DRINKING WATER SOURCE ASSESSMENTS
Reports: Drinking Water Source Assessment Reports are available via a password-protected web site. This secure site contains lists of public water systems by county and their reports, if available. The reports address each of the more than 5,000 public water systems in Ohio by determining an area that contributes water to the well, wellfield or surface water intake; identifying the potential contaminant sources in that area; and determining the susceptibility of the source water to contamination.
Maps: Large scale county maps are also available for download for some of the counties. These maps are in PDF format and produced at a size of 24 inches wide by 36 inches high. The resolution is sufficient to zoom into the map to see the areal extents of Drinking Water Source Protection Areas and the locations of the Public Water System Wells and Surface Water Intakes. New maps will become available as time permits.
GIS: State-wide GIS data layers of the Public Water System wells and intakes, and Drinking Water Source Protection Areas for both ground water and surface water systems are now available to download.