March 14th, 2011 – I’m a little concerned about the spent fuel storage pools for Units 1 and 3

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From: i-armer, Mitl•elW. [[email protected]]
Sent: Monday, March 14, 2011 9:52 AM
To: Tinkler, Charles
Cc: Basu, Sudhamay; Gavrilas, Mirela; Lee, Richard
Subject: RE: Fukushima

Hi Charlie,
I just wanted to send you a note and let you know that I’m a little concerned about the spent fuel storage pools for Units 1 and 3 for the reasons we’ve talked about over the years. I know you’ve probably thought of this but it’s a stressful time and I just want to make sure the people you’ve deployed are thinking about this.

I doubt they have access inside the building due to radiation levels so I’m going to make a suggestion which may or may not be nieve, but given the circumstances I’ll make it anyway.

I know you can get the aerial lifts that can go up at least 10 stories. I was thinking you could send a brave individual up on that with a fire hose on the exterior of the building with an alarming TLD so that he would know if the radiation level was getting to high.

You would use the exterior of the secondary containment as shielding. He could place the hose over the exposed wall and then wire tire that to one of the ibeams so that it doesn’t blow off when you start deluge over the edge and onto the deck.

The wire tie is imparitive as it’ll blow back when you start the pump. If they have an extra fire pump that could push water head to 10 stories, you could get some water over the top and into the pool.

This might take 1/2 hour or so to execute and so if the dose rate stays below 20 R/hour this could be pulled off.

I hope you don’t mind me making suggestions and if it is problematic, please don’t hesitate to let me know. Mirela has my cell phone; call me 24/7 if I can be of any assistance. As you know, you have resources here at the lab and I’m sure management would approve of us supporting you know.

Best Regards,

ps. I wish we were further along on that remote sensing project for the RCIC that we just started for you; that could be
quite helpful now.

From: Tinkler, Charles [mailto:Charles.Tinkler(nrc.govI
Sent: Saturday, March 12, 2011 1:18 PM
To: Farmer, Mitchell T.
Subject: RE: Fukushima

Thanks Mitch, right now I don’t know exactly why they are unable to use their isolation condenser or inject water. Thanks for the reminder on flooding. I appreciate your offer.

From: Farmer, Mitchell T. rmailto:farmersanl.qov1
Sent: Friday, March 11, 2011 7:43 PM
To: Gavrilas, Mirela; Tinkler, Charles; Basu, Sudhamay; Lee, Richard
Cc: Grandy, Christopher; ‘[email protected]
Subject: Fukushima

Hi Mirela, Charlie, Sud, Richard,

Don’t know if you are out there. I’ve been watching the situation at Fukushima and don’t like what I’m seeing, at least based on the news reports I have access to.

I don’t know how long a BWR can go w/o emergency core cooling and not sustain significant core damage but it seems like we’re well into that time domain.

Is there anything that can be cdone to help? I don’t know, I’m searching.

The one thing we learned from MCCI though: if you fear vessel failure and you have any means to flood the cavity then you should do that.

They have siliecous concrete in Japan; too much interaction exvessel w/o water and coolability is lost. Let me know if there is anything I can do.



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