CDW has successfully collaborated with local municipalities and state authorities to ensure the safe and successful redevelopment of parks, playgrounds, and urban green space areas, with many presenting complex environmental challenges. Common issues encountered include soil contaminated with urban fill, petroleum, and polychlorinated biphenyls (PCBs), and the management of soils generated during redevelopment projects such as urban parks. Because many of these properties have histories of industrial or military use, converting to recreational use often requires more conservative remedial and/or risk evaluations.