Columbia
PWSID IL1330050 · Columbia, Illinois · serves 11,129 people · surface water source
B
Good
PFAS test results (EPA UCMR 5)
| Contaminant | Result | Federal limit (MCL) | Sampled |
|---|---|---|---|
| PFBA | 11.5 ppt | — | 10/22/2024 |
| PFBA | 10.2 ppt | — | 12/10/2024 |
| PFBA | 9.8 ppt | — | 3/11/2025 |
| PFBA | 6.8 ppt | — | 6/9/2025 |
| PFBS | 3.4 ppt | — | 12/10/2024 |
ppt = parts per trillion (ng/L). Rows highlighted red meet or exceed the 2024 federal limit.
Violation history
| Date | Violation | Type | Health-based | Status |
|---|---|---|---|---|
| 2025-07-01 | Consumer Confidence Rule | Other | No | Resolved |
| 2025-07-01 | Consumer Confidence Rule | Other | No | Unaddressed |