Revised Total Coliform Rule (RTCR) violations in Illinois
829 active public water systems in Illinois had a Revised Total Coliform Rule (RTCR) violation in the past three years, 196 of them in the latest quarter of EPA's data. What Revised Total Coliform Rule (RTCR) is and why it matters.
Systems with a Revised Total Coliform Rule (RTCR) violation
Latest quarter first, then largest first| System | Serves | Status | Rules violated, 3 yr | Unresolved |
|---|---|---|---|---|
|
Wood Dale Wood Dale · DuPage County |
14,012 | 3 | 1 | |
|
Herrin Herrin · Williamson County |
12,747 | 6 | 0 | |
|
Captain James a Lovell Fhcc Lake County |
12,100 | 6 | 2 | |
|
Advocate Christ Medical Center Cook County |
10,000 | 5 | 1 | |
|
Osf ST Francis Hospital Peoria County |
10,000 | 4 | 1 | |
|
Menard Correctional Center Randolph County |
2,950 | 4 | 2 | |
|
Highland Park Hospital Lake County |
2,800 | 5 | 2 | |
|
Silvis Heights Water Corp Rock Island County |
1,450 | 7 | 3 | |
|
Crystal Lawns Addition Improvement Assoc Joliet · Will County |
1,435 | 3 | 1 | |
|
Sunset MHP Cook County |
1,400 | 2 | 0 | |
|
Swedish Covenant Hospital Cook County |
1,200 | 6 | 1 | |
|
Prairie Grove School McHenry County |
1,050 | 2 | 0 | |
|
Wenona Wenona · Marshall County |
974 | 6 | 1 | |
|
Camp Henry Horner/pool Pump House Lake County |
920 | 3 | 2 | |
|
Hurst Hurst · Williamson County |
782 | 4 | 2 | |
|
Stewardson Stewardson · Shelby County |
734 | 3 | 0 | |
|
Lmd Liquors LLC Dba Highland Liquors Will County |
725 | 1 | 0 | |
|
Glenwood RV Resort LaSalle County |
600 | 3 | 1 | |
|
Constellation Clinton Power Station De Witt County |
515 | 5 | 0 | |
|
325 S Route 31 LLC Kendall County |
500 | 3 | 2 | |
|
Dick Young Forest Preserve Kane County |
500 | 2 | 2 | |
|
Funks Grove Hwy Rest Area McLean County |
500 | 2 | 0 | |
|
Heritage of Rantoul Rantoul · Champaign County |
500 | 2 | 0 | |
|
Mascoutin Sra De Witt County |
500 | 2 | 2 | |
|
Sycamore Speedway Kane County |
400 | 2 | 2 | |
|
Tamarack Golf Club Ltd Will County |
400 | 2 | 1 | |
|
Perry Pike County |
388 | 2 | 0 | |
|
Jellystone Park Milbrook Kendall County |
371 | 2 | 2 | |
|
Mid-American Air Center Lawrence County |
350 | 2 | 0 | |
|
Fields Hill Improvement Association LaSalle County |
312 | 7 | 4 | |
|
BP Quick Mart & Chen Jackpot Lake County |
300 | 2 | 1 | |
|
Johansen Farms Will County |
300 | 2 | 1 | |
|
Leroy Oaks for Pres Shelter Kane County |
300 | 2 | 2 | |
|
Pearl Lake RV Resort Llc-Bathhouse Winnebago County |
300 | 3 | 1 | |
|
Pearl Lake RV Resort Llc-Clubhouse Winnebago County |
300 | 3 | 1 | |
|
Quad City Hitmen Sports Complex Rock Island County |
300 | 2 | 2 | |
|
Sunnyland Subdivision Joliet · Will County |
300 | 4 | 2 | |
|
YMCA Camp Winnebago Webvillion Winnebago County |
300 | 3 | 1 | |
|
YMCA Camp Winnebago-Standing Bear Well Winnebago County |
300 | 3 | 1 | |
|
YMCA Camp Winnebago-Wilderness Well Winnebago County |
300 | 1 | 1 | |
|
IL Veterans Home-Manteno Kankakee County |
256 | 2 | 0 | |
|
Bradley Bourbonnais Youth Softball Kankakee County |
250 | 3 | 0 | |
|
Camp Emmaus Ogle County |
250 | 3 | 1 | |
|
Iglesia San Pablo Lake County |
250 | 2 | 2 | |
|
Woodland Acres MHC Urbana · Champaign County |
230 | 4 | 0 | |
|
Ashley Farms Kendall County |
225 | 3 | 1 | |
|
Dick Young West Forest Preserve Kane County |
200 | 2 | 2 | |
|
Double O Saloon Ogle County |
200 | 3 | 1 | |
|
Ineos Joliet, LLC Will County |
200 | 2 | 1 | |
|
Radnor Rod and Gun Club Peoria County |
200 | 3 | 2 |
About this data
A system is counted once if any of its violations in the past three years involved Revised Total Coliform Rule (RTCR), including monitoring and reporting lapses. Rules violated and status in the table are for the whole system, not Revised Total Coliform Rule (RTCR) 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.