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Or. G. M. Dunning, Chief, Radiation
Effects of Weapons Branch, DBM
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July 30, 1954
A. H. Seymour, Marine Biologist, invironmental
Sciences Branch, DBM
POST HARDTACK SURVEY
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Donaldson called Tuesday evening, July 29, regarding the survey for
disestablishment of the restricted area. He had been in telephone
communication with Klement at Eniwetok and had worked out a revised
plan which was necessitated by the recent turn of events,
In brief the plan for the September 1 operation with the Silverstein
will be put into effect except that a replacement for the Silverstein
will be used. Four people will leave Seattle Monday, August 4, and
will be joined at Eniwetok by two others. Departure for the survey
is expected to be within a dey or two of the time of arrival at Eniwetck.
The first seven days of the survey will be in the restricted area.
Samples will be processed and analyzed aboard ship (gross beta; decay
curves; and limited information on isotopic composition that can be
obtained from a single channel gamma ray spectrometer) and the results
will be radioed daily to Eniwetok. Lag between taking samples and gross
beta count of samples should be less than one half a day. After a week
in the restricted area the ship will refuel at Eniwetok and then continue
with the Eniwetok-Guam leg of the survey.
Clearance, travel orders, and travel reservations are being made in the
shortest time possible and are being taken care of by Armand Kell,.
The one month advance in the post Hardtack survey comes at a time when
the Laboratory fs sending a 12 man field party to Rongelap (August 5)
and before all equipment for the September post-Hardtack survey had
been assembled. They will pick up their equipment and move into the
field with all possible speed. The people at Eniwetok have been alerted
and are making preparations for an early departure of the survey ship.
cco:
Capt. K. F. Musick, BMA
Dr. C. L. Dunham, BEM.
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