A fire Friday night inside a Crystal Lake chemical supply company caused about $35,000 in damage and required a large emergency response. Crystal Lake firefighters responded to an activated fire alarm about 6:50 p.m. at the Rita Corporation, 850 S. Route 31 in Crystal Lake, according to a news release from the Crystal Lake Fire Rescue Department. When crews arrived, they noticed smoke inside the building, but the building's sprinkler system helped control the spread of any flames. Firefighters extinguished the blaze.