Public Notification Rule violations in Wisconsin
719 active public water systems in Wisconsin had a Public Notification Rule violation in the past three years, 719 of them in the latest quarter of EPA's data. What Public Notification Rule is and why it matters.
Systems with a Public Notification Rule violation
Latest quarter first, then largest first| System | Serves | Status | Rules violated, 3 yr | Unresolved |
|---|---|---|---|---|
|
Rothschild Waterworks Rothschild · Marathon County |
3,190 | 2 | 0 | |
|
Tomahawk Waterworks Tomahawk · Lincoln County |
3,180 | 2 | 2 | |
|
Lodi Waterworks Lodi · Columbia County |
3,146 | 3 | 1 | |
|
Amery Waterworks Amery · Polk County |
2,962 | 3 | 2 | |
|
Mendota Mental Health Inst Madison · Dane County |
2,787 | 1 | 1 | |
|
Lomira Waterworks Lomira · Dodge County |
2,701 | 4 | 1 | |
|
Osceola Waterworks Osceola · Polk County |
2,680 | 2 | 1 | |
|
Williams Bay Waterworks Williams Bay · Walworth County |
2,601 | 2 | 2 | |
|
Abbotsford Waterworks Abbotsford · Marathon County |
2,502 | 3 | 2 | |
|
Mineral Point Waterworks Mineral Point · Iowa County |
2,487 | 3 | 2 | |
|
Westby Waterworks Westby · Vernon County |
2,400 | 3 | 1 | |
|
Neillsville Waterworks Neillsville · Clark County |
2,384 | 2 | 1 | |
|
Lakeland Sanitary Dist 1 Minocqua · Oneida County |
2,381 | 4 | 1 | |
|
Dousman Water Utility Dousman · Waukesha County |
2,350 | 3 | 0 | |
|
New Glarus Waterworks New Glarus · Green County |
2,348 | 2 | 1 | |
|
Washburn Waterworks Washburn · Bayfield County |
2,280 | 2 | 1 | |
|
Kohler Waterworks Kohler · Sheboygan County |
2,271 | 1 | 1 | |
|
Darlington Waterworks Darlington · Lafayette County |
2,235 | 2 | 2 | |
|
Schofield Waterworks Schofield · Marathon County |
2,205 | 2 | 1 | |
|
Cuba City Waterworks Cuba City · Grant County |
2,141 | 3 | 1 | |
|
Loves Travel Stop Sheboygan Sheboygan · Sheboygan County |
2,070 | 4 | 1 | |
|
WI Dot Rest Area 9 Lemonweir Lyndon Station · Juneau County |
2,000 | 1 | 1 | |
|
Crandon Waterworks Crandon · Forest County |
1,958 | 2 | 1 | |
|
McDonalds Milw ST Madison · Dane County |
1,940 | 1 | 1 | |
|
Port Edwards Water Utility Port Edwards · Wood County |
1,866 | 1 | 1 | |
|
Fox Lake Correctional Institution Fox Lake · Dodge County |
1,850 | 3 | 2 | |
|
Spencer Waterworks Spencer · Marathon County |
1,848 | 4 | 2 | |
|
Adams Waterworks Adams · Adams County |
1,847 | 2 | 1 | |
|
Fontana Water Utility Fontana · Walworth County |
1,839 | 2 | 1 | |
|
Whitehall Waterworks Whitehall · Trempealeau County |
1,820 | 2 | 1 | |
|
Wind Point Water Dept Racine · Racine County |
1,804 | 2 | 1 | |
|
Fall River Waterworks Fall River · Columbia County |
1,793 | 2 | 1 | |
|
Marathon City Waterworks Marathon City · Marathon County |
1,695 | 2 | 1 | |
|
Kettle Moraine High School & Wales Elem School Wales · Waukesha County |
1,670 | 2 | 1 | |
|
Shorewood Hills Waterworks Madison · Dane County |
1,670 | 3 | 1 | |
|
Stratford Waterworks Stratford · Marathon County |
1,643 | 3 | 1 | |
|
Cambridge Water & Sewer Utility Cambridge · Dane County |
1,638 | 3 | 1 | |
|
Sharon Waterworks Sharon · Walworth County |
1,549 | 4 | 3 | |
|
Eagle River Waterworks Eagle River · Vilas County |
1,530 | 3 | 1 | |
|
Hurley Waterworks Hurley · Iron County |
1,515 | 3 | 1 | |
|
Concordia University Mequon · Ozaukee County |
1,500 | 2 | 1 | |
|
Black Earth Waterworks Black Earth · Dane County |
1,493 | 2 | 0 | |
|
Edgar Waterworks Edgar · Marathon County |
1,491 | 2 | 1 | |
|
Phillips Waterworks Phillips · Price County |
1,473 | 2 | 1 | |
|
Grantsburg Waterworks Grantsburg · Burnett County |
1,460 | 2 | 1 | |
|
Maple Bluff Waterworks Madison · Dane County |
1,342 | 1 | 1 | |
|
Montello Waterworks Montello · Marquette County |
1,329 | 4 | 1 | |
|
Fall Creek Waterworks Fall Creek · Eau Claire County |
1,269 | 4 | 1 | |
|
Mole Lake County |
1,260 | 4 | 1 | |
|
Barneveld Waterworks Barneveld · Iowa County |
1,258 | 4 | 1 |
About this data
A system is counted once if any of its violations in the past three years involved Public Notification Rule, including monitoring and reporting lapses. Rules violated and status in the table are for the whole system, not Public Notification Rule alone.
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.