dnr.state.oh.us/gims/