All water systems in Wisconsin
11,026 systems
| System | Serves | Status | Rules violated, 3 yr | Unresolved |
|---|---|---|---|---|
|
Maine Water Utility Wausau · Marathon County |
271 | 2 | 1 | |
|
Club Ten Durand · Pepin County |
270 | 0 | 0 | |
|
Nlc Energy Denmark Denmark · Brown County |
270 | 0 | 0 | |
|
The Fields of Clover Hill Golf Course Lomira · Dodge County |
270 | 0 | 0 | |
|
ST Pauls School Muskego · Waukesha County |
269 | 0 | 0 | |
|
Washington School Waterford · Racine County |
266 | 0 | 0 | |
|
Cedar Valley Cheese Belgium · Ozaukee County |
265 | 0 | 0 | |
|
Culvers Town & Country C Store Sturgeon Bay · Door County |
265 | 1 | 1 | |
|
Dancing Horses Game Room Delavan · Walworth County |
265 | 0 | 0 | |
|
Dancing Horses Stage Barn Delavan · Walworth County |
265 | 0 | 0 | |
|
New House Richland Richland Center · Richland County |
265 | 0 | 0 | |
|
Sheldon Water Utility Sheldon · Rusk County |
265 | 6 | 1 | |
|
WI Dnr Blue Mound Aquatic Center Blue Mounds · Iowa County |
265 | 0 | 0 | |
|
Genoa Waterworks Genoa · Vernon County |
264 | 4 | 2 | |
|
Peace Lutheran Church New Berlin · Waukesha County |
262 | 0 | 0 | |
|
Adams Lutheran Church Argyle · Green County |
260 | 0 | 0 | |
|
Marshfield Clinic Woodruff Center Woodruff · Oneida County |
260 | 0 | 0 | |
|
North Bristol Sportsman Club Sun Prairie · Dane County |
260 | 0 | 0 | |
|
Park Place Subdivision Mequon · Ozaukee County |
260 | 0 | 0 | |
|
Pleasant View Nursing Home Monroe · Green County |
260 | 0 | 0 | |
|
Schreiber Foods INC West Bend · Washington County |
260 | 1 | 1 | |
|
Somers United Church of Christ & Busy Bee Child Care Center Kenosha · Kenosha County |
260 | 1 | 1 | |
|
Westbury Bank Germantown · Washington County |
260 | 1 | 1 | |
|
Willow Haven Hazelhurst · Oneida County |
260 | 0 | 0 | |
|
ST Andrew Lutheran Church West Bend · Washington County |
259 | 0 | 0 | |
|
Camp Jcc Pool & Lodge Fredonia · Ozaukee County |
258 | 0 | 0 | |
|
Little Dumplings Early Learning Center Oconomowoc · Waukesha County |
258 | 0 | 0 | |
|
ST Martin of Tours Cong Franklin · Milwaukee County |
258 | 0 | 0 | |
|
North Shore Chophouse Fort Atkinson · Jefferson County |
257 | 0 | 0 | |
|
Browntown Waterworks Browntown · Green County |
256 | 7 | 1 | |
|
Immanuel Lutheran Church Watertown · Dodge County |
256 | 0 | 0 | |
|
White Lake Waterworks White Lake · Langlade County |
256 | 0 | 0 | |
|
Yogi Bears Jellystone Park #1 Comfort Station Wisconsin Dells · Sauk County |
256 | 0 | 0 | |
|
Yogi Bears Jellystone Park #2 Comfort Station Wisconsin Dells · Sauk County |
256 | 1 | 1 | |
|
Yogi Bears Jellystone Park #3 Comfort Station Wisconsin Dells · Sauk County |
256 | 0 | 0 | |
|
Gieses Country Market Van Dyne · Fond du Lac County |
255 | 0 | 0 | |
|
Hidden Glen Golf Course Clubhouse Cedarburg · Washington County |
255 | 0 | 0 | |
|
Maine Elementary School Wausau · Marathon County |
255 | 2 | 1 | |
|
Rio Lobo LLC Weyauwega · Waupaca County |
255 | 0 | 0 | |
|
WI Dells KOA Campground Lower Well Wisconsin Dells · Sauk County |
255 | 0 | 0 | |
|
WI Dells KOA Campground Upper Well Wisconsin Dells · Sauk County |
255 | 0 | 0 | |
|
WI Dnr Devils Lake South Shore Shelter Baraboo · Sauk County |
255 | 0 | 0 | |
|
Newville Travel Centersubway Edgerton · Rock County |
254 | 0 | 0 | |
|
Red Cabin at Green Acres Fond Du Lac · Fond du Lac County |
254 | 2 | 0 | |
|
ST Lawrence Church Hartford · Washington County |
254 | 0 | 0 | |
|
Stoney Acres Athens · Marathon County |
254 | 0 | 0 | |
|
WI Dnr Wyalusing Visitors Station Bagley · Grant County |
254 | 1 | 0 | |
|
Antigo Bass Lake Country Club Deerbrook · Langlade County |
253 | 1 | 1 | |
|
Cornerstone Church Grafton · Ozaukee County |
253 | 0 | 0 | |
|
Eden Elementary School Eden · Fond du Lac County |
253 | 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.