Recommendations on PFOS consumption advisory levels from a collaboration of fish advisory program managers in eight states and Canada, based on the 2016 EPA Drinking Water Health Advisory.
Standards and Regulations
Designation of PFOA and PFOS as CERCLA Hazardous Substances
Provides links to the final rule, as well as additional resources about Superfund, enforcement, and the history of this designation.
EPA PFAS Enforcement Discretion and Settlement Policy Under CERCLA
Provides direction about how the agency will exercise enforcement discretion under CERCLA in matters involving PFAS.
Hawaii’s PFAS Environmental Hazard Evaluation and Environmental Action Levels Guidance
Provides regulatory and scientific information on the state’s PFAS hazard evaluation and environmental action levels, which are used in decision making through the hazard evluation process.
Final PFAS NPDWR & Supporting Fact Sheets
Provides links to the final PFAS National Primary Drinking Water Regulation (e.g., MCLs) and supporting materials, including fact sheets and technical information.
EPA Proposed PFAS National Primary Drinking Water Regulation
This webpage provides a link to the proposed regulation of six PFAS in drinking water, as well as fact sheets, FAQs, and other supporting documents.
ITRC PFAS Regulatory Programs Summary and Fact Sheets
This fact sheet and table describe examples of various federal and state regulatory programs and includes links to tables that provide established PFAS health-based criteria.
ECOS White Paper: Processes and Considerations for Setting State PFAS Standards, 2024 Update
ECOS developed and annually updates this paper on how states develop PFAS standards, advisories, and guidance values.
ECOS PFAS Monitoring Spreadsheet
Many states monitor for more PFAS than are actually regulated. This spreadsheet notates this data for participating states.
EPA Drinking Water Health Advisories for PFOA and PFOS
EPA issued interim updated drinking water health advisories for perfluorooctanoic acid (PFOA) and perfluorooctane sulfonic acid (PFOS) that replace those EPA issued in 2016. The updated advisory levels, which are based on new science and consider lifetime exposure, indicate that some negative health effects may occur with concentrations of PFOA or PFOS in water that are near zero. These interim health advisories will remain in place until EPA establishes a National Primary Drinking Water Regulation.