Source document

Naval Observatory, DC 2023 Consumer Confidence Report

The original annual drinking-water report. Every number on the Naval Observatory, DC water quality page is pulled from this document.

The Naval Observatory, DC figures for 2023 come from EPA's national Safe Drinking Water database (SDWIS / ECHO) — not a single utility-published PDF. Every value on the Naval Observatory, DC 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