All water systems in Illinois
20 systems
| System | Serves | Status | Rules violated, 3 yr | Unresolved |
|---|---|---|---|---|
|
Dupage CO Forest Preserve Dist DuPage County |
500 | 0 | 0 | |
|
Dupage CO Health Dept DuPage County |
300 | 0 | 0 | |
|
1st Presbyterian Church/dupage Will County |
200 | 0 | 0 | |
|
Dupage Unitarian Church DuPage County |
150 | 0 | 0 | |
|
Dupage CO Forest Preserve Dist DuPage County |
100 | 0 | 0 | |
|
Dupage CO Fst Psve Dist DuPage County |
100 | 0 | 0 | |
|
Dupage CO Fst Psve Dist DuPage County |
100 | 0 | 0 | |
|
Dupage County Forest Pres Dis DuPage County |
100 | 0 | 0 | |
|
Dupage Inn DuPage County |
100 | 0 | 0 | |
|
Dupage Motor Coach DuPage County |
100 | 0 | 0 | |
|
West Dupage Woods F P (hw-1) DuPage County |
50 | 0 | 0 | |
|
West Dupage Woods F P (hw-4) DuPage County |
50 | 0 | 0 | |
|
West Dupage Woods F P (hw-5) DuPage County |
50 | 0 | 0 | |
|
Dupage Cnty Care Unit Unspec Pl In Co · DuPage County |
25 | 0 | 0 | |
|
Dupage CO Pub Works Knollwood DuPage County |
25 | 0 | 0 | |
|
Dupage Twp Road Garage Will County |
25 | 0 | 0 | |
|
East Branch Dupage River Park Will County |
25 | 0 | 0 | |
|
Hammel Woods Dupage Will County |
25 | 0 | 0 | |
|
Lockport-Dupage Farmers Elevat Will County |
25 | 0 | 0 | |
|
Will Dupage Service CO Will County |
25 | 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.