If upon the expiration of the 30 day period the required underground facilities have not been provided, the City Engineer shall forthwith proceed to do the work; provided, however, if such premises are unoccupied and no electric or communications services are being furnished thereto, the City Engineer may in lieu of providing the required underground facilities authorize the disconnection and removal of any and all overhead service wires and associated facilities supplying utility service to the property. Upon completion of the work by the City Engineer, he or she shall file a written report with the City Council setting forth the fact that the required underground facilities have been provided and the cost thereof, together with a legal description of the property against which such cost is to be assessed. The Council shall thereupon fix a time and place for hearing protests against the assessment of the cost of such work upon such premises, which said time shall not be less than ten days thereafter.
(`78 Code, § 13.20.130.)