The arbitration award shall be determined by a majority of the members of the arbitration panel, and shall be in writing. If it is necessary for the panel to make determinations of fact, it shall include findings of fact and conclusions with the award if requested by any party to the proceeding. The award shall be issued and mailed to the parties not later than ninety (90) calendar days following the close of the arbitration hearing. (Prior code § 20.10.838)