(Section 4.820 amended by Ordinance No. 19500, enacted September 28, 1987; administratively amended by Ordinance No. 20113, enacted April 6, 1998, effective May 6, 1998; and amended by Ordinance No. 20161, enacted July 26, 1999, effective August 26, 1999; and repealed by Ordinance No. 20446, enacted December 14, 2009, effective January 1, 2010.)