Radiation News Roundup July 30, 2014 Radioactive tsunami debris found far from Fukushima plant. enenews.com Radioactive materials detected off California. enenews.com The Canadian nuclear regulator has approved a one-year extension to the operating licence of the Darlington nuclear power plant. world-nuclear-news.org Ur-Energy says Shirley Basin has the potential to be its next Wyoming production centre. world-nuclear-news.org