PFAS Comply

SIOUX CITY WATER SUPPLY

PWSID: IA9778054 · SIOUX CITY, IA · Serving 85,791 people

Type: CWSOwner: LSource: SW
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 ppt(MCL: 4 ppt)
PFOS4.3 ppt(MCL: 4 ppt)

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

Detection summary

10
PFAS compounds detected
240000 ppt
Highest single detection
2024-07-15
Latest sample date
complete
Data completeness

All PFAS detection results

Source: EPA UCMR5 (UCMR5)

ContaminantResult (ppt)MCL (ppt)StatusSample date
9Cl-PF3ONSND—Below MRL2024-07-15
6:2 FTSND—Below MRL2023-10-16
8:2 FTSND—Below MRL2023-10-16
PFMPAND—Below MRL2023-10-16
PFPeAND—Below MRL2023-10-16
PFEESAND—Below MRL2023-10-16
PFBAND—Below MRL2023-10-16
PFPeSND—Below MRL2023-10-16
NMeFOSAAND—Below MRL2023-10-16
NEtFOSAAND—Below MRL2023-10-16
PFTrDAND—Below MRL2023-10-16
PFTAND—Below MRL2023-10-16
PFHpSND—Below MRL2023-10-16
PFMBAND—Below MRL2023-10-16
PFNAND10Below MRL2023-10-16
PFBSND—Below MRL2023-10-16
NFDHAND—Below MRL2024-04-16
PFHpSND—Below MRL2024-04-16
11Cl-PF3OUdSND—Below MRL2024-04-16
9Cl-PF3ONSND—Below MRL2024-04-16
HFPO-DAND10Below MRL2024-04-16
6:2 FTSND—Below MRL2024-04-16
4:2 FTSND—Below MRL2024-04-16
8:2 FTSND—Below MRL2024-04-16
PFMPAND—Below MRL2024-04-16
PFDoAND—Below MRL2024-04-16
ADONAND—Below MRL2024-04-16
NMeFOSAAND—Below MRL2024-04-16
NEtFOSAAND—Below MRL2024-04-16
PFTrDAND—Below MRL2024-04-16
PFTAND—Below MRL2024-04-16
PFDAND—Below MRL2024-04-16
PFHpAND—Below MRL2024-04-16
PFMBAND—Below MRL2024-07-15
PFEESAND—Below MRL2024-07-15
6:2 FTSND—Below MRL2024-07-15
PFMPAND—Below MRL2024-07-15
PFTAND—Below MRL2024-07-15
PFTrDAND—Below MRL2024-07-15
NMeFOSAAND—Below MRL2024-07-15
NEtFOSAAND—Below MRL2024-07-15
8:2 FTSND—Below MRL2024-07-15
NFDHAND—Below MRL2024-07-15
4:2 FTSND—Below MRL2024-07-15
PFUnAND—Below MRL2024-07-15
PFNAND10Below MRL2024-07-15
PFHpSND—Below MRL2024-07-15
HFPO-DAND10Below MRL2024-07-15
ADONAND—Below MRL2024-07-15
11Cl-PF3OUdSND—Below MRL2024-07-15
PFDoAND—Below MRL2024-07-15
PFDAND—Below MRL2024-07-15
PFOAND4Below MRL2024-07-15
PFOSND4Below MRL2024-07-15
NFDHAND—Below MRL2023-10-16
4:2 FTSND—Below MRL2023-10-16
PFHxSND10Below MRL2023-10-16
HFPO-DAND10Below MRL2023-10-16
PFOSND4Below MRL2023-10-16
PFOAND4Below MRL2023-10-16
PFDAND—Below MRL2023-10-16
PFDoAND—Below MRL2023-10-16
PFHxAND—Below MRL2023-10-16
PFUnAND—Below MRL2023-10-16
11Cl-PF3OUdSND—Below MRL2023-10-16
