Woodstock
PWSID: IL1110950
System Details
| Population Served | 25,630 |
| Service Connections | 8,995 |
| Water Source | Groundwater |
| System Type | Community Water System |
| Owner | Local Government |
| Status | Active |
| City | Woodstock |
| Zip Code | 60098 |
Areas Served
- Woodstock, Mchenry County
Lead & Copper Testing
| Contaminant | Level | EPA Action Level | Status |
|---|
| Copper (90th percentile) | 1.5000 mg/L | 1.300 mg/L | EXCEEDS Action Level |
| Lead (90th percentile) | 0.0110 mg/L | 0.015 mg/L | Below Action Level |
| Lead (90th percentile) | 0.0083 mg/L | 0.015 mg/L | Below Action Level |
| Lead (90th percentile) | 0.0059 mg/L | 0.015 mg/L | Below Action Level |
| Lead (90th percentile) | 0.0056 mg/L | 0.015 mg/L | Below Action Level |
| Lead (90th percentile) | 0.0034 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) | 0.0018 mg/L | 0.015 mg/L | Below Action Level |
| Lead (90th percentile) | 0.0015 mg/L | 0.015 mg/L | Below Action Level |
Violation History (7 total)
| Contaminant | Violation | Date | Health-Based | Status |
|---|
| | 2025-03-05 | | Returned to Compliance |
| | 2025-01-01 | Major | Acknowledged |
| | 2025-01-01 | Major | Returned to Compliance |
| | 2025-01-01 | Major | Acknowledged |
| | 2025-01-01 | Major | Returned to Compliance |
| | 2024-04-02 | Yes | Returned to Compliance |
| | 1997-01-01 | | Returned to Compliance |