We've made some changes to EPA.gov. If the information you are looking for is not here, you may be able to find it on the EPA Web Archive or the January 19, 2017 Web Snapshot.

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 Adobe Reader to view files on this page. See EPA’s About PDF page to learn more.