Early voting has started for the Aug. 10 runoff election and will last until Friday at 5 p.m. Registered voters can vote at the Board of Elections located on the first floor of the Newton County Administration Building at 1113 Usher St.Election officials and candidates agree the runoff is just as important as the primary election, yet runoff voter participation is generally much lower. According to the Board of Elections, in 2004, 30.8 percent of registered voters voted in the primary, but only 13.3 percent voted in the runoff.This year 19.9 percent, or 12,089 of the county's 60,721