Source document
Quartz Hill Water Dist., CA 1994 Consumer Confidence Report
The original annual drinking-water report. Every number on the Quartz Hill Water Dist., CA water quality page is pulled from this document.
The Quartz Hill Water Dist., CA figures for 1994 come from EPA's national Safe Drinking Water database (SDWIS / ECHO) — not a single utility-published PDF. Every value on the Quartz Hill Water Dist., 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