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 |
| Cedarville Baptist Church | Cedarville, IL | 27 | 2 | - |
| Lake Co Fp Thunderhawk Golf Course | Waukegan, IL | 27 | 0 | - |
| Alfano's Frozen Pizza | Ottawa, IL | 27 | 15 | - |
| West of Wise Winery | Petersburg, IL | 27 | 7 | - |
| Dollar General Wonder Lake | Wonder Lake, IL | 27 | 0 | - |
| Anna-Jonesboro Water Commission | Jonesboro, IL | 26 | 13 | - |
| Hills Country Store | Kaneville, IL | 26 | 17 | - |
| Loud Thunder East Side Well | Illinois City, IL | 26 | 15 | - |
| Cougar Campground | Peoria, IL | 26 | 22 | - |
| Fiber Tex-Non Woven Solutions | Ingleside, IL | 26 | 874 | - |
| Jewel/Osco Vending Machine Nbo | Vista, IL | 26 | 0 | - |
| Village of Kildeer | Waukegan, IL | 26 | 2 | - |
| Cabin Fever Campground | Victoria, IL | 26 | 32 | - |
| Camp Manitoqua Well 2 | Frankfort, IL | 26 | 7 | - |
| Dickson Valley Camp Gym | Newark, IL | 26 | 1 | - |
| Dickson Valley Camp Dining Hall | Newark, IL | 26 | 1 | - |
| Jewel 3053 Palos Heights | Vista, IL | 26 | 0 | - |
| J M Huber Well 2 | Quincy, IL | 26 | 595 | - |
| Bluestem Farm and Events | Hebron, IL | 26 | 2 | - |
| American Legion Post #445 | Bradford, IL | 26 | 0 | - |
| Mid-Mark Water Commission | Markham, IL | 25 | 0 | - |
| Lisbon North, Inc. | Morris, IL | 25 | 173 | - |
| United Regional Water Coop | Dieterich, IL | 25 | 8 | - |
| Busy Bee MHP #1 | Lemont, IL | 25 | 38 | - |
| Crab Orchard Refuge | Marion, IL | 25 | 99 | - |
| Antioch Motel | Antioch, IL | 25 | 7 | - |
| Sandy Oaks Cmpgrnd/Dale Garner | Keithsburg, IL | 25 | 55 | - |
| Tall Oaks Country Club | Toluca, IL | 25 | 28 | - |
| Youngs Lake | Kirkwood, IL | 25 | 52 | - |
| Hickory Grove Lake Company | Monmouth, IL | 25 | 54 | - |
| Timber Ridge Golf Club | Lacon, IL | 25 | 27 | - |
| Peoria Sportsmens Club | Peoria, IL | 25 | 71 | - |
| Hickory Grove Campground | Princeton, IL | 25 | 36 | - |
| Millstadt Sportsmans Club | Millstadt, IL | 25 | 13 | - |
| Quail Restoration Association | Belleville, IL | 25 | 8 | - |
| Macqueen Forest Preserve-Lodge | Sycamore, IL | 25 | 7 | - |
| Alton Woodriver Sportsmans Clb | Godfrey, IL | 25 | 5 | - |
| Tri-County Country Club | Carthage, IL | 25 | 33 | - |
| Hickory Lane Camping | Atlanta, IL | 25 | 24 | - |
| Lincoln Trail Family Campground | Springfield, IL | 25 | 91 | - |
| Springfield KOA Kampground Inc | Rochester, IL | 25 | 25 | - |
| Camp-A-While | Lincoln, IL | 25 | 44 | - |
| Evening Star Camping Resort(3608) | Topeka, IL | 25 | 83 | - |
| Sand Ridge State Forest Head Qtr #1 | Forest City, IL | 25 | 39 | - |
| Starlite Campers | Pittsfield, IL | 25 | 19 | - |
| Camp Greshiem Christian Retrea | Hartsburg, IL | 25 | 40 | - |
| Evening Star Camping Resort (4150) | Topeka, IL | 25 | 22 | - |
| Severson Dells Deer Lodge | Rockford, IL | 25 | 3 | - |
| Colored Sands Forest Preserve Bird Band | Rockford, IL | 25 | 1 | - |
| Walcamp Lutheran Retreat-Bathhouse South | Kingston, IL | 25 | 14 | - |