CENTERVILLE OSTERVILLE MARSTONS MILLS WD
PWSID: MA4020002 · OSTERVILLE, MA · Serving 50,000 people
Type: CWSOwner: LSource: GW
Settlement eligible
Settlement details
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Upgrade to ProExceeds MCL
One or more PFAS compounds exceed EPA Maximum Contaminant Levels. Corrective action required by 2031.
Key contaminants vs MCL
EPA MCL: 4 ppt (parts per trillion) for PFOA and PFOS individually. Compliance deadline: 2031-12-31
Exact contamination levels
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Upgrade to ProDetection summary
7.5 ppt
Highest single detection
2025-08-25
Latest sample date
complete
Data completeness
All PFAS detection results
Source: EPA UCMR5 (UCMR5) · 870 compounds tested
| Contaminant | Result (ppt) | MCL (ppt) | Status | Sample date |
|---|
| 4:2 FTS | ND | — | Below MRL | 2025-08-11 |
| NMeFOSAA | ND | — | Below MRL | 2025-08-11 |
| PFHpS | ND | — | Below MRL | 2025-08-11 |
| ADONA | ND | — | Below MRL | 2025-08-11 |
| PFBS | ND | — | Below MRL | 2025-08-11 |
Violation history(7 violations, 7 open)
Monitoring & Reporting - PFOA(PFOA)
2024-04-01 · Open · Tier 3
Monitoring & Reporting - PFOS(PFOS)
2024-04-01 · Open · Tier 3
Monitoring & Reporting - HFPO-DA (GenX)(HFPO-DA (GenX))
2024-04-01 · Open · Tier 3
Monitoring & Reporting - PFHxS(PFHxS)
2024-04-01 · Open · Tier 3
Monitoring & Reporting - PFNA(PFNA)
2024-04-01 · Open · Tier 3
Monitoring & Reporting - PFBS(PFBS)
2024-04-01 · Open · Tier 3
Violation details
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