PFAS Comply

ST CHARLES COUNTY PWSD 2

PWSID: MO6024530 · O FALLON, MO · Serving 100,587 people

Type: CWSOwner: LSource: SW
Settlement eligible
May qualify for 3M/DuPont settlement funds
Check claims portal →
Compliant

All PFAS compounds below EPA Maximum Contaminant Levels.

Key contaminants vs MCL

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

Detection summary

2
PFAS compounds detected
47500 ppt
Highest single detection
2024-07-16
Latest sample date
partial
Data completeness

All PFAS detection results

Source: EPA UCMR5 (UCMR5)

ContaminantResult (ppt)MCL (ppt)StatusSample date
NEtFOSAAND—Below MRL2024-10-10
HFPO-DAND10Below MRL2024-04-09
ADONAND—Below MRL2024-04-09
9Cl-PF3ONSND—Below MRL2024-04-09
PFHxAND—Below MRL2024-04-09
PFUnAND—Below MRL2024-04-09
PFOSND4Below MRL2024-04-09
PFDoAND—Below MRL2024-04-09
PFOAND4Below MRL2024-04-09
PFHpAND—Below MRL2024-10-10
PFHxSND10Below MRL2024-10-10
PFNAND10Below MRL2024-10-10
PFOAND4Below MRL2024-10-10
PFDAND—Below MRL2024-10-10
PFDoAND—Below MRL2024-10-10
PFHxAND—Below MRL2024-10-10
PFUnAND—Below MRL2024-10-10
11Cl-PF3OUdSND—Below MRL2024-10-10
PFOSND4Below MRL2024-10-10
PFDAND—Below MRL2024-04-09
NFDHAND—Below MRL2024-04-09
PFNAND10Below MRL2024-04-09
NEtFOSAAND—Below MRL2024-04-09
6:2 FTSND—Below MRL2024-04-09
4:2 FTSND—Below MRL2024-04-09
8:2 FTSND—Below MRL2024-04-09
PFMPAND—Below MRL2024-04-09
PFPeAND—Below MRL2024-04-09
PFEESAND—Below MRL2024-04-09
PFPeSND—Below MRL2024-04-09
PFHpSND—Below MRL2024-04-09
PFTrDAND—Below MRL2024-04-09
PFTAND—Below MRL2024-04-09
PFHxSND10Below MRL2024-04-09
NMeFOSAAND—Below MRL2024-04-09
PFMBAND—Below MRL2024-04-09
PFBSND—Below MRL2024-04-09
PFHpAND—Below MRL2024-04-09
11Cl-PF3OUdSND—Below MRL2024-04-09
PFHpAND—Below MRL2024-06-25
PFUnAND—Below MRL2024-06-25
PFHxAND—Below MRL2024-06-25
PFDoAND—Below MRL2024-06-25
PFDAND—Below MRL2024-06-25
PFOAND4Below MRL2024-06-25
PFOSND4Below MRL2024-06-25
11Cl-PF3OUdSND—Below MRL2024-06-25
PFHxSND10Below MRL2024-06-25
PFBAND—Below MRL2024-06-25
PFBSND—Below MRL2024-06-25
NMeFOSAAND—Below MRL2024-06-25
NEtFOSAAND—Below MRL2024-06-25
PFNAND10Below MRL2024-06-25
9Cl-PF3ONSND—Below MRL2024-06-25
PFTrDAND—Below MRL2024-06-25
HFPO-DAND10Below MRL2024-06-25
PFTAND—Below MRL2024-06-25
6:2 FTSND—Below MRL2024-06-25
4:2 FTSND—Below MRL2024-06-25
8:2 FTSND—Below MRL2024-06-25
PFMPAND—Below MRL2024-06-25
PFPeAND—Below MRL2024-06-25
PFMBAND—Below MRL2024-06-25
PFEESAND—Below MRL2024-06-25
NFDHAND—Below MRL2024-06-25
PFPeSND—Below MRL2024-06-25
PFHpSND—Below MRL2024-06-25
ADONAND—Below MRL2024-06-25
PFMPAND—Below MRL2024-10-10
PFNAND10Below MRL2024-10-10
PFOSND4Below MRL2024-10-10
PFOAND4Below MRL2024-10-10
PFDAND—Below MRL2024-10-10
PFDoAND—Below MRL2024-10-10
PFHxAND—Below MRL2024-10-10
PFUnAND—Below MRL2024-10-10
