All water systems in Wisconsin
23 systems
| System | Serves | Status | Rules violated, 3 yr | Unresolved |
|---|---|---|---|---|
|
Milwaukee County Grounds Wauwatosa · Milwaukee County |
9,936 | 1 | 1 | |
|
University School of Milw LS MS 1 Milwaukee · Milwaukee County |
700 | 0 | 0 | |
|
Milwaukee Electric Tool Corp 1 Waukesha County |
450 | 0 | 0 | |
|
Milwaukee Electric Tool Corp 2 Waukesha County |
450 | 0 | 0 | |
|
University School of Milw US 2 New Well Milwaukee · Milwaukee County |
400 | 0 | 0 | |
|
Milwaukee Country Club Tennis Bldg Milwaukee · Milwaukee County |
320 | 0 | 0 | |
|
New Life Community Church Milwaukee · Milwaukee County |
253 | 0 | 0 | |
|
WE Energies 4 Windsor Estates Milwaukee · Milwaukee County |
120 | 1 | 1 | |
|
Manheim Milwaukee Auto Auction Sinks in Ofc Bldg Caledonia · Racine County |
100 | 0 | 0 | |
|
Metro Milwaukee Auto Auction -Certified Well Caledonia · Racine County |
87 | 0 | 0 | |
|
Ozinga Private Port Terminal Milwaukee · Milwaukee County |
40 | 2 | 1 | |
|
Chase Bank -Milwaukee Muskego Ofc Waukesha County |
37 | 0 | 0 | |
|
Bank 1 Milwaukee Oconomowoc Ofc Waukesha County |
25 | 0 | 0 | |
|
Bank 1 Milwaukee Summit Branch Waukesha County |
25 | 0 | 0 | |
|
Jcc Family Park of Milwaukee Milwaukee County |
25 | 0 | 0 | |
|
Milwaukee Gun Club Milwaukee County |
25 | 0 | 0 | |
|
Milwaukee Inn Sawyer County |
25 | 0 | 0 | |
|
Milwaukee Machine Products Ozaukee County |
25 | 0 | 0 | |
|
Milwaukee Messenger Milwaukee County |
25 | 0 | 0 | |
|
Metro Milwaukee Auto Auction-South Maintenance Franksville · Racine County |
16 | 0 | 0 | |
|
Hand Doctors of Milwaukee Mequon · Ozaukee County |
12 | 0 | 0 | |
|
General Mitchell Iap Ang Milwaukee · Milwaukee County |
5 | 0 | 0 | |
|
Metro Milwaukee Auto Auction-South Office Franksville · Racine County |
5 | 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.