All water systems in Wisconsin
9,089 systems
| System | Serves | Status | Rules violated, 3 yr | Unresolved |
|---|---|---|---|---|
|
McCauslin Brook Golf Course Back 9 Lakewood Tn · Oconto County |
25 | 1 | 1 | |
|
McCauslin Brook Golf Course Front 9 Lakewood Tn · Oconto County |
25 | 2 | 0 | |
|
McCoy Park Brookfield · Waukesha County |
25 | 0 | 0 | |
|
McDonalds BP Abrams Abrams Tn · Oconto County |
25 | 1 | 1 | |
|
McGraw Lake Tavern Danbury · Burnett County |
25 | 0 | 0 | |
|
McKenzie Landing Spooner · Burnett County |
25 | 0 | 0 | |
|
Meadowbrook Event Center Ladysmith · Rusk County |
25 | 0 | 0 | |
|
Mecan River Inn Coloma · Waushara County |
25 | 0 | 0 | |
|
Mee Kwon Park Barn Mequon · Ozaukee County |
25 | 0 | 0 | |
|
Meisters Place Bar & Grill New Richmond · St. Croix County |
25 | 0 | 0 | |
|
Mellen Country Club Mellen · Ashland County |
25 | 0 | 0 | |
|
Melody Mill Aniwa · Shawano County |
25 | 0 | 0 | |
|
Mels Foxx Den Thorp · Taylor County |
25 | 3 | 1 | |
|
Mels Lakeshore Resort Campground Chetek · Barron County |
25 | 0 | 0 | |
|
Menomonee Park Picnic Shelter 1 Menomonee Falls · Waukesha County |
25 | 0 | 0 | |
|
Menomonee Park Picnic Shelter 2 & 3 Menomonee Falls · Waukesha County |
25 | 0 | 0 | |
|
Mequon Rotary Park Mequon · Ozaukee County |
25 | 0 | 0 | |
|
Mercer Senior Center Mercer · Iron County |
25 | 0 | 0 | |
|
Merks Knotheads Bar Tipler · Florence County |
25 | 0 | 0 | |
|
Merry Dale Resort Rhinelander · Oneida County |
25 | 0 | 0 | |
|
Metz Bar & Grill Fremont · Winnebago County |
25 | 0 | 0 | |
|
Meyer Park Wind Lake · Racine County |
25 | 0 | 0 | |
|
Meyers Landing Mosinee · Marathon County |
25 | 0 | 0 | |
|
Michaels Landing Bar Friendship · Adams County |
25 | 0 | 0 | |
|
Michaels Landing Campground Friendship · Adams County |
25 | 0 | 0 | |
|
Mickeys Tip UP Wisconsin Rapids · Portage County |
25 | 0 | 0 | |
|
Mickis Body Shop Bar & Grill New Lisbon · Juneau County |
25 | 0 | 0 | |
|
Micksters Pub & Grill Clintonville · Shawano County |
25 | 3 | 1 | |
|
Mid Vallee Golf De Pere · Brown County |
25 | 0 | 0 | |
|
Middle River Tavern Poplar · Douglas County |
25 | 0 | 0 | |
|
Midland Market Place Lake Nebagamon · Douglas County |
25 | 0 | 0 | |
|
Midway Bar Butternut · Ashland County |
25 | 0 | 0 | |
|
Midway Bar & Grill Lena Tn · Oconto County |
25 | 1 | 1 | |
|
Midway Ico Gordon · Douglas County |
25 | 0 | 0 | |
|
Midway Tavern Phillips · Price County |
25 | 1 | 1 | |
|
Midwest Harvest Hills Rice Lake · Barron County |
25 | 0 | 0 | |
|
Midwest Machinery CO Osceola Osceola · Polk County |
25 | 0 | 0 | |
|
Midwest Machinery CO Turtle Lake Turtle Lake · Polk County |
25 | 0 | 0 | |
|
Mill & CO the Mondovi · Dunn County |
25 | 0 | 0 | |
|
Mill Yard the Wausau · Marathon County |
25 | 0 | 0 | |
|
Millers Sandy Beach Oconomowoc · Waukesha County |
25 | 0 | 0 | |
|
Milltown Public Beach Milltown · Polk County |
25 | 0 | 0 | |
|
Milton Stellrecht Park Siren · Burnett County |
25 | 0 | 0 | |
|
Mimis on Route 49 Berlin · Waushara County |
25 | 3 | 0 | |
|
Mimosas Franklin · Milwaukee County |
25 | 0 | 0 | |
|
Minnesuing Acres New Motel Lake Nebagamon · Douglas County |
25 | 0 | 0 | |
|
Minnesuing Acres Restaurant Lake Nebagamon · Douglas County |
25 | 0 | 0 | |
|
Mission Covenant Church Gymnasium Poplar · Douglas County |
25 | 0 | 0 | |
|
Mission Covenant Church Sanctuary Poplar · Douglas County |
25 | 0 | 0 | |
|
Missouri Tavern Waunakee · Dane 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.