For MO AMERICAN ST LOUIS ST CHARLES COUNTIES (PWSID MO6010716) — CHESTERFIELD, MO · serving 1,111,000 people
MO AMERICAN ST LOUIS ST CHARLES COUNTIES appears to meet the threshold criteria for the AFFF MDL settlement funds. The PFAS Water Settlement administrator makes the final determination — file before the deadline regardless of uncertainty.
PFAS compounds detected: 2 · Max PFOA: — ppt · Max PFOS: — ppt
Settlement funds totaling more than $13.6B close to public water systems in sequence. Missing a deadline forfeits your system's share of that fund — permanently.
Action Fund Claims
Due June 30, 2026 · Fund: $1.185B
Phase 2 water systems (those serving >3,300 people, or those that detected PFAS more recently) must submit Action Fund claim forms covering remediation and treatment costs.
If you miss it: Forfeit your system's share of the DuPont/Chemours/Corteva treatment fund.
Open the claims portal →Treatment & remediation cost claims
Due July 31, 2026 · Fund: $10.5–12.5B
Public water systems with confirmed PFAS detections must file via the official PFAS Water Settlement portal. The fund is the largest PFAS settlement pool in U.S. history.
If you miss it: Forfeit your share of the 3M settlement and waive future direct-action rights against 3M for PFAS.
Open the claims portal →Applications for disadvantaged / under-resourced systems
Due August 1, 2026 · Fund: Discretionary
Supplemental fund for systems facing capacity, affordability, or technical barriers. Documentation burden is highest but eligibility is broader than the main funds.
We'll send a 5-section PDF checklist tailored to your system — system ID, detection evidence, treatment costs, source attribution, and filing logistics. Plus weekly PFAS deadline alerts for your state.
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Print this page (or save as PDF from your browser) and bring it to your next operations or engineering meeting.
If you miss it: Forfeit supplemental allocation reserved for disadvantaged communities.