Workers at the Hanford nuclear site were ordered to take cover on Friday after a large holding tank with ammonia vapor was discovered to be leaking near the vitrification plant in the 200 East Area. Workers in that area were told to shelter in place with doors, windows and ventilation closed while other workers were told to avoid the 200 East Area. The Hanford Site is a decommissioned nuclear production complex operated by the United States federal government on the Columbia River in Benton County in the U.S. state of Washington The 200 East Area…
