Michigan Drinking Water Violations
527Water Systems
6,471Total Violations
435Health-Based
| County | Water Systems | Total Violations | Health-Based |
|---|---|---|---|
| Lenawee | 18 | 265 | 71 |
| Genesee | 17 | 426 | 67 |
| Wayne | 36 | 404 | 32 |
| Delta | 5 | 120 | 22 |
| Berrien | 13 | 539 | 20 |
| Washtenaw | 21 | 125 | 20 |
| Calhoun | 6 | 60 | 18 |
| Shiawassee | 7 | 76 | 13 |
| Oakland | 34 | 188 | 12 |
| Macomb | 13 | 172 | 12 |
| Bay | 6 | 42 | 11 |
| Baraga | 2 | 31 | 11 |
| Lapeer | 8 | 111 | 10 |
| Cass | 6 | 78 | 8 |
| Marquette | 9 | 143 | 7 |
| Kent | 14 | 56 | 7 |
| Jackson | 14 | 170 | 6 |
| Keweenaw | 5 | 144 | 6 |
| Hillsdale | 6 | 38 | 6 |
| Wexford | 4 | 60 | 5 |
| Mackinac | 2 | 22 | 5 |
| Monroe | 9 | 196 | 4 |
| Van Buren | 11 | 126 | 4 |
| Clinton | 6 | 87 | 4 |
| Allegan | 8 | 48 | 4 |
| Kalamazoo | 7 | 32 | 4 |
| Ottawa | 15 | 32 | 4 |
| Osceola | 4 | 27 | 4 |
| Huron | 3 | 16 | 4 |
| Isabella | 1 | 12 | 4 |
| Mecosta | 1 | 6 | 4 |
| Ionia | 9 | 202 | 3 |
| Chippewa | 4 | 33 | 3 |
| St. Joseph | 8 | 192 | 2 |
| St. Clair | 7 | 84 | 2 |
| Ingham | 7 | 76 | 2 |
| Muskegon | 10 | 70 | 2 |
| Alger | 4 | 69 | 2 |
| Ogemaw | 2 | 32 | 2 |
| Manistee | 4 | 179 | 1 |
| Houghton | 10 | 127 | 1 |
| Gladwin | 2 | 77 | 1 |
| Newaygo | 6 | 42 | 1 |
| Grand Traverse | 2 | 33 | 1 |
| Livingston | 4 | 16 | 1 |
| Oceana | 3 | 15 | 1 |
| Oscoda | 3 | 3 | 1 |
| Missaukee | 2 | 181 | 0 |
| Barry | 6 | 166 | 0 |
| Roscommon | 7 | 119 | 0 |
| Montcalm | 10 | 118 | 0 |
| Arenac | 3 | 106 | 0 |
| Eaton | 8 | 84 | 0 |
| Iron | 6 | 61 | 0 |
| Ontonagon | 5 | 59 | 0 |
| Montmorency | 3 | 58 | 0 |
| Gratiot | 6 | 51 | 0 |
| Sanilac | 3 | 39 | 0 |
| Cheboygan | 5 | 32 | 0 |
| Antrim | 4 | 29 | 0 |
| Tuscola | 3 | 29 | 0 |
| Benzie | 2 | 22 | 0 |
| Otsego | 4 | 20 | 0 |
| Charlevoix | 4 | 19 | 0 |
| Gogebic | 5 | 19 | 0 |
| Luce | 1 | 18 | 0 |
| Menominee | 4 | 16 | 0 |
| Presque Isle | 4 | 15 | 0 |
| Saginaw | 3 | 15 | 0 |
| Branch | 4 | 14 | 0 |
| Leelanau | 4 | 13 | 0 |
| Schoolcraft | 3 | 13 | 0 |
| Dickinson | 5 | 12 | 0 |
| Clare | 2 | 6 | 0 |
| Emmet | 2 | 6 | 0 |
| Iosco | 2 | 6 | 0 |
| Mason | 3 | 6 | 0 |
| Alcona | 1 | 5 | 0 |
| Lake | 1 | 4 | 0 |
| Crawford | 2 | 3 | 0 |
| Kalkaska | 1 | 3 | 0 |
| Alpena | 1 | 1 | 0 |
| Midland | 2 | 1 | 0 |