All water systems in Illinois
5,097 systems
| System | Serves | Status | Rules violated, 3 yr | Unresolved |
|---|---|---|---|---|
|
Solstice Advanced Materials Us, INC Massac County |
470 | 3 | 0 | |
|
Emden Emden · Logan County |
467 | 0 | 0 | |
|
Naplate Naplate · LaSalle County |
465 | 2 | 0 | |
|
Ohio Ohio · Bureau County |
465 | 0 | 0 | |
|
Woodland Acres MHP Springfield · Sangamon County |
464 | 0 | 0 | |
|
Cutler Cutler · Perry County |
463 | 3 | 1 | |
|
German Valley German Valley · Stephenson County |
463 | 0 | 0 | |
|
Lostant Lostant · LaSalle County |
463 | 2 | 2 | |
|
Meadowbrook MH Community, LLC Belleville · St. Clair County |
463 | 4 | 1 | |
|
Plumfield Water District Franklin County |
460 | 0 | 0 | |
|
Plymouth Plymouth · Hancock County |
460 | 1 | 0 | |
|
Allendale Allendale · Wabash County |
458 | 0 | 0 | |
|
IL American-Saunemin Saunemin · Livingston County |
456 | 0 | 0 | |
|
Dalton City Dalton City · Moultrie County |
454 | 1 | 0 | |
|
Hoffman Hoffman · Clinton County |
452 | 0 | 0 | |
|
New Salem Pwd Petersburg · McDonough County |
451 | 0 | 0 | |
|
Beaverville Beaverville · Iroquois County |
450 | 5 | 0 | |
|
Cedar Brook Estates Subdivision Rock Island County |
450 | 3 | 2 | |
|
Chain of Lakes Comm Bible Chur Lake County |
450 | 0 | 0 | |
|
Emmons Grade School Lake County |
450 | 4 | 1 | |
|
Farmington Bath & Tennis Club Lake County |
450 | 0 | 0 | |
|
Fremont Intermediate School 3-5 Lake County |
450 | 2 | 0 | |
|
Hume Hume · Edgar County |
450 | 1 | 1 | |
|
Lake Thunderbird Subdivsion Putnam County |
450 | 2 | 1 | |
|
Langleyville Pwd Christian County |
450 | 1 | 1 | |
|
Neponset Neponset · Bureau County |
450 | 3 | 3 | |
|
Oak Lawn MHP Boone County |
450 | 3 | 0 | |
|
Twin Orchard Country Club Lake County |
450 | 3 | 0 | |
|
Ipava Ipava · Fulton County |
447 | 0 | 0 | |
|
Rolling Meadows MHC Ogle County |
447 | 2 | 0 | |
|
DE Land De Land · Piatt County |
446 | 5 | 1 | |
|
IL American-Moreland Cook County |
445 | 0 | 0 | |
|
Joppa Joppa · Massac County |
445 | 3 | 1 | |
|
Alexander Water District Morgan County |
442 | 2 | 0 | |
|
Edgewood Edgewood · Effingham County |
440 | 0 | 0 | |
|
LA Grange Estates MHP La Grange · Cook County |
440 | 1 | 0 | |
|
Marietta Marietta · Fulton County |
440 | 0 | 0 | |
|
Milburn Church Lake County |
440 | 0 | 0 | |
|
Sabic Innovative Plastics LaSalle County |
440 | 1 | 0 | |
|
Wildwood Baptist Church Rock Island County |
440 | 0 | 0 | |
|
Little Swan Lake SD Little York · Warren County |
438 | 1 | 0 | |
|
Mount Vernon Association INC Jo Daviess County |
438 | 2 | 0 | |
|
Bonnie Bonnie · Jefferson County |
437 | 2 | 0 | |
|
Scales Mound Scales Mound · Jo Daviess County |
436 | 2 | 1 | |
|
Beason Chestnut Pwd Logan County |
435 | 2 | 0 | |
|
Dover Straits Lake County |
435 | 0 | 0 | |
|
Hull Hull · Pike County |
435 | 0 | 0 | |
|
Olmsted Olmsted · Pulaski County |
435 | 0 | 0 | |
|
Karnak Karnak · Pulaski County |
432 | 1 | 1 | |
|
Reed School Will County |
431 | 1 | 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.