An official website of the United States government.

This is not the current EPA website. To navigate to the current EPA website, please go to This website is historical material reflecting the EPA website as it existed on January 19, 2021. This website is no longer updated and links to external websites and some internal pages may not work. More information »

Impaired Waters and TMDLs

Implementing Total Maximum Daily Loads: Understanding and Fostering Successful Results

The study, completed by Kent State University, focuses on the states of Ohio and West Virginia. It addresses the extent to which TMDLs are being implemented, factors that facilitate implementation progress and steps that can be taken to facilitate further progress on TMDL implementation.

You may need a PDF reader to view some of the files on this page. See EPA’s About PDF page to learn more.