nuclear-news

The discovery comes a day after the operator, the Tokyo Electric Power Company, or Tepco, admitted that it had found cesium particles in groundwater flowing into the Fukushima Daiichi plant, reversing its earlier assertion that the water was uncontaminated….

Tepco has struggled to deal with tens of millions of gallons of contaminated, toxic water at the plant, which must be stored in the large steel tanks that now occupy virtually every available bit of space there. The amount of radioactive water has continued to grow as groundwater has flowed at a rate of 100,000 gallons per day into the basements of the damaged reactor buildings. This contaminated water must be drawn off every day to prevent it from overwhelming makeshift systems that cool the melted reactors.

The company has installed a new filtering system that it says removes every type of radioactive particle but one, tritium. Still, that leaves it no choice but to keep storing the water rather than dumping it.

Wednesday’s leak underscored the risks of doing so at the plant, where a larger spill might potentially reach the nearby Pacific Ocean. The leaking tank had just been installed to store toxic water from an underground storage pond that needed to be emptied after it, too, sprang a leak.

Faced with growing public alarm over the water crisis, the government last week ordered Tepco to stop the influx of groundwater by freezing soil around the reactor buildings, a novel plan that calls for creating a wall of underground ice. The company has also planned to reduce the influx by pumping some of the groundwater into the sea before it reaches the buildings and becomes contaminated.

However, the pumping plan needs the approval of residents and commercial fishermen in areas outside the evacuation zone immediately around the plant, who have been slowly regaining their livelihoods since the meltdowns spewed radiation over northeastern Japan. The company had been offering them reassurances that the water to be dumped contained no radioactive particles that could further contaminate the ocean…..http://www.nytimes.com/2013/06/06/world/asia/tepco-says-water-at-fukushima-is-contaminated.html?_r=0