On November 20, 2009, the federal District Court for the Central District of California entered a Consent Decree resolving all claims and dismissing with prejudice the litigation in Preservation Aviation, et al. v. United States, et al. The litigation stems from a 2004 removal action Region 9 conducted in North Hollywood, California. The Site  a warehouse and storage yard  was with approximately one million aircraft instruments, many of which were contaminated with radium and radon gas. EPA ultimately disposed of all the instruments and demolished the warehouse, leaving the Site sufficiently clean for unrestricted use. The operator PRPs  Preservation Aviation, Inc., its owner, Jeffrey Pearson  together with Mr. PearsonÂs wife, Ann Pearson, sued EPA, alleging that EPA conspired to harm them, committed negligence in the course of the removal, and effected an unconstitutional taking of private property without due process and without just compensation. EPA counterclaimed to recover its cleanup costs at the site. On the basis of the PRPs ability to pay, the United States compromised its unrecovered costs of approximately $2.5 million.