All water systems in Illinois
5,097 systems
| System | Serves | Status | Rules violated, 3 yr | Unresolved |
|---|---|---|---|---|
|
Big Rock Plowing Match Kane County |
220 | 2 | 1 | |
|
Bissell Village MHC Springfield · Sangamon County |
220 | 0 | 0 | |
|
Elizabethtown Elizabethtown · Hardin County |
220 | 0 | 0 | |
|
Lily Lake Grade School Kane County |
220 | 5 | 1 | |
|
Mother Teresa Catholic Academy Will County |
220 | 3 | 0 | |
|
Northbrook MHC Springfield · Sangamon County |
220 | 0 | 0 | |
|
Riley Community School McHenry County |
220 | 5 | 0 | |
|
Riverside Pub McHenry County |
220 | 0 | 0 | |
|
ST Bede School Lake County |
220 | 4 | 0 | |
|
Aqua Illinois-Indianola Indianola · Vermilion County |
219 | 0 | 0 | |
|
Kingdom Hall of Jehovahs Witnesses McHenry County |
219 | 0 | 0 | |
|
Alden Long Grove Nursing Center Long Grove · Lake County |
218 | 0 | 0 | |
|
Maquon Maquon · Knox County |
218 | 3 | 0 | |
|
Rolling Meadows MHC (jefferson Co) Jefferson County |
218 | 0 | 0 | |
|
Heiden Gardens Condos Lake County |
217 | 1 | 0 | |
|
Joliet Treatment Center Joliet · Will County |
217 | 0 | 0 | |
|
Donnellson Donnellson · Bond County |
216 | 5 | 1 | |
|
Powers Water Co, Inc. Kane County |
216 | 2 | 1 | |
|
Eureka Bible Church Woodford County |
215 | 0 | 0 | |
|
Harvard Hills Water Corporation Washington · Tazewell County |
215 | 3 | 2 | |
|
Venado Lakes-Argyll Water Association Tazewell County |
215 | 0 | 0 | |
|
Seaton Seaton · Mercer County |
214 | 4 | 0 | |
|
Maranatha Bible Church Cook County |
213 | 3 | 0 | |
|
Moores Prairie Township Water Company Belle Rive · Jefferson County |
213 | 0 | 0 | |
|
Thebes Thebes · Alexander County |
213 | 0 | 0 | |
|
Grove Medical Center Lake County |
210 | 0 | 0 | |
|
Indian Creek Homeowners and Water Assn. McLean County |
210 | 1 | 1 | |
|
Indian Creek Pool Well Grundy County |
210 | 0 | 0 | |
|
Metra Aurora Train Station DuPage County |
210 | 0 | 0 | |
|
Sylvan Lake 1st Subdivision Lake County |
210 | 6 | 0 | |
|
Twisters Lake County |
210 | 0 | 0 | |
|
Bone Gap Bone Gap · Edwards County |
209 | 5 | 1 | |
|
Ilur Portfolio 5-Surbana Estates MHP LLC Urbana · Champaign County |
209 | 1 | 0 | |
|
Briarcrest Sbdv Homeowners Association Lake County |
207 | 2 | 1 | |
|
Nason Jefferson County |
207 | 0 | 0 | |
|
Amc Theaters Cook County |
206 | 0 | 0 | |
|
Harborside Marina Boat Slips Will County |
206 | 0 | 0 | |
|
Towners Subdivision Lake County |
206 | 2 | 2 | |
|
Wellington Wellington · Iroquois County |
206 | 0 | 0 | |
|
Cortland Corners MHP DeKalb County |
205 | 10 | 3 | |
|
The Preserve at Long Grove Long Grove · Lake County |
204 | 5 | 1 | |
|
Fox Creek Farms Water Company Peoria County |
203 | 0 | 0 | |
|
IL American-Ridgecrest Grundy County |
203 | 0 | 0 | |
|
University Flats MHP Edwardsville · Madison County |
203 | 1 | 0 | |
|
Pulaski Pulaski · Pulaski County |
202 | 3 | 0 | |
|
EJ Water-Montrose Montrose · Effingham County |
201 | 0 | 0 | |
|
Air View MHP Rock Island County |
200 | 3 | 1 | |
|
American Nickeloid LaSalle County |
200 | 1 | 0 | |
|
Amstar Lake County |
200 | 0 | 0 | |
|
Apostolic Christian Church (135673) Tazewell County |
200 | 0 | 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.