Fr. Hladio served as treasurer/secretary for the UCC – OPC from 2010-13. He wrote monthly columns in the "Visnyk" (UOCC) for youth and adults, and his writings about Orthodoxy in Ukraine have been published online by Fordham University. During his priestly career he has been involved in community, commemorative, charitable, youth, and cultural events and activities, and has participated in the life of various Ukrainian organizations in Ontario including Suspilna Sluzhba in Hamilton.