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Safety problems with Holtec’s dry canisters for nuclear wastes

Dr. Kris Singh , CEO, Holtec International, On (Not) Repairing Dry Canisters
   Dr. Kris Singh is the CEO of Holtec International He is speaking here on the subject of repairing dry canisters — or not. Event: Southern California Edison’s Community Engagement Panel Date: Oct. 14, 2014 Location: San Juan Capistrano, California –
– Dr. Singh states: “…It is not practical to repair a canister if it were damaged… … if that canister were to develop a leak, let’s be realistic; you have to find it, that crack, where it might be, and then find the means to repair it. You will have, in the face of millions of curies of radioactivity coming out of canister; we think it’s not a path forward… …you can easily isolate that canister in a cask that keeps it cool and basically you have provided the next confinement boundary, you’re not relying on the canister. So that is the practical way to deal with it and that’s the way we advocate for our clients.* …A canister that develops a microscopic crack (all it takes is a microscopic crack to get the release), to precisely locate it… And then if you try to repair it (remotely by welding)…the problem with that is you create a rough surface which becomes a new creation site for corrosion down the road. ASME Sec 3. Class 1 has some very significant requirements for making repairs of Class 1 structures like the canisters, so I, as a pragmatic technical solution, I don’t advocate repairing the canister.” Additional remarks by Dr. Singh and others from that meeting:
*NOTE: Problems with Dr. Singh’s solution for putting cracked canisters inside [transport] casks. · There are currently (Dec. 2014) no NRC approved Holtec specifications that address Dr. Singh’s solution of using the “Russian doll” approach of putting a cracked canister inside a [transport] cask.
· The current NRC requirements for transport casks require the interior canister to be intact for transport. The NRC requirement provides some level of redundancy in case the outer cask fails. Does this mean this leaking canister can never safely be moved? Who will allow this to be transported through their communities? What is the state of the fuel inside a cracked canister? · What is the seismic rating of a cracked canister – even if it has not yet cracked all the way through?
The NRC has no rating, but plans to allow up to a 75% crack. Currently, there is no technology that can inspect for corrosion or cracks. The NRC is giving the industry 5 years to develop it. ·
What is the cost for the transport casks that will be needed for storage? Will they be on-site? Where is this addressed? Transport casks are intended to be reusable. How and where will they be stored and secured on-site? · How will the leaking canister be handled by the Department of Energy at the receiving end of the transport?
The DOE currently requires fuel to be retrievable from the canister. A better solution would be to use casks that are not susceptible to cracks, that can be inspected and repaired and that have early warning monitoring systems that alert us before radiation leaks into the environment. For more information, go to Video by: Ace Hoffman

November 25, 2019 - Posted by | safety, USA, wastes


  1. […] problems with Holtec’s dry canisters for nuclear wastes. A Huge Tax Break Went to a Politically Connected Holtec International (Nuclear) […]

    Pingback by Climate/nuclear news to 27 November « Antinuclear | November 27, 2019 | Reply

  2. I think that this transcript was the one I typed up (or based on it), which was incredibly time-consuming, especially since Singh’s English is so horrible. Yet, no one gave me credit, which is annoying. Of course, since my blog is anonymous I don’t get credit anyway, but the blog doesn’t either.

    Comment by miningawareness | November 27, 2019 | Reply

    • It’s getting so that we completely unpaid, and pretty much unrecognised, workers, are the most reliable and credible for nuclear information.
      There are genuine journalists and reporters, but they often leave out important bits.

      Comment by Christina MacPherson | November 28, 2019 | Reply

      • It’s been that way a long time. It’s just you are the only one who remains steadfast and faithful through thick and thin! So, thank you and hats off to you! If Australia stays nuclear free, it will be because of you! The person who didn’t credit me was also a volunteer, but maybe didn’t notice that I had done the transcription, or know how time-consuming transcriptions are. I’m back nit-picking through a Sellafield document, which reminds me why I mostly gave up. Trump is like the nuclear industry – I would have thought he’d have been impeached in May 2017. On the other hand, I remain hopeful that Kris Singh of Holtec will finally tumble due to corruption. However, he will be like the Gupta brothers of South Africa and disappear with all of the money. I could do multiple posts on corruption much more quickly than slogging through something like the Sellafield document. Days are too short. Life is short.

        Comment by miningawareness | November 28, 2019

      • Thank you. But I am in awe of the work that you do.
        If Australia stays nuclear-free, I assure you, it will be because of the work of many – especially those out in the field protesting, and making a nuisance of themselves to the authorities. Way ahead, foremost in this, are the indigenous people. They have no money, and many, no advanced education, but they know that they belong to the land, and that the land and water are sacred. It’s the Australian Aborigines who have fought back for so long, and so successfully.

        Comment by Christina MacPherson | November 28, 2019

  3. Thank you Christina! I believe your blog plays the role of churches during the Civil Rights movement. It offers education, community, continuity, and defines nuclear as wrong and subject to change. It is also a library. The Civil Rights movement also had direct action protestors. A good blog today can play the role of education and institution for social change, with hard work as the main “resource”. Sorry so late to respond. I wanted to address the Sellafield issue.

    Comment by miningawareness | December 1, 2019 | Reply

    • Thank you,m miningawareness, for that huge compliment. A most encouraging thought!

      Comment by Christina MacPherson | December 1, 2019 | Reply

      • I think I forgot to say that with all of that you bring the most important thing: HOPE!

        Comment by miningawareness | December 2, 2019

      • Well, thanks again. I appreciate that. There are so many good people trying to put things right.

        Comment by Christina MacPherson | December 2, 2019

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