Population Served
21.2K
Service Connections
6.5K
Total Violations
190
Health-Based Violations
29
Lead & Copper Data
Lead Level
Safe0.81 ppb
Action Level: 15 ppb (EPA) · Sampled: 2025-06-30
015 ppb action level
Copper Level
1686 ppb
Action Level: 1,300 ppb (EPA) · Sampled: 2023-06-30
Copper action level exceeded
System Details
- Water Source
- Groundwater
- System Type
- Community Water System
- City
- CREST HILL
- ZIP Code
- 60403
- Counties Served
- Will
- Cities Served
- CREST HILL
- Open Violations
- 0
- State
- Illinois
Violation Summary
190
Total Violations
29
Health-Based
0
Open Now
Most recent violation: 2025-07-12
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Data source: EPA ECHO SDWIS Bulk Download (Jan 2026). PWSID: IL1970250.SafeWater Home