Source document

Grinnell Water Department, IA 2025 Consumer Confidence Report

The original annual drinking-water report. Every number on the Grinnell Water Department, IA water quality page is pulled from this document.

The Grinnell Water Department, IA figures for 2025 come from EPA's national Safe Drinking Water database (SDWIS / ECHO) — not a single utility-published PDF. Every value on the Grinnell Water Department, IA 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