Nitrite violations in Illinois
213 active public water systems in Illinois had a Nitrite violation in the past three years, 7 of them in the latest quarter of EPA's data. What Nitrite is and why it matters.
Systems with a Nitrite violation
Latest quarter first, then largest first| System | Serves | Status | Rules violated, 3 yr | Unresolved |
|---|---|---|---|---|
|
Q C Mart Rock Island County |
25 | 1 | 0 | |
|
Rinks Holding LLC Will County |
25 | 3 | 1 | |
|
Riverside Park Winnebago County |
25 | 2 | 1 | |
|
Rochelle Wildlife Club (17137) Ogle 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 | |
|
Spring Lake Conservation Area (126136) Tazewell County |
25 | 3 | 1 | |
|
Spring Lake Conservation Area (55905) Tazewell County |
25 | 3 | 1 | |
|
ST Johns United Church of Chr Will County |
25 | 2 | 1 | |
|
Stone City Kennel Club Will County |
25 | 2 | 1 | |
|
Tacos Neno Winnebago County |
25 | 3 | 1 | |
|
Walker Estates Park Will County |
25 | 3 | 1 | |
|
Winnebago Landfill Winnebago County |
25 | 3 | 0 |
About this data
A system is counted once if any of its violations in the past three years involved Nitrite, including monitoring and reporting lapses. Rules violated and status in the table are for the whole system, not Nitrite 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.