-US DOE ARCHIVES
326 U.S. ATOMIC ENERGY
COMMISSION
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ACY SDH
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UNITED STATES
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ATOMIC ENERGY COMMISSION
WASHINGTON 25, D.C.
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February 11, 1958
Mr, Anthony T. Lausi
Director, Office of Teritories
Department of the Interlor
Washington 25, D,C,
Dear Mr, Lausis:
The Atomic Energy Commission, with the concurrence and
support of the Department of Defense and with the approval of the
President, will conduct a series of nuclear tests which will
be known as Operation HARDTACK at the Eniwetok Proving Ground
starting in April 1958 and continuing for approximately three
to four months,
It therefore becomes necessary to reestablish a danger area
surrounding the Atolls of Eniwetok and Bikini.
After studying
the test program, the test conditions, and the weather patterns
normally expected during the period the test operation will be
conducted, it has been decided to use a danger area like that
which was used for Operation REDWING in 1956, except that both
the east and west boundaries will be displaced two degrees,
or approximately 120 nautical miles, to the west,
This new
danger area is described in the attached proposed Notice and
Chart.
We believe that this change will result in a shortened
operation,
We are very much aware of our responsibilities for insuring
tne safety and well-being of the inhabitants of the Marshall
islands during these tests. We are again taking every feasible
precaution to prevent exposure of these peoples to the hazards
of our tests, The measures which were instituted during Operation
REDWING and which proved so successful in safeguarding the
Marshall Islands people will be augmented on the basis of the
eyperience gained during that test series and the technical
edvances which have been made since that time, The network
of weather observing stations providing information to Joint
Task Force SEVEN has been increased and will lead to a
Significant improvement in the accuracy of the basic weather
data used in the prediction of fallout patterns, Fad-safe stations
will be operated at Rongelap Wotho, Ujelang and Utirik, The
personnel at these stations will be ready to advise and assist,
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