A plan to turn the former Fresh Kills Landfill on Staten Island into a public park may be delayed indefinitely, according to the New York Post. After three decades of planning, the foundation for the would-be 2,200-acre park has begun sinking, according to the New York City Department of Parks & Recreation, which said that sand used to fill the foundation has now sunk between eight inches and a foot. This setback is the latest in a series of headaches for the park project, which was originally estimated to cost $6.8 million in 2006, but is now projected to cost $14 million. The price ballooned in part due to the discovery of toxic PCBs on the site, which cost roughly $4.5 million to clear out. [Post]