Public Water Systems
10,988 active public water systems in WI, tracked from EPA's Safe Drinking Water Information System (SDWIS) across all 50 states. See our methodology.
| System Name | Location | Population | Violations | PFAS |
| Dodge Co Astico Park North Artesian Well | Juneau, WI | 102 | 2 | - |
| Dodge Co Astico Park South Artesian Well | Juneau, WI | 102 | 2 | - |
| Dodge Co Astico Park Shower Building Water Station | Juneau, WI | 102 | 0 | - |
| Get Fit Health Club | Beaver Dam, WI | 102 | 0 | - |
| Ixonia Pub | Ixonia, WI | 102 | 15 | - |
| Kroghville Oasis | Waterloo, WI | 102 | 3 | - |
| Creekwood Cage Free | Lake Mills, WI | 102 | 4 | - |
| Roelli Cheese Company | Shullsburg, WI | 102 | 16 | - |
| Edgewater Golf Club | Grafton, WI | 102 | 9 | - |
| Hamilton Haus Tavern | Cedarburg, WI | 102 | 13 | - |
| First Congregational Church | Rochester, WI | 102 | 8 | - |
| Shooters | Burlington, WI | 102 | 34 | - |
| Ccs Place | Allenton, WI | 102 | 26 | - |
| Noeys Pub & Grill | Hartford, WI | 102 | 44 | - |
| The Drinking Well | Hartford, WI | 102 | 6 | - |
| Free Methodist Church | New Berlin, WI | 102 | 9 | - |
| Wonderland Tap | Waukesha, WI | 102 | 10 | - |
| Old World Wisconsin Finnish W 5 | Eagle, WI | 102 | 55 | - |
| Old World Wisconsin German Well 3 | Eagle, WI | 102 | 39 | - |
| New Vision Bretheren in Christ Church | Pewaukee, WI | 102 | 6 | - |
| St Michaels Anglican Church | Delafield, WI | 102 | 7 | - |
| Jacks Pantry Cafe | Waukesha, WI | 102 | 2 | - |
| Old World Wisconsin Caldwell Farmers W13 | Eagle, WI | 102 | 62 | - |
| Cupcake Bakery | Eagle, WI | 102 | 11 | - |
| Old World Wisconsin Danish Main W14 | Eagle, WI | 102 | 4 | - |
| Grace Hill Church | Merton, WI | 102 | 0 | - |
| Washington Island Red Barn Theater Park | Washington Island, WI | 102 | 8 | - |
| Lake Ripley Country Club - Course System | Cambridge, WI | 102 | 0 | - |
| Milwaukee Country Club Tennis Building | Milwaukee, WI | 102 | 4 | - |
| St Paul Lutheran Ch Elca | Sturgeon Bay, WI | 102 | 13 | - |
| Ephraim Yacht Harbor Dock | Ephraim, WI | 102 | 25 | - |
| WI DNR Pen Weborg Pt | Madison, WI | 102 | 5 | - |
| Ephraim Beach Park | Ephraim, WI | 102 | 13 | - |
| Homestead Suites | Fish Creek, WI | 102 | 9 | - |
| Columbia Park Restrooms | Fond Du Lac, WI | 102 | 0 | - |
| Turning Rivers-Lodge | Madison, WI | 102 | 27 | - |
| Turning Rivers-Cottages | Madison, WI | 102 | 4 | - |
| Immanuel United Church of Christ | Plymouth, WI | 102 | 18 | - |
| Dakota Capital Mhc LLC | Green Lake, WI | 102 | 71 | - |
| Sunrise Orchards at Hillcrest | Gay Mills, WI | 102 | 0 | - |
| Gordons Bay Mobile Home Court | Grinnell, WI | 102 | 37 | - |
| Blue Lake Community LLC | Oxford, WI | 102 | 3 | - |
| Northwood Community Elementary School | Rhinelander, WI | 102 | 19 | - |
| Grace Baptist Church | Iron River, WI | 102 | 0 | - |
| Hooked at Outboards Bar & Grill | Gilman, WI | 102 | 0 | - |
| Vermont Lutheran Rec Center | Black Earth, WI | 101 | 0 | - |
| Calvary Baptist Ch | Platteville, WI | 101 | 16 | - |
| Motor Boatn Bar and Grill | Fennimore, WI | 101 | 88 | - |
| Bitzs Outer Limits | Fort Atkinson, WI | 101 | 0 | - |
| Belmont Sales Barn Rls LLC | Belmont, WI | 101 | 66 | - |