Source document

Winchester, IL 2010 Consumer Confidence Report

The original annual drinking-water report. Every number on the Winchester, IL water quality page is pulled from this document.

The Winchester, IL figures for 2010 come from EPA's national Safe Drinking Water database (SDWIS / ECHO) — not a single utility-published PDF. Every value on the Winchester, IL water quality page is transcribed from that public dataset, and you can verify it against the same source below.

View the source dataset ↗

https://echo.epa.gov/tools/data-downloads/sdwa-download-summary