11Cl-PF3OUdSND—Below MRL2024-10-10
ADONAND—Below MRL2024-10-10
PFBAND—Below MRL2024-10-10
6:2 FTSND—Below MRL2024-10-10
PFHxSND10Below MRL2024-10-10
8:2 FTSND—Below MRL2024-10-10
9Cl-PF3ONSND—Below MRL2024-10-10
PFPeAND—Below MRL2024-10-10
PFMBAND—Below MRL2024-10-10
PFEESAND—Below MRL2024-10-10
NFDHAND—Below MRL2024-10-10
PFPeSND—Below MRL2024-10-10
PFHpSND—Below MRL2024-10-10
NMeFOSAAND—Below MRL2024-10-10
NEtFOSAAND—Below MRL2024-10-10
PFTrDAND—Below MRL2024-10-10
PFTAND—Below MRL2024-10-10
4:2 FTSND—Below MRL2024-10-10
PFBSND—Below MRL2024-10-10
PFHpAND—Below MRL2024-10-10
HFPO-DAND10Below MRL2024-10-10
8:2 FTSND—Below MRL2025-01-02
PFBAND—Below MRL2025-01-02
6:2 FTSND—Below MRL2025-01-02
4:2 FTSND—Below MRL2025-01-02
PFTrDAND—Below MRL2025-01-02
NMeFOSAAND—Below MRL2025-01-02
HFPO-DAND10Below MRL2025-01-02
PFBSND—Below MRL2025-01-02
PFTAND—Below MRL2025-01-02
PFMPAND—Below MRL2025-01-02
PFPeAND—Below MRL2025-01-02
PFMBAND—Below MRL2025-01-02
PFEESAND—Below MRL2025-01-02
PFHpAND—Below MRL2025-01-02
PFPeSND—Below MRL2025-01-02
NEtFOSAAND—Below MRL2025-01-02
PFHpSND—Below MRL2025-01-02
ADONAND—Below MRL2025-01-02
PFNAND10Below MRL2025-01-02
PFOSND4Below MRL2025-01-02
NFDHAND—Below MRL2025-01-02
PFOAND4Below MRL2025-01-02
PFDAND—Below MRL2025-01-02
PFDoAND—Below MRL2025-01-02
PFHxAND—Below MRL2025-01-02
PFUnAND—Below MRL2025-01-02
11Cl-PF3OUdSND—Below MRL2025-01-02
9Cl-PF3ONSND—Below MRL2025-01-02
PFHxSND10Below MRL2025-01-02
NEtFOSAAND—Below MRL2024-04-09
PFMPAND—Below MRL2024-07-16
PFPeAND—Below MRL2024-07-16
PFMBAND—Below MRL2024-07-16
PFEESAND—Below MRL2024-07-16
NFDHAND—Below MRL2024-07-16
PFPeSND—Below MRL2024-07-16
PFHpSND—Below MRL2024-07-16
8:2 FTSND—Below MRL2024-07-16
PFTrDAND—Below MRL2024-04-09
NMeFOSAAND—Below MRL2024-04-09
PFHxAND—Below MRL2024-07-16
PFTAND—Below MRL2024-04-09
PFOSND4Below MRL2024-07-16
PFHpAND—Below MRL2024-07-16
PFDoAND—Below MRL2024-07-16
PFOAND4Below MRL2024-07-16
PFHxSND10Below MRL2024-07-16
PFNAND10Below MRL2024-07-16
4:2 FTSND—Below MRL2024-07-16
11Cl-PF3OUdSND—Below MRL2024-07-16
PFBSND—Below MRL2024-07-16
9Cl-PF3ONSND—Below MRL2024-07-16
ADONAND—Below MRL2024-07-16
HFPO-DAND10Below MRL2024-07-16
PFBAND—Below MRL2024-07-16
PFUnAND—Below MRL2024-07-16
PFDAND—Below MRL2024-07-16
6:2 FTSND—Below MRL2024-07-16
NMeFOSAAND—Below MRL2024-10-08
PFPeAND—Below MRL2024-10-08
PFEESAND—Below MRL2024-10-08
PFPeSND—Below MRL2024-10-08
PFHpSND—Below MRL2024-10-08
PFTAND—Below MRL2024-10-08
NEtFOSAAND—Below MRL2024-10-08
PFMPAND—Below MRL2024-10-08
PFMBAND—Below MRL2024-10-08
PFTrDAND—Below MRL2024-10-08
PFNAND10Below MRL2024-10-08
PFBSND—Below MRL2024-10-08
NFDHAND—Below MRL2024-10-08
PFHxSND10Below MRL2024-10-08
8:2 FTSND—Below MRL2024-10-08
PFOSND4Below MRL2024-10-08
PFOAND4Below MRL2024-10-08
PFDAND—Below MRL2024-10-08
