Population Served
21.2K
Service Connections
7.0K
Total Violations
33
Health-Based Violations
13
Lead & Copper Data
Lead Level
Elevated10.00 ppb
Action Level: 15 ppb (EPA) · Sampled: 2025-06-30
015 ppb action level
Copper Level
No copper sampling data available
System Details
- Water Source
- Purchased Surface Water
- System Type
- Community Water System
- City
- GRAYSLAKE
- ZIP Code
- 60030
- Counties Served
- Lake
- Cities Served
- GRAYS LAKE
- Open Violations
- 0
- State
- Illinois
Violation Summary
33
Total Violations
13
Health-Based
0
Open Now
Most recent violation: 2006-07-01
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: IL0970250.SafeWater Home