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 |
| Whispering Lakes Clubhouse | Waukegan, IL | 30 | 0 | - |
| Tony's Finer Foods | Vista, IL | 30 | 0 | - |
| Trailside Enterprises Inc | Lanark, IL | 30 | 15 | - |
| Frankfort Fire Station 3 | Frankfort, IL | 30 | 2 | - |
| Moonlight Bay Campground | Sterling, IL | 30 | 15 | - |
| Rockfor Rotary Forest Preserve | Rockford, IL | 30 | 2 | - |
| River Ridge School | Hanover, IL | 30 | 594 | - |
| Pollo Velez Carbonico | Joliet, IL | 30 | 10 | - |
| Ro Pros Water Store | Ottawa, IL | 30 | 7 | - |
| Jimbo's Parkway Inn | Bourbonnais, IL | 30 | 2 | - |
| Pioneer HI-Bred Intl Research | Princeton, IL | 30 | 182 | - |
| Walmart Supercenter 1307 | Winston-Salem, IL | 30 | 0 | - |
| Walmart Supercenter 201 | Belleville, IL | 30 | 0 | - |
| County Market 223 | Centerville, IL | 30 | 4 | - |
| Jewel Osco 3190 Wa493 Plainfield | Vista, IL | 30 | 0 | - |
| Walmart Wa467 Joliet | Winston-Salem, IL | 30 | 0 | - |
| Riggsby Companies LLC | Huntley, IL | 30 | 3 | - |
| McCd N Branch Cons Area | Woodstock, IL | 30 | 4 | - |
| Centrel IL Precision Shooting | Bloomington, IL | 30 | 0 | - |
| Islamic Center of Western Suburbs | West Chicago, IL | 30 | 10 | - |
| Arntzen Corporation | Woodstock, IL | 30 | 52 | - |
| Twice the Ice Smithton | Belleville, IL | 30 | 0 | - |
| Evening Star Camping Resort | Topeka, IL | 30 | 3 | - |
| Wedron Silica Pit Building | Wedron, IL | 30 | 20 | - |
| Illinois Turner Camp - Northeast Well | Algonquin, IL | 30 | 4 | - |
| Illinois Turner Camp - Main Well | Algonquin, IL | 30 | 6 | - |
| DC Estate Winery - Production | South Beloit, IL | 30 | 13 | - |
| Illinois Turner Camp - Athletic Field | Algonquin, IL | 30 | 2 | - |
| Benchwarmers East | Freeport, IL | 30 | 4 | - |
| Beardstown Marina Campsite | Beardstown, IL | 30 | 4 | - |
| Port of Blarney Campground | Antioch, IL | 30 | 14 | - |
| Port of Blarney Campground (the Cove) | Antioch, IL | 30 | 28 | - |
| Fiesta Market | Centerville, IL | 30 | 2 | - |
| Triple 7 Gaming & Lounge | Lake in the Hills, IL | 30 | 0 | - |
| Zutat Feed Solutions | Chatsworth, IL | 30 | 275 | - |
| I-55 RV Park | Fairview Heights, IL | 30 | 8 | - |
| Brookhill Golf Course | Rantoul, IL | 30 | 0 | - |
| Bloomington Meats | Bloomington, IL | 30 | 0 | - |
| Prairie Fruits Farm | Champaign, IL | 30 | 0 | - |
| Nussbaum Transportation Well #3 | Downs, IL | 30 | 0 | - |
| Twice the Ice Arthur | Arthur, IL | 30 | 0 | - |
| Kilgus Farmstead | Fairbury, IL | 30 | 0 | - |
| Ridott Corners Tap | Ridott, IL | 29 | 20 | - |
| Wedron Silica Sand Company | Wedron, IL | 29 | 273 | - |
| Wolf Hollow Golf Course | Lena, IL | 29 | 11 | - |
| Jewel Food Store #19083 | Vista, IL | 28 | 2 | - |
| Catlin Park Bath House | Ottawa, IL | 28 | 0 | - |
| Big O'S on the Hollow | Freeport, IL | 27 | 6 | - |
| Freeport Mennonite Church | Freeport, IL | 27 | 2 | - |
| By the Way Motel | Waukegan, IL | 27 | 7 | - |