Water Quality Programs

The Division of Surface Water (DSW) includes several programs that support the Clean Water Act’s “fishable, swimmable” goals for all surface waters in Ohio. These programs assess the quality of the surface waters, set standards for protection of the waters and establish plans to bring impaired waters back into attainment with water quality goals. See the links to individual program pages on the right.

Documents Available for Comment

• Draft Big Walnut Creek Watershed TMDL Modification
• The Draft Quality Assurance Project Plan for the Maumee AOC Beneficial Use Impairment Partial Evaluation is now available for review and comment. The comment deadline is May 12, 2021.

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