Endothall violations in Illinois
49 active public water systems in Illinois had a Endothall violation in the past three years, 12 of them in the latest quarter of EPA's data. What Endothall is and why it matters.
Systems with a Endothall violation
Latest quarter first, then largest first| System | Serves | Status | Rules violated, 3 yr | Unresolved |
|---|---|---|---|---|
|
Northbrook Northbrook · Cook County |
34,200 | 2 | 0 | |
|
North Chicago North Chicago · Lake County |
16,813 | 4 | 1 | |
|
Prospect Heights Plaza Cook County |
1,240 | 6 | 2 | |
|
Vienna Correctional Center Johnson County |
501 | 3 | 0 | |
|
Victory Christian Center McLean County |
325 | 8 | 1 | |
|
Maranatha Bible Church Cook County |
213 | 3 | 0 | |
|
Mindhaven Academy McHenry County |
100 | 7 | 1 | |
|
Criswell Court MHP Joliet · Will County |
94 | 8 | 3 | |
|
Career Center of Southern Illinois Monroe County |
50 | 9 | 2 | |
|
Walnut Grove MHC Champaign County |
40 | 5 | 0 | |
|
Zutat Feed Solutions Livingston County |
30 | 4 | 0 | |
|
Winnebago Landfill Winnebago County |
25 | 3 | 0 | |
|
Lockport Lockport · Will County |
23,100 | 4 | 0 | |
|
Manhattan Manhattan · Will County |
10,340 | 1 | 0 | |
|
IL American-Whispering Hills McHenry County |
8,300 | 4 | 0 | |
|
Fountain Water District Valmeyer · Monroe County |
4,350 | 3 | 0 | |
|
South Jacksonville South Jacksonville · Morgan County |
3,501 | 4 | 0 | |
|
Dawson Dawson · Sangamon County |
2,375 | 5 | 1 | |
|
Northwest Bible Baptist Church Kane County |
1,600 | 4 | 0 | |
|
Clifton Clifton · Iroquois County |
1,500 | 1 | 0 | |
|
East Moreland Wtr Service Assn New Lenox · Will County |
1,320 | 4 | 3 | |
|
ST Anne Saint Anne · Kankakee County |
1,200 | 4 | 0 | |
|
Snap on Tools McHenry County |
700 | 7 | 0 | |
|
ST Francisville Saint Francisville · Lawrence County |
583 | 7 | 0 | |
|
Spring Grove Elementary School McHenry County |
500 | 6 | 0 | |
|
Quentin RD Bible Baptist CH Lake County |
499 | 2 | 1 | |
|
Bay View Baptist Church Tazewell County |
425 | 2 | 0 | |
|
Barrington Hills CC Clbhse 1&3 Lake County |
300 | 3 | 1 | |
|
North Boone Middle School Boone County |
230 | 8 | 2 | |
|
Bone Gap Bone Gap · Edwards County |
209 | 5 | 1 | |
|
Kishwaukee College DeKalb County |
200 | 5 | 0 | |
|
Rockland Office Plaza Lake County |
200 | 7 | 1 | |
|
Shirland School Winnebago County |
200 | 2 | 0 | |
|
ST George School Kankakee County |
200 | 3 | 0 | |
|
Country Estates Subdivision Henry County |
188 | 5 | 2 | |
|
South Barrington Partners, LLC Cook County |
121 | 5 | 0 | |
|
Loves Travel Stop Ogle County |
80 | 6 | 2 | |
|
Trinity Lutheran School Randolph County |
80 | 9 | 1 | |
|
Pork King McHenry County |
75 | 1 | 0 | |
|
Ads Valley View Landfill, INC Macon County |
60 | 3 | 0 | |
|
Spectrum Preferred Meats Ogle County |
60 | 7 | 1 | |
|
Cci Manufacturing Cook County |
57 | 5 | 0 | |
|
Tegrant Sonoco Protective Solutions Will County |
50 | 6 | 0 | |
|
Flower Garden Day Care 3rd Bld Cook County |
40 | 5 | 1 | |
|
Kaluzny Bros INC Will County |
40 | 5 | 2 | |
|
Illinois Marine Towing Will County |
39 | 5 | 2 | |
|
Flower Garden Annex Cook County |
38 | 6 | 2 | |
|
Diversified Cpc Will County |
25 | 6 | 0 | |
|
Wtvo TV Winnebago County |
25 | 5 | 0 |
About this data
A system is counted once if any of its violations in the past three years involved Endothall, including monitoring and reporting lapses. Rules violated and status in the table are for the whole system, not Endothall 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. Retrieved from ECHO on Oct 11, 2026.