All water systems in Wisconsin
9,089 systems
| System | Serves | Status | Rules violated, 3 yr | Unresolved |
|---|---|---|---|---|
|
Wilderness Cmpgd EE Area Buffalo Tn · Marquette County |
100 | 0 | 0 | |
|
Winding River Cmpgd New Lisbon · Juneau County |
100 | 0 | 0 | |
|
Windsor Barnes · Bayfield County |
100 | 0 | 0 | |
|
Wisconsin Riverside Campground Wading Pond Well Spring Green · Sauk County |
100 | 0 | 0 | |
|
Wood Lake Camp and Retreat Center 2 Chapel Well Grantsburg · Burnett County |
100 | 0 | 0 | |
|
Woodbine Inn Necedah · Juneau County |
100 | 0 | 0 | |
|
Woodhaven Resort LLC Hayward · Sawyer County |
100 | 1 | 1 | |
|
YMCA Camp Alexander 1 Shower Bldg Wisconsin Rapids · Wood County |
100 | 0 | 0 | |
|
YMCA Camp Alexander 3 Lester Wisconsin Rapids · Wood County |
100 | 0 | 0 | |
|
YMCA Camp Jorn Health Center Manitowish Waters · Vilas County |
100 | 0 | 0 | |
|
YMCA Camp Nawakwa 1 North Camp Lodge Lac Du Flambeau · Vilas County |
100 | 0 | 0 | |
|
YMCA Camp Nawakwa S Camp Shower House Well Lac Du Flambeau · Vilas County |
100 | 0 | 0 | |
|
YMCA Camp Nawakwa S Oriole Flicker Lac Du Flambeau · Vilas County |
100 | 0 | 0 | |
|
Knowles FD & ST Lukes Church Lomira · Dodge County |
99 | 0 | 0 | |
|
Lac DU Flambeau Tribal Campgrd County |
99 | 2 | 0 | |
|
Waste Management Southeast Wisconsin Franklin · Milwaukee County |
99 | 0 | 0 | |
|
Evansville Golf Club Clubhouse Evansville · Rock County |
98 | 0 | 0 | |
|
Fish Creek Cmpgd Fish Creek · Door County |
98 | 0 | 0 | |
|
Garden Center Mukwonago · Waukesha County |
98 | 0 | 0 | |
|
ST Johns Evangelical Lutheran Hill Point · Sauk County |
98 | 0 | 0 | |
|
ST Johns Lutheran Church Grafton · Ozaukee County |
98 | 0 | 0 | |
|
Emr LLC Dba 5 Corners Truck & Auto Cedarburg · Ozaukee County |
97 | 0 | 0 | |
|
Full Gospel Church West Bend · Washington County |
97 | 0 | 0 | |
|
Edgewater Supper Club Jefferson · Jefferson County |
96 | 0 | 0 | |
|
Busseyville Park Fort Atkinson · Jefferson County |
95 | 0 | 0 | |
|
Duck Inn MHP 1 Mecan Tn · Marquette County |
95 | 0 | 0 | |
|
Gfl Environmental Office Muskego · Waukesha County |
95 | 0 | 0 | |
|
Harrison Vil of Athletic Field Menasha · Calumet County |
95 | 0 | 0 | |
|
Lucky Chuckys Beach Bar and Grill Oconomowoc · Waukesha County |
95 | 0 | 0 | |
|
ST Germain Subway Saint Germain · Vilas County |
95 | 0 | 0 | |
|
Treeland Resort Cottages Cottage Side Hayward · Sawyer County |
95 | 0 | 0 | |
|
Veolia ES Solid Waste Midwest Muskego · Waukesha County |
95 | 0 | 0 | |
|
Willow Creek BP Germantown · Washington County |
95 | 2 | 0 | |
|
Faith Baptist Church & High School Waukesha Waukesha · Waukesha County |
94 | 0 | 0 | |
|
First Congregational Church Genesee Ucc Genesee · Waukesha County |
94 | 0 | 0 | |
|
Deer Valley Golf Course Barneveld · Iowa County |
93 | 0 | 0 | |
|
ST Adalbert Catholic Church Rosholt · Portage County |
93 | 2 | 0 | |
|
Terrace Shores EV Free CH Markesan · Green Lake County |
93 | 0 | 0 | |
|
Associated Training Services (diesel Driving School) Sun Prairie · Dane County |
92 | 0 | 0 | |
|
Christ Alone South Campus Mequon · Ozaukee County |
92 | 0 | 0 | |
|
Elton Mall and Cafe Elton · Langlade County |
92 | 0 | 0 | |
|
House in the Wood Delavan · Walworth County |
92 | 0 | 0 | |
|
Hillcrest Bible Church Oregon · Dane County |
91 | 0 | 0 | |
|
Sassy Cow Creamery Store Columbus · Columbia County |
91 | 0 | 0 | |
|
Assumption Catholic Church Somerset · Polk County |
90 | 0 | 0 | |
|
Bad Axe Lutheran Church Viroqua · Vernon County |
90 | 0 | 0 | |
|
Bone Lake Lutheran Church Luck · Polk County |
90 | 0 | 0 | |
|
Camp Nan a BO Sho Med Bldg Lakewood Tn · Oconto County |
90 | 0 | 0 | |
|
Camp Phillips Boy Scouts 3 Sourdough Haugen · Barron County |
90 | 0 | 0 | |
|
Camp Phillips Boy Scouts 5 Thunderbird Haugen · Barron County |
90 | 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.