The Brief Residents of a historic Dallas apartment building were forced to evacuate due to a ruptured water line. The water line on the 20th floor flooded apartments and caused an electrical short. Residents of the Historic Dallas Mercantile Building were forced to evacuate due to a Thursday water malfunction that caused major damage. Dallas Mercantile building evacuationFOX 4 spoke to some of the displaced residents as they were grabbing their belongings, and they shared their frustrations with the response from the property owner and management company. King told FOX 4 the water came into his home from the ceiling.