Source document
Highland Isd, TX 2003 Consumer Confidence Report
The original annual drinking-water report. Every number on the Highland Isd, TX water quality page is pulled from this document.
The Highland Isd, TX figures for 2003 come from EPA's national Safe Drinking Water database (SDWIS / ECHO) — not a single utility-published PDF. Every value on the Highland Isd, 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