Public Water Systems
5,117 active water systems in IL.
| System Name | Location | Population | Violations | PFAS |
|---|---|---|---|---|
| LAKEWOOD | LAKEWOOD, IL | 4,267 | 242 | — |
| HOMETOWN | HOMETOWN, IL | 4,240 | 32 | Clean |
| GEORGETOWN | GEORGETOWN, IL | 4,200 | 271 | Clean |
| MORRISON | MORRISON, IL | 4,188 | 4 | Detected |
| AQUA ILLINOIS-PEOTONE | KANKAKEE, IL | 4,182 | 27 | Detected |
| NEW BADEN | NEW BADEN, IL | 4,178 | 15 | Detected |
| WOODHAVEN | SUBLETTE, IL | 4,100 | 76 | Clean |
| MILLSTADT | SWANSEA, IL | 4,071 | 57 | Detected |
| SMITHTON | SMITHTON, IL | 4,006 | 65 | — |
| WASCO SD | WASCO, IL | 4,000 | 110 | Detected |
| WOODSMOKE RANCH | SENECA, IL | 4,000 | 10 | — |
| BURNHAM | BURNHAM, IL | 3,989 | 59 | Clean |
| NORTH EAST CENTRAL PWD | EDWARDSVILLE, IL | 3,975 | 25 | Detected |
| COAL VALLEY PWD | MARION, IL | 3,960 | 23 | Clean |
| HAMILTON COUNTY WATER DISTRICT | MCLEANSBORO, IL | 3,958 | 19 | Detected |
| ROSEMONT | ROSEMONT, IL | 3,952 | 11 | Clean |
| MARSHALL | MARSHALL, IL | 3,947 | 58 | Clean |
| CORINTH PWD | PITTSBURG, IL | 3,927 | 16 | Detected |
| SOUTH CHICAGO HEIGHTS | SOUTH CHICAGO HEIGHTS, IL | 3,924 | 18 | Clean |
| SALINE VALLEY CONSERVANCY DISTRICT | ELDORADO, IL | 3,921 | 31 | Detected |
| WESTVILLE | WESTVILLE, IL | 3,917 | 90 | Clean |
| METAMORA | METAMORA, IL | 3,895 | 29 | Clean |
| COAL VALLEY | COAL VALLEY, IL | 3,873 | 24 | Detected |
| WONDER LAKE | WONDER LAKE, IL | 3,870 | 403 | Clean |
| ROCHESTER | ROCHESTER, IL | 3,856 | 46 | Clean |
| RED BUD | RED BUD, IL | 3,804 | 67 | Detected |
| GREENE COUNTY RWD | CARROLLTON, IL | 3,786 | 18 | — |
| PLEASANT VALLEY PWD | PEORIA, IL | 3,783 | 58 | Detected |
| EMBARRAS AREA WATER DISTRICT | CHARLESTON, IL | 3,750 | 32 | Clean |
| GILLESPIE | GILLESPIE, IL | 3,737 | 275 | Clean |
| LCPW - PEKARA SUBDIVISION | LIBERTYVILLE, IL | 3,711 | 5 | Detected |
| REND LAKE INTER-CITY WATER SYSTEM | BENTON, IL | 3,650 | 26 | — |
| FOUNTAIN WATER DISTRICT | VALMEYER, IL | 3,650 | 26 | Detected |
| FAIRBURY | FAIRBURY, IL | 3,633 | 7 | Clean |
| RIVERWOODS | VERNON HILLS, IL | 3,618 | 27 | Clean |
| IL AMERICAN-TOLONO | GODFREY, IL | 3,604 | 73 | — |
| WOODLAWN | WOODLAWN, IL | 3,587 | 31 | Detected |
| THREE COUNTY PWD | NEW DOUGLAS, IL | 3,575 | 38 | — |
| HAINESVILLE | VOLO, IL | 3,528 | 107 | Detected |
| WESTERN WAYNE WATER DISTRICT | WAYNE CITY, IL | 3,516 | 94 | — |
| JOHNSTON CITY | JOHNSTON CITY, IL | 3,509 | 20 | Detected |
| SOUTH JACKSONVILLE | SOUTH JACKSONVILLE, IL | 3,508 | 94 | Detected |
| GIBSON CITY | GIBSON CITY, IL | 3,500 | 19 | Detected |
| LE ROY | LEROY, IL | 3,498 | 105 | Clean |
| FORSYTH | FORSYTH, IL | 3,490 | 12 | Clean |
| TRITOWNSHIP WATER DISTRICT | TRENTON, IL | 3,470 | 77 | Clean |
| ALEDO | ALEDO, IL | 3,470 | 54 | Clean |
| OREGON | OREGON, IL | 3,449 | 54 | Clean |
| HARDINVILLE WATER COMPANY | ROBINSON, IL | 3,403 | 16 | — |
| LUTHERAN GENERAL HOSPITAL | LIBERTYVILLE, IL | 3,400 | 203 | Clean |