All water systems in Wisconsin
11,026 systems
| System | Serves | Status | Rules violated, 3 yr | Unresolved |
|---|---|---|---|---|
|
Picnic Basket Nashotah Nashotah · Waukesha County |
90 | 0 | 0 | |
|
Pilgrim Place Office Park Brookfield · Waukesha County |
90 | 2 | 1 | |
|
Ponderosa Pines Campground 2 Bancroft · Adams County |
90 | 0 | 0 | |
|
Quality Paint & Coatings Oshkosh Oshkosh · Winnebago County |
90 | 0 | 0 | |
|
Quiet Country Community Assn Two Rivers · Manitowoc County |
90 | 1 | 0 | |
|
Riverview Park Buffalo City · Buffalo County |
90 | 0 | 0 | |
|
Rolling Hills MHP LLC River Falls · St. Croix County |
90 | 1 | 1 | |
|
Rustic Acres MHP Little Suamico · Oconto County |
90 | 0 | 0 | |
|
S and J Wild River MHP Hayward · Sawyer County |
90 | 4 | 1 | |
|
Shoreline Resort Ellison Bay · Door County |
90 | 2 | 1 | |
|
ST John EV Lutheran Church North Freedom · Sauk County |
90 | 0 | 0 | |
|
ST Pauls Evangelical Church Ridgeland · Barron County |
90 | 0 | 0 | |
|
ST Therese Chapel Waunakee · Dane County |
90 | 0 | 0 | |
|
Suburban Heights MHP Portage · Columbia County |
90 | 0 | 0 | |
|
Thiensville Professional Park Thiensville · Ozaukee County |
90 | 0 | 0 | |
|
Town Hall Apts Delavan · Walworth County |
90 | 0 | 0 | |
|
Trevor Center Trevor · Kenosha County |
90 | 0 | 0 | |
|
Waunakee Baptist Church Waunakee · Dane County |
90 | 0 | 0 | |
|
WI Christian Yth Cmp Great Hall Black River Falls · Jackson County |
90 | 0 | 0 | |
|
WI Dnr Richard Bong Headquarters Kansasville · Kenosha County |
90 | 1 | 0 | |
|
Winnebago Area Sanitary District Winnebago · Winnebago County |
90 | 0 | 0 | |
|
Barringers Fish Creek · Door County |
89 | 0 | 0 | |
|
Duesterbecks Brewing Company Elkhorn · Walworth County |
89 | 0 | 0 | |
|
Ebenezer Moravian Church Watertown · Jefferson County |
89 | 0 | 0 | |
|
Huntington Bank Elm Grove · Waukesha County |
89 | 0 | 0 | |
|
Punch Lake Campground Arbor Vitae · Vilas County |
89 | 0 | 0 | |
|
ST Vincent de Paul Country Thrift Store Port Washington · Ozaukee County |
89 | 0 | 0 | |
|
Veritas Steel 1 Wausau · Marathon County |
89 | 1 | 0 | |
|
Veritas Steel 2 Wausau · Marathon County |
89 | 0 | 0 | |
|
Yellowstone Cheese LLC Cadott · Chippewa County |
89 | 0 | 0 | |
|
American Legion Post 1 Germantown · Washington County |
88 | 0 | 0 | |
|
Cut Fish Creek · Door County |
88 | 1 | 1 | |
|
Econo Lodge Lake Mills · Jefferson County |
88 | 0 | 0 | |
|
Highland Colony Estates Condo Mequon · Ozaukee County |
88 | 0 | 0 | |
|
Kingdom Hall of Jehovahs Witnesses Burlingto Burlington · Racine County |
88 | 0 | 0 | |
|
Koshkonong Mounds Country Club Bear Trap Fort Atkinson · Jefferson County |
88 | 0 | 0 | |
|
Lakecrest Shores LLC Silver Lake · Kenosha County |
88 | 0 | 0 | |
|
Lakeside Development East & West Bldgs Mequon · Ozaukee County |
88 | 0 | 0 | |
|
Five Corners Retail Cedarburg · Ozaukee County |
87 | 0 | 0 | |
|
Goose the White Lake · Langlade County |
87 | 1 | 1 | |
|
Jordan Lutheran Church Browntown · Green County |
87 | 0 | 0 | |
|
Norman Office Building C Richland Center · Richland County |
87 | 1 | 1 | |
|
Praise Fellowship Church Muskego · Waukesha County |
87 | 0 | 0 | |
|
ST Peters Lutheran School Helenville · Jefferson County |
87 | 0 | 0 | |
|
Bethlehem Lutheran Church Muskego Muskego · Waukesha County |
86 | 0 | 0 | |
|
Crossroads Presbyterian Church & Preschool Mequon · Ozaukee County |
86 | 0 | 0 | |
|
Delafield Presbyterian Church Delafield · Waukesha County |
86 | 0 | 0 | |
|
Gfl Horicon Hauling Mayville · Dodge County |
86 | 0 | 0 | |
|
Midwest Veterinary Supply Sun Prairie · Dane County |
86 | 0 | 0 | |
|
NU Roc Health and Rehabilitation Center Laona · Forest County |
86 | 1 | 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.