All water systems in Wisconsin
11,026 systems
| System | Serves | Status | Rules violated, 3 yr | Unresolved |
|---|---|---|---|---|
|
Mary Hill Park Sanitary Dist Fond Du Lac · Fond du Lac County |
65 | 2 | 1 | |
|
Miltrim Farms INC Athens · Marathon County |
65 | 1 | 0 | |
|
Milwaukee Stockyards, Dodge CO Reeseville · Dodge County |
65 | 0 | 0 | |
|
North Lake Yacht Club North Lake · Waukesha County |
65 | 0 | 0 | |
|
Northwoods Child Development Center Eagle River · Vilas County |
65 | 0 | 0 | |
|
NV Corners Sun Prairie · Dane County |
65 | 0 | 0 | |
|
Prince of Peace Lutheran Church Eagle River · Vilas County |
65 | 0 | 0 | |
|
Red Barn Theater Rice Lake · Barron County |
65 | 0 | 0 | |
|
Ritchie Implement Lancaster · Grant County |
65 | 3 | 1 | |
|
Rote Oil & Dousman Transport CO Lake Geneva · Walworth County |
65 | 0 | 0 | |
|
Settlement Courtyard Inn Fish Creek · Door County |
65 | 1 | 0 | |
|
Seven Acre Dairy CO Belleville · Dane County |
65 | 0 | 0 | |
|
Sheboygan CO Airport Sheboygan Falls · Sheboygan County |
65 | 0 | 0 | |
|
Sip Ephraim · Door County |
65 | 0 | 0 | |
|
ST Agnes Parish Hall Amberg · Marinette County |
65 | 2 | 0 | |
|
ST Matthews Catholic Church Neosho · Dodge County |
65 | 0 | 0 | |
|
Subway Sandwiches Pioneer Mall Westfield · Marquette County |
65 | 2 | 1 | |
|
Team Winnebagoland Oshkosh · Winnebago County |
65 | 0 | 0 | |
|
U S F S Forestry Sciences Laboratory Rhinelander · Oneida County |
65 | 1 | 1 | |
|
Utica Bar Cambridge · Dane County |
65 | 0 | 0 | |
|
Verona Town Hall Verona · Dane County |
65 | 0 | 0 | |
|
Walgreens Wales Wales · Waukesha County |
65 | 0 | 0 | |
|
WI Dnr Chippewa Moraine Ice Age Center Chippewa Falls · Chippewa County |
65 | 0 | 0 | |
|
Wissota Lodge and Event Center Chippewa Falls · Chippewa County |
65 | 0 | 0 | |
|
Acton Academy Main Oshkosh · Winnebago County |
64 | 1 | 0 | |
|
Dollar General Store #16673 Amherst · Portage County |
64 | 0 | 0 | |
|
Duncan Prairie MHC Bloomer · Chippewa County |
64 | 0 | 0 | |
|
Grande Custom Ingredients Juda · Green County |
64 | 8 | 2 | |
|
Hayes Haus Resort Fox Lake · Dodge County |
64 | 0 | 0 | |
|
Heartland Montessori School River Falls · Pierce County |
64 | 0 | 0 | |
|
Hilltop Estates MHP River Falls · St. Croix County |
64 | 0 | 0 | |
|
Howards Grove Childrens Center Howards Grove · Sheboygan County |
64 | 1 | 1 | |
|
IN the Pines High Cap Well Lyndon Station · Juneau County |
64 | 0 | 0 | |
|
Lake Country Unitarian Universalist Church Hartland · Waukesha County |
64 | 0 | 0 | |
|
Lake of the Woods Cmpgd Main Complex Wautoma · Marquette County |
64 | 0 | 0 | |
|
Lake of the Woods Cmpgd Pool Bldg Wautoma · Marquette County |
64 | 0 | 0 | |
|
Midway Roadhouse Bar Sun Prairie · Dane County |
64 | 0 | 0 | |
|
Otter Creek Landscaping & Garden Plymouth · Sheboygan County |
64 | 0 | 0 | |
|
Riverside Energy Center Beloit · Rock County |
64 | 0 | 0 | |
|
Sandstone Building Eau Claire · Eau Claire County |
64 | 0 | 0 | |
|
Scenic Ridge Campground Basement House Well Whitewater · Walworth County |
64 | 0 | 0 | |
|
Skygen USA Mequon · Ozaukee County |
64 | 0 | 0 | |
|
Greenfield Pub New Berlin · Waukesha County |
63 | 0 | 0 | |
|
Hillside County |
63 | 3 | 0 | |
|
Luis Pizza Lake Geneva · Walworth County |
63 | 0 | 0 | |
|
Meadows Family Restaurant Franksville · Racine County |
63 | 1 | 1 | |
|
Petes Bar Fort Atkinson · Jefferson County |
63 | 0 | 0 | |
|
Segway the Door Tours & Backroads Deli Fish Creek · Door County |
63 | 0 | 0 | |
|
Toast Cedarburg · Ozaukee County |
63 | 1 | 1 | |
|
Walkers Silvermoon Alma · Buffalo County |
63 | 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.