In the event of an emergency hazardous material release occurring on a local street or highway within the limits of the city, the police department or other law enforcing agency having jurisdiction for the affected area, shall be responsible for scene management until containment and clean-up has been performed. In the event of a nonemergency release, responsibility for scene management shall be placed with the most appropriate agency or responsible party as determined by the police department. (Prior code § 4514)