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 |
|---|---|---|---|---|
| Kwik Trip #1013 | La Crosse, WI | 2,253 | 4 | - |
| Geneva National Community Services | Lake Geneva, WI | 2,250 | 115 | - |
| Darlington Waterworks | Darlington, WI | 2,235 | 45 | - |
| Cedar Grove Waterworks | Cedar Grove, WI | 2,213 | 84 | - |
| Schofield Waterworks | Schofield, WI | 2,205 | 47 | Detected |
| WI DOT Rest Area 54 Westbound | Madison, WI | 2,200 | 17 | - |
| Butler Waterworks | Butler, WI | 2,181 | 61 | - |
| Pardeeville Waterworks | Pardeeville, WI | 2,151 | 58 | - |
| Cuba City Waterworks | Cuba City, WI | 2,141 | 31 | - |
| Clinton Waterworks | Clinton, WI | 2,119 | 221 | Clean |
| Prairie Village Water Trust | North Prairie, WI | 2,100 | 253 | - |
| WI DOT Rest Area 53 Eastbound | Madison, WI | 2,090 | 21 | - |
| St Croix Falls Waterworks | St. Croix Falls, WI | 2,079 | 6 | - |
| Loves Travel Stop - Sheboygan | Oklahoma City, WI | 2,070 | 12 | - |
| House on the Rock | Spring Green, WI | 2,025 | 69 | - |
| Redgranite Waterworks | Redgranite, WI | 2,019 | 20 | - |
| WI DOT Rest Area 10 Kildare | Madison, WI | 2,000 | 9 | - |
| WI DOT Rest Area 9 Lemonweir | Madison, WI | 2,000 | 24 | - |
| Crandon Waterworks | Crandon, WI | 1,958 | 33 | - |
| Harmony Grove San Dist | Lodi, WI | 1,950 | 25 | - |
| Eagle Waterworks | Eagle, WI | 1,950 | 253 | - |
| McDonalds Milw St | Poynette, WI | 1,940 | 114 | - |
| Chetek Waterworks | Chetek, WI | 1,931 | 623 | - |
| Somers Water Utility | Somers, WI | 1,930 | 107 | Clean |
| Wales Pick N Save | Milwaukee, WI | 1,900 | 51 | - |
| Trempealeau Waterworks | Trempealeau, WI | 1,888 | 281 | - |
| Hammond Waterworks | Hammond, WI | 1,884 | 33 | - |
| Scott Water Utility Dist | New Franken, WI | 1,875 | 31 | - |
| Roberts Waterworks | Roberts, WI | 1,872 | 8 | - |
| Durand Waterworks | Durand, WI | 1,868 | 4 | - |
| Port Edwards Water Utility | Port Edwards, WI | 1,866 | 130 | - |
| Weyauwega Waterworks | Weyauwega, WI | 1,856 | 204 | - |
| Fox Lake Correctional Institution | Madison, WI | 1,850 | 176 | - |
| Spencer Waterworks | Spencer, WI | 1,848 | 41 | - |
| Adams Waterworks | Adams, WI | 1,847 | 51 | - |
| Fontana Water Utility | Fontana, WI | 1,839 | 252 | - |
| Colby Waterworks | Colby, WI | 1,829 | 5 | - |
| Campbellsport Waterworks | Campbellsport, WI | 1,825 | 93 | - |
| Whitehall Waterworks | Whitehall, WI | 1,820 | 56 | - |
| Kwik Trip #1108 | La Crosse, WI | 1,810 | 0 | - |
| Wind Point Water Dept | Racine, WI | 1,804 | 97 | - |
| Randolph Water Dept | Randolph, WI | 1,800 | 202 | - |
| Menomonee Falls Ww - Groundwater | Menomonee Falls, WI | 1,796 | 271 | - |
| Fall River Waterworks | Fall River, WI | 1,793 | 15 | - |
| Cameron Waterworks | Cameron, WI | 1,787 | 54 | - |
| Palmyra Waterworks | Palmyra, WI | 1,756 | 57 | Detected |
| Mazomanie Waterworks | Mazomanie, WI | 1,744 | 28 | - |
| Whiting Waterworks | Stevens Point, WI | 1,743 | 17 | - |
| Osseo Waterworks | Osseo, WI | 1,701 | 27 | - |
| Marathon City Waterworks | Marathon City, WI | 1,695 | 27 | - |