Charleston
PWSID: IL0290100
System Details
| Population Served | 17,286 |
| Service Connections | 7,000 |
| Water Source | Surface Water |
| System Type | Community Water System |
| Owner | Local Government |
| Status | Active |
| City | Charleston |
| Zip Code | 61920 |
Lead & Copper Testing
| Contaminant | Level | EPA Action Level | Status |
|---|
| Lead (90th percentile) | 0.0042 mg/L | 0.015 mg/L | Below Action Level |
| Lead (90th percentile) | 0.0027 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) | 0.0023 mg/L | 0.015 mg/L | Below Action Level |
3 Active Violations
| Contaminant | Violation | Date | Health-Based | Status |
|---|
| | 2025-07-01 | | Open |
| | 2024-10-17 | Yes | Open |
| | 2024-07-01 | | Open |
Violation History (9 total)
| Contaminant | Violation | Date | Health-Based | Status |
|---|
| | 2025-09-01 | | Returned to Compliance |
| | 2023-10-01 | Major | Returned to Compliance |
| | 2023-10-01 | Major | Returned to Compliance |
| | 2023-10-01 | Major | Acknowledged |
| | 2023-10-01 | Major | Returned to Compliance |
| | 2023-10-01 | Major | Returned to Compliance |