Consumer Confidence Rule (CCR) violations in Illinois
328 active public water systems in Illinois had a Consumer Confidence Rule (CCR) violation in the past three years, 328 of them in the latest quarter of EPA's data. What Consumer Confidence Rule (CCR) is and why it matters.
Systems with a Consumer Confidence Rule (CCR) violation
Latest quarter first, then largest first| System | Serves | Status | Rules violated, 3 yr | Unresolved |
|---|---|---|---|---|
|
Hazel Crest Hazel Crest · Cook County |
13,792 | 2 | 1 | |
|
Western Springs Western Springs · Cook County |
13,629 | 3 | 1 | |
|
Rantoul Rantoul · Champaign County |
13,000 | 1 | 1 | |
|
U of I-Champaign Urbana · Champaign County |
13,000 | 2 | 2 | |
|
Taylorville Taylorville · Christian County |
12,806 | 3 | 2 | |
|
Glen Carbon Glen Carbon · Madison County |
12,618 | 2 | 1 | |
|
Richton Park Richton Park · Cook County |
12,504 | 5 | 3 | |
|
Markham Markham · Cook County |
12,500 | 4 | 1 | |
|
Fox Lake Fox Lake · Lake County |
11,780 | 5 | 1 | |
|
River Forest River Forest · Cook County |
11,717 | 2 | 1 | |
|
Schiller Park Schiller Park · Cook County |
11,709 | 1 | 1 | |
|
Summit Summit · Cook County |
11,161 | 3 | 3 | |
|
Columbia Columbia · Monroe County |
11,129 | 1 | 1 | |
|
Crestwood Crestwood · Cook County |
10,826 | 2 | 1 | |
|
Riverdale Riverdale · Cook County |
10,266 | 1 | 1 | |
|
Maryville Maryville · Madison County |
10,150 | 1 | 1 | |
|
Steger Steger · Cook County |
9,700 | 2 | 1 | |
|
Flossmoor Flossmoor · Cook County |
9,371 | 1 | 1 | |
|
Willowbrook Willowbrook · DuPage County |
9,000 | 3 | 2 | |
|
Clear Water Service Corp Coles County |
8,900 | 2 | 0 | |
|
Mascoutah Mascoutah · St. Clair County |
8,759 | 1 | 1 | |
|
Calumet Park Calumet Park · Cook County |
8,442 | 3 | 2 | |
|
Mill Creek Water Reclamation District Kane County |
8,000 | 1 | 1 | |
|
Lincolnshire Lincolnshire · Lake County |
7,940 | 1 | 1 | |
|
Broadview Broadview · Cook County |
7,847 | 4 | 3 | |
|
Silvis Silvis · Rock Island County |
7,473 | 7 | 1 | |
|
Clinton Clinton · De Witt County |
7,200 | 1 | 1 | |
|
Litchfield Montgomery County |
6,648 | 5 | 1 | |
|
LA Grange Highlands Sanitary District Cook County |
6,600 | 1 | 1 | |
|
Winthrop Harbor Winthrop Harbor · Lake County |
6,565 | 4 | 3 | |
|
Coal City Coal City · Grundy County |
5,845 | 4 | 2 | |
|
East Alton East Alton · Madison County |
5,786 | 1 | 1 | |
|
Lake Bluff Lake Bluff · Lake County |
5,600 | 2 | 1 | |
|
Shelbyville Shelbyville · Shelby County |
5,600 | 2 | 1 | |
|
Robbins Robbins · Cook County |
5,415 | 6 | 3 | |
|
Posen Posen · Cook County |
5,331 | 3 | 1 | |
|
Round Lake Park Round Lake Park · Lake County |
4,900 | 4 | 1 | |
|
Tuscola Tuscola · Douglas County |
4,875 | 4 | 1 | |
|
Watseka Watseka · Iroquois County |
4,767 | 1 | 1 | |
|
Cherry Valley Cherry Valley · Winnebago County |
4,731 | 2 | 1 | |
|
Beecher Beecher · Will County |
4,713 | 1 | 1 | |
|
Lakewood Lakewood · McHenry County |
4,267 | 2 | 1 | |
|
Hometown Hometown · Cook County |
4,240 | 2 | 1 | |
|
Georgetown Georgetown · Vermilion County |
4,200 | 2 | 1 | |
|
Morrison Morrison · Whiteside County |
4,188 | 2 | 1 | |
|
Woodhaven Lee County |
4,100 | 2 | 1 | |
|
Burnham Burnham · Cook County |
3,989 | 7 | 3 | |
|
Marshall Marshall · Clark County |
3,947 | 1 | 1 | |
|
Corinth Pwd Williamson County |
3,927 | 2 | 1 | |
|
LE Roy Le Roy · McLean County |
3,498 | 4 | 2 |
About this data
A system is counted once if any of its violations in the past three years involved Consumer Confidence Rule (CCR), including monitoring and reporting lapses. Rules violated and status in the table are for the whole system, not Consumer Confidence Rule (CCR) 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.