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NORFOLK
NAVAL SHIPYARD
PORTSMOUTH, VA.
bey
In reply refer to
¥8/8570(271)
(HARDTACK)
>
029
aN 17 1858
From:
Tot
Commander
Commander, Task Force 7
Subj:
Operation HARDTACK; request for change in radiation dosage limit
Ref:
(a)
Encl:
WNavShipYdNorVa conf ltr FS/S811(274A) HARDTACK of 5 Dec 1957
(b)
to Chief, BuMed, info copy to Hdqtrs FC AFSWP
BuMed conf ltr BUMED~742:CCB:ces Ser 01116 of 13 Dec 1957
to NavShipYdNorVa
(1)
Copy of reference (b)
1. It is understood that the radiation dosage limit for personnel while
stationed at EPG during Operation HARDTACK will be established as 3r.
2. Underwater Explosions Research Division Project 3.4 plans for personnel
to go aboard the target ships as soon as possible after WAHOO in order to
effect repairs, recalibrate equipment and make preparations for UMBRELLA.
3. In anticipation of the relatively early re-entry needed by Project 3.4
after WAHOO and the extended work required aboard the target ships between
W&HOO and UMBRELLA, it is mos} desirable that the radiation dosage limit
for Project 3.4 personnel be raised to 4r.
4. It should be noted that no personnel involved in Project 3.4 has ever
participated in an atomic test before and that the earliest possible
participation after WAHOO and UMBRELIA tests will be in 1960. It should
further be noted that every effort will be made to keep personnel exposure
as low as possible.
.
5. The Bureau of Medicine and Surgery was approached by reference (a) with
respect to this change in the radiation dosage limit and has no objection
to this increase (reference (b)).
6.
It is therefore requested that the radiation dosage limit for Project
3.4 personnel be raised to 4r.
BEST AVAI.A.GLE COPY
Copies tor
HQ, FC, AFSWP (with copy of enclosure)
Dr. W. W. Murray, Project Officer, Project 3.4
f
T. J. SULLIVAN,Jr.
By direction
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