Water Systems
| Water System | Service Area | People Served | Contaminants detected | |
|---|---|---|---|---|
CH Chicago | Cook County, IL | 2,700,000 | 26 | View |
AU Aurora | Aurora, IL | 200,000 | 34 | View |
NA Naperville | Naperville, IL | 155,156 | 21 | View |
JO Joliet | Joliet, IL | 148,693 | 16 | View |
RO Rockford | Rockford, IL | 147,051 | 40 | View |
IL Il American-Champaign | Champaign, IL | 142,250 | 19 | View |
IL Il American-East St Louis | East St Louis, IL | 139,879 | 34 | View |
IL Il American-Peoria | Peoria, IL | 121,478 | 37 | View |
SP Springfield | Springfield, IL | 117,428 | 31 | View |
EL Elgin | Elgin, IL | 113,911 | 34 | View |