Both major water-provider settlements have closed to new claims: the DuPont/Chemours/Corteva fund ($1.185B) on June 30, 2026, and the $10.5–12.5 billion 3M Phase 2 Action Fund — the largest PFAS settlement in U.S. history — on July 31, with the Special Needs Fund following on August 1. For systems that filed, first Phase 2 distributions are expected mid-to-late 2026, staggered through the 2030s, and the Supplemental Fund reimburses eligible treatment costs through 2030. For every system over the limit, the EPA compliance deadline of April 2029 remains.
Rule watch: the 4 ppt PFOA/PFOS limits are final and unchanged — EPA reaffirmed them in May 2026. Two proposals finished public comment in July and await final rules: a rescission of the PFHxS, PFNA, and GenX MCLs plus the hazard index (docket EPA-HQ-OW-2025-0654), and a two-year compliance extension to 2031 for eligible systems (docket EPA-HQ-OW-2025-1742). Both are proposed, not final — we track them in the weekly digest.
DOD AFFF phase-out — Military transition off fluorinated foam completes. Due Thursday, October 1, 2026.
Read the DOD PFAS guidance →The official portal remains at pfaswatersettlement.com. PFAS Comply is not the settlement administrator and does not take a contingency on filings.
Already filed — directly or through counsel? You're set; do not file again. Duplicate submissions can delay processing. If you're unsure which form is on file, confirm with the settlement administrator. And a detection above the MCL is not a current violation — the federal compliance deadline is April 2029. Eligibility is about settlement funds, not a compliance problem.
Military transition off fluorinated foam completes
Due October 1, 2026
The congressionally mandated deadline for the Defense Department to stop using fluorinated AFFF, after final waiver extensions, is October 1, 2026. Disposal, replacement-foam, and site-investigation activity around installations accelerates into this date.
Why it matters: Systems near military installations see the fastest-moving PFAS investigation and remediation activity around this transition.
Read the DOD PFAS guidance →4 ppt compliance date for public water systems
Due April 26, 2029
EPA reaffirmed the 4 ppt MCLs for PFOA and PFOS in May 2026 — those limits are final and unchanged. Compliance is due April 2029. A proposed rule (docket EPA-HQ-OW-2025-1742, comments closed July 20, 2026) would let eligible systems request a two-year extension to 2031 — proposed, not final.
Why it matters: Systems above 4 ppt without treatment in place face SDWA violations from April 2029.
Read EPA's extension proposal →Ongoing treatment-cost reimbursement window
Due December 31, 2030 · Fund: Per settlement terms
Systems that completed baseline testing under the 3M and DuPont settlements can seek reimbursement for eligible future treatment and compliance costs through December 31, 2030. Reimbursement runs on documentation — keep treatment invoices, O&M records, and media-changeout logs current. Confirm your system's specific terms with the settlement administrator.
If you miss it: Eligible treatment costs go unreimbursed.
Open the claims portal →Treatment & remediation cost claims — closed
Closed July 31, 2026 · Fund: $10.5–12.5B
Public water systems with confirmed PFAS detections had until July 31, 2026 to file via the official PFAS Water Settlement portal. The fund — the largest PFAS settlement pool in U.S. history — has moved to allocation: first Phase 2 distributions are expected mid-to-late 2026, staggered through the 2030s.
If you didn't file: Systems that did not file forfeited their share of the 3M fund and waived future direct-action rights against 3M for PFAS.
Check claim status with the administrator →Action Fund claims — closed
Closed June 30, 2026 · Fund: $1.185B
Phase 2 water systems (those serving >3,300 people, or those that detected PFAS more recently) had until June 30, 2026 to submit Action Fund claim forms covering remediation and treatment costs. The window is closed; distributions follow the same mid-2026-onward schedule as the 3M fund.
If you didn't file: Systems that did not file forfeited their share of the DuPont/Chemours/Corteva treatment fund.
Check claim status with the administrator →Disadvantaged-system applications — closed
Closed August 1, 2026 · Fund: Discretionary
The supplemental fund for systems facing capacity, affordability, or technical barriers closed to applications August 1, 2026. Awards are discretionary and determinations come from the settlement administrator.
If you didn't file: Systems that did not apply forfeited the supplemental allocation reserved for disadvantaged communities.
Check claim status with the administrator →Look up your PWSID to see PFAS detections we've recorded for your system, plus a per-system claim view tailored to your detection profile.
Weekly email covering settlement distributions, the Supplemental Fund reimbursement window, EPA's pending rescission and extension rules, and grant rounds for treatment funding. The 5-section documentation checklist below is the same one SRF and EC-SDC applications draw on.
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Kept for reference. The 3M and DuPont filing windows have closed, but the same records — detection evidence, treatment costs, source attribution — are what state revolving fund and EC-SDC grant applications ask for, and section 3 (treatment costs) is still the one that takes longest to pull together.
PFAS Comply is an information platform — we don't file settlement claims and we don't take a contingency. The settlement administrator at pfaswatersettlement.com is the only official filing route. Talk to your utility's counsel before filing.