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 |
|---|---|---|---|---|
| New Piasa Chautauqua PWS | Nebo, IL | 335 | 29 | - |
| Easton | Easton, IL | 334 | 13 | - |
| Messiah Lutheran Presch and Kinder | Wauconda, IL | 334 | 49 | - |
| IL American-Broadlands | Godfrey, IL | 330 | 137 | - |
| Lcpw - Highland Lake Subdivision | Libertyville, IL | 330 | 9 | - |
| Fillmore | Fillmore, IL | 330 | 278 | - |
| Mulkeytown Pwd | Mulkeytown, IL | 328 | 15 | - |
| Imperial Mhc | Denver, IL | 328 | 11 | - |
| Flat Rock | Flat Rock, IL | 325 | 21 | - |
| Deluxe Lake Estates MHP | Farmington, IL | 325 | 52 | - |
| Gavin South School | Ingleside, IL | 325 | 86 | - |
| Fremont School Dist 6-8 | Mundelein, IL | 325 | 3 | - |
| Bristol Grade School | Yorkville, IL | 325 | 358 | - |
| Trinity Evang Lutheran Church | Waukegan, IL | 325 | 4 | - |
| Legacy Academy | Rockford, IL | 325 | 220 | - |
| Victory Christian Center | Bloomington, IL | 325 | 853 | - |
| Hardys Reindeer Ranch | Rantoul, IL | 324 | 10 | - |
| Kinderhook | Kinderhook, IL | 322 | 18 | - |
| Seatonville | Seatonville, IL | 321 | 65 | - |
| IL American-Liberty Ridge East | Godfrey, IL | 320 | 9 | - |
| Patterson (Inc As Wilmington) | Patterson, IL | 320 | 65 | - |
| Snowstar Inc | Andalusia, IL | 320 | 8 | - |
| Woodland | Woodland, IL | 319 | 116 | - |
| Malden | Malden, IL | 318 | 87 | - |
| IL American-Nettle Creek | Godfrey, IL | 317 | 1 | - |
| Ej Water-Coalton | Dieterich, IL | 317 | 51 | - |
| Arrowsmith | Arrowsmith, IL | 315 | 58 | - |
| Full Moon Restaurant | Waukegan, IL | 315 | 9 | - |
| Lee | Lee, IL | 313 | 80 | - |
| Fsh Water Commission | Freeburg, IL | 313 | 44 | - |
| Rock City | Davis, IL | 313 | 20 | - |
| Glen Eden Estates Homeowners Association | Norwood Park Township, IL | 312 | 68 | - |
| Fields Hill Improvement Association | Ottawa, IL | 312 | 210 | - |
| Aqua Illinois-Oakview | Kankakee, IL | 312 | 348 | - |
| Mount Clare | Gillespie, IL | 311 | 56 | - |
| Armington | Armington, IL | 310 | 58 | - |
| Willow Hill | Willow Hill, IL | 309 | 131 | - |
| Ludlow | Ludlow, IL | 308 | 3 | - |
| The Forge: Lemont Quarries | Lemont, IL | 305 | 6 | - |
| Allerton | Allerton, IL | 304 | 11 | - |
| Little York | Little York, IL | 304 | 274 | - |
| Bardolph | Bardolph, IL | 303 | 219 | - |
| Montebello Estate | Lemont, IL | 303 | 0 | - |
| Dg Partners | Varna, IL | 302 | 0 | - |
| Loraine | Loraine, IL | 300 | 180 | - |
| Margarets HI-Acre MHP | Aurora, IL | 300 | 190 | - |
| Margarets Park View Estates MHP | Aurora, IL | 300 | 999 | - |
| Buckingham | Buckingham, IL | 300 | 56 | - |
| Prairie Path Water Company-Del-Mar | McHenry, IL | 300 | 21 | - |
| Ilpo Redwood MHP LLC | Pontiac, IL | 300 | 15 | - |