 Since 1998, EPA, working with Potentially Responsible Parties, has removed nearly 450,000 cubic yards of contaminated material from the site, cleaned up and restored seven miles of the Kalamazoo River and banks, and capped 82 acres worth of contaminated material to lock it away.In September 2015, EPA signed a document called the Record of Decision for Area 1 of the river - Area 1 is the portion of the Kalamazoo River between Morrow Dam and the former Plainwell Dam, and includes Portage Creek between Cork Street and the Kalamazoo River.The cleanup for Area 1 includes excavation of PCB-contaminated areas in a two-mile section of the Kalamazoo River near the confluence of Portage Creek, and floodplain soil removal in the Plainwell Impoundment near the former Plainwell Dam.