All water systems in Wisconsin
11,026 systems
| System | Serves | Status | Rules violated, 3 yr | Unresolved |
|---|---|---|---|---|
|
Lake Drive Water Trust Oconomowoc · Waukesha County |
500 | 2 | 0 | |
|
Lake Holcombe Convenience Store Holcombe · Chippewa County |
500 | 1 | 1 | |
|
Lake Joy Showers and Laundry Belmont · Lafayette County |
500 | 0 | 0 | |
|
Lake Wissota Golf Chippewa Falls · Chippewa County |
500 | 0 | 0 | |
|
Pioneer Westfield High Sch Westfield · Marquette County |
500 | 0 | 0 | |
|
Rosewood Dinner Theater Delavan · Walworth County |
500 | 0 | 0 | |
|
Sand Valley Golf Resort Hole 11 Nekoosa · Adams County |
500 | 1 | 0 | |
|
Scouting America Camp Tesomas Program Center and Dining Hall Rhinelander · Oneida County |
500 | 0 | 0 | |
|
ST Michaels Catholic Parish Hewitt · Wood County |
500 | 0 | 0 | |
|
Sunburst Ski Area Kewaskum · Washington County |
500 | 0 | 0 | |
|
Sunburst Snowtubing Area Kewaskum · Washington County |
500 | 0 | 0 | |
|
Three Lakes Sanitary District Three Lakes · Oneida County |
500 | 6 | 1 | |
|
Waldo Waterworks Waldo · Sheboygan County |
500 | 0 | 0 | |
|
WI Dnr Blue Mound Upper Well Blue Mounds · Iowa County |
500 | 0 | 0 | |
|
WI Dnr Devils Lake Upper Ice Age Campground Baraboo · Sauk County |
500 | 1 | 0 | |
|
WI Dnr Gov Dodge Cox Hollow Picnic Dodgeville · Iowa County |
500 | 0 | 0 | |
|
WI Dot Wayside 17 West Point Lodi · Columbia County |
500 | 0 | 0 | |
|
WI Dot Wayside 2 Orange Camp Douglas Camp Douglas · Juneau County |
500 | 0 | 0 | |
|
Bay City Waterworks Bay City · Pierce County |
499 | 0 | 0 | |
|
Auburndale High School Auburndale · Wood County |
498 | 1 | 1 | |
|
Taylor Waterworks Taylor · Jackson County |
498 | 0 | 0 | |
|
Raymond School Franksville · Racine County |
497 | 1 | 1 | |
|
Camp Forest Springs Neale Lodge & Main Camp Westboro · Taylor County |
495 | 0 | 0 | |
|
Holland TN Sanitary Dist Town Of Holland · Brown County |
495 | 1 | 1 | |
|
Gays Mills Waterworks Gays Mills · Crawford County |
490 | 4 | 1 | |
|
Wilton Waterworks Wilton · Monroe County |
490 | 1 | 0 | |
|
Bayfield Waterworks Bayfield · Bayfield County |
488 | 1 | 1 | |
|
Alma Center Waterworks Alma Center · Jackson County |
487 | 2 | 1 | |
|
Forest Junction Pub Util Forest Junction · Calumet County |
487 | 2 | 1 | |
|
Knapp Waterworks Knapp · Dunn County |
486 | 2 | 0 | |
|
Auburndale Elementary School Auburndale · Wood County |
485 | 1 | 1 | |
|
Riverview School Silver Lake · Kenosha County |
485 | 0 | 0 | |
|
Lakeview Specialty Hospital Waterford · Racine County |
484 | 9 | 2 | |
|
Lakeview School Wind Lake · Racine County |
480 | 3 | 1 | |
|
Mount Calvary Waterworks Mount Calvary · Fond du Lac County |
478 | 0 | 0 | |
|
South Wayne Waterworks South Wayne · Lafayette County |
478 | 0 | 0 | |
|
Synergy Cooperative Ridgeland Ridgeland · Dunn County |
475 | 0 | 0 | |
|
Tremain Mobile Home Park Dousman · Jefferson County |
475 | 4 | 1 | |
|
Wheatland Center School Burlington · Kenosha County |
475 | 0 | 0 | |
|
Brandybrook Subdivision Wales · Waukesha County |
474 | 1 | 0 | |
|
Lyndon Station Waterworks Lyndon Station · Juneau County |
474 | 1 | 1 | |
|
ST Cloud Waterworks St Cloud · Fond du Lac County |
471 | 2 | 0 | |
|
House on the Rock Resort Spring Green · Iowa County |
470 | 1 | 0 | |
|
Stone Bank School Oconomowoc · Waukesha County |
470 | 0 | 0 | |
|
WI Dnr Lake Wissota Cmpgd Chippewa Falls · Chippewa County |
469 | 0 | 0 | |
|
Road America Center Well Plymouth · Sheboygan County |
468 | 0 | 0 | |
|
Road America GO Cart Campground Well Plymouth · Sheboygan County |
468 | 0 | 0 | |
|
Road America Midway Restroom Well Plymouth · Sheboygan County |
468 | 0 | 0 | |
|
Road America Office North Well Plymouth · Sheboygan County |
468 | 0 | 0 | |
|
Road America Paddock Shop Plymouth · Sheboygan County |
468 | 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.