Additional Supporting Materials: Final PFAS NPDWR

Final PFAS National Primary Drinking Water Regulation Additional Supporting Materials

On April 10, 2024, EPA announced the final PFAS Primary Drinking Water Regulation (NPDWR) for six PFAS.  In addition to documents included on the final PFAS NPDWR website, provided below are supporting materials associated with this final regulation. These supporting rule documents, as well as all other supporting information for the Final PFAS NPDWR, are available at www.regulations.gov under Docket ID: EPA-HQ-OW-2022-0114 . 

Español

• Regulación Primaria Nacional de PFAS para el Agua Potable (pdf) (205.87 KB)
• FICHA TÉCNICA: Regulación Primaria Nacional de PFAS para el Agua Potable (pdf) (186.54 KB)
• Q&A: Preguntas y respuestas: Regulación Primaria Nacional de PFAS para el Agua Potable (pdf) (229.19 KB)
• 16 de Abril de 2024 Descripción General Presentación del Seminario Virtual: Reglamento Nacional Final de PFAS para la Calidad del Agua Potable Primaria   (pdf) (610.86 KB)

• 16 de Abril de 2024 Grabación del Seminario Web: Descripción General Reglamento Nacional Final de PFAS para la Calidad del Agua Potable Primaria (subtítulos en Español)

• 23 de Abril de 2024 Descripción Técnica Presentación del Seminario Virtual: Reglamento Nacional Final de PFAS para la Calidad del Agua Potable Primaria  (pdf) (716.47 KB)

• 23 de Abril de 2024 Grabación del Seminario Web: Descripción Técnica Reglamento Nacional Final de PFAS para la Calidad del Agua Potable Primaria

• 30 de Abril de 2024 Sistemas de Agua Potable Pequeños Presentación del Seminario Virtual: Reglamento Nacional Final de PFAS para la Calidad del Agua Potable Primaria (pdf) (631.57 KB)

EPA Technical Support Documents

• Economic Analysis for the Final PFAS NPDWR (pdf) (5.69 MB, EPA815R24001)
• Economic Analysis for the Final PFAS NPDWR Appendices (pdf) (7.99 MB, EPA815R24002)
• MCLGs for Three Individual PFAS and a Mixture of Four PFAS (pdf) (2.99 MB, EPA815R24004)
• Maximum Contaminant Levels Goals for PFOA and PFOS in Drinking Water (pdf) (651.16 KB, EPA815R24010)
• Framework for Estimating Noncancer Health Risks Associated with Mixtures of PFAS (pdf) (3.82 MB, EPA815R24003)
• Technologies and Costs for Removing PFAS from Drinking Water (pdf) (9.01 MB, EPA815R24012)
• PFAS Occurrence and Contaminant Background Support Document for Final PFAS NPDWR (pdf) (4 MB, EPA815R24013)
• Best Available Technologies and Small System Compliance Technologies for PFAS in Drinking Water (pdf) (976.95 KB, 815R24011)
• Human Health Toxicity Assessment and Appendix for PFOA and Related Salts
• Human Health Toxicity Assessment and Appendix for PFOS and Related Salts
• Work Breakdown Structure Documents
  • Cost Evaluation of Point-of-Use and Point-of-Entry Treatment Units for Small Systems: Cost Estimating Took and User Guide (pdf) (563.22 KB, 815B24010)
  • Work Breakdown Structure-Based Cost Model for Granular Activated Carbon Drinking Water Treatment (pdf) (3.89 MB, 815R24024)
  • Work Breakdown Structure-Based Cost Model for Ion Exchange Treatment of PFAS in Drinking Water (pdf) (3.74 MB, 815R24025)
  • Work Breakdown Structure-Based Cost Model for Reverse Osmosis/Nanofiltration Drinking Water Treatment (pdf) (4.03 MB, 815R21027)
  • Work Breakdown Structure-Based Cost Model for Nontreatment Options for Drinking Water Compliance (pdf) (2.41 MB, 815R24026)

• SafeWater Multi-Contaminant Benefit-Cost (MCBC) Model and Associated Files

• For 508-compliance assistance, please contact PFASNPDWR@epa.gov. 

EPA's Response to Public Comments 

• Responses to Public Comments on PFAS NPDWR Rulemaking (pdf) (22.3 MB, 815R24005)