Washtenaw County, Michigan
21 active water systems in this county.
| Water System | Population Served | Source | Violations | Health-Based |
|---|---|---|---|---|
| St. Louis Center | 56 | Groundwater | 22 | 14 |
| Superior Township | 6,830 | Surface Water Purchased | 7 | 4 |
| Village at Eagle Gardens | 193 | Groundwater | 13 | 1 |
| Westbrook Apartments | 330 | Groundwater | 5 | 1 |
| Pittsfield Township | 24,500 | Surface Water Purchased | 19 | 0 |
| Saline | 9,158 | Groundwater | 12 | 0 |
| Scio Township | 8,500 | Surface Water Purchased | 9 | 0 |
| Augusta Township | 3,907 | Surface Water Purchased | 8 | 0 |
| Milan | 7,363 | Groundwater | 7 | 0 |
| Loch Alpine Sanitary Authority | 1,506 | Groundwater | 6 | 0 |
| Ann Arbor Township | 1,338 | Surface Water Purchased | 5 | 0 |
| Chelsea | 5,474 | Groundwater | 3 | 0 |
| Barton Hills | 450 | Groundwater | 3 | 0 |
| Ann Arbor | 241,868 | Surface Water | 2 | 0 |
| Sisters of Mary, Mother of Eucharist | 100 | Groundwater | 2 | 0 |
| Harbor Cove Apartments | 288 | Groundwater | 1 | 0 |
| Sylvan Township | 263 | Groundwater | 1 | 0 |
| Ypsilanti Community Utility Authority | 53,988 | Surface Water Purchased | 0 | 0 |
| Dexter | 4,500 | Groundwater | 0 | 0 |
| Trinity Health Ann Arbor | 2,500 | Surface Water Purchased | 0 | 0 |
| Manchester | 2,150 | Groundwater | 0 | 0 |