All water systems in Wisconsin
9,089 systems
| System | Serves | Status | Rules violated, 3 yr | Unresolved |
|---|---|---|---|---|
|
Crawfish Junction Johnson Creek · Jefferson County |
412 | 0 | 0 | |
|
Station 51 LLC Janesville · Rock County |
412 | 0 | 0 | |
|
Peace Lutheran Church Green Bay · Brown County |
411 | 0 | 0 | |
|
Agave Asador & Cantina Hartford · Washington County |
410 | 0 | 0 | |
|
Petenwell CO Park 10-West Pump House Arkdale · Adams County |
410 | 0 | 0 | |
|
Rock Falls Raceway Main Bldg Eau Claire · Dunn County |
410 | 0 | 0 | |
|
Sunset Harbor Lodi · Columbia County |
410 | 0 | 0 | |
|
Ehlenbachs Cheese Chalet De Forest · Dane County |
406 | 0 | 0 | |
|
ST Pauls EV Lutheran Church Ixonia · Jefferson County |
406 | 0 | 0 | |
|
Petenwell CO Park 9 Arkdale · Adams County |
405 | 0 | 0 | |
|
Welcome Mart Grafton · Ozaukee County |
405 | 0 | 0 | |
|
First Christian Church Kenosha · Kenosha County |
404 | 0 | 0 | |
|
Kenickys Public House Richfield · Washington County |
404 | 0 | 0 | |
|
Scenic View Country Club Slinger · Washington County |
403 | 0 | 0 | |
|
Ozaukee Congreg Church & Parish House Grafton · Ozaukee County |
402 | 0 | 0 | |
|
Luther Valley Church Beloit · Rock County |
401 | 0 | 0 | |
|
Ozaukee Congreg Fellowship Hall Grafton · Ozaukee County |
401 | 0 | 0 | |
|
ST James Cath CH Neshkoro · Marquette County |
401 | 0 | 0 | |
|
ST James Cath CH Hall Neshkoro · Marquette County |
401 | 0 | 0 | |
|
Camp Juniper Knoll East Troy · Walworth County |
400 | 0 | 0 | |
|
Camp Ramah Bet AM Conover · Vilas County |
400 | 0 | 0 | |
|
Camp Ramah Girls Well Conover · Vilas County |
400 | 0 | 0 | |
|
Camp Ramah Office Conover · Vilas County |
400 | 0 | 0 | |
|
Cascade Mtn Ski Daisy Restaurant Well Portage · Columbia County |
400 | 0 | 0 | |
|
Kickapoo Corners Family Restaurant Readstown · Vernon County |
400 | 1 | 1 | |
|
Lake Hallie Golf LLC Chippewa Falls · Chippewa County |
400 | 0 | 0 | |
|
Petenwell CO Park Atv Campground Arkdale · Adams County |
400 | 0 | 0 | |
|
Sand Valley Golf Resort Lido Pro Shelter & Bath Nekoosa · Adams County |
400 | 0 | 0 | |
|
Sand Valley Golf Resort Lido Pro Shop Nekoosa · Adams County |
400 | 0 | 0 | |
|
Sand Valley Golf Resort Mammoth Dunes Hole 15 Nekoosa · Adams County |
400 | 0 | 0 | |
|
Sand Valley Golf Resort Mammoth Dunes Turnstand Nekoosa · Adams County |
400 | 0 | 0 | |
|
Silver Birch Ranch Office & LK Cottage White Lake · Langlade County |
400 | 1 | 1 | |
|
Smolenski Park Mount Pleasant · Racine County |
400 | 1 | 1 | |
|
ST Johns EV Lutheran Church Oak Creek Oak Creek · Milwaukee County |
400 | 0 | 0 | |
|
WI Dnr Harrington Beach Shower Bldg Belgium · Ozaukee County |
400 | 1 | 0 | |
|
WI Dnr Kmsfnu Long Lake Pumphouse Cascade · Fond du Lac County |
400 | 2 | 1 | |
|
Wissota Express Chippewa Falls · Chippewa County |
400 | 0 | 0 | |
|
YMCA Camp ST Croix Dining Hall Hudson · St. Croix County |
400 | 0 | 0 | |
|
Tyrol Basin Chalet Mount Horeb · Dane County |
390 | 0 | 0 | |
|
Brown Street Market Place Oconomowoc · Waukesha County |
384 | 0 | 0 | |
|
WI Dnr Gov Dodge Twin Valley 200 Dodgeville · Iowa County |
375 | 0 | 0 | |
|
Culvers Elm Grove Elm Grove · Waukesha County |
372 | 0 | 0 | |
|
Lyster Lutheran Church Nelson · Buffalo County |
370 | 1 | 1 | |
|
Operating Engineers Training Ctr Coloma · Waushara County |
370 | 1 | 0 | |
|
Tiki Beach Resort Kml Campbellsport · Fond du Lac County |
370 | 0 | 0 | |
|
Boulder Creek Campground Bagley · Grant County |
368 | 1 | 1 | |
|
Camp Jcc Gym Fredonia · Ozaukee County |
368 | 0 | 0 | |
|
Minikani YMCA Camp Halquist Family Lodge Hubertus · Washington County |
364 | 0 | 0 | |
|
Shepherd of the Hills Church New Hubertus · Washington County |
364 | 0 | 0 | |
|
Station Ixonia Ixonia · Jefferson County |
360 | 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.