ZIP 01057: your water comes from Monson Water and Sewer Dept
Monson Water and Sewer Dept is the only community water system that reports serving ZIP 01057 (Hampden County, Massachusetts) under EPA's UCMR 5. PFAS-4 at the latest sample (2023): 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.
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.