Tepco admits they concealed the fact of meltdown

On 5/30/2016, a director of Tepco, Anegawa admitted that Tepco concealed the fact of meltdown in 311.

He stated that in the press conference of that day. He says it was obviously meltdown, but Tepco avoided mentioning the term of “meltdown”. He thinks that was concealment.

In Tepco’s internal manual, meltdown is defined to be when over 5% of reactor core is damaged. However Tepco did not mention meltdown even though they knew 55 ~ 70% of the core was damaged by 3/14/2011.

Anegawa commented ordinary engineer would call such a state meltdown even without a manual.


At this moment, third-party inspection committee is investigating Tepco for its arbitrariness.






Français :

Tepco reconnaît avoir censuré les fusions des réacteurs


Le 30 mai 2016 un directeur de Tepco, M. Anegawa, a reconnu que, pendant le 11-3, Tepco a caché le fait des fusions des cœurs des réacteurs.

Il l’a déclaré au cours d’une conférence de presse. Il y déclare qu’il était évident que c’était des fusions mais que Tepco a évité de mentionner le terme. Il pense que c’est de la dissimulation.
Dans le manuel interne de Tepco, la fusion d’un cœur de réacteur est définie comme telle dès que plus de 5% est endommagé. Tepco n’a pas utilisé le terme de “fusion du cœur” même en sachant, vers le 14 mars 2011, que 55 à 70% des cœurs étaient fondus.
M. Anegawa a ajouté que, même sans manuel, tout ingénieur de base qualifierait de fondu un cœur dans un tel état.

En ce moment la commission d’inspection tierce enquête sur l’arbitraire chez Tepco.


About this site

This website updates the latest news about the Fukushima nuclear plant and also archives the past news from 2011. Because it's always updated and added live, articles, categories and the tags are not necessarily fitted in the latest format.
I am the writer of this website. About page remains in 2014. This is because my memory about 311 was clearer than now, 2023, and I think it can have a historical value. Now I'm living in Romania with 3 cats as an independent data scientist.
Actually, nothing has progressed in the plant since 2011. We still don't even know what is going on inside. They must keep cooling the crippled reactors by water, but additionally groundwater keeps flowing into the reactor buildings from the broken parts. This is why highly contaminated water is always produced more than it can circulate. Tepco is planning to officially discharge this water to the Pacific but Tritium is still remaining in it. They dilute this with seawater so that it is legally safe, but scientifically the same amount of radioactive tritium is contained. They say it is safe to discharge, but none of them have drunk it.


June 2016