FOIA Documents Related to Fukushima Daiichi Reactor 4

FOIA’s Related to Reactor 4

NRC Transcripts – TEPCO video of Unit 4 SFP inconclusive – Japan claiming reflection of water but could be anything

NRC Transcripts – Chuck Casto Re Fukushima Unit 4 – “For me, I’m evermore convinced that there’s nothing there. There’s major damage to that building. And I just have to stake my career on it.”

NRC Transcript – TEPCO relayed information Unit 4 SFP Dry – Walls collapsed and incapable of holding inventory – Unit 3 “everything else gone” –

NRC audio files reveal details on Reactor 4 fires and radioactive plume that traveled northwest of Fukushima Daiichi

March 15th, 2011 – Fukushima Daiichi Units Degrading – Zirconium Fire at Reactor 4 SFP – Reactor 2 Possible Reactor Vessel Breach & Ex-Vessel Core Reaction

March 15th, 2011 – NRC Calculated Fukushima Unit 4 SFP Boil-Off Decay Times 20 – 90 – 365 Days

March 15th 2011 – Unclear Fires At Reactor 4 SFP

March 15th, 2011 – The fire’s back in unit 4 – Unit 4 pool has a full core load in it and needs full attention – Holes in the upper structure from the earlier hydrogen explosion in unit 4

March 15th, 2011 UPDATE: 2000 EDT Telecon on Fukushima Daiichi – Unit 4 New Fire Broken Out – Doses in Area around 30R/hr

March 16th, 2011 – Unit 4 SFP walls have collapsed – Fuel may no longer be intact

March 16th – Reactor 2 Explosion – Fires in Reactor 4 – Onagawa NPS levels 6.1 uSv/h

NRC Fukushima Transcripts – Evidence of fuel or very highly radioactive material outside of Reactor 4 after explosion

Reactor 4 SFP dry, fuel uncovered, Radiation levels outside unit 30R/hour after fire

March 16th, 2011 – Assessing SFP Damage – SOARCA – Uncovered Spent Fuel Reports – Leak at Unit 4 SFP

March 16th 2011 – NRC Admits Zirc Fire Is Possible – But Won’t Release All the Research Data

March 18th, 2011 – Accident progression at Fukushima Reactor 4 SFP MELCOR Request

March 18th, 2011 – There’s Got to be a ton of loose materials floating in the SFP – I would not be surprised if the top 10 feet or so of the sfp was sloshed out

March 18th, 2011 – SPF Issues Investigated – Little Cladding Left – Fuel maybe in form of a rubble bed

April 19th, 2011 – NISA/TEPCO Meeting – Status of #4 SFP – JNES/Sandia LAb MELCOR Results

March 19th, 2011 – Risk of further explosions in SPFs – Should SFP be removed to temporary storage?

March 20th, 2011 – The band of elevated dose rates up to 18 mi from plant to the northwest seems to coincide with “Lube Oil Fire” in Reactor 4 SFP

March 21st, 2011 – Clarification and assessment of potential radiological release source terms for Fukushima Units 3&4 spent fuel pools

March 30th, 2011 – Events at Fukushima Units 1-4

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