All water systems in Illinois
5,097 systems
| System | Serves | Status | Rules violated, 3 yr | Unresolved |
|---|---|---|---|---|
|
Meridian Village Glen Carbon · Madison County |
339 | 0 | 0 | |
|
Alma Alma · Marion County |
336 | 5 | 2 | |
|
Kampsville Kampsville · Calhoun County |
335 | 1 | 0 | |
|
New Piasa Chautauqua PWS Jersey County |
335 | 4 | 2 | |
|
Messiah Lutheran Presch and Kinder Lake County |
334 | 0 | 0 | |
|
Fellowship of Faith Lutheran Church McHenry County |
330 | 0 | 0 | |
|
IL American-Broadlands Broadlands · Champaign County |
330 | 1 | 0 | |
|
Ludlow Ludlow · Champaign County |
330 | 0 | 0 | |
|
Middletown Middletown · Logan County |
330 | 2 | 0 | |
|
Imperial MHC Shorewood · Will County |
328 | 0 | 0 | |
|
Bristol Grade School Kendall County |
325 | 2 | 0 | |
|
Deluxe Lake Estates MHP Bellevue · Peoria County |
325 | 2 | 0 | |
|
Easton Easton · Mason County |
325 | 2 | 0 | |
|
Flat Rock Flat Rock · Crawford County |
325 | 2 | 1 | |
|
Fremont School Dist 6-8 Lake County |
325 | 2 | 0 | |
|
Gavin South School Lake County |
325 | 5 | 2 | |
|
Legacy Academy Winnebago County |
325 | 1 | 0 | |
|
Mancuso Village Park MHP New Millford · Winnebago County |
325 | 1 | 0 | |
|
Peotone Intermediate Center Will County |
325 | 2 | 0 | |
|
Trinity Evang Lutheran Church Lake County |
325 | 0 | 0 | |
|
Victory Christian Center McLean County |
325 | 8 | 1 | |
|
Hardys Reindeer Ranch Champaign County |
324 | 0 | 0 | |
|
Latham Latham · Logan County |
323 | 3 | 3 | |
|
Kinderhook Kinderhook · Pike County |
322 | 0 | 0 | |
|
Seatonville Seatonville · Bureau County |
321 | 0 | 0 | |
|
IL American-Liberty Ridge East Wheaton · DuPage County |
320 | 0 | 0 | |
|
Patterson (inc AS Wilmington) Wilmington · Greene County |
320 | 1 | 0 | |
|
Snowstar INC Rock Island County |
320 | 0 | 0 | |
|
Stonetown Oaks MHP LLC Tolono · Champaign County |
320 | 0 | 0 | |
|
Woodland Woodland · Iroquois County |
319 | 4 | 1 | |
|
Malden Malden · Bureau County |
318 | 1 | 1 | |
|
EJ Water-Coalton Coalton · Montgomery County |
317 | 2 | 0 | |
|
IL American-Nettle Creek Grundy County |
317 | 0 | 0 | |
|
Arrowsmith Arrowsmith · McLean County |
315 | 0 | 0 | |
|
Full Moon Restaurant Lake County |
315 | 3 | 1 | |
|
Fillmore Fillmore · Montgomery County |
313 | 2 | 2 | |
|
Fsh Water Commission Smithton · St. Clair County |
313 | 2 | 0 | |
|
Lee Lee · Lee County |
313 | 2 | 0 | |
|
Aqua Illinois-Oakview Joliet · Will County |
312 | 2 | 0 | |
|
Fields Hill Improvement Association LaSalle County |
312 | 7 | 4 | |
|
Glen Eden Estates Homeowners Association Cook County |
312 | 3 | 0 | |
|
Mount Clare Mount Clare · Macoupin County |
311 | 1 | 0 | |
|
Armington Armington · Tazewell County |
310 | 0 | 0 | |
|
The Forge: Lemont Quarries Cook County |
305 | 2 | 0 | |
|
Little York Little York · Warren County |
304 | 3 | 0 | |
|
Bardolph Bardolph · McDonough County |
303 | 1 | 0 | |
|
Jewett Jewett · Cumberland County |
303 | 0 | 0 | |
|
Montebello Estate Will County |
303 | 1 | 0 | |
|
DG Partners Marshall County |
302 | 0 | 0 | |
|
3m Chemical Operations LLC Rock Island County |
300 | 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.