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 |
|---|---|---|---|---|
|
Galatia Galatia · Saline County |
887 | 5 | 1 | |
|
Clifton Central High School Iroquois County |
875 | 5 | 0 | |
|
Lawrence County Correctional Center Lawrence County |
870 | 5 | 2 | |
|
Albany Albany · Whiteside County |
846 | 7 | 0 | |
|
Constellation Dresden Station Grundy County |
811 | 1 | 0 | |
|
Adams County Water District NO 1 Adams County |
800 | 2 | 0 | |
|
Braceville Braceville · Grundy County |
800 | 6 | 1 | |
|
Pride of the Prairie Rest Area Macon County |
800 | 4 | 1 | |
|
Sherrard Jr/sr High School Rock Island County |
800 | 4 | 1 | |
|
Poplar Grove West-Countryside Poplar Grove · Boone County |
790 | 3 | 0 | |
|
Farmersville Farmersville · Montgomery County |
784 | 3 | 1 | |
|
Menard Rural Water Coop Petersburg · Menard County |
753 | 4 | 1 | |
|
Caledonia School Boone County |
750 | 7 | 1 | |
|
Keithsburg Keithsburg · Mercer County |
747 | 2 | 0 | |
|
Snap on Tools McHenry County |
700 | 7 | 0 | |
|
Turtle Creek Rest Area Winnebago County |
700 | 2 | 0 | |
|
Westfield Westfield · Clark County |
678 | 6 | 2 | |
|
Vergennes Vergennes · Jackson County |
648 | 3 | 0 | |
|
Ashmore Ashmore · Coles County |
637 | 8 | 0 | |
|
Creston Creston · Ogle County |
627 | 4 | 1 | |
|
Hutsonville Hutsonville · Crawford County |
613 | 3 | 1 | |
|
Damiansville Damiansville · Clinton County |
602 | 6 | 2 | |
|
Baker Koren Round Barn Will County |
600 | 2 | 0 | |
|
Harvest Baptist Church Well 3 Kendall County |
600 | 3 | 1 | |
|
ST Francisville Saint Francisville · Lawrence County |
583 | 7 | 0 | |
|
Hopkins Park Pembroke · Kankakee County |
579 | 4 | 1 | |
|
Elkhart Logan County |
565 | 4 | 0 | |
|
Schram City Schram City · Montgomery County |
563 | 3 | 0 | |
|
Lyndon Lyndon · Whiteside County |
537 | 4 | 0 | |
|
Citgo Dunkin Donuts Prospect Heights Cook County |
507 | 2 | 0 | |
|
Beecher City Beecher City · Effingham County |
500 | 6 | 1 | |
|
Dunham Woods Riding Club Kane County |
500 | 3 | 1 | |
|
Lake Shannon Essex · Kankakee County |
500 | 5 | 0 | |
|
North Boone High School Boone County |
500 | 6 | 2 | |
|
Sauk Valley College Lee County |
500 | 2 | 0 | |
|
Spoon River Speedway Fulton County |
500 | 3 | 1 | |
|
Starved Rock State Park (94227) LaSalle County |
500 | 3 | 0 | |
|
North Meadow Village MHP Normal · McLean County |
495 | 6 | 3 | |
|
Woodland a and B MHP Rock Island County |
490 | 3 | 0 | |
|
Thompsonville Thompsonville · Franklin County |
486 | 3 | 0 | |
|
Cornerstone Christian Academy McLean County |
475 | 5 | 0 | |
|
Beaverville Beaverville · Iroquois County |
450 | 5 | 0 | |
|
Oak Lawn MHP Boone County |
450 | 3 | 0 | |
|
Rolling Meadows MHC Ogle County |
447 | 2 | 0 | |
|
DE Land De Land · Piatt County |
446 | 5 | 1 | |
|
Hecker Hecker · Monroe County |
429 | 5 | 2 | |
|
Mount Morris Estates MHP Ogle County |
425 | 2 | 0 | |
|
ED Etnyre and Company Ogle County |
400 | 7 | 0 | |
|
Harvest Baptist Church Well 2 Kendall County |
400 | 2 | 0 | |
|
Hinckley-Big Rock Middle School Kane County |
400 | 5 | 0 |
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.