All water systems in Wisconsin
11,026 systems
| System | Serves | Status | Rules violated, 3 yr | Unresolved |
|---|---|---|---|---|
|
Northwoods Bible Fellowship Lakewood Tn · Oconto County |
25 | 2 | 1 | |
|
Northwoods Market Rice Lake · Barron County |
25 | 0 | 0 | |
|
Northwoods Motel Hayward · Sawyer County |
25 | 0 | 0 | |
|
Northwoods Rest Motel St Germain · Vilas County |
25 | 0 | 0 | |
|
Northwoods Serenity LLC Presque Isle · Vilas County |
25 | 0 | 0 | |
|
Northwoods Store Tomahawk · Oneida County |
25 | 0 | 0 | |
|
Northwoods Zipline Minocqua · Oneida County |
25 | 0 | 0 | |
|
Not Bobs Bar Antigo · Langlade County |
25 | 0 | 0 | |
|
Nouryon Sports Complex Green Bay · Brown County |
25 | 0 | 0 | |
|
Nrcs/fsa/lcd Service Center Westfield · Marquette County |
25 | 0 | 0 | |
|
Nuf Noshery Bar Abrams Tn · Oconto County |
25 | 1 | 0 | |
|
Nut Zees Gleason · Lincoln County |
25 | 0 | 0 | |
|
Oak Avenue Pub & Grill Shawano · Shawano County |
25 | 1 | 0 | |
|
Oak Forest Center Frederic · Polk County |
25 | 1 | 0 | |
|
Oak Grove Cmpgd Neshkoro · Marquette County |
25 | 0 | 0 | |
|
Oak Grove Resort Big House Chetek · Barron County |
25 | 0 | 0 | |
|
Oak Grove Resort Lake Home Chetek · Barron County |
25 | 0 | 0 | |
|
Oak Grove Resort Main House Chetek · Barron County |
25 | 0 | 0 | |
|
Oak Ridge Campground Elcho · Langlade County |
25 | 0 | 0 | |
|
Oak Ridge Inn 2 Old Campground Danbury · Burnett County |
25 | 1 | 1 | |
|
Oak Ridge Inn Addition Danbury · Burnett County |
25 | 0 | 0 | |
|
Oak Ridge Inn New Campground Danbury · Burnett County |
25 | 1 | 1 | |
|
Oak Ridge Inn Tavern Danbury · Burnett County |
25 | 0 | 0 | |
|
Oak Shores Lake Side Cabins Hayward · Sawyer County |
25 | 1 | 0 | |
|
Oak Shores Parking Side Cabins Hayward · Sawyer County |
25 | 0 | 0 | |
|
Oakland New Town Hall Oakland · Douglas County |
25 | 0 | 0 | |
|
Oakwood Campsite Bathhouse Springwater Tn · Waushara County |
25 | 0 | 0 | |
|
Oakwood Campsite Tavern Springwater Tn · Waushara County |
25 | 0 | 0 | |
|
Oakwood Campsite Wendy Way Wild Rose · Waushara County |
25 | 0 | 0 | |
|
Oakwood Park Waupaca · Waupaca County |
25 | 1 | 1 | |
|
Oasis Church Tomah · Monroe County |
25 | 0 | 0 | |
|
Oasis Cmpgd & Waterpark Center Well Hancock · Waushara County |
25 | 0 | 0 | |
|
Oasis Cmpgd & Waterpark Pool & Lodge Well Hancock · Waushara County |
25 | 0 | 0 | |
|
Oasis Cmpgd Atv Shed Well Hncock · Waushara County |
25 | 0 | 0 | |
|
Oasis Cmpgd Highway Well Hancock · Waushara County |
25 | 0 | 0 | |
|
Oasis Inn Kenosha · Kenosha County |
25 | 0 | 0 | |
|
Oaw Indoor Sports Complex New Berlin · Waukesha County |
25 | 1 | 0 | |
|
Ocean Spray Cranberry INC Babcock · Wood County |
25 | 1 | 1 | |
|
Oconomowoc Town Hall Oconomowoc · Waukesha County |
25 | 0 | 0 | |
|
Oconto City Park Oconto Tn · Oconto County |
25 | 1 | 1 | |
|
Oconto Motel INC Oconto · Oconto County |
25 | 1 | 0 | |
|
Oconto River Park Pulcifer · Shawano County |
25 | 0 | 0 | |
|
Odin & Frejas Place Scandinavia · Waupaca County |
25 | 0 | 0 | |
|
Ogema Volunteer Fire Dept Ogema · Price County |
25 | 0 | 0 | |
|
Ohenrys Cmpgd Lower Well Genoa · Vernon County |
25 | 0 | 0 | |
|
Ojibwa Campground Winter · Sawyer County |
25 | 0 | 0 | |
|
Ojibwa Park Ojibwa · Sawyer County |
25 | 0 | 0 | |
|
OK Corral Park Falls · Price County |
25 | 0 | 0 | |
|
Okauchee Lions Park Okauchee · Waukesha County |
25 | 0 | 0 | |
|
Old Apostolic Lutheran Church Ashland · Ashland County |
25 | 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.