All water systems in Wisconsin
11,026 systems
| System | Serves | Status | Rules violated, 3 yr | Unresolved |
|---|---|---|---|---|
|
Nowhere Fredonia · Ozaukee County |
30 | 1 | 1 | |
|
Ntc Epdp Building Wausau · Marathon County |
30 | 0 | 0 | |
|
Oak Shores Club Fontana · Walworth County |
30 | 2 | 1 | |
|
Offroad Bar & Grill Fairchild · Jackson County |
30 | 0 | 0 | |
|
Oneida CO Enterprise Cpgd 1 East Well Rhinelander · Oneida County |
30 | 0 | 0 | |
|
Oneida CO Enterprise Cpgd 2 West Well Rhinelander · Oneida County |
30 | 0 | 0 | |
|
Ottawa Town Park Dousman · Waukesha County |
30 | 0 | 0 | |
|
Oxford VFW Post 6003 Oxford · Marquette County |
30 | 1 | 1 | |
|
Oxford Village Hall Oxford · Marquette County |
30 | 0 | 0 | |
|
Pea Pickin Flea Market St Croix Falls · Polk County |
30 | 0 | 0 | |
|
Pecks Corner, LLC Cashton · Monroe County |
30 | 1 | 1 | |
|
Peers Bar St Croix Falls · Polk County |
30 | 0 | 0 | |
|
Pharo Marine Waunakee · Dane County |
30 | 0 | 0 | |
|
Pier Rockbridge County Park Rockbridge · Richland County |
30 | 0 | 0 | |
|
Pine Grove Pub Pickerel · Forest County |
30 | 0 | 0 | |
|
Pine Grove Resort Pickerel · Forest County |
30 | 0 | 0 | |
|
Pine Lake Lodge Hurley · Iron County |
30 | 0 | 0 | |
|
Pine Point Lodge Iron River · Bayfield County |
30 | 0 | 0 | |
|
Pitts Place Saxon · Iron County |
30 | 0 | 0 | |
|
Pizza Time in the Old Firehouse Trevor · Kenosha County |
30 | 0 | 0 | |
|
Plover Cafe Plover · Portage County |
30 | 0 | 0 | |
|
Plum Lake Laundry Sayner · Vilas County |
30 | 0 | 0 | |
|
Portage Seventh Day Adventist Church Portage · Columbia County |
30 | 0 | 0 | |
|
Power Packer Westfield · Marquette County |
30 | 0 | 0 | |
|
Prince of Peace Covenant Church Mondovi · Eau Claire County |
30 | 0 | 0 | |
|
Putter UP Mini Golf Crivitz · Marinette County |
30 | 2 | 1 | |
|
PW Lake View Estates LLC Port Washington · Ozaukee County |
30 | 1 | 0 | |
|
Quail Hollow Condos Delafield · Waukesha County |
30 | 2 | 0 | |
|
Rainbow Lake Park Gilmanton · Buffalo County |
30 | 0 | 0 | |
|
Rancho los Girasoles Lake Mills · Jefferson County |
30 | 0 | 0 | |
|
Rays Market Colby · Marathon County |
30 | 0 | 0 | |
|
Red Rock Campground Birchwood · Rusk County |
30 | 0 | 0 | |
|
Red Tree Resort Phillips · Price County |
30 | 0 | 0 | |
|
Redmound Country Store Desoto · Vernon County |
30 | 0 | 0 | |
|
Refuah Rosholt · Portage County |
30 | 1 | 0 | |
|
Retzer Nature Center Waukesha · Waukesha County |
30 | 0 | 0 | |
|
Retzer Nature Center Maintenance Building Waukesha · Waukesha County |
30 | 0 | 0 | |
|
Ridgeland Village Park Ridgeland · Dunn County |
30 | 0 | 0 | |
|
Ridges Sanctuary Range Light Baileys Harbor · Door County |
30 | 2 | 0 | |
|
Riecks Lake Park 1 Alma · Buffalo County |
30 | 0 | 0 | |
|
Riesterer & Schnell Hortonville Hortonville · Outagamie County |
30 | 0 | 0 | |
|
River Vista Estates LLC Potosi · Grant County |
30 | 3 | 1 | |
|
River Wildlife Lodge Well Kohler · Sheboygan County |
30 | 0 | 0 | |
|
Rivers Edge Cmpgd North Well Stevens Point · Portage County |
30 | 0 | 0 | |
|
Rob & Hope's Low Rider Tavern Neillsville · Clark County |
30 | 0 | 0 | |
|
Rock Camping Resort Campground, the Mauston · Juneau County |
30 | 0 | 0 | |
|
Rock Falls Baptist Church Mondovi · Dunn County |
30 | 0 | 0 | |
|
Rock River Mobile Home Park Johnson Creek · Jefferson County |
30 | 4 | 1 | |
|
Rock Springs Artesian Well #1 Rock Springs · Sauk County |
30 | 0 | 0 | |
|
Rock Springs Artesian Well #2 Rock Springs · Sauk County |
30 | 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.