An accident at a hydraulic fracturing site in northern Colorado killed one worker and seriously injured two others Thursday, authorities said. The three men were trying to heat a frozen high-pressure water line at the oil or gas well site when it ruptured, Weld County sheriff’s Sgt. Sean Standridge said. One man was hit by a stream of water or fracking fluid and died from the impact. The accident happened near Mead, about 35 miles north of Denver, on the fourth straight day of frigid weather in the region. “The pipe was frozen and they were trying to heat it up to get it flowing again,” Standridge said. The injured men were flown to hospitals, he said. The temperature in the area was about zero at the time of the accident, National Weather Service meteorologist Bob Kleyla said. Overnight, the temperature had dropped to minus […]