Source document
Northside Water, TX 2015 Consumer Confidence Report
The original annual drinking-water report. Every number on the Northside Water, TX water quality page is pulled from this document.
The Northside Water, TX figures for 2015 come from EPA's national Safe Drinking Water database (SDWIS / ECHO) — not a single utility-published PDF. Every value on the Northside Water, TX 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