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 www.epa.gov. 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 This website is no longer updated and links to external websites and some internal pages may not work.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

Massachusetts' 2016 303(d) List Report and Related Documents

View supporting documents for Massachusetts' 2016 section 303(d) list of impaired waters.

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

Massachusetts 2016 303(d) List of Impaired Waters (PDF)(375 pp, 8 MB)
Responses to Comments for Massachusetts 2016 303(d) List of Impaired Waters (PDF)(143 pp, 12 MB)
EPA's Approval Document for Massachusetts 2016 303(d) List (PDF)(96 pp, 2 MB, January 2, 2020)