Posen
PWSID: IL0312520
System Details
| Population Served | 5,331 |
| Service Connections | 1,754 |
| Water Source | Surface Water Purchased |
| System Type | Community Water System |
| Owner | Local Government |
| Status | Active |
| City | Posen |
| Zip Code | 60469 |
Lead & Copper Testing
| Contaminant | Level | EPA Action Level | Status |
|---|
| Lead (90th percentile) | 0.0116 mg/L | 0.015 mg/L | Below Action Level |
| Lead (90th percentile) | 0.0057 mg/L | 0.015 mg/L | Below Action Level |
| Lead (90th percentile) | 0.0056 mg/L | 0.015 mg/L | Below Action Level |
1 Active Violations
| Contaminant | Violation | Date | Health-Based | Status |
|---|
| | 2025-07-01 | | Open |
Violation History (11 total)
| Contaminant | Violation | Date | Health-Based | Status |
|---|
| | 2025-07-02 | | Returned to Compliance |
| | 2020-12-30 | | Returned to Compliance |
| | 2020-12-30 | | Returned to Compliance |
| | 2017-07-01 | | Returned to Compliance |
| | 2017-07-01 | | Returned to Compliance |
| | 2014-07-01 | | Returned to Compliance |
| | 2012-07-01 | | Returned to Compliance |
| | 2004-07-01 | | Returned to Compliance |
| | 1996-01-01 | Yes | Returned to Compliance |
| | 1992-12-21 | Yes | Returned to Compliance |