Tokyo Electric Power Company Holdings aims to begin dismantling tanks used for storing treated wastewater in 2025. The tanks are now empty following water discharges into the Pacific since August last year.
Tepco released a total of 62,400 metric tons of treated water from its meltdown-stricken Fukushima No. 1 nuclear power plant in eight rounds of discharges over the past year.
Investigations by the government and Tepco into the surrounding sea areas have shown that the concentration of the radioactive substance tritium, contained in the treated water, is far below the safety limit. Last month, the International Atomic Energy Agency published a report that the water releases meet international safety standards.