No person engaged in outdoor advertising shall permit any refuse resulting from the work to accumulate anywhere in the city, except by placing it in properly established refuse receptacles. No person shall permit any loose or flapping combustible material to hang from or be attached to any billboard, signboard or other place used for display or advertising purposes. All refuse resulting from the operation of the business shall be carefully gathered up and properly disposed of.
(2000 Code, § 5.42.050) Penalty, see § 10.99