This bill, titled the "Clean Water Standards for PFAS Act of 2025," aims to establish comprehensive regulations for perfluoroalkyl and polyfluoroalkyl substances (PFAS) under the Federal Water Pollution Control Act. It mandates the Environmental Protection Agency (EPA) Administrator to publish human health water quality criteria for measurable PFAS within three years of enactment. Additionally, the bill sets specific deadlines for the Administrator to finalize effluent limitations guidelines and standards for PFAS discharges from several priority industry categories, including organic chemicals, electroplating, metal finishing, textile mills, and landfills, between 2026 and 2028. Effective upon enactment, the bill requires immediate monitoring of PFAS discharges for these priority industries and additional categories like pulp, paper, airports, and electrical components. By December 31, 2026, the Administrator must determine whether to develop further effluent limitations for these additional categories, with any resulting rules to be published by December 31, 2028. Furthermore, the EPA Administrator is directed to promulgate Method 1633A for PFAS analysis by January 31, 2026. The bill also authorizes $200,000,000 annually for fiscal years 2026 through 2030 for grants to publicly owned treatment works to conduct pretreatment program activities, monitor, and assess local PFAS sources, alongside general appropriations for the bill's implementation.