Source document
Mason County Lost Lake, WA 2024 Consumer Confidence Report
The original annual drinking-water report. Every number on the Mason County Lost Lake, WA water quality page is pulled from this document.
The Mason County Lost Lake, WA figures for 2024 come from EPA's national Safe Drinking Water database (SDWIS / ECHO) — not a single utility-published PDF. Every value on the Mason County Lost Lake, WA 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