Source document
Wailuku, HI 2018 Consumer Confidence Report
The original annual drinking-water report. Every number on the Wailuku, HI water quality page is pulled from this document.
The Wailuku, HI figures for 2018 come from EPA's national Safe Drinking Water database (SDWIS / ECHO) — not a single utility-published PDF. Every value on the Wailuku, HI 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