Ogle County, Illinois
12 active water systems in this county.
| Water System | Population Served | Source | Violations | Health-Based |
|---|---|---|---|---|
| Rochelle | 9,446 | Groundwater | 27 | 16 |
| Hillcrest | 1,224 | Groundwater | 182 | 3 |
| Oregon | 3,449 | Groundwater | 19 | 1 |
| Polo | 2,355 | Groundwater | 10 | 1 |
| Byron | 4,743 | Groundwater | 246 | 0 |
| Creston | 627 | Groundwater | 9 | 0 |
| Leaf River | 403 | Groundwater | 5 | 0 |
| Rolling Meadows-foxglove | 70 | Groundwater Purchased | 2 | 0 |
| Mount Morris | 2,861 | Groundwater | 1 | 0 |
| Davis Junction | 2,344 | Groundwater | 0 | 0 |
| Forreston | 1,338 | Groundwater | 0 | 0 |
| Stillman Valley | 1,200 | Groundwater | 0 | 0 |