(June 4, 2018, 9:23 AM EDT) -- CENTRAL ISLIP, N.Y. — A municipal water district on May 31 filed a brief in a New York federal court contending that Northrop Grumman’s bill of costs in the litigation between the parties concerning contaminated groundwater should be denied in its entirety (Bethpage Water District v. Northrop Grumman Corporation, et al., No. 13-6362, E.D. N.Y.)....