Public Water Systems
5,117 active public water systems in IL, tracked from EPA's Safe Drinking Water Information System (SDWIS) across all 50 states. See our methodology.
| System Name | Location | Population | Violations | PFAS |
|---|---|---|---|---|
| Franciscan Health Olympia Fields | Olympia Fields, IL | 1,050 | 0 | - |
| Chebanse | Chebanse, IL | 1,044 | 98 | - |
| Marine | Marine, IL | 1,037 | 18 | - |
| Illiopolis | Illiopolis, IL | 1,037 | 68 | - |
| Lincoln Correctional Center | Lincoln, IL | 1,036 | 41 | - |
| Washburn | Washburn, IL | 1,032 | 215 | - |
| Buncombe Water District | Carbondale, IL | 1,030 | 53 | - |
| Wamac | Centralia, IL | 1,030 | 24 | - |
| Ej Water-Sangchris | Dieterich, IL | 1,025 | 43 | - |
| Lovington | Arthur, IL | 1,024 | 31 | - |
| Prairie Path Water Company-Lake Marian | McHenry, IL | 1,022 | 443 | - |
| Hoyleton Rwc | Centralia, IL | 1,020 | 18 | - |
| Hoffman Rural Water Company | Carlyle, IL | 1,015 | 30 | - |
| Alto Pass Water District | Alto Pass, IL | 1,015 | 250 | - |
| IL American-Country Club | Godfrey, IL | 1,014 | 1 | Clean |
| Odell | Odell, IL | 1,014 | 102 | - |
| Bannockburn | Bannockburn, IL | 1,013 | 33 | - |
| Oakbrook Estates MHP | Northbrook, IL | 1,012 | 27 | - |
| Grand Bear Lodge Water Pk/Jacks Place 6N | Utica, IL | 1,005 | 3 | - |
| Pleasant Hill | Pleasant Hill, IL | 1,004 | 53 | - |
| Wildwood Estates | Orem, IL | 1,001 | 21 | - |
| Central High School | Geneva, IL | 1,001 | 51 | - |
| Camden-Littleton Water Commission | Littleton, IL | 1,000 | 87 | - |
| Constellation/Lasalle Cnty Gen Station | Marseilles, IL | 1,000 | 78 | - |
| Tempel Farms | Waukegan, IL | 1,000 | 0 | - |
| Circle K #6739 | Waukegan, IL | 1,000 | 0 | - |
| Illini Prairie Rest Areas | Champaign, IL | 1,000 | 6 | - |
| Shell Minuteman | Lake Zurich, IL | 1,000 | 7 | - |
| Walmart Kewanee | Winston-Salem, IL | 1,000 | 0 | - |
| IL Hwy 39 Willowcreek Sb Rest | Rock Falls, IL | 1,000 | 0 | - |
| Alexian Brothers Medical Center | Elk Grove Village, IL | 1,000 | 0 | - |
| Alexian Brothers Medical Center & Rehab | Elk Grove Village, IL | 1,000 | 0 | - |
| South Pekin | South Pekin, IL | 996 | 217 | - |
| Alpine Village MHP | Phoenix, IL | 994 | 33 | - |
| Mazon | Mazon, IL | 994 | 65 | - |
| Stateville Correctional Center | Crest Hill, IL | 992 | 300 | - |
| Milledgeville | Milledgeville, IL | 989 | 39 | - |
| Colfax | Colfax, IL | 989 | 104 | - |
| Galatia | Galatia, IL | 989 | 83 | - |
| Newark | Newark, IL | 986 | 8 | - |
| Lockport Heights SD | Lockport, IL | 984 | 19 | - |
| Energy | Energy, IL | 984 | 5 | - |
| Rest Area I-74W Mackinaw Dells | Morton, IL | 975 | 14 | - |
| Wenona | Wenona, IL | 974 | 136 | - |
| Raymond | Raymond, IL | 974 | 33 | - |
| Ridge Farm | Ridge Farm, IL | 973 | 37 | - |
| Viola | Viola, IL | 970 | 861 | - |
| Apple Creek Water Coop | Jacksonville, IL | 968 | 178 | - |
| Ashton | Ashton, IL | 967 | 56 | - |
| Ramsey | Ramsey, IL | 966 | 41 | - |