Lead and Copper Rule Revisions (LCRR) violations in Wisconsin
43 active public water systems in Wisconsin had a Lead and Copper Rule Revisions (LCRR) violation in the past three years, 43 of them in the latest quarter of EPA's data. What Lead and Copper Rule Revisions (LCRR) is and why it matters.
Systems with a Lead and Copper Rule Revisions (LCRR) violation
Latest quarter first, then largest first| System | Serves | Status | Rules violated, 3 yr | Unresolved |
|---|---|---|---|---|
|
Glendale Waterworks Glendale · Milwaukee County |
12,883 | 3 | 2 | |
|
Lake Hallie Waterworks Village of Chippewa Falls · Chippewa County |
6,701 | 4 | 2 | |
|
Ellsworth Waterworks Ellsworth · Pierce County |
3,304 | 2 | 2 | |
|
Tomahawk Waterworks Tomahawk · Lincoln County |
3,180 | 2 | 2 | |
|
Amery Waterworks Amery · Polk County |
2,962 | 3 | 2 | |
|
Darlington Waterworks Darlington · Lafayette County |
2,235 | 2 | 2 | |
|
Sharon Waterworks Sharon · Walworth County |
1,549 | 4 | 3 | |
|
Rio Waterworks Rio · Columbia County |
1,095 | 3 | 2 | |
|
Elmwood Waterworks Elmwood · Pierce County |
798 | 4 | 2 | |
|
Alma Waterworks Alma · Buffalo County |
769 | 3 | 1 | |
|
Montfort Waterworks Montfort · Grant County |
718 | 3 | 2 | |
|
Kendall Waterworks Kendall · Monroe County |
458 | 4 | 3 | |
|
Wheeler Waterworks Assoc Wheeler · Dunn County |
317 | 5 | 2 | |
|
Butternut Waterworks Butternut · Ashland County |
283 | 6 | 3 | |
|
Genoa Waterworks Genoa · Vernon County |
264 | 4 | 2 | |
|
Shady Hill Mobile Home Park Clinton · Rock County |
140 | 3 | 1 | |
|
Village Heights Thiensville · Ozaukee County |
130 | 2 | 2 | |
|
Bernatellos Food Waupaca · Portage County |
100 | 2 | 2 | |
|
Andersons Trailer Court Rice Lake · Barron County |
95 | 7 | 4 | |
|
Manitou Falls Sanitary District NO 1 Superior · Douglas County |
95 | 10 | 5 | |
|
Laurel Lakes 608 Thiensville · Ozaukee County |
80 | 2 | 1 | |
|
Provision Partners Auburndale Auburndale · Wood County |
80 | 3 | 2 | |
|
Lafayette Court Chippewa Falls · Chippewa County |
78 | 3 | 2 | |
|
Linden Lane Apts 141 Thiensville · Ozaukee County |
75 | 2 | 1 | |
|
Mequon Colony Estates Mequon · Ozaukee County |
75 | 2 | 1 | |
|
Pine Grove Villa Bancroft · Portage County |
75 | 2 | 2 | |
|
Ozaukee Christian School West Bend · Washington County |
73 | 2 | 2 | |
|
Williamsburg 207 209 and 214 Thiensville · Ozaukee County |
70 | 4 | 3 | |
|
Douglas Plaza South Elm Grove · Waukesha County |
62 | 3 | 2 | |
|
Oak Lane Mobile Home Park Stevens Point · Portage County |
60 | 2 | 2 | |
|
Carriage Hills Condominiums Elm Grove · Waukesha County |
50 | 4 | 2 | |
|
Island Estates La Crosse · La Crosse County |
50 | 3 | 2 | |
|
Laurel Lakes 508 Thiensville · Ozaukee County |
50 | 2 | 1 | |
|
Williamsburg 206 Thiensville · Ozaukee County |
48 | 2 | 1 | |
|
Hilly Haven LLC Phillips · Price County |
45 | 3 | 2 | |
|
Heidel RD Apts 139 Thiensville · Ozaukee County |
40 | 3 | 1 | |
|
Heidel RD Apts 152 Thiensville · Ozaukee County |
40 | 2 | 1 | |
|
Pearces Mobile Home Estates Mauston · Juneau County |
37 | 8 | 3 | |
|
Willow Lane Estates Ladysmith · Rusk County |
34 | 5 | 1 | |
|
Douglas Plaza North Elm Grove · Waukesha County |
30 | 4 | 2 | |
|
Prairie Lake Estates MHP Chetek · Barron County |
25 | 3 | 2 | |
|
River Garden Apts Thiensville · Ozaukee County |
25 | 4 | 2 | |
|
Smith Farm Bldg Hudson · St. Croix County |
25 | 2 | 2 |
About this data
A system is counted once if any of its violations in the past three years involved Lead and Copper Rule Revisions (LCRR), including monitoring and reporting lapses. Rules violated and status in the table are for the whole system, not Lead and Copper Rule Revisions (LCRR) 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.