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
Millstadt Sportsmans Club
St. Clair County 		25 1 0
Monroe Center Church
Ogle County 		25 3 1
Monroe Center Oasis
Ogle County 		25 1 0
North Creek Meadow 6286
Cook County 		25 3 1
Nussbaum Transportation #2
McLean County 		25 5 1
Oak Creek Tennis Club
Kendall County 		25 3 1
Off the Street Club-Camp Mathieu
DuPage County 		25 3 0
Paddle Wheel Inn
Ogle County 		25 2 0
Pearl Lake RV Resort Llc-Backup
Winnebago County 		25 3 1
Pearl Lake RV Resort Llc-North Well
Winnebago County 		25 3 1
Peoria Sportsmens Club
Tazewell County 		25 2 1
Pere Marquette State Park
Jersey County 		25 1 0
Prophet Hills Country Club
Whiteside County 		25 3 1
Putnam CO Conservation Dist
Putnam County 		25 3 1
Riverview Lodge
Carroll County 		25 2 1
Rochelle Wildlife Club (17137)
Ogle County 		25 3 1
Rock-A-Bago Hall
Winnebago County 		25 2 1
Sand Ridge State Forest Head Qtr #1
Mason County 		25 3 1
Sand Ridge State Forest Pine Camp #2
Mason County 		25 3 1
Sandwich Sportsmans Club
DeKalb County 		25 3 1
Sandy Oaks Cmpgrnd/dale Garner
Henderson County 		25 3 1
Sangchris State Park Deer Run (95901)
Christian County 		25 2 0
Scarlett's Cabaret
St. Clair County 		25 3 1
Schiller Woods N GR14 3077
Cook County 		25 2 1
Serenity Hospice & Home
Ogle County 		25 3 1
Seward Boco
Winnebago County 		25 3 1
Shalom Assembly of Yahweh
Whiteside County 		25 2 0
Skycrest Animal Hospital
Lake County 		25 1 0
Spring Lake Conservation Area (126136)
Tazewell County 		25 3 1
Spring Lake Conservation Area (34702)
Tazewell County 		25 3 1
Spring Pointe LLC
Tazewell County 		25 2 1
ST Peters Lutheran Church/little Saints
Kane County 		25 2 1
Starlite Campers
Morgan County 		25 3 1
Stonefort Campground
Knox County 		25 4 1
Strope's Campground
Carroll County 		25 3 2
Sugar Spring Ranch Banquet
Monroe County 		25 1 0
Tacos Neno
Winnebago County 		25 3 1
Ted Lechowicz Woods
Cook County 		25 3 1
The Wedron Office
LaSalle County 		25 2 1
Timber Pnte Otdr Cntr-Main Cam
McLean County 		25 3 1
Travlur Motel
Winnebago County 		25 2 1
Tri-County Country Club
Hancock County 		25 3 1
Two Rivers United Methodist CH Camp
Rock Island County 		25 2 1
Two Wheel Inn
Winnebago County 		25 3 1
Vasa Park Association 16th District
Kane County 		25 1 0
Vollmer Bike Trail 5329
Cook County 		25 3 1
Volo Bog State Natural Area
Lake County 		25 1 0
Walcamp Lutheran Retreat-Bathhouse South
DeKalb County 		25 2 0
Walcamp Lutheran Retreat-Kitchen
DeKalb County 		25 1 0
Walcamp Lutheran Retreat-Pavillion
DeKalb 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.