Home Articles Mesa Water Celebrates Flag Day Mesa Water Celebrates Flag Day Posted: Monday, July 1, 2019 In commemoration of Flag Day, members of Costa Mesa-based Cub Scout Pack 108 led Mesa Waterās Board of Directors and staff in a ceremony and Pledge of Allegiance on June 13 at the Districtās headquarters. The troop was comprised of students in grades K-5, from Woodland and Kaiser Elementary Schools. Mesa Water staff also unveiled new American flag decals on Mesa Waterās service trucks and uniforms.