March 14th, 2011 – Indications of Breach of Containment at Reactor 2

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From: Franovich, Mike
Sent: Monday, March 14, 2011 11:16 PM
To: Ostendorff, William
Cc: Nieh, Ho; Warnick, Greg; Kock, Andrea; Zorn, Jason
Subject: NHK WORLD English – Unit 2 explosion being reported

The following link is directly to the NHK news network. There are several news feeds on Daiichi Unit 2 explosion near the torus/suppression pool. There is also a report of a fire breaking out of either Unit 3 or 4 (mixed reports as to which unit).

TEPCO news conference and info from NISA are the basis for the story below. With pressure buildup in the reactor, the seawater injection with the fire pumpers simply do not have enough head to inject water into the vessel.

Following the explosion, containment pressure dropped from 50 psia to atmospheric pressure (suggests a breach of the primary containment).

Also, there is a story of 17 US Navy personnel from the USS Reagan who were contaminated (low level) during their helo ride to Sendai city.

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