Source document
Ponderosa Basin Mutual Wtr Co, CA 2025 Consumer Confidence Report
The original annual drinking-water report. Every number on the Ponderosa Basin Mutual Wtr Co, CA water quality page is pulled from this document.
The Ponderosa Basin Mutual Wtr Co, 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 Ponderosa Basin Mutual Wtr Co, 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