Sanborn County, South Dakota
5 active water systems in this county.
| Water System | Population Served | Source | Violations | Health-Based |
|---|---|---|---|---|
| Old Whites Drive in | 37 | Groundwater | 25 | 3 |
| Letcher | 159 | Surface Water Purchased | 11 | 3 |
| Woonsocket | 618 | Groundwater | 5 | 3 |
| Sanborn Central School District | 125 | Groundwater | 182 | 0 |
| Upland Colony | 198 | Groundwater | 18 | 0 |