A list of available statewide polygon coverages including a description of each coverage, and link to download the data. A list of available data coverages for point, line or specialized information. Point data are used to store specific informaton about sites and are often tied to a permit or sample point used by EPA staff. Line coverages can be attributed to a stream, road or a route. The internet hosts vast resources of digital data for GIS, and much of it is available free.
Data comes online quickly, but it can also change very rapidly.
The following list of sites are for informational purposes and do not have the endorsement of the OHIO EPA and Division of Surface Water. National and Regional Data USGS Online Data. US EPA Envirofacts Warehouse . Access to U.S. EPA's environmental data. Includes Federal and State level data.