Population Served
34.4K
Service Connections
12.7K
Total Violations
25
Health-Based Violations
4
Lead & Copper Data
Lead Level
High Risk16.00 ppb
Action Level: 15 ppb (EPA) · Sampled: 2025-06-30
015 ppb action level
Lead action level exceeded
Copper Level
No copper sampling data available
System Details
- Water Source
- Surface Water
- System Type
- Community Water System
- City
- NORTHBROOK
- ZIP Code
- 60062
- Counties Served
- Cook
- Cities Served
- NORTHBROOK
- Open Violations
- 0
- State
- Illinois
Violation Summary
25
Total Violations
4
Health-Based
0
Open Now
Most recent violation: 2023-07-01
Explore Illinois Water Quality
See all water systems, lead data, and violation trends for Illinois.
Data source: EPA ECHO SDWIS Bulk Download (Jan 2026). PWSID: IL0312070.SafeWater Home