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
Wolf Creek Golf Course
Livingston County
100 3 1
Armstrong-Ellis Grade School
Vermilion County
97 3 0
Criswell Court MHP
Joliet · Will County
94 8 3
Jons MHP
LaSalle County
92 3 0
Marshell Station
LaSalle County
90 3 1
Sunset Ridge MX Campground
Bureau County
90 2 1
Tomahawk Campground #1 (21568)
Bond County
90 3 0
Tomahawk Campground #2 (96024)
Bond County
90 3 0
Nussbaum Transportation
McLean County
85 5 2
Sunrise Senior Living
Prospect Heights · Cook County
82 1 0
7th Day Adventist Church
Will County
80 3 1
First Church of God Joliet
Will County
80 1 0
Phelan Acres Bible Church
Will County
80 1 0
ST Patrick Missionary Church
Kane County
80 2 1
Trinity Lutheran School
Randolph County
80 9 1
Big Rock Campground
Kane County
75 2 0
Boone Lake Conservation Association INC
Boone County
75 1 0
Camp Hillcrest Lodge East
Winnebago County
75 3 1
Chana Education Center
Ogle County
75 2 0
Clinton Country Club
De Witt County
75 3 1
Faith Connection of Wilton Center
Will County
75 3 1
Green River Saddle Club
Lee County
75 3 1
Hatcher Recreation Area
Grundy County
75 2 0
Honeycutt Hill MHP LLC
Morrison · Whiteside County
75 3 0
Leisure Lake Campground Entrance
Whiteside County
75 1 0
Mad Jacks INC
Mason County
75 3 0
MHC Pine Country LLC Pump House
Boone County
75 3 1
Montgomery Plaza Partners, LLC
Kane County
75 3 0
Mutiny Boat Club Boat House
Lake County
75 3 2
Palace Campground and RV Shower Bldg
Jo Daviess County
75 3 2
Ruffit Park (97121)
Whiteside County
75 3 0
Sycamore RV Resort
DeKalb County
75 2 1
The Filling Station
Winnebago County
75 2 0
The Happy Spot
Whiteside County
75 3 1
The Lodge Off 66
Logan County
75 2 0
Tradewinds Marina
Lake County
75 3 0
Fork and Vine
Union County
70 3 1
Bristol Tap
Kendall County
65 2 1
Cropsey Mutual Water Association
McLean County
65 7 2
Kennedy Pointe
Kendall County
65 2 1
Camp Bullfrog
Cook County
62 3 1
Allens Corner
Kane County
60 3 1
Camp Akita Bathhouse Well
Knox County
60 1 0
Drakes Bar
Logan County
60 3 1
Fin and Feather Camping Resort
Carroll County
60 2 0
Indian Springs Golf Club
Montgomery County
60 3 0
Laz Club INC Drilled Well
Henry County
60 3 1
Masjid AL Huda
Cook County
60 2 1
Ministaio Punto de Contacto
Lake County
60 1 0
Owl Creek Vineyard Cobden
Union County
60 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.