All water systems in Illinois
724 systems
| System | Serves | Status | Rules violated, 3 yr | Unresolved |
|---|---|---|---|---|
|
Chain O Lakes Floor Lake County |
25 | 0 | 0 | |
|
Chain O Lakes Stt PK Unspec Pl In Co · Lake County |
25 | 0 | 0 | |
|
Chain O' Lakes Floor Lake County |
25 | 0 | 0 | |
|
Chain Olakes State Park Lake County |
25 | 0 | 0 | |
|
Chain-O-Lakes State Park Lake County |
25 | 0 | 0 | |
|
Chain-O-Lakes/oak PT Ramp #1 Lake County |
25 | 0 | 0 | |
|
Clinton Lake (sra) Doc De Witt County |
25 | 0 | 0 | |
|
Clinton Lake (sra) Doc De Witt County |
25 | 0 | 0 | |
|
Clinton Lake (sra) Doc De Witt County |
25 | 0 | 0 | |
|
Clinton Lake (sra) Doc (103242) De Witt County |
25 | 0 | 0 | |
|
Clinton Lake (sra) Doc (6221) De Witt County |
25 | 0 | 0 | |
|
Clinton Lake Nrth Frk (sra) Doc (4127) De Witt County |
25 | 0 | 0 | |
|
Clinton Lake Sra De Witt County |
25 | 0 | 0 | |
|
Comlara Evergreen Lake McLean County |
25 | 0 | 0 | |
|
Craig's Lake Clark County |
25 | 0 | 0 | |
|
Crane Lake Club Mason County |
25 | 0 | 0 | |
|
Crane Lake Hunting Club Mason County |
25 | 0 | 0 | |
|
Crescent Lake Henry County |
25 | 0 | 0 | |
|
Crescent Lake Henry County |
25 | 0 | 0 | |
|
Crystal Lake Airport McHenry County |
25 | 0 | 0 | |
|
Crystal Lake Campground & Beac Lee County |
25 | 0 | 0 | |
|
Crystal Lake Country Club McHenry County |
25 | 0 | 0 | |
|
Crystal Lake Country Club McHenry County |
25 | 0 | 0 | |
|
Crystal Lake Disposal McHenry County |
25 | 0 | 0 | |
|
Crystal Lake Disposal INC McHenry County |
25 | 0 | 0 | |
|
Crystal Lake Motel Whiteside County |
25 | 0 | 0 | |
|
Crystal Lake Motel Whiteside County |
25 | 0 | 0 | |
|
Crystal Lake Rentals McHenry County |
25 | 0 | 0 | |
|
Crystal Lake Rentals McHenry County |
25 | 0 | 0 | |
|
Crystal Lake Veternary Hospit McHenry County |
25 | 0 | 0 | |
|
Dee-N-W-Lake Champaign County |
25 | 0 | 0 | |
|
Deer Ridge Lakes Adams County |
25 | 0 | 0 | |
|
Deer Ridge Lakes Adams County |
25 | 0 | 0 | |
|
Dunlap Lakes Camping Club Peoria County |
25 | 0 | 0 | |
|
Eagle Crystal Lake/glacier Wat McHenry County |
25 | 0 | 0 | |
|
Echo Lake Block IV Wtr Assn Ela Twp · Lake County |
25 | 0 | 0 | |
|
Eureka Lake Park Cruger Twnshp Woodford County |
25 | 0 | 0 | |
|
Eureka Lake Park Cruger Twnshp Woodford County |
25 | 0 | 0 | |
|
Evergreen Lake Macoupin County |
25 | 0 | 0 | |
|
Evergreen Lake Macoupin County |
25 | 0 | 0 | |
|
Evergreen Lake Macoupin County |
25 | 0 | 0 | |
|
Farm Lake Estates Champaign County |
25 | 0 | 0 | |
|
Fish Lake Beach Lake County |
25 | 0 | 0 | |
|
Fish Lake Beach Lake County |
25 | 0 | 0 | |
|
Fish Lake Beach Lake County |
25 | 0 | 0 | |
|
Fish Lake Beach Lake County |
25 | 0 | 0 | |
|
Fish Lake Beach Well #2 Lake County |
25 | 0 | 0 | |
|
Fish Lake Beach Well #3 Lake County |
25 | 0 | 0 | |
|
Fish Lake Beach Well #4 Lake County |
25 | 0 | 0 | |
|
Fish Lake Beach INC Lake 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.