Clark Public Utilities
PWSID WA5313333 · Vancouver, Washington · serves 153,526 people · groundwater source
D
Poor
PFAS test results (EPA UCMR 5)
| Contaminant | Result | Federal limit (MCL) | Sampled |
|---|---|---|---|
| PFOS | 8.4 ppt | 4 ppt | 3/28/2023 |
| PFOA | 8 ppt | 4 ppt | 3/28/2023 |
| PFHxS | 5.3 ppt | 10 ppt | 3/28/2023 |
| PFBS | 4.1 ppt | — | 3/28/2023 |
| PFHxA | 3.3 ppt | — | 3/28/2023 |
ppt = parts per trillion (ng/L). Rows highlighted red meet or exceed the 2024 federal limit.
Violation history
| Date | Violation | Type | Health-based | Status |
|---|---|---|---|---|
| 2022-01-01 | Nitrate | MR | No | Resolved |