All water systems in Wisconsin
11,026 systems
| System | Serves | Status | Rules violated, 3 yr | Unresolved |
|---|---|---|---|---|
|
Indian Heights County |
126 | 0 | 0 | |
|
Inspire Early Childhood Addition Waunakee · Dane County |
126 | 0 | 0 | |
|
ST Johns Lutheran Church Oconomowoc · Waukesha County |
126 | 0 | 0 | |
|
ST Lukes Lutheran Church Sullivan · Jefferson County |
126 | 0 | 0 | |
|
ST Martin's Catholic Chu Campbellsport · Fond du Lac County |
126 | 0 | 0 | |
|
YMCA Camp Pepin Dining Hall Stockholm · Pepin County |
126 | 0 | 0 | |
|
Applewood Hill Madison · Dane County |
125 | 2 | 0 | |
|
Arbor Vitae Town Hall Arbor Vitae · Vilas County |
125 | 0 | 0 | |
|
Belvedere Supper Club Marshfield · Marathon County |
125 | 0 | 0 | |
|
Black Frog Grill LLC Sullivan · Jefferson County |
125 | 1 | 0 | |
|
Briqs Soft Serve Minocqua · Oneida County |
125 | 0 | 0 | |
|
Camp Alice Chester Shower House 10 East Troy · Walworth County |
125 | 0 | 0 | |
|
Camp Birch Knoll Phelps · Vilas County |
125 | 0 | 0 | |
|
Camp Whitcomb Friendship Lodge Hartland · Waukesha County |
125 | 0 | 0 | |
|
Camp Whitcomb Stiemke Lodge Hartland · Waukesha County |
125 | 0 | 0 | |
|
Coachmans Terrace MHP Lake Geneva · Walworth County |
125 | 1 | 1 | |
|
Countryside Christian Church Oshkosh · Winnebago County |
125 | 0 | 0 | |
|
Culvers Restaurant Spring Green · Sauk County |
125 | 0 | 0 | |
|
Dairymens INC Home Lake Boulder Junction · Vilas County |
125 | 0 | 0 | |
|
Eagle Chateau Apts Kenosha · Kenosha County |
125 | 3 | 2 | |
|
Echo Lake Foods Yorkville Franksville · Racine County |
125 | 0 | 0 | |
|
Gilmanton Elementary School Gilmanton · Buffalo County |
125 | 0 | 0 | |
|
Gilmanton Middle/high School Gilmanton · Buffalo County |
125 | 0 | 0 | |
|
Hartford Town Concession Stand Restrooms Hartford · Washington County |
125 | 0 | 0 | |
|
Hoefts Resort & Campground Tavern Well Cascade · Sheboygan County |
125 | 0 | 0 | |
|
Homestead HS Pavilion Mequon · Ozaukee County |
125 | 0 | 0 | |
|
Kingdom Hall of Jehovahs Witnesses Portage · Columbia County |
125 | 0 | 0 | |
|
Kingdom Hall of Jehovahs Witnesses Baraboo · Sauk County |
125 | 0 | 0 | |
|
Lake Geneva Country Club Clubhouse Lake Geneva · Walworth County |
125 | 2 | 1 | |
|
Lakewood Village Apts Twin Lakes · Kenosha County |
125 | 3 | 1 | |
|
Luther Point Bible Camp Community Center Grantsburg · Burnett County |
125 | 0 | 0 | |
|
Maple Grove MHP Beaver Dam · Dodge County |
125 | 0 | 0 | |
|
Mars Restaurant & Resort Lake Geneva · Walworth County |
125 | 0 | 0 | |
|
Natures Villa Helenville · Jefferson County |
125 | 0 | 0 | |
|
New Life Lutheran Church Kenosha · Kenosha County |
125 | 0 | 0 | |
|
Pathway Church Burlington · Racine County |
125 | 0 | 0 | |
|
Plum City Elementary School Plum City · Pierce County |
125 | 0 | 0 | |
|
Prairie Apts 3 & 4 Salem · Kenosha County |
125 | 3 | 1 | |
|
Rhinelander Northwood Golf Course Rhinelander · Oneida County |
125 | 1 | 1 | |
|
ST Johns Lutheran Sch Manitowoc · Manitowoc County |
125 | 0 | 0 | |
|
ST Lawrence Cath Parish Center Jefferson · Jefferson County |
125 | 0 | 0 | |
|
Trailways Inn Hayward · Sawyer County |
125 | 0 | 0 | |
|
Travel Centers of America Hudson · St. Croix County |
125 | 1 | 1 | |
|
WI Dnr Kmsf Lapham Peak Evergreen Shelter Delafield · Waukesha County |
125 | 1 | 0 | |
|
WI Dnr Mill Bluff Beach Camp Douglas · Monroe County |
125 | 0 | 0 | |
|
WI Dnr Mill Bluff Office Camp Douglas · Monroe County |
125 | 0 | 0 | |
|
WI Dnr Nelson Dewey Walnut Grove Group Camp Cassville · Grant County |
125 | 0 | 0 | |
|
WI Dnr Pot Shower Bldg Sturgeon Bay · Door County |
125 | 0 | 0 | |
|
WI Dnr Rocky Arbor a Building Wisconsin Dells · Sauk County |
125 | 0 | 0 | |
|
YMCA Camp Pepin Cabins 1 & 2 Stockholm · Pepin County |
125 | 0 | 0 |
About this data
Rules violated counts the rules a system was in violation of in the past three years, including monitoring and reporting lapses; one rule can carry several violations. Unresolved is the number of those rules currently in violation at EPA's latest data refresh.
Source: the U.S. EPA's Enforcement and Compliance History Online system (ECHO), which publishes the federal Safe Drinking Water Information System. EPA's terms and values are shown as published. The Wisconsin records are from EPA's data refresh of Oct 7, 2026; EPA refreshes this data quarterly, and states report to EPA with a lag of three to six months, so the newest violations may not appear yet.