Source document
Rowland Water District, CA 2021 Consumer Confidence Report
The original annual drinking-water report. Every number on the Rowland Water District, CA water quality page is pulled from this document.
The Rowland Water District, CA figures for 2021 come from EPA's national Safe Drinking Water database (SDWIS / ECHO) — not a single utility-published PDF. Every value on the Rowland 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