All water systems in Illinois
5,097 systems
| System | Serves | Status | Rules violated, 3 yr | Unresolved |
|---|---|---|---|---|
|
South Wilmington Firemans #1 Grundy County |
500 | 0 | 0 | |
|
Spoon River Speedway Fulton County |
500 | 3 | 1 | |
|
Spring Grove Elementary School McHenry County |
500 | 6 | 0 | |
|
ST Marys of Fremont Church Lake County |
500 | 0 | 0 | |
|
ST Peters Church McHenry County |
500 | 0 | 0 | |
|
Starved Rock State Park (94227) LaSalle County |
500 | 3 | 0 | |
|
Sterling Steel Whiteside County |
500 | 0 | 0 | |
|
Supermart Shell Lake County |
500 | 0 | 0 | |
|
The Great Sauk Trail-West Bureau County |
500 | 0 | 0 | |
|
The Pasture Church Woodford County |
500 | 0 | 0 | |
|
Toors Lake County |
500 | 0 | 0 | |
|
Tower Hill Tower Hill · Shelby County |
500 | 0 | 0 | |
|
Walmart Supercenter East Peoria Tazewell County |
500 | 0 | 0 | |
|
White Fence Farm Will County |
500 | 1 | 0 | |
|
Quentin RD Bible Baptist CH Lake County |
499 | 2 | 1 | |
|
Aqua Illinois-Sun River Terrace Sun River Terrace · Kankakee County |
498 | 0 | 0 | |
|
Congerville Congerville · Woodford County |
497 | 0 | 0 | |
|
Golf Golf · Cook County |
497 | 0 | 0 | |
|
Ullin Ullin · Pulaski County |
496 | 2 | 1 | |
|
Croppers 1st 4th and 5th Addition Rock Island County |
495 | 1 | 0 | |
|
North Meadow Village MHP Normal · McLean County |
495 | 6 | 3 | |
|
Bowen Bowen · Hancock County |
494 | 0 | 0 | |
|
Buckner Buckner · Franklin County |
494 | 1 | 0 | |
|
Junction City Junction City · Marion County |
494 | 1 | 0 | |
|
Scott County Rural Water Co-Op Scott County |
493 | 1 | 1 | |
|
Belknap Belknap · Johnson County |
490 | 2 | 1 | |
|
Cherry Cherry · Bureau County |
490 | 0 | 0 | |
|
Fayetteville Fayetteville · St. Clair County |
490 | 0 | 0 | |
|
IL American-Wildwood Rockford · Winnebago County |
490 | 1 | 0 | |
|
Woodland a and B MHP Rock Island County |
490 | 3 | 0 | |
|
Burnt Prairie Burnt Prairie · White County |
486 | 1 | 1 | |
|
Joliet Inpatient Treatment Center Joliet · Will County |
486 | 0 | 0 | |
|
Thompsonville Thompsonville · Franklin County |
486 | 3 | 0 | |
|
Aqua Illinois-Nunda McHenry County |
485 | 0 | 0 | |
|
Fithian Fithian · Vermilion County |
485 | 3 | 0 | |
|
White City White City · Macoupin County |
485 | 0 | 0 | |
|
Medora Medora · Macoupin County |
484 | 0 | 0 | |
|
Altona Altona · Knox County |
483 | 1 | 0 | |
|
ST Peter Saint Peter · Fayette County |
483 | 1 | 1 | |
|
Buda Buda · Bureau County |
482 | 2 | 0 | |
|
Mount Auburn Mount Auburn · Christian County |
480 | 2 | 0 | |
|
Towanda Towanda · McLean County |
480 | 3 | 2 | |
|
United School District 304 Warren County |
480 | 3 | 0 | |
|
San Jose San Jose · Mason County |
479 | 0 | 0 | |
|
Hammond Hammond · Piatt County |
478 | 0 | 0 | |
|
Versailles Versailles · Brown County |
478 | 0 | 0 | |
|
Alsey-Glasgow Water Commission Alsey · Scott County |
475 | 0 | 0 | |
|
Cornerstone Christian Academy McLean County |
475 | 5 | 0 | |
|
Industry Industry · McDonough County |
475 | 2 | 0 | |
|
Ledgewood Elementary School Winnebago County |
470 | 2 | 0 |
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.