Tepco did not conduct any endurance test of the contaminated water reservoirs in advance

According to the independent journalist Oshidori, Tepco did not conduct any endurance test of the contaminated water reservoirs in advance.

It was stated in their press conference.

Tepco has admitted at least 3 of 7 reservoirs are leaking highly contaminated water to underground. It’s not only that the plutonium concentration is not announced, but also they don’t even announce when to publish the data.

(cf, [Leakage] Plutonium concentration in the leaking reservoirs not announced [URL])

The only endurance test that Tepco conducted was to fill the reservoirs with water to check if the water surface doesn’t significantly decrease.

Unlike ordinary hazardous materials tanks, land subsidence test when the reservoir is full, flaw detection test by using tracer, even a miniature simulation test were not conducted.

Air pressure examination of the pipes was not conducted either.





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Français :

Tepco n’avait pas préalablement testé la résistance des réservoirs des eaux extrêmement radioactives


Selon le journaliste indépendant Oshidori, Tepco n’a pas fait de tests de résistance sur les réservoirs avant de les remplir avec les eaux extrêmement radioactives .

C’est affirmé dans leur conférence de presse.
Tepco a admit que les eaux extrêmement radioactives d’au mois 3 des 7 réservoirs fuient dans le sol. Non seulement leur concentration en plutonium n’est pas communiquée mais en plus ils ne disent même pas quand elle le sera. (cf. [Fuites] La concentration en plutonium des réservoirs qui fuient n’est pas communiquée)

L’unique test de résistance que Tepco avait fait avait été de remplir les réservoirs avec de l’eau et de regarder si le niveau de la surface ne diminuait pas significativement.

Contrairement à ce qui se fait usuellement avec les réservoirs à matières dangereuses, ils n’ont pas fait de test d’affaissement à pleine charge, pas de test de recherche des défauts avec traceur, même pas une simulation sur maquette.

Le contrôle des tuyaux à l’air comprimé n’a pas été fait non plus.


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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.


April 2013