Source document

Jefferson Waterworks, WI 2017 Consumer Confidence Report

The original annual drinking-water report. Every number on the Jefferson Waterworks, WI water quality page is pulled from this document.

The Jefferson Waterworks, WI figures for 2017 come from EPA's national Safe Drinking Water database (SDWIS / ECHO) — not a single utility-published PDF. Every value on the Jefferson Waterworks, WI 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