All water systems in Wisconsin
11,026 systems
| System | Serves | Status | Rules violated, 3 yr | Unresolved |
|---|---|---|---|---|
|
WI Dnr Richard Bong Sunrise Showers Kansasville · Kenosha County |
200 | 1 | 0 | |
|
Willow Mill Campground Across Lake Rio · Columbia County |
200 | 0 | 0 | |
|
Willow Mill Campground Main Park Side Rio · Columbia County |
200 | 0 | 0 | |
|
Wishing Well RV Resort Deep Well Syst Fort Atkinson · Jefferson County |
200 | 0 | 0 | |
|
Wood Violet Recovery Dodgeville · Iowa County |
200 | 1 | 1 | |
|
Zion United Methodist Adell · Sheboygan County |
200 | 0 | 0 | |
|
Grace Lutheran Church Sheboygan · Sheboygan County |
199 | 0 | 0 | |
|
River Centre East Well Mequon · Ozaukee County |
199 | 0 | 0 | |
|
Crossroads Community Church Sheboygan · Sheboygan County |
196 | 0 | 0 | |
|
Exeland Waterworks Exeland · Sawyer County |
196 | 0 | 0 | |
|
HO Chunk Village County |
196 | 0 | 0 | |
|
Weston Elementary & Middle School Cazenovia · Sauk County |
196 | 0 | 0 | |
|
Alliant Columbia Energy Center Pardeeville · Columbia County |
195 | 0 | 0 | |
|
Haddonstone Subdivision Mequon · Ozaukee County |
195 | 0 | 0 | |
|
Holy Family Convent Manitowoc · Manitowoc County |
195 | 0 | 0 | |
|
Pence Waterworks Pence · Iron County |
191 | 2 | 1 | |
|
Wall Street Village New Richmond · St. Croix County |
191 | 0 | 0 | |
|
Blackwell Civilian Consvtn Ctr Laona · Forest County |
190 | 0 | 0 | |
|
Camp Deerhorn 1 Laundry Rhinelander · Oneida County |
190 | 0 | 0 | |
|
Camp Deerhorn 2 Office Rhinelander · Oneida County |
190 | 0 | 0 | |
|
Camp Deerhorn 3 Bath House Rhinelander · Oneida County |
190 | 0 | 0 | |
|
Door CO Y M C a North Fish Creek · Door County |
190 | 1 | 1 | |
|
Hahn Ace Mequon · Ozaukee County |
190 | 0 | 0 | |
|
Metallics Incorporated Onalaska · La Crosse County |
190 | 2 | 1 | |
|
ST Joan of Arc School Nashotah · Waukesha County |
190 | 0 | 0 | |
|
ST Peter Catholic Church & School Middleton · Dane County |
190 | 0 | 0 | |
|
WE HA Kee Camp Main Lodge Winter · Sawyer County |
190 | 0 | 0 | |
|
Wisconsin Auto Auction Lomira · Dodge County |
190 | 0 | 0 | |
|
Bethlehem Lutheran Church & Preschool Wales · Waukesha County |
188 | 1 | 0 | |
|
Antigo Bass Lake Country Club Hole #14 Deerbrook · Langlade County |
187 | 0 | 0 | |
|
Antigo Bass Lake Country Club Hole #3 Deerbrook · Langlade County |
187 | 0 | 0 | |
|
Lutherdale Bible Camp Dining Lodge Elkhorn · Walworth County |
187 | 0 | 0 | |
|
Lutherdale Bible Camp Main Office Elkhorn · Walworth County |
187 | 0 | 0 | |
|
Lutherdale Bible Camp Retreat Center Elkhorn · Walworth County |
187 | 0 | 0 | |
|
Rudolph Elementary School Rudolph · Wood County |
186 | 0 | 0 | |
|
Staples Lake Resort Comstock · Polk County |
186 | 0 | 0 | |
|
Hnr Intermediate School Rubicon · Dodge County |
185 | 0 | 0 | |
|
Juda Zion Community Church Juda · Green County |
185 | 0 | 0 | |
|
Priory the Eau Claire · Eau Claire County |
185 | 1 | 0 | |
|
Black Stone Creek Golf Club Germantown · Washington County |
183 | 1 | 1 | |
|
Camp Jcc Bayit Fredonia · Ozaukee County |
183 | 1 | 1 | |
|
Cottages at Cedar Run West Bend · Washington County |
183 | 3 | 1 | |
|
Cornerstone Church Prairie Du Chien · Crawford County |
182 | 1 | 1 | |
|
First Presbyterian Church Waunakee · Dane County |
182 | 0 | 0 | |
|
Whiskey Run New Glarus · Green County |
182 | 0 | 0 | |
|
Mount Hope Waterworks Mount Hope · Grant County |
181 | 2 | 0 | |
|
Agropur INC Luxemburg · Kewaunee County |
180 | 0 | 0 | |
|
Alliant Energy & Wp&l CO Maintenance Beloit · Rock County |
180 | 0 | 0 | |
|
Lad Lake Dousman · Waukesha County |
180 | 2 | 0 | |
|
Northwoods INC of Wisconsin Portage · Columbia County |
180 | 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.