Source document
Rancho California Water District, CA 2025 Consumer Confidence Report
The original annual drinking-water report. Every number on the Rancho California Water District, CA water quality page is pulled from this document.
The Rancho California Water District, CA figures for 2025 come from EPA's national Safe Drinking Water database (SDWIS / ECHO) — not a single utility-published PDF. Every value on the Rancho California Water District, 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