2040-AG45 202504 Unified Agenda of Federal Regulatory and Deregulatory Actions 2040 Office of Water OW 2000 Environmental Protection Agency EPA Withdrawal of Federal Water Quality Criteria Applicable to Washington

EPA is proposing to withdraw the 146 Clean Water Act (CWA) section 303(c) human health criteria (HHC) that it previously promulgated at 40 CFR 131.45 for waters in Washington state. Since EPA’s promulgation, the state of Washington adopted and submitted for EPA’s review HHC identical to the Federal HHC, which EPA then approved. Therefore, these federal criteria are no longer applicable for CWA purposes and a withdrawal is appropriate.

]]> Substantive, Nonsignificant First Time Published in The Unified Agenda Proposed Rule Stage No Undetermined Deregulatory 40 CFR Part 131 33 U.S.C. 1251 et seq. No NPRM 08/00/2025 Final Action 03/00/2026 No No State No No No No Aralia Pawlick 2040 Office of Water OW 202 564-2194 pawlick.aralia@epa.gov 1200 Pennsylvania Ave NW, Washington DC 20004 Erica Fleisig 2040 Office of Water OW 202 566-1057 fleisig.erica@epa.gov 4305T, 1200 Pennsylvania Avenue NW, Washington DC 20460