[Contaminated underground water]Reactor4 had 6.4 times much H-3 as reactor2 in its sub-drain
On 11/27/2012, Tepco released the report of “Nuclides Analysis Results of the Sub-drain”.
According to this report, 6.2E+6 Bq/m3 of H-3 (radioactive water) was measured from sub-drain of reactor4, which is 6.4 times much as in reactor2 (9.7E+5 Bq/m3).
The sampling date was 6/11/2012, Tepco has not been reporting it for 5 months.
Sub-drain is the shaft located around the reactor buildings to reduce the buoyancy of underground water to the reactor buildings and stop underground water flowing into the buildings. It’s designed to let underground water in easily. H-3 measured therefore is presumed to be from underground water.
Le 27 novembre 2012, Tepco publie le rapport “Résultats de l’analyse des nucléides de l’évacuation souterraine”.
Selon ce rapport, 6 200 000 Bq/m³ de tritium (H³, eau radioactive) ont été relevés dans une canalisation souterraine du réacteur 4, ce qui est 6,4 fois plus que pour le réacteur 2 (970 000 Bq/m³).
L’échantillonnage date du 11 juin 2012, Tepco n’en a rien dit pendant 5 mois.
L’évacuation souterraine est conduit situé autour des bâtiments des réacteurs pour réduire la pression des eaux souterraines sur leurs fondations et d’empêcher ces eaux d’inonder les bâtiments. Il est conçu pour recevoir les eaux souterraines facilement. Donc, le tritium (H³) relevé est supposé provenir de ces eaux souterraines.
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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.