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Water Quality Programs

The Division of Surface Water (DSW) includes several programs that support the Clean Water Acts 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

The Maumee Watershed Nutrient TMDL Project Draft Preliminary Modeling Results is now available for review and comment.  The comment period ends at 5:00 PM on August 17, 2022.

Study Plan

No documents are available for comment at this time. 

Biological and Water Quality Report

No documents are available for comment at this time. 

Loading Analysis Plan

Southeast Ohio River Tributaries (Little Scioto, Pine, & Ice Creek)

Lake Erie Central Basin Tributaries

Preliminary Modeling Results

Maumee Watershed Nutrient TMDL Draft Preliminary Modeling Results

Comment deadline is 5:00 PM on August 17, 2022. Additional information on this project is available on the TMDL project webpage.

TMDL

No documents are available for comment at this time.