March 18th, 2011 – NRC and GE Inspecting Photos to Determine Whether Drywell Head Intact in Reactor 3 – 50 Mile Evacuation Was Good Call – Aleutian Islands I-131

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From: Trapp, James
-. Sent: Saturday, March 19, 2011 5:22 AM
To: Jackson, Donald
Subject: RE: March 18, 2011- 2000- CA Briefing On Japan Reactor Accidents

What a mess!

From: Jackson, Donald
Sent: Friday, March 18, 2011 8:45 PM
To: Dean, Bill; Lew, David; Wilson, Peter; Roberts, Darrell; Collins, Daniel; Lorson, Raymond; Baker, Pamela; Walker,
Tracy; Clifford, James; Miller, Chris; Weerakkody, Sunil
Cc: Screnci, Diane; Sheehan, Neil; Trapp, James; McNamara, Nancy; Tifft, Doug; Hansell, Samuel; Hinson, Felicia;
McKinley, Raymond; Rogge, John; Jackson, Donald
Subject: March 18, 2011- 2000- CA Briefing On Japan Reactor Accidents

The following is a synopsis of the briefing with changes or noteworthy items underlined:

Status of Fukushima Daiichi Units:

Unit 1- No Significant Change

Unit 2- No Significant Change

Unit 3- No Significant Change, new photos of Unit 3 from west to east provided to in country team by TEPCO show massive structural and system damage to multiple levels of the reactor building. The photos are being analyzed by the team and General Electric to determine potential for extreme SFP damage, and whether or not the drywell head is intact.

Unit 4- No Significant Change

Other Issues-

Unit 5 and Unit 6- Both have AC Power

Unit 5 and Unit 6 SFPs Being Positively Cooled

Chairman on a conference call this evening with Naval Reactors and INPO, purpose of call unknown

Water sprays to Unit 3 having little or no impact

AMS flyovers have shown most deposition’n6w north and -west of-plant with a narrow band where 13 miles  from the site, the 4 day integrated dose to a member of the public’v•6uldlb 1 REM…..the 50 mile evacuation was a good call

NARAC has some calculations that may should meaningful 1-131 uptake is possible in the Aleutian Islands, more work being done

San Onofre and Diablo Canyon may have detected small amounts of 1-131 …. being confirmed Large press contingent has confirmed plans to be at Monday Commission meeting.

VR
Chief- Region I DRP PB5
(610) 337-5306

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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

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