All water systems in Wisconsin
9,089 systems
| System | Serves | Status | Rules violated, 3 yr | Unresolved |
|---|---|---|---|---|
|
WI Dnr Indian Mds Cmpgd 5 Woodruff · Oneida County |
150 | 0 | 0 | |
|
WI Dnr Indian Mds Cmpgd 6 Woodruff · Oneida County |
150 | 0 | 0 | |
|
WI Dnr Kmsf Lapham Peak Homestead Hollow Delafield · Waukesha County |
150 | 1 | 0 | |
|
WI Dnr Kmsfnu Mauthe LK Contact Station Campbellsport · Fond du Lac County |
150 | 0 | 0 | |
|
WI Dnr Perrot 3 Sand Cliff Trempealeau · Trempealeau County |
150 | 0 | 0 | |
|
WI Dnr Star LK Cmpgd 25 B L Sayner · Vilas County |
150 | 0 | 0 | |
|
WI Dnr Star LK East 21 Boat Landing Sayner · Vilas County |
150 | 0 | 0 | |
|
WI Dnr Star LK East Cmpgd 22 Sayner · Vilas County |
150 | 0 | 0 | |
|
WI Dnr Star LK East Cmpgd 23 Sayner · Vilas County |
150 | 0 | 0 | |
|
WI Dnr Star LK West Cmpgd 24 Sayner · Vilas County |
150 | 0 | 0 | |
|
WI Dnr Starrett LK Cmpgd 30 BT Lndng Sayner · Vilas County |
150 | 1 | 1 | |
|
Woodside Ranch LLC East Mauston · Juneau County |
150 | 1 | 0 | |
|
Woodside Ranch LLC West Mauston · Juneau County |
150 | 0 | 0 | |
|
YMCA Camp Manitou South Wash House New Auburn · Chippewa County |
150 | 0 | 0 | |
|
Zion Evangelical Lutheran Church Allenton · Washington County |
150 | 0 | 0 | |
|
American Players Theatre -Touchstone Spring Green · Iowa County |
149 | 0 | 0 | |
|
Evergreen Lodge Boulder Jct · Vilas County |
149 | 0 | 0 | |
|
Kingdom Hall Jehovahs Witnesses Hudson · St. Croix County |
145 | 0 | 0 | |
|
Timber Lee Chris Ctr Oakridge Lodge East Troy · Walworth County |
144 | 0 | 0 | |
|
White Stone Community Church Oconomowoc · Waukesha County |
144 | 0 | 0 | |
|
Martintown Community Church Martintown · Green County |
142 | 0 | 0 | |
|
MT Horeb United Methodist Church Mount Horeb · Dane County |
142 | 0 | 0 | |
|
Oakwood Park Golf Course Franklin · Milwaukee County |
142 | 0 | 0 | |
|
Camp Evelyn Crystal House Well Plymouth · Sheboygan County |
141 | 0 | 0 | |
|
Camp Evelyn Gemini Bldgs Well Plymouth · Sheboygan County |
141 | 0 | 0 | |
|
Camp Evelyn Main Well Plymouth · Sheboygan County |
141 | 0 | 0 | |
|
New Testament Baptist Church Columbus · Columbia County |
141 | 0 | 0 | |
|
Timber Lee Chris Ctr Tamarack East Troy · Walworth County |
141 | 1 | 0 | |
|
59ers Driving Range Milton · Rock County |
140 | 0 | 0 | |
|
Bethany Lutheran Church Aniwa · Marathon County |
140 | 0 | 0 | |
|
Lake Valley Camp Dining Hall Boscobel · Crawford County |
140 | 0 | 0 | |
|
Moon Beach Camp Lodge Lower Saint Germain · Vilas County |
140 | 0 | 0 | |
|
Our Saviors Lutheran Church Beldenville · Pierce County |
140 | 0 | 0 | |
|
Phantom Lake YMCA Camp Mukwonago · Waukesha County |
140 | 0 | 0 | |
|
ST Ann Catholic Parish New Holstein · Calumet County |
140 | 0 | 0 | |
|
Timber Rdg Tnns & Golf Rstrnt Minocqua · Oneida County |
140 | 0 | 0 | |
|
West Madison Bible Church Verona · Dane County |
140 | 0 | 0 | |
|
WI Dnr Pike Lake Cmpgrd Hartford · Washington County |
140 | 1 | 0 | |
|
WI Dnr Sandy Bch LK Cmpgd 43 Park Falls · Iron County |
140 | 0 | 0 | |
|
WI Dnr Sandy Bch LK Cmpgd 44 Park Falls · Iron County |
140 | 0 | 0 | |
|
WI Dnr Sandy Bch LK Pic 42 Park Falls · Iron County |
140 | 0 | 0 | |
|
Wilkins Bone Lake Bar & Resort Luck · Polk County |
140 | 0 | 0 | |
|
Wisconsin Badger Camp Prairie Du Chien · Grant County |
140 | 0 | 0 | |
|
YMCA Camp Icaghowan Amery · Polk County |
140 | 1 | 1 | |
|
Camp Anokijig Over Look Lodge Plymouth · Sheboygan County |
138 | 0 | 0 | |
|
Kohls Floor Covering Cedarburg · Ozaukee County |
138 | 0 | 0 | |
|
Swartzendrubers Supper Club Antigo · Langlade County |
138 | 1 | 1 | |
|
Dollar General Lake Geneva Lake Geneva · Walworth County |
137 | 0 | 0 | |
|
Immanuel Evangelical Lutheran Waterloo · Dane County |
137 | 0 | 0 | |
|
Taliesin Main Building Spring Green · Iowa County |
137 | 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.