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 |
|---|---|---|---|---|
|
Schiller Woods 3070 Cook County |
400 | 3 | 1 | |
|
Schiller Woods 3102 Cook County |
400 | 3 | 1 | |
|
Schiller Woods W 3072 Cook County |
400 | 3 | 1 | |
|
Timber Pointe the Lodge McLean County |
400 | 3 | 1 | |
|
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 | |
|
Roberts Roberts · Ford County |
367 | 2 | 0 | |
|
Central Galilee United Methodist Church Cook County |
350 | 2 | 0 | |
|
Oakwood Twp High School Vermilion County |
350 | 7 | 2 | |
|
Rainbow Council Scout Res Main Grundy County |
350 | 2 | 0 | |
|
Ilcv Candle Mhp, LLC Coal Valley · Rock Island County |
340 | 4 | 1 | |
|
Alma Alma · Marion County |
336 | 5 | 2 | |
|
Deluxe Lake Estates MHP Bellevue · Peoria County |
325 | 2 | 0 | |
|
Victory Christian Center McLean County |
325 | 8 | 1 | |
|
Woodland Woodland · Iroquois County |
319 | 4 | 1 | |
|
Full Moon Restaurant Lake County |
315 | 3 | 1 | |
|
Aqua Illinois-Oakview Joliet · Will County |
312 | 2 | 0 | |
|
Little York Little York · Warren County |
304 | 3 | 0 | |
|
Camp Hickory Lake County |
300 | 1 | 0 | |
|
Comlara Park Campground McLean County |
300 | 2 | 1 | |
|
Harvest Baptist Church Well 1 Kendall County |
300 | 2 | 0 | |
|
Oak Ridge Sanitary District Metamora · Woodford County |
300 | 5 | 1 | |
|
Hindsboro Hindsboro · Douglas County |
296 | 3 | 0 | |
|
Concord Concord · Morgan County |
295 | 4 | 0 | |
|
Brocton Brocton · Edgar County |
288 | 6 | 2 | |
|
Ben Watts Marina Lake County |
278 | 1 | 0 | |
|
Biggsville Biggsville · Henderson County |
273 | 2 | 0 | |
|
Crabtree Nature Center Cook County |
273 | 3 | 1 | |
|
Elliott Elliott · Ford County |
269 | 3 | 0 | |
|
Bar Salotto Cook County |
265 | 3 | 1 | |
|
North Boone Upper Elementary School Boone County |
262 | 7 | 1 | |
|
Aurora Athletic Club Kane County |
250 | 3 | 1 | |
|
Camp Manitoumi Woodford County |
250 | 2 | 0 | |
|
Old Mill Park Carroll County |
250 | 2 | 1 | |
|
Petite Lake Resort Lake County |
250 | 3 | 1 | |
|
Willow Creek North MHP Bloomington · McLean County |
250 | 7 | 0 | |
|
Aqua Illinois-Skyline Kankakee County |
249 | 3 | 0 | |
|
Sims Sims · Wayne County |
244 | 7 | 0 | |
|
4h Camp Shaw Waw Nas See Kankakee County |
240 | 3 | 0 | |
|
Rockford Mhc, LLC Rockford · Winnebago County |
240 | 3 | 0 | |
|
Broughton Water District Broughton · Hamilton County |
235 | 4 | 0 | |
|
Monte Carlo Plaza Cook County |
235 | 3 | 1 | |
|
Oakford Oakford · Menard County |
234 | 3 | 1 | |
|
Donovan Grade School Iroquois County |
231 | 2 | 0 | |
|
Postcard Cabins Starved Rock LaSalle County |
230 | 2 | 0 | |
|
North Boone Middle School Boone County |
230 | 8 | 2 | |
|
Maquon Maquon · Knox County |
218 | 3 | 0 | |
|
Seaton Seaton · Mercer County |
214 | 4 | 0 | |
|
Bone Gap Bone Gap · Edwards County |
209 | 5 | 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.