Source document
Willmar, MN 2018 Consumer Confidence Report
The original annual drinking-water report. Every number on the Willmar, MN water quality page is pulled from this document.
The Willmar, MN figures for 2018 come from EPA's national Safe Drinking Water database (SDWIS / ECHO) — not a single utility-published PDF. Every value on the Willmar, MN 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