Source document

United School District 304, IL 1999 Consumer Confidence Report

The original annual drinking-water report. Every number on the United School District 304, IL water quality page is pulled from this document.

The United School District 304, IL figures for 1999 come from EPA's national Safe Drinking Water database (SDWIS / ECHO) — not a single utility-published PDF. Every value on the United School District 304, IL 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