Washington County, Missouri
6 active water systems in this county.
| Water System | Population Served | Source | Violations | Health-Based |
|---|---|---|---|---|
| Potosi Pws | 2,527 | Groundwater | 37 | 26 |
| Mineral Point Pws | 231 | Groundwater | 23 | 5 |
| Irondale Pws | 420 | Groundwater | 21 | 0 |
| Caledonia Pws | 130 | Groundwater | 15 | 0 |
| Roys Number One | 100 | Groundwater | 7 | 0 |
| Potosi R Iii Schools Ballfield Complex | 25 | Groundwater | 0 | 0 |