UNCLASSIFIED
previous missions,

a_i

Rotation of the werking personnel resulted in getting

the most work accomplished within the exposure allowed, and this reassign=
ment was made smoothly and without confusion.

Considerable fall-out on the islands north of the test island was
’ observed by the C-47 plane survey and later confirmed by ground measurements, Fall-out was also received on the photo tower and an Eniwetok,
but it rapidly decayed and never approached the tollerance limit.

;
x

more efficient in the case of the bottom filter boxes to remove the filter
paper holders without removing the baxes from the planes, Gloves and 18"

tongs were used for this operation, although a stapling machine was used
to mark the papers, The monitors kept the handling personnel advised of
the intensities at all times. During the stapling operation, it was
realized that the personnel were near tolerance, but, as no relief personnel
were available and a halt in the operation would have caused a serious delay,
the workers continued to work until the papers were loaded on planes and on

their way to the ZI. It was recommended that more remote methods of handling
filters for future tests be devised,

On ZEBRA=plus 3 days all of the ships of the task force in the lagoon
were inspected by monitoring parties, These groups paid particular attention
to the blower intake screens, the open decks, the ship's boats, the
evaporators, the auxiliary condensers and any cargo that the ship happened

to have on board.

All monitoring operations ceased after ZEBRA~plus 5, and the test island
was declared closed. Captain Mallory was assigned to remain at Eniwetok
Island until relieved by the permanently assigned garrison monitor.

Se ee

3

In the operations on Eniwetok Island, it was found that the drone

planes showed evidence of much higher exposures than on the previeus tests,
The top filter boxes were removed from the drones, but it was considered

ee

ee

*
_

the desired samples,

Monitor Schedules.

Copies of Monitor Schedules fer ‘Operation SANDSTONE are appended to

this ANNEX es Appendix (1),

a

qe

On the LCM Tank Mission, Radsafe Party No. 6, the first tank became
stalled near the zero point, but the reserve tank successfully obtained

-9tie

5001929

UNCLASSIFIED

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Select target paragraph3