PFAS Comply

BLOCK ISLAND WATER COMPANY

PWSID: RI1858430 · BLOCK ISLAND, RI · Serving 9,999 people

Type: CWSOwner: LSource: GW
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

0
PFAS compounds detected
N/A ppt
Highest single detection
2024-06-18
Latest sample date
partial
Data completeness

All PFAS detection results

Source: EPA UCMR5 (UCMR5)

ContaminantResult (ppt)MCL (ppt)StatusSample date
PFHxSND10Below MRL2024-06-18
PFHpAND—Below MRL2024-06-18
PFOAND4Below MRL2024-06-18
PFBSND—Below MRL2024-06-18
PFEESAND—Below MRL2024-06-18
PFHpSND—Below MRL2024-06-18
PFPeSND—Below MRL2024-06-18
4:2 FTSND—Below MRL2024-06-18
PFMBAND—Below MRL2024-06-18
PFNAND10Below MRL2024-06-18
PFMPAND—Below MRL2024-06-18
NMeFOSAAND—Below MRL2024-06-18
NFDHAND—Below MRL2024-06-18
PFOSND4Below MRL2024-06-18
PFDAND—Below MRL2024-06-18
PFDoAND—Below MRL2024-06-18
PFHxAND—Below MRL2024-06-18
PFUnAND—Below MRL2024-06-18
11Cl-PF3OUdSND—Below MRL2024-06-18
9Cl-PF3ONSND—Below MRL2024-06-18
ADONAND—Below MRL2024-06-18
HFPO-DAND10Below MRL2024-06-18
PFBAND—Below MRL2024-06-18
lithiumND—Below MRL2024-06-18
PFTAND—Below MRL2024-06-18
NEtFOSAAND—Below MRL2024-06-18
8:2 FTSND—Below MRL2024-06-18
PFTrDAND—Below MRL2024-06-18
PFPeAND—Below MRL2024-06-18
6:2 FTSND—Below MRL2024-06-18
PFOAND4Below MRL2024-12-17
PFBAND—Below MRL2024-12-17
HFPO-DAND10Below MRL2024-12-17
ADONAND—Below MRL2024-12-17
9Cl-PF3ONSND—Below MRL2024-12-17
11Cl-PF3OUdSND—Below MRL2024-12-17
PFUnAND—Below MRL2024-12-17
6:2 FTSND—Below MRL2024-12-17
PFDoAND—Below MRL2024-12-17
PFDAND—Below MRL2024-12-17
PFNAND10Below MRL2024-12-17
PFHxSND10Below MRL2024-12-17
PFHpAND—Below MRL2024-12-17
PFBSND—Below MRL2024-12-17
PFHxAND—Below MRL2024-12-17
NMeFOSAAND—Below MRL2024-12-17
PFOSND4Below MRL2024-12-17
4:2 FTSND—Below MRL2024-12-17
PFMPAND—Below MRL2024-12-17
8:2 FTSND—Below MRL2024-12-17
NEtFOSAAND—Below MRL2024-12-17
PFTrDAND—Below MRL2024-12-17
PFTAND—Below MRL2024-12-17
PFMBAND—Below MRL2024-12-17
PFHpSND—Below MRL2024-12-17
PFPeSND—Below MRL2024-12-17
NFDHAND—Below MRL2024-12-17
PFEESAND—Below MRL2024-12-17
lithiumND—Below MRL2024-12-17
PFPeAND—Below MRL2024-12-17

Violation history

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 - PFHxA(PFHxA)
2023-07-01 · Resolved · Tier 3
Monitoring & Reporting - PFOA(PFOA)
2023-07-01 · Resolved · Tier 3
Monitoring & Reporting - HFPO-DA (GenX)(HFPO-DA (GenX))
2020-10-01 · Resolved · Tier 3
Monitoring & Reporting - PFBS(PFBS)
2017-10-01 · Resolved · Tier 3
Monitoring & Reporting - Hazard Index PFAS(Hazard Index PFAS)
2017-10-01 · Resolved · Tier 3
Monitoring & Reporting - PFHxA(PFHxA)
2017-10-01 · Resolved · Tier 3
Monitoring & Reporting - PFOA(PFOA)
2017-10-01 · Resolved · Tier 3
Monitoring & Reporting - Hazard Index PFAS(Hazard Index PFAS)
2017-10-01 · Resolved · Tier 3
Monitoring & Reporting - PFOS(PFOS)
2017-10-01 · Resolved · Tier 3
Monitoring & Reporting - PFHxS(PFHxS)
2017-10-01 · Resolved · Tier 3
Monitoring & Reporting - HFPO-DA (GenX)(HFPO-DA (GenX))
2017-10-01 · Resolved · Tier 3
Monitoring & Reporting - PFNA(PFNA)
2017-10-01 · Resolved · Tier 3

Next steps