Canton Water Dept
PWSID MA4050000 · Canton, Massachusetts · serves 22,766 people · surface water source
D
Poor
PFAS test results (EPA UCMR 5)
| Contaminant | Result | Federal limit (MCL) | Sampled |
|---|---|---|---|
| PFOA | 5 ppt | 4 ppt | 1/8/2024 |
| PFOA | 4.9 ppt | 4 ppt | 7/9/2024 |
| PFOA | 4.5 ppt | 4 ppt | 1/8/2024 |
| PFPeA | 3.4 ppt | — | 1/8/2024 |
| PFHxA | 3.2 ppt | — | 1/8/2024 |
| 4:2 FTS | 3 ppt | — | 1/8/2024 |
ppt = parts per trillion (ng/L). Rows highlighted red meet or exceed the 2024 federal limit.
Violation history
| Date | Violation | Type | Health-based | Status |
|---|---|---|---|---|
| 2025-04-01 | Total Haloacetic Acids (HAA5) | MR | No | Archived |
| 2024-07-01 | Lead and Copper Rule | MR | No | Addressed |