All rates and charges for municipal utilities, including, but not by way of limitation, rates for service, permit fees, deposit, connection and meter testing fees, disconnection fees, reconnection fees including penalties for non-payment if any, shall be fixed, determined and amended by the Council and adopted by resolution. The resolution, containing the effective date thereof, shall be kept on file and open to inspection in the office of the City Administrator and shall be uniformly enforced. For the purpose of fixing the rates and charges, the Council may categorize and classify under the various types of service; provided that, the categorization and classification shall be included in the resolution authorized by this section.