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

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

• The Draft Loading Analysis Plan for the Lower Mahoning River watershed is now available for review and comment. The comment period ended on January 17th, 2023. 
  • Fact Sheet
• The Draft Loading Analysis Plan for the Northern Central Ohio River Tributaries (Cross, Short, and Wheeling Creek) is now available for review and comment. The comment period ends at 5:00 P.M. on February 2nd, 2023.
  • Fact Sheet

Preliminary Modeling Results

 No documents are available for comment at this time. 

TMDL

• The Maumee Watershed Nutrient Draft TMDL Report is now available for review and comment. The comment period ends at 5:00 P.M. on March 8th, 2023.
  • Fact Sheet
  • Public Notice
  • Appendix 1 - Dissolved Reactive Phosphorus
  • Appendix 2 - Soil and Water Assessment Tool Models and Publications
  • Appendix 3 - Methods for Manure, Fertilizer, and Crop Removal Calculations
  • Appendix 4 - Individual NPDES Wasteload Allocations
  • Appendix 5 - Near-Field TMDL Reports in the Maumee Watershed
  • Appendix 6 - Cost Evaluation for Phosphorus Removal at Wastewater Treatment Facilities
  • Appendix 7 - Additional Considerations
  • Appendix 8 - Works Cited