During the mid-20th century, the Housatonic River and its floodplain were contaminated with polychlorinated biphenyls (PCBs) and other hazardous substances released from the General Electric Company (GE) facility in Pittsfield. The contaminated area, known as the General Electric/Housatonic River Site, includes the GE manufacturing facility; the Housatonic River, its riverbanks and floodplains from Pittsfield to Long Island Sound, and former river oxbows that have been filled; Allendale School; Silver Lake; and other areas contaminated as a result of GE's operations in Pittsfield.