§ 10.10 GRADES AND ELEVATIONS; ELEVATIONS TO BE DESCRIBED IN RELATION TO OFFICIAL BASE.
   All official elevations hereafter established in the city shall be described, with reference to their elevations, as compared with the official base, in feet and decimal parts of a foot. No grade of official elevation shall be established other than by ordinance and in the manner described in §§ 10.08 and 10.09.
(1991 Code, § 1-10)