All water systems in Wisconsin
11,026 systems
| System | Serves | Status | Rules violated, 3 yr | Unresolved |
|---|---|---|---|---|
|
Main Street Market Egg Harbor · Door County |
25 | 0 | 0 | |
|
Main Street Station Wild Rose · Waushara County |
25 | 3 | 1 | |
|
Maks 202 Stone Lake · Sawyer County |
25 | 0 | 0 | |
|
Mallard Lake Cabin 7 Webster · Burnett County |
25 | 0 | 0 | |
|
Mallard Lake New Cabin Webster · Burnett County |
25 | 0 | 0 | |
|
Mallard Lake Resort 3 Webster · Burnett County |
25 | 0 | 0 | |
|
Maloneys Kaukauna · Outagamie County |
25 | 1 | 0 | |
|
Mama DS DU Lac Tomahawk · Lincoln County |
25 | 0 | 0 | |
|
Mamas Place Wittenburg · Marathon County |
25 | 0 | 0 | |
|
Manheim Milwaukee Auto Auction-New Body Shop Caledonia · Racine County |
25 | 1 | 0 | |
|
Manitowish Waters Athletic Club Manitowish · Vilas County |
25 | 0 | 0 | |
|
Manitowish Waters Town Hall Manitowish Waters · Vilas County |
25 | 0 | 0 | |
|
Manitowoc CO Hss Pinecrest Vil Meeme House Manitowoc · Manitowoc County |
25 | 0 | 0 | |
|
Manitowoc CO Hss Pinecrest Vil Vetting House Manitowoc · Manitowoc County |
25 | 0 | 0 | |
|
Manitowoc Gun Club Manitowoc · Manitowoc County |
25 | 0 | 0 | |
|
Manns Mercantile Washington Island · Door County |
25 | 3 | 0 | |
|
Mannys Snack Shack Twin Lakes · Kenosha County |
25 | 0 | 0 | |
|
Maple Grove Tavern Butternut · Ashland County |
25 | 0 | 0 | |
|
Maple Ridge Estates Aniwa · Langlade County |
25 | 1 | 1 | |
|
Maple Terrace Resort Main Birchwood · Washburn County |
25 | 0 | 0 | |
|
Maple Town Fire Department Maple · Douglas County |
25 | 0 | 0 | |
|
Maple Town Hall Maple · Douglas County |
25 | 0 | 0 | |
|
Maple Valley Comm CH Maple Valley Tn · Oconto County |
25 | 1 | 0 | |
|
Mapleview Cmpgd Kewaunee · Kewaunee County |
25 | 0 | 0 | |
|
Maranatha Baptist CH Navarino · Shawano County |
25 | 1 | 0 | |
|
Marathon Feed INC Marathon · Marathon County |
25 | 0 | 0 | |
|
Marchants Super Value Brussels · Door County |
25 | 1 | 0 | |
|
Maribel Caves County Park Maribel · Manitowoc County |
25 | 0 | 0 | |
|
Maribel Sportsman Club Maribel · Manitowoc County |
25 | 0 | 0 | |
|
Marine Corps League Bingo Oshkosh · Winnebago County |
25 | 0 | 0 | |
|
Marinette CO PK Camp Bird Youth Center Stephenson Tn · Marinette County |
25 | 0 | 0 | |
|
Marinette CO PK Daves Falls Amberg Tn · Marinette County |
25 | 0 | 0 | |
|
Marinette CO PK Goodman Camp Area Silver Cliff Tn · Marinette County |
25 | 0 | 0 | |
|
Marinette CO PK Goodman Main Silver Cliff Tn · Marinette County |
25 | 0 | 0 | |
|
Marinette CO PK LK Noquebay Bathhouse Lake Tn · Marinette County |
25 | 0 | 0 | |
|
Marinette CO PK McClintock Cmpgd Silver Cliff Tn · Marinette County |
25 | 0 | 0 | |
|
Marinette CO PK McClintock Picnic Silver Cliff Tn · Marinette County |
25 | 0 | 0 | |
|
Marinette CO PK Menominee River Wagner Tn · Marinette County |
25 | 0 | 0 | |
|
Marinette CO PK Morgan Cmpgd Shower Bldg Niagara Tn · Marinette County |
25 | 0 | 0 | |
|
Marinette CO PK Morgan Lodge Niagara Tn · Marinette County |
25 | 0 | 0 | |
|
Marinette CO PK Twelve FT Falls Dunbar Tn · Marinette County |
25 | 0 | 0 | |
|
Marinette Moose Lodge Porterfield Tn · Marinette County |
25 | 0 | 0 | |
|
Marinette Shell Peshtigo Tn · Marinette County |
25 | 0 | 0 | |
|
Mark the Denmark · Brown County |
25 | 0 | 0 | |
|
Markesan City of Soldiers & Sailors Park Markesan · Green Lake County |
25 | 0 | 0 | |
|
Market Beautiful Solon Springs · Douglas County |
25 | 0 | 0 | |
|
Markos Smoking Bbq LLC Collins · Manitowoc County |
25 | 0 | 0 | |
|
Marks Sheridan Country Club Waupaca · Waupaca County |
25 | 0 | 0 | |
|
Marquette CO Parks Muir Well Westfield · Marquette County |
25 | 1 | 0 | |
|
Mars Cheese Castle New Bldg Kenosha · Kenosha 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.