Rainbow Water District
PWSID OR4100839 · Springfield, Oregon · serves 6,300 people · surface water source
F
Failing
PFAS test results (EPA UCMR 5)
| Contaminant | Result | Federal limit (MCL) | Sampled |
|---|---|---|---|
| PFOS | 9.4 ppt | 4 ppt | 1/13/2025 |
| PFOS | 8.1 ppt | 4 ppt | 4/14/2025 |
| PFOS | 7.2 ppt | 4 ppt | 10/15/2025 |
| PFOS | 6.3 ppt | 4 ppt | 7/15/2025 |
| PFOA | 4.2 ppt | 4 ppt | 4/14/2025 |
| PFOA | 4.1 ppt | 4 ppt | 1/13/2025 |
| PFBS | 3.8 ppt | — | 1/13/2025 |
ppt = parts per trillion (ng/L). Rows highlighted red meet or exceed the 2024 federal limit.
Violation history
| Date | Violation | Type | Health-based | Status |
|---|---|---|---|---|
| 2025-08-01 | Revised Total Coliform Rule | MON | No | Resolved |
| 2025-02-01 | Surface Water Treatment Rule | MR | No | Resolved |
| 2025-02-01 | Surface Water Treatment Rule | MR | No | Resolved |
| 2025-02-01 | Surface Water Treatment Rule | MR | No | Resolved |
| 2022-09-13 | Surface Water Treatment Rule | TT | Yes | Resolved |