Michigan
Water Quality Report
86 Good
Average Score
86/100
Water Systems
2,500
Population
10.1M
Violations
7 1 unresolved
Score Distribution
2 A
3 B
1 C
0 D
1 F
Top Contaminant Violations
| Contaminant | Violations |
|---|---|
| Radium-228 | 1 |
| Manganese | 1 |
| Mercury | 1 |
| Total Trihalomethanes | 1 |
| PFAS (Per- and Polyfluoroalkyl Substances) | 1 |
Lowest Scoring Water Systems
29
Ann Arbor Water Treatment F
MI8110001 Ann Arbor, MI 123,851 served
57
City of Flint Water System C
MI2510001 Flint, MI 95,943 served
81
Lansing Board of Water and Light B
MI3310001 Lansing, MI 112,644 served
89
Great Lakes Water Authority (Detroit) B
MI8210001 Detroit, MI 639,111 served
89
Karegnondi Water Authority (Flint area) B
MI2510002 Flint, MI 60,000 served