Mendota
PWSID: IL0990550
System Details
| Population Served | 6,926 |
| Service Connections | 2,833 |
| Water Source | Groundwater |
| System Type | Community Water System |
| Owner | Local Government |
| Status | Active |
| City | Mendota |
| Zip Code | 61342 |
Lead & Copper Testing
| Contaminant | Level | EPA Action Level | Status |
|---|
| Lead (90th percentile) | 0.0158 mg/L | 0.015 mg/L | EXCEEDS Action Level |
| Lead (90th percentile) | 0.0076 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 |
| 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 |
2 Active Violations
| Contaminant | Violation | Date | Health-Based | Status |
|---|
| | 2025-07-01 | | Open |
| | 2025-07-01 | | Open |
Violation History (11 total)
| Contaminant | Violation | Date | Health-Based | Status |
|---|
| | 2025-07-02 | | Returned to Compliance |
| | 2021-01-01 | Yes | Returned to Compliance |
| | 2021-01-01 | Yes | Returned to Compliance |
| | 2020-10-01 | Yes | Returned to Compliance |
| | 2020-10-01 | Yes | Returned to Compliance |
| | 2020-07-01 | Yes | Returned to Compliance |
| | 2020-07-01 | Yes | Returned to Compliance |
| | 2005-08-19 | | Returned to Compliance |
| | 2005-08-19 | | Returned to Compliance |