Kyodo: No. 4 Spent Fuel Pool’s cooling system stopped after alarm sounds — Tepco: “Leakage of water with radioactive materials has not been confirmed”

Published: June 30th, 2012 at 3:12 am ET


Cooling system for Fukushima Daiichi No. 4 reactor suspended
Kyodo News
June 30, 2012 at 11:31a JST

The cooling system for a spent fuel pool at the crippled Fukushima Daiichi power plant’s No. 4 reactor automatically suspended operation Saturday morning after an alarm issued a warning at around 6:25 a.m., Tokyo Electric Power Co. said.

The water temperature of the pool was 31 C at the time of the suspension, and leakage of water with radioactive materials has not been confirmed, TEPCO said, adding it is unlikely the temperature will rise rapidly.


See also:

  • [intlink id=”tepco-unable-to-activate-backup-cooling-system-at-no-4-fuel-pool” type=”post”]{{empty}}[/intlink]
  • [intlink id=”kyodo-tepco-try-4-fuel-pool-cooling-system-running-again-sunday-believes-problem” type=”post”]{{empty}}[/intlink]
Published: June 30th, 2012 at 3:12 am ET


Related Posts

  1. Kyodo: Possible Leak at Unit No. 4 — Spent fuel pool cooling system halted after alarm sounds April 12, 2012
  2. Kyodo: Tepco to try and get No. 4 fuel pool cooling system running again Sunday June 30, 2012
  3. Tepco: Unable to activate backup cooling system at No. 4 fuel pool June 30, 2012
  4. Tepco: Cooling system back on at Spent Fuel Pool No. 4 July 1, 2012
  5. TEPCO acknowledges ‘vapor’ is still being seen at Reactors No. 2, 3 and 4 spent fuel pools May 22, 2011

51 comments to Kyodo: No. 4 Spent Fuel Pool’s cooling system stopped after alarm sounds — Tepco: “Leakage of water with radioactive materials has not been confirmed”

  • cardi77u

    these are the posts that are like the start of the end

  • Starheart Starheart

    What makes anyone believe Tempco is likely to tell anyone the truth until it is impossible to stop the mass extinction event from occurring?

  • NoMoreBlackout

    Is it just me or does it seem they are trying to slowly make us think everything is ok but then they give hiccups ? My thinking is this, TEPCO and JAPANESE GOVERNMENT know that it's a dead situation, why hide webcam TEPCO and JAPANESE GOVERNMENT ? Japanese government i have decided that Canadian government will go against you. What you have done to radiate us in Vancouver is incomprehensible, your blackout etc, is disgusting, many countries hopefully will fight against you with us. And yes I will do my job contacting my Energy Minister in BC Canada and the Federal Energy in Canada BECAUSE YOU JAPAN GOVERNMENT ARE DOING NOTHING !!! SO WELCOME TO POLITICS, or should i say protest in BC Canada.

    • iwunder007

      I contacted my local MLA in Saskatchewan (from where the nuclear material might be mined from). I talked with her secretary. The Secretary said that they are bombarded with MAss emails from various groups all day/ week long. She also said that she was unaware of the jetstream taking radiation with it and depositing it over Sask ( see Potr blog). She was receptive and surprised She did however say that the information was important and that she present it to her Boss right away. I followed three times and have yet to receive anything in writing.

      I expected that as I am one small voice in the wilderness
      I propose we phone bomb our leaders and tell them the fear we feel for our self and our kids and start
      With my educating my MLA (whose boss is happy making deals selling uranium overseas).
      Christine Tell
      Secretary: Joette

      And then we call B.C. Other ideas? I want to stand tall if number 4 goes down and say I did all I could.
      I just feel so small….

      It's raining hard in South korea today. Who knows what came down today…

      • many moons

        Canada and the US have lived with acid rain from the orient for decades. Chemicals transported by the jet stream and washed out in the rain…..Why would the radioactive pollution not be included….how could it not be included?????
        It's just basic common sense. How could this be a surprise to anyone?

  • Urban27

    In Chernobyl they needed 600 thousand people to handle the situation – and there was just one reactor..

    • Gaffney

      600,000 liquidators worked in and around Chernobyl between 1987 and 1991. Most of these were cleanup/construction jobs. I can't really find any info on how many workers have been at Fukushima since the accident.

    • Chelsea_

      It is awfully sad to know that even though, in both events, information was withheld, that in the grand scheme of things, the USSR in the 80's did a faster and better job with Chernobyl than modern Japan is with Fukushima. One would think that would be the other way around.

  • NoMoreBlackout

    and they all got medals from what i heard, they did their job.

  • ggbones

    new guy here, yoroshiku… can we expect tepco to send out the "all clear" signal in these situations, assuming they find the source of the problem and fix it? have they historically communicated that kind of stuff?

