Natick Water And Sewer Division
PWSID MA3198000 · Natick, Massachusetts · serves 37,006 people · groundwater source
C
Fair
PFAS test results (EPA UCMR 5)
| Contaminant | Result | Federal limit (MCL) | Sampled |
|---|---|---|---|
| PFOS | 37.3 ppt | 4 ppt | 12/16/2024 |
| PFOS | 27.1 ppt | 4 ppt | 6/11/2025 |
| PFOA | 14.3 ppt | 4 ppt | 12/16/2024 |
| PFHxS | 11.2 ppt | 10 ppt | 12/16/2024 |
| PFOA | 9.7 ppt | 4 ppt | 6/11/2025 |
| PFBS | 6.5 ppt | — | 12/16/2024 |
| PFBA | 5 ppt | — | 12/16/2024 |
| PFOA | 4.2 ppt | 4 ppt | 6/11/2025 |
| PFHxS | 4 ppt | 10 ppt | 6/11/2025 |
| PFOA | 4 ppt | 4 ppt | 12/16/2024 |
| PFOS | 4 ppt | 4 ppt | 6/11/2025 |
| PFOS | 4 ppt | 4 ppt | 12/16/2024 |
| PFBS | 3.6 ppt | — | 6/11/2025 |
| PFPeA | 3.5 ppt | — | 12/16/2024 |
| PFPeA | 3.3 ppt | — | 12/16/2024 |
| PFBS | 3 ppt | — | 6/11/2025 |
| PFBS | 3 ppt | — | 6/11/2025 |
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. 🎉