 Work on the last OU, Portage Creek, began in September 2011.From April to October 2012, the EPA removed about 12,000 cubic yards of PCB-contaminated soil and sediment from Portage Creek, replaced it with clean sediment, and planted new trees and other vegetation.The EPA planned to return to the site in March 2013 to “try to complete the last segment of Portage Creek, where the creek and the Kalamazoo River meet.” If necessary, the EPA planned additional work at Portage Creek in the summer of 2014.