Compare Systems
3 available Illinois system records
Compare the PWSID, linked community, source-water context, and report year currently available for each Illinois record.
All systems are shown.
| PWSID | System | Cities | Counties | Source water | Violation records shown | Latest CCR |
|---|---|---|---|---|---|---|
| IL0316000 | CHICAGO | Chicago | Not verified | Lake Michigan surface water treated at the Jardine and Sawyer water purification plants | No violation records shown in available records | 2025 |
| IL0894070 | AURORA | Aurora | Not verified | Fox River surface water blended with groundwater from shallow and deep wells | No violation records shown in available records | 2025 |
| IL2010300 | ROCKFORD | Rockford | Not verified | Groundwater | No violation records shown in available records | 2025 |
Profiles
Open a Illinois public water system profile
Each of these 3 profiles keeps its source links, annual-report details, limitations, and summarized CCR entries together.
CHICAGO
PWSID IL0316000
System-level profile for Chicago. Use it to review report-year context, source links, available violation records, contaminant relationships, and limitations.
- System type
- Community water system
- Communities
- Chicago
- Counties
- County not listed
- Latest CCR
- 2025
AURORA
PWSID IL0894070
System-level profile for Aurora. Use it to review report-year context, source links, available violation records, contaminant relationships, and limitations.
- System type
- Community water system
- Communities
- Aurora
- Counties
- County not listed
- Latest CCR
- 2025
ROCKFORD
PWSID IL2010300
System-level profile for Rockford. Use it to review report-year context, source links, available violation records, contaminant relationships, and limitations.
- System type
- Community water system
- Communities
- Rockford
- Counties
- County not listed
- Latest CCR
- 2025