TEPCO continues tank investigation

The operator of the damaged Fukushima Daiichi nuclear power plant is investigating the leakage of radioactive water from a holding tank.

Officials at Tokyo Electric Power Company estimate more than 300 tons of highly radioactive water leaked from a tank near the Number 4 reactor this month. Some of the water is believed to have drained into the ocean through a ditch.

TEPCO officials said on Saturday the tank sank 20 centimeters into the ground in a test carried out in July, 2011.

They said the sinking may have deformed or damaged the tank. They said they are investigating whether this has anything to do with the leak.
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