PFAS Comply

PORT SULPHUR WATER DISTRICT

PWSID: LA1075006 · BELLE CHASSE, LA · Serving 10,308 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

PFOS4.6 ppt(MCL: 4 ppt)

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

Detection summary

3
PFAS compounds detected
11000 ppt
Highest single detection
2025-08-06
Latest sample date
partial
Data completeness

All PFAS detection results

Source: EPA UCMR5 (UCMR5)

ContaminantResult (ppt)MCL (ppt)StatusSample date
PFPeSND—Below MRL2025-11-04
PFPeSND—Below MRL2025-02-05
NFDHAND—Below MRL2025-02-05
PFEESAND—Below MRL2025-02-05
PFMBAND—Below MRL2025-02-05
4:2 FTSND—Below MRL2025-02-05
6:2 FTSND—Below MRL2025-02-05
PFBAND—Below MRL2025-02-05
HFPO-DAND10Below MRL2025-02-05
ADONAND—Below MRL2025-02-05
9Cl-PF3ONSND—Below MRL2025-02-05
11Cl-PF3OUdSND—Below MRL2025-02-05
PFUnAND—Below MRL2025-02-05
PFHpSND—Below MRL2025-02-05
PFDAND—Below MRL2025-02-05
PFDoAND—Below MRL2025-02-05
PFNAND10Below MRL2025-02-05
PFHxSND10Below MRL2025-02-05
PFHpAND—Below MRL2025-02-05
PFBSND—Below MRL2025-02-05
PFMPAND—Below MRL2025-02-05
8:2 FTSND—Below MRL2025-02-05
PFPeAND—Below MRL2025-02-05
lithiumND—Below MRL2025-02-05
PFTAND—Below MRL2025-02-05
PFTrDAND—Below MRL2025-02-05
NEtFOSAAND—Below MRL2025-02-05
NMeFOSAAND—Below MRL2025-02-05
PFHxAND—Below MRL2025-02-05
PFOAND4Below MRL2025-02-05
PFUnAND—Below MRL2025-05-07
PFNAND10Below MRL2025-05-07
PFHxSND10Below MRL2025-05-07
PFHpAND—Below MRL2025-05-07
PFBSND—Below MRL2025-05-07
PFEESAND—Below MRL2025-11-04
PFMPAND—Below MRL2025-11-04
PFNAND10Below MRL2025-11-04
PFOSND4Below MRL2025-02-05
PFHpSND—Below MRL2025-05-07
PFPeSND—Below MRL2025-05-07
PFMBAND—Below MRL2025-05-07
PFTAND—Below MRL2025-05-07
NMeFOSAAND—Below MRL2025-05-07
NEtFOSAAND—Below MRL2025-05-07
PFTrDAND—Below MRL2025-05-07
lithiumND—Below MRL2025-05-07
NFDHAND—Below MRL2025-05-07
6:2 FTSND—Below MRL2025-05-07
PFPeAND—Below MRL2025-05-07
PFMPAND—Below MRL2025-05-07
PFEESAND—Below MRL2025-05-07
4:2 FTSND—Below MRL2025-05-07
PFOAND4Below MRL2025-05-07
PFBAND—Below MRL2025-05-07
HFPO-DAND10Below MRL2025-05-07
9Cl-PF3ONSND—Below MRL2025-05-07
11Cl-PF3OUdSND—Below MRL2025-05-07
PFHxAND—Below MRL2025-05-07
PFDoAND—Below MRL2025-05-07
ADONAND—Below MRL2025-05-07
8:2 FTSND—Below MRL2025-05-07
PFDAND—Below MRL2025-05-07
PFTAND—Below MRL2025-08-06
PFPeAND—Below MRL2025-08-06
PFMBAND—Below MRL2025-08-06
PFEESAND—Below MRL2025-08-06
NFDHAND—Below MRL2025-08-06
PFPeSND—Below MRL2025-08-06
PFHpSND—Below MRL2025-08-06
PFTrDAND—Below MRL2025-08-06
ADONAND—Below MRL2025-08-06
lithiumND—Below MRL2025-08-06
PFHpAND—Below MRL2025-08-06
PFMPAND—Below MRL2025-08-06
PFBSND—Below MRL2025-08-06
4:2 FTSND—Below MRL2025-08-06
NEtFOSAAND—Below MRL2025-08-06
PFHxSND10Below MRL2025-08-06
PFNAND10Below MRL2025-08-06
PFBAND—Below MRL2025-08-06
6:2 FTSND—Below MRL2025-08-06
NMeFOSAAND—Below MRL2025-08-06
8:2 FTSND—Below MRL2025-08-06
PFOAND4Below MRL2025-08-06
PFDAND—Below MRL2025-08-06
PFHxAND—Below MRL2025-08-06
9Cl-PF3ONSND—Below MRL2025-08-06
11Cl-PF3OUdSND—Below MRL2025-08-06
PFUnAND—Below MRL2025-08-06
HFPO-DAND10Below MRL2025-08-06
PFDoAND—Below MRL2025-08-06
PFHxSND10Below MRL2025-11-04
PFHpAND—Below MRL2025-11-04
PFBSND—Below MRL2025-11-04
PFHxAND—Below MRL2025-11-04
HFPO-DAND10Below MRL2025-11-04
PFOSND4Below MRL2025-11-04
6:2 FTSND—Below MRL2025-11-04
PFOAND4Below MRL2025-11-04
PFDAND—Below MRL2025-11-04
4:2 FTSND—Below MRL2025-11-04
ADONAND—Below MRL2025-11-04
9Cl-PF3ONSND—Below MRL2025-11-04
PFUnAND—Below MRL2025-11-04
PFTrDAND—Below MRL2025-11-04
PFDoAND—Below MRL2025-11-04
8:2 FTSND—Below MRL2025-11-04
NMeFOSAAND—Below MRL2025-11-04
NFDHAND—Below MRL2025-11-04
PFHpSND—Below MRL2025-11-04
NEtFOSAAND—Below MRL2025-11-04
PFTAND—Below MRL2025-11-04
11Cl-PF3OUdSND—Below MRL2025-11-04
PFPeAND—Below MRL2025-11-04
PFMBAND—Below MRL2025-11-04
lithium11000—2025-11-04
PFBA5.6—2025-11-04
PFOS4.64Exceeds2025-05-07
PFOS44Detected2025-08-06

Next steps