Centreville — Union Mill Elementary school held an end-of-year barbecue on Monday, June 17, for all of its students. The students ate lunch outside on the blacktop on beach towels and blankets. The school’s Watch D.O.G.S. (Dads of Great Students) volunteers grilled the hamburgers and hot dogs, and helped distribute the food, drinks and ice cream to students. A DJ played music, while students danced and hula-hooped.