All water systems in Illinois
5,097 systems
| System | Serves | Status | Rules violated, 3 yr | Unresolved |
|---|---|---|---|---|
|
Zen Leaf Cook County |
369 | 0 | 0 | |
|
Arapaho Village MHP Belleville · St. Clair County |
368 | 0 | 0 | |
|
Roberts Roberts · Ford County |
367 | 2 | 0 | |
|
Orient Orient · Franklin County |
362 | 0 | 0 | |
|
Humboldt Humboldt · Coles County |
361 | 0 | 0 | |
|
Marquette Building Cook County |
360 | 0 | 0 | |
|
New Canton New Canton · Pike County |
359 | 0 | 0 | |
|
Cottonwood Cove MHP Springfield · Sangamon County |
358 | 0 | 0 | |
|
Herrick Herrick · Shelby County |
358 | 4 | 1 | |
|
Norris Norris · Fulton County |
358 | 0 | 0 | |
|
Sparland Sparland · Marshall County |
358 | 0 | 0 | |
|
Parkersburg Parkersburg · Richland County |
356 | 0 | 0 | |
|
Apostolic Christian Faith of Eureka Woodford County |
355 | 0 | 0 | |
|
Crosspoint Community Church Woodford County |
355 | 0 | 0 | |
|
Jeffersonville (geff) Jeffersonville · Wayne County |
355 | 2 | 0 | |
|
Table Grove Table Grove · Fulton County |
353 | 1 | 0 | |
|
Forrest Park MHP Springfield · Sangamon County |
352 | 0 | 0 | |
|
Secor Secor · Woodford County |
351 | 4 | 3 | |
|
Allied Locke Industries Lee County |
350 | 0 | 0 | |
|
Als Tap #1 Lake County |
350 | 0 | 0 | |
|
Central Galilee United Methodist Church Cook County |
350 | 2 | 0 | |
|
Convenient Plaza Hot Bread Cook County |
350 | 0 | 0 | |
|
Diamond Lake School Lake County |
350 | 3 | 0 | |
|
EJ Water-Dewey Champaign County |
350 | 2 | 1 | |
|
Falcon Farms Rock Island County |
350 | 1 | 0 | |
|
Lord of Glory/gloryland Pre-Sc Lake County |
350 | 2 | 0 | |
|
Mid-American Air Center Lawrence County |
350 | 2 | 0 | |
|
Newport School Lake County |
350 | 5 | 2 | |
|
Oakwood Twp High School Vermilion County |
350 | 7 | 2 | |
|
Oregon Tool Ogle County |
350 | 0 | 0 | |
|
Pheasant Run MHP Springfield · Sangamon County |
350 | 2 | 0 | |
|
Rainbow Council Scout Res Main Grundy County |
350 | 2 | 0 | |
|
Resurrection Church McHenry County |
350 | 0 | 0 | |
|
West Oak Middle School Lake County |
350 | 1 | 0 | |
|
Winslow Winslow · Stephenson County |
350 | 4 | 3 | |
|
Zion Lutheran Church (25015) Will County |
350 | 1 | 0 | |
|
Apple River Apple River · Jo Daviess County |
347 | 3 | 0 | |
|
Summerfield Summerfield · St. Clair County |
347 | 0 | 0 | |
|
Sorelle Lake County |
345 | 0 | 0 | |
|
Bellflower Bellflower · McLean County |
343 | 0 | 0 | |
|
Meadows of Bloomington MHP McLean County |
343 | 2 | 0 | |
|
New Minden New Minden · Washington County |
343 | 0 | 0 | |
|
Panama Panama · Bond County |
343 | 4 | 3 | |
|
Varna Varna · Marshall County |
342 | 1 | 0 | |
|
Decatur Correctional Center Decatur · Macon County |
341 | 0 | 0 | |
|
Ruma Ruma · Randolph County |
341 | 2 | 1 | |
|
Cog Hill Country Club Cook County |
340 | 3 | 1 | |
|
Greater Quad City Auto Auction Rock Island County |
340 | 6 | 1 | |
|
Ilcv Candle Mhp, LLC Coal Valley · Rock Island County |
340 | 4 | 1 | |
|
Maeystown Maeystown · Monroe County |
340 | 1 | 1 |
About this data
Rules violated counts the rules a system was in violation of in the past three years, including monitoring and reporting lapses; one rule can carry several violations. Unresolved is the number of those rules currently in violation at EPA's latest data refresh.
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.