Water quality by city
Water quality in Wisconsin
EPA drinking-water records for 293 public water systems across 220 Wisconsin cities — the contaminants found and the certified filters that remove them. Pick your city for its full report.
Know your ZIP? Go straight to your water report.
Check by ZIP → Milwaukee 6 systems Brookfield ·PFAS 5 systems Stevens Point 5 systems Burlington 4 systems Green Bay 4 systems Kenosha 4 systems Appleton ·PFAS 3 systems Chippewa Falls 3 systems De Pere 3 systems Grafton 3 systems Madison 3 systems Neenah 3 systems Racine 3 systems Slinger ·PFAS 3 systems Altoona 2 systems Black River Falls ·PFAS 2 systems Cuba City 2 systems Dodge 2 systems Dousman 2 systems Hales Corners 2 systems Hayward ·PFAS 2 systems Hazel Green 2 systems Keshena 2 systems Laona 2 systems Marshfield ·PFAS 2 systems Menasha ·PFAS 2 systems Mequon 2 systems Milton 2 systems New London ·PFAS 2 systems Oshkosh 2 systems Palmyra ·PFAS 2 systems Pewaukee ·PFAS 2 systems Pleasant Prairie 2 systems Prairie Du Sac 2 systems Rhinelander ·PFAS 2 systems Richland Center 2 systems Shawano ·PFAS 2 systems Sheboygan ·PFAS 2 systems Sheboygan Falls 2 systems Somerset 2 systems Sparta 2 systems Superior 2 systems Twin Lakes 2 systems Union Grove 2 systems Walworth 2 systems Watertown 2 systems Wauwatosa 2 systems West Bend 2 systems Whitewater 2 systems Abbotsford 1 system Adell 1 system Antigo 1 system Ashland 1 system Ashwaubenon 1 system Athens 1 system Baldwin 1 system Baraboo 1 system Barron 1 system Beaver Dam 1 system Beloit 1 system Berlin 1 system Birchwood 1 system Bloomer 1 system Bristol 1 system Brown Deer 1 system Browntown 1 system Browsville 1 system Butternut 1 system Caledonia 1 system Cambridge 1 system Cameron 1 system Cazenovia 1 system Cedarburg 1 system Chilton 1 system Clintonville 1 system Cobb 1 system Colfax 1 system Combined Locks 1 system Cottage Grove 1 system Cross Plains 1 system Cudahy 1 system Danbury 1 system Darien 1 system Deforest 1 system Delavan 1 system Dickeyville 1 system Dodgeville 1 system East Troy ·PFAS 1 system Edgerton 1 system Elkhorn 1 system Ellsworth ·PFAS 1 system Embarrass 1 system Ettrick 1 system Evansville 1 system Fitchburg 1 system Fond Du Lac 1 system Fox Point 1 system Franklin 1 system Germantown 1 system Glen Flora 1 system Glendale 1 system Grand Chute 1 system Granton 1 system Greendale 1 system Greenville 1 system Hancock 1 system Hartford ·PFAS 1 system Hartland ·PFAS 1 system Hobart 1 system Horicon 1 system Hortonville 1 system Jackson 1 system Jefferson 1 system Johnson Creek 1 system Juneau 1 system Kendall 1 system Kewaskum ·PFAS 1 system Kiel 1 system Kimberly 1 system Kronenwetter 1 system Lac Du Flambeau ·PFAS 1 system Lake Mills 1 system Lancaster 1 system Land O Lakes 1 system Lavalle 1 system Lodi 1 system Lone Rock 1 system Lowell 1 system Malone 1 system Manitowoc 1 system Marinette 1 system Marshall 1 system Mauston 1 system Mayville 1 system Mcfarland ·PFAS 1 system Menomonee Falls 1 system Merrill 1 system Middleton 1 system Mineral Point 1 system Monona ·PFAS 1 system Monroe 1 system Mosinee 1 system Mount Calvary 1 system Mount Hope 1 system Mount Horeb ·PFAS 1 system Mt Sterling 1 system Mukwonago 1 system New Glarus 1 system New Richmond ·PFAS 1 system Newburg 1 system North Fond Du Lac 1 system North Prairie 1 system Oak Creek 1 system Oconto 1 system Odanah 1 system Onalaska ·PFAS 1 system Oneida 1 system Oregon 1 system Osceola 1 system Oxford 1 system Pell Lake 1 system Pence 1 system Pepin 1 system Peshtigo 1 system Platteville 1 system Plover ·PFAS 1 system Plymouth 1 system Port Washington 1 system Portage ·PFAS 1 system Pound 1 system Prescott ·PFAS 1 system Pulaski 1 system Radisson 1 system Randolph 1 system Reeseville 1 system Rewey 1 system Rice Lake 1 system Ridgeway 1 system River Falls 1 system Rochester 1 system Rosholt 1 system Sauk City 1 system Saukville ·PFAS 1 system Schofield ·PFAS 1 system Seymour 1 system Sharon 1 system Sheldon 1 system Sherwood 1 system Shorewood 1 system South Milwaukee 1 system Spring Valley 1 system Stanley 1 system Stoughton ·PFAS 1 system Sturgeon Bay ·PFAS 1 system Sturtevant 1 system Suamico 1 system Theresa 1 system Thiensville 1 system Thorp 1 system Tomahawk ·PFAS 1 system Tony 1 system Two Rivers 1 system Verona ·PFAS 1 system Wales 1 system Waterford 1 system Waterloo 1 system Waukesha 1 system Waunakee 1 system Waupun 1 system Wausau ·PFAS 1 system Wautoma 1 system West Allis 1 system West Salem 1 system Westboro 1 system Westby 1 system Weyerhaeuser 1 system Windsor 1 system Winneconne 1 system Wisconsin Dells 1 system Yuba 1 system