 In 2020, the owner of Osprey Environmental Engineering, Robert Grabarek, was sued by the town of Fairfield for illegally using PCB contaminated material to build a berm. PCBs were used in the production of television and refrigerators until their manufacturing was banned from the US in 1979. According to the National Oceanic and Atmospheric Administration, PCBs are harmful chemicals that are toxic to humans and can degrade natural environments and waterways.