ZIP 02472: your water comes from Watertown Department of Public Works
Watertown Department of Public Works is the only community water system that reports serving ZIP 02472 (Middlesex County, Massachusetts) under EPA's UCMR 5. PFAS-4 at the latest sample (2024): below the 3 to 4 ng/L reporting limit. Systems report their own ZIP lists to EPA; if your water bill names another utility, that utility's page carries its own results.
See the full PFAS results for Watertown Department of Public Works
Where this ZIP is
This site is a data project, not an official source. If in doubt, check with your water supplier or local authority.