NORTHFIELD ESTATES
PWS ID: MI0040594 · OAK BROOK, Michigan 60523
Population Served
1,620
Total Violations
9
Health-Based Violations
0
Water Source
Groundwater
System Details
- System Type
- Community
- Owner Type
- Private
- Connections
- 648
- County
- Washtenaw
- School/Daycare
- No
- MCL Violations
- 0
- Monitoring Violations
- 6
- Treatment Tech Violations
- 0
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| Total Haloacetic Acids (HAA5) | MR | 3 | 2019 |
| TTHM | MR | 3 | 2019 |
Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025.
This data is provided for informational purposes only.