From Inside PFAS Policy

EPA Finalizes PFAS Test Methods Expected To Boost CWA Mandates

February 2, 2024
EPA has finalized a pair of long-awaited test methods that are key to including PFAS limits in Clean Water Act (CWA) discharge permits as well as measuring the chemicals in soil, biosolids, sediment and fish tissue, putting the agency one step closer to mandating such limits in permits. The Office of Water published Method 1633 and Method 1621 on the agency’s website Jan. 31, although the methods will not be nationally required for CWA compliance monitoring until EPA has promulgated...


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