Public Water Systems
10,988 active water systems in WI.
| System Name | Location | Population | Violations | PFAS |
|---|---|---|---|---|
| MONTREAL WATERWORKS | MONTREAL, WI | 887 | 766 | — |
| MILL CREEK ACADEMY | GRAND RAPIDS, WI | 886 | 2 | — |
| WI DOT REST AREA 106 JAMESTOWN | MADISON, WI | 880 | 60 | — |
| BIRON WATER UTILITY | WISCONSIN RAPIDS, WI | 879 | 38 | — |
| ARENA WATERWORKS | ARENA, WI | 877 | 34 | Clean |
| MILLGATE GENERAL STORE | ROCHESTER, WI | 875 | 0 | — |
| GENERAC POWER SYSTEMS INC | WAUKESHA, WI | 875 | 8 | — |
| BRANDON WATERWORKS | BRANDON, WI | 872 | 35 | — |
| T&S BUSS INC | SULLIVAN, WI | 864 | 0 | — |
| ALLENTON SANITARY DISTRICT | ALLENTON, WI | 860 | 47 | — |
| ST ANDREW LUTHERAN CHURCH & WESTSIDE CHRISTIAN SCHOOL | MIDDLETON, WI | 850 | 169 | — |
| HILLCREST ESTATES MHP | SAN FRANCISCO, WI | 850 | 46 | — |
| MCDONALDS RESTAURANT POYNETTE | POYNETTE, WI | 845 | 237 | — |
| NECEDAH WATERWORKS | Necedah, WI | 844 | 42 | — |
| HIGHLAND WATERWORKS | HIGHLAND, WI | 842 | 28 | — |
| DORCHESTER WATERWORKS | Dorchester, WI | 834 | 4 | — |
| BIRNAMWOOD WATERWORKS | BIRNAMWOOD, WI | 832 | 59 | — |
| LAKE DENOON MIDDLE SCHOOL | MUSKEGO, WI | 825 | 35 | — |
| ARLINGTON WATERWORKS | ARLINGTON, WI | 823 | 50 | — |
| ARGYLE WATERWORKS | ARGYLE, WI | 823 | 16 | — |
| DISCALCED CARMELITES & HOLY HILL CAFE | HUBERTUS, WI | 823 | 12 | — |
| AMERICAN PLAYERS THEATRE -GATEWAY | Spring Green, WI | 821 | 6 | — |
| BURGER KING | DOWNERS GROVE, WI | 820 | 38 | — |
| KWIK TRIP | CEDARBURG, WI | 817 | 0 | — |
| FOOTVILLE WATERWORKS | FOOTVILLE, WI | 816 | 37 | — |
| PEPIN WATERWORKS | Pepin, WI | 816 | 70 | — |
| CELEBRATIONS ON THE RIVER | LA CROSSE, WI | 815 | 5 | — |
| AMERICAN PLAYERS THEATRE PATRON | Spring Green, WI | 810 | 0 | — |
| BLANCHARDVILLE WATERWORKS | BLANCHARDVILLE, WI | 810 | 82 | — |
| NORTHPOINT PLAZA BP | POYNETTE, WI | 809 | 8 | — |
| PIONEER PLAZA | RICHFIELD, WI | 808 | 1 | — |
| CONCORD GENERAL STORE | OCONOMOWOC, WI | 807 | 4 | — |
| WESTPORT WATER UTILITY | WAUNAKEE, WI | 800 | 17 | — |
| SALEM GRADE SCHOOL NORTH WELL | SALEM, WI | 800 | 262 | — |
| WI DOT REST AREA 36 LAFAYETTE | MADISON, WI | 800 | 9 | — |
| WI DOT REST AREA 35 LAFAYETTE | MADISON, WI | 800 | 1 | — |
| BATEMAN EXPRESS MART | CHIPPEWA FALLS, WI | 800 | 6 | — |
| MELROSE MINDORO UNITED CAMPUS | MELROSE, WI | 800 | 133 | — |
| WI DNR WILLOW RIVER CMPGD - 300 | MADISON, WI | 800 | 0 | — |
| HOLY FAMILY CATHOLIC CHURCH | EDGAR, WI | 800 | 0 | — |
| PITTSVILLE WATERWORKS | PITTSVILLE, WI | 800 | 147 | — |
| ELMWOOD WATERWORKS | ELMWOOD, WI | 798 | 77 | — |
| WI DNR GOV NELSON 3 OFFICE & SHOP | WAUNAKEE, WI | 795 | 25 | — |
| STODDARD WATERWORKS | Stoddard, WI | 793 | 148 | — |
| PLAIN WATERWORKS | PLAIN, WI | 792 | 19 | — |
| FRIENDSHIP WATERWORKS | FRIENDSHIP, WI | 781 | 42 | — |
| WI HEIGHTS HIGH SCHOOL | MAZOMANIE, WI | 780 | 14 | — |
| CASSVILLE WATERWORKS | CASSVILLE, WI | 777 | 13 | — |
| ALMA WATERWORKS | Alma, WI | 769 | 39 | — |
| WYOCENA WATERWORKS | WYOCENA, WI | 768 | 16 | — |