Nyack Village Water Supply
PWSID NY4303666 · Nyack, New York · serves 14,700 people · surface water source
D
Poor
PFAS test results (EPA UCMR 5)
| Contaminant | Result | Federal limit (MCL) | Sampled |
|---|---|---|---|
| PFOA | 9.8 ppt | 4 ppt | 9/8/2025 |
| PFOA | 9.2 ppt | 4 ppt | 12/30/2025 |
| PFOA | 8.1 ppt | 4 ppt | 3/26/2025 |
| PFOA | 7.9 ppt | 4 ppt | 6/23/2025 |
| PFOS | 5.6 ppt | 4 ppt | 12/30/2025 |
| PFOS | 5.2 ppt | 4 ppt | 9/8/2025 |
| PFPeA | 5.2 ppt | — | 9/8/2025 |
| PFBA | 5.1 ppt | — | 9/8/2025 |
| PFBA | 5 ppt | — | 6/23/2025 |
| PFHxA | 4.7 ppt | — | 9/8/2025 |
| PFPeA | 4.7 ppt | — | 12/30/2025 |
| PFOS | 4.6 ppt | 4 ppt | 6/23/2025 |
| PFOS | 4.2 ppt | 4 ppt | 3/26/2025 |
| PFPeA | 4.2 ppt | — | 3/26/2025 |
| PFHxA | 4.1 ppt | — | 12/30/2025 |
| PFHxA | 3.9 ppt | — | 3/26/2025 |
| PFPeA | 3.9 ppt | — | 6/23/2025 |
| PFHxA | 3.7 ppt | — | 6/23/2025 |
| PFHxS | 3.6 ppt | 10 ppt | 12/30/2025 |
| PFBS | 3.3 ppt | — | 9/8/2025 |
| PFHpA | 3.2 ppt | — | 9/8/2025 |
| PFBS | 3 ppt | — | 12/30/2025 |
ppt = parts per trillion (ng/L). Rows highlighted red meet or exceed the 2024 federal limit.
Violation history
| Date | Violation | Type | Health-based | Status |
|---|---|---|---|---|
| 2022-10-01 | TTHM | MR | No | Resolved |
| 2022-07-01 | TTHM | MR | No | Resolved |
| 2022-07-01 | Public Notice | Other | No | Resolved |