Source document
Holland Brook School, NJ 2021 Consumer Confidence Report
The original annual drinking-water report. Every number on the Holland Brook School, NJ water quality page is pulled from this document.
The Holland Brook School, NJ figures for 2021 come from EPA's national Safe Drinking Water database (SDWIS / ECHO) — not a single utility-published PDF. Every value on the Holland Brook School, NJ 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