PFAS Comply

WEST BEND WATERWORKS

PWSID: WI2670120 · WEST BEND, WI · Serving 31,752 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

PFOA6.5 ppt(MCL: 4 ppt)

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

Detection summary

2
PFAS compounds detected
6.5 ppt
Highest single detection
2025-06-17
Latest sample date
partial
Data completeness

All PFAS detection results

Source: EPA UCMR5 (UCMR5)

ContaminantResult (ppt)MCL (ppt)StatusSample date
11Cl-PF3OUdSND—Below MRL2025-06-17
PFPeSND—Below MRL2025-06-17
NFDHAND—Below MRL2025-06-17
PFEESAND—Below MRL2025-06-17
PFMBAND—Below MRL2025-06-17
PFPeAND—Below MRL2025-06-17
PFMPAND—Below MRL2025-06-17
8:2 FTSND—Below MRL2025-06-17
4:2 FTSND—Below MRL2025-06-17
6:2 FTSND—Below MRL2025-06-17
PFBAND—Below MRL2025-06-17
HFPO-DAND10Below MRL2025-06-17
ADONAND—Below MRL2025-06-17
lithiumND—Below MRL2025-06-17
11Cl-PF3OUdSND—Below MRL2025-06-17
PFNAND10Below MRL2025-06-17
PFTAND—Below MRL2025-06-17
PFTrDAND—Below MRL2025-06-17
NEtFOSAAND—Below MRL2025-06-17
NMeFOSAAND—Below MRL2025-06-17
PFBSND—Below MRL2025-06-17
9Cl-PF3ONSND—Below MRL2025-06-17
PFHxSND10Below MRL2025-06-17
PFHpSND—Below MRL2025-06-17
PFOSND4Below MRL2025-06-17
PFOAND4Below MRL2025-06-17
PFDAND—Below MRL2025-06-17
PFDoAND—Below MRL2025-06-17
PFHxAND—Below MRL2025-06-17
PFHpAND—Below MRL2025-06-17
PFOAND4Below MRL2025-06-17
NEtFOSAAND—Below MRL2025-06-17
NMeFOSAAND—Below MRL2025-06-17
PFTrDAND—Below MRL2025-06-17
PFTAND—Below MRL2025-06-17
4:2 FTSND—Below MRL2025-06-17
6:2 FTSND—Below MRL2025-06-17
PFBAND—Below MRL2025-06-17
HFPO-DAND10Below MRL2025-06-17
ADONAND—Below MRL2025-06-17
9Cl-PF3ONSND—Below MRL2025-06-17
11Cl-PF3OUdSND—Below MRL2025-06-17
PFUnAND—Below MRL2025-06-17
PFHxAND—Below MRL2025-06-17
PFDoAND—Below MRL2025-06-17
PFDAND—Below MRL2025-06-17
PFPeAND—Below MRL2025-06-17
lithiumND—Below MRL2025-06-17
PFOSND4Below MRL2025-06-17
PFMPAND—Below MRL2025-06-17
PFNAND10Below MRL2025-06-17
PFMBAND—Below MRL2025-06-17
PFEESAND—Below MRL2025-06-17
NFDHAND—Below MRL2025-06-17
PFPeSND—Below MRL2025-06-17
PFHpSND—Below MRL2025-06-17
PFBSND—Below MRL2025-06-17
PFHpAND—Below MRL2025-06-17
PFHxSND10Below MRL2025-06-17
8:2 FTSND—Below MRL2025-06-17
HFPO-DAND10Below MRL2025-06-17
PFBAND—Below MRL2025-06-17
6:2 FTSND—Below MRL2025-06-17
4:2 FTSND—Below MRL2025-06-17
8:2 FTSND—Below MRL2025-06-17
PFMPAND—Below MRL2025-06-17
PFPeAND—Below MRL2025-06-17
PFMBAND—Below MRL2025-06-17
PFEESAND—Below MRL2025-06-17
NFDHAND—Below MRL2025-06-17
ADONAND—Below MRL2025-06-17
PFHpSND—Below MRL2025-06-17
PFNAND10Below MRL2025-06-17
PFPeSND—Below MRL2025-06-17
9Cl-PF3ONSND—Below MRL2025-06-17
11Cl-PF3OUdSND—Below MRL2025-06-17
PFUnAND—Below MRL2025-06-17
PFHxAND—Below MRL2025-06-17
PFDoAND—Below MRL2025-06-17
PFDAND—Below MRL2025-06-17
PFTrDAND—Below MRL2025-06-17
PFOSND4Below MRL2025-06-17
PFHxSND10Below MRL2025-06-17
PFHpAND—Below MRL2025-06-17
PFBSND—Below MRL2025-06-17
NMeFOSAAND—Below MRL2025-06-17
lithiumND—Below MRL2025-06-17
NEtFOSAAND—Below MRL2025-06-17
PFOAND4Below MRL2025-06-17
PFTAND—Below MRL2025-06-17
8:2 FTSND—Below MRL2025-06-17
