Source document
Portola Improvement Association Mwc, CA 2025 Consumer Confidence Report
The original annual drinking-water report. Every number on the Portola Improvement Association Mwc, CA water quality page is pulled from this document.
The Portola Improvement Association Mwc, 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 Portola Improvement Association Mwc, 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