Stephenson County, Illinois
10 active water systems in this county.
| Water System | Population Served | Source | Violations | Health-Based |
|---|---|---|---|---|
| Winslow | 350 | Groundwater | 22 | 2 |
| German Valley | 463 | Groundwater | 8 | 2 |
| Cedarville | 663 | Groundwater | 7 | 2 |
| Pearl City | 790 | Groundwater | 244 | 0 |
| Rock City | 313 | Groundwater | 6 | 0 |
| Freeport | 23,930 | Groundwater | 1 | 0 |
| Lena | 2,680 | Groundwater | 1 | 0 |
| Davis | 589 | Groundwater | 1 | 0 |
| Dakota | 500 | Groundwater | 1 | 0 |
| Orangeville | 780 | Groundwater | 0 | 0 |