9Cl-PF3ONSND—Below MRL2023-10-16
ADONAND—Below MRL2023-10-16
PFHpAND—Below MRL2023-10-16
PFTAND—Below MRL2024-01-16
PFTrDAND—Below MRL2024-01-16
NEtFOSAAND—Below MRL2024-01-16
NMeFOSAAND—Below MRL2024-01-16
ADONAND—Below MRL2024-02-13
6:2 FTSND—Below MRL2024-02-13
PFHpAND—Below MRL2024-02-13
PFHxSND10Below MRL2024-02-13
PFNAND10Below MRL2024-02-13
PFOSND4Below MRL2024-02-13
PFOAND4Below MRL2024-02-13
PFDAND—Below MRL2024-02-13
PFHxAND—Below MRL2024-02-13
11Cl-PF3OUdSND—Below MRL2024-02-13
9Cl-PF3ONSND—Below MRL2024-02-13
PFBSND—Below MRL2024-02-13
PFBAND—Below MRL2024-02-13
PFDoAND—Below MRL2024-02-13
4:2 FTSND—Below MRL2024-02-13
8:2 FTSND—Below MRL2024-02-13
PFMPAND—Below MRL2024-02-13
PFPeAND—Below MRL2024-02-13
PFMBAND—Below MRL2024-02-13
PFEESAND—Below MRL2024-02-13
NFDHAND—Below MRL2024-02-13
PFPeSND—Below MRL2024-02-13
PFHpSND—Below MRL2024-02-13
HFPO-DAND10Below MRL2024-02-13
PFUnAND—Below MRL2024-02-13
PFPeAND—Below MRL2024-04-16
HFPO-DAND10Below MRL2024-04-16
PFBAND—Below MRL2024-04-16
6:2 FTSND—Below MRL2024-04-16
4:2 FTSND—Below MRL2024-04-16
9Cl-PF3ONSND—Below MRL2024-04-16
PFMPAND—Below MRL2024-04-16
11Cl-PF3OUdSND—Below MRL2024-04-16
PFMBAND—Below MRL2024-04-16
PFEESAND—Below MRL2024-04-16
NFDHAND—Below MRL2024-04-16
PFPeSND—Below MRL2024-04-16
PFHpSND—Below MRL2024-04-16
PFOAND4Below MRL2024-04-16
8:2 FTSND—Below MRL2024-04-16
PFOSND4Below MRL2024-04-16
PFNAND10Below MRL2024-04-16
PFHxSND10Below MRL2024-04-16
PFHpAND—Below MRL2024-04-16
PFBSND—Below MRL2024-04-16
ADONAND—Below MRL2024-04-16
PFDoAND—Below MRL2024-04-16
PFHxAND—Below MRL2024-04-16
PFUnAND—Below MRL2024-04-16
PFTAND—Below MRL2024-04-16
PFTrDAND—Below MRL2024-04-16
NEtFOSAAND—Below MRL2024-04-16
NMeFOSAAND—Below MRL2024-04-16
PFDAND—Below MRL2024-04-16
ADONAND—Below MRL2024-07-15
PFNAND10Below MRL2024-07-15
PFMBAND—Below MRL2024-07-15
PFEESAND—Below MRL2024-07-15
NFDHAND—Below MRL2024-07-15
PFTAND—Below MRL2024-07-15
NMeFOSAAND—Below MRL2024-07-15
NEtFOSAAND—Below MRL2024-07-15
PFTrDAND—Below MRL2024-07-15
PFPeSND—Below MRL2024-07-15
PFHpSND—Below MRL2024-07-15
PFBSND—Below MRL2024-07-15
PFHpAND—Below MRL2024-07-15
PFBAND—Below MRL2024-07-15
4:2 FTSND—Below MRL2024-07-15
6:2 FTSND—Below MRL2024-07-15
PFOSND4Below MRL2024-07-15
PFOAND4Below MRL2024-07-15
PFDAND—Below MRL2024-07-15
PFDoAND—Below MRL2024-07-15
PFHxAND—Below MRL2024-07-15
PFUnAND—Below MRL2024-07-15
