County · Illinois
Fayette County, Illinois: drinking water records
This overview covers 9 ZIP codes and 9 community water systems in Fayette County. It also stands in for 0 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 |
|---|---|---|---|---|---|
| Vandalia IL0510350 | 7,616 | 120 | 0 | 1 | 3.3 ppb |
| Fayette Water Company IL0510010 | 5,608 | 300 | 0 | 7 | 0 ppb |
| Ramsey IL0510200 | 966 | 0 | 0 | 3 | 0 ppb |
| Brownstown IL0510100 | 740 | 0 | 0 | 1 | 0 ppb |
| Vandalia Correctional Center IL0515500 | 700 | 120 | 0 | 0 | 15 ppb |
| St Elmo IL0510250 | 1,272 | 0 | 0 | 0 | 0 ppb |
| Farina IL0510150 | 540 | 0 | 0 | 0 | 1.6 ppb |
| St Peter IL0510300 | 483 | 0 | 0 | 0 | 2.9 ppb |
| Kaskaskia Springs Water Co. IL0510020 | 1 | 0 | 0 | 0 | not reported |
ZIP reports in Fayette County
No ZIP report in this county is published yet.
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.