Fukushima fishing cooperative allowed Tepco to discharge the contaminated groundwater to the sea

Following up this article.. Tepco to pump up highly contaminated groundwater for potential discharge today / Drainage plan submitted to NRA [URL]


On 8/11/2015, Fukushima fishing cooperative officially admitted Tepco to discharge the highly contaminated groundwater to the sea.

Tepco is going to start the discharge this September.

Fukushima fishing cooperative had been rejecting this “sub-drain” plan. It is not clear what made them change their decision.

The groundwater to be discharged is pumped up beside the reactor buildings. From Tepco’s data of 8/11/2015, Cs-134/137 density of the pumped water was 238,000 Bq/m3. Tepco states they’ll “filter” the pumped water before discharging but their nuclide analysis data covers only Cesium-134/137 and Iodine-131. The density of other nuclides such as Sr-90 is not announced.







Français :

La coopérative de pêche de Fukushima autorise Tepco à déverser ses eaux radioactives en mer


Article lié : Tepco va pomper des eaux souterraines extrêmement radioactives pour les déverser en mer / plan d’évacuation soumis à la NRA

Le 11 août 2015, la coopérative de pêche de Fukushima autorise officiellement Tepco à déverser les eaux extrêmement radioactives en mer.

Tepco va commencer à les déverser dès septembre.
La coopérative de pêche de Fukushima avait toujours refusé ce plan de “sous-évacuation”. On ne sait pas ce qui les a fait changer d’avis.

Les eaux souterraines qui vont être déversées sont pompées à proximité des bâtiments des réacteurs. Selon les données de Tepco au 11 août 2015, la radioactivité en césium 134/137 de ces eaux est de 238 000 Bq/m³. Tepco affirme qu’ils vont les “filtrer” avant de les déverser mais les données de leurs analyse ne portent que sur le césium 134/137 et l’iode 31. La radioactivité des autres nucléides comme le strontium 90 n’est pas communiquée.


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.


August 2015