PFAS

The U.S. Geological Survey (USGS) New England Water Science Center, in cooperation with the Connecticut Department of Economic and Community Development (CT DECD) and the Connecticut Department of Energy and Environmental Protection (CT DEEP), is investigating the occurrence of per- and polyfluoroalkyl substances (PFAS) in soils and shallow groundwater across the state of Connecticut. The studies...

The U.S. Geological Survey (USGS), in cooperation with the U.S. Environmental Protection Agency (EPA), is developing tools and methods to help assess the fate and transport of anthropogenic and geologically sourced contaminants in the water cycle at waste sites throughout the nation.

The U.S. Geological Survey (USGS) is supporting the U.S. Environmental Protection Agency (EPA) in assessing facilities nationwide that have historically produced per- and polyfluoroalkyl substances (PFAS) or used them in chemical manufacturing processes. In collaboration with EPA subcontractors, USGS is providing subject-matter expertise in PFAS fate and transport in the vadose zone and...

Per- and polyfluoroalkyl substances (PFAS) are a diverse group of over 4,000 different compounds. Since the 1940s, PFAS have been manufactured and used around the globe, including in the United States. PFAS are resistant to chemical and thermal breakdown and impart stain and water-resistance properties, making them useful for a variety of commercial applications, but also persistent in the...