Source document

Tonawanda Elementary School, WI 2019 Consumer Confidence Report

The original annual drinking-water report. Every number on the Tonawanda Elementary School, WI water quality page is pulled from this document.

The Tonawanda Elementary School, WI figures for 2019 come from EPA's national Safe Drinking Water database (SDWIS / ECHO) — not a single utility-published PDF. Every value on the Tonawanda Elementary School, WI 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