Nitrate violations in Illinois
613 active public water systems in Illinois had a Nitrate violation in the past three years, 6 of them in the latest quarter of EPA's data. What Nitrate is and why it matters.
Systems with a Nitrate violation
Latest quarter first, then largest first| System | Serves | Status | Rules violated, 3 yr | Unresolved |
|---|---|---|---|---|
|
Family Picnic Area 3117 Cook County |
25 | 3 | 1 | |
|
Four Star Campground LaSalle County |
25 | 3 | 2 | |
|
Four Willows Golf Course Mason County |
25 | 3 | 1 | |
|
Franklin Creek State Park Park HQ Lee County |
25 | 1 | 0 | |
|
Franklin Creek State Park-Knox Picnic Lee County |
25 | 1 | 0 | |
|
Freedom Lake Monroe County |
25 | 1 | 0 | |
|
Geno's Diner Winnebago County |
25 | 3 | 1 | |
|
Glenwood RV Resort (120832) LaSalle County |
25 | 3 | 1 | |
|
Goose Lake Prairie State Park (93856) Grundy County |
25 | 1 | 0 | |
|
Goose Workshop Henry County |
25 | 3 | 1 | |
|
Grant Hills Motel Office Jo Daviess County |
25 | 2 | 1 | |
|
Grant Township Center Lake County |
25 | 1 | 0 | |
|
Grayslake Animal Hospital Lake County |
25 | 3 | 1 | |
|
Grundy CO Rod & Gun Club 2 Grundy County |
25 | 3 | 1 | |
|
Happy Hollow Lake Ass C/o H SM Knox County |
25 | 4 | 1 | |
|
Head Waters Conservation Area Kane County |
25 | 1 | 0 | |
|
Hennepin Canal Pkwy ST PK (93864) Bureau County |
25 | 3 | 2 | |
|
Henrekin Pines Whiteside County |
25 | 3 | 1 | |
|
Hickory Grove Lake Company Warren County |
25 | 3 | 1 | |
|
Hill Prarie Winery Menard County |
25 | 1 | 0 | |
|
Hot Rod Nellies Winnebago County |
25 | 3 | 0 | |
|
J M Huber Well 1 Adams County |
25 | 7 | 2 | |
|
Jake Wolf Fish Hatchery Mason County |
25 | 1 | 0 | |
|
Klehm Arboretum Winnebago County |
25 | 2 | 0 | |
|
Konow Farms Will County |
25 | 3 | 1 | |
|
LA Chateau Park INC Henry County |
25 | 2 | 1 | |
|
LA Salle Manor Kendall County |
25 | 3 | 1 | |
|
Lake Ave East Wds 1088 Cook County |
25 | 3 | 1 | |
|
Lake Carroll Golf Course Carroll County |
25 | 2 | 0 | |
|
Lake Carroll Marina Carroll County |
25 | 1 | 0 | |
|
Lake Carroll Pool Carroll County |
25 | 2 | 0 | |
|
Lake County Winery Lake County |
25 | 1 | 0 | |
|
Lake Senachwine Upper Putnam County |
25 | 2 | 1 | |
|
Leisure Lake Campground Comfort Whiteside County |
25 | 1 | 0 | |
|
Lena KOA Northwest Well Stephenson County |
25 | 3 | 1 | |
|
Lens Hideaway LaSalle County |
25 | 2 | 0 | |
|
Lgc Shady Lakes RV LLC Mercer County |
25 | 2 | 0 | |
|
Lincoln Land Baptist Church Sangamon County |
25 | 1 | 0 | |
|
Lone Grove Forest Preserve Kane County |
25 | 3 | 2 | |
|
Mallard Bend Resort LLC East Well LaSalle County |
25 | 3 | 2 | |
|
Mallard Bend Resort LLC West Well LaSalle County |
25 | 3 | 2 | |
|
Martin's Camping Ground Will County |
25 | 4 | 1 | |
|
Meadow Lane School Livingston County |
25 | 3 | 0 | |
|
Meadowlark Golf Course Cook County |
25 | 3 | 1 | |
|
Mendota Area Y LaSalle County |
25 | 1 | 0 | |
|
MHC Pine Country LLC New Office Boone County |
25 | 3 | 1 | |
|
Midlothian Meadow 5070 Cook County |
25 | 3 | 1 | |
|
Miller Meadow 4132 Cook County |
25 | 3 | 1 | |
|
Miller Meadow HP 4131 Cook County |
25 | 3 | 1 | |
|
Miller Meadow Flying Field HP3141 Cook County |
25 | 3 | 1 |
About this data
A system is counted once if any of its violations in the past three years involved Nitrate, including monitoring and reporting lapses. Rules violated and status in the table are for the whole system, not Nitrate 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.