Chicago Heights
PWSID: IL0310450
System Details
| Population Served | 26,184 |
| Service Connections | 9,795 |
| Water Source | Surface Water Purchased |
| System Type | Community Water System |
| Owner | Local Government |
| Status | Active |
| City | Chicago Heights |
| Zip Code | 60411 |
Areas Served
- Chicago Heights, Cook County
Lead & Copper Testing
| Contaminant | Level | EPA Action Level | Status |
|---|
| Lead (90th percentile) | 0.0094 mg/L | 0.015 mg/L | Below Action Level |
| Lead (90th percentile) | 0.0066 mg/L | 0.015 mg/L | Below Action Level |
| Lead (90th percentile) | 0.0059 mg/L | 0.015 mg/L | Below Action Level |
| Lead (90th percentile) | 0.0051 mg/L | 0.015 mg/L | Below Action Level |
| Lead (90th percentile) | 0.0025 mg/L | 0.015 mg/L | Below Action Level |
1 Active Violations
| Contaminant | Violation | Date | Health-Based | Status |
|---|
| | 2025-07-02 | | Open |
Violation History (14 total)
| Contaminant | Violation | Date | Health-Based | Status |
|---|
| | 2025-01-01 | Major | Acknowledged |
| | 2025-01-01 | Major | Returned to Compliance |
| | 2025-01-01 | Major | Acknowledged |
| | 2025-01-01 | Major | Returned to Compliance |
| | 2023-10-01 | | Returned to Compliance |
| | 2023-10-01 | | Returned to Compliance |
| | 2023-10-01 | | Returned to Compliance |
| | 2023-10-01 | | Returned to Compliance |
| | 2017-02-01 | | Returned to Compliance |
| | 2017-02-01 | | Returned to Compliance |
| | 2017-01-01 | Major | Returned to Compliance |
| | 2017-01-01 | Major | Returned to Compliance |
| | 2014-07-01 | | Returned to Compliance |