All water systems in Wisconsin
11,026 systems
| System | Serves | Status | Rules violated, 3 yr | Unresolved |
|---|---|---|---|---|
|
ST Casimir Catholic Church Stevens Point · Portage County |
25 | 0 | 0 | |
|
ST Catherine Catholic Church Sarona · Washburn County |
25 | 0 | 0 | |
|
ST Clare Parish Cntr-Askeaton Greenleaf · Brown County |
25 | 0 | 0 | |
|
ST Clare Parish Cntr-Greenleaf Greenleaf · Brown County |
25 | 1 | 1 | |
|
ST Croix CO Homestead Parklands on Perch Lake Hudson · St. Croix County |
25 | 0 | 0 | |
|
ST Croix Inn Solon Springs · Douglas County |
25 | 0 | 0 | |
|
ST Croix Kart and Putt St Croix Falls · Polk County |
25 | 1 | 0 | |
|
ST Croix Outdoors St Croix Falls · Polk County |
25 | 0 | 0 | |
|
ST Croix Pines Campground Webster · Burnett County |
25 | 0 | 0 | |
|
ST Croix Presbyterian Church Gordon · Douglas County |
25 | 0 | 0 | |
|
ST Croix Valley Indoor Tennis Club Hudson · St. Croix County |
25 | 0 | 0 | |
|
ST Francis & ST Mary Parish Brussels · Door County |
25 | 2 | 1 | |
|
ST Francis Xavier Catholic Church Mosinee · Marathon County |
25 | 0 | 0 | |
|
ST Germain Area Chamber of Commerce St Germain · Vilas County |
25 | 0 | 0 | |
|
ST Germain Community Ctr St Germain · Vilas County |
25 | 0 | 0 | |
|
ST Germain Shopping Ctr St Germain · Vilas County |
25 | 0 | 0 | |
|
ST Hedwig Cath CH Kewaunee · Kewaunee County |
25 | 2 | 0 | |
|
ST Hubert Cath CH Casco · Kewaunee County |
25 | 2 | 1 | |
|
ST Iakovos Retreat Cottage Well Kansasville · Kenosha County |
25 | 1 | 0 | |
|
ST Iakovos Retreat Pool Cottage Well Kansasville · Kenosha County |
25 | 0 | 0 | |
|
ST Isidore the Farmer Parish Denmark · Manitowoc County |
25 | 0 | 0 | |
|
ST Jakobi Lutheran CH Shawano · Shawano County |
25 | 0 | 0 | |
|
ST James Cath CH Denmark · Manitowoc County |
25 | 0 | 0 | |
|
ST James UN CH of Christ Cleveland · Manitowoc County |
25 | 0 | 0 | |
|
ST John Lutheran CH Appleton · Outagamie County |
25 | 0 | 0 | |
|
ST John Lutheran CH Algoma · Kewaunee County |
25 | 0 | 0 | |
|
ST John Lutheran CH Little Suamico Tn · Oconto County |
25 | 0 | 0 | |
|
ST John Lutheran CH Sturgeon Bay · Door County |
25 | 2 | 0 | |
|
ST John Lutheran Gibson Mishicot · Manitowoc County |
25 | 0 | 0 | |
|
ST John the Baptist Hilbert · Calumet County |
25 | 0 | 0 | |
|
ST Johns Baptist Catholic Church Gleason · Lincoln County |
25 | 0 | 0 | |
|
ST Johns EV Lutheran Church Pelican Lake · Oneida County |
25 | 0 | 0 | |
|
ST Johns EV Lutheran Church Wisconsin Rapids · Portage County |
25 | 0 | 0 | |
|
ST Johns EV Lutheran Church Almond · Portage County |
25 | 0 | 0 | |
|
ST Johns Lutheran Mosinee · Marathon County |
25 | 0 | 0 | |
|
ST Johns Lutheran CH Saxeville · Waushara County |
25 | 1 | 1 | |
|
ST Johns Lutheran CH Grover Tn · Marinette County |
25 | 1 | 1 | |
|
ST Johns Lutheran CH Morgan Tn · Oconto County |
25 | 0 | 0 | |
|
ST Johns Lutheran CH Weyauwega · Waupaca County |
25 | 0 | 0 | |
|
ST Johns Lutheran Church Wausau · Marathon County |
25 | 1 | 1 | |
|
ST Johns Lutheran Church Athens · Marathon County |
25 | 0 | 0 | |
|
ST Johns Lutheran Church Elca Edgar · Marathon County |
25 | 0 | 0 | |
|
ST Johns Lutheran Church Wein Edgar · Marathon County |
25 | 0 | 0 | |
|
ST Johns Lutheran Sch Fremont · Waushara County |
25 | 0 | 0 | |
|
ST Johns United Church of Christ Prescott · Pierce County |
25 | 0 | 0 | |
|
ST Johns United Church of Christ La Pointe · Ashland County |
25 | 0 | 0 | |
|
ST Johns Warming Hut Delafield · Waukesha County |
25 | 0 | 0 | |
|
ST Joseph Parish New Franken · Brown County |
25 | 0 | 0 | |
|
ST Joseph ST John Cath CH Pilsen Luxemburg · Kewaunee County |
25 | 0 | 0 | |
|
ST Josephs Catholic Church Wittenberg · Marathon County |
25 | 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.