>> reporter: hayashi says she's asked the school board to explain the delay. >>> workers in fukushima have started building an intermediate storage complex for soil and waste contaminated in the 2011 nuclear disaster. >> repter: ground breaking remonies were held tuesday in the towns of futaba and okuma. it'll be on a site that straddles the two. one will store waste and one will store soil. >> translator: i want each one of you to take pride in being a part of this essential work for regional revival. >> reporter: many tons of material were contaminated five years ago when the fukushima daiichi nuclear plant suffered a meltdown. officials say it hadn't been possible to acquire land for the new site. the environment ministry plans to start operating the complex about a year from now. >>> japan's nuclear regulator has again given approval for an aging reactor to operate beyond a mandated 40-year limit. >> reporter: the regulator gave the green light for up to 20 more years of operation. the reactor is part of the mihama nuclear power plant in central japan. the regulator the reactor me