According to NC State researcher Detlef Knappe (Project 4), who has studied PFAS in North Carolina’s water supply, biosolids application has been linked to high levels of PFAS in surface water, private wells, and even drinking water sources like Cane Creek Reservoir, which supplies Chapel Hill and Carrboro. “We measured almost 2,000 nanograms per liter of PFAS in one of the tributaries to Cane Creek Reservoir,” Knappe explained. “Another tributary was around 800 nanograms per liter. As we moved away from those fields, PFAS levels dropped to nearly undetectable levels.” Click HERE to read more.