Running Springs Water District
PWSID CA3610062 · Running Springs, California · serves 5,268 people · surface water source
F
Failing
PFAS test results (EPA UCMR 5)
| Contaminant | Result | Federal limit (MCL) | Sampled |
|---|---|---|---|
| PFOS | 236.5 ppt | 4 ppt | 7/29/2025 |
| PFHxS | 95.5 ppt | 10 ppt | 7/29/2025 |
| PFHxS | 41.6 ppt | 10 ppt | 1/7/2025 |
| PFOS | 25.5 ppt | 4 ppt | 1/7/2025 |
| PFHxA | 19 ppt | — | 7/29/2025 |
| PFOA | 15.9 ppt | 4 ppt | 7/29/2025 |
| PFPeA | 14.4 ppt | — | 7/29/2025 |
| PFHpA | 12.8 ppt | — | 7/29/2025 |
| PFOS | 12.7 ppt | 4 ppt | 7/15/2025 |
| PFBS | 11.7 ppt | — | 7/29/2025 |
| PFOS | 11.7 ppt | 4 ppt | 1/7/2025 |
| PFPeS | 10.8 ppt | — | 7/29/2025 |
| PFOA | 9 ppt | 4 ppt | 7/29/2025 |
| PFOA | 8.3 ppt | 4 ppt | 1/6/2025 |
| PFHxA | 8 ppt | — | 1/7/2025 |
| PFOA | 7.5 ppt | 4 ppt | 1/7/2025 |
| PFHxS | 6.6 ppt | 10 ppt | 1/7/2025 |
| PFPeA | 6.5 ppt | — | 1/7/2025 |
| PFHxS | 6.4 ppt | 10 ppt | 7/15/2025 |
| PFHpA | 6.1 ppt | — | 1/7/2025 |
| PFPeA | 5.9 ppt | — | 7/29/2025 |
| PFPeA | 5.9 ppt | — | 7/29/2025 |
| PFBA | 5.6 ppt | — | 7/29/2025 |
| PFPeA | 5.5 ppt | — | 1/7/2025 |
| PFHpS | 5.5 ppt | — | 7/29/2025 |
| PFBS | 5.4 ppt | — | 1/7/2025 |
| PFPeA | 5.2 ppt | — | 1/6/2025 |
| PFHxA | 5 ppt | — | 7/29/2025 |
| PFPeS | 4.8 ppt | — | 1/7/2025 |
| PFOS | 4.8 ppt | 4 ppt | 1/6/2025 |
| PFOS | 4.6 ppt | 4 ppt | 7/29/2025 |
| PFHxA | 4.5 ppt | — | 7/29/2025 |
| PFPeA | 4.4 ppt | — | 3/17/2026 |
| PFBS | 4.3 ppt | — | 7/29/2025 |
| PFHxS | 4.2 ppt | 10 ppt | 7/29/2025 |
| PFHpA | 4.2 ppt | — | 7/29/2025 |
| PFHxA | 4 ppt | — | 1/7/2025 |
| PFHxS | 3.9 ppt | 10 ppt | 1/7/2025 |
| PFPeA | 3.9 ppt | — | 1/7/2025 |
| PFHxS | 3.9 ppt | 10 ppt | 7/29/2025 |
| PFHxA | 3.8 ppt | — | 1/6/2025 |
| PFBS | 3.7 ppt | — | 1/6/2025 |
| PFHpA | 3.5 ppt | — | 1/6/2025 |
| PFHxS | 3.2 ppt | 10 ppt | 1/6/2025 |
| PFHxA | 3.1 ppt | — | 1/7/2025 |
| PFHxA | 3 ppt | — | 3/17/2026 |
ppt = parts per trillion (ng/L). Rows highlighted red meet or exceed the 2024 federal limit.
Violation history
| Date | Violation | Type | Health-based | Status |
|---|---|---|---|---|
| 2024-01-01 | Total Haloacetic Acids (HAA5) | MR | No | Resolved |
| 2024-01-01 | TTHM | MR | No | Resolved |
| 2023-10-01 | Total Haloacetic Acids (HAA5) | MR | No | Resolved |
| 2023-10-01 | TTHM | MR | No | Resolved |