The 44-acre Wildcat Landfill site is located in Dover, Delaware. Private owners operated a landfill at the site, accepting municipal and industrial waste, until a state order closed the landfill due to numerous violations of a state permit. Operations scattered metal drums, tires and municipal trash over the surface of the landfill, dumped wastes into wetlands and left waste uncovered. Groundwater was contaminated with heavy metals, organics and polychlorinated biphenyls (PCBs). However, sampling of drinking water wells in 2001 showed no site-related contamination. Waste disposal contaminated groundwater. Following cleanup, EPA took the site off the Superfund program�s National Priorities List (NPL) in 2003. Monitoring is ongoing.