Clark County, Illinois
4 active water systems in this county.
| Water System | Population Served | Source | Violations | Health-Based |
|---|---|---|---|---|
| Casey | 3,274 | Groundwater Purchased | 26 | 8 |
| Westfield | 678 | Groundwater Purchased | 51 | 4 |
| Marshall | 3,947 | Groundwater | 10 | 0 |
| Martinsville | 1,200 | Groundwater Purchased | 4 | 0 |