Herrin
PWSID: IL1990400
System Details
| Population Served | 12,747 |
| Service Connections | 6,127 |
| Water Source | Surface Water Purchased |
| System Type | Community Water System |
| Owner | Local Government |
| Status | Active |
| City | Herrin |
| Zip Code | 62948 |
Areas Served
- Herrin, Williamson County
Lead & Copper Testing
| Contaminant | Level | EPA Action Level | Status |
|---|
| Lead (90th percentile) | 0.0160 mg/L | 0.015 mg/L | EXCEEDS Action Level |
| Lead (90th percentile) | 0.0130 mg/L | 0.015 mg/L | Below Action Level |
| Lead (90th percentile) | 0.0054 mg/L | 0.015 mg/L | Below Action Level |
| Lead (90th percentile) | 0.0039 mg/L | 0.015 mg/L | Below Action Level |
| Lead (90th percentile) | 0.0035 mg/L | 0.015 mg/L | Below Action Level |
2 Active Violations
| Contaminant | Violation | Date | Health-Based | Status |
|---|
| | 2025-07-02 | | Open |
| | 2025-07-01 | | Open |
Violation History (7 total)
| Contaminant | Violation | Date | Health-Based | Status |
|---|
| | 2025-07-01 | | Returned to Compliance |
| | 2024-07-01 | Major | Returned to Compliance |
| | 2024-07-01 | Major | Returned to Compliance |
| | 2024-07-01 | Major | Acknowledged |
| | 2024-07-01 | Major | Returned to Compliance |