Apartment Building, Residential Fire marshal credits sprinkler with averting disaster in overnight apartment fire (Grafton, IL) November 17, 2014 viking210 There were no news trucks outside 100 Forest Lane at 3 a.m. Thursday, no reports of deaths from a terrible fire, no flames filling the darkened skies. Oh, there was a fire at an apartment at the 10-unit building and there was some damage to an apartment, but by the time firefighters arrived, the blaze was out because a single sprinkler head had been activated and doused the flames. No one was hurt.