Ambler Boro Water Dept
PWSID PA1460020 · Ambler, Pennsylvania · serves 20,000 people · surface water source
F
Failing
PFAS test results (EPA UCMR 5)
| Contaminant | Result | Federal limit (MCL) | Sampled |
|---|---|---|---|
| PFOA | 15.3 ppt | 4 ppt | 2/3/2025 |
| PFOA | 14.2 ppt | 4 ppt | 8/19/2024 |
| PFPeA | 14 ppt | — | 8/19/2024 |
| PFOS | 13.7 ppt | 4 ppt | 8/19/2024 |
| PFNA | 13.5 ppt | 10 ppt | 8/19/2024 |
| PFOA | 13.5 ppt | 4 ppt | 2/3/2025 |
| PFOS | 13.5 ppt | 4 ppt | 8/19/2024 |
| PFOA | 12.9 ppt | 4 ppt | 8/19/2024 |
| PFOS | 12.4 ppt | 4 ppt | 8/19/2024 |
| PFPeA | 12.3 ppt | — | 2/3/2025 |
| PFHxA | 12.2 ppt | — | 8/19/2024 |
| PFOA | 12.2 ppt | 4 ppt | 2/3/2025 |
| PFOS | 11.6 ppt | 4 ppt | 2/3/2025 |
| PFOS | 11.4 ppt | 4 ppt | 2/3/2025 |
| PFOA | 11.1 ppt | 4 ppt | 2/3/2025 |
| PFPeA | 11 ppt | — | 2/3/2025 |
| PFOS | 11 ppt | 4 ppt | 2/3/2025 |
| PFOS | 10.6 ppt | 4 ppt | 8/19/2024 |
| PFOA | 10.6 ppt | 4 ppt | 2/3/2025 |
| PFBA | 10.6 ppt | — | 11/6/2024 |
| PFOA | 10.5 ppt | 4 ppt | 2/3/2025 |
| PFOA | 10.5 ppt | 4 ppt | 8/19/2024 |
| PFOA | 10.4 ppt | 4 ppt | 8/19/2024 |
| PFPeA | 10.4 ppt | — | 11/6/2024 |
| PFOA | 10.2 ppt | 4 ppt | 8/19/2024 |
| PFOA | 10 ppt | 4 ppt | 8/19/2024 |
| PFNA | 9.9 ppt | 10 ppt | 2/3/2025 |
| PFHxA | 9.9 ppt | — | 2/3/2025 |
| PFPeA | 9.9 ppt | — | 2/3/2025 |
| PFOS | 9.8 ppt | 4 ppt | 8/19/2024 |
| PFHxA | 9.5 ppt | — | 8/19/2024 |
| PFOS | 9.5 ppt | 4 ppt | 8/19/2024 |
| PFBS | 9.2 ppt | — | 2/3/2025 |
| PFBS | 9.2 ppt | — | 8/19/2024 |
| PFHxA | 9.2 ppt | — | 2/3/2025 |
| PFHpA | 9 ppt | — | 8/19/2024 |
| PFBS | 9 ppt | — | 2/3/2025 |
| PFOA | 9 ppt | 4 ppt | 8/19/2024 |
| PFOS | 8.9 ppt | 4 ppt | 2/3/2025 |
| PFOA | 8.7 ppt | 4 ppt | 8/19/2024 |
| PFOS | 8.6 ppt | 4 ppt | 8/19/2024 |
| PFOS | 8.5 ppt | 4 ppt | 2/3/2025 |
| PFBS | 8.5 ppt | — | 2/3/2025 |
| PFOA | 8.5 ppt | 4 ppt | 2/3/2025 |
| PFOS | 8.3 ppt | 4 ppt | 2/3/2025 |
| PFBS | 8.2 ppt | — | 8/19/2024 |
| PFOA | 8.2 ppt | 4 ppt | 2/3/2025 |
| PFBA | 8.1 ppt | — | 2/3/2025 |
| PFBA | 8.1 ppt | — | 2/3/2025 |
| PFBS | 8.1 ppt | — | 8/19/2024 |
ppt = parts per trillion (ng/L). Rows highlighted red meet or exceed the 2024 federal limit.
Violation history
| Date | Violation | Type | Health-based | Status |
|---|---|---|---|---|
| 2026-02-01 | Groundwater Rule | MR | No | Resolved |
| 2025-05-01 | Groundwater Rule | MR | No | Resolved |
| 2024-01-01 | Groundwater Rule | MR | No | Resolved |
| 2023-11-01 | Surface Water Treatment Rule | MR | No | Resolved |
| 2023-11-01 | Groundwater Rule | MR | No | Resolved |
| 2023-05-01 | Interim Enhanced Surface Water Treatment Rule | MR | No | Resolved |
| 2022-12-01 | Interim Enhanced Surface Water Treatment Rule | MR | No | Resolved |
| 2022-11-01 | Groundwater Rule | MR | No | Resolved |
| 2022-09-01 | Groundwater Rule | MR | No | Resolved |