(Vegetation and Litter. Ord. 21495, 1978-10-03; Ord. 23875 § 1-4, 1987-06-09; Ord. 24112 § 1-2, 1988-06-07; Ord. 24533 § 2, 1990-01-02; repealed by Ord. 27536 § 3, 2006-10-17)