PFAS Comply

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PWSID: NH1951020 · PORTSMOUTH, NH · Serving 9,900 people

Type: CWSOwner: SSource: GW
Settlement eligible
May qualify for 3M/DuPont settlement funds
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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

1
PFAS compounds detected
15.1 ppt
Highest single detection
2025-05-12
Latest sample date
partial
Data completeness

All PFAS detection results

Source: EPA UCMR5 (UCMR5)

ContaminantResult (ppt)MCL (ppt)StatusSample date
PFOSND4Below MRL2025-05-12
PFPeSND—Below MRL2025-05-12
PFHpSND—Below MRL2025-05-12
PFBSND—Below MRL2025-05-12
PFHxSND10Below MRL2025-05-12
NFDHAND—Below MRL2025-05-12
NEtFOSAAND—Below MRL2025-05-12
PFHpAND—Below MRL2025-05-12
6:2 FTSND—Below MRL2025-05-12
ADONAND—Below MRL2025-05-12
lithiumND—Below MRL2025-05-12
8:2 FTSND—Below MRL2025-05-12
4:2 FTSND—Below MRL2025-05-12
PFTrDAND—Below MRL2025-05-12
PFDoAND—Below MRL2025-05-12
9Cl-PF3ONSND—Below MRL2025-05-12
11Cl-PF3OUdSND—Below MRL2025-05-12
PFUnAND—Below MRL2025-05-12
PFTAND—Below MRL2025-05-12
PFHxAND—Below MRL2025-05-12
PFEESAND—Below MRL2025-05-12
PFDAND—Below MRL2025-05-12
PFOAND4Below MRL2025-05-12
PFPeAND—Below MRL2025-05-12
PFNAND10Below MRL2025-05-12
PFMBAND—Below MRL2025-05-12
PFMPAND—Below MRL2025-05-12
HFPO-DAND10Below MRL2025-05-12
NMeFOSAAND—Below MRL2025-05-12
PFBA15.1—2025-05-12

Next steps