Lead and Copper Rule (LCR) violations in Illinois
278 active public water systems in Illinois had a Lead and Copper Rule (LCR) violation in the past three years, 278 of them in the latest quarter of EPA's data. What Lead and Copper Rule (LCR) is and why it matters.
Systems with a Lead and Copper Rule (LCR) violation
Latest quarter first, then largest first| System | Serves | Status | Rules violated, 3 yr | Unresolved |
|---|---|---|---|---|
|
Oakwood Twp High School Vermilion County |
350 | 7 | 2 | |
|
Winslow Winslow · Stephenson County |
350 | 4 | 3 | |
|
Panama Panama · Bond County |
343 | 4 | 3 | |
|
Greater Quad City Auto Auction Rock Island County |
340 | 6 | 1 | |
|
Maeystown Maeystown · Monroe County |
340 | 1 | 1 | |
|
Alma Alma · Marion County |
336 | 5 | 2 | |
|
Gavin South School Lake County |
325 | 5 | 2 | |
|
Victory Christian Center McLean County |
325 | 8 | 1 | |
|
Latham Latham · Logan County |
323 | 3 | 3 | |
|
Fsh Water Commission Smithton · St. Clair County |
313 | 2 | 0 | |
|
Fields Hill Improvement Association LaSalle County |
312 | 7 | 4 | |
|
Apachi Day Camp Lake County |
300 | 6 | 2 | |
|
Barrington Hills CC Clbhse 1&3 Lake County |
300 | 3 | 1 | |
|
Eisenhower Academy Will County |
300 | 6 | 2 | |
|
Fox Valley YMCA & Preschool Kendall County |
300 | 5 | 1 | |
|
Northwestern Medicine Woodstock Hospital McHenry County |
300 | 2 | 1 | |
|
Oak Ridge Sanitary District Metamora · Woodford County |
300 | 5 | 1 | |
|
IL American-Del-Mar Lake County |
300 | 1 | 0 | |
|
Brocton Brocton · Edgar County |
288 | 6 | 2 | |
|
Cabery Cabery · Ford County |
266 | 6 | 2 | |
|
North Boone Upper Elementary School Boone County |
262 | 7 | 1 | |
|
Mapleton Mapleton · Peoria County |
261 | 2 | 1 | |
|
Rustic Acres Water Association Henry County |
260 | 4 | 3 | |
|
Scot Forge McHenry County |
253 | 3 | 1 | |
|
Ildu Lepere Mhp, LLC Dupo · St. Clair County |
250 | 3 | 2 | |
|
Princeton Christian Academy Bureau County |
250 | 5 | 1 | |
|
Sims Sims · Wayne County |
244 | 7 | 0 | |
|
Evergreen Wildwood Mobile Home Park Carbondale · Jackson County |
230 | 6 | 1 | |
|
Illinois Central Lake County |
230 | 2 | 2 | |
|
North Boone Middle School Boone County |
230 | 8 | 2 | |
|
Cave-In-Rock Cave In Rock · Hardin County |
228 | 1 | 1 | |
|
Saint Patrick School Lake County |
225 | 5 | 1 | |
|
Batchtown Batchtown · Calhoun County |
220 | 4 | 1 | |
|
Lily Lake Grade School Kane County |
220 | 5 | 1 | |
|
Harvard Hills Water Corporation Washington · Tazewell County |
215 | 3 | 2 | |
|
Sylvan Lake 1st Subdivision Lake County |
210 | 6 | 0 | |
|
Bone Gap Bone Gap · Edwards County |
209 | 5 | 1 | |
|
University Flats MHP Edwardsville · Madison County |
203 | 1 | 0 | |
|
Mill Point MHP Secor · Woodford County |
200 | 5 | 1 | |
|
Rockland Office Plaza Lake County |
200 | 7 | 1 | |
|
Spin Lake Homeowners Association, Inc. McLean County |
200 | 1 | 0 | |
|
Village Green Mobile Home Park Pontoon Beach · Madison County |
188 | 1 | 1 | |
|
Lafayette La Fayette · Stark County |
177 | 5 | 4 | |
|
Eswood School Dist 269 Ogle County |
175 | 4 | 1 | |
|
Hettick Hettick · Macoupin County |
174 | 6 | 3 | |
|
Quail Run Mobile Home Park Edwardsville · Madison County |
168 | 2 | 1 | |
|
Pearl Pearl · Pike County |
166 | 2 | 1 | |
|
Vermilion Grove Waterworks Ridge Farm · Vermilion County |
160 | 3 | 1 | |
|
Iola Iola · Clay County |
158 | 1 | 1 | |
|
Tpg Pressure, Inc. Winnebago County |
151 | 8 | 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 Illinois 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.