ZIP 11941: your water comes from Suffolk County Water Authority

Suffolk County Water Authority is the only community water system that reports serving ZIP 11941 (Suffolk County, New York) under EPA's UCMR 5 (reported by the system to EPA). PFAS-4 at the latest sample (2025): 29.1 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 Suffolk County Water Authority