Rescission of Regulatory Determinations and Removal of Related Provisions for Four PFAS Substances (PFHxS, PFNA, HFPO-DA (GenX), and the mixture of these three PFAS plus PFBS)

Activity

Association of California Water Agencies filed 1 comment on this docket between Jul 23, 2026 and Jul 23, 2026. 33 other organizations filed here. The comment window closed 8d ago.

What Association of California Water Agencies filed (1)

Abstract

The EPA is proposing to withdraw its regulatory determinations to regulate four per- and polyfluoroalkyl substances (PFAS)—perfluorohexane sulfonic acid (PFHxS), perfluorononanoic acid (PFNA), hexafluoropropylene oxide dimer acid and its ammonium salt (HFPO-DA, commonly known as GenX chemicals), and the mixture of these three PFAS plus perfluorobutane sulfonic acid (PFBS)—under the Safe Drinking Water Act. The EPA is also proposing to rescind all associated regulatory provisions currently codified in 40 CFR part 141 exclusive to these PFAS that were promulgated pursuant to these regulatory determinations. This action is being proposed solely on legal and procedural grounds. Related to Docket EPA-HQ-OW-2022-0114 and EPA-HQ-OW-2025-1742

• Association of California Water AgenciesTHIS ORG

  1 filing · confidence 85%
• Alliance of Nurses for Healthy Environmentstrade assoc.

  1 filing · confidence 85%
• American Academy of Pediatrics (AAP)

  1 filing · confidence 97%
• American Association for Justicetrade assoc.

  1 filing · confidence 85%
• American Chemistry Counciltrade assoc.

  1 filing · confidence 97%
• and South Carolina Water Quality Associationtrade assoc.

  1 filing · confidence 85%
• Association of Metropolitan Water Agencies (AMWA) and American Water Works Associationtrade assoc.

  1 filing · confidence 85%
• Association of State Drinking Water Administratorstrade assoc.

  1 filing · confidence 85%
• California Municipal Utilities Associationtrade assoc.

  1 filing · confidence 85%
• Environmental Protection Network (EPN)trade assoc.

  1 filing · confidence 97%
• Governors Public Health Alliancetrade assoc.

  1 filing · confidence 85%
• Healing Our Waters - Great Lakes Coalitiontrade assoc.

  1 filing · confidence 85%
• Illinois Environmental Counciltrade assoc.

  1 filing · confidence 85%
• Institute of Hazardous Materials Managementtrade assoc.

  1 filing · confidence 85%
• International Society for Environmental Epidemiology North America Chaptertrade assoc.

  1 filing · confidence 85%
• Iota Intel LLCunverified attribution

  1 filing · confidence 70%
• Maine Organic Farmers and Gardeners Associationtrade assoc.

  1 filing · confidence 85%
• Mass comment campaign sponsored by Organic Consumers Associationtrade assoc.

  1 filing · confidence 85%
• National Milk Producers Federationtrade assoc.

  1 filing · confidence 97%
• National Tribal Water Counciltrade assoc.

  1 filing · confidence 85%
• Natural Resources Defense Council (NRDC)trade assoc.

  1 filing · confidence 97%
• New England Water Works Associationtrade assoc.

  1 filing · confidence 85%
• PFAS Regulatory Coalitiontrade assoc.

  1 filing · confidence 85%
• Prairie Hills Audubon Societytrade assoc.

  1 filing · confidence 85%
• Rachel Carson Counciltrade assoc.

  1 filing · confidence 85%
• Rural Community Assistance Partnershiptrade assoc.

  1 filing · confidence 85%
• Silent Spring Institutetrade assoc.

  1 filing · confidence 85%
• Steel Manufacturers Associationtrade assoc.

  1 filing · confidence 85%
• The Water Quality Associationtrade assoc.

  1 filing · confidence 97%
• The World Water Alliancetrade assoc.

  1 filing · confidence 85%
• U.S. Chamber of Commerce

  1 filing · confidence 97%
• Water & Health Advisory Counciltrade assoc.

  1 filing · confidence 85%
• Waterkeeper Alliancetrade assoc.

  1 filing · confidence 85%
• West Virginia Rivers Coalitiontrade assoc.

  1 filing · confidence 85%