County · Illinois
Macon County, Illinois: drinking water records
This overview covers 16 ZIP codes and 13 community water systems in Macon 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 |
|---|---|---|---|---|---|
| Mount Zion IL1150350 | 5,833 | 120 | 1 | 8 | 1.5 ppb |
| Forsyth IL1150200 | 3,490 | 60 | 0 | 1 | 0 ppb |
| Decatur IL1150150 | 76,122 | 120 | 0 | 0 | 2.6 ppb |
| Long Creek Township PWS IL1155150 | 7,850 | 60 | 0 | 0 | 2.8 ppb |
| Blue Mound IL1150100 | 1,300 | 0 | 0 | 2 | 1.3 ppb |
| Warrensburg IL1150500 | 1,230 | 0 | 0 | 1 | 7 ppb |
| Maroa IL1150300 | 1,700 | 0 | 0 | 0 | 3.7 ppb |
| Harristown IL1150210 | 1,320 | 0 | 0 | 0 | 0 ppb |
| Macon IL1150250 | 1,205 | 0 | 0 | 0 | 2.2 ppb |
| Argenta IL1150050 | 900 | 0 | 0 | 0 | 0 ppb |
| Oreana IL1150450 | 892 | 0 | 0 | 0 | 2.5 ppb |
| Ej Water-Niantic IL1150400 | 648 | 0 | 0 | 0 | 0 ppb |
| Boody Community Water Company IL1150020 | 232 | 0 | 0 | 0 | 1 ppb |
ZIP reports in Macon 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: 62514.
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.