County · Illinois
Scott County, Illinois: drinking water records
This overview covers 4 ZIP codes and 6 community water systems in Scott 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 |
|---|---|---|---|---|---|
| Exeter-Merritt Water Coop IL1710010 | 820 | 0 | 0 | 3 | 1.6 ppb |
| Bluffs IL1710100 | 748 | 60 | 0 | 0 | 0 ppb |
| Manchester IL1710250 | 297 | 0 | 0 | 3 | 0 ppb |
| Winchester IL1710350 | 1,589 | 0 | 0 | 0 | 0 ppb |
| Scott County Rural Water Co-Op IL1710020 | 493 | 0 | 0 | 0 | 0 ppb |
| Alsey-Glasgow Water Commission IL1715050 | 475 | 0 | 0 | 0 | 0 ppb |
ZIP reports in Scott 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.