Source document
Jefferson County Wcid 10, TX 2018 Consumer Confidence Report
The original annual drinking-water report. Every number on the Jefferson County Wcid 10, TX water quality page is pulled from this document.
The Jefferson County Wcid 10, TX figures for 2018 come from EPA's national Safe Drinking Water database (SDWIS / ECHO) — not a single utility-published PDF. Every value on the Jefferson County Wcid 10, 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