Oregon County, Missouri
6 active water systems in this county.
| Water System | Population Served | Source | Violations | Health-Based |
|---|---|---|---|---|
| Oregon County Pwsd 2 | 120 | Groundwater | 13 | 1 |
| Usfs Greer Crossing | 50 | Groundwater | 7 | 1 |
| Oregon County Pwsd 1 | 900 | Groundwater | 53 | 0 |
| Thayer Pws | 2,200 | Groundwater | 11 | 0 |
| Koshkonong Pws | 212 | Groundwater | 9 | 0 |
| Alton Pws | 1,000 | Groundwater | 3 | 0 |