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 |
|---|---|---|---|---|
|
Cosman Bike Trail 1249 Cook County |
100 | 3 | 1 | |
|
Country View Ests MHP Champaign County |
100 | 4 | 1 | |
|
Deacon's Restaurant/bar Lake County |
100 | 1 | 0 | |
|
Deer Grove South HP 1138 Cook County |
100 | 3 | 1 | |
|
Deer Grove West HP 1014 Cook County |
100 | 3 | 1 | |
|
Donkey Inn Bar and Grill Cook County |
100 | 3 | 1 | |
|
Emerald Acres Campground II South Stephenson County |
100 | 2 | 0 | |
|
First Baptist Church (110387) Will County |
100 | 2 | 1 | |
|
First Church of God Fayette County |
100 | 2 | 0 | |
|
Friendship Village LaSalle County |
100 | 3 | 1 | |
|
Gamber Cove Knox County |
100 | 2 | 1 | |
|
Grubsteakers Ogle County |
100 | 3 | 0 | |
|
Hanks LaSalle County |
100 | 1 | 0 | |
|
Harm Woods North Cook County |
100 | 3 | 1 | |
|
Image Winnebago County |
100 | 2 | 0 | |
|
LA Salle County Nursing Home LaSalle County |
100 | 4 | 0 | |
|
LB 5 Series B Kane County |
100 | 3 | 0 | |
|
Leisure Lake Membership Resort Will County |
100 | 3 | 0 | |
|
Lena KOA Office/south Sites Stephenson County |
100 | 3 | 1 | |
|
McGraw Wildlife Foundation (15529) Kane County |
100 | 3 | 1 | |
|
Midway Village & Museum Center Winnebago County |
100 | 3 | 1 | |
|
Midwest Gas CO Kendall County |
100 | 3 | 1 | |
|
Muller-Pinehurst Dairy Winnebago County |
100 | 5 | 0 | |
|
Muslim Community Center Winnebago County |
100 | 5 | 0 | |
|
New Mill Tap Winnebago County |
100 | 3 | 0 | |
|
North Peotone Apts Will County |
100 | 3 | 1 | |
|
Oakpark Sportsmans Club Will County |
100 | 2 | 0 | |
|
Park Meadowland West MHP Boone County |
100 | 3 | 0 | |
|
Plug & Pellet Sportsmans Club Winnebago County |
100 | 2 | 1 | |
|
Poison Ivy Winnebago County |
100 | 3 | 1 | |
|
Pure Rod & Gun Attn Vern Tomei Will County |
100 | 3 | 0 | |
|
Rock Island Conservation Club Rock Island County |
100 | 2 | 1 | |
|
Seward Screw Products 16377 Winnebago County |
100 | 5 | 0 | |
|
Slc INC LLC Plano Kendall County |
100 | 1 | 0 | |
|
Streator Baptist Camp Dining Hall Well LaSalle County |
100 | 3 | 0 | |
|
Supermercado Guanajuato Winnebago County |
100 | 2 | 1 | |
|
The Bourne LaSalle County |
100 | 2 | 0 | |
|
The Topper Iroquois County |
100 | 1 | 0 | |
|
Thorton's Gas Station Cook County |
100 | 4 | 0 | |
|
Top Die Casting CO Winnebago County |
100 | 7 | 2 | |
|
Troy Baseball Will County |
100 | 3 | 1 | |
|
Tuckaway Golf Course Will County |
100 | 3 | 1 | |
|
Vanhorn Woods Will County |
100 | 3 | 1 | |
|
Nuestro Queso Exterior Well Stephenson County |
91 | 4 | 1 | |
|
Nuestro Queso Interior Well Stephenson County |
91 | 2 | 0 | |
|
Capron MHP Boone County |
90 | 4 | 0 | |
|
Marshell Station LaSalle County |
90 | 3 | 1 | |
|
Falcon Foods Will County |
85 | 3 | 1 | |
|
River City Mhc, LLC Machesney Park · Winnebago County |
83 | 2 | 0 | |
|
7th Day Adventist Church Will County |
80 | 3 | 1 |
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.