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 |
| Bear Paw Resort South Campground and Bar | Birchwood, WI | 25 | 0 | - |
| Eagle Lodge Resort Campground | Galena, WI | 25 | 0 | - |
| Moxi Lodge and Lounge | Winter, WI | 25 | 0 | - |
| Trap N Fish Lodge | Winter, WI | 25 | 25 | - |
| Jbs Moose Lake Shack | Hayward, WI | 25 | 0 | - |
| U S F S Black Lake Cmpgd | Hayward, WI | 25 | 0 | - |
| Somewhere Else | Hayward, WI | 25 | 5 | - |
| Wilderness Walk Zoo | Hayward, WI | 25 | 17 | - |
| Rock Castle Bar | Exeland, WI | 25 | 39 | - |
| Johnsons Resort Condominiums Catfish | Hayward, WI | 25 | 0 | - |
| City Limits Saloon | Hayward, WI | 25 | 34 | - |
| Nelson Lake Landing Tavern | Hayward, WI | 25 | 8 | - |
| Chippewa Inn | Hayward, WI | 25 | 18 | - |
| WI DNR Lake of the Pines Upper | Winter, WI | 25 | 34 | - |
| WI DNR Lake of the Pines Lower | Winter, WI | 25 | 27 | - |
| North Star Resort RV Camp | Birchwood, WI | 25 | 0 | - |
| Red School Resort Main | Birchwood, WI | 25 | 0 | - |
| Sand Lake Pines | Stone Lake, WI | 25 | 27 | - |
| Rustic Lodge The | Winter, WI | 25 | 6 | - |
| Rustic Lodge and Campground The | Winter, WI | 25 | 6 | - |
| Nelson Lake Landing Motel | Hayward, WI | 25 | 1 | - |
| Sunrise Bay Upper | Hayward, WI | 25 | 6 | - |
| Hayward KOA | Hayward, WI | 25 | 35 | - |
| Wheel Inn | Hayward, WI | 25 | 8 | - |
| Tavern at White Stag Farm | Hayward, WI | 25 | 35 | - |
| Rusty Hook Saloon and Smoke House | Hayward, WI | 25 | 16 | - |
| Oxbo Resort | Park Falls, WI | 25 | 47 | - |
| Flambeau Forest Inn | Winter, WI | 25 | 0 | - |
| Ojibwa Park | Ojibwa, WI | 25 | 19 | - |
| WI DNR Connors Lake Cmpgd | Winter, WI | 25 | 54 | - |
| Riverside Lanes | Hayward, WI | 25 | 6 | - |
| Phipps Tavern | Hayward, WI | 25 | 36 | - |
| Lost Land Lake Lodge | Hayward, WI | 25 | 18 | - |
| Musky Run Resort | Hayward, WI | 25 | 0 | - |
| Park Island Lake Resort 1 | Hayward, WI | 25 | 18 | - |
| Revelles Landing Ltd Large Well Shower House and RV | Hayward, WI | 25 | 2 | - |
| Norse Woods Cabins | Winter, WI | 25 | 11 | - |
| Tiger Musky Resort Seasonal Trailer Park 1 | Couderay, WI | 25 | 14 | - |
| Big Musky Resort Tavern | Colfax, WI | 25 | 64 | - |
| Boulevard The | Hayward, WI | 25 | 0 | - |
| Hayward Airport | Hayward, WI | 25 | 2 | - |
| Louies Landing Resort Inc | Hayward, WI | 25 | 9 | - |
| R and R Bayview Resort | Hayward, WI | 25 | 0 | - |
| Bernies | Hayward, WI | 25 | 32 | - |
| Virgin Timber Resort Tavern | Hayward, WI | 25 | 36 | - |
| Loretta Steakhouse | Loretta, WI | 25 | 39 | - |
| Spider Lake Church Hayward Campus | Hayward, WI | 25 | 65 | - |
| WI DNR Connors Lake Picnic Area Well | Winter, WI | 25 | 31 | - |
| Fred Thomas Resort Drilled Well | Birchwood, WI | 25 | 0 | - |
| Musky Tale Resort | Hayward, WI | 25 | 21 | - |