City Of Santa Ana
PWSID CA3010038 · Santa Ana, California · serves 316,184 people · surface water source
C
Fair
PFAS test results (EPA UCMR 5)
| Contaminant | Result | Federal limit (MCL) | Sampled |
|---|---|---|---|
| PFOS | 14.2 ppt | 4 ppt | 2/11/2025 |
| PFOS | 12.9 ppt | 4 ppt | 8/15/2024 |
| PFOS | 12.6 ppt | 4 ppt | 2/11/2025 |
| PFOS | 10.9 ppt | 4 ppt | 8/15/2024 |
| PFOS | 9.6 ppt | 4 ppt | 2/11/2025 |
| PFOA | 8.9 ppt | 4 ppt | 2/11/2025 |
| PFHxS | 8.4 ppt | 10 ppt | 2/11/2025 |
| PFOS | 8 ppt | 4 ppt | 9/24/2024 |
| PFOA | 7.5 ppt | 4 ppt | 8/15/2024 |
| PFHxS | 7.4 ppt | 10 ppt | 2/11/2025 |
| PFOA | 7.3 ppt | 4 ppt | 8/15/2024 |
| PFHxS | 7.3 ppt | 10 ppt | 8/15/2024 |
| PFOA | 7.2 ppt | 4 ppt | 2/11/2025 |
| PFHxS | 6.4 ppt | 10 ppt | 8/15/2024 |
| PFPeA | 5.9 ppt | — | 2/11/2025 |
| PFOA | 5.8 ppt | 4 ppt | 2/11/2025 |
| PFOA | 5.7 ppt | 4 ppt | 2/11/2025 |
| PFHxS | 5.7 ppt | 10 ppt | 2/11/2025 |
| PFHxS | 5 ppt | 10 ppt | 9/24/2024 |
| PFOA | 4.7 ppt | 4 ppt | 9/24/2024 |
| PFOS | 4.6 ppt | 4 ppt | 2/11/2025 |
| PFHxS | 4.2 ppt | 10 ppt | 2/11/2025 |
| PFOA | 4.1 ppt | 4 ppt | 8/15/2024 |
| PFHxA | 4 ppt | — | 2/11/2025 |
| PFPeA | 3.7 ppt | — | 8/15/2024 |
| PFPeA | 3.6 ppt | — | 2/11/2025 |
| PFHxA | 3.5 ppt | — | 8/15/2024 |
| PFHxA | 3.5 ppt | — | 2/11/2025 |
| PFHxA | 3.4 ppt | — | 8/15/2024 |
| PFPeA | 3.4 ppt | — | 8/15/2024 |
| PFHxS | 3.3 ppt | 10 ppt | 8/15/2024 |
| PFPeA | 3.3 ppt | — | 2/11/2025 |
| PFHxS | 3 ppt | 10 ppt | 2/11/2025 |
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. 🎉