The terms of the member and alternate who are members of the Board of Supervisors shall be one (1) year and shall commence on February 1 and end on January 31. The terms of rotating members shall be four (4) years and shall commence on February 1 and end on January 31. A vacancy shall exist upon the death, resignation or termination of residence within the designated area from which the member was appointed. Vacancies shall be filled for the unexpired term by the appointing authority. Each member shall serve upon the appointment and qualification of a successor. Of the initial members, two (2) chosen by lot shall serve a term of two (2) years. The terms of service shall be computed from February 1, 1999. (§ 1, Ord. 1231, eff. January 7, 1999, retroactive to December 8, 1998; as amended by § 2, Ord. 1238, eff. July 29, 1999, and § 4, Ord. 1247, eff. June 22, 2000)