All water systems in Wisconsin
9,089 systems
| System | Serves | Status | Rules violated, 3 yr | Unresolved |
|---|---|---|---|---|
|
Western Woods Cmpgd Wisconsin Dells · Juneau County |
40 | 0 | 0 | |
|
Whiskey Way Chetek · Barron County |
40 | 0 | 0 | |
|
White Birch Village Boulder Junction · Vilas County |
40 | 0 | 0 | |
|
WI Dnr Copper Falls Picnic Area and Campground N Mellen · Ashland County |
40 | 2 | 1 | |
|
WI Dnr Kmsfnu Butler LK Cascade · Sheboygan County |
40 | 0 | 0 | |
|
WI Dnr Kmsfnu Lizard Mound State Park West Bend · Washington County |
40 | 0 | 0 | |
|
WI Dnr Kmsfnu Parnell Tower Plymouth · Sheboygan County |
40 | 1 | 0 | |
|
WI Dnr Nelson Dewey Campground Cassville · Grant County |
40 | 0 | 0 | |
|
Wild River Outfitters Grantsburg · Burnett County |
40 | 0 | 0 | |
|
Wildwood Haven Resort and Campground Mellen · Ashland County |
40 | 0 | 0 | |
|
Winterhaven 3 Boot Lake Well Bruce · Rusk County |
40 | 0 | 0 | |
|
YMCA Camp Wabansi Brussels · Door County |
40 | 2 | 1 | |
|
Zwingli United Church of Christ Belleville [paoli] · Dane County |
40 | 0 | 0 | |
|
Curve in Bar Kewaskum · Fond du Lac County |
39 | 0 | 0 | |
|
Dbp Petroleum C LLC Union Grove · Racine County |
39 | 0 | 0 | |
|
Gibraltar Noble House & Annex Fish Creek · Door County |
39 | 0 | 0 | |
|
Hotel Washington & Studios Washington Island · Door County |
39 | 1 | 1 | |
|
Koenecke Ford Mercury Reedsburg · Sauk County |
39 | 1 | 1 | |
|
Lake of the Woods Back Bath House Wautoma · Marquette County |
39 | 0 | 0 | |
|
McDaniel Eye Center Howards Grove · Sheboygan County |
39 | 0 | 0 | |
|
Merton Town Library North Lake · Waukesha County |
39 | 0 | 0 | |
|
Mezzanine Egg Harbor · Door County |
39 | 3 | 1 | |
|
Michael Todds Delavan · Walworth County |
39 | 0 | 0 | |
|
Patio LLC and One Star Burgers LLC Sister Bay · Door County |
39 | 0 | 0 | |
|
Sand Haven Cmpgd Lodge New Auburn · Chippewa County |
39 | 0 | 0 | |
|
SB Olson Properties Wind Lake · Racine County |
39 | 0 | 0 | |
|
YMCA Camp Pepin Lodge Stockholm · Pepin County |
39 | 0 | 0 | |
|
Bank of Deerfield Deerfield · Dane County |
38 | 0 | 0 | |
|
Breezy Hill Campground Main Well Fond Du Lac · Fond du Lac County |
38 | 0 | 0 | |
|
Candys Pub West Bend · Washington County |
38 | 0 | 0 | |
|
Cornerstone Restaurant Genesee Depot · Waukesha County |
38 | 1 | 0 | |
|
Dodge CO Airport Juneau · Dodge County |
38 | 0 | 0 | |
|
Dollar General Store #14069 Galesville · Trempealeau County |
38 | 0 | 0 | |
|
Echo Bay Resort Birchwood · Sawyer County |
38 | 0 | 0 | |
|
Fireside Restaurant Egg Harbor · Door County |
38 | 2 | 1 | |
|
International Crane Foundation Office Baraboo · Sauk County |
38 | 0 | 0 | |
|
Jerome Drugs & Corner Market Big Bend · Waukesha County |
38 | 0 | 0 | |
|
Lotters BP Pickerel · Langlade County |
38 | 1 | 1 | |
|
Old Schoolhouse Special Events Merrimac · Sauk County |
38 | 1 | 1 | |
|
Pine Forest Lodge Mercer · Iron County |
38 | 1 | 1 | |
|
R Bar Cross Plains · Dane County |
38 | 0 | 0 | |
|
Shed the De Forest · Dane County |
38 | 0 | 0 | |
|
Shore Acres Homes Dyckesville · Brown County |
38 | 0 | 0 | |
|
Shorewood Village Shops Ephraim · Door County |
38 | 2 | 1 | |
|
Skellys Farm Market LLC Janesville · Rock County |
38 | 0 | 0 | |
|
Tri-County Motel Whitewater · Jefferson County |
38 | 0 | 0 | |
|
U S N P Apostle IS Little Sand Bay Lsw01 Bayfield · Bayfield County |
38 | 0 | 0 | |
|
Upper Mississippi National Wildlife Refuge Visitor Center Onalaska · La Crosse County |
38 | 0 | 0 | |
|
Vojtiks Stockyard Fairchild · Eau Claire County |
38 | 0 | 0 | |
|
Waas Boring & Cable INC Lomira · Dodge County |
38 | 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.