SECTION 8.05. Municipal Utilities Separate Enterprises.
   Be it further enacted, That the water, electric, gas, transportation, telephone, or any other utility owned or operated by the city shall each be conducted as a separate enterprise as far as practicable, but joint operations for the purpose of using the same personnel and equipment to reduce costs and improve efficiency is authorized, providing the accounting system is maintained so as to show a reasonable allocation of such joint expenses to each utility.