County · Illinois
McLean County, Illinois: drinking water records
This overview covers 24 ZIP codes and 35 community water systems in McLean County. It also stands in for 1 ZIP codes whose utility has too little EPA data for a page of its own.
System population figures are summed from EPA registry records and can overlap where wholesalers and retail systems serve the same people. They are not a Census county-population estimate.
Water systems with the most complete records
| Water system | People served | PFAS survey results | PFAS found | Health-based violations | Lead, 9 in 10 homes at or below |
|---|---|---|---|---|---|
| Le Roy IL1130750 | 3,498 | 60 | 0 | 4 | 49 ppb |
| Bloomington IL1130200 | 77,610 | 120 | 1 | 0 | 5.1 ppb |
| Normal IL1130900 | 52,736 | 60 | 0 | 0 | 5.5 ppb |
| Illinois State University-Normal IL1135510 | 6,600 | 60 | 0 | 0 | 0 ppb |
| Lexington IL1130800 | 1,930 | 0 | 0 | 1 | 0 ppb |
| Chenoa IL1130300 | 1,785 | 0 | 0 | 8 | 3 ppb |
| Gridley IL1130600 | 1,411 | 0 | 0 | 1 | 0 ppb |
| Hilltop MHP IL1130080 | 1,360 | 0 | 0 | 1 | 0 ppb |
| North Meadow Village MHP IL1130060 | 495 | 0 | 0 | 1 | 1.2 ppb |
| BLM Gw MHP, LLC IL1130210 | 390 | 0 | 0 | 1 | 0 ppb |
| Spin Lake Homeowners Association, INC. IL1135140 | 200 | 0 | 0 | 1 | 0 ppb |
| Colonial Meadows Water Company IL1135100 | 193 | 0 | 0 | 5 | 7 ppb |
| Cooksville IL1130400 | 157 | 0 | 0 | 6 | 1 ppb |
| Meadows Mennonite Home IL1135689 | 140 | 0 | 0 | 1 | 9 ppb |
| Cropsey Mutual Water Association IL1135150 | 65 | 0 | 0 | 2 | 3 ppb |
| Country Lane MHP IL1135385 | 50 | 0 | 0 | 1 | 0 ppb |
| Heyworth IL1130650 | 2,853 | 0 | 0 | 0 | 1.5 ppb |
| Hudson IL1130700 | 1,847 | 0 | 0 | 0 | 7.5 ppb |
| Bloomington Township Pwd West Phase IL1130040 | 1,800 | 0 | 0 | 0 | 8.5 ppb |
| Downs IL1130500 | 1,201 | 0 | 0 | 0 | 0 ppb |
| Danvers IL1130450 | 1,089 | 0 | 0 | 0 | 1.7 ppb |
| Colfax IL1130350 | 989 | 0 | 0 | 0 | 10.7 ppb |
| Bloomington Township Pwd-Crestwicke IL1135120 | 900 | 0 | 0 | 0 | 0 ppb |
| Mclean IL1130850 | 791 | 0 | 0 | 0 | 0 ppb |
| Saybrook IL1130950 | 679 | 0 | 0 | 0 | 5.1 ppb |
ZIP reports in McLean County
No ZIP report in this county is published yet.
These ZIP codes are covered by this overview because their utility has too little EPA data for a separate page: 61772.
Sources and scope
EPA UCMR 5 occurrence data, samples collected 2023-01-03 – 2026-06-17, final release, August 2026 (file dated Aug 28, 2026); EPA SDWIS via ECHO, 2026Q2 extract (file dated Jul 9, 2026); EPA service-area boundaries v3.0; Census 2020 ZCTAs. Page generated 2026-09-03.
Counts cover the systems that report this county to EPA. A water system may cross county lines. "Found" means at least one result at or above the laboratory reporting level; it is not a compliance finding.