Public Water Systems
10,988 active water systems in WI.
| System Name | Location | Population | Violations | PFAS |
|---|---|---|---|---|
| RICE LAKE WATERWORKS | RICE LAKE, WI | 9,012 | 133 | Detected |
| PLYMOUTH UTILITIES | PLYMOUTH, WI | 8,964 | 127 | Clean |
| PEWAUKEE CITY WATER AND SEWER UTILITY | PEWAUKEE, WI | 8,671 | 467 | Detected |
| MONONA WATERWORKS | MONONA, WI | 8,624 | 30 | Detected |
| DELAVAN WATERWORKS | DELAVAN, WI | 8,451 | 88 | Clean |
| RHINELANDER WATER & WASTEWATER | RHINELANDER, WI | 8,234 | 333 | Detected |
| MUKWONAGO WATERWORKS | MUKWONAGO, WI | 8,190 | 284 | Clean |
| PEWAUKEE VILLAGE WATERWORKS | PEWAUKEE, WI | 8,166 | 175 | Clean |
| SHEBOYGAN FALLS UTILITIES | SHEBOYGAN FALLS, WI | 8,165 | 28 | Clean |
| MUSKEGO WATER UTILITY | MUSKEGO, WI | 8,150 | 108 | Detected |
| WAUPUN UTILITIES | WAUPUN, WI | 8,056 | 22 | Clean |
| ASHLAND WATER UTILITY | ASHLAND, WI | 8,000 | 252 | Clean |
| JEFFERSON WATERWORKS | JEFFERSON, WI | 7,926 | 61 | Clean |
| JACKSON WATERWORKS | JACKSON, WI | 7,844 | 20 | Detected |
| ANTIGO WATERWORKS | Antigo, WI | 7,780 | 28 | Clean |
| MT HOREB WATERWORKS | MOUNT HOREB, WI | 7,756 | 182 | Detected |
| RIPON WATER UTILITY | RIPON, WI | 7,716 | 11 | Clean |
| KIMBERLY WATERWORKS | KIMBERLY, WI | 7,608 | 44 | Detected |
| LEDGEVIEW TN SANITARY DIST 2 | DE PERE, WI | 7,602 | 160 | Detected |
| NEW LONDON WATERWORKS | NEW LONDON, WI | 7,187 | 447 | Detected |
| LAKE GENEVA UTILITY COMMISSION | Lake Geneva, WI | 7,107 | 182 | Detected |
| KRONENWETTER WATER & SEWER UTILITY | KRONENWETTER, WI | 6,931 | 16 | Clean |
| FOX POINT WATERWORKS | FOX POINT, WI | 6,808 | 10 | Clean |
| LAKE HALLIE WATERWORKS VILLAGE OF | LAKE HALLIE, WI | 6,701 | 61 | Clean |
| TOWN OF BROOKFIELD SAN DIST 4 | BROOKFIELD, WI | 6,419 | 216 | Detected |
| RIB MOUNTAIN WATER UTILITY | WAUSAU, WI | 6,398 | 10 | Detected |
| LAKE MILLS WATERWORKS | LAKE MILLS, WI | 6,211 | 159 | Clean |
| WAUPACA WATERWORKS | WAUPACA, WI | 6,062 | 41 | Detected |
| PRAIRIE DU CHIEN WATERWORKS | PRAIRIE DU CHIEN, WI | 6,005 | 89 | Detected |
| EVANSVILLE WATERWORKS | EVANSVILLE, WI | 5,703 | 83 | Clean |
| SLINGER WATER UTILITY | Slinger, WI | 5,659 | 29 | Detected |
| MILTON WATERWORKS | MILTON, WI | 5,588 | 86 | Clean |
| BERLIN WATERWORKS | BERLIN, WI | 5,524 | 86 | Clean |
| EDGERTON WATERWORKS | EDGERTON, WI | 5,512 | 51 | Clean |
| HARRISON UTILITIES - FKA WAVERLY SD | MENASHA, WI | 5,500 | 25 | Detected |
| HO CHUNK CASINO | BLACK RIVER FALLS, WI | 5,486 | 0 | Clean |
| LAWRENCE WATERWORKS | DE PERE, WI | 5,398 | 90 | Clean |
| WATERFORD WATERWORKS | WATERFORD, WI | 5,368 | 356 | Detected |
| COLUMBUS UTILITIES | COLUMBUS, WI | 5,173 | 151 | Clean |
| MAYVILLE WATERWORKS | MAYVILLE, WI | 5,112 | 60 | Detected |
| RICHLAND CENTER WATERWORKS | RICHLAND CENTER, WI | 5,100 | 10 | Clean |
| EAST TROY WATERWORKS | EAST TROY, WI | 5,054 | 91 | Detected |
| WEST SALEM WATERWORKS | WEST SALEM, WI | 5,045 | 15 | Clean |
| NORTH FOND DU LAC WATERWORKS | NORTH FOND DU LAC, WI | 5,014 | 86 | Detected |
| SHAWANO LK SAN DIST 1 | SHAWANO, WI | 4,950 | 19 | Detected |
| UNION GROVE WATERWORKS | UNION GROVE, WI | 4,900 | 71 | Detected |
| SUAMICO WATERWORKS | SUAMICO, WI | 4,697 | 25 | Detected |
| CLINTONVILLE UTILITIES | CLINTONVILLE, WI | 4,635 | 228 | Clean |
| OCONTO WATERWORKS | OCONTO, WI | 4,610 | 33 | Detected |
| WINDSOR WATER UTILITY SOUTH | WINDSOR, WI | 4,607 | 16 | — |