Source document

Western MWD, CA 1992 Consumer Confidence Report

The original annual drinking-water report. Every number on the Western MWD, CA water quality page is pulled from this document.

The Western MWD, CA figures for 1992 come from EPA's national Safe Drinking Water database (SDWIS / ECHO) — not a single utility-published PDF. Every value on the Western MWD, CA 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