PFAS Comply

RALLS COUNTY PWSD 1

PWSID: MO2024499 · HANNIBAL, MO · Serving 7,662 people

Type: CWSOwner: LSource: GW
Settlement eligible
May qualify for 3M/DuPont settlement funds
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Exceeds MCL

One or more PFAS compounds exceed EPA Maximum Contaminant Levels. Corrective action required by 2031.

Key contaminants vs MCL

PFOA4.3 ppt(MCL: 4 ppt)

EPA MCL: 4 ppt (parts per trillion) for PFOA and PFOS individually. Compliance deadline: 2031-12-31

Detection summary

4
PFAS compounds detected
14200 ppt
Highest single detection
2025-08-12
Latest sample date
partial
Data completeness

All PFAS detection results

Source: EPA UCMR5 (UCMR5)

ContaminantResult (ppt)MCL (ppt)StatusSample date
PFTrDAND—Below MRL2025-08-12
11Cl-PF3OUdSND—Below MRL2025-08-12
4:2 FTSND—Below MRL2025-08-12
8:2 FTSND—Below MRL2025-08-12
PFMPAND—Below MRL2025-08-12
PFPeAND—Below MRL2025-08-12
PFMBAND—Below MRL2025-08-12
PFEESAND—Below MRL2025-08-12
PFUnAND—Below MRL2025-08-12
PFPeSND—Below MRL2025-08-12
PFDoAND—Below MRL2025-08-12
PFHxAND—Below MRL2025-08-12
PFDAND—Below MRL2025-08-12
6:2 FTSND—Below MRL2025-08-12
NFDHAND—Below MRL2025-08-12
NMeFOSAAND—Below MRL2025-08-12
ADONAND—Below MRL2025-08-12
PFTAND—Below MRL2025-08-12
PFOSND4Below MRL2025-08-12
9Cl-PF3ONSND—Below MRL2025-08-12
HFPO-DAND10Below MRL2025-08-12
PFHpSND—Below MRL2025-08-12
NEtFOSAAND—Below MRL2025-08-12
PFHpAND—Below MRL2025-08-12
PFHxSND10Below MRL2025-08-12
PFNAND10Below MRL2025-08-12
lithium14200—2025-06-11
PFBA70.1—2025-08-12
PFBS11.4—2025-08-12
PFOA4.34Exceeds2025-08-12

Next steps