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 This website is no longer updated and links to external websites and some internal pages may not work.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

Wastewater Treatment Facilities Feasibility (WWTF) Study for Lake Champlain

EPA contracted with Tetra Tech to assess what type of upgrades would be needed and what the main costs would be if WWTFs were to further reduce phosphorus inputs to Lake Champlain. Some information on the New York facilities is also included in this study for completeness purposes.

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