the lagoon vroved to b@ dangerous to personnel.
Salt spray and water
made maintenance of electrical equioment on the rafts difficult.
Both elactrical and moving mechanical parts ccerroded quickly.
Only a
minority of project personnel. were able to work at the raft stations
without becoming seasick. Only two of the original nine raft stations
sampled successfully dwring Shot 1. All raft instrumentation recover~
able after Shot 1 was removed from the rafts and used at land stations.
Since no samples were obtained from predicted base surge region
of any CASTLE shot, none of the desired information about the charac-
teristics and significance of the radioactive debris distributed by
base surge phenomena was obtainsd.
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RECOVERY AND SHIPMENT OF SAMPLES
Recovery was carried out on the fourth, fifth, and ninth day
after Shot 1, the first day after Shot 2, the first and second day
after Shots 3 and 4, and the first day after Shot 6.
A two-man team
used a 10-passenger heliccpter to recover samples from the land
stations, A secon two-man team used an LCM to recover samples from
the raft stations after Shot 1. The recovery teams removed the
spider assemblies from the IFC's, placed them in dust-tight boxes,
and moved them tc the packing area,
All locations available for packaging samplss were somewhat
windy and usually in contaminated areas,
Packing was done on an open
barge nezr Nan after Shot 1, in a Tare tent after Shot 2, ina Nan
tent after Shot 3, on Oboe, in the reer of a closed truck turned on
its side after Shot 4, and in a tent at Elmer after Shot 6.
were removed from the trays and capped.
The jars
The trays were surveyed
where possible, and a few samples salected for decay measurements at
the Project 2.6b Elmer laboratory. Plastic "snap-on" caps were put on
the glass cups, and the trays were sealed with aluminum foil. The
trays and jars were returned to Army Chemical Center, Maryland by a
special sample return plane which usually left Eniwetok one or two
days after recovery was completed.
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