Source document
Twin Valley Inc, CA 2011 Consumer Confidence Report
The original annual drinking-water report. Every number on the Twin Valley Inc, CA water quality page is pulled from this document.
The Twin Valley Inc, CA figures for 2011 come from EPA's national Safe Drinking Water database (SDWIS / ECHO) — not a single utility-published PDF. Every value on the Twin Valley Inc, 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