Public Water Systems
10,988 active water systems in WI.
| System Name | Location | Population | Violations | PFAS |
|---|---|---|---|---|
| SHEBOYGAN TN WATERWORKS | SHEBOYGAN, WI | 4,596 | 8 | Detected |
| DODGEVILLE WATERWORKS | DODGEVILLE, WI | 4,583 | 17 | Clean |
| MAUSTON WATERWORKS | MAUSTON, WI | 4,456 | 17 | Clean |
| BALDWIN WATERWORKS | BALDWIN, WI | 4,440 | 19 | Clean |
| VIROQUA WATERWORKS | VIROQUA, WI | 4,362 | 31 | Clean |
| MEDFORD WATERWORKS | MEDFORD, WI | 4,318 | 256 | Detected |
| KEWASKUM WATERWORKS | KEWASKUM, WI | 4,309 | 137 | Detected |
| SAUKVILLE WATERWORKS | SAUKVILLE, WI | 4,268 | 4 | Detected |
| PRESCOTT WATERWORKS | Prescott, WI | 4,258 | 78 | Detected |
| CHILTON WATERWORKS | CHILTON, WI | 4,191 | 11 | Clean |
| CROSS PLAINS WATERWORKS | CROSS PLAINS, WI | 4,100 | 18 | Clean |
| BLOOMFIELD, VILLAGE OF | PELL LAKE, WI | 4,071 | 171 | Clean |
| PULASKI WATERWORKS | PULASKI, WI | 4,040 | 12 | Clean |
| PRAIRIE DU SAC WATERWORKS | PRAIRIE DU SAC, WI | 4,006 | 55 | Clean |
| ALGOMA TN SANITARY DIST 1 | OSHKOSH, WI | 3,935 | 0 | — |
| KIEL WATERWORKS | KIEL, WI | 3,932 | 36 | Clean |
| CABELAS - RICHFIELD | RICHFIELD, WI | 3,931 | 0 | Clean |
| YORKVILLE UTILITY DIST 1 | UNION GROVE, WI | 3,900 | 160 | Detected |
| LANCASTER WATERWORKS | LANCASTER, WI | 3,868 | 43 | Clean |
| MARSHALL WATERWORKS | MARSHALL, WI | 3,862 | 43 | Clean |
| WRIGHTSTOWN WATERWORKS | WRIGHTSTOWN, WI | 3,815 | 19 | — |
| ARCADIA WATERWORKS | Arcadia, WI | 3,737 | 47 | — |
| WAUPUN CORRECTIONAL INST | MADISON, WI | 3,706 | 58 | Clean |
| HORICON WATERWORKS | HORICON, WI | 3,682 | 64 | Clean |
| BLOOMER WATERWORKS | BLOOMER, WI | 3,680 | 147 | Clean |
| HOBART WATERWORKS S A 1 | HOBART, WI | 3,670 | 67 | — |
| OMRO WATERWORKS | OMRO, WI | 3,629 | 8 | Clean |
| COMBINED LOCKS WATERWORKS | COMBINED LOCKS, WI | 3,609 | 20 | Detected |
| BLACK RIVER FALLS WATERWORKS | Black River Falls, WI | 3,608 | 45 | Detected |
| SEYMOUR WATERWORKS | SEYMOUR, WI | 3,601 | 87 | Clean |
| WATERLOO WATERWORKS | WATERLOO, WI | 3,520 | 50 | Clean |
| SAUK CITY WATERWORKS | Sauk City, WI | 3,518 | 11 | Clean |
| STANLEY WATERWORKS | STANLEY, WI | 3,500 | 106 | Clean |
| BARRON LIGHT & WATER DEPT | BARRON, WI | 3,423 | 243 | Clean |
| PESHTIGO WATERWORKS | PESHTIGO, WI | 3,420 | 160 | Detected |
| MOSINEE WATERWORKS | Mosinee, WI | 3,406 | 28 | — |
| JOHNSON CREEK WATERWORKS | JOHNSON CREEK, WI | 3,318 | 121 | — |
| ELLSWORTH WATERWORKS | ELLSWORTH, WI | 3,304 | 40 | Detected |
| BRILLION WATERWORKS | BRILLION, WI | 3,262 | 24 | Clean |
| FREEDOM SANITARY DISTRICT | FREEDOM, WI | 3,260 | 21 | — |
| WI DOT REST AREA 12 DEKORRA WEST BOUND | MADISON, WI | 3,255 | 53 | — |
| BOSCOBEL WATERWORKS | BOSCOBEL, WI | 3,237 | 21 | — |
| WISCONSIN DELLS WATERWORKS | WISCONSIN DELLS, WI | 3,232 | 32 | — |
| ALGOMA WATERWORKS | ALGOMA, WI | 3,219 | 0 | — |
| BRODHEAD WATERWORKS | BRODHEAD, WI | 3,216 | 8 | — |
| WI DOT REST AREA 14 AZTALAN | MADISON, WI | 3,204 | 47 | — |
| ROTHSCHILD WATERWORKS | Rothschild, WI | 3,190 | 176 | — |
| LADYSMITH WATERWORKS | LADYSMITH, WI | 3,184 | 112 | — |
| TOMAHAWK WATERWORKS | Tomahawk, WI | 3,180 | 29 | Detected |
| LODI WATERWORKS | LODI, WI | 3,146 | 51 | — |