Source document
Equality, IL 1997 Consumer Confidence Report
The original annual drinking-water report. Every number on the Equality, IL water quality page is pulled from this document.
The Equality, IL figures for 1997 come from EPA's national Safe Drinking Water database (SDWIS / ECHO) — not a single utility-published PDF. Every value on the Equality, 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