All water systems in Wisconsin
11,026 systems
| System | Serves | Status | Rules violated, 3 yr | Unresolved |
|---|---|---|---|---|
|
Road America Paddock South Well Plymouth · Sheboygan County |
468 | 0 | 0 | |
|
Road America Turn 3 Well Plymouth · Sheboygan County |
468 | 0 | 0 | |
|
Road America Turn 4 Well Plymouth · Sheboygan County |
468 | 0 | 0 | |
|
Road America Turn 6 Well Plymouth · Sheboygan County |
468 | 0 | 0 | |
|
Road America Turn 7 Well Plymouth · Sheboygan County |
468 | 0 | 0 | |
|
Road America Vip Building Well Plymouth · Sheboygan County |
468 | 0 | 0 | |
|
Delafield Hotel Delafield · Waukesha County |
465 | 0 | 0 | |
|
Jakes Mobil Janesville · Rock County |
465 | 0 | 0 | |
|
Glenbeulah Waterworks Glenbeulah · Sheboygan County |
461 | 2 | 1 | |
|
Cobb Waterworks Cobb · Iowa County |
458 | 2 | 1 | |
|
Kendall Waterworks Kendall · Monroe County |
458 | 4 | 3 | |
|
Alliance Bible Church Mequon · Ozaukee County |
457 | 0 | 0 | |
|
Haven Christian Church Inc, the Eau Claire · Eau Claire County |
457 | 0 | 0 | |
|
Coloma Waterworks Coloma · Waushara County |
454 | 0 | 0 | |
|
Daniel Boone Conservation League Club House Hubertus · Washington County |
453 | 0 | 0 | |
|
Poplar Creek Church New Berlin · Waukesha County |
453 | 0 | 0 | |
|
Village BP Thiensville · Ozaukee County |
452 | 0 | 0 | |
|
Fairchild Waterworks Fairchild · Eau Claire County |
451 | 0 | 0 | |
|
Bay View Heights INC Stoughton · Dane County |
450 | 2 | 0 | |
|
Bluffview Sanitary District Prairie Du Sac · Sauk County |
450 | 2 | 1 | |
|
Camp Forest Springs Forest Clearing Mini Farm Westboro · Taylor County |
450 | 0 | 0 | |
|
Cochrane Waterworks Cochrane · Buffalo County |
450 | 4 | 0 | |
|
Hobart Waterworks S a 2 Hobart · Brown County |
450 | 1 | 0 | |
|
Land O Lakes Sanitary Dist Land O Lakes · Vilas County |
450 | 6 | 0 | |
|
Mattoon Waterworks Mattoon · Shawano County |
450 | 3 | 2 | |
|
McCain Foods USA Wisconsin Rapids · Portage County |
450 | 0 | 0 | |
|
North Lake School North Lake · Waukesha County |
450 | 0 | 0 | |
|
Parquelynn Village Nashotah · Waukesha County |
450 | 0 | 0 | |
|
River Barn Park Mequon · Ozaukee County |
450 | 0 | 0 | |
|
Scouting America Camp Mkjw West Camp 1 Pearson · Langlade County |
450 | 1 | 0 | |
|
Scouting America Mkjw Camp West Camp 2 Pearson · Langlade County |
450 | 0 | 0 | |
|
ST Johns Catholic Church Twin Lakes · Kenosha County |
450 | 0 | 0 | |
|
Wheatland Estates Wheatland · Kenosha County |
450 | 1 | 1 | |
|
WI Dnr Clear LK Cmpgd 10 Woodruff · Oneida County |
450 | 0 | 0 | |
|
WI Dnr Clear LK Cmpgd 23 Woodruff · Oneida County |
450 | 0 | 0 | |
|
WI Dnr Clear LK Cmpgd 24 Woodruff · Oneida County |
450 | 0 | 0 | |
|
WI Dnr Clear LK Cmpgd 7 Woodruff · Oneida County |
450 | 0 | 0 | |
|
WI Dnr Clear LK Cmpgd 8 Woodruff · Oneida County |
450 | 0 | 0 | |
|
WI Dnr Clear LK Cmpgd 9 Woodruff · Oneida County |
450 | 0 | 0 | |
|
ST Alphonsus Catholic Church New Munster · Kenosha County |
449 | 0 | 0 | |
|
Northwestern High School Maple · Douglas County |
448 | 1 | 1 | |
|
Willow Springs MHP 2 & 3 Sussex · Waukesha County |
446 | 0 | 0 | |
|
Holcombe High School Holcombe · Chippewa County |
445 | 0 | 0 | |
|
Burger King Waterford · Racine County |
443 | 1 | 1 | |
|
Fountain City Waterworks Fountain City · Buffalo County |
443 | 1 | 0 | |
|
Hixton Waterworks Hixton · Jackson County |
443 | 2 | 1 | |
|
Birchwood Waterworks Birchwood · Washburn County |
442 | 3 | 2 | |
|
Merrimac Waterworks Merrimac · Sauk County |
440 | 3 | 2 | |
|
WI Dot Rest Area 16 Sparta Sparta · Monroe County |
440 | 1 | 1 | |
|
ST Gabriel School-Parish Hubertus · Washington County |
438 | 1 | 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.