Brian Schoenborn, who was hired in late December to direct operations at the Luce, Mackinac, Alger, and Schoolcraft (LMAS) District Health Department, will leave the agency Friday, November 13, and his role as health officer will be assumed by Nick Derusha, who will also continue to serve as the director of environmental health, Mr. Schoenborn told The St. Ignace News Tuesday, October 20.