Heptachlor violations in Illinois
58 active public water systems in Illinois had a Heptachlor violation in the past three years, 12 of them in the latest quarter of EPA's data. What Heptachlor is and why it matters.
Systems with a Heptachlor violation
Latest quarter first, then largest first| System | Serves | Status | Rules violated, 3 yr | Unresolved |
|---|---|---|---|---|
|
Cci Manufacturing Cook County |
57 | 5 | 0 | |
|
Stateline Foundries Winnebago County |
52 | 5 | 1 | |
|
Tegrant Sonoco Protective Solutions Will County |
50 | 6 | 0 | |
|
Kaluzny Bros INC Will County |
40 | 5 | 2 | |
|
Zutat Feed Solutions Livingston County |
30 | 4 | 0 | |
|
Fiber Tex-Non Woven Solutions Lake County |
26 | 1 | 0 | |
|
Diversified Cpc Will County |
25 | 6 | 0 | |
|
Nussbaum Transportation #2 McLean County |
25 | 5 | 1 |
About this data
A system is counted once if any of its violations in the past three years involved Heptachlor, including monitoring and reporting lapses. Rules violated and status in the table are for the whole system, not Heptachlor 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.