Source document
Toluca, IL 2004 Consumer Confidence Report
The original annual drinking-water report. Every number on the Toluca, IL water quality page is pulled from this document.
The Toluca, IL figures for 2004 come from EPA's national Safe Drinking Water database (SDWIS / ECHO) — not a single utility-published PDF. Every value on the Toluca, 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