Gross Alpha, Excl. Radon and U violations in Wisconsin
26 active public water systems in Wisconsin had a Gross Alpha, Excl. Radon and U violation in the past three years, 10 of them in the latest quarter of EPA's data. What Gross Alpha, Excl. Radon and U is and why it matters.
Systems with a Gross Alpha, Excl. Radon and U violation
Latest quarter first, then largest first| System | Serves | Status | Rules violated, 3 yr | Unresolved |
|---|---|---|---|---|
|
Verona Waterworks Verona · Dane County |
14,030 | 3 | 1 | |
|
Pewaukee City Water and Sewer Utility Pewaukee · Waukesha County |
8,671 | 2 | 1 | |
|
Pewaukee Village Waterworks Pewaukee · Waukesha County |
8,166 | 2 | 1 | |
|
Evansville Waterworks Evansville · Rock County |
5,703 | 2 | 0 | |
|
Medford Waterworks Medford · Taylor County |
4,318 | 2 | 0 | |
|
Lomira Waterworks Lomira · Dodge County |
2,701 | 4 | 1 | |
|
Hustisford Waterworks Hustisford · Dodge County |
1,063 | 1 | 0 | |
|
Southern Wisconsin Center Union Grove · Racine County |
950 | 4 | 0 | |
|
Wheeler Waterworks Assoc Wheeler · Dunn County |
317 | 5 | 2 | |
|
Marshview Terrace Waupun · Dodge County |
40 | 3 | 1 | |
|
Brookfield Water Utility Brookfield · Waukesha County |
29,070 | 2 | 0 | |
|
Freedom Sanitary District Freedom · Outagamie County |
3,260 | 1 | 0 | |
|
Amery Waterworks Amery · Polk County |
2,962 | 3 | 2 | |
|
Winneconne Waterworks Winneconne · Winnebago County |
2,502 | 4 | 1 | |
|
New Odanah County |
1,839 | 5 | 0 | |
|
Augusta Waterworks Augusta · Eau Claire County |
1,450 | 8 | 0 | |
|
Barneveld Waterworks Barneveld · Iowa County |
1,258 | 4 | 1 | |
|
Eleva Waterworks Eleva · Trempealeau County |
635 | 10 | 0 | |
|
Gresham Waterworks Gresham · Shawano County |
534 | 3 | 0 | |
|
Readstown Waterworks Readstown · Vernon County |
395 | 3 | 0 | |
|
Leroy Sanitary District 1 Leroy · Dodge County |
320 | 4 | 1 | |
|
Radisson Waterworks Radisson · Sawyer County |
241 | 7 | 1 | |
|
Country Road Estates Galesville · Trempealeau County |
120 | 2 | 0 | |
|
Ludwell Estates Elkhorn · Walworth County |
100 | 6 | 1 | |
|
Wiota Sanitary District South Wayne · Lafayette County |
98 | 2 | 0 | |
|
Dells Club Condo Assoc 3 Wisconsin Dells · Adams County |
75 | 4 | 0 |
About this data
A system is counted once if any of its violations in the past three years involved Gross Alpha, Excl. Radon and U, including monitoring and reporting lapses. Rules violated and status in the table are for the whole system, not Gross Alpha, Excl. Radon and U 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.