Herrick
PWSID: IL1730150
System Details
| Population Served | 358 |
| Service Connections | 280 |
| Water Source | Groundwater |
| System Type | Community Water System |
| Owner | Local Government |
| Status | Active |
| City | Herrick |
| Zip Code | 62431 |
Lead & Copper Testing
| Contaminant | Level | EPA Action Level | Status |
|---|
| Copper (90th percentile) | 2.6000 mg/L | 1.300 mg/L | EXCEEDS Action Level |
| Copper (90th percentile) | 2.0000 mg/L | 1.300 mg/L | EXCEEDS Action Level |
| Copper (90th percentile) | 2.0000 mg/L | 1.300 mg/L | EXCEEDS Action Level |
| Copper (90th percentile) | 1.8000 mg/L | 1.300 mg/L | EXCEEDS Action Level |
| Copper (90th percentile) | 1.8000 mg/L | 1.300 mg/L | EXCEEDS Action Level |
| Copper (90th percentile) | 1.6000 mg/L | 1.300 mg/L | EXCEEDS Action Level |
| Copper (90th percentile) | 1.5500 mg/L | 1.300 mg/L | EXCEEDS Action Level |
| Lead (90th percentile) | 0.0056 mg/L | 0.015 mg/L | Below Action Level |
| Lead (90th percentile) | 0.0045 mg/L | 0.015 mg/L | Below Action Level |
| Lead (90th percentile) | 0.0035 mg/L | 0.015 mg/L | Below Action Level |
| Lead (90th percentile) | 0.0031 mg/L | 0.015 mg/L | Below Action Level |
| Lead (90th percentile) | 0.0031 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) | 0.0028 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 |
2 Active Violations
| Contaminant | Violation | Date | Health-Based | Status |
|---|
| | 2025-07-02 | | Open |
| | 2023-04-02 | Yes | Open |
Violation History (122 total)
| Contaminant | Violation | Date | Health-Based | Status |
|---|
| | 2025-01-01 | Major | Acknowledged |
| | 2022-12-30 | | Returned to Compliance |
| | 2022-12-30 | | Returned to Compliance |
| | 2022-07-01 | | Returned to Compliance |
| | 2022-07-01 | | Returned to Compliance |
| | 2021-07-01 | | Returned to Compliance |
| | 2020-07-01 | | Returned to Compliance |
| | 2020-01-01 | Major | Returned to Compliance |
| | 2020-01-01 | Major | Acknowledged |
| | 2020-01-01 | Major | Returned to Compliance |
| | 2020-01-01 | Major | Returned to Compliance |
| | 2020-01-01 | Major | Acknowledged |
| | 2020-01-01 | Major | Returned to Compliance |
| | 2020-01-01 | Major | Returned to Compliance |
| | 2020-01-01 | Major | Acknowledged |
| | 2020-01-01 | Major | Returned to Compliance |
| | 2020-01-01 | Major | Returned to Compliance |
| | 2020-01-01 | Major | Acknowledged |
| | 2020-01-01 | Major | Returned to Compliance |
| | 2020-01-01 | Major | Returned to Compliance |
| | 2020-01-01 | Major | Acknowledged |
| | 2020-01-01 | Major | Returned to Compliance |
| | 2020-01-01 | Major | Returned to Compliance |
| | 2020-01-01 | Major | Acknowledged |
| | 2020-01-01 | Major | Returned to Compliance |
| | 2020-01-01 | Major | Returned to Compliance |
| | 2020-01-01 | Major | Acknowledged |
| | 2020-01-01 | Major | Returned to Compliance |
| | 2020-01-01 | Major | Returned to Compliance |
| | 2020-01-01 | Major | Acknowledged |
| | 2020-01-01 | Major | Returned to Compliance |
| | 2020-01-01 | Major | Returned to Compliance |
| | 2020-01-01 | Major | Acknowledged |
| | 2020-01-01 | Major | Returned to Compliance |
| | 2020-01-01 | Major | Returned to Compliance |
| | 2020-01-01 | Major | Acknowledged |
| | 2020-01-01 | Major | Returned to Compliance |
| | 2020-01-01 | Major | Returned to Compliance |
| | 2020-01-01 | Major | Acknowledged |
| | 2020-01-01 | Major | Returned to Compliance |
| | 2020-01-01 | Major | Returned to Compliance |
| | 2020-01-01 | Major | Acknowledged |
| | 2020-01-01 | Major | Returned to Compliance |
| | 2020-01-01 | Major | Returned to Compliance |
| | 2020-01-01 | Major | Acknowledged |
| | 2020-01-01 | Major | Returned to Compliance |
| | 2020-01-01 | Major | Returned to Compliance |
| | 2020-01-01 | Major | Acknowledged |
| | 2020-01-01 | Major | Returned to Compliance |
| | 2020-01-01 | Major | Returned to Compliance |
Showing 50 of 120 historical violations.