Commonwealth Utilities Corp (Saipan)
PWSID MP0000001 · Saipan, Northern Mariana Islands · serves 48,524 people · groundwater source
F
Failing
PFAS test results (EPA UCMR 5)
| Contaminant | Result | Federal limit (MCL) | Sampled |
|---|---|---|---|
| PFPeA | 133.8 ppt | — | 3/15/2024 |
| PFHxA | 121.6 ppt | — | 3/15/2024 |
| PFBA | 32.3 ppt | — | 3/15/2024 |
| PFOS | 32.1 ppt | 4 ppt | 3/15/2024 |
| PFOS | 24.1 ppt | 4 ppt | 3/15/2024 |
| PFHpA | 22.9 ppt | — | 3/15/2024 |
| PFHxS | 19.6 ppt | 10 ppt | 3/15/2024 |
| PFHxS | 18.8 ppt | 10 ppt | 3/15/2024 |
| PFOS | 15.4 ppt | 4 ppt | 3/15/2024 |
| PFBS | 14.6 ppt | — | 3/15/2024 |
| PFHxS | 13.3 ppt | 10 ppt | 3/15/2024 |
| PFPeA | 12.6 ppt | — | 3/15/2024 |
| 6:2 FTS | 12.5 ppt | — | 3/15/2024 |
| PFHxA | 12.2 ppt | — | 3/15/2024 |
| PFPeA | 10.5 ppt | — | 10/18/2023 |
| PFPeA | 10.1 ppt | — | 3/15/2024 |
| 6:2 FTS | 9.7 ppt | — | 3/15/2024 |
| PFHxA | 8.2 ppt | — | 3/15/2024 |
| PFHxA | 7.3 ppt | — | 3/15/2024 |
| PFPeA | 7 ppt | — | 3/15/2024 |
| PFOS | 5.9 ppt | 4 ppt | 3/15/2024 |
| PFOS | 5.4 ppt | 4 ppt | 3/8/2024 |
| PFPeS | 5.4 ppt | — | 3/15/2024 |
| PFHxS | 5.1 ppt | 10 ppt | 3/15/2024 |
| PFHpA | 5.1 ppt | — | 3/15/2024 |
| PFHpA | 5 ppt | — | 3/15/2024 |
| PFOS | 4.2 ppt | 4 ppt | 1/16/2024 |
| PFOS | 4 ppt | 4 ppt | 9/9/2024 |
| PFHpA | 3.9 ppt | — | 3/15/2024 |
| PFBS | 3.6 ppt | — | 3/15/2024 |
| PFBS | 3.6 ppt | — | 3/15/2024 |
| PFHxA | 3.3 ppt | — | 10/18/2023 |
| PFBS | 3.3 ppt | — | 3/15/2024 |
| PFPeA | 3.2 ppt | — | 9/9/2024 |
ppt = parts per trillion (ng/L). Rows highlighted red meet or exceed the 2024 federal limit.
Violation history
| Date | Violation | Type | Health-based | Status |
|---|---|---|---|---|
| 2023-11-01 | Revised Total Coliform Rule | MCL | Yes | Resolved |
| 2023-10-01 | Revised Total Coliform Rule | TT | Yes | Resolved |
| 2021-12-01 | Groundwater Rule | TT | Yes | Resolved |