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Listing Impaired Waters and Developing TMDLs

What is the 303(d) list? What is a total maximum daily load (TMDL)? How is a TMDL developed? Find answers to these and many other related questions on supplemental slides (pdf) from the Virtual Water Quality Standards Academy, May 2023 session.

These slides are a supplement for those unfamiliar with the subject and a refresher for those with more experience. Session slides are intended to be an interim resource and do not provide the same level of training as the live WQS Academy. Visit the Water Quality Standards Academy page for more information and to view other presentations.

Find additional information about impaired waters on the EPA's website on Impaired Waters and TMDLs or your state water quality agency's website.

Listing Impaired Waters and Developing TMDLs

Watershed Academy