PFAS Comply

QUONSET BUSINESS PARK

PWSID: RI1592025 · NORTH KINGSTOWN, RI · Serving 13,000 people

Type: NTNCWSOwner: SSource: 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

PFOA15 ppt(MCL: 4 ppt)
PFOS5 ppt(MCL: 4 ppt)

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

Detection summary

8
PFAS compounds detected
35800 ppt
Highest single detection
2024-09-17
Latest sample date
complete
Data completeness

All PFAS detection results

Source: EPA UCMR5 (UCMR5)

ContaminantResult (ppt)MCL (ppt)StatusSample date
PFBAND—Below MRL2024-09-17
PFHxAND—Below MRL2024-09-17
PFUnAND—Below MRL2024-09-17
9Cl-PF3ONSND—Below MRL2024-09-17
HFPO-DAND10Below MRL2024-09-17
PFBAND—Below MRL2024-09-17
6:2 FTSND—Below MRL2024-09-17
PFDoAND—Below MRL2024-09-17
8:2 FTSND—Below MRL2024-09-17
11Cl-PF3OUdSND—Below MRL2024-09-17
PFPeAND—Below MRL2024-09-17
PFMBAND—Below MRL2024-09-17
PFEESAND—Below MRL2024-09-17
NFDHAND—Below MRL2024-09-17
PFPeSND—Below MRL2024-09-17
PFHpSND—Below MRL2024-09-17
4:2 FTSND—Below MRL2024-09-17
PFTrDAND—Below MRL2024-09-17
ADONAND—Below MRL2024-09-17
PFTAND—Below MRL2024-09-17
PFDAND—Below MRL2024-09-17
NEtFOSAAND—Below MRL2024-09-17
NMeFOSAAND—Below MRL2024-09-17
lithiumND—Below MRL2024-09-17
PFBSND—Below MRL2024-09-17
HFPO-DAND10Below MRL2024-09-17
ADONAND—Below MRL2024-09-17
6:2 FTSND—Below MRL2025-03-06
HFPO-DAND10Below MRL2025-03-06
ADONAND—Below MRL2025-03-06
9Cl-PF3ONSND—Below MRL2025-03-06
4:2 FTSND—Below MRL2025-03-06
PFUnAND—Below MRL2025-03-06
PFOSND4Below MRL2025-03-06
PFDoAND—Below MRL2025-03-06
PFDAND—Below MRL2025-03-06
PFHpAND—Below MRL2025-03-06
PFNAND10Below MRL2025-03-06
11Cl-PF3OUdSND—Below MRL2025-03-06
NEtFOSAAND—Below MRL2025-03-06
8:2 FTSND—Below MRL2025-03-06
NMeFOSAAND—Below MRL2025-03-06
PFTrDAND—Below MRL2025-03-06
PFTAND—Below MRL2025-03-06
lithiumND—Below MRL2025-03-06
PFHpSND—Below MRL2025-03-06
PFPeSND—Below MRL2025-03-06
PFEESAND—Below MRL2025-03-06
PFMBAND—Below MRL2025-03-06
PFMPAND—Below MRL2025-03-06
NFDHAND—Below MRL2025-03-06
PFBSND—Below MRL2025-03-06
PFNAND10Below MRL2024-09-17
PFHpAND—Below MRL2024-09-17
PFPeSND—Below MRL2025-03-06
11Cl-PF3OUdSND—Below MRL2025-03-06
9Cl-PF3ONSND—Below MRL2025-03-06
ADONAND—Below MRL2025-03-06
HFPO-DAND10Below MRL2025-03-06
PFBAND—Below MRL2025-03-06
6:2 FTSND—Below MRL2025-03-06
4:2 FTSND—Below MRL2025-03-06
NFDHAND—Below MRL2025-03-06
PFEESAND—Below MRL2025-03-06
PFMPAND—Below MRL2025-03-06
PFUnAND—Below MRL2025-03-06
8:2 FTSND—Below MRL2025-03-06
PFTrDAND—Below MRL2025-03-06
PFMBAND—Below MRL2025-03-06
NEtFOSAAND—Below MRL2025-03-06
NMeFOSAAND—Below MRL2025-03-06
lithiumND—Below MRL2025-03-06
PFHpAND—Below MRL2025-03-06
PFNAND10Below MRL2025-03-06
PFDAND—Below MRL2025-03-06
PFDoAND—Below MRL2025-03-06
PFTAND—Below MRL2025-03-06
PFHpSND—Below MRL2025-03-06
PFBSND—Below MRL2024-09-17
HFPO-DAND10Below MRL2024-09-17
PFHpAND—Below MRL2024-09-17
PFNAND10Below MRL2024-09-17
PFOSND4Below MRL2024-09-17
PFDAND—Below MRL2024-09-17
PFDoAND—Below MRL2024-09-17
PFUnAND—Below MRL2024-09-17
11Cl-PF3OUdSND—Below MRL2024-09-17
ADONAND—Below MRL2024-09-17
PFHpSND—Below MRL2024-09-17
PFBAND—Below MRL2024-09-17
6:2 FTSND—Below MRL2024-09-17
