[From where?] Unverified substance found accumulated 1.3m in a manhole of reactor2 trench

According to Tepco, they found unknown substance accumulated in a manhole of a trench on 7/17/2013.

Having measured high level of radiation in groundwater and seawater, Tepco is investigating the potential sources of contamination.

The manhole is in the power source cable trench of reactor2. Highly radioactive water is retained in it, Tepco assumes the water is leaking to the underground.

The atmospheric dose was 31 mSv/h on the manhole cover.

The top of the unverified accumulated substance was 1.34 m higher than the bottom of trench. Tepco assumes it is the grout that Tepco tried to close the trench back in 2011.

The state of the rest part of the trench is not investigated yet.

 

[From where?] Unverified substance found accumulated 1.3m in a manhole of reactor2 trench

 

2 [From where?] Unverified substance found accumulated 1.3m in a manhole of reactor2 trench

 

http://www.tepco.co.jp/nu/fukushima-np/handouts/2013/images/handouts_130719_06-j.pdf

 

 

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Français :

[D’où ça vient ?] Une substance indéterminée accumulée sur 1,30 m sous un regard d’une tranchée du réacteur 2

 

Selon Tepco, le 17 juillet 2013 ils ont trouvé une substance inconnue accumulée dans un regard de la tranchée.

Après avoir constaté une radioactivité extrême dans les eaux souterraines et marines, Tepco recherche les sources probables de cette contamination.
Ce regard est dans la tranchée du câble électrique du réacteur 2.
Il y a des eaux extrêmement radioactives dedans; Tepco suppose que cette eau s’infiltre dans le sous-sol.
La dose ambiante est de 31 mSv/h sur le couvercle du regard.
Le haut de cette substance inconnue accumulée est à 1,34 m au-dessus du fond de la tranchée. Tepco pense que c’est du ciment que Tepco avait laissé en 2011 lorsqu’ils avaient essayé d’obturer la tranchée.
Le reste de la tranchée n’a pas encore été exploré.

[From where?] Unverified substance found accumulated 1.3m in a manhole of reactor2 trench
2 [From where?] Unverified substance found accumulated 1.3m in a manhole of reactor2 trench

http://www.tepco.co.jp/nu/fukushima-np/handouts/2013/images/handouts_130719_06-j.pdf

Merci de votre soutien. Les virements mensuels sont aussi très utiles !

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.

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