Source document
Groton Board of Education, CT 2022 Consumer Confidence Report
The original annual drinking-water report. Every number on the Groton Board of Education, CT water quality page is pulled from this document.
The Groton Board of Education, CT figures for 2022 come from EPA's national Safe Drinking Water database (SDWIS / ECHO) — not a single utility-published PDF. Every value on the Groton Board of Education, CT 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