Weir River Water System
PWSID MA4131000 · Hingham, Massachusetts · serves 45,339 people · surface water source
C
Fair
PFAS test results (EPA UCMR 5)
| Contaminant | Result | Federal limit (MCL) | Sampled |
|---|---|---|---|
| PFOA | 6.4 ppt | 4 ppt | 8/18/2025 |
| PFHxA | 6 ppt | — | 11/6/2024 |
| PFOA | 5.7 ppt | 4 ppt | 11/6/2024 |
| PFBA | 5.7 ppt | — | 8/18/2025 |
| PFOA | 5.6 ppt | 4 ppt | 8/18/2025 |
| PFOA | 5 ppt | 4 ppt | 5/21/2025 |
| PFOA | 4.3 ppt | 4 ppt | 11/6/2024 |
| PFHxA | 4.3 ppt | — | 8/18/2025 |
| PFPeA | 4.3 ppt | — | 8/18/2025 |
| PFPeA | 3.8 ppt | — | 11/6/2024 |
| PFHxA | 3.8 ppt | — | 5/21/2025 |
| PFPeA | 3.5 ppt | — | 5/21/2025 |
| PFBS | 3.3 ppt | — | 5/21/2025 |
| PFPeA | 3.2 ppt | — | 8/18/2025 |
| PFHxA | 3.1 ppt | — | 11/6/2024 |
| PFPeA | 3.1 ppt | — | 11/6/2024 |
| PFHxA | 3 ppt | — | 8/18/2025 |
ppt = parts per trillion (ng/L). Rows highlighted red meet or exceed the 2024 federal limit.
Violation history
No violations on record in the period covered. 🎉