PWSID: MA2139000 · HOPKINTON, MA · Serving 12,680 people
One or more PFAS compounds exceed EPA Maximum Contaminant Levels. This is not a current violation — the federal compliance deadline is April 2029 (a proposed extension to 2031 is not final). Detections above the MCL do define eligibility for open PFAS settlement funds.
Source: EPA UCMR5 (UCMR5) · 203 compounds tested
| Contaminant | Result (ppt) | MCL (ppt) | Status | Sample date |
|---|---|---|---|---|
| 8:2 FTS | ND | — | Below MRL | 2025-08-18 |
| PFPeS | ND | — | Below MRL | 2025-02-11 |
| NFDHA | ND | — | Below MRL | 2025-02-11 |
| PFEESA | ND | — | Below MRL | 2025-02-11 |
| PFMBA | ND | — | Below MRL | 2025-02-11 |
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