All water systems in Illinois
10 systems
| System | Serves | Status | Rules violated, 3 yr | Unresolved |
|---|---|---|---|---|
|
The Old Clubhouse on Lake Calhoun Knox County |
100 | 0 | 0 | |
|
Calhoun Knights Columbus #4417 Calhoun County |
50 | 0 | 0 | |
|
Club Calhoun Calhoun County |
50 | 0 | 0 | |
|
Calhoun Housing Authority Calhoun Housing · Stephenson County |
25 | 0 | 0 | |
|
Lake Calhoun Assn INC a Knox County |
25 | 0 | 0 | |
|
Lake Calhoun Assn INC B Knox County |
25 | 0 | 0 | |
|
Lake Calhoun Assn INC C Knox County |
25 | 0 | 0 | |
|
Lake Calhoun Association #1 Knox County |
25 | 0 | 0 | |
|
Lake Calhoun Association #2 Knox County |
25 | 0 | 0 | |
|
Lake Calhoun Association #3 Knox 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.