Hampstead Area Water
PWSID NH1031010 · Atkinson, New Hampshire · serves 7,153 people · surface water source
D
Poor
PFAS test results (EPA UCMR 5)
| Contaminant | Result | Federal limit (MCL) | Sampled |
|---|---|---|---|
| PFOS | 7.5 ppt | 4 ppt | 8/14/2024 |
| PFBS | 7.2 ppt | — | 8/14/2024 |
| PFOA | 7.2 ppt | 4 ppt | 2/13/2024 |
| PFOA | 6.5 ppt | 4 ppt | 8/13/2024 |
| PFOA | 6.4 ppt | 4 ppt | 2/13/2024 |
| PFOA | 5.9 ppt | 4 ppt | 8/14/2024 |
| PFOA | 5.8 ppt | 4 ppt | 2/12/2024 |
| PFBS | 5.6 ppt | — | 2/13/2024 |
| PFOA | 5.3 ppt | 4 ppt | 8/14/2024 |
| PFHxA | 5.1 ppt | — | 2/13/2024 |
| PFOA | 5.1 ppt | 4 ppt | 2/13/2024 |
| PFBS | 5 ppt | — | 8/14/2024 |
| PFPeA | 5 ppt | — | 2/13/2024 |
| PFOA | 4.8 ppt | 4 ppt | 8/13/2024 |
| PFOA | 4.7 ppt | 4 ppt | 2/13/2024 |
| PFPeA | 4.6 ppt | — | 8/13/2024 |
| PFHxA | 4.6 ppt | — | 8/13/2024 |
| PFOA | 4.5 ppt | 4 ppt | 2/13/2024 |
| PFOA | 4.4 ppt | 4 ppt | 8/13/2024 |
| PFHxA | 4.1 ppt | — | 8/13/2024 |
| PFOA | 4 ppt | 4 ppt | 8/14/2024 |
| PFBS | 3.7 ppt | — | 2/13/2024 |
| PFPeA | 3.7 ppt | — | 8/13/2024 |
| PFHxA | 3.6 ppt | — | 2/13/2024 |
| PFHxA | 3.6 ppt | — | 2/12/2024 |
| PFPeA | 3.5 ppt | — | 2/13/2024 |
| PFBS | 3.4 ppt | — | 2/13/2024 |
| PFPeA | 3.3 ppt | — | 2/12/2024 |
| PFHxA | 3.2 ppt | — | 8/14/2024 |
| PFHxA | 3.2 ppt | — | 8/13/2024 |
| PFHxA | 3.1 ppt | — | 2/13/2024 |
| PFBS | 3.1 ppt | — | 2/13/2024 |
| PFBS | 3 ppt | — | 8/13/2024 |
ppt = parts per trillion (ng/L). Rows highlighted red meet or exceed the 2024 federal limit.
Violation history
| Date | Violation | Type | Health-based | Status |
|---|---|---|---|---|
| 2023-01-01 | Arsenic | MR | No | Resolved |