Colorado joins Washington state in its concerns about health and safety worriesabout mercury storage. Gov. Bill Ritter has sent a letter to U.S. Energy Sec. Steven Chu saying he opposes storing the metal near Grand Junction, according to the Colorado Independent. Earlier this week, a Washington state official told Department of Energy official proposals to store mercury at the Hanford Nuclear Reservation could jeopardize cleanup efforts there. The federal government is facing a 2013 deadline to find a plan to store mercury waste in the U.S. to avoid unsafe dumping overseas.