PFDoAND—Below MRL2024-10-08
PFHxAND—Below MRL2024-10-08
4:2 FTSND—Below MRL2024-10-08
11Cl-PF3OUdSND—Below MRL2024-10-08
9Cl-PF3ONSND—Below MRL2024-10-08
ADONAND—Below MRL2024-10-08
HFPO-DAND10Below MRL2024-10-08
PFBAND—Below MRL2024-10-08
6:2 FTSND—Below MRL2024-10-08
PFUnAND—Below MRL2024-10-08
PFHpAND—Below MRL2024-10-08
8:2 FTSND—Below MRL2024-10-08
PFMPAND—Below MRL2024-10-08
PFPeAND—Below MRL2024-10-08
PFMBAND—Below MRL2024-10-08
PFEESAND—Below MRL2024-10-08
NFDHAND—Below MRL2024-10-08
PFPeSND—Below MRL2024-10-08
PFHpSND—Below MRL2024-10-08
PFTAND—Below MRL2024-10-08
NEtFOSAAND—Below MRL2024-10-08
NMeFOSAAND—Below MRL2024-10-08
PFHpAND—Below MRL2024-10-08
4:2 FTSND—Below MRL2024-10-08
PFTrDAND—Below MRL2024-10-08
PFOSND4Below MRL2024-10-08
PFNAND10Below MRL2024-10-08
6:2 FTSND—Below MRL2024-10-08
PFHxSND10Below MRL2024-10-08
PFOAND4Below MRL2024-10-08
PFDAND—Below MRL2024-10-08
PFDoAND—Below MRL2024-10-08
HFPO-DAND10Below MRL2024-10-08
PFBSND—Below MRL2024-10-08
PFBAND—Below MRL2024-10-08
PFHxAND—Below MRL2024-10-08
ADONAND—Below MRL2024-10-08
9Cl-PF3ONSND—Below MRL2024-10-08
11Cl-PF3OUdSND—Below MRL2024-10-08
PFUnAND—Below MRL2024-10-08
PFTAND—Below MRL2024-04-09
PFDoAND—Below MRL2024-04-09
PFHxAND—Below MRL2024-04-09
9Cl-PF3ONSND—Below MRL2024-04-09
ADONAND—Below MRL2024-04-09
HFPO-DAND10Below MRL2024-04-09
PFDAND—Below MRL2024-04-09
PFPeAND—Below MRL2024-04-09
PFMBAND—Below MRL2024-04-09
PFEESAND—Below MRL2024-04-09
NFDHAND—Below MRL2024-04-09
PFPeSND—Below MRL2024-04-09
PFHpSND—Below MRL2024-04-09
PFOAND4Below MRL2024-04-09
PFOSND4Below MRL2024-04-09
NEtFOSAAND—Below MRL2024-04-09
NMeFOSAAND—Below MRL2024-04-09
PFUnAND—Below MRL2024-04-09
11Cl-PF3OUdSND—Below MRL2024-04-09
6:2 FTSND—Below MRL2024-04-09
4:2 FTSND—Below MRL2024-04-09
PFMPAND—Below MRL2024-04-09
PFBSND—Below MRL2024-04-09
PFHpAND—Below MRL2024-04-09
PFHxSND10Below MRL2024-04-09
PFNAND10Below MRL2024-04-09
8:2 FTSND—Below MRL2024-04-09
PFTrDAND—Below MRL2024-04-09
PFHpSND—Below MRL2024-10-10
PFBAND—Below MRL2024-10-10
4:2 FTSND—Below MRL2024-10-10
8:2 FTSND—Below MRL2024-10-10
PFMPAND—Below MRL2024-10-10
PFPeAND—Below MRL2024-10-10
PFMBAND—Below MRL2024-10-10
PFEESAND—Below MRL2024-10-10
PFPeSND—Below MRL2024-10-10
ADONAND—Below MRL2024-10-10
HFPO-DAND10Below MRL2024-10-10
NFDHAND—Below MRL2024-10-10
PFTAND—Below MRL2024-10-10
NMeFOSAAND—Below MRL2024-10-10
6:2 FTSND—Below MRL2024-10-10
PFTrDAND—Below MRL2024-10-10
9Cl-PF3ONSND—Below MRL2024-10-10
PFBSND—Below MRL2024-10-10
lithium47500—2024-10-10
lithium31200—2025-01-02
lithium29500—2024-10-08
lithium28700—2024-10-08
lithium28600—2024-04-09
lithium27500—2024-04-09
lithium25600—2024-10-10
lithium19100—2024-06-25
lithium17600—2024-04-09
PFBA6.5—2024-04-09
PFBA5.2—2024-04-09

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