ANN ARBOR Water Quality Report
Population
241,868
people served
Water Source
🌊 Surface
rivers, lakes, reservoirs
National Rank
Top 43%
of 49,184 US systems
5-Year Record
✅ Clean
no violations
A
Safe
Safety Grade
0 violations in the past 5 years
System Details
- PWSID
- MI0000220
- Population Served
- 241,868
- Water Source
- Surface Water
- Owner
- Local Government
- State
- Michigan
- EPA Region
- 5
Contaminants of Concern
| Contaminant | Status | Violations |
|---|---|---|
| Contaminant 3015 | ⚠ Monitoring/Reporting | 2 |
Violation History
2016
2
Total violations on record: 2
Service Area
Cities Served
ZIP Codes Served
How does this compare?
This systemNational average
Grade A
Avg: B-C
2violations total
7% of national average
National avg: ~28 per system
🏙️ This is a large system — serving 36× more people than the national average.