Nearly a decade after 300 people sued Unisys Corp. and others over alleged groundwater contamination associated with a site in Grand Island, Neb., Gibson, Dunn & Crutcher negotiated a settlement in 2013.

Most of the plaintiffs had been dismissed early in the case. But on May 13, Gibson Dunn secured dismissals against 13 plaintiffs through a stipulated judgment and then shot down the personal-injury and medical claims of 34 more. Gibson Dunn partner Daniel Nelson and of counsel Melanie Katsur, both in Washington, reached a confidential settlement that the parties filed with the court on July 18.