Illiopolis
PWSID: IL1670550
System Details
| Population Served | 1,037 |
| Service Connections | 445 |
| Water Source | Groundwater Purchased |
| System Type | Community Water System |
| Owner | Local Government |
| Status | Active |
| City | Illiopolis |
| Zip Code | 62539 |
Areas Served
- Illiopolis, Sangamon County
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) | 0.0029 mg/L | 0.015 mg/L | Below Action Level |
| Lead (90th percentile) | 0.0017 mg/L | 0.015 mg/L | Below Action Level |
| Lead (90th percentile) | 0.0013 mg/L | 0.015 mg/L | Below Action Level |
| Lead (90th percentile) | 0.0012 mg/L | 0.015 mg/L | Below Action Level |
| Lead (90th percentile) | 0.0011 mg/L | 0.015 mg/L | Below Action Level |
| Lead (90th percentile) | 0.0000 mg/L | 0.015 mg/L | Below Action Level |
| Lead (90th percentile) | 0.0000 mg/L | 0.015 mg/L | Below Action Level |
Violation History (38 total)
| Contaminant | Violation | Date | Health-Based | Status |
|---|
| | 2025-04-01 | Major | Acknowledged |
| | 2025-04-01 | Major | Returned to Compliance |
| | 2025-04-01 | Major | Acknowledged |
| | 2025-04-01 | Major | 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 |
| | 2023-10-01 | | 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 |
| | 2023-07-01 | | Returned to Compliance |
| | 2023-07-01 | | Returned to Compliance |
| | 2022-04-01 | Yes | Returned to Compliance |
| | 2022-04-01 | Yes | Acknowledged |
| | 2022-04-01 | Yes | Returned to Compliance |
| | 2022-04-01 | Yes | Acknowledged |
| | 2022-01-01 | Yes | Returned to Compliance |
| | 2022-01-01 | Yes | Acknowledged |
| | 2022-01-01 | Yes | Returned to Compliance |
| | 2021-10-01 | Yes | Returned to Compliance |
| | 2021-10-01 | Yes | Acknowledged |
| | 2021-10-01 | Yes | Acknowledged |
| | 2021-10-01 | Yes | Returned to Compliance |
| | 2021-07-01 | Yes | Returned to Compliance |
| | 2021-07-01 | Yes | Acknowledged |
| | 2021-07-01 | Yes | Acknowledged |
| | 2021-07-01 | Yes | Acknowledged |
| | 2021-07-01 | Yes | Returned to Compliance |
| | 2020-01-01 | Major | Returned to Compliance |
| | 2020-01-01 | Major | Returned to Compliance |
| | 2020-01-01 | Major | Returned to Compliance |
| | 2017-01-01 | | Returned to Compliance |
| | 2017-01-01 | | Returned to Compliance |
| | 2006-10-14 | | Returned to Compliance |
| | 2004-09-20 | | Returned to Compliance |