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 This website is no longer updated and links to external websites and some internal pages may not work.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

Clean Water Act Analytical Methods

Approved CWA Test Methods for Pesticide Active Ingredients

The methods were promulgated under Clean Water Act Section 304(h) and incorporated by reference at 40 CFR 136.3, Table I-G—List of Approved Methods for Pesticide Pollutants. The methods are approved for use with the Pesticide Chemicals Effluent Guidelines, 40 CFR Part 455.

 

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