The retirement system manager shall certify to the director of finance the rate of contribution for each member. The director of finance shall apply such rate of contribution to the compensation, before deduction for any reason other than absence from duty, of the member to determine the amount to be contributed by each member, as a deduction from such compensation on each payroll and shall furnish a copy of each and every such payroll to the retirement system manager; and each of such amounts shall be deducted by the director of finance and shall be deposited in the retirement system, and shall be credited, together with interest, to the individual account of the member for whom the contribution was made.
Cash payments may be made by any member of amounts necessary to correct or adjust the contribution account of such member. The amount so paid shall be deposited and credited in the same manner as if deducted on a payroll. (Prior code § 34.11.1101)