Clean Water Act Analytical Methods

Approved CWA Test Methods: Organic Compounds

Methods approved under Clean Water Act section 304(h) and published at 40 CFR Part 136.
 
Note: The drinking water methods (525.1 and 525.2) are approved for Clean Water Act use, but are not approved for Safe Drinking Water Act compliance monitoring.
 

You will need Adobe Reader to view some of the files on this page. See EPA’s About PDF page to learn more.