Source document
Ponca City Mun Water, OK 1999 Consumer Confidence Report
The original annual drinking-water report. Every number on the Ponca City Mun Water, OK water quality page is pulled from this document.
The Ponca City Mun Water, OK figures for 1999 come from EPA's national Safe Drinking Water database (SDWIS / ECHO) — not a single utility-published PDF. Every value on the Ponca City Mun Water, 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