FOIA
Pages from C143073-02CX --13 Total amount of low level radioactive water discharged from the plant is about 10,390 tons and total radioactivity releasedthrough the discharge is about 150 billion bq

April 10th, 2011 – TEPCO discharged 10,390 tons of radioactive water containing over 150 billion becquerels of total radioactivity

From: PROTOCOLOFFICE-EM [mailto:[email protected] Sent: Sunday, April 10, 2011 7:03 PM To: PROTOCOLOFFICE-EM Subject: URGENT: Notice ( 10 April 2011) URGENT (18:30) Sunday, 10 April 2011 To All Missions (Embassies, Consular posts and International…

Dr. Shunsuke Kondo has been the Chairman of the Japan Atomic Energy Commission since January 2004.

March 12th, 2011 – Chairman of Japan Atomic Energy Commission’s high-level report on Fukushima Daiichi sequence of events

Shunsuke Kondo was born on July 26, 1942. He obtained a bachelor’s degree from the Department of Nuclear Engineering, School of Engineering, The University of Tokyo in 1965 and became a Doctor of…

March 28th, 2012 - The consensus view on the recommendation of not flooding the drywell - Units 2 and 3 are well vented already due to failed containments

March 28th, 2011 – The consensus view on the recommendation of not flooding the drywell – Units 2 and 3 are well vented already due to failed containments

Subject: Re: Info from science group call Date: Tuesday, March 29, 2011 4:43:39 PM Agree, the two issues steam condensing causing h2 explosive mixture and and loss of the vent path are both in…

March 29th, 2011 - Point Paper on Contaminated Water at Fukushima Plant

March 29th, 2011 – USAF Point Paper on Contaminated Water at Fukushima Plant

POINT PAPER ON CONTAMINATED WATER AT FUKUSHIMA PLANT Problem: – TEPCO has reported standing, contaminated water in the basements of the reactor buildings at Fukushima and has asked the USG for assistance with dealing with it….

March 28th, 2011 - Reactor 4 Spent Fuel Pool Specs and Question About Where Cooling Water Is Going

March 28th, 2011 – Reactor 4 Spent Fuel Pool Specs and Question About Where Cooling Water Is Going

From: Sheikh, Abdul To: Ali, Syed; Scott, Michael; [email protected] <[email protected]>; Taylor, Robert Sent: Mon Mar 28 01:32:10 2011 Subject: Spent Fuel Cooling This morning TEPCO informed us of the following: Volume of water…

If Fukushima Unit 4 was uncovered in a week, it was not a simple boil-off.

March 18th, 2011 – If Fukushima Unit 4 was uncovered in a week, it was not a simple boil-off.

Hi Jennifer, Attached are our recent MELCOR results for the Fukushima Daiichi Unit 4 spent fuel pool. These results show that there are no core concrete interactions, because the low decay power of…

NR Program Questions on NRC BWR MELCOR Spent Fuel Assessment

March 21st, 2011 – NR Program Questions on NRC BWR MELCOR Spent Fuel Assessment

Jason Below are questions from NR program on the subject from 1015 call 21 Mar 11- 1. What is the decay heat assumed in the model. How is the fuel and its decay heat…

March 16th, 2011 - From Chuck and Japan Team - Unit 4 spent fuel pool-Likely dry, structural integrity uncertain, uncertain can hold water

March 16th, 2011 – From Chuck and Japan Team – Unit 4 spent fuel pool-Likely dry, structural integrity uncertain, uncertain can hold water

From Chuck and Japan Team – Unit 4 spent fuel pool-Likely dry, structural integrity uncertain, uncertain can hold water Pages From C143073-02A –22 March 16th, 2011 – From Chuck and Japan Team –…

NRC Reactor SafetyTeam Spent Fuel Pool Fukushima Daiichi Cooling Recommendations for mitigationof dose rates

March 18th, 2011 – NRC Reactor Safety Team Spent Fuel Pool Fukushima Daiichi Cooling Recommendations for mitigation of dose rates

311812011 (1423 EDST) NRC Reactor SafetyTeam Spent Fuel Pool Fukushima Daiichi Cooling Recommendations for mitigation of dose rates All options assume addition of boron or other poison, If available and continuous. Water flow should be maintained…

Has the suspected Unit 1 primary containment leakage discussed today (Chuck-to quantify) been factored into the assumptions and subsequent recommendations

April 3rd, 2011 – Has the suspected Unit 1 primary containment leakage been factored into the assumptions and subsequent recommendations

