At 15:17 hours on 5-9-10, the RIT was dispatched to assist Company 44. Springfield PD was on location at the Victory Cleaners, 2 East Springfield Rd with heavy smoke showing. The RIT assignment cleared at 15:57. At that time, the crew stood by at station 44 for the cover.  At 16:26 hrs, the cover companies were dispatched to 220 Hillview rd to investigate the CO alarm.