At TEPCO's Fukushima Daiichi Nuclear Power Station, the amount of waste generated during decommissioning work at a temporary decommissioning site installed outdoors has increased rapidly, and the Nuclear Regulatory Commission has set up a management system, saying that there are places where management is inappropriate. I asked for a review.
The radioactive waste generated from the decommissioning of the Fukushima Daiichi Nuclear Power Plant is about 480,000 cubic meters as of March, and most of it is temporarily stored outdoors in a fixed place, but in principle, debris that cannot be carried in immediately is used. It is placed in a temporary decommissioning site for up to one year.
The amount of waste temporarily stored in this collection site increased rapidly from about 7,000 cubic meters in January last year to 60,000 cubic meters as of July, and there are places where management is inappropriate, such as temporary storage exceeding one year. I understand.
Regarding the cause of the rapid increase, TEPCO explained that the acceptance was temporarily suspended due to the reloading of containers in the temporary storage area, and that radioactive materials leaked from the containers and inspection work was carried out.
The Nuclear Regulatory Commission has requested a review of the management system, saying that there is a risk that proper management may not be carried out at the temporary depot, such as the number of patrols is small.
TEPCO says, "I want to review the temporary storage of waste and manage it appropriately."