Public Water Systems
5,117 active water systems in IL.
| System Name | Location | Population | Violations | PFAS |
|---|---|---|---|---|
| CENTRALIA | CENTRALIA, IL | 12,182 | 23 | Clean |
| CAPTAIN JAMES A LOVELL FHCC | NORTH CHICAGO, IL | 12,100 | 98 | Clean |
| IL AMERICAN-PONTIAC | GODFREY, IL | 11,864 | 59 | Detected |
| FOX LAKE | INGLESIDE, IL | 11,780 | 49 | Detected |
| RIVER FOREST | RIVER FOREST, IL | 11,717 | 17 | Clean |
| SCHILLER PARK | SCHILLER PARK, IL | 11,709 | 54 | Clean |
| WASHINGTON COUNTY WATER COMPANY | NASHVILLE, IL | 11,374 | 27 | Detected |
| LAKE OF EGYPT PWD | MARION, IL | 11,368 | 172 | Clean |
| ROBINSON-PALESTINE WATER COMMISSION | ROBINSON, IL | 11,331 | 43 | Detected |
| SUGAR GROVE | SUGAR GROVE, IL | 11,243 | 80 | Detected |
| BURR RIDGE | BURR RIDGE, IL | 11,192 | 20 | Clean |
| IL AMERICAN-CHICAGO SUBURBAN | GODFREY, IL | 11,187 | 50 | Clean |
| COLUMBIA | COLUMBIA, IL | 11,129 | 6 | Detected |
| WORTH | WORTH, IL | 10,970 | 54 | Clean |
| SUMMIT | SUMMIT, IL | 10,875 | 35 | Detected |
| CRESTWOOD | CRESTWOOD, IL | 10,826 | 71 | Clean |
| HIGHLAND | HIGHLAND, IL | 10,649 | 66 | Detected |
| WOOD RIVER | WOOD RIVER, IL | 10,464 | 29 | Detected |
| PINGREE GROVE | PINGREE GROVE, IL | 10,365 | 42 | Clean |
| MANHATTAN | MANHATTAN, IL | 10,340 | 178 | Detected |
| BARRINGTON | BARRINGTON, IL | 10,327 | 16 | Detected |
| LYONS | LYONS, IL | 10,304 | 38 | Clean |
| PERU | PERU, IL | 10,300 | 37 | Detected |
| RIVER GROVE | RIVER GROVE, IL | 10,282 | 26 | Clean |
| RIVERDALE | RIVERDALE, IL | 10,266 | 35 | Clean |
| MURPHYSBORO | MURPHYSBORO, IL | 10,241 | 55 | Detected |
| WATERLOO | WATERLOO, IL | 10,190 | 116 | Detected |
| MARYVILLE | MARYVILLE, IL | 10,150 | 22 | Clean |
| LEYDEN TWSP WATER DISTRICT | FRANKLIN PARK, IL | 10,000 | 49 | Clean |
| ADVOCATE CHRIST MEDICAL CENTER | LIBERTYVILLE, IL | 10,000 | 56 | Clean |
| OSF ST FRANCIS HOSPITAL | PEORIA, IL | 10,000 | 20 | — |
| SAUK | SAUK VILLAGE, IL | 9,921 | 687 | Detected |
| WINFIELD | WINFIELD, IL | 9,835 | 43 | Clean |
| STEGER | MANTENO, IL | 9,700 | 87 | Detected |
| LA SALLE | LA SALLE, IL | 9,700 | 219 | Detected |
| ITASCA | ITASCA, IL | 9,506 | 36 | Detected |
| HARVARD | HARVARD, IL | 9,469 | 79 | Clean |
| ROCHELLE | ROCHELLE, IL | 9,446 | 87 | Clean |
| OAK BROOK | OAK BROOK, IL | 9,400 | 54 | Clean |
| FLOSSMOOR | FLOSSMOOR, IL | 9,371 | 21 | Clean |
| RIVERSIDE | RIVERSIDE, IL | 9,298 | 49 | Clean |
| LYNWOOD | LYNWOOD, IL | 9,149 | 51 | Clean |
| PARIS | PARIS, IL | 9,100 | 41 | Clean |
| HARWOOD HEIGHTS | HARDWOOD HEIGHTS, IL | 9,065 | 37 | Clean |
| WILLOWBROOK | WILLOWBROOK, IL | 9,000 | 33 | Clean |
| GLENWOOD | GLENWOOD, IL | 8,956 | 55 | Clean |
| MONMOUTH | MONMOUTH, IL | 8,902 | 269 | Detected |
| CLEAR WATER SERVICE CORP | MATTOON, IL | 8,900 | 19 | Clean |
| OLNEY | OLNEY, IL | 8,877 | 17 | Clean |
| GLENCOE | GLENCOE, IL | 8,849 | 13 | Clean |