In an order on March 3, U.S. District Judge William C. Griesbach, who is presiding over the long-running Comprehensive Environmental Response, Compensation, and Liability Act litigation concerning the Lower Fox River and Green Bay Superfund Site, reversed his prior ruling that NCR Corp. is not liable for response costs incurred at operable unit one of the site, located upstream of any facilities from which NCR discharged polychlorinated biphenyls. See Appvion Inc. v.