NEtFOSAAND—Below MRL2025-06-17
lithiumND—Below MRL2025-06-17
PFPeSND—Below MRL2025-06-17
NFDHAND—Below MRL2025-06-17
PFEESAND—Below MRL2025-06-17
PFMBAND—Below MRL2025-06-17
PFMPAND—Below MRL2025-06-17
4:2 FTSND—Below MRL2025-06-17
6:2 FTSND—Below MRL2025-06-17
PFBAND—Below MRL2025-06-17
HFPO-DAND10Below MRL2025-06-17
ADONAND—Below MRL2025-06-17
9Cl-PF3ONSND—Below MRL2025-06-17
NMeFOSAAND—Below MRL2025-06-17
PFTrDAND—Below MRL2025-06-17
PFPeAND—Below MRL2025-06-17
PFTAND—Below MRL2025-06-17
11Cl-PF3OUdSND—Below MRL2025-06-17
PFHpSND—Below MRL2025-06-17
PFBSND—Below MRL2025-06-17
PFHpAND—Below MRL2025-06-17
PFHxSND10Below MRL2025-06-17
PFNAND10Below MRL2025-06-17
PFOSND4Below MRL2025-06-17
PFOAND4Below MRL2025-06-17
PFDAND—Below MRL2025-06-17
PFDoAND—Below MRL2025-06-17
PFHxAND—Below MRL2025-06-17
PFUnAND—Below MRL2025-06-17
NEtFOSAAND—Below MRL2025-06-17
PFHxAND—Below MRL2025-06-17
PFDoAND—Below MRL2025-06-17
PFDAND—Below MRL2025-06-17
PFUnAND—Below MRL2025-06-17
PFUnAND—Below MRL2025-06-17
PFOSND4Below MRL2025-06-17
PFNAND10Below MRL2025-06-17
9Cl-PF3ONSND—Below MRL2025-06-17
11Cl-PF3OUdSND—Below MRL2025-06-17
PFTAND—Below MRL2025-06-17
NMeFOSAAND—Below MRL2025-06-17
PFTrDAND—Below MRL2025-06-17
PFHpSND—Below MRL2025-06-17
PFUnAND—Below MRL2025-06-17
8:2 FTSND—Below MRL2025-06-17
lithiumND—Below MRL2025-06-17
NFDHAND—Below MRL2025-06-17
PFEESAND—Below MRL2025-06-17
PFMBAND—Below MRL2025-06-17
PFPeSND—Below MRL2025-06-17
PFMPAND—Below MRL2025-06-17
PFHpAND—Below MRL2025-06-17
4:2 FTSND—Below MRL2025-06-17
6:2 FTSND—Below MRL2025-06-17
PFBAND—Below MRL2025-06-17
HFPO-DAND10Below MRL2025-06-17
ADONAND—Below MRL2025-06-17
PFHxSND10Below MRL2025-06-17
PFPeAND—Below MRL2025-06-17
NEtFOSAAND—Below MRL2025-06-17
8:2 FTSND—Below MRL2025-06-17
PFTAND—Below MRL2025-06-17
lithiumND—Below MRL2025-06-17
PFHpSND—Below MRL2025-06-17
PFPeSND—Below MRL2025-06-17
NFDHAND—Below MRL2025-06-17
PFEESAND—Below MRL2025-06-17
PFMBAND—Below MRL2025-06-17
PFMPAND—Below MRL2025-06-17
4:2 FTSND—Below MRL2025-06-17
6:2 FTSND—Below MRL2025-06-17
PFBAND—Below MRL2025-06-17
HFPO-DAND10Below MRL2025-06-17
ADONAND—Below MRL2025-06-17
PFBSND—Below MRL2025-06-17
PFTrDAND—Below MRL2025-06-17
PFPeAND—Below MRL2025-06-17
NMeFOSAAND—Below MRL2025-06-17
9Cl-PF3ONSND—Below MRL2025-06-17
PFHpAND—Below MRL2025-06-17
PFHxSND10Below MRL2025-06-17
PFNAND10Below MRL2025-06-17
PFOSND4Below MRL2025-06-17
PFOAND4Below MRL2025-06-17
PFDAND—Below MRL2025-06-17
PFDoAND—Below MRL2025-06-17
PFHxAND—Below MRL2025-06-17
PFOA6.54Exceeds2025-06-17
PFBS3.9—2025-06-17

Violation history

Monitoring & Reporting - PFOS(PFOS)
2023-01-01 · Resolved · Tier 3
Monitoring & Reporting - PFHxS(PFHxS)
2023-01-01 · Resolved · Tier 3
Monitoring & Reporting - PFNA(PFNA)
2023-01-01 · Resolved · Tier 3
Monitoring & Reporting - PFBS(PFBS)
2023-01-01 · Resolved · Tier 3
Monitoring & Reporting - Hazard Index PFAS(Hazard Index PFAS)
2023-01-01 · Resolved · Tier 3
Monitoring & Reporting - PFHxA(PFHxA)
2023-01-01 · Resolved · Tier 3
Monitoring & Reporting - Hazard Index PFAS(Hazard Index PFAS)
2023-01-01 · Resolved · Tier 3

Next steps