Public Water Systems
5,117 active water systems in IL.
| System Name | Location | Population | Violations | PFAS |
|---|---|---|---|---|
| MACKINAW | MACKINAW, IL | 3,399 | 21 | Clean |
| RUSHVILLE | EAST PEORIA, IL | 3,375 | 39 | — |
| CARLYLE | CARLYLE, IL | 3,373 | 75 | Clean |
| LAKE SARA AREA WATER CO-OP, INC. | EFFINGHAM, IL | 3,352 | 18 | Detected |
| FULTON | FULTON, IL | 3,346 | 21 | Detected |
| PONTOON BEACH PWD | GRANITE CITY, IL | 3,325 | 18 | Detected |
| GALENA | GALENA, IL | 3,308 | 124 | Clean |
| IL AMERICAN-LIBERTY RIDGE WEST | GODFREY, IL | 3,307 | 12 | Clean |
| ABINGDON | MONMOUTH, IL | 3,275 | 109 | Detected |
| CASEY | CASEY, IL | 3,274 | 109 | Clean |
| VIRDEN | VIRDEN, IL | 3,274 | 30 | Clean |
| MOUNT STERLING | MT. STERLING, IL | 3,271 | 26 | — |
| OLIN WINCHESTER LLC | EAST ALTON, IL | 3,250 | 151 | — |
| INDIAN HEAD PARK | INDIAN HEAD PARK, IL | 3,240 | 25 | — |
| NASHVILLE | NASHVILLE, IL | 3,230 | 24 | Clean |
| NORTH EAST MARION COUNTY WATER CMPNY | SALEM, IL | 3,220 | 26 | Clean |
| NORTHSHORE UNIV GLENBROOK | GLENVIEW, IL | 3,200 | 42 | Clean |
| KNOXVILLE | KNOXVILLE, IL | 3,120 | 332 | — |
| EAST DUNDEE | EAST DUNDEE, IL | 3,115 | 11 | — |
| SMG WATER COOP | WINCHESTER, IL | 3,110 | 15 | — |
| SLEEPY HOLLOW | SLEEPY HOLLOW, IL | 3,100 | 52 | — |
| MOMENCE | MOMENCE, IL | 3,075 | 39 | — |
| CHRISTOPHER | CHRISTOPHER, IL | 3,072 | 90 | — |
| LAKESIDE PWD | CARBONDALE, IL | 3,065 | 72 | — |
| AQUA ILLINOIS-HAWTHORN WOODS | KANKAKEE, IL | 3,065 | 23 | — |
| SAVANNA | SAVANNA, IL | 3,020 | 30 | — |
| OASIS MHP | NORTHBROOK, IL | 3,000 | 101 | — |
| WINNEBAGO | WINNEBAGO, IL | 3,000 | 76 | — |
| CAT MOSSVILLE | MOSSVILLE, IL | 3,000 | 235 | — |
| NEWTON | NEWTON, IL | 2,977 | 3 | — |
| MARQUETTE HEIGHTS | MARQUETTE HEIGHTS, IL | 2,974 | 127 | — |
| DIXMOOR | DIXMOOR, IL | 2,973 | 165 | Detected |
| BUSHNELL | BUSHNELL, IL | 2,972 | 70 | Detected |
| HAVANA | HAVANA, IL | 2,963 | 15 | Clean |
| MENARD CORRECTIONAL CENTER | MENARD, IL | 2,950 | 125 | — |
| PITTSBURG | PITTSBURG, IL | 2,948 | 45 | — |
| FMC WATER COMPANY | ODIN, IL | 2,945 | 22 | — |
| ARCOLA | ARCOLA, IL | 2,927 | 49 | — |
| MOUNT MORRIS | MT. MORRIS, IL | 2,861 | 200 | — |
| HEYWORTH | HEYWORTH, IL | 2,853 | 5 | — |
| MISSION BROOK SD | NORTHBROOK, IL | 2,852 | 51 | — |
| HOLIDAY SHORES SD | EDWARDSVILLE, IL | 2,840 | 136 | Clean |
| ALBION | ALBION, IL | 2,839 | 20 | — |
| SOUTHERN IL UNIVERSITY-EDWARDSVILLE | EDWARDSVILLE, IL | 2,817 | 12 | Detected |
| MCLEANSBORO | MCLEANSBORO, IL | 2,812 | 50 | — |
| EL PASO | EL PASO, IL | 2,812 | 15 | — |
| SOUTH PALOS TWSP SANITARY DIST | PALOS PARK, IL | 2,800 | 27 | — |
| HIGHLAND PARK HOSPITAL | CHICAGO, IL | 2,800 | 53 | — |
| NORTH MORGAN WATER COOP | JACKSONVILLE, IL | 2,763 | 9 | — |
| HAMILTON | HAMILTON, IL | 2,753 | 52 | — |