Radiation level spiked up 30× in groundwater / Tepco “Still no leakage to the sea”

Photo : The leakage point of highly contaminated water. (3/10/2015)

 

Following up this article.. 750 t of contaminated rainwater leaked to underground / “Bubble came up from the ground” [URL]

 

On 3/11/2015, Tepco announced the radiation level spiked up 30 times in near groundwater.

Having 750 t of highly contaminated water absorbed by the ground, Tepco has been monitoring the contamination levels of the groundwater around the leakage point.

As a result, they detected 11,000,000 Bq/m3 of All β nuclides (including Strontium-90) from a boring well on 3/11/2015. It was 370,000 Bq/m3 on 3/9/2015.

Tepco doesn’t announce the distance from the leaking point and the boring well. However the boring well is situated in the direction of the sea, which strongly suggests the absorbed contaminated water is flowing toward the sea.

Tepco is commenting it hasn’t been confirmed that the contaminated water reached the sea and they will stop monitoring in a week.

 

Strontium-90 density and other nuclide’s density has not been reported either.

 

For the reason of why the absorbed water is highly contaminated, they state it might be affected by the past major leakage in March of 2012.

The detailed analysis result and the photos of the potential contamination source are not published for some reason.

 

↓ The location where the bubble came up from the ground.

OLYMPUS DIGITAL CAMERA

 

http://photo.tepco.co.jp/date/2015/201503-j/150311-01j.html

http://www.tepco.co.jp/nu/fukushima-np/handouts/2015/images/handouts_150312_04-j.pdf

http://www.tepco.co.jp/cc/press/2015/1248638_6818.html

http://www.tepco.co.jp/cc/press/2015/1248671_6818.html

 

 

_____

Français :

Radioactivité x 30 dans les eaux souterraines / Tepco : “Toujours pas de fuite en mer”

 

Photo : L’endroit de la fuite d’eau extrêmement radioiactive . (10 mars 2015)

 

Article lié : 750 T d’eau de pluie radioactive a fuit en sous-sol / “Des bulles ont jailli du sol”

Le 11 mars 2015, Tepco annonce que la radioactivité a été multipliée par 30 dans les proches eaux souterraines.

Suite à la fuite des 750 T d’eaux extrêmement radioactives absorbées dans le sol, Tepco a surveillé les niveaux de radioactivité des eaux souterraines autour de l’endroit de la fuite.
En conséquence, le 11 mars 2015 ils ont relevé 11 000 000 (11 millions de) Bq/m³ de radioactivité β (dont le strontium 90) à partir d’un forage. Le 9 mars 2015, elle était à 370 000 Bq/m³.

Tepco ne donne pas la distance entre l’endroit de la fuite et le forage. Ce dernier est néanmoins situé en direction de la mer, ce qui laisse fortement penser que les eaux absorbées s’écoulent à la mer.
Tepco déclare qu’il n’est pas confirmé que les eaux extrêmement radioactives ont atteint la mer et ils annoncent aussi qu’ils cesseront cette surveillance dans une semaine.
La radioactivité en strontium 90 et celle des autres nucléides ne sont pas non plus communiquées.

Pour expliquer pourquoi les eaux infiltrées sont extrêmement radioactives, ils affirment que c’est sans doute du à la fuite majeure de mars 2012.

Les résultats des analyses détaillées et les photos de la source probable de la fuite ne sont pas publiées également.

↓ L’endroit où le sol s’était mis à mousser.

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http://photo.tepco.co.jp/date/2015/201503-j/150311-01j.html
http://www.tepco.co.jp/nu/fukushima-np/handouts/2015/images/handouts_150312_04-j.pdf
http://www.tepco.co.jp/cc/press/2015/1248638_6818.html
http://www.tepco.co.jp/cc/press/2015/1248671_6818.html

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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