Barium violations in Illinois
72 active public water systems in Illinois had a Barium violation in the past three years, 3 of them in the latest quarter of EPA's data. What Barium is and why it matters.
Systems with a Barium violation
Latest quarter first, then largest first| System | Serves | Status | Rules violated, 3 yr | Unresolved |
|---|---|---|---|---|
|
Riverdale Preschool Center Whiteside County |
80 | 3 | 0 | |
|
Rovanco Piping System INC Will County |
80 | 4 | 0 | |
|
Trinity Lutheran School Randolph County |
80 | 9 | 1 | |
|
Vvf LLC Kane County |
75 | 6 | 1 | |
|
Posh Tots Academy Woodford County |
70 | 4 | 1 | |
|
Rooks Creek Elementary School Livingston County |
66 | 10 | 1 | |
|
Washington Mills Putnam County |
65 | 6 | 0 | |
|
Spectrum Preferred Meats Ogle County |
60 | 7 | 1 | |
|
Career Center of Southern Illinois Monroe County |
50 | 9 | 2 | |
|
Focus House Ogle County |
50 | 6 | 0 | |
|
Kindercare McHenry McHenry County |
50 | 4 | 0 | |
|
Primrose School Lake County |
50 | 4 | 0 | |
|
Tegrant Sonoco Protective Solutions Will County |
50 | 6 | 0 | |
|
Carmel Montessori Academy DuPage County |
40 | 6 | 1 | |
|
Wells Concrete McHenry County |
40 | 5 | 0 | |
|
JX Peterbilt Lake County |
34 | 5 | 1 | |
|
Wedron Silica Sand Company LaSalle County |
29 | 6 | 1 | |
|
Peaceful Pathways Kendall County |
25 | 6 | 0 | |
|
Wedron Silica 2 LaSalle County |
25 | 5 | 1 | |
|
Winnebago County Rock 39 Winnebago County |
25 | 7 | 1 | |
|
Wtvo TV Winnebago County |
25 | 5 | 0 | |
|
Bluff Lake Lodges, Inc. Antioch · Lake County |
24 | 8 | 2 |
About this data
A system is counted once if any of its violations in the past three years involved Barium, including monitoring and reporting lapses. Rules violated and status in the table are for the whole system, not Barium 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.