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 |
| Annies Trading Post | Florence, WI | 25 | 22 | - |
| Northern Lites | Florence, WI | 25 | 33 | - |
| Roadhouse 139 | Long Lake, WI | 25 | 20 | - |
| Fay Lake Resort | Long Lake, WI | 25 | 6 | - |
| Florence Co West Bass Lk Pk Pic | Florence, WI | 25 | 16 | - |
| Florence Co West Bass Lk Pk Camp | Florence, WI | 25 | 17 | - |
| Whitetail Inn Bar | Tipler, WI | 25 | 50 | - |
| Sachs Rendezvous Bar | Tipler, WI | 25 | 40 | - |
| Merks Knotheads Bar | Tipler, WI | 25 | 4 | - |
| Whos Next | Niagara, WI | 25 | 14 | - |
| Florence Co Keyes Lake Park | Florence, WI | 25 | 9 | - |
| U S F S Lost Lk Ycc Envrmtl F12 | Eagle River, WI | 25 | 24 | - |
| Bartolettis Supper Club | Niagara, WI | 25 | 14 | - |
| Scout Lake Public Access | Florence, WI | 25 | 24 | - |
| Saloon No 2 in Spread Eagle WI | Florence, WI | 25 | 68 | - |
| Keyes Lake Campground | Florence, WI | 25 | 6 | - |
| Fay Lake Resort South Well | Long Lake, WI | 25 | 0 | - |
| WI DNR Kmsfnu Zillmer Trail | Madison, WI | 25 | 17 | - |
| Marytown Community Athletic Club | New Holstein, WI | 25 | 0 | - |
| Sun Retreats Fond Du Lac East Tumbleweed Flats | Glenbeulah, WI | 25 | 0 | - |
| Fond Du Lac Co Park Waupun Campsites | Fond Du Lac, WI | 25 | 5 | - |
| Marytown Tap | New Holstein, WI | 25 | 0 | - |
| Rosendale Village Bldg | Rosendale, WI | 25 | 0 | - |
| Ridge Road Church | Eldorado, WI | 25 | 0 | - |
| Sun Retreats Fond Du Lac East Buffalo Plains | Glenbeulah, WI | 25 | 0 | - |
| Eden Community Park - Reagan Dr | Eden, WI | 25 | 29 | - |
| Camp Shaginappi 1 | Fond Du Lac, WI | 25 | 0 | - |
| Jps 4 Mile House | Byron, WI | 25 | 8 | - |
| Bahr Time | Campbellsport, WI | 25 | 12 | - |
| Amity School | Waupun, WI | 25 | 19 | - |
| New Fane Sportsman's Club | Kewaskum, WI | 25 | 11 | - |
| Schmitty's Bar & Grill | Fond Du Lac, WI | 25 | 0 | - |
| East Shore Conservation Club | Malone, WI | 25 | 30 | - |
| Riverside Hunting & Fishing Club | Mount Calvary, WI | 25 | 7 | - |
| WI DNR Kmsfnu Ice Age Ctr | Madison, WI | 25 | 39 | - |
| Roosevelt County Park | Fond Du Lac, WI | 25 | 7 | - |
| WI DNR Kmsfnu New Fane | Madison, WI | 25 | 35 | - |
| Eden Fire Dept Community Bldg | Eden, WI | 25 | 0 | - |
| Marsh Haven Nature Center Inc | Waupun, WI | 25 | 26 | - |
| Eden Firemens Assoc Park | Eden, WI | 25 | 0 | - |
| Triple T Artesian | Mt Calvary, WI | 25 | 5 | - |
| Station Taycheedah & Eden Grill | Fond Du Lac, WI | 25 | 0 | - |
| Kelley Country Creamery LLC | Fond Du Lac, WI | 25 | 0 | - |
| Riggs County Park | Fond Du Lac, WI | 25 | 0 | - |
| Dundee Sportsmens Club | Campbellsport, WI | 25 | 0 | - |
| Riesterer & Schnell Campbellsport | Chilton, WI | 25 | 0 | - |
| Fond Du Lac Stone Ops Bldg | Fond Du Lac, WI | 25 | 5 | - |
| Breezy Hill Barn Well | Fond Du Lac, WI | 25 | 4 | - |
| Little Farmer, The | Malone, WI | 25 | 0 | - |
| Breezy Hill Campground Well #2 East | Fond Du Lac, WI | 25 | 15 | - |