Public Water Systems
10,988 active water systems in WI.
| System Name | Location | Population | Violations | PFAS |
|---|---|---|---|---|
| TRINITY LUTHERAN CH | HOWARDS GROVE, WI | 550 | 6 | — |
| HATLEY WATERWORKS | Hatley, WI | 550 | 259 | — |
| PHELPS SANITARY DISTRICT | Phelps, WI | 550 | 136 | — |
| NEW AUBURN WATERWORKS | NEW AUBURN, WI | 549 | 174 | — |
| LINDEN WATERWORKS | LINDEN, WI | 547 | 23 | — |
| ABUNDANT LIFE APOSTOLIC CHURCH | OCONOMOWOC, WI | 543 | 114 | — |
| FARM & FLEET OF DODGEVILLE | JANESVILLE, WI | 540 | 39 | — |
| SECTION ELEMENTARY SCHOOL | MUKWONAGO, WI | 540 | 8 | — |
| ST PAUL LUTHERAN EARLY CHILDHOOD CENTER & CHURCH | SHEBOYGAN FALLS, WI | 540 | 18 | — |
| BOYD WATERWORKS | BOYD, WI | 540 | 39 | — |
| WARRENS WATERWORKS | WARRENS, WI | 540 | 75 | — |
| WI DNR CRYSTAL LK SHOWER | BOULDER JUNCTION, WI | 540 | 8 | — |
| ETTRICK WATERWORKS | Ettrick, WI | 536 | 21 | — |
| DEVILS HEAD RESORT | MERRIMAC, WI | 535 | 109 | — |
| BURGER KING WESTFIELD | SUN PRAIRIE, WI | 535 | 103 | — |
| GRESHAM WATERWORKS | GRESHAM, WI | 534 | 236 | — |
| EDGERTON I90 TRAVEL PLAZA | EDGERTON, WI | 533 | 328 | — |
| RICHMOND SCHOOL | SUSSEX, WI | 533 | 5 | — |
| MOORLAND GOLF CENTER | NEW BERLIN, WI | 533 | 0 | — |
| MERRILLAN WATERWORKS | MERRILLAN, WI | 531 | 112 | — |
| SPACIOUS ACRES MOBILE HOME COMMUNITY | MENOMONIE FALLS, WI | 525 | 8 | — |
| NORTH CRAWFORD SCHOOL | SOLDIERS GROVE, WI | 525 | 37 | — |
| WI DNR COUNCIL GRNDS ENTRANCE OFFICE | MERRILL, WI | 525 | 40 | — |
| MELROSE WATERWORKS | MELROSE, WI | 524 | 22 | — |
| COUNTRY DALE SCHOOL | FRANKLIN, WI | 523 | 19 | — |
| AMY BELLE SCHOOL | GERMANTOWN, WI | 522 | 36 | — |
| CARLS SHELL/TACO JOHNS | Edgerton, WI | 520 | 18 | — |
| CAPITOL CAFE | BROOKFIELD, WI | 520 | 0 | — |
| J J KELLER VINLAND PLANT | NEENAH, WI | 520 | 4 | — |
| ST CROIX NATL GOLF COURSE | Somerset, WI | 520 | 0 | — |
| CHINA ONE | RIPON, WI | 517 | 0 | — |
| PLYMOUTH ROCK RESORT POOL 1 | CHICAGO, WI | 516 | 9 | — |
| PLYMOUTH ROCK RESORT MAIN WELL | CHICAGO, WI | 516 | 12 | — |
| PLYMOUTH ROCK RESORT POOL 3 | CHICAGO, WI | 516 | 0 | — |
| PLYMOUTH ROCK RESORT POOL 2 | CHICAGO, WI | 516 | 12 | — |
| PLYMOUTH ROCK RESORT 600 AREA WELL | CHICAGO, WI | 516 | 0 | — |
| ADDISON ELEMENTARY SCHOOL | SLINGER, WI | 515 | 6 | — |
| HOPE LAKE COUNTRY CHURCH | DELAFIELD, WI | 511 | 0 | — |
| ST FRANCIS BORGIA CATHOLIC CHURCH | CEDARBURG, WI | 510 | 0 | — |
| WAYNES DRIVE-IN | THIENSVILLE, WI | 510 | 0 | — |
| SUNBURST SKI AREA - MAINT SHOP | KEWASKUM, WI | 510 | 6 | — |
| LAKEVIEW MART | FOND DU LAC, WI | 510 | 36 | — |
| ADELL WATERWORKS | ADELL, WI | 510 | 202 | — |
| CLARK CO HEALTH CARE CENTER | Owen, WI | 510 | 136 | — |
| EMANUEL BNE JESHRUN CENTER | RIVER HILLS, WI | 509 | 38 | — |
| MT ZION CHRISTIAN CHURCH | LAKE GENEVA, WI | 509 | 434 | Detected |
| ZION EV LUTHERAN CHURCH OF LEEDS | ARLINGTON, WI | 507 | 17 | — |
| BIG BEND ELEMENTARY SCHOOL | MUKWONAGO, WI | 507 | 72 | — |
| LAZY DAYS AREA C & LOWER D | WEST BEND, WI | 506 | 3 | — |
| WITHEE WATERWORKS | WITHEE, WI | 506 | 97 | — |