Source document
San Mar, MD 2024 Consumer Confidence Report
The original annual drinking-water report. Every number on the San Mar, MD water quality page is pulled from this document.
The San Mar, MD figures for 2024 come from EPA's national Safe Drinking Water database (SDWIS / ECHO) — not a single utility-published PDF. Every value on the San Mar, MD 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