Each proposed tentative tract map or parcel map shall be set for a public hearing before the advisory agency. Notice of the time and place of said public hearing, including a general description of the location of the proposed subdivision, shall be given by the advisory agency at least 10 days before the hearing by United States mail, postage prepaid, addressed to the owners of all real property located within a radius of at least three hundred feet from the external boundaries of the proposed subdivision, addressed to said owners as shown on the latest equalized assessment roll of the County of Orange. The advisory agency shall also give notice of said hearing by publication in the manner set forth in Government Code Section 66451.3. (Ord. 4064 § 1; October 23, 1979.)