To the extent practicable, the cable system shall be engineered, constructed and maintained to provide for an audio alert system which would allow authorized officials or designated representatives of the city to override the audio signal on all channels and to transmit and report emergency information. In the case of any sudden, unforeseen event potentially causing significant damage, destruction, or loss of life, a grantee shall make the audio alert system available without charge to the city or any other governmental or civil defense agency that the city shall designate for the duration of such emergency or disaster. (Ord. 5531 § 2, 2004.)