[Leakage from the empty reservoir] High level of radiation detected in N, S and W side of reservoir No.1

According to Tepco, radiation level of the groundwater spiked around reservoir No.1 on 7/10/2013.

Tepco has completed transferring contaminated water from this reservoir to spare tank, this reservoir was nearly empty.

However, all β nuclides kept being detected from the leakage detector hole water.

(cf, Radiation level increasing in leakage detector hole of “nearly empty” reservoir No.1 [URL])

In order to “dilute” the retained water, Tepco has been re-stocking contaminated water in the reservoir since 6/19/2013.

(cf, Tepco stocking contaminated water in the leaking reservoir No.1 again, Tepco “diluting” [URL 2])

To observe leaked contaminated water spreading widely underground, Tepco made 22 borings.

On 7/10/2013, Tepco detected all β nuclides jumped up (2~5 times much) in 4 borings around this reservoir. Those borings are located in North, South and West side of the reservoir. There is no boring on the East side. It suggests the leaked water is spreading in every direction.

 

Boring A13 (North)
7/10/2013:5.4×10^4 Bq/m3
7/9/2013 : < 2.8×10^4 Bq/m3

Boring A14 (North)
7/10/2013:3.9×10^4 Bq/m3
7/9/2013:< 2.8×10^4Bq/m3

Boring A16 (West)
7/10/2013:1.5×10^5 Bq/m3
7/9/2013:< 2.8×10^4Bq/m3

Boring A19 (South)
7/10/2013:1.1×10^5Bq/m3
7/9/2013:< 2.8×10^4Bq/m3

 

The locations of each boring are below (Pink circled),

[Leakage from the empty reservoir] High level of radiation detected in N, S and W side of reservoir No.1

 

http://www.tepco.co.jp/en/nu/fukushima-np/f1/smp/2013/images/chosui_13071003-e.pdf

http://www.tepco.co.jp/en/nu/fukushima-np/handouts/2013/images/handouts_130502_04-e.pdf

 

 

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Français :

[Fuites d’un réservoir vide] Haute radioactivité autour du réservoir 1, côtés  N, S et O

 

Selon Tepco, le 10 juillet 2013 la radioactivité des eaux souterraines est montée en flèche autour du réservoir n°1.

Tepco a terminé le transvasement dans une citerne de secours des eaux extrêmement radioactives de ce réservoir, il est pratiquement vide. Or, on détecte toujours des β nucléides dans l’eau des  trous de détection.  (cf. La radioactivité augmente dans le trou de détection des fuites du réservoir 1 “pratiquement vide”)
Pour “diluer” les eaux résiduelles, Tepco a remis des eaux radioactives dans ce réservoir depuis le 19 juin 2013. (cf. Tepco recommence son stockage d’eaux extrêmement radioactives dans le réservoir percé n°1, Tepco : ” pour diluer”)

Pour surveiller la diffusion des eaux extrêmement radioactives répandant largement dans le sous-sol, Tepco a creusé 22 forages.
Le 10 juillet 2013, Tepco relève que les β nucléides ont grimpé (2~5 fois plus) dans 4 forages autour de ce réservoir. Ces forages sont situés au nord, au sud et à l’ouest du réservoir. Il n’y a pas de forage à l’est. Ça suggère que l’eau se répand dans toutes les directions.

Forage A13 (Nord)
10 juillet 2013:54 000 Bq/m³
9 juillet 2013   : < 28 000 Bq/m³

Forage A14 (Nord)
10 juillet 2013:39 000 Bq/m³
9 juillet 2013   :< 28 000Bq/m³

Forage A16 (Ouest)
10 juillet 2013:150 000 Bq/m³
9 juillet 2013   :< 28 000 Bq/m³

Forage A19 (Sud)
10 juillet 2013:110 000 Bq/m³
9 juillet 2013   :< 28 000 Bq/m³

La position de chaque forage est donnée ci-dessous (cercles roses) :

[Leakage from the empty reservoir] High level of radiation detected in N, S and W side of reservoir No.1

http://www.tepco.co.jp/en/nu/fukushima-np/f1/smp/2013/images/chosui_13071003-e.pdf
http://www.tepco.co.jp/en/nu/fukushima-np/handouts/2013/images/handouts_130502_04-e.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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