Reactor3 coolant water possibly leaking since before explosion of 311

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Following up this article.. Reactor3 coolant water leakage → 1/3 of injected water was leaking / Tepco doesn’t know when it started [URL]


The leaking part was possibly damaged before reactor3 exploded in 311, NRA committee commented in the working group of 1/24/2014.


Currently at least nearly 1/3 of injected coolant water is leaking out to the reactor building. The leaking part is assumed to be a joint part of the pipes and PCV (Primary Containment Vessel). NRA committee stated the joint part is a tube of 1m diameter, but only 2mm thickness. In 311, PCV had double as the design pressure. It is rational to think the joint part was damaged at that time.

If this assumption was correct, reactor3 has been losing approx. 1/3 of coolant water since 311.



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Le liquide de refroidissement du réacteur 3 fuit sans doute depuis avant les explosions de mars 2011
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Article lié : Fuite du liquide de refroidissement du réacteur 3 → 1/3 de ce qui était injecté / Tepco ne sais pas depuis quand

La commission de la NRA a déclaré au cours de la réunion de travail du 24 janvier 2014  que l’endroit qui fuit était sans doute abîmé antérieurement à l’explosion du réacteur 3 de mars 2011.

Actuellement environ 1/3 du liquide de refroidissement injecté fuit en dehors du bâtiment du réacteur. L’endroit de la fuite est supposé être à la jonction entre les tuyaux et l’enceinte de confinement primaire (PCV, Primary Containment Vessel). La commission de la NRA a affirmé que cette jonction est un tube de 1 m de diamètre mais de seulement 2 mm d’épaisseur. En mars 2011, la PCV était au double de la pression prévue par conception. Il est logique de penser que cette jonction ait été endommagée à ce moment-là.
Si cette hypothèse est la bonne, alors le réacteur 3 perd 1/3 environ de son liquide de refroidissement depuis mars 2011.
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  1. That is not the only leak being revealed, the truth is also being slowly leaked out by TEPCO.

  2. Over pressure, high temperature, earthquake and aftershocks, together with fluctuating loss of fluid and in all likelihood a LOT of internally produced vibrations and shocks.

    Yep, LEAKING is a high probability event, under the conditions present; whatever the hydrostatic design margin. Might have even had some ‘water hammer’ resonance action going; in which case, pipe failure was a CERTAINTY.


    Bill Duff

  3. Ten Thousand Tons

    TEPCO has previously disclosed 1,000 Tons Per Day groundwater flow at the Fukushima Daiichi Nuclear Power Plant. They have indicated that 300 – 600 tons of contaminated groundwater flows into the Pacific Ocean per day.

    However, I suspect that these groundwater flow rates were based upon a faulty assumption of an impermeable layer, of approximate depth of 20 meters. Recently, TEPCO released subsurface hydrology maps, which showed that the impermeable layer was long-known to be a myth.

    Thus, the thickness of the ACTIVELY FLOWING groundwater formation is at least an order of magnitude greater than previously reported. So PERHAPS the effective flow rate of water is 10 Thousand Tons per day, or 100 Thousand Tons per day. Similarly, the potentially contaminated water depth is MUCH greater than 20 Meters.

    And IF Japan and Team Nuke presently know the corium locations, they have NOT shared that information with the world.


    Bill Duff

  4. Subterranean Corium

    The FDU-3 explosion exhibited: orange flame, black smoke, supersonic detonation, vaporized fuel, scattered fuel as well as induced Gamma Radiation in structural steel and concrete. Each and every one of these signs and symptoms COMPLETELY PRECLUDE an explosion cause of hydrogen and/or steam. That leaves us with a prompt criticality, which is also known as an Atomic Explosion.

    Some significant percentage of the FDU-3 MOX fuel was scattered over a THOUSAND square miles of Honshu Island and the adjacent Pacific Ocean. Perhaps some MOX fuel remains in what remains of the reactor, metal shell and design-defective General Electric Mark-1 concrete ‘containment’ approximation. Recently, ENENews displayed a schematic from the Swiss Embassy, which appears to show a corium slug. This corium slug, depicted in RED, is located below the FDU-3 Nuclear Power Plant, perhaps at a depth on the order of 100 meters.

    A nuclear explosion occurring within a cylindrical reactor, within a metal flask, within a concrete cylinder would direct MOST of the blast vertically, both UP and DOWN. Some Mark-1 containment systems had 8 feet (3 Meter) thick; while others were 16 feet (5 meters) thick. The disintegrating reactor, metal shell and concrete containment MAY have created a bomb crater which extends a few meters below the FDU-3 Plant foundation. This could have allowed a significant portion of the MOX corium to have directly entered the water table below BEFORE having been alloyed into a less harmful, less concentrated form.


    Bill Duff

  5. Quite a collection of Alarmist & Compromised Liars, IMHO

    Oh and what a crock of shit it is …

    ‘Climate Scientists, (whatever that may imply)’ Kenneth Caldeira of the Carnegie Institution, Kerry Emanuel at the Massachusetts Institute of Technology, James E. Hansen of Columbia University and Tom Wigley of the National Center for Atmospheric Research and the University of Adelaide

    ‘To Those Influencing Environmental Policy But Opposed to Nuclear Power’

    Are joined by …

    Seasoned Team Nuke physicists, (which speaks volumes of them)’Andrew C. Kadak – Former President of the American Nuclear Society and Member of the US Nuclear Waste Technology Review Board, Richard A. Meserve – President of the Carnegie Institution for Science and a former Chairman of the US Nuclear Regulatory Commission, Neil E. Todreas – Korea Electric Power Company Professor (emeritus) and a former Chairman of the Massachusetts Institute of Technology Department of Nuclear Science and Engineering, and Richard Wilson – Mallinckrodt Research Professor of Physics (emeritus) and a former Chairman of the Harvard University Department of Physics.

    ‘Four Seasoned Nuclear Scientists Endorse Nuclear Energy Push by Four Climate Scientists’

    Actually, I personally prefer that science to proceed from candor.

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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.


January 2014