Public Water Systems
5,117 active water systems in IL.
| System Name | Location | Population | Violations | PFAS |
|---|---|---|---|---|
| LAKE VILLA | LAKE VILLA, IL | 8,829 | 75 | Clean |
| MASCOUTAH | MASCOUTAH, IL | 8,759 | 43 | Clean |
| IL AMERICAN-JERSEYVILLE | GODFREY, IL | 8,737 | 189 | Detected |
| BEACH PARK | BEACH PARK, IL | 8,710 | 8 | Clean |
| CLARENDON HILLS | CLARENDON HILLS, IL | 8,702 | 14 | Clean |
| WEST FRANKFORT | WEST FRANKFORT, IL | 8,650 | 62 | Clean |
| ROCK FALLS | ROCK FALLS, IL | 8,620 | 142 | Detected |
| HARRISBURG | HARRISBURG, IL | 8,524 | 39 | Clean |
| CALUMET PARK | CALUMET PARK, IL | 8,442 | 51 | Clean |
| CHESTER | CHESTER, IL | 8,407 | 113 | Detected |
| GILBERTS | GILBERTS, IL | 8,366 | 17 | Clean |
| GREENVILLE | GREENVILLE, IL | 8,310 | 96 | Clean |
| PRAIRIE PATH WATER CO-WHISPERING HILLS | MCHENRY, IL | 8,300 | 76 | Detected |
| NORTH TAZEWELL PWD | EAST PEORIA, IL | 8,300 | 172 | Clean |
| CRETE | CRETE, IL | 8,275 | 26 | Detected |
| HILLSIDE | HILLSIDE, IL | 8,200 | 24 | Clean |
| BENTON | BENTON, IL | 8,104 | 85 | Clean |
| ISLAND LAKE | ISLAND LAKE, IL | 8,066 | 10 | Detected |
| MILL CREEK WATER RECLAMATION DISTRICT | GENEVA, IL | 8,000 | 59 | Detected |
| WESTERN ILLINOIS UNIVERSITY | MACOMB, IL | 8,000 | 68 | Detected |
| LINCOLNSHIRE | LINCOLNSHIRE, IL | 7,940 | 17 | Clean |
| FOSTERBURG PWD | ALTON, IL | 7,940 | 25 | Detected |
| SALEM | SALEM, IL | 7,905 | 30 | Clean |
| IL AMERICAN-SOUTH BELOIT | GODFREY, IL | 7,893 | 108 | Detected |
| LONG CREEK TOWNSHIP PWS | DECATUR, IL | 7,850 | 22 | Clean |
| BROADVIEW | BROADVIEW, IL | 7,847 | 34 | Clean |
| WEST DUNDEE | WEST DUNDEE, IL | 7,845 | 111 | Clean |
| PRINCETON | PRINCETON, IL | 7,832 | 32 | Clean |
| ROCK ISLAND ARSENAL, US ARMY | ROCK ISLAND, IL | 7,800 | 46 | Detected |
| HAMPSHIRE | HAMPSHIRE, IL | 7,758 | 142 | Clean |
| ROCKTON | ROCKTON, IL | 7,685 | 212 | Detected |
| VANDALIA | VANDALIA, IL | 7,616 | 62 | Clean |
| MARENGO | MARENGO, IL | 7,572 | 14 | Detected |
| SILVIS | SILVIS, IL | 7,473 | 278 | Detected |
| DUQUOIN | DUQUOIN, IL | 7,169 | 55 | Detected |
| SANDWICH | SANDWICH, IL | 7,156 | 48 | Clean |
| CLINTON | CLINTON, IL | 7,128 | 76 | Clean |
| RACCOON WATER COMPANY | CENTRALIA, IL | 7,080 | 41 | Clean |
| NORTH RIVERSIDE | NORTH RIVERSIDE, IL | 7,071 | 29 | Clean |
| MOUNT CARMEL | MT CARMEL, IL | 7,015 | 253 | Detected |
| AQUA ILLINOIS-UNIVERSITY PARK | KANKAKEE, IL | 7,002 | 24 | Detected |
| SOUTHEAST REGIONAL WATER FACILITY | DARIEN, IL | 6,940 | 2 | Clean |
| MENDOTA | MENDOTA, IL | 6,926 | 171 | Detected |
| STICKNEY | STICKNEY, IL | 6,902 | 52 | Clean |
| ABS WATER COOP | CLAYTON, IL | 6,858 | 35 | Clean |
| AMERICAN WATER OPER AND MAINTENANCE, LLC | SCOTT AIR FORCE BASE, IL | 6,779 | 49 | Detected |
| IL AMERICAN-VALLEY VIEW | GODFREY, IL | 6,721 | 3 | Detected |
| CURRAN-GARDNER TOWNSHIP PWD | SPRINGFIELD, IL | 6,651 | 12 | Clean |
| LITCHFIELD | LITCHFIELD, IL | 6,648 | 172 | Clean |
| BOND/MADISON WATER COMPANY | POCAHONTAS, IL | 6,645 | 21 | Detected |