All water systems in Wisconsin
11,026 systems
| System | Serves | Status | Rules violated, 3 yr | Unresolved |
|---|---|---|---|---|
|
Johnsonville Meadowside Plant Sheboygan Falls · Sheboygan County |
230 | 0 | 0 | |
|
Parkland Town Hall South Range · Douglas County |
230 | 0 | 0 | |
|
Rawhide Boys Ranch Central Services New London · Waupaca County |
230 | 0 | 0 | |
|
Washington CO Golf Course Clubhouse Hartford · Washington County |
230 | 0 | 0 | |
|
WI Dnr Kmsfnu Long Lake S Bath House Cascade · Fond du Lac County |
230 | 0 | 0 | |
|
Christian Life Church Mequon · Ozaukee County |
229 | 2 | 2 | |
|
Community United Methodist Church Elm Grove · Waukesha County |
229 | 0 | 0 | |
|
Pernats of Ixonia Ixonia · Jefferson County |
227 | 0 | 0 | |
|
Ave Maria Academy Plum City · Pierce County |
226 | 0 | 0 | |
|
ST Marys Sch Cato · Manitowoc County |
226 | 1 | 1 | |
|
Browns Lake Mobile Home CT Burlington · Racine County |
225 | 0 | 0 | |
|
Camp Manito-Wish YMCA Kitchen Boulder Junction · Vilas County |
225 | 0 | 0 | |
|
Camp Manito-Wish YMCA Main Boulder Junction · Vilas County |
225 | 0 | 0 | |
|
Chippewa Ranch Camp Mess Hall Eagle River · Oneida County |
225 | 0 | 0 | |
|
Maplewood Village Appleton · Outagamie County |
225 | 1 | 0 | |
|
Meyer Utility Structures LLC Hager City · Pierce County |
225 | 0 | 0 | |
|
Ntc AG Center Wausau · Marathon County |
225 | 2 | 0 | |
|
Pine Valley Community Village Richland Center · Richland County |
225 | 3 | 1 | |
|
ST Thomas Catholic Church Milan · Marathon County |
225 | 0 | 0 | |
|
Union Center Waterworks Union Center · Juneau County |
225 | 1 | 1 | |
|
White Pine Pavillion Bloomer · Chippewa County |
225 | 0 | 0 | |
|
WI Dnr Gov Dodge Twin Valley 300 Camp Dodgeville · Iowa County |
225 | 0 | 0 | |
|
WI Dnr Mirror Lake Cliffwood Baraboo · Sauk County |
225 | 0 | 0 | |
|
Gratiot Waterworks Gratiot · Lafayette County |
224 | 7 | 1 | |
|
Peace Lutheran Church Rosendale · Fond du Lac County |
224 | 0 | 0 | |
|
Piggly Wiggly Howards Grove Howards Grove · Sheboygan County |
224 | 0 | 0 | |
|
North Haven Pool Well Fish Creek · Door County |
223 | 0 | 0 | |
|
Butterfly Supper Club Beloit · Rock County |
222 | 0 | 0 | |
|
Rosy Lane Holsteins Farm Office Watertown · Jefferson County |
221 | 0 | 0 | |
|
Anchor Inn Edgerton · Rock County |
220 | 0 | 0 | |
|
Ashley Furniture Homestore Richfield · Washington County |
220 | 0 | 0 | |
|
Beverly Gardens Banquet Hall Denmark · Brown County |
220 | 0 | 0 | |
|
Camp Moshava Dining on Hill Wild Rose · Waushara County |
220 | 0 | 0 | |
|
Camp Moshava Kitchen Wild Rose · Waushara County |
220 | 0 | 0 | |
|
Chicken Shack Waupaca · Waupaca County |
220 | 0 | 0 | |
|
Holiday Inn Restaurant Spruce Tn · Oconto County |
220 | 0 | 0 | |
|
Holy Wisdom Monastery Middleton · Dane County |
220 | 0 | 0 | |
|
J & WS Place Casco · Kewaunee County |
220 | 2 | 1 | |
|
Louisiana Pacific Corporation Hayward · Sawyer County |
220 | 0 | 0 | |
|
Marengo Valley School Ashland · Ashland County |
220 | 0 | 0 | |
|
McCauslin Brook Golf Course Clubhouse Lakewood Tn · Oconto County |
220 | 0 | 0 | |
|
Mount Ashwabay Bayfield · Bayfield County |
220 | 0 | 0 | |
|
Nordic Mountain Bistro Lodge Wild Rose · Waushara County |
220 | 1 | 1 | |
|
Oakdale Estates MHP Sturtevant · Kenosha County |
220 | 1 | 0 | |
|
Out O Town Supper Club Kaukauna · Outagamie County |
220 | 0 | 0 | |
|
Pine Tree Supper Club New London · Waupaca County |
220 | 0 | 0 | |
|
Prairie Pines Golf Club Sun Prairie · Dane County |
220 | 0 | 0 | |
|
Rendezvous Dance Hall Luxemburg · Kewaunee County |
220 | 0 | 0 | |
|
Richards of Dunbar Dunbar Tn · Marinette County |
220 | 3 | 1 | |
|
Rogers Mem Hosp Main Hospital Oconomowoc · Waukesha County |
220 | 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.