County · Illinois
Calhoun County, Illinois: drinking water records
This overview covers 6 ZIP codes and 5 community water systems in Calhoun 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 |
|---|---|---|---|---|---|
| Calhoun County Rwd IL0130010 | 4,675 | 60 | 0 | 1 | 4.5 ppb |
| Brussels IL0130100 | 136 | 0 | 0 | 1 | 2.6 ppb |
| Il American-Hardin IL0130200 | 839 | 0 | 0 | 0 | 1 ppb |
| Kampsville IL0130250 | 335 | 0 | 0 | 0 | 0 ppb |
| Batchtown IL0130050 | 220 | 0 | 0 | 0 | 2.4 ppb |
ZIP reports in Calhoun 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.