 In Akron, Ohio, soil was contaminated and noxious PCB-laden fumes had been put into the air by an electrical transformer deconstruction operation from the 1930s to the 1960s.From 1955 until 1977, the Sangamo Weston plant in Pickens, SC, used PCBs to manufacture capacitors, and dumped 400,000 pounds of PCB contaminated wastewater into the Twelve Mile Creek.In 1990, the EPA declared the site of the capacitor plant, its landfills and the polluted watershed, which stretches nearly downstream to Lake Hartwell as a Superfund site.