Billerica Water Works
PWSID MA3031000 · Billerica, Massachusetts · serves 42,119 people · surface water source
F
Failing
PFAS test results (EPA UCMR 5)
| Contaminant | Result | Federal limit (MCL) | Sampled |
|---|---|---|---|
| PFPeA | 8 ppt | — | 8/7/2025 |
| PFPeA | 7.4 ppt | — | 11/7/2024 |
| PFHxA | 6.1 ppt | — | 8/7/2025 |
| PFHxA | 6 ppt | — | 11/7/2024 |
| PFOA | 5.5 ppt | 4 ppt | 8/7/2025 |
| PFBA | 5.5 ppt | — | 8/7/2025 |
| PFBA | 5.4 ppt | — | 11/7/2024 |
| PFOA | 4.2 ppt | 4 ppt | 11/7/2024 |
| PFPeA | 4 ppt | — | 2/5/2025 |
| PFHxA | 4 ppt | — | 2/5/2025 |
| PFBS | 3.1 ppt | — | 8/7/2025 |
| PFBS | 3 ppt | — | 11/7/2024 |
ppt = parts per trillion (ng/L). Rows highlighted red meet or exceed the 2024 federal limit.
Violation history
| Date | Violation | Type | Health-based | Status |
|---|---|---|---|---|
| 2023-04-01 | Bromate | MCL | Yes | Resolved |
| 2023-01-01 | Bromate | MCL | Yes | Resolved |
| 2022-10-01 | Bromate | MCL | Yes | Resolved |