The US Environmental Protection Agency (US EPA) has identified two chemicals known as PFOS (perfluorooctane sulfonate) and PFOA (perfluorooctanoic acid) as emerging contaminants.
Through monitoring conducted under a US EPA program known as the Unregulated Contaminant Monitoring Rule, PFOS was detected in public supply wells in the vicinity of the New York State Air National Guard Base at Gabreski Airport located at Old Riverhead Road in Westhampton Beach.