In response to the release or threatened release of hazardous substances at or from the Site, EPA undertook response actions at the Site under Section 104 of CERCLA, 42 U.S.C. 9604. In August 2010, EPA conducted a removal action to address releases of friable asbestos, as well as releases of olychlorinated biphenyls (?PCBs?), at the Site. EPA removed the friable asbestos, asbestos-containing material, demolished structures that could not be safely decontaminated, and removed containers containing PCBs. In December 2011, EPA completed its response action and demobilized from the Site. In performing its response action, EPA has incurred response costs at or in connection with the Site.