Riverdale
PWSID: IL0312580
System Details
| Population Served | 10,266 |
| Service Connections | 3,311 |
| Water Source | Surface Water Purchased |
| System Type | Community Water System |
| Owner | Local Government |
| Status | Active |
| City | Riverdale |
| Zip Code | 60827 |
Lead & Copper Testing
| Contaminant | Level | EPA Action Level | Status |
|---|
| Lead (90th percentile) | 0.0144 mg/L | 0.015 mg/L | Below Action Level |
| Lead (90th percentile) | 0.0100 mg/L | 0.015 mg/L | Below Action Level |
| Lead (90th percentile) | 0.0078 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) | 0.0053 mg/L | 0.015 mg/L | Below Action Level |
1 Active Violations
| Contaminant | Violation | Date | Health-Based | Status |
|---|
| | 2025-07-01 | | Open |
Violation History (6 total)
| Contaminant | Violation | Date | Health-Based | Status |
|---|
| | 2011-07-01 | | Returned to Compliance |
| | 2004-07-01 | | Returned to Compliance |
| | 1994-01-01 | Yes | Returned to Compliance |
| | 1993-01-01 | Yes | Returned to Compliance |
| | 1992-12-07 | Yes | Returned to Compliance |