Mountain Home Air Force Base
PWSID ID4200054 · Mountain Home Afb, Idaho · serves 7,500 people · groundwater source
F
Failing
PFAS test results (EPA UCMR 5)
| Contaminant | Result | Federal limit (MCL) | Sampled |
|---|---|---|---|
| PFHxA | 13 ppt | — | 10/25/2023 |
| PFHxS | 10 ppt | 10 ppt | 10/25/2023 |
| PFPeA | 6.7 ppt | — | 10/25/2023 |
| PFHxA | 6.3 ppt | — | 4/18/2023 |
| PFHxS | 6.2 ppt | 10 ppt | 4/18/2023 |
| PFHxS | 6.1 ppt | 10 ppt | 4/18/2023 |
| PFHxA | 6.1 ppt | — | 4/18/2023 |
| PFBS | 4.8 ppt | — | 10/25/2023 |
| PFPeA | 4.2 ppt | — | 4/18/2023 |
| PFPeA | 4 ppt | — | 4/18/2023 |
ppt = parts per trillion (ng/L). Rows highlighted red meet or exceed the 2024 federal limit.
Violation history
| Date | Violation | Type | Health-based | Status |
|---|---|---|---|---|
| 2025-12-30 | Lead and Copper Rule | MR | No | Resolved |
| 2024-08-01 | Revised Total Coliform Rule | MON | No | Resolved |
| 2024-08-01 | Chlorine | MR | No | Resolved |
| 2022-03-01 | Revised Total Coliform Rule | MON | No | Resolved |
| 2022-01-01 | Chlorine | MR | No | Resolved |
| 2021-11-11 | E. COLI | MR | No | Resolved |