Geographic Information Systems

A Geographic Information System (GIS) is a computer-based tool for mapping and analyzing features in the environment. GIS staff in the Division of Surface Water (DSW) provide geo-referenced data, geographical analysis, and map products to the Division. GIS staff support a wide range of activities including water quality modeling, watershed planning, and wetlands permitting and mitigation. GIS staff continually seek to improve the effectiveness of the Division through the use of geographic information resources.

Interactive Maps

The following interactive maps are available to view: 

• Water Chemistry & Stream Sediment Data
• Biological Monitoring & Assessment Data
• Combined Sewer Overflow Outfalls
• Individual NPDES Permits
• Fields Approved for Biosolids Application

Data for Download

The following data are available for download:

Other GIS Data

DSW distributes GIS data it develops and maintains. DSW does not distribute GIS data published by other organizations. The following is a list of GIS data frequently requested of, but not distributed by, the Ohio EPA. The list includes links to sites where the data can be obtained, or where more information is available.

• Watershed Boundaries
• Streams & Rivers
• Land Use

Additional GIS data is available from various local, state, and federal entities. A good starting place to find data is the Ohio Metadata Explorer. The Ohio Metadata Explorer is a state-wide index of GIS data, providing product details, contact information, and in some cases download instructions.

A wealth of GIS data is available from the Ohio Department of Natural Resources Geographic Information Management System (GIMS) Program. The GIMS Website is a portal for the download of administrative, geologic, soil, topographic, and many other types of data.

Contact Information

For additional information regarding the GIS program at the Division of Surface Water, contact:

Matt Fancher
GIMS Specialist
Ohio EPA, Division of Surface Water
P.O. Box 1049
Columbus, Ohio 43216-1049
(614) 644-2151 [voice]
(614) 644-2745 [fax]
e-mail: matt.fancher@epa.state.oh.us

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