All water systems in Wisconsin
11,026 systems
| System | Serves | Status | Rules violated, 3 yr | Unresolved |
|---|---|---|---|---|
|
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 | |
|
Woodridge Estates Mequon · Ozaukee County |
100 | 3 | 1 | |
|
Wyngate Subdivision Mequon · Ozaukee County |
100 | 0 | 0 | |
|
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 | |
|
Zoar County |
100 | 0 | 0 | |
|
Aztalan Bio Johnson Creek · Jefferson County |
99 | 3 | 1 | |
|
Bel Mar Offices I & II Mequon · Ozaukee County |
99 | 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 | |
|
Country Aire Mobile Home Court LLC New Holstein · Calumet County |
98 | 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 | |
|
Ozaukee Daycare Center Ulao 2 Grafton · Ozaukee County |
98 | 1 | 1 | |
|
ST Johns Evangelical Lutheran Hill Point · Sauk County |
98 | 0 | 0 | |
|
ST Johns Lutheran Church Grafton · Ozaukee County |
98 | 0 | 0 | |
|
Wiota Sanitary District South Wayne · Lafayette County |
98 | 2 | 0 | |
|
Burlington Northern Santa FE Taconite Facility Superior · Douglas County |
97 | 1 | 0 | |
|
Emr LLC Dba 5 Corners Truck & Auto Cedarburg · Ozaukee County |
97 | 0 | 0 | |
|
Full Gospel Church West Bend · Washington County |
97 | 0 | 0 | |
|
Pirco MHP Wisconsin Rapids · Wood County |
97 | 3 | 1 | |
|
Smart Sand INC Main Office Tomah · Monroe County |
97 | 0 | 0 | |
|
Countryside Estates MHC Fall Creek · Eau Claire County |
96 | 1 | 1 | |
|
Edgewater Supper Club Jefferson · Jefferson County |
96 | 0 | 0 | |
|
Elm Grove Preschool & Child Care Elm Grove · Waukesha County |
96 | 0 | 0 | |
|
New World Montessori School Mequon · Ozaukee County |
96 | 0 | 0 | |
|
Rock Prairie Montessori School Janesville · Rock County |
96 | 0 | 0 | |
|
Andersons Trailer Court Rice Lake · Barron County |
95 | 7 | 4 | |
|
Busseyville Park Fort Atkinson · Jefferson County |
95 | 0 | 0 | |
|
Cedar Falls Acres MHP Menomonie · Dunn County |
95 | 1 | 0 | |
|
Crown of Life EV Lutheran Sch & CH Hubertus · Washington County |
95 | 1 | 0 | |
|
Donges Bay 5401 Mequon · Ozaukee 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 | |
|
Lee Precision INC Hartford · Washington County |
95 | 0 | 0 | |
|
Lucky Chuckys Beach Bar and Grill Oconomowoc · Waukesha County |
95 | 0 | 0 | |
|
Manitou Falls Sanitary District NO 1 Superior · Douglas County |
95 | 10 | 5 | |
|
New Richmond Estates New Richmond · St. Croix County |
95 | 0 | 0 | |
|
River Cities High School Wisconsin Rapids · Wood County |
95 | 0 | 0 | |
|
S&s Jerseyland Dairy Sturgeon Bay · Door County |
95 | 0 | 0 | |
|
ST Germain Subway Saint Germain · Vilas County |
95 | 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.