Any act or omission defined in MMC 12.32.010 shall constitute a public nuisance. Upon notice by a city official to the party causing or allowing said public nuisance, said party shall abate the same to the satisfaction of the city within twenty-four hours of being so notified. If the party fails to abate the nuisance as required, the city may proceed to clean the public right-of-way with its own labor and equipment, and bill the direct costs thereof, plus a twenty-five percent surcharge, to the responsible party. Said party shall pay the same to the city within ten days of receiving an invoice. (Ord. 843, 1987)