While working on the gas main replacement program, Nicor workers noticed the absence of odorant. For resident safety, Nicor is switching service temporarily for some homes located on 91st street from Central to Tulley including Otto Pl from 52nd ave to 91st street. This will mean a temporary gas outage requiring Nicor employees to enter affected residents’ homes to relight appliances. All workers will have identification showing they are Nicor employees. Time of repairs are scheduled until approximately midnight tonight.