Upon failure of persons to comply with the notice, the fire chief or his duly authorized representative shall cause the materials or growths constituting such menace to be removed, and shall file a report with the council advising that the removal was required and has been done, the cost of doing such work and the name of the owner or owners of the property upon which the work was required. (Ord. No. 988 (NCS), § 3; Ord. No. 1242 (NCS), § 2.)