Westchester
PWSID: IL0313150
System Details
| Population Served | 16,241 |
| Service Connections | 7,207 |
| Water Source | Surface Water Purchased |
| System Type | Community Water System |
| Owner | Local Government |
| Status | Active |
| City | Westchester |
| Zip Code | 60154 |
Lead & Copper Testing
| Contaminant | Level | EPA Action Level | Status |
|---|
| Lead (90th percentile) | 0.0097 mg/L | 0.015 mg/L | Below Action Level |
| Lead (90th percentile) | 0.0085 mg/L | 0.015 mg/L | Below Action Level |
| Lead (90th percentile) | 0.0064 mg/L | 0.015 mg/L | Below Action Level |
| Lead (90th percentile) | 0.0064 mg/L | 0.015 mg/L | Below Action Level |
| Lead (90th percentile) | 0.0044 mg/L | 0.015 mg/L | Below Action Level |
| Lead (90th percentile) | 0.0044 mg/L | 0.015 mg/L | Below Action Level |
| Lead (90th percentile) | 0.0038 mg/L | 0.015 mg/L | Below Action Level |
| Lead (90th percentile) | 0.0038 mg/L | 0.015 mg/L | Below Action Level |
| Lead (90th percentile) | 0.0021 mg/L | 0.015 mg/L | Below Action Level |
1 Active Violations
| Contaminant | Violation | Date | Health-Based | Status |
|---|
| | 2025-07-02 | | Open |
Violation History (13 total)
| Contaminant | Violation | Date | Health-Based | Status |
|---|
| | 2024-10-01 | Major | Acknowledged |
| | 2024-10-01 | Major | Acknowledged |
| | 2024-10-01 | Major | Returned to Compliance |
| | 2024-10-01 | Major | Returned to Compliance |
| | 2024-10-01 | Major | Acknowledged |
| | 2024-10-01 | Major | Acknowledged |
| | 2024-10-01 | Major | Returned to Compliance |
| | 2024-10-01 | Major | Returned to Compliance |
| | 2020-12-30 | | Returned to Compliance |
| | 2020-12-30 | | Returned to Compliance |
| | 1993-01-01 | Yes | Returned to Compliance |
| | 1992-12-07 | Yes | Returned to Compliance |