Illinois
McLean County drinking water quality
90 active public water systems serve 172,529 people in McLean County. 44 are compliant, 46 had at least one EPA violation in the past three years, 2 are designated serious violators, and 3 carry a health flag.
Needs attention
Community water systems
36 systems, largest first| System | Serves | Status | Rules violated, 3 yr | Unresolved |
|---|---|---|---|---|
|
Bloomington Bloomington |
79,000 | 2 | 0 | |
|
Normal Normal |
52,736 | 0 | 0 | |
|
Illinois State University-Normal Normal |
6,600 | 4 | 0 | |
|
LE Roy Le Roy |
3,498 | 4 | 2 | |
|
Heyworth Heyworth |
2,853 | 0 | 0 | |
|
Lexington Lexington |
1,930 | 1 | 0 | |
|
Hudson Hudson |
1,847 | 2 | 0 | |
|
Bloomington Township Pwd West Phase |
1,800 | 0 | 0 | |
|
Chenoa Chenoa |
1,800 | 2 | 1 | |
|
Gridley Gridley |
1,411 | 0 | 0 | |
|
Hilltop MHP Bloomington |
1,360 | 7 | 2 | |
|
Downs Downs |
1,201 | 3 | 1 | |
|
Danvers Danvers |
1,089 | 1 | 0 | |
|
Colfax Colfax |
989 | 1 | 1 | |
|
Bloomington Township Pwd-Crestwicke Bloomington |
900 | 1 | 0 | |
|
McLean Mclean |
791 | 1 | 0 | |
|
Saybrook Saybrook |
679 | 0 | 0 | |
|
Stanford Stanford |
600 | 0 | 0 | |
|
Carlock Carlock |
562 | 1 | 0 | |
|
North Meadow Village MHP Normal |
495 | 6 | 3 | |
|
Towanda Towanda |
480 | 3 | 2 | |
|
Blm GW Mhp, LLC Bloomington |
390 | 6 | 2 | |
|
Bellflower Bellflower |
343 | 0 | 0 | |
|
Meadows of Bloomington MHP |
343 | 2 | 0 | |
|
Arrowsmith Arrowsmith |
315 | 0 | 0 | |
|
Willow Creek North MHP Bloomington |
250 | 7 | 0 | |
|
Ellsworth Ellsworth |
225 | 0 | 0 | |
|
Indian Creek Homeowners and Water Assn. |
210 | 1 | 1 | |
|
Spin Lake Homeowners Association, Inc. |
200 | 1 | 0 | |
|
Colonial Meadows Water Company |
193 | 1 | 1 | |
|
Anchor Anchor |
160 | 2 | 1 | |
|
Cooksville Cooksville |
157 | 2 | 0 | |
|
Meadows Mennonite Home |
140 | 8 | 1 | |
|
Westwind Estates |
120 | 1 | 0 | |
|
Cropsey Mutual Water Association |
65 | 7 | 2 | |
|
Country Lane MHP |
50 | 0 | 0 |
Non-community systems (54: schools, campgrounds, workplaces, restaurants)
These systems serve places people visit rather than homes.
Inactive systems (152, no longer operating or reporting)
Kept for the record and excluded from the county totals above. Browse inactive systems.
About this data
Totals cover active systems. Systems serving more than one county are counted in each county. EPA counts the rules a system was in violation of, not the individual violations; one rule can carry several.
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. Retrieved from ECHO on Oct 11, 2026.