Tapcensus

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.

Health effects: Methemoglobinemia in infants under 6 months: gut bacteria convert nitrate to nitrite, which blocks oxygen transport in blood. Pregnant women should also take precautions. Chronic adult exposure at elevated levels may increase cancer risk.

Systems with a Nitrate violation

Latest quarter first, then largest first
SystemServesStatusRules violated, 3 yrUnresolved
Cabery
Cabery · Ford County
266 6 2
Bar Salotto
Cook County
265 3 1
Aurora Athletic Club
Kane County
250 3 1
Camp Emmaus
Ogle County
250 3 1
Cross Point Church
Lake County
250 1 0
Crossroads Church
Piatt County
250 2 0
Lorenzo Road Fuel Stop
Will County
250 3 1
Petite Lake Resort
Lake County
250 3 1
Princeton Christian Academy
Bureau County
250 5 1
Safari Life Before & After School Center
Cook County
250 2 1
4h Camp Shaw Waw Nas See
Kankakee County
240 3 0
Steward
Steward · Lee County
238 4 0
Postcard Cabins Starved Rock
LaSalle County
230 2 0
Sheridan Grade School
LaSalle County
227 3 0
Ashley Farms
Kendall County
225 3 1
Batchtown
Batchtown · Calhoun County
220 4 1
Sylvan Lake 1st Subdivision
Lake County
210 6 0
Cortland Corners MHP
DeKalb County
205 10 3
Air View MHP
Rock Island County
200 3 1
Black Sheep Golf Club
Kane County
200 1 0
Double O Saloon
Ogle County
200 3 1
Emerald Acres Campground II North
Stephenson County
200 3 1
Conagra
Vermilion County
200 9 1
Highland Korean Church
Lake County
200 3 1
Illini State Park
LaSalle County
200 1 0
Immanuel Lutheran Church (121194)
Champaign County
200 2 0
Kamp Komfort
McLean County
200 1 0
Karbans Knotty Pines
St. Clair County
200 1 0
Kendall County Fair Association
Kendall County
200 1 0
Kuipers Family Farm
Kane County
200 2 1
Lake Carroll Beach
Carroll County
200 3 0
Lake Carroll Campground
Carroll County
200 2 0
Lake Carroll Clubhouse
Carroll County
200 3 1
Lowden State Park West Well
Ogle County
200 2 0
Radnor Rod and Gun Club
Peoria County
200 3 2
Royalhawk Golf Club
Kane County
200 3 1
ST Mary Coptic Church
Cook County
200 3 1
Swallow Cliff Stairs Pavillion 5022
Cook County
200 3 1
The Island on the Chain
Lake County
200 2 1
Timberlake Resort
Carroll County
200 3 1
Versa Press INC
Woodford County
200 8 1
Will County Sportsman's Club-Lake Will
Will County
200 4 1
Holiday Acres Camping Resort East Well
Boone County
175 3 1
Holiday Acres Camping Resort West Well
Boone County
175 3 1
Ledges Swim Club
Winnebago County
175 3 1
Oconnells Beach/office
Lee County
175 3 0
Calhoun
Calhoun · Richland County
172 1 0
600 Waukegan Road
Cook County
170 4 1
Beautiful Savior Church
Lake County
170 1 0
Horizons Child Care
Fayette County
170 8 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.