11Cl-PF3OUdSND—Below MRL2024-07-15
PFMPAND—Below MRL2024-07-15
9Cl-PF3ONSND—Below MRL2024-07-15
8:2 FTSND—Below MRL2024-07-15
PFPeAND—Below MRL2024-07-15
HFPO-DAND10Below MRL2024-07-15
PFHxSND10Below MRL2024-07-15
NFDHAND—Below MRL2023-10-16
ADONAND—Below MRL2023-10-16
NEtFOSAAND—Below MRL2023-10-16
PFTrDAND—Below MRL2023-10-16
PFTAND—Below MRL2023-10-16
PFEESAND—Below MRL2023-10-16
PFMBAND—Below MRL2023-10-16
PFMPAND—Below MRL2023-10-16
8:2 FTSND—Below MRL2023-10-16
4:2 FTSND—Below MRL2023-10-16
6:2 FTSND—Below MRL2023-10-16
NMeFOSAAND—Below MRL2023-10-16
HFPO-DAND10Below MRL2023-10-16
PFNAND10Below MRL2023-10-16
9Cl-PF3ONSND—Below MRL2023-10-16
11Cl-PF3OUdSND—Below MRL2023-10-16
PFUnAND—Below MRL2023-10-16
PFDoAND—Below MRL2023-10-16
PFDAND—Below MRL2023-10-16
PFOAND4Below MRL2023-10-16
PFOSND4Below MRL2023-10-16
PFHpSND—Below MRL2023-10-16
NFDHAND—Below MRL2024-01-16
6:2 FTSND—Below MRL2024-01-16
4:2 FTSND—Below MRL2024-01-16
8:2 FTSND—Below MRL2024-01-16
NMeFOSAAND—Below MRL2024-01-16
PFHpSND—Below MRL2024-01-16
PFTAND—Below MRL2024-01-16
PFTrDAND—Below MRL2024-01-16
NEtFOSAAND—Below MRL2024-01-16
PFEESAND—Below MRL2024-01-16
11Cl-PF3OUdSND—Below MRL2024-01-16
HFPO-DAND10Below MRL2024-01-16
PFDoAND—Below MRL2024-01-16
PFNAND10Below MRL2024-01-16
PFMPAND—Below MRL2024-01-16
PFDAND—Below MRL2024-01-16
PFMBAND—Below MRL2024-01-16
PFUnAND—Below MRL2024-01-16
ADONAND—Below MRL2024-01-16
9Cl-PF3ONSND—Below MRL2024-01-16
PFUnAND—Below MRL2024-04-16
PFNAND10Below MRL2024-04-16
PFMBAND—Below MRL2024-04-16
PFEESAND—Below MRL2024-04-16
lithium240000—2024-04-16
lithium230000—2024-07-15
lithium230000—2023-10-16
lithium200000—2024-01-16
lithium160000—2024-04-16
lithium150000—2023-10-16
lithium140000—2024-07-15
lithium130000—2024-01-16
PFHxS3510Exceeds2024-01-16
PFHxS3510Exceeds2024-04-16
PFHxA33—2024-01-16
PFHxS2910Exceeds2024-07-15
PFHxA28—2024-07-15
PFHxA23—2023-10-16
PFHxS2210Exceeds2023-10-16
PFPeA22—2024-04-16
PFPeA22—2024-01-16
PFBS21—2024-01-16
PFBS20—2024-04-16
PFPeA18—2024-07-15
PFBS17—2024-07-15
PFBS14—2023-10-16
PFPeA14—2023-10-16
PFPeS14—2024-01-16
PFPeS12—2024-04-16
PFPeS11—2024-07-15
PFBA9.2—2024-07-15
PFBA8.4—2024-01-16
PFPeS8.1—2023-10-16
PFBA7.9—2024-04-16
PFOA64Exceeds2024-01-16
PFBA5.8—2023-10-16
PFOA5.44Exceeds2024-04-16
PFHpA4.8—2024-01-16
PFOS4.34Exceeds2024-01-16
PFHpA4.3—2024-07-15
PFOS4.14Exceeds2024-04-16
PFHxA3.4—2024-04-16
PFHpA3.2—2023-10-16

Next steps