Chloramine violations in Illinois
47 active public water systems in Illinois had a Chloramine violation in the past three years, 4 of them in the latest quarter of EPA's data. What Chloramine is and why it matters.
Systems with a Chloramine violation
Latest quarter first, then largest first| System | Serves | Status | Rules violated, 3 yr | Unresolved |
|---|---|---|---|---|
|
Herrin Herrin · Williamson County |
12,747 | 6 | 0 | |
|
Menard Correctional Center Randolph County |
2,950 | 4 | 2 | |
|
Hurst Hurst · Williamson County |
782 | 4 | 2 | |
|
IL Veterans Home-Manteno Kankakee County |
256 | 2 | 0 | |
|
Aqua Illinois-Kankakee Kankakee · Kankakee County |
80,000 | 5 | 0 | |
|
Fosterburg Pwd Madison County |
7,940 | 2 | 0 | |
|
Duquoin Du Quoin · Perry County |
7,169 | 6 | 2 | |
|
Aqua Illinois-University Park Pk Forest South · Will County |
7,002 | 3 | 0 | |
|
Bond/madison Water Company Bond County |
6,645 | 4 | 0 | |
|
Wilmington Wilmington · Will County |
5,700 | 7 | 0 | |
|
Eastern Illinois University Charleston · Coles County |
5,500 | 3 | 0 | |
|
Auburn Auburn · Sangamon County |
4,574 | 3 | 0 | |
|
Gillespie Macoupin County |
3,737 | 8 | 3 | |
|
Pontoon Beach Pwd Pontoon Beach · Madison County |
3,325 | 3 | 0 | |
|
Mount Olive Macoupin County |
2,193 | 6 | 2 | |
|
Dix-Kell Water Commssion Jefferson County |
1,972 | 2 | 0 | |
|
Waltonville Waltonville · Jefferson County |
1,901 | 3 | 0 | |
|
Hudson Hudson · McLean County |
1,847 | 2 | 0 | |
|
Crainville Crainville · Williamson County |
1,711 | 3 | 0 | |
|
Jerome Jerome · Sangamon County |
1,600 | 3 | 0 | |
|
Grandview Grandview · Sangamon County |
1,405 | 3 | 1 | |
|
Nilwood Nilwood · Macoupin County |
1,394 | 2 | 0 | |
|
Hilltop MHP Bloomington · McLean County |
1,360 | 7 | 2 | |
|
Nauvoo Nauvoo · Hancock County |
1,200 | 3 | 0 | |
|
Heartville Pwd Effingham County |
1,125 | 3 | 0 | |
|
Royalton Royalton · Franklin County |
1,118 | 6 | 0 | |
|
Enfield Enfield · White County |
1,064 | 2 | 0 | |
|
Ava Ava · Jackson County |
1,053 | 2 | 0 | |
|
Buncombe Water District Jackson County |
1,030 | 5 | 1 | |
|
Willow Lake Estates MHP Elgin · Kane County |
920 | 6 | 0 | |
|
Grand Valley Village MHP Springfield · Sangamon County |
912 | 4 | 1 | |
|
Galatia Galatia · Saline County |
887 | 5 | 1 | |
|
Vergennes Vergennes · Jackson County |
648 | 3 | 0 | |
|
Damiansville Damiansville · Clinton County |
602 | 6 | 2 | |
|
Schram City Schram City · Montgomery County |
563 | 3 | 0 | |
|
Thompsonville Thompsonville · Franklin County |
486 | 3 | 0 | |
|
Oakwood Estates Springfield · Sangamon County |
420 | 2 | 0 | |
|
Blm GW Mhp, LLC Bloomington · McLean County |
390 | 6 | 2 | |
|
Mulkeytown Pwd Franklin County |
390 | 2 | 0 | |
|
Forge at the Lake Madison County |
387 | 6 | 0 | |
|
Pheasant Run MHP Springfield · Sangamon County |
350 | 2 | 0 | |
|
Deluxe Lake Estates MHP Bellevue · Peoria County |
325 | 2 | 0 | |
|
Willow Creek North MHP Bloomington · McLean County |
250 | 7 | 0 | |
|
Sims Sims · Wayne County |
244 | 7 | 0 | |
|
Seaton Seaton · Mercer County |
214 | 4 | 0 | |
|
Country View Ests MHP Champaign County |
100 | 4 | 1 | |
|
Acorn Acres MHP Olney · Richland County |
52 | 7 | 0 |
About this data
A system is counted once if any of its violations in the past three years involved Chloramine, including monitoring and reporting lapses. Rules violated and status in the table are for the whole system, not Chloramine 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. Retrieved from ECHO on Oct 11, 2026.