Tapcensus

Lead and Copper Rule (LCR) violations in Wisconsin

103 active public water systems in Wisconsin had a Lead and Copper Rule (LCR) violation in the past three years, 97 of them in the latest quarter of EPA's data. What Lead and Copper Rule (LCR) is and why it matters.

Health effects: Lead: no safe level for children. Causes irreversible neurological damage, impaired cognitive development, behavioral problems, and reduced IQ in children under 6. In adults: hypertension, cardiovascular disease, kidney damage. Copper: acute gastrointestinal distress at high levels; liver/kidney damage at very high chronic levels.

Systems with a Lead and Copper Rule (LCR) violation

Latest quarter first, then largest first
SystemServesStatusRules violated, 3 yrUnresolved
Madison Community Montessori School
Middleton · Dane County
200 1 0
Hustler Waterworks
Hustler · Juneau County
170 1 1
Dons Mobile Manor
Waunakee · Dane County
160 4 2
Trinity Lutheran Parsonage & Old School
Caledonia · Racine County
159 2 2
Richfield Square
Hubertus · Washington County
155 4 2
Prairie View Elementary School
De Soto · Vernon County
150 1 1
Stitzer Sanitary Dist 1
Stitzer · Grant County
150 4 2
Norris INC
Mukwonago · Waukesha County
141 5 4
Kettle Moraine YMCA Holy Trinity Congregation
Newburg · Washington County
127 2 1
Coachmans Terrace MHP
Lake Geneva · Walworth County
125 1 1
Eagle Chateau Apts
Kenosha · Kenosha County
125 3 2
Gordon Correctional Center
Gordon · Douglas County
124 4 2
Dodge Sanitary Dist 1
Dodge · Trempealeau County
120 5 1
Franklin MHP
Franklin · Milwaukee County
118 3 1
Grande Cheese Company
Juda · Green County
110 4 1
Huntington Bank Racine
Racine · Racine County
105 1 1
Amorim Cork Composites
Trevor · Kenosha County
100 4 1
Wiskerchen Cheese LLC
Auburndale · Wood County
100 3 1
Aztalan Bio
Johnson Creek · Jefferson County
99 3 1
Andersons Trailer Court
Rice Lake · Barron County
95 7 4
Manitou Falls Sanitary District NO 1
Superior · Douglas County
95 10 5
Glen Flora Waterworks
Glen Flora · Rusk County
93 7 3
Norman Office Building C
Richland Center · Richland County
87 1 1
ST Augustine School
Colgate · Washington County
81 2 2
Allied Plastics INC
Twin Lakes · Kenosha County
80 1 1
Lakeside Village-Custers Bakery
Chippewa Falls · Chippewa County
75 2 2
Covia Holdings Corporation
Tomah · Monroe County
70 1 1
Williamsburg 207 209 and 214
Thiensville · Ozaukee County
70 4 3
Yuba Waterworks
Yuba · Richland County
68 1 1
Grande Custom Ingredients
Juda · Green County
64 8 2
Silver Oak Apts
Silver Lake · Kenosha County
60 3 1
Elder Care Cottages East
Waterford · Racine County
55 2 1
Ashland Ford Chrysler
Ashland · Bayfield County
50 4 1
Quala Wash
Pleasant Prairie · Kenosha County
50 2 2
Bit O Green LLC MHP
Arena · Iowa County
49 5 1
Gospel Mennonite School
Almena · Barron County
45 4 2
Ephraim Village Admin Bldg Fire Dept
Ephraim · Door County
40 1 1
Prototek Digital Manufacturing (madison) LLC
Blue Mounds · Dane County
40 5 1
Shady Oaks MHP
Menomonie · Dunn County
40 4 3
Arbor View Assisted Living 1
Burlington · Racine County
35 4 2
Arbor View Assisted Living 2
Burlington · Racine County
35 5 3
Norswiss Farms INC
Rice Lake · Barron County
31 3 2
Eden Stone Saw Plant & Cut Shop
Eden · Fond du Lac County
30 1 1
Keyes Lake Mobile Home Park
Florence · Florence County
30 5 3
Hood Equipment INC
Iron River · Bayfield County
25 3 2
Prairie Meadow Estates 2
Auburndale · Wood County
25 1 1
Wheeler Automotive Merrill
Merrill · Lincoln County
25 2 1
Thorp Waterworks
Thorp · Clark County
1,636 2 1
Stillson Elementary School
Chippewa Falls · Chippewa County
371 2 0
Kellnersville Waterworks
Kellnersville · Manitowoc County
301 4 1
About this data

A system is counted once if any of its violations in the past three years involved Lead and Copper Rule (LCR), including monitoring and reporting lapses. Rules violated and status in the table are for the whole system, not Lead and Copper Rule (LCR) 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.