Fairfax County has 23 brand-new firefighters and emergency medical personnel. The eight women and 15 men graduated in formal ceremonies last Friday night at the Fairfax County Government Center, following five-and-a-half months of extensive class-room and field work at the Fire Training Academy on West Ox Road. Theirs was the 124th Recruit Class to complete the rigorous training to prepare them for service in the world-class Fairfax County Fire and Rescue Department.