Source document
Heritage Improvement District, OR 2025 Consumer Confidence Report
The original annual drinking-water report. Every number on the Heritage Improvement District, OR water quality page is pulled from this document.
The Heritage Improvement District, OR figures for 2025 come from EPA's national Safe Drinking Water database (SDWIS / ECHO) — not a single utility-published PDF. Every value on the Heritage Improvement District, OR 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