It was 60cm in reactor2, but it is worse in reactor1.
Japan nuclear energy safety organization analyzed the water level from the connection of the amount of nitrogen injected to PCV and the air pressure of PCV.
The result is that the water level is only 40cm from the bottom of the container vessel though they inject 6 tones of water per hour.
The pipes to connect PCV and torus room got holes of several cm diameter. All the water injected leak from the holes and flow into the basement floor of the reactor building. It flows to the basement floor of the turbin building beside the reactor building through the pipes and cables.
The thickness of PCV is 30mm, but the pipes to torus room are only 7.5mm thick.
Tepco used to assume the water level was 1.8m but it turned out to be wrong as always.
Tepco plans endoscope operation to know the temperature of inside of the PCV by the end of this year.
１号機「水位４０センチ」 格納容器下部に穴 漏水か
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.