  • cossack55


  • Starheart Starheart

    Maybe the fourth of July is going to be a really big event this year and the whole world can celebrate the true demise of the U.S. and the northern hemisphere on Earth.

  • nedlifromvermont

    Anything you/we/I do to out the nuclear beast, to unmask his true motives == to reveal the horror unleashed on an unwitting and slumbering general public is better than taking part in the "Silence of the Damned."

    Go 'newsers Go. Don't let the new momentum of the Friday Japan protests go to waste.

    "Hound them to their graves …"

    These nuclearists are not people. They are possessed, crazed zealots — psychopaths, really, who deserve to be tossed into their radioactive cauldrons.

  • BreadAndButter BreadAndButter

    What caused the pump to stop?
    How fast will the temp rise with all the fresh/used fuel in the pool?
    Tepco saying it's "unlikely to rise fast" usually means the opposite.

  • or-well

    So many new names from my time here before!
    (and in cyberspace always room for more)
    To gain understanding, to make contribution
    helping to end this Nuke pollution.

    Please don't burn yourselves out or become overwhelmed
    by the depth, scope and reach of the pro-nuker realm.
    From time-to-time you may need a break
    from Enenews or elsewhere or the effort it takes.

    There once were many I no longer see –
    regular posters in this community
    from many places all over the world
    that, I assume, by the tide of their lives have been swirled
    away from making their presence known
    but have no doubt – the effort has grown
    to get all nukes completely shut down.

    Who knows who's still lurking or who's just arrived
    or who can only on occassion drop by?
    The news rolls on and threads go to archive
    where much of value exists. On a hard-drive?

    So some advice – print, bookmark, file or someway save
    what you find here that helps you fight Nukers depraved.
    Know that what you say helps expand knowledge
    and it's no small thing being here for the discouraged.

    I for one do welcome you all.
    Here is more than opinions and internet chat –
    there's info to avoid stepping in Nuclear scat,
    a depth of resources and people at bat.
    The Enewserai in the battle stand tall!

  • arclight arclight

    "…So some advice – print, bookmark, file or someway save
    what you find here that helps you fight Nukers depraved.
    Know that what you say helps expand knowledge
    and it's no small thing being here for the discouraged…."

    πŸ™‚ good advice

    • or-well

      Hi arclight! How's yer fur?
      I added that part about the discouraged cuz I was and we've seen others come here and say how thankful they are to find folks who "get it".
      And of course there's all the great links that come up and the life expertise of really smart people.
      And lemmings. What a bonus.

  • markww markww

    Pump Out and Now the seal is cracked or leaking????????????

    That is the question ANY ANSWERS??

  • Heart of the Rose Heart of the Rose

    This link contains some historical material about reactor 4.

  • Heart of the Rose Heart of the Rose

    As if… the cooling system was really working.
    It was reported that ..the cooling system consisted of pumping the water that had leaked from the SFP back up into the SFP.

    The spent fuel has been burning for a long time.
    Emissions from can be seen here..May 4 2011.

    I chose June 26 2011..due to clarity.
    Nuck's spot on..

    The cooling system has stopped.
    Does it matter?
    What a sick joke.

    • WindorSolarPlease

      Hi Heart of the Rose

      I agree Nuck was spot on.
      I will not deny, at times there is fog, but there is so much more in the fog that many didn't see.
      Are we done yet?

      • Heart of the Rose Heart of the Rose

        Hi WSP..
        This has been going on for year now…
        It's almost too painful to talk about it.
        Many of us here.. know the our minds and hearts.

        • Jebus Jebus

          And we also know…
          That the only way to even hope, to stop it globally, is for the people that are being irradiated, to pick up the forks, and stick em into nuclear power…

    • lam335 lam335

      Thanks for these video links. I think it's certainly possible that it has been burning off and on since this all started, and I share the belief that, when it does so, neither TEPCO nor the Japanese government would bother to warn their own citizens or the rest of the world.

      But I want to note a couple of things. The continuing need to keep the cooling system going no joke. Presumably, the entire fuel load has not yet burned up, even if some of the fuel has periodically gotten exposed to air and burned. We already know that some of the fuel did burn in the early days of the crisis, and it only subsided when they got it covered with more water (the most massive radiation spikes recorded apparently coincided with the time the that the fuel was uncovered and burning). But not ALL of the fuel burned at that time, and until every last bit of it has either burned up or been removed, the necessity of keeping it cool remains very real.

      I am not a scientist, but I am wondering whether there would be visible flames if nuclear fuel rods burn. Or would it simply vaporize/aerosolize without producing flames? Last summer there was some very disturbing camera footage from nighttime when what appeared to be a massive fire was visible off in the distance in the direction of reactor # 4, though some people thought it was either car headlights or some kind of incinerator off behind the site (I was in the camp that thought they were indeed flames)….

