PFAS Comply

DERRY WATER DEPT

PWSID: NH0611010 · DERRY, NH · Serving 17,210 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

PFOA4.6 ppt(MCL: 4 ppt)

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

Detection summary

1
PFAS compounds detected
4.6 ppt
Highest single detection
2024-07-08
Latest sample date
partial
Data completeness

All PFAS detection results

Source: EPA UCMR5 (UCMR5)

ContaminantResult (ppt)MCL (ppt)StatusSample date
9Cl-PF3ONSND—Below MRL2024-07-31
NEtFOSAAND—Below MRL2024-01-31
NMeFOSAAND—Below MRL2024-01-31
PFHpSND—Below MRL2024-01-31
PFPeSND—Below MRL2024-01-31
NFDHAND—Below MRL2024-01-31
4:2 FTSND—Below MRL2024-01-31
6:2 FTSND—Below MRL2024-01-31
PFBAND—Below MRL2024-01-31
HFPO-DAND10Below MRL2024-01-31
ADONAND—Below MRL2024-01-31
9Cl-PF3ONSND—Below MRL2024-01-31
11Cl-PF3OUdSND—Below MRL2024-01-31
PFTrDAND—Below MRL2024-01-31
PFHxAND—Below MRL2024-01-31
PFDAND—Below MRL2024-01-31
PFDAND—Below MRL2024-10-02
11Cl-PF3OUdSND—Below MRL2024-10-02
PFOSND4Below MRL2024-10-02
PFNAND10Below MRL2024-01-31
PFHxSND10Below MRL2024-01-31
PFBSND—Below MRL2024-01-31
PFEESAND—Below MRL2024-01-31
PFMBAND—Below MRL2024-01-31
PFPeAND—Below MRL2024-01-31
PFMPAND—Below MRL2024-01-31
8:2 FTSND—Below MRL2024-01-31
PFHpAND—Below MRL2024-01-31
lithiumND—Below MRL2024-01-03
PFUnAND—Below MRL2024-01-31
PFOSND4Below MRL2024-01-31
PFTAND—Below MRL2024-01-31
8:2 FTSND—Below MRL2024-04-23
PFNAND10Below MRL2024-04-23
PFOSND4Below MRL2024-04-23
PFOAND4Below MRL2024-04-23
PFDAND—Below MRL2024-04-23
PFHxAND—Below MRL2024-04-23
11Cl-PF3OUdSND—Below MRL2024-04-23
9Cl-PF3ONSND—Below MRL2024-04-23
ADONAND—Below MRL2024-04-23
HFPO-DAND10Below MRL2024-04-23
PFBAND—Below MRL2024-04-23
PFHxSND10Below MRL2024-04-23
4:2 FTSND—Below MRL2024-04-23
PFDoAND—Below MRL2024-04-23
PFMPAND—Below MRL2024-04-23
PFPeAND—Below MRL2024-04-23
PFMBAND—Below MRL2024-04-23
PFEESAND—Below MRL2024-04-23
NFDHAND—Below MRL2024-04-23
PFPeSND—Below MRL2024-04-23
PFHpSND—Below MRL2024-04-23
PFBSND—Below MRL2024-04-23
PFHpAND—Below MRL2024-04-23
6:2 FTSND—Below MRL2024-04-23
NEtFOSAAND—Below MRL2024-04-02
NMeFOSAAND—Below MRL2024-04-02
PFTrDAND—Below MRL2024-04-02
PFTAND—Below MRL2024-04-02
lithiumND—Below MRL2024-04-02
PFUnAND—Below MRL2024-04-23
PFHpSND—Below MRL2024-07-31
NEtFOSAAND—Below MRL2024-07-08
PFTrDAND—Below MRL2024-07-08
PFHxSND10Below MRL2024-07-31
PFTAND—Below MRL2024-07-08
PFUnAND—Below MRL2024-07-31
PFHpAND—Below MRL2024-07-31
8:2 FTSND—Below MRL2024-07-31
ADONAND—Below MRL2024-07-31
HFPO-DAND10Below MRL2024-07-31
PFOSND4Below MRL2024-07-31
NFDHAND—Below MRL2024-07-31
PFMPAND—Below MRL2024-07-31
PFMBAND—Below MRL2024-07-31
PFEESAND—Below MRL2024-07-31
PFBSND—Below MRL2024-07-31
lithiumND—Below MRL2024-07-08
PFPeAND—Below MRL2024-07-31
4:2 FTSND—Below MRL2024-07-31
6:2 FTSND—Below MRL2024-07-31
PFBAND—Below MRL2024-07-31
PFPeSND—Below MRL2024-07-31
11Cl-PF3OUdSND—Below MRL2024-07-31
NMeFOSAAND—Below MRL2024-07-08
PFHxAND—Below MRL2024-07-31
PFDoAND—Below MRL2024-07-31
PFDAND—Below MRL2024-07-31
PFNAND10Below MRL2024-07-31
PFDoAND—Below MRL2024-01-31
PFHpAND—Below MRL2024-10-02
PFBSND—Below MRL2024-10-02
PFHpSND—Below MRL2024-10-02
PFPeSND—Below MRL2024-10-02
NFDHAND—Below MRL2024-10-02
PFEESAND—Below MRL2024-10-02
PFMBAND—Below MRL2024-10-02
PFPeAND—Below MRL2024-10-02
PFMPAND—Below MRL2024-10-02
6:2 FTSND—Below MRL2024-10-02
4:2 FTSND—Below MRL2024-10-02
PFHxSND10Below MRL2024-10-02
PFBAND—Below MRL2024-10-02
lithiumND—Below MRL2024-10-02
8:2 FTSND—Below MRL2024-10-02
NEtFOSAAND—Below MRL2024-10-02
PFTAND—Below MRL2024-10-02
PFNAND10Below MRL2024-10-02
NMeFOSAAND—Below MRL2024-10-02
PFTrDAND—Below MRL2024-10-02
HFPO-DAND10Below MRL2024-10-02
ADONAND—Below MRL2024-10-02
9Cl-PF3ONSND—Below MRL2024-10-02
PFUnAND—Below MRL2024-10-02
PFHxAND—Below MRL2024-10-02
PFDoAND—Below MRL2024-10-02
PFOA4.64Exceeds2024-01-31
PFOA4.24Exceeds2024-10-02
PFOA44Detected2024-07-31

Next steps