Source document
Wenona, IL 1994 Consumer Confidence Report
The original annual drinking-water report. Every number on the Wenona, IL water quality page is pulled from this document.
The Wenona, IL figures for 1994 come from EPA's national Safe Drinking Water database (SDWIS / ECHO) — not a single utility-published PDF. Every value on the Wenona, 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