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 |
|---|---|---|---|---|
| Maplewood Mac LLC | Crofton, IL | 270 | 8 | - |
| Thawville | Thawville, IL | 270 | 120 | - |
| Alvin | Alvin, IL | 270 | 467 | - |
| Elliott | Elliott, IL | 269 | 43 | - |
| Victoria | Victoria, IL | 268 | 70 | - |
| Bryant | Cuba, IL | 267 | 491 | - |
| Fields of Long Grove | Long Grove, IL | 267 | 80 | - |
| Aqua Illinois-Ravenna | Kankakee, IL | 267 | 1 | - |
| Cabery | Cabery, IL | 266 | 157 | - |
| Cedar Point Water Company | Hennepin, IL | 266 | 80 | - |
| Rio | Rio, IL | 265 | 165 | - |
| Bar Salotto | Arlington Heights, IL | 265 | 10 | - |
| Plainville | Barry, IL | 264 | 34 | - |
| Hartsburg | Hartsburg, IL | 262 | 19 | - |
| North Boone Upper Elementary School | Poplar Grove, IL | 262 | 52 | - |
| Mapleton | Mapleton, IL | 261 | 233 | - |
| Maple Acres MHP | Plainfield, IL | 260 | 41 | - |
| Rustic Acres Water Association | Colona, IL | 260 | 198 | - |
| Rutland | Rutland, IL | 259 | 181 | - |
| Kingston Mines | Kingston Mines, IL | 259 | 766 | - |
| Pulaski | Pulaski, IL | 259 | 55 | - |
| Sims | Sims, IL | 259 | 79 | - |
| McNabb | McNabb, IL | 258 | 61 | - |
| Hazy Hills Golf Course | Hudson, IL | 257 | 0 | - |
| Jewett | Jewett, IL | 256 | 49 | - |
| Tanneron Bay Homeowners Association | Vernon Hills, IL | 256 | 73 | - |
| Butler | Butler, IL | 253 | 17 | - |
| The Orchards Mhc | Carterville, IL | 253 | 10 | - |
| Scot Forge | Spring Grove, IL | 253 | 68 | - |
| Prairie Path Water Company-Valentine | McHenry, IL | 252 | 22 | - |
| Richview | Richview, IL | 251 | 18 | - |
| Crystal Creek Farm | Harvard, IL | 251 | 0 | - |
| Ripley | Ripley, IL | 250 | 58 | - |
| Arlington | Arlington, IL | 250 | 140 | - |
| Palmer | Palmer, IL | 250 | 25 | - |
| Cortland Corners MHP | Malta, IL | 250 | 507 | - |
| Vermilion | Vermilion, IL | 250 | 69 | - |
| Murphysboro Lsrc | Pinckneyville, IL | 250 | 0 | - |
| Four Star Campground | Marseilles, IL | 250 | 410 | - |
| Willow Creek North MHP | Bloomington, IL | 250 | 81 | - |
| Lake Thunderbird Subdivsion | Peru, IL | 250 | 57 | - |
| Lafayette | Lafayette, IL | 250 | 817 | - |
| Ildu Lepere MHP, LLC | Cedaredge, IL | 250 | 35 | - |
| Harvard Hills Water Corporation | Washington, IL | 250 | 45 | - |
| Legend Lakes Water Association | Roscoe, IL | 250 | 31 | - |
| Green Meadow Estates of Rockford LLC | Knoxville, IL | 250 | 285 | - |
| El Paso Golf Club | El Paso, IL | 250 | 23 | - |
| Rolling Oaks Office Well | Sheridan, IL | 250 | 40 | - |
| Camp Manitoumi | Lowpoint, IL | 250 | 24 | - |
| Morrison Rockwood St Park -Campground | Morrison, IL | 250 | 8 | - |