The storm water drainage fee established in section 12.30.010 shall be an annual charge.  A proportionate amount of the fee is due at the same time and in the same manner as the garbage, water or sewer utility payments.  The city manager may authorize annual billings to those accounts that do not otherwise receive a city utility bill or the property owner may request an annual bill.  All charges shall be payable in advance.  (Ord. 90/T-9312)