March 17th, 2011 – JSDF helicopter crews report dose rates of 375 R/hr 300 ft above Reactor 3

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From: Campbell, Larry
To: Arroyo, Damaris; Atack, Sabrina; DeJesus, Jonathan; Guardiola, Maria; Hammelman, James; DeGange, Jonathan;
Marcano, Jonathan; Morrissey, Kevin; Roman, Cinthya; Soto, Soly; Tiktinsky, David
Sent: Thu Mar 17 09:07:38 2011
Subject: FWS “Official Use Only” : 0700 EDT (March 17, 2011) USNRC Earthquake/Tsunami SitRep

Please see attached information and note that this is OUO and should not be shared outside the Federal Family. The below information is addressed further in the attachment.

[quote]

Federation of Electric Power Companies of Japan (FEPC) reported at 1015 EST, March 16, 2011:

Dose rate at main gate (monitoring station 6) ranged from 150 mr/hr to 1000 mr/hr.

10 Rem/hr west of Unit 3 and 4 (assuming on roadway next to reactor buildings)
30 Rem/hr between Units 2 and 3
40 Rem/hr between Units 3 and 4

NHK media report on March 17, 0100 EDT stated that helicopter crews dumping water on Unit 3 reactor building reported dose rates at 375 R/hr at 300 ft. above the building.

[/quote]

 


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