St. Clair County, Michigan
7 active water systems in this county.
| Water System | Population Served | Source | Violations | Health-Based |
|---|---|---|---|---|
| Yale, City of | 1,900 | Groundwater | 14 | 1 |
| Marine City | 4,652 | Surface Water | 4 | 1 |
| Capac, Village of | 1,775 | Groundwater | 55 | 0 |
| Memphis, City of | 1,084 | Groundwater | 7 | 0 |
| Port Huron, City of | 33,800 | Surface Water | 3 | 0 |
| Algonac, City of | 4,110 | Surface Water | 1 | 0 |
| Marysville, City of | 9,959 | Surface Water | 0 | 0 |