PFAS TSCA

May 2026

Public Comment Proposed 2 months ago

EPA proposes rescinding NPDWR provisions for PFHxS, PFNA, HFPO‑DA (GenX), and Hazard Index mixtures (incl. PFBS)
EPA announced a proposed rule to rescind regulatory determinations and remove related NPDWR provisions (including MCLGs/MCLs and associated requirements) for PFHxS, PFNA, HFPO‑DA (GenX), and the Hazard Index mixture approach (PFHxS/PFNA/HFPO‑DA plus PFBS). The proposal is open for public comment (60-day period following Federal Register publication) and includes a virtual public hearing scheduled for July 7, 2026 (registration deadline July 1, 2026). Compliance teams at public water systems and supporting vendors should track whether drinking-water obligations for these PFAS components are removed or modified, and consider participating in the comment/hearing process.
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Public Comment Proposed 2 months ago

EPA proposes federal exemption framework extending PFOA/PFOS MCL compliance deadline to April 26, 2031; hearing scheduled
EPA issued a proposed rule that would retain the PFOA and PFOS drinking water maximum contaminant levels (MCLs) but create a federal exemption framework allowing eligible water systems to request two additional years to comply—extending the compliance date to April 26, 2031 (from April 26, 2029). The proposal provides for a written comment period (stated as 60 days after Federal Register publication) and schedules a virtual public hearing for July 7, 2026 (with pre-registration noted as July 1, 2026 on the EPA materials). Compliance teams at water utilities should evaluate eligibility/criteria implications and adjust PFAS NPDWR implementation schedules and capital planning assumptions pending finalization.
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Public Comment Proposed 2 months ago

EPA proposes federal exemption framework to extend PFOA/PFOS MCL compliance deadline from April 26, 2029 to April 26, 2031
EPA announced a proposed rule that would create a federal exemption framework allowing eligible public water systems to request an optional two-year extension to comply with the PFOA and PFOS Maximum Contaminant Levels (MCLs), shifting the compliance date from April 26, 2029 to April 26, 2031. EPA indicates the proposal would not change the numeric MCL values. The proposal includes a 60-day public comment period following Federal Register publication and a virtual public hearing on July 7, 2026. Water utilities and compliance teams should assess eligibility and potential planning impacts, and consider submitting comments.
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Public Comment Proposed 2 months ago

EPA proposes rescinding SDWA regulatory determinations and removing NPDWR provisions for PFHxS, PFNA, HFPO‑DA (GenX) and Hazard Index mixture (incl. PFBS)
EPA released a proposed rule to rescind the Safe Drinking Water Act regulatory determinations and remove associated National Primary Drinking Water Regulation (NPDWR) provisions for PFHxS, PFNA, HFPO‑DA (GenX), and the Hazard Index mixture (PFHxS + PFNA + HFPO‑DA + PFBS). If finalized, this would eliminate the monitoring/compliance obligations tied specifically to these contaminants under the 2024 PFAS drinking water rule, while (per EPA) not affecting PFOA/PFOS provisions. EPA indicates a 60‑day public comment period will run after Federal Register publication and the agency has scheduled a virtual public hearing for July 7, 2026 (registration details on EPA’s page).
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Public Comment Proposed 2 months ago

US EPA proposes rescinding parts of the 2024 PFAS NPDWR for PFHxS, PFNA, HFPO‑DA (GenX), and Hazard Index mixtures (incl. PFBS); hearing set for 7 July 2026
EPA announced a proposed Safe Drinking Water Act rulemaking to rescind regulatory determinations and associated regulatory provisions from the 2024 PFAS National Primary Drinking Water Regulation (NPDWR) as they apply to PFHxS, PFNA, HFPO‑DA (GenX), and Hazard Index mixtures involving these PFAS plus PFBS. EPA indicated a 60-day written comment period will open following Federal Register publication (via Regulations.gov; Docket ID EPA-HQ-OW-2025-0654) and scheduled a virtual public hearing for July 7, 2026 with pre-registration due July 1, 2026. Compliance teams for water systems and affected stakeholders should track potential scope changes to federal PFAS drinking water standards/requirements and participate in the comment process as appropriate.
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Public Comment Proposed 2 months ago

EPA proposes compliance extension mechanism allowing PFOA/PFOS MCL deadline to extend from April 26, 2029 to April 26, 2031
EPA issued a proposed rule to create a federal exemption framework under the PFAS NPDWR that would allow eligible public water systems (upon request/approval) to extend the compliance deadline for PFOA and PFOS maximum contaminant levels (MCLs) from April 26, 2029 to April 26, 2031. Drinking-water compliance planners should assess how a potential exemption/extension pathway could affect capital planning, treatment procurement timelines, and internal compliance schedules, and consider submitting comments during the rulemaking process.
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Public Comment Proposed 2 months ago

EPA proposes rescinding drinking-water regulatory determinations/related NPDWR provisions for PFHxS, PFNA, HFPO‑DA (GenX) and Hazard Index mixtures (incl. PFBS)
EPA issued a proposed rule to rescind the Safe Drinking Water Act (SDWA) regulatory determinations and remove related provisions in the 2024 PFAS NPDWR for PFHxS, PFNA, HFPO‑DA (GenX chemicals), and Hazard Index mixture-related provisions (mixtures including PFBS alongside PFHxS/PFNA/HFPO‑DA). Compliance teams for drinking-water utilities, primacy agencies, and downstream stakeholders should track the proposal, assess potential changes to monitoring/compliance programs for the affected PFAS/Hazard Index components, and consider submitting comments during the public comment period once published in the Federal Register.
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