      • Heart of the Rose Heart of the Rose

        After watching this for a year…and seeing all the emissions from 4..I find it very hard to believe there is fuel that is not burning.
        I think it's a giant ruse.

        • lam335 lam335

          Even if it is periodically burning, I'm not sure it could be burning non-stop because we do occasionally see workers scurrying around the buildings. I don't think they could approach it if it were burning constantly.

        • lam335 lam335

          But I share your suspicion that it is likely burning at least some of the time. They certainly wouldn't tell us if it were.

      • lam335 lam335

        The other thought that occurs to me is that, even if the fuel pool has been burning periodically since last year, I don't think the "big one" involving the burning of the entire pool's load has occurred … yet. What few studies have been done to estimate the consequences of such a fire indicate that a massive number of deaths would occur. I'm not sure since I have not read those studies firsthand, but I got the impression that there would be a massive number of deaths even in the very short term (not just cancers years later). I can't imagine they could successfully hide that sort of event for very long (despite their tight control on the media). They they probably can conceal periodic smaller fuel pool fires, since unauthorized people can't go near the site, the government (there and here) has an interest in suppressing such facts, and the media are either willing accomplices or ineffectual dupes.

        I share your concern that when these things do burn–even if/when they do so on a massive scale–they don't/won't tell the world (or their own people) in a timely way that would enable them to make good choices to minimize exposure. When/if the big fire occurs, I bet Nuckelchen will be the first to notice and publicize it (that is, IF they don't take the live camera down). But perhaps there won't be a "big" event; perhaps they'll just continue poisoning the world with smaller, shorter-lived fires that burn up little bits of fuel every few days with scarcely…

  • patb2009

    what does a leak mean when there is 12 feet of radioactive water in the basements of every building in the complex?

    This kind of systems stops on a couple of error conditions. 1) power failure, 2) low level 3) High pressure, 4) zero flow. so whats the issue?

    1) all this stuff is jury rigged, so it's quite possible the power blew out like we saw a few weeks ago,
    or it's possible a plastic tube blew out.

    Gven the rapid demolition being done, either one is possible.

  • BreadAndButter BreadAndButter

    Update: "…TEPCO has been unable to activate a backup cooling system for the pool, officials of the plant operator said later in the day, adding it is unlikely the temperature will rise rapidly.

    TEPCO believes a part of power unit of the system's heat exchanger is causing the problem and the company will try to get the system running again on Sunday."

    *well let's see

  • BreadAndButter BreadAndButter

    Sampling Result of the Accumulated Water in Unit 2 Reactor Building Basement:
    Tepco is glad to announce that "the radioactivity densities of the accumulated water in the triangle corners at Unit 2 Reactor
    Building have been reduced by half compared to the past measurement result in April."

    Too bad there are still 3.5E+4 Bq/cm3 of Cesium-137,
    which equals 40.000 Bq/cm3
    which equals 40 Million Bq/liter.

    *what a travesty.

    • chrisk9

      Measuring radioactivity in some unknown quantity (how many gallons in basement) of water in an open system means nothing. Has the amount of water in the basement increased? As time goes on more of the radioactive solids will sink to the bottom of the floor, so naturally the activity in the water should decrease. Is there a steady inflow of water?

      Even the so called good news they report is just garbage, and really means nothing.

  • MoonlightEmpire MoonlightEmpire

    Any issue with unit 4 is something to pay attention to, but don't forget about the other things going on at the plant…

    It was only 2 days ago that ENE reported that the cooling system of unit 2 had also stopped, and I have heard no update about it since.

    I have a pretty good scope on the various sites reporting, but I haven't seen anything yet about Unit 2 cooling being up and running again. Anyone have info yet?

    Side note, best to all who participated in the demonstrations in Japan and elsewhere (I know of Chicago so far).

    Side note, I'm in New Jersey and have a geiger counter. I love to work in the garden. The surface of the soil in my little 2.5 acres is always slightly over 0.2 microSv/hour. The highest I've found is by my gutters at 0.3 microSv/hour. The dehumidifyer in my basement is 1.2 microSv/hour when the water bucket is full. I cannot say for sure, however, what the compsition of the radioactive material is (could be radon).

    Thank you to all who post, and admin for giving us a place to meet. Welcome to the new faces I see recently.

    PS. Where is Snork, Grampybone, AiGeezer, Bmurr and others? Haven't seen you guys in a while, but always valued your opinions.

    • or-well

      @MoonlightEmpire, I too wonder about the "missing".
      So many names have rolled thru here!
      What we confront, its immensity and implications, is difficult.
      Some have said they must step away periodically.
      Some may feel they said their piece and more is repetition.
      Some may be too busy, either in or out of this struggle.
      But they were here, questioning, challenging, teaching, learning.
      Whatever they gained, they have with them.
      What they shared is in the archive and Forums.
      Many may still use Enenews as a resource.

