[Under ground contamination] Tritium detected in 2 of 4 seaside observation holes, “max was 3,800,000 Bq/m3”

According to Tepco, radioactive water, Tritium was detected from 2 of 4 seaside observation holes.

Having highly contaminated water leaking from 3 reservoirs, Tepco is checking ground water by making wells called observation holes between the reservoirs and the sea. If they detect radiation from those wells, it means the leaking water is penetrating underground.

Tritium was detected from 2 of 4 observation holes. The samples were taken from 4/23 to 4/24/2013. The highest reading was 3,800,000 Bq/m3. This is the same level as outside of the leaking reservoir No.1

(cf, [Out of control] Tritium measured outside of 4 from5 reservoirs, max reading 1.9 times much as 1 week ago [URL])

This sample was taken in the seaside of reservoir No.6. The other sample was taken in the seaside of reservoir No.4.

Though Tepco hasn’t officially admitted these reservoirs (No.4 & 6) are leaking yet, Tritium is detected also from the outside of those reservoirs.

If it’s the background level, it means the plant ground has been significantly contaminated since before the major leakage.

 

[Under ground contamination] Tritium detected 2 of 4 seaside observation holes, "highest reading was 3,800,000 Bq/m3"

 

↓ Location of the seaside observation holes (Red circled)

2 [Under ground contamination] Tritium detected 2 of 4 seaside observation holes, "highest reading was 3,800,000 Bq/m3"

 

 

http://www.tepco.co.jp/en/nu/fukushima-np/f1/smp/2013/images/chosui_13050202-e.pdf

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

 

 

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Français :

[Contamination souterraine] Du tritium dans 2 des 4 trous d’observation côté mer : record à 3 800 000 Bq/m³

 

Selon Tepco, l’eau radioactive en tritium a été détectée dans 2 des 4 trous d’observation côté mer.

Ayant de l’eau extrêmement radioactive qui fuit de 3 réservoirs, Tepco contrôle l’eau souterraine par des puits appelés trous d’observation et creusés entre les réservoirs et la mer. S’ils détectent de la radioactivité dans ces puits, c’est que l’eau des fuites entre dans le sous-sol.
Du tritium a été détecté dans 2 des 4 trous d’observation. L’échantillonnage a été fait entre le 23 et le 24 avril 2013. Le record est à 3 800 000 Bq/m³. C’est au même niveau qu’à côté du réservoir N°1 percé  (cf. [Hors contrôle] Du tritium relevé en-dehors de 4 des 5 réservoirs, record de radioactivité doublé en une semaine)
Cet échantillon a été pris côté mer du réservoir N°6. L’autre échantillon l’a été côté mer du N°4.
Bien que Tepco n’ait toujours pas officiellement reconnu que ces réservoirs (N°4 & 6) fuient en ce moment, on trouve aussi du tritium à l’extérieur de ces réservoirs.
Si c’est le niveau du bruit de font, ça signifie que le sous-sol de la centrale a été gravement contaminé bien avant ces fuites majeures.

[Contamination souterraine] Du tritium dans 2 des 4 trous d'observation côté mer : record à 3 800 000 Bq/m³

↓ Position des trous d’observation côté mer (cercles rouges)

2 [Contamination souterraine] Du tritium dans 2 des 4 trous d'observation côté mer : record à 3 800 000 Bq/m³

http://www.tepco.co.jp/en/nu/fukushima-np/f1/smp/2013/images/chosui_13050202-e.pdf
http://www.tepco.co.jp/en/nu/fukushima-np/handouts/2013/images/handouts_130502_04-e.pdf

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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.

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