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
Exact contamination levels
Upgrade to Pro to see PFOA/PFOS ppt values and MCL comparison charts.
Upgrade to ProDetection summary
N/A ppt
Highest single detection
2024-06-18
Latest sample date
All PFAS detection results
Source: EPA UCMR5 (UCMR5) · 58 compounds tested
| Contaminant | Result (ppt) | MCL (ppt) | Status | Sample date |
|---|
| PFHxS | ND | 10 | Below MRL | 2024-06-18 |
| PFHpA | ND | — | Below MRL | 2024-06-18 |
| PFOA | ND | 4 | Below MRL | 2024-06-18 |
| PFBS | ND | — | Below MRL | 2024-06-18 |
| PFEESA | ND | — | Below MRL | 2024-06-18 |
Violation history(14 violations, all resolved)
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
Violation details
Upgrade to Pro to view full violation history, enforcement actions, and resolution status.
Upgrade to Pro