All water systems in Wisconsin
9,089 systems
| System | Serves | Status | Rules violated, 3 yr | Unresolved |
|---|---|---|---|---|
|
Mixed UP Staples Lake Comstock · Polk County |
25 | 0 | 0 | |
|
Mjs Indian Creek Tavern Frederic · Polk County |
25 | 1 | 1 | |
|
Mjs Wayside Eagle River · Vilas County |
25 | 0 | 0 | |
|
Mnl Resort Conover · Vilas County |
25 | 0 | 0 | |
|
Mobil 310 Mart Manitowoc · Manitowoc County |
25 | 0 | 0 | |
|
Moen Lake Campground and Resort Rhinelander · Oneida County |
25 | 0 | 0 | |
|
Mohrs Bar Rib Lake · Price County |
25 | 0 | 0 | |
|
Mollys on Main Plum City · Pierce County |
25 | 0 | 0 | |
|
Mollyville Gas and Grocery Three Lakes · Oneida County |
25 | 0 | 0 | |
|
Mont DU Lac Campground Superior · Douglas County |
25 | 0 | 0 | |
|
Mont DU Lac RV Park Superior · Douglas County |
25 | 0 | 0 | |
|
Mont DU Lac RV Shower Superior · Douglas County |
25 | 0 | 0 | |
|
Mont DU Lac Ski Area Superior · Douglas County |
25 | 0 | 0 | |
|
Mont DU Lac Trophy Lodge Superior · Douglas County |
25 | 0 | 0 | |
|
Monument Point Cmpgd Sturgeon Bay · Door County |
25 | 0 | 0 | |
|
Moodys Wildwoods Campground Frederic · Polk County |
25 | 0 | 0 | |
|
Moon Lake Park Iron River · Bayfield County |
25 | 0 | 0 | |
|
Moon Valley Resort Merrimac · Sauk County |
25 | 0 | 0 | |
|
Moonlite Trails Cmpgd Necedah · Juneau County |
25 | 0 | 0 | |
|
Moose Acres Cmpgd Porterfield Tn · Marinette County |
25 | 0 | 0 | |
|
Moose Jaw Resort LLC Park Falls · Price County |
25 | 1 | 1 | |
|
Moose Junction Bar Dairyland · Douglas County |
25 | 1 | 1 | |
|
Moose Junction Campground Dairyland · Douglas County |
25 | 0 | 0 | |
|
Moraine Motel Neillsville · Clark County |
25 | 0 | 0 | |
|
Mormon Coulee Park West Side La Crosse · La Crosse County |
25 | 0 | 0 | |
|
Mormon Coulee Park-East Side La Crosse · La Crosse County |
25 | 0 | 0 | |
|
Motel Nokomis Tomahawk · Lincoln County |
25 | 0 | 0 | |
|
Moto Mart Minocqua Minocqua · Oneida County |
25 | 0 | 0 | |
|
Mountain Bay Bar & Grill Eland · Shawano County |
25 | 2 | 1 | |
|
Mountain Community Bldg Mountain Tn · Oconto County |
25 | 1 | 0 | |
|
Mountain Ground Mountain Tn · Oconto County |
25 | 1 | 0 | |
|
Mountain Spring Motel Mountain Tn · Oconto County |
25 | 0 | 0 | |
|
Mountain View Community Center Wautoma · Waushara County |
25 | 0 | 0 | |
|
MR Eds Place Wild Rose · Waushara County |
25 | 0 | 0 | |
|
MR Sippis Hager City · Pierce County |
25 | 0 | 0 | |
|
MT Morris Holden Lutheran CH Mount Morris · Waushara County |
25 | 0 | 0 | |
|
MT Morris Motel Wautoma · Waushara County |
25 | 0 | 0 | |
|
MT Morris Park and Shelter Pavilion Wild Rose · Waushara County |
25 | 0 | 0 | |
|
MT Olive Lutheran CH Green Bay · Brown County |
25 | 1 | 1 | |
|
MT Pockets Butternut · Price County |
25 | 1 | 1 | |
|
MT Vernon Park 2 Shelter Verona · Dane County |
25 | 0 | 0 | |
|
Mueller Park Wrightstown · Brown County |
25 | 0 | 0 | |
|
Mug the Merrillan · Jackson County |
25 | 0 | 0 | |
|
Mulberry Lane Farm Hilbert · Calumet County |
25 | 0 | 0 | |
|
Muman Bros WI LLC Dba Maks Solon Springs · Douglas County |
25 | 0 | 0 | |
|
Murphys Skunk Hill Freedom · Outagamie County |
25 | 1 | 1 | |
|
Musky Mart Pelican Lake · Oneida County |
25 | 0 | 0 | |
|
Musky Run Resort Hayward · Sawyer County |
25 | 0 | 0 | |
|
Musky Tale Resort Hayward · Sawyer County |
25 | 0 | 0 | |
|
Musky Tale Resort South Hayward · Sawyer 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.