The sewerage system commissioner shall be the general executive officer of the city sewer system, public and private and shall have charge of all employees and property pertaining to such system. He shall keep a correct record of all mains, valves, lines, manholes and installations pertaining to, or a part of such system. He shall keep an accurate and correct record of all receipts from such systems and make out all bills for sewer rent and materials furnished to users, collect the same and deposit the proceeds to the credit of the sewerage system fund with the treasurer in accordance with directions from the council. He shall submit all bids, payrolls and accounts to the council for approval. He shall issue all permits for tapping mains and the like. He shall render a monthly statement to the council of the preceding month's operation of his department. (1953 R.C.)