Three storage tanks, including the one that has leaked water contaminated with radioactive substances, had been disassembled before being moved to the current area at Tokyo Electric Power Co.’s Fukushima No. 1 nuclear power plant, TEPCO said Saturday.
TEPCO said the three tanks were disassembled due to land subsidence in the area where they were initially installed within the premises of the plant, heavily damaged in the March 2011 earthquake and tsunami.
The tanks underwent checks for water leaks before they were transferred to the current area, and it is unclear whether there is a causal connection between the tainted water leaks and the reuse of the tank in question, TEPCO said.
No water leaks have been detected for the other two tanks, but TEPCO will start transferring contaminated water in them to other tanks on Sunday, it said. In June 2011, TEPCO started installing tanks of the same type as the leaky one at the plant.