Nitrate violations in Wisconsin
226 active public water systems in Wisconsin had a Nitrate violation in the past three years, 9 of them still unresolved. What Nitrate is and why it matters.
Systems with a Nitrate violation
Unresolved first, then largest first| System | Serves | Status | Rules violated, 3 yr | Unresolved |
|---|---|---|---|---|
|
Pour House Poynette · Columbia County |
27 | 3 | 1 | |
|
ST Johns Lutheran CH How Tn · Oconto County |
27 | 1 | 0 | |
|
Trueblood Performing Arts Ctr Washington Island · Door County |
27 | 3 | 0 | |
|
Viking Village Mtl Wash Island · Door County |
27 | 3 | 0 | |
|
Woodwalk Gallery Egg Harbor · Door County |
27 | 3 | 1 | |
|
Stockholm Village Park Cmpgd Stockholm · Pepin County |
26 | 3 | 0 | |
|
Amberg Mart Amberg · Marinette County |
25 | 3 | 1 | |
|
Arrowhead Saloon Suring · Oconto County |
25 | 3 | 0 | |
|
Beansnappers Exotic Dancing Appleton · Outagamie County |
25 | 4 | 1 | |
|
Bella Goose Coffee Shop Briggsville · Marquette County |
25 | 1 | 0 | |
|
Blazing 7 INC City Limits Peshtigo Tn · Marinette County |
25 | 3 | 1 | |
|
Bloomfield Bar & Grill LLC Weyauwega · Waushara County |
25 | 1 | 0 | |
|
Bobbers UP Chilton · Calumet County |
25 | 2 | 0 | |
|
Bull Pen Forestville · Door County |
25 | 3 | 1 | |
|
Cast a Way Trailer Park Amery · Polk County |
25 | 2 | 0 | |
|
Cent Wis Env Center Walker Lodge Amherst Junction · Portage County |
25 | 2 | 0 | |
|
Church of God of Bonduel Cecil · Shawano County |
25 | 2 | 0 | |
|
Country Roads Bar & Grill Wausaukee Tn · Marinette County |
25 | 3 | 1 | |
|
County Materials Corporation Office Roberts · St. Croix County |
25 | 1 | 0 | |
|
Crooked Lake Chapel Crivitz · Oconto County |
25 | 1 | 0 | |
|
Dale BP Dale · Outagamie County |
25 | 2 | 0 | |
|
Deer Run Golf Course Brillion · Calumet County |
25 | 3 | 1 | |
|
Dianes Pop a Top Pembine Tn · Marinette County |
25 | 3 | 0 | |
|
Door 44 Winery Sturgeon Bay · Door County |
25 | 3 | 0 | |
|
Eagles Club Sparta · Monroe County |
25 | 2 | 0 | |
|
Family Dollar 10374 Wild Rose Wild Rose · Waushara County |
25 | 2 | 0 | |
|
Fishers Bar & Grill Stephenson Tn · Marinette County |
25 | 3 | 1 | |
|
Flagstar Bank Mountain Tn · Oconto County |
25 | 1 | 0 | |
|
Four Seasons Hotel Pembine · Marinette County |
25 | 3 | 0 | |
|
G Spot Bar Bowler · Shawano County |
25 | 2 | 0 | |
|
Harbour Village East Tank Egg Harbor · Door County |
25 | 3 | 0 | |
|
Hide a Way Bar & Grill Wautoma · Waushara County |
25 | 1 | 0 | |
|
Hoppers Bar Marion · Shawano County |
25 | 2 | 0 | |
|
Houterville Station Bar Kewaunee · Kewaunee County |
25 | 3 | 0 | |
|
Immanuel Lutheran CH Cecil · Shawano County |
25 | 1 | 0 | |
|
Kingfisher Resort Main House New Auburn · Barron County |
25 | 1 | 0 | |
|
Lake Hilbert Cmpgd Goodman Tn · Marinette County |
25 | 3 | 1 | |
|
Lake Hilbert Cmpgd Group Area Goodman Tn · Marinette County |
25 | 3 | 1 | |
|
Langlade CO Perch Lake Campground Elcho · Langlade County |
25 | 2 | 0 | |
|
Lee Lake Tavern Pound · Oconto County |
25 | 2 | 0 | |
|
Longbranch Saloon Gresham · Shawano County |
25 | 2 | 0 | |
|
Lumberyard Bar & Grill Bonduel · Shawano County |
25 | 2 | 0 | |
|
Main Street Station Wild Rose · Waushara County |
25 | 2 | 0 | |
|
Mels Foxx Den Thorp · Taylor County |
25 | 3 | 1 | |
|
Micksters Pub & Grill Clintonville · Shawano County |
25 | 2 | 0 | |
|
Mimis on Route 49 Berlin · Waushara County |
25 | 3 | 0 | |
|
New Steel Mill Peshtigo · Marinette County |
25 | 3 | 1 | |
|
North Lake Campground Comstock · Barron County |
25 | 1 | 0 | |
|
North Star Bar Niagara · Marinette County |
25 | 3 | 0 | |
|
Old Town Hall the Townsend Tn · Oconto County |
25 | 3 | 0 |
About this data
A system is counted once if any of its violations in the past three years involved Nitrate, including monitoring and reporting lapses. Rules violated and status in the table are for the whole system, not Nitrate alone.
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. Retrieved from ECHO on Oct 11, 2026.