All water systems in Wisconsin
9,089 systems
| System | Serves | Status | Rules violated, 3 yr | Unresolved |
|---|---|---|---|---|
|
Buddys River Resort Sauk City · Dane County |
310 | 0 | 0 | |
|
LA Casita Twin Lakes · Kenosha County |
310 | 0 | 0 | |
|
Minikani YMCA Camp Dining Lodge Hubertus · Washington County |
309 | 0 | 0 | |
|
Minikani YMCA Camp Explorer Unit Hubertus · Washington County |
309 | 1 | 0 | |
|
Minikani YMCA Camp Horse Barn Hubertus · Washington County |
309 | 0 | 0 | |
|
Minikani YMCA Camp Pioneer Unit Hubertus · Washington County |
309 | 0 | 0 | |
|
Minikani YMCA Camp Trail Blazer Hubertus · Washington County |
309 | 0 | 0 | |
|
Loft Fish Creek · Door County |
308 | 0 | 0 | |
|
Portview Church Port Washington · Ozaukee County |
308 | 0 | 0 | |
|
Quick Stop Stoughton · Dane County |
308 | 0 | 0 | |
|
Rons Market Helenville · Jefferson County |
308 | 0 | 0 | |
|
Whitnall Park Golf Course Clubhouse Hales Corners · Milwaukee County |
308 | 0 | 0 | |
|
Lumber Inn Delafield · Waukesha County |
307 | 0 | 0 | |
|
Pipe Express Malone · Fond du Lac County |
307 | 0 | 0 | |
|
West Bend Lakes Golf & Recreation West Bend · Washington County |
307 | 0 | 0 | |
|
Camp Wawbeek Respite Camp Lodge Wisconsin Dells · Columbia County |
306 | 0 | 0 | |
|
Camp Wawbeek Respite Camp Rec Center Wisconsin Dells · Columbia County |
306 | 0 | 0 | |
|
Camp Wawbeek Nature Center Main Well Wisconsin Dells · Columbia County |
306 | 0 | 0 | |
|
Hookers Resort Poynette · Columbia County |
306 | 0 | 0 | |
|
Hope Lutheran Church Madison · Dane County |
306 | 0 | 0 | |
|
Exxon-Mobil Westfield Westfield · Marquette County |
305 | 0 | 0 | |
|
Hartford Town Hall Hartford · Washington County |
305 | 0 | 0 | |
|
New China Buffet Waukesha · Waukesha County |
305 | 0 | 0 | |
|
Pioneer Park Comfort Sta 1 Lake Delton · Sauk County |
305 | 0 | 0 | |
|
Pioneer Park Comfort Sta 2 Lake Delton · Sauk County |
305 | 0 | 0 | |
|
Racine Instinctive Bowmen Sturtevant · Racine County |
305 | 0 | 0 | |
|
Remis Thirsty Moose Poynette · Columbia County |
305 | 0 | 0 | |
|
Round Lake Farms Brillion · Calumet County |
305 | 0 | 0 | |
|
J Mobil Mequon Mequon · Ozaukee County |
304 | 0 | 0 | |
|
North Cape Lutheran Church Franksville · Racine County |
304 | 0 | 0 | |
|
Pribnows Maple Inn Ixonia · Dodge County |
304 | 0 | 0 | |
|
Richfield Heritage Park Concession Stand Hubertus · Washington County |
304 | 1 | 0 | |
|
Richfield Heritage Park and Municipal Shop Hubertus · Washington County |
304 | 0 | 0 | |
|
Wendts on the Lake Van Dyne · Fond du Lac County |
304 | 0 | 0 | |
|
Chapel on the Hill Church Lake Geneva · Walworth County |
303 | 1 | 1 | |
|
Kettle Moraine Community Church North Prairie · Waukesha County |
303 | 0 | 0 | |
|
ON the Border Franklin · Milwaukee County |
303 | 0 | 0 | |
|
WI Historical Stonefield Barn Cassville · Grant County |
303 | 2 | 1 | |
|
Wishing Well RV Resort Lodge Well System Fort Atkinson · Jefferson County |
303 | 0 | 0 | |
|
Burke Lutheran Church Madison · Dane County |
302 | 0 | 0 | |
|
Camp Awana 1 Mess Hall Fredonia · Washington County |
302 | 0 | 0 | |
|
Camp Awana 2 Hilltop Well Fredonia · Washington County |
302 | 0 | 0 | |
|
Camp Awana 3 Canteen Well Fredonia · Washington County |
302 | 0 | 0 | |
|
Grace Lutheran Church Cambridge · Jefferson County |
302 | 0 | 0 | |
|
Lord of Life Lutheran Church Oconomowoc · Waukesha County |
302 | 0 | 0 | |
|
Old World Wisconsin Norwegian W4 Eagle · Waukesha County |
302 | 0 | 0 | |
|
Rock River Thresheree Restrooms Edgerton · Rock County |
302 | 0 | 0 | |
|
Rock River Thresheree Shelter Edgerton · Rock County |
302 | 0 | 0 | |
|
Timber Lee Chris Ctr Blue Spruce East Troy · Walworth County |
302 | 0 | 0 | |
|
Vernon Evangelical Lutheran Church Mukwonago · Waukesha County |
302 | 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.