When all materials, appliances or other equipment have been removed from the streets and sidewalks, and all damage to streets, sidewalks, curbs, plants, shrubs or trees has been repaired or rectified, all to the satisfaction of the Director of Public Works, the Director of Public Works shall refund the deposits required by this chapter, or such portion or portions thereof then remaining, upon the surrender of the deposit receipts representing the moneys deposited as guaranties. Should the cost of any work performed by the Director of Public Works or at their direction exceed the total amount of money deposited, the person, firm or corporation from whom said deposits were money deposited, the person, firm or corporation from whom said deposits were required shall be held liable for the cost of any and all repair and removal which is in excess of the amount deposited, and it shall be the duty of claims which is in excess of the moneys deposited. (Ord. 4111-NS § 9, 1965)