ZIP 01760: your water comes from Natick Water and Sewer Division
Natick Water and Sewer Division is the only community water system that reports serving ZIP 01760 (Middlesex County, Massachusetts) under EPA's UCMR 5. PFAS-4 at the latest sample (2025): 40.8 ng/L. 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 Natick Water and Sewer Division
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.