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 This website is no longer updated and links to external websites and some internal pages may not work.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

EPA Research to Support States

Nutrient Visioneering Webinar Archive

Infographic depicting the common sources of nutrient pollutionOn July 18, 2018, EPA Office of Research and Development’s Dr. Denice Shaw and EPA Office of Water's Owen McDonough presented about the issue of nutrient pollution, the outcomes of the Nutrient Visioneering meeting and the output from national experts. Nutrient pollution is one of America's most widespread, costly and challenging environmental problems. To help address this issue, the US EPA organized an innovative public-private coalition to address the issue of excess nitrogen and phosphorous levels in water, for which the impacts to the economy are estimated to be in the billions annually. 

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