Population Served
33.1K
Service Connections
12.7K
Total Violations
37
Health-Based Violations
13
Lead & Copper Data
Lead Level
Elevated6.50 ppb
Action Level: 15 ppb (EPA) · Sampled: 2025-12-31
015 ppb action level
Copper Level
No copper sampling data available
System Details
- Water Source
- Groundwater
- System Type
- Community Water System
- City
- ST. CHARLES
- ZIP Code
- 60174
- Counties Served
- Kane
- Cities Served
- SAINT CHARLES
- Open Violations
- 0
- State
- Illinois
Violation Summary
37
Total Violations
13
Health-Based
0
Open Now
Most recent violation: 2025-07-01
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: IL0894830.SafeWater Home