All water systems in Wisconsin
11,026 systems
| System | Serves | Status | Rules violated, 3 yr | Unresolved |
|---|---|---|---|---|
|
Mogasheen Resort Cable · Bayfield County |
70 | 1 | 0 | |
|
Nortera Foods Camp 194 Fairwater · Fond du Lac County |
70 | 0 | 0 | |
|
Nortera Foods Camp 194 2-Dining Facility Fairwater · Fond du Lac County |
70 | 0 | 0 | |
|
North Coon Prairie Luth Church Westby · Vernon County |
70 | 0 | 0 | |
|
Northport Ferry Terminal Northport · Door County |
70 | 2 | 1 | |
|
ON the Rox Sauk City · Dane County |
70 | 0 | 0 | |
|
Premier Livestock Auction/souper Sandwich Withee · Clark County |
70 | 0 | 0 | |
|
Primal Eats LLC Gillett · Oconto County |
70 | 0 | 0 | |
|
Rockford House Sarona · Washburn County |
70 | 0 | 0 | |
|
Sand Valley Golf Resort Employee Housing_caddy Shack_ops Tlr Nekoosa · Adams County |
70 | 0 | 0 | |
|
Shady Oaks Cmpgd Well Near Front Gate Markesan · Green Lake County |
70 | 0 | 0 | |
|
Shady Oaks Cmpgd Well Near Mgrs Trailer Markesan · Green Lake County |
70 | 0 | 0 | |
|
Sister Bay Moravian CH Sister Bay · Door County |
70 | 1 | 1 | |
|
Skol Haus Frederic · Polk County |
70 | 0 | 0 | |
|
Small World Montessori School Riverside Racine · Racine County |
70 | 0 | 0 | |
|
ST Johns EV Lutheran CH Kingston · Green Lake County |
70 | 2 | 0 | |
|
Summer Oaks Condo Assoc Merrimac · Sauk County |
70 | 0 | 0 | |
|
Sunset Supper Club Westfield · Marquette County |
70 | 0 | 0 | |
|
Sweeneys Y-Go-By Cornell · Chippewa County |
70 | 0 | 0 | |
|
Sweetwater Spirits & Resort Eagle River · Vilas County |
70 | 0 | 0 | |
|
Top of the Hill Shops Fish Creek · Door County |
70 | 0 | 0 | |
|
Upper Midwest Environmental Sciences Ctr La Crosse · La Crosse County |
70 | 0 | 0 | |
|
WI Dnr Kmsfnu Mauthe LK Upper 500s Campbellsport · Fond du Lac County |
70 | 0 | 0 | |
|
Williamsburg 207 209 and 214 Thiensville · Ozaukee County |
70 | 4 | 3 | |
|
Willow Pines Mfd Home Community Winchester · Winnebago County |
70 | 0 | 0 | |
|
Wst Fab LLC Manitowoc · Manitowoc County |
70 | 0 | 0 | |
|
Wwt VI LLC St Croix Falls · Polk County |
70 | 1 | 1 | |
|
Zion Lutheran Church Ashippun · Dodge County |
70 | 0 | 0 | |
|
Applecreek Resort Fish Creek · Door County |
69 | 0 | 0 | |
|
Bayside Tavern Fish Creek · Door County |
68 | 2 | 1 | |
|
Camp Vista Writers Lodge Campbellsport · Fond du Lac County |
68 | 0 | 0 | |
|
Castle Rock CO Park-East Well Friendship · Adams County |
68 | 0 | 0 | |
|
Destefanis Group LLC Elm Grove · Waukesha County |
68 | 0 | 0 | |
|
Dodge CO Derge Park Hand Pump Beaver Dam · Dodge County |
68 | 0 | 0 | |
|
Dodge CO Derge Park Shelter Well Beaver Dam · Dodge County |
68 | 0 | 0 | |
|
Edgewaters Pewaukee · Waukesha County |
68 | 0 | 0 | |
|
Hobart Waterworks S a 4 Hobart · Brown County |
68 | 3 | 1 | |
|
Little Store in the Country the Beloit · Rock County |
68 | 0 | 0 | |
|
Migrant Camp 929 Lauer Farms Wautoma · Waushara County |
68 | 1 | 1 | |
|
Mission Lakes II Okauchee · Waukesha County |
68 | 0 | 0 | |
|
Petersen Adventist School Columbus · Columbia County |
68 | 0 | 0 | |
|
Shore Haven Lake Assn Fontana · Walworth County |
68 | 0 | 0 | |
|
The Landing County |
68 | 1 | 0 | |
|
Trailer Court County |
68 | 0 | 0 | |
|
U S F W S Horicon Hdqrts Bldg Mayville · Dodge County |
68 | 1 | 0 | |
|
Yuba Waterworks Yuba · Richland County |
68 | 1 | 1 | |
|
Holy Cross Parish Wilmot · Kenosha County |
67 | 2 | 0 | |
|
Lakehouse Bar & Grill Plymouth · Sheboygan County |
67 | 1 | 1 | |
|
Silver Lake Manor Wautoma · Waushara County |
67 | 0 | 0 | |
|
West Riverside Energy Center Beloit · Rock County |
67 | 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.