Source document
Leyden Twsp Water District, IL 2014 Consumer Confidence Report
The original annual drinking-water report. Every number on the Leyden Twsp Water District, IL water quality page is pulled from this document.
The Leyden Twsp Water District, IL figures for 2014 come from EPA's national Safe Drinking Water database (SDWIS / ECHO) — not a single utility-published PDF. Every value on the Leyden Twsp Water District, 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