All water systems in Wisconsin
9,089 systems
| System | Serves | Status | Rules violated, 3 yr | Unresolved |
|---|---|---|---|---|
|
WI Dnr Wildcat MT Group Camp Ontario · Vernon County |
38 | 0 | 0 | |
|
Aldo Leopold Legacy Center Baraboo · Sauk County |
37 | 0 | 0 | |
|
American Legion Post 522 Hubertus · Washington County |
37 | 0 | 0 | |
|
Bethlehem Lutheran Church Athens · Marathon County |
37 | 0 | 0 | |
|
Caddy Shack Oconomowoc · Dodge County |
37 | 0 | 0 | |
|
Chenequa Country Club Maintenance Shop Hartland · Waukesha County |
37 | 0 | 0 | |
|
Citizens Bank Vernon Big Bend · Waukesha County |
37 | 0 | 0 | |
|
Dollar General Trevor Trevor · Kenosha County |
37 | 0 | 0 | |
|
Fleet Farm Muskego Fuel Center Muskego · Waukesha County |
37 | 0 | 0 | |
|
Front Street Shops Rochester · Racine County |
37 | 0 | 0 | |
|
Gordon Lodge Restaurant Baileys Harbor · Door County |
37 | 2 | 0 | |
|
Grace EV Lutheran CH Dalton · Green Lake County |
37 | 0 | 0 | |
|
Harrys Place Dodge · Trempealeau County |
37 | 0 | 0 | |
|
Hawks View Golf Club Lake Geneva · Walworth County |
37 | 0 | 0 | |
|
Lake Arbutus Tiki Bar & Campground Neillsville · Clark County |
37 | 1 | 0 | |
|
Maple Leaf INC Verona · Dane County |
37 | 0 | 0 | |
|
Mid-State Equipment Janesville Janesville · Rock County |
37 | 0 | 0 | |
|
Midwest Assembly Warehouse & Distribution LLC West Bend · Washington County |
37 | 0 | 0 | |
|
Mikes Bar & Grill Campbellsport · Fond du Lac County |
37 | 0 | 0 | |
|
Mill of Arkdale LLC the Arkdale · Adams County |
37 | 1 | 1 | |
|
Otsego Yacht Club Bar & Grill Rio · Columbia County |
37 | 1 | 0 | |
|
Parkside Inn Newburg · Washington County |
37 | 0 | 0 | |
|
Res/taylor Creek Nurseries Business Office Brodhead · Rock County |
37 | 0 | 0 | |
|
Sauk Prairie Small Animal Hospital Prairie Du Sac · Sauk County |
37 | 0 | 0 | |
|
Shipyard Bar the Port Washington · Ozaukee County |
37 | 1 | 1 | |
|
Shop the Sauk City · Sauk County |
37 | 0 | 0 | |
|
Slumberland Madison · Dane County |
37 | 0 | 0 | |
|
ST Marys Dover Kansasville · Racine County |
37 | 0 | 0 | |
|
Thiensville Mill Professional Bldg Thiensville · Ozaukee County |
37 | 1 | 1 | |
|
Walleye Lodge 3 Hill Pearson · Langlade County |
37 | 0 | 0 | |
|
Waubeka Fire Dept & Waubeka Fire Hall Fredonia · Ozaukee County |
37 | 0 | 0 | |
|
Beacons Cabins Minoqua · Oneida County |
36 | 0 | 0 | |
|
Burke Town Hall Town of Madison · Dane County |
36 | 0 | 0 | |
|
Changs Halfmoon Lake View Bar & Grill Mosinee · Marathon County |
36 | 0 | 0 | |
|
Debs North Star Tavern Pardeeville · Columbia County |
36 | 0 | 0 | |
|
Djs Kwik Stop Gotham · Richland County |
36 | 3 | 1 | |
|
Door CO Coffee Lab & Trixies Ephraim · Door County |
36 | 0 | 0 | |
|
Holiday Stationstore #471 Hudson · St. Croix County |
36 | 0 | 0 | |
|
Howards Grove Family Dental Howards Grove · Sheboygan County |
36 | 0 | 0 | |
|
Lebanon Fire Department Lebanon · Dodge County |
36 | 0 | 0 | |
|
Little Sweden Lodge Fish Creek · Door County |
36 | 1 | 0 | |
|
Monarch Fitness Center Hayward · Sawyer County |
36 | 0 | 0 | |
|
Norman Office Building a Richland Center · Richland County |
36 | 0 | 0 | |
|
North Lake Veterinary Clinic Hartland · Waukesha County |
36 | 0 | 0 | |
|
Nwtc Woodland Center Niagara · Florence County |
36 | 0 | 0 | |
|
Our Saviours Lutheran Church Elca Medford · Taylor County |
36 | 2 | 0 | |
|
Phat Bobs West Cmpgd Holcombe · Chippewa County |
36 | 1 | 0 | |
|
Pioneer Pointe Pool & Tennis Club Middleton · Dane County |
36 | 0 | 0 | |
|
Pioneer Store Ellison Bay · Door County |
36 | 0 | 0 | |
|
Roland Machinery Company Eau Claire · Eau Claire County |
36 | 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.