Source document
Naf El Centro, CA 2026 Consumer Confidence Report
The original annual drinking-water report. Every number on the Naf El Centro, CA water quality page is pulled from this document.
The Naf El Centro, CA figures for 2026 come from California's SDWIS Electronic Data Transfer (EDT) library — not a single utility-published PDF. Every value on the Naf El Centro, 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://www.waterboards.ca.gov/drinking_water/certlic/drinkingwater/EDTlibrary.html