All water systems in Wisconsin
11,026 systems
| System | Serves | Status | Rules violated, 3 yr | Unresolved |
|---|---|---|---|---|
|
Albatross Drive in Washington Island · Door County |
85 | 2 | 1 | |
|
American Legion Post 351 Montello · Marquette County |
85 | 0 | 0 | |
|
Anthony Acres School Mondovi · Eau Claire County |
85 | 1 | 0 | |
|
Blue Bear Ellison Bay Ellison Bay · Door County |
85 | 2 | 1 | |
|
Bremer Manufacturing Elkhart Lake · Calumet County |
85 | 0 | 0 | |
|
Buckhorn Supper Club Milton · Rock County |
85 | 0 | 0 | |
|
Camp Nawakwa Chalet Well Cornell · Chippewa County |
85 | 0 | 0 | |
|
Castle Rock Inn Muscoda · Grant County |
85 | 2 | 1 | |
|
Chetek Lanes INC Chetek · Barron County |
85 | 0 | 0 | |
|
Christian Harbor Youth Camp INC Bathhouse Holcombe · Chippewa County |
85 | 0 | 0 | |
|
Christian Harbor Youth Camp Inc-Lodge Well Holcombe · Chippewa County |
85 | 0 | 0 | |
|
Community Christian School of Baraboo Baraboo · Sauk County |
85 | 0 | 0 | |
|
Dane CO Lake Farm CO Park Heritage Center Madison · Dane County |
85 | 0 | 0 | |
|
Didion Ethanol Cambria · Columbia County |
85 | 0 | 0 | |
|
Eden Pet Products LLC Eden · Fond du Lac County |
85 | 0 | 0 | |
|
Ephraim Moravian CH Ephraim · Door County |
85 | 1 | 1 | |
|
Grande Cheese CO Chilton Plant Chilton · Calumet County |
85 | 0 | 0 | |
|
Guides Inn Boulder Junction · Vilas County |
85 | 0 | 0 | |
|
Hillside Tavern and Grill Sayner · Vilas County |
85 | 0 | 0 | |
|
Innsbruck Water Trust West Salem · La Crosse County |
85 | 0 | 0 | |
|
Island Pizza Wash Island · Door County |
85 | 2 | 1 | |
|
Kids at Play Child Care Center Stoddard · Vernon County |
85 | 1 | 0 | |
|
Lkq Smart Parts Hustisford · Dodge County |
85 | 0 | 0 | |
|
Luck Golf Course Shop Luck · Polk County |
85 | 0 | 0 | |
|
Mazomanie MHP Mazomanie · Dane County |
85 | 0 | 0 | |
|
Noras Bachelors II Deerfield · Dane County |
85 | 0 | 0 | |
|
Old School Bar & Grill Green Lake · Green Lake County |
85 | 2 | 1 | |
|
Ponderosa Pines Bathhouse Bancroft · Adams County |
85 | 0 | 0 | |
|
Rays Mequon LLC Mequon · Ozaukee County |
85 | 0 | 0 | |
|
Rolling Meadows of Larsen LLC Larsen · Winnebago County |
85 | 0 | 0 | |
|
Rumors Roadhouse Plymouth · Sheboygan County |
85 | 0 | 0 | |
|
S & L Motors Pulaski · Brown County |
85 | 0 | 0 | |
|
Silver Star Avoca · Iowa County |
85 | 0 | 0 | |
|
Sophias Restaurant Beloit · Rock County |
85 | 0 | 0 | |
|
Tainter Woods Condominiums Colfax · Dunn County |
85 | 2 | 1 | |
|
Tamarack Health Hayward Medical Center Hayward · Sawyer County |
85 | 3 | 1 | |
|
Trinity Lutheran CH ED Bldg Arkdale · Adams County |
85 | 0 | 0 | |
|
Trinity Lutheran Church Hartford · Dodge County |
85 | 0 | 0 | |
|
WI Dnr UP Gresham Cmpgd 47 Boulder Jct · Vilas County |
85 | 0 | 0 | |
|
WI Dnr UP Gresham Cmpgd 48 Boulder Junction · Vilas County |
85 | 0 | 0 | |
|
WI Dnr UP Gresham Lndng 46 Boulder Jct · Vilas County |
85 | 0 | 0 | |
|
Yukon Trails Cmpgd-West Side Well Lyndon Station · Juneau County |
85 | 0 | 0 | |
|
Behnke Olson Outdoor Recreation Center Stevens Point · Portage County |
84 | 0 | 0 | |
|
Dodge CO Harnischfeger Park Clubhouse/cmpgrd Ixonia · Dodge County |
84 | 0 | 0 | |
|
Hiawatha MH Estates Old Office Arbor Vitae · Vilas County |
84 | 0 | 0 | |
|
Lake Country Apartments Delafield · Waukesha County |
84 | 2 | 1 | |
|
River Trails Estates Water Users Mequon · Ozaukee County |
84 | 2 | 1 | |
|
Sinissippi Lake Pub Hustisford · Dodge County |
84 | 0 | 0 | |
|
Speedway St Croix Falls · Polk County |
84 | 0 | 0 | |
|
Trinity Lutheran Sch & CH Hilbert · Calumet County |
84 | 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.