Tepco doesn’t estimate how much more groundwater would flow into the plant by stopping it flowing to the sea

Having measured high level of radioactive material from groundwater and seawater, Tepco is planning to build underground wall beside the seaside.

(cf, Tepco to “improve” the ground to stop groundwater contamination spreading by crushing an observation hole [URL])

At this moment, it is estimated 450 tones of groundwater flows to the sea everyday.

(cf, Former Fukushima worker “450 tones of groundwater flows to the sea everyday” [URL 2])

If they stop it from flowing to the sea by the underground wall, the same volume of groundwater would possible come back to the plant.

Now 400 tones of groundwater flows to the basement of the plant. If this additional 450 tones of groundwater flows into the basement of the plant, it would overwhelm the water purifying capacity and storage capacity. Also, the increased water pressure may damage the bottom and the wall of the buildings.

(cf, Former Fukushima worker, “Groundwater stopped by underground wall may reverse to damage the reactor buildings” [URL 3])

In the press conference of 7/12/2013, Tepco stated they don’t have the estimate of how much more groundwater would flow into the basement of the plant.

They commented though they don’t know the potential effect to the plant, stopping groundwater from flowing to the sea has the higher priority.






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Français :

Tepco n’a pas estimé le supplément en eaux souterraines inondant la centrale s’ils les bloquent vers la mer


Ayant relevé une radioactivité très forte dans les eaux souterraines et marines, Tepco prévoie de construire un mur souterrain près de la mer. (cf. Tepco va “renforcer” le sol pour arrêter la contamination souterraine en écrasant un trou d’observation)

En ce moment, on estime que 450 tonnes d’eaux souterraines s’en vont à la mer tous les jours. (cf. L’ancien de Fukushima : “450 tonnes d’eaux souterraines s’écoulent tous les jours dans la mer”)
S’ils les bloquent avec ce mur souterrain, le même volume quotidien peut refluer dans la centrale.
Actuellement, 400 tonnes d’eaux souterraines inondent les fondations de la centrale. Si ces 450 tonnes d’eaux souterraines additionnelles s’écoulent dans les fondations, ça va dépasser les capacités du système de filtration et de stockage. De plus, l’augmentation de la pression de l’eau peut endommager la base et les murs des bâtiments. (cf. L’ancien de Fukushima : “Les eaux souterraines bloquées par le mur souterrain pourraient refluer en endommageant les bâtiments des réacteurs”)

Durant la conférence de presse du 12 juillet 2013, Tepco a affirmé qu’ils n’ont pas d’estimation de la quantité d’eaux souterraines supplémentaires allant inonder les fondations de la centrale.
Ils ont déclaré que bien qu’ils ne connaissent pas les effets potentiels sur la centrale, arrêter l’écoulement des eaux souterraines dans la mer a une priorité plus grande. (1:46~)


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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.