      I try and wrap my head around this.
      Newcomers should be welcomed and encouraged (unless shills of course!)
      Some may have been on the road of anti-nuclear activism a long time, some only newly aware of the issues, or many in between.
      The news, while not widespread, is here, and elsewhere, but there are few places where so many of like mind are concentrated.
      So many are uninformed that for those who are or wish to be, these forums may be the only place some can express their concerns, or find community and the strength to stay in the fight to become aware and make others aware.

      There are insightful, quirky, passionate, unique turns of mind and phrase and sense of humor that I miss.

  • BreadAndButter BreadAndButter

    Cesium in children's urine samples

    Kyodo: "A small amount of radioactive cesium was found in the urine samples from 141 infants and young children living in Fukushima Prefecture, where the crippled nuclear power plant is located, among 2,022 of those surveyed, a Japanese research group said Saturday.

    Three urine samples contained more than 10 becquerels of cesium per kilogram, including a case with 17.5 becquerels. Ten becquerels or less of cesium was found in the samples of the other 138, the Yokohama-based Isotope Research Institute said.

    The urine samples also contained about an average 64 becquerels of radioactive potassium."

  • Bobby1

    Official Coverup Obscures The Collapse Of Reactor 4

    "… Starting in the first hours of New Year's Day of this year, 2012, the loose soil under Fukushima underwent liquefaction during a series of earthquakes. The Fukushima 1 plant was completely evacuated in secret, as police barricades were set up on incoming roads and military helicopters sped in to evacuate remaining workers and engineers. Nighttime helicopter flights were heard in the darkness over Minami-Soma town, indicating that fuel rods were being airlifted into nearby river estuaries.

    During the solemn New Year's holiday, when Japanese families rest at home, few residents went outdoors. Those who did venture out with dosimeters reported a major spike in radioactivity across northeast Japan. The suddenly higher readings across the Northern Hemisphere indicated that the piping for the No.4 core reactor and containment chamber had ruptured, probably when a reactor fell into a sinkhole…

    From June 17 to June 22, another series of 5+ quakes apparently snapped the heat-weakened steel beams that supported the spent-fuel pool, sending more than 1,500 fuel rods tumbling down over the twisted-metal wreckage of Reactor 4. Thus, the nuclear-emergency minister, Goshi Hosono, must have rushed out a secret order to tear down the heat-warped concrete structure…"

    • Thank you Bobby for posting.

      The analysis makes sense given our observations on the webcam.

      My question is could they really carry by helicopter hot fuel rods?

      What does this mean for us all?


      • Bobby1

        It would explain why they can't get the cooling system or the backup system working.

        If the pool has already collapsed.

  • razzz razzz

    Bobby1: There is nothing worse than half truths or incomplete knowledge.

    I suggest you wait until rumors are substantiated before posting some guys feelings on the situation.

    At this point in time, Unit 4 is not releasing any radioactivity, Units 1,2 & 3 are.

  • chrisk9

    One more time. Unit #4 has not collapsed. You would see people running off site, and probably dead people on the ground. Tokyo would be in complete panic. There would be smoke, and probably fire coming from the pile of fuel on the ground. The US would immediately evacuate all US citizens from the main island. It would be the greatest ecological disaster in the history of mankind, and you think it could happen in secret?

    BTW no helicopters could move fuel, the pilot and crew would die as they approached the pile of fuel, dose rates inside the helicopter would be greater than 100 sieverts an hour.

  • Heart of the Rose Heart of the Rose

    The structure itself..has not collapsed…there was just a couple of fires..and explosions..large enough to blow the top off and a hole in one of the wall..causing buckling and leaning of the building.and plumes rising for a year.

    March 19 2011…40 Rem/per hour between 3 and 4.

    Hidden in plain sight.

  • papacares papacares

    friends something is not adding up, has anyone seen the video from June 26,2012 of demolition at reactor 4? what the?

    • Dr. Anne Lee Tomlinson Maziar anne

      TY, papacares

    • chrisk9

      Fake video. Why do people do this? The so called plasma cutter is taking down concrete pillars on the sides of a building that are only made of steel. If you look at the speed of people moving around in the foreground and the speed of the "plasma cutter" then the concrete pillars are coming down within minutes.

      And the narrator sounds like he has been in the backseat of Cheech and Chongs car. That's fine unless your seriously messing with people, and scaring them.

      • What do you mean? (by not adding up)…

        Also the video is in x10 – x 20 speed (give or take)…

        • chrisk9

          Look at the speed people are walking in the foreground and the speed they are demolishing the building. I agree it is 10-20 times speed, but that certainly is not enough time to demolish the plant. They took off most of the structure in a 5 minute or so video, multiply that by 10-20 and the maximum time would be less than two hours. Can't be done.

          I can pull a Romney and bet $10,000 that it is still there.