Union
PWSID: IL1110900
System Details
| Population Served | 594 |
| Service Connections | 276 |
| Water Source | Groundwater |
| System Type | Community Water System |
| Owner | Local Government |
| Status | Active |
| City | Union |
| Zip Code | 60180 |
Lead & Copper Testing
| Contaminant | Level | EPA Action Level | Status |
|---|
| Lead (90th percentile) | 0.0074 mg/L | 0.015 mg/L | Below Action Level |
| Lead (90th percentile) | 0.0068 mg/L | 0.015 mg/L | Below Action Level |
| Lead (90th percentile) | 0.0026 mg/L | 0.015 mg/L | Below Action Level |
| Lead (90th percentile) | 0.0012 mg/L | 0.015 mg/L | Below Action Level |
1 Active Violations
| Contaminant | Violation | Date | Health-Based | Status |
|---|
| | 2025-07-02 | | Open |
Violation History (12 total)
| Contaminant | Violation | Date | Health-Based | Status |
|---|
| | 2025-07-01 | | Returned to Compliance |
| | 2010-01-21 | | Returned to Compliance |
| | 2007-03-23 | | Returned to Compliance |
| | 2007-03-23 | | Returned to Compliance |
| | 2006-08-20 | | Returned to Compliance |
| | 2006-08-20 | | Returned to Compliance |
| | 2005-07-01 | | Returned to Compliance |
| | 2005-07-01 | | Returned to Compliance |
| | 2004-07-01 | | Returned to Compliance |
| | 2004-07-01 | | Returned to Compliance |
| | 1994-10-01 | | Returned to Compliance |