All water systems in Wisconsin
428 systems
| System | Serves | Status | Rules violated, 3 yr | Unresolved |
|---|---|---|---|---|
|
Woodys Resort House Well Vilas County |
25 | 0 | 0 | |
|
Cherry Wood Apts Ozaukee County |
24 | 0 | 0 | |
|
Cherrywood Glen Well 5 Verona · County |
24 | 0 | 0 | |
|
Valley View Woods Subd Verona · Dane County |
24 | 1 | 1 | |
|
Cherrywood Glen Subd 1 Verona · County |
23 | 0 | 0 | |
|
Papa Bears Northwoods Store Sauk County |
23 | 0 | 0 | |
|
Springswood Dane County |
23 | 0 | 0 | |
|
Quad/ridgewood Dodge County |
21 | 0 | 0 | |
|
Wayne Troyer Birchwood · Washington County |
20 | 0 | 0 | |
|
Woodlore Div of Allen Edmunds Port Washington · Ozaukee County |
19 | 1 | 1 | |
|
Lakewood Resort 2 Cabins 1 2 & 3 Tomahawk · Oneida County |
16 | 0 | 0 | |
|
Lakewood Resort 3 Cabins 8 & 9 Tomahawk · Oneida County |
16 | 0 | 0 | |
|
Marion Church the Woodman · Grant County |
15 | 1 | 1 | |
|
Basswood Union Church Richland County |
14 | 0 | 0 | |
|
Cardio Partners Woodruff · Vilas County |
14 | 0 | 0 | |
|
Backwoods Motel the Alvin · Forest County |
12 | 1 | 0 | |
|
Wooddale Lake Shore Property Owners Association Walworth County |
12 | 1 | 1 | |
|
Ironwood City Pumping Station Iron County |
10 | 0 | 0 | |
|
Northwoods Youth Camp Oneida County |
9 | 0 | 0 | |
|
Oakwood Discovery Stage Franklin · Milwaukee County |
9 | 0 | 0 | |
|
Dairiconcepts Greenwood Greenwood · Clark County |
6 | 1 | 1 | |
|
Edgewood Golf Course 6 Hand Pump Big Bend · Waukesha County |
5 | 0 | 0 | |
|
U S F S Lakewood Ranger K19 Oconto County |
5 | 0 | 0 | |
|
Lakewood Resort 1 Tavern Residence Tomahawk · Oneida County |
4 | 0 | 0 | |
|
Basswood Estates Chippewa County |
0 | 0 | 0 | |
|
Mels Woods Resort 1 Sayner · Vilas County |
0 | 0 | 0 | |
|
Van Woods Estates Twin Lakes · Kenosha County |
0 | 3 | 3 | |
|
Woods Bridge Dodge County |
0 | 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.