Ontario Municipal Utilities Company
PWSID CA3610034 · Ontario, California · serves 185,010 people · surface water source
C
Fair
PFAS test results (EPA UCMR 5)
| Contaminant | Result | Federal limit (MCL) | Sampled |
|---|---|---|---|
| PFOA | 30 ppt | 4 ppt | 2/28/2023 |
| PFHxA | 7.1 ppt | — | 2/15/2023 |
| PFPeA | 6.7 ppt | — | 2/15/2023 |
| PFBA | 6.4 ppt | — | 2/15/2023 |
| PFBA | 6.2 ppt | — | 2/9/2023 |
| PFOS | 5.2 ppt | 4 ppt | 2/15/2023 |
| PFPeA | 4.8 ppt | — | 8/9/2023 |
| PFHxS | 4.2 ppt | 10 ppt | 2/15/2023 |
ppt = parts per trillion (ng/L). Rows highlighted red meet or exceed the 2024 federal limit.
Violation history
No violations on record in the period covered. 🎉