Emergency responders were dispatched Thursday morning to a Sifton-area day care after someone reported smelling natural gas.Firefighters responded about 7:55 a.m. to 7715 N.E. 119th Place for a hazmat investigation. The business listed at the address is Orchards KinderCare.Arriving fire crews reported that they did not smell gas. NW Natural was called out to investigate the odor and arrived about 8:12 a.m., according to emergency radio traffic monitored at The Columbian.Firefighters took some of the toddlers who evacuated from the day care to nearby businesses to get them out of the cold; baby cribs were wheeled out of the entrance, according to the scanner.NW Natural reported that everyone could re-enter the building around 8:24 a.m.Utility employees determined gas was not the source of the odor, said Stefanie Week, public information officer for NW Natural. They did not find what caused the smell, she said.Week encouraged anyone who smells gas to call it in.“They did the right thing by calling,” she said.