4:2 FTSND—Below MRL2024-09-17
8:2 FTSND—Below MRL2024-09-17
PFMPAND—Below MRL2024-09-17
PFMBAND—Below MRL2024-09-17
PFEESAND—Below MRL2024-09-17
NFDHAND—Below MRL2024-09-17
PFPeSND—Below MRL2024-09-17
9Cl-PF3ONSND—Below MRL2024-09-17
PFTrDAND—Below MRL2024-09-17
PFTAND—Below MRL2024-09-17
NEtFOSAAND—Below MRL2024-09-17
NMeFOSAAND—Below MRL2024-09-17
PFHpAND—Below MRL2025-03-06
PFBSND—Below MRL2025-03-06
PFHpSND—Below MRL2025-03-06
PFPeSND—Below MRL2025-03-06
PFEESAND—Below MRL2025-03-06
lithiumND—Below MRL2025-03-06
NMeFOSAAND—Below MRL2025-03-06
NEtFOSAAND—Below MRL2025-03-06
PFNAND10Below MRL2025-03-06
PFTrDAND—Below MRL2025-03-06
PFTAND—Below MRL2025-03-06
NFDHAND—Below MRL2025-03-06
PFDAND—Below MRL2025-03-06
PFMBAND—Below MRL2025-03-06
PFOSND4Below MRL2025-03-06
PFMPAND—Below MRL2025-03-06
8:2 FTSND—Below MRL2025-03-06
6:2 FTSND—Below MRL2025-03-06
PFBAND—Below MRL2025-03-06
HFPO-DAND10Below MRL2025-03-06
ADONAND—Below MRL2025-03-06
9Cl-PF3ONSND—Below MRL2025-03-06
11Cl-PF3OUdSND—Below MRL2025-03-06
4:2 FTSND—Below MRL2025-03-06
PFDoAND—Below MRL2025-03-06
PFUnAND—Below MRL2025-03-06
6:2 FTSND—Below MRL2024-09-17
9Cl-PF3ONSND—Below MRL2024-09-17
NEtFOSAAND—Below MRL2024-09-17
PFTrDAND—Below MRL2024-09-17
PFTAND—Below MRL2024-09-17
PFHpSND—Below MRL2024-09-17
PFPeSND—Below MRL2024-09-17
NFDHAND—Below MRL2024-09-17
PFEESAND—Below MRL2024-09-17
PFMBAND—Below MRL2024-09-17
PFMPAND—Below MRL2024-09-17
4:2 FTSND—Below MRL2024-09-17
NMeFOSAAND—Below MRL2024-09-17
8:2 FTSND—Below MRL2024-09-17
PFMPAND—Below MRL2024-09-17
11Cl-PF3OUdSND—Below MRL2024-09-17
PFUnAND—Below MRL2024-09-17
PFDoAND—Below MRL2024-09-17
PFDAND—Below MRL2024-09-17
PFOSND4Below MRL2024-09-17
PFNAND10Below MRL2024-09-17
PFHpAND—Below MRL2024-09-17
PFBSND—Below MRL2024-09-17
lithiumND—Below MRL2024-09-17
lithium35800—2024-09-17
PFOA154Exceeds2025-03-06
PFOA10.54Exceeds2025-03-06
PFOA9.54Exceeds2024-09-17
PFOA9.24Exceeds2024-09-17
PFPeA9—2024-09-17
PFHxA8.8—2024-09-17
PFHxA8.8—2025-03-06
PFHxS8.610Detected2024-09-17
PFPeA8.5—2025-03-06
PFOA7.84Exceeds2024-09-17
PFOA7.74Exceeds2025-03-06
PFHxS6.510Detected2025-03-06
PFHxS5.510Detected2024-09-17
PFHxA5.3—2025-03-06
PFBA5.2—2025-03-06
PFHxS5.110Detected2024-09-17
PFOS54Exceeds2025-03-06
PFHxS510Detected2025-03-06
PFPeA4.9—2025-03-06
PFPeA4.7—2025-03-06
PFPeA4.6—2024-09-17
PFHxA4.5—2024-09-17
PFHxA4.4—2025-03-06
PFOS44Detected2024-09-17
PFHxS3.810Detected2025-03-06
PFBS3—2025-03-06

Violation history

Monitoring & Reporting - PFOA(PFOA)
2023-07-01 · Resolved · Tier 3
Monitoring & Reporting - PFOS(PFOS)
2023-07-01 · Resolved · Tier 3
Monitoring & Reporting - PFHxS(PFHxS)
2023-07-01 · Resolved · Tier 3
Monitoring & Reporting - HFPO-DA (GenX)(HFPO-DA (GenX))
2023-07-01 · Resolved · Tier 3
Monitoring & Reporting - PFNA(PFNA)
2023-07-01 · Resolved · Tier 3
Monitoring & Reporting - PFBS(PFBS)
2023-07-01 · Resolved · Tier 3
Monitoring & Reporting - Hazard Index PFAS(Hazard Index PFAS)
2023-07-01 · Resolved · Tier 3
Monitoring & Reporting - PFHxA(PFHxA)
2023-07-01 · Resolved · Tier 3
Monitoring & Reporting - Hazard Index PFAS(Hazard Index PFAS)
2023-07-01 · Resolved · Tier 3

Next steps