All water systems in Wisconsin
11,026 systems
| System | Serves | Status | Rules violated, 3 yr | Unresolved |
|---|---|---|---|---|
|
Carls Shell/taco Johns Edgerton · Rock County |
520 | 0 | 0 | |
|
J J Keller Vinland Plant Neenah · Winnebago County |
520 | 0 | 0 | |
|
ST Croix Natl Golf Course Somerset · St. Croix County |
520 | 0 | 0 | |
|
China One Ripon · Fond du Lac County |
517 | 0 | 0 | |
|
Suring Waterworks Suring · Oconto County |
517 | 3 | 1 | |
|
Plymouth Rock Resort 600 Area Well Plymouth · Sheboygan County |
516 | 0 | 0 | |
|
Plymouth Rock Resort Main Well Plymouth · Sheboygan County |
516 | 0 | 0 | |
|
Plymouth Rock Resort Pool 1 Plymouth · Sheboygan County |
516 | 0 | 0 | |
|
Plymouth Rock Resort Pool 2 Plymouth · Sheboygan County |
516 | 0 | 0 | |
|
Plymouth Rock Resort Pool 3 Plymouth · Sheboygan County |
516 | 0 | 0 | |
|
Addison Elementary School Hartford · Washington County |
515 | 0 | 0 | |
|
Vesper Waterworks Vesper · Wood County |
512 | 0 | 0 | |
|
Hope Lake Country Church Oconomowoc · Waukesha County |
511 | 0 | 0 | |
|
Adell Waterworks Adell · Sheboygan County |
510 | 0 | 0 | |
|
Clark County Rehabilitation & Living Center Owen · Clark County |
510 | 5 | 1 | |
|
Lakeview Mart Fond Du Lac · Fond du Lac County |
510 | 0 | 0 | |
|
ST Francis Borgia Catholic Church Cedarburg · Ozaukee County |
510 | 0 | 0 | |
|
Sunburst Ski Area Maint Shop Kewaskum · Washington County |
510 | 0 | 0 | |
|
Waynes Drive-In Cedarburg · Ozaukee County |
510 | 0 | 0 | |
|
Emanuel Bne Jeshrun Center River Hills · Milwaukee County |
509 | 1 | 1 | |
|
MT Zion Christian Church Lake Geneva · Walworth County |
509 | 2 | 1 | |
|
Big Bend Elementary School Big Bend · Waukesha County |
507 | 0 | 0 | |
|
Zion EV Lutheran Church of Leeds Arlington · Columbia County |
507 | 0 | 0 | |
|
Lazy Days Area C & Lower D West Bend · Washington County |
506 | 0 | 0 | |
|
Withee Waterworks Withee · Clark County |
506 | 0 | 0 | |
|
Burger King Waukesha Waukesha · Waukesha County |
505 | 0 | 0 | |
|
Holy Trinity Church & Learning Center Oconomowoc · Waukesha County |
505 | 1 | 1 | |
|
Milton KOA RV Resort Milton · Rock County |
505 | 0 | 0 | |
|
ST Edward Sch & CH Appleton · Outagamie County |
505 | 0 | 0 | |
|
WI Dnr Mirror Lake Office/shop Baraboo · Sauk County |
505 | 0 | 0 | |
|
Linn Presbyterian Church Lake Geneva · Walworth County |
504 | 0 | 0 | |
|
Rstore #4518 Plymouth · Sheboygan County |
504 | 0 | 0 | |
|
Perry Lutheran Church Mount Horeb · Dane County |
503 | 0 | 0 | |
|
ST Joseph San Dist 1 La Crosse · La Crosse County |
503 | 0 | 0 | |
|
Alto Reformed Church Waupun · Fond du Lac County |
502 | 0 | 0 | |
|
Missing Links Golf Range Mequon · Ozaukee County |
502 | 0 | 0 | |
|
Northport Mart New London · Waupaca County |
502 | 0 | 0 | |
|
WI Dnr Mirror Lake Sandstone Ridge Baraboo · Sauk County |
501 | 0 | 0 | |
|
Belle Ame Vineyard River Falls · Pierce County |
500 | 0 | 0 | |
|
Benson Corners Preet Petroleum & Pizza Time Bristol · Kenosha County |
500 | 0 | 0 | |
|
Bulls Eye Golf Club Wisconsin Rapids · Wood County |
500 | 0 | 0 | |
|
Calumet CO Park Showers Hilbert · Calumet County |
500 | 0 | 0 | |
|
Caseys General Store #3775 Rochester · Racine County |
500 | 0 | 0 | |
|
Country Estates Sanitary District Town of Lyons 1 Burlington · Walworth County |
500 | 0 | 0 | |
|
Drummond Sanitary District Drummond · Bayfield County |
500 | 1 | 1 | |
|
Eastbay Holcombe · Chippewa County |
500 | 0 | 0 | |
|
Fischer Park-East Burlington · Racine County |
500 | 0 | 0 | |
|
Fischer Park-West Burlington · Racine County |
500 | 0 | 0 | |
|
Hingham Church Hingham · Sheboygan County |
500 | 0 | 0 | |
|
Interlaken Resort and Village Lake Geneva · Walworth County |
500 | 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.