Source document
Southern Hills Estates, OK 2019 Consumer Confidence Report
The original annual drinking-water report. Every number on the Southern Hills Estates, OK water quality page is pulled from this document.
The Southern Hills Estates, OK figures for 2019 come from EPA's national Safe Drinking Water database (SDWIS / ECHO) — not a single utility-published PDF. Every value on the Southern Hills Estates, OK 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