All water systems in Wisconsin
9,089 systems
| System | Serves | Status | Rules violated, 3 yr | Unresolved |
|---|---|---|---|---|
|
Boaz Country Store Richland Center · Richland County |
161 | 2 | 0 | |
|
Birchwood Golf Course Clubhouse Hazel Green · Grant County |
160 | 1 | 0 | |
|
Blackhawk Lake Office & Nature Center Highland · Iowa County |
160 | 0 | 0 | |
|
Camp Holiday Cmpgd East Well Boulder Junction · Vilas County |
160 | 0 | 0 | |
|
Camp Horseshoe Complex Court Rhinelander · Oneida County |
160 | 0 | 0 | |
|
Camp Horseshoe Main Well Rhinelander · Oneida County |
160 | 0 | 0 | |
|
Camp Horseshoe West Shower Building Rhinelander · Oneida County |
160 | 0 | 0 | |
|
Equity Cooperative Livestock Sales Assoc Lomira · Dodge County |
160 | 0 | 0 | |
|
Expeditions Unltd Cabins Baraboo · Sauk County |
160 | 0 | 0 | |
|
Ice Shanty Drive in Boulder Jct · Vilas County |
160 | 0 | 0 | |
|
Jackson CO Lake Arbutus East Back 90 Showerhouse Black River Falls · Jackson County |
160 | 0 | 0 | |
|
Mannys Parkside Manitowish Waters · Vilas County |
160 | 0 | 0 | |
|
North Star Camp for Boys Lodge Hayward · Sawyer County |
160 | 0 | 0 | |
|
Shepherd of the Hills Pewaukee · Waukesha County |
160 | 0 | 0 | |
|
ST Luke Lutheran Church Sheboygan Falls · Sheboygan County |
160 | 0 | 0 | |
|
Subway Spring Green · Sauk County |
160 | 0 | 0 | |
|
Wehr Nature Center Franklin · Milwaukee County |
160 | 0 | 0 | |
|
Wilmot Tubing Hill Wilmot · Kenosha County |
160 | 0 | 0 | |
|
Backyard Campground Gratiot · Lafayette County |
159 | 0 | 0 | |
|
Commodore the Hartland · Waukesha County |
158 | 0 | 0 | |
|
J & P Liquidators Deerbrook · Langlade County |
158 | 0 | 0 | |
|
VFW Post 8483 Madison · Dane County |
158 | 0 | 0 | |
|
Webers Express Mt Calvary · Fond du Lac County |
158 | 0 | 0 | |
|
Kwik Trip 358 Wales Wales · Waukesha County |
157 | 0 | 0 | |
|
Oakgreen Golf Course & Driving Range Fond Du Lac · Fond du Lac County |
157 | 0 | 0 | |
|
Wolffs River Inn Elcho · Langlade County |
157 | 1 | 1 | |
|
DR Dawg Thiensville · Ozaukee County |
156 | 0 | 0 | |
|
Melody Park Campground Pool Well Twin Lakes · Kenosha County |
156 | 0 | 0 | |
|
Oakwood Fruit Farm Store & Plant Richland Center · Richland County |
156 | 0 | 0 | |
|
ST Louis Church Caledonia · Racine County |
156 | 0 | 0 | |
|
WI Dnr Perrot Cmpgd Trempealeau · Trempealeau County |
156 | 1 | 0 | |
|
WI Dot Drivers Licensing & Testing Beaver Dam · Dodge County |
156 | 0 | 0 | |
|
Cabbys Grill & Patio Fox Lake · Dodge County |
155 | 0 | 0 | |
|
Camp Joy Bathhouse and Staff Housing Whitewater · Walworth County |
155 | 0 | 0 | |
|
Camp Joy Main Lodge Whitewater · Walworth County |
155 | 0 | 0 | |
|
Coachmans Inn Motel Proshop Concession Bdlgs 3 & 4 Edgerton · Dane County |
155 | 0 | 0 | |
|
Coachmans Inn Restaurant & Store Edgerton · Dane County |
155 | 0 | 0 | |
|
Dotties Citgo Hartland Hartland · Waukesha County |
155 | 0 | 0 | |
|
Milas Bakery Thiensville · Ozaukee County |
155 | 0 | 0 | |
|
Olde Cedar Inn West Bend · Washington County |
155 | 0 | 0 | |
|
Paradise Pines Resort East Osseo · Jackson County |
155 | 0 | 0 | |
|
Paradise Pines Resort West Osseo · Jackson County |
155 | 1 | 1 | |
|
Pioneer Park Clubhouse Well Lake Delton · Sauk County |
155 | 0 | 0 | |
|
Rockwood Church Waukesha · Waukesha County |
155 | 0 | 0 | |
|
Tabberts Restaurant Rosendale · Fond du Lac County |
155 | 0 | 0 | |
|
Unitarian Church North Mequon · Ozaukee County |
155 | 0 | 0 | |
|
Vegas Gentlemans Club Darien · Walworth County |
155 | 1 | 1 | |
|
Wisconsin Country Club Tee 5 Milwaukee · Milwaukee County |
155 | 0 | 0 | |
|
3 Sheets to Winnebago Fond Du Lac · Fond du Lac County |
154 | 0 | 0 | |
|
Arpin Cranberry Campground Warrens · Jackson County |
154 | 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.