From: E.Bradley@iaeaorg Sent: Sunday: April 03, 2011 7:41 AM To: Scott, Michael; [email protected] Cc: Casto, Chuck; N [email protected]; K.Yamada@iaea org Subject: RE: Supplemental Information on Venting Rev 6 Mike, Would you also provide…

Pages from C142759-02CX --7 Calculations to Determine Salt Accumulation in Fukushima Reactor Vessels

March 22nd, 2011 – Calculations to Determine Salt Accumulation in Fukushima Reactor Vessels

Pages From C142759-02CX –7 Calculations to Determine Salt Accumulation in Fukushima Reactor Vessels

April 9th, 2011 - Though I cannot see any goal, I will do my best to save the nuclear power business

April 9th, 2011 – Though I cannot see any goal, I will do my best to save the nuclear power business

—- Original Message From To: Howell, Art Sent: Sat’Apr 09 07:07:08 2011 Subject: I received your letter I Thanks! Dear Art, I received your letter probably more than a week ago but I…

NRC received nearly all radiation data during gaps identified in previous transmissions

March 24th, 2011 – NRC received nearly all missing radiation data from March 13th – March 15th window

From: Imboden, Andy – Sent: Thursday, March 24, 2011 5:17 PM To: Mazaika, Michael; PMTO1 Hoc; Brown, David Cc: Harvey, Brad; Quinlan, Kevin; Galletta, Thomas; Harvey, Brad; Brandon, Lou Subject: RE: Radiation data…

Summary of Naval Reactors Warm and Hot Zone Dose Assessment

April 9th, 2011 – Summary of Naval Reactors “Warm” and “Hot” Zones around Fukushima Daiichi

From:Call, Michel Sent:Saturday, April 09, 2011 4:09 AM To:Hay, Michael Cc:Miller, Marie Subject:Update – summary for the NR hot zone and warm zone item Attachments: Summary of Naval Reactors Warm and Hot Zone Dose…

MELCORE Source term for use towards Tokyo

April 1st, 2011 – MELCORE source term for use towards Tokyo

From:Hoc, PMT12 Sent:Friday, April 01, 2011 4:17 AM To: Miller, Marie Cc: Casto, Chuck; Monninger, John; Collins, Elmo; FOIA Response.hoc Resource Subject: FW: Request for Copy of Source Term Sent to NARAC Attachments: MELCORE Source term for…

strong concern aboutthe likelihood of very rapid stress corrosion cracking in the reactor primary system

March 25th, 2011 – Strong concern about likelihood of very rapid stress corrosion cracking in the reactor primary system

>Date: Fri, 25 Mar 2011 09:57:48 -0700 >Subject: reactor#3 and others >From: [email protected] >To: [email protected] > — – – – – – — – – – – – – >Per, I’m troubled by…

What We would Do (The US BWR Operating Community)

March 23rd, 2011 – What We would Do (The US BWR Operating Community)

From: Shea, James Sent: Wednesday, March 23, 2011 5:57 PM To: RST01 Hoc; RST07 Hoc; RST05 Hoc Cc: Brown, Michael; Norton, Charles; Brown, Eva; Ruland, William; Nelson, Robert; Plasse, Richard; Brittner, Donald; James Shea;…

Personnel protection strategies for SFP water delivery

March 18th, 2011 – NRC experts worried ground contamination and shine dose from steam plumes after water injection to SFP

From: Hoc, PMT12 Sent: Friday, March 18, 2011 1:17 AM To: LUA08 Hoc Subject: Personnel protection strategies for SFP water delivery Tom, information attached. FYI, we are watching live video of the water…

The RASCAL inputs are for information. Please do not share this information outside of NRC

March 16th, 2011 – The RASCAL inputs withheld from States – Please do not share this information outside of NRC

-From: Lynch, James Sent: Wednesday, March 16, 2011 3:39 PM To: OST05 Hoc; Barker, Allan; Browder, Rachel; Erickson, Randy; Logaras, Harral; Maier, Bill; McNamara, Nancy; Tifft, Doug; Trojanowski, Robert; Woodruff, Gena Cc: LIA04 Hoc;…

USNRC rationale for deployment of the DOE aerial measurement system

March 16th, 2011 – USNRC rationale for deployment of the DOE aerial measurement system

Ron, Below is USNRC rationale for deployment of the DOE aerial measurement system. We believe this is a high priority to enable gathering essential data for the determination of informed protective action recommendations,…

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