Source document
Quapaw, OK 1994 Consumer Confidence Report
The original annual drinking-water report. Every number on the Quapaw, OK water quality page is pulled from this document.
The Quapaw, OK figures for 1994 come from EPA's national Safe Drinking Water database (SDWIS / ECHO) — not a single utility-published PDF. Every value on the Quapaw, 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