Source document
Durand, IL 2010 Consumer Confidence Report
The original annual drinking-water report. Every number on the Durand, IL water quality page is pulled from this document.
The Durand, 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 Durand, 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