A spill of deuterium laced heavy water triggered radiation detection equipment at the Point Lepreau Nuclear facility in New Brunswick. The alarm prompted an evacuation of the reactor building where the spill occurred. The facility is in the last stages of a $1.4 billion refurbishment, which has so far gone $1 billion over budget, and was loading heavy water into the moderator system when the spill occurred. The spill was contained within the reactor building and is not expected to cause any environmental damage. The alarms were triggered because of the presence of tritium in the heavy water, one of the unique aspects of AECL’s Candu nuclear reactor.