MISSION BROOK SD
PWS ID: IL0315920 · NORTHBROOK, Illinois 60065
Population Served
2,852
Total Violations
51
Health-Based Violations
41
Water Source
Surface Water
System Details
- System Type
- Community
- Owner Type
- Local
- Connections
- 525
- County
- Cook
- School/Daycare
- No
- MCL Violations
- 41
- Monitoring Violations
- 4
- Treatment Tech Violations
- 0
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| Combined Radium (-226 and -228) | MCL | 28 | 1994 |
| Gross Alpha, Excl. Radon and U | MCL | 13 | 1985 |
| LEAD AND COPPER RULE REVISIONS | RPT | 4 | 2025 |
| Coliform (TCR) | MR | 3 | 1996 |
| Gross Alpha, Excl. Radon and U | MR | 1 | 1977 |
Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025.
This data is provided for informational purposes only.