Langley Air Force Base
PWSID VA3650350 · Langley Afb, Virginia · serves 10,886 people · surface water source
D
Poor
PFAS test results (EPA UCMR 5)
| Contaminant | Result | Federal limit (MCL) | Sampled |
|---|---|---|---|
| PFOS | 5.6 ppt | 4 ppt | 6/5/2023 |
| PFHxA | 4.8 ppt | — | 6/5/2023 |
| PFPeA | 4.5 ppt | — | 6/5/2023 |
| PFHxS | 4.1 ppt | 10 ppt | 6/5/2023 |
| PFHxS | 3.6 ppt | 10 ppt | 3/21/2023 |
| PFPeA | 3.1 ppt | — | 1/17/2024 |
| PFHxA | 3 ppt | — | 1/17/2024 |
ppt = parts per trillion (ng/L). Rows highlighted red meet or exceed the 2024 federal limit.
Violation history
| Date | Violation | Type | Health-based | Status |
|---|---|---|---|---|
| 2025-12-01 | Revised Total Coliform Rule | RPT | No | Resolved |
| 2025-07-01 | Consumer Confidence Rule | Other | No | Resolved |
| 2023-02-01 | Revised Total Coliform Rule | MON | No | Resolved |