(April 9, 2018, 4:35 PM EDT) -- GRAND RAPIDS, Mich. — A federal judge in Michigan on March 29 allocated liability for past response costs of the Kalamazoo River Superfund site among four companies that used polychlorinated biphenyls (PCBs) as part of their manufacturing of carbonless copy paper (CCP) but was unable to determine future response costs or the divisibility of the costs (Georgia-Pacific Consumer Products LP, et al. v. NCR Corp. et al., No. 11-CV-483, W.D. Mich., 2018 U.S. Dist. LEXIS 53373)....