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.


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.



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