The superintendent shall, under the direction of the mayor and council, have charge of the water and sewer system and all appurtenances and equipment thereof. He shall supervise the laying of mains and service pipes for the sewer and water system and shall perform such other duties connected therewith as shall be required by law or by his contract of employment. He shall supply a fidelity bond to the city in the amount of not less than five thousand dollars ($5,000.00) to assure the faithful performance of his duties, and the prompt enforcement, collection, and application of all fees and charges due for the water and sewer service supplied by the system. (1986 Code)