Two-thirds of New Jersey’s public water systems are contaminated with perfluorinated chemicals (PFCs), according to a study conducted by the state’s Department of Environmental Protection (DEP). The study results have been available for years but were only published on May 1. They were kept secret by the DEP until the group Delaware Riverkeeper Network (DRN) filed an Open Public Record Act request and obtained the data in July 2013. PFCs are a ubiquitous family of chemicals used in products from food packaging to textile coatings and stain-and-water repellants. They are also known as “Teflon chemicals,” after the famous brand-name non-stick cookware that is made using them. More