Oswego
PWSID IL0930150 · Oswego, Illinois · serves 38,169 people · groundwater source
A
Excellent
Violation history
| Date | Violation | Type | Health-based | Status |
|---|---|---|---|---|
| 2024-09-01 | Chlorine | MR | No | Resolved |
| 2022-07-01 | Consumer Confidence Rule | Other | No | Resolved |