116
RADIOLOGICAL CLEANUP OF ENEWETAK ATOLL
Planning and Programming
117
MOBILIZATION
*
MAT. /SUPPLIES
CS
PROCURE
SHIP
|
ALEMBEL
J) BILLAE
EQUIP.
;
PROCURE
SHIP
il
|
CONSTRUCTION
BASE: CAMP
'
REMOTESITE
CLEAN UP
TEAM A
TEAM B
"
i
TEAM C
UNIBOR
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t
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DEMOBILIZATION
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Zz
A. BoKO
SY. MUNIOR
\ INEDRAL
JIMEOROL
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AMANIJ
BIKEN
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Southwag!
Paccage
Containment would be accomplished by mixing contaminated soil,
cement, and salt water into a slurry and pumping the mixture through
pipes to a tremie barge, then to the bottom of the crater. By keeping the
discharge end of the tremie pipeat least | foot beneath the top surface of
the previously placed slurry, a monolithic mass would be accumulated,
gradually displacing the water from thecrater. All contaminated debris was
to be removed from theislands and encapsulated in the slurry during this
phase. When the water becametoo shaliow to float the barge, the tremie
operation would stop and the slurry line would be held by a crane moving
slowly around to form a mound. During the inactive periods in the
containment operation, Team C personnel would assist Team B in their
cleanup of Runit, the last and largest soil cleanup operation. After all
contaminated debris and soil had been contained, a cleanup of the
containment site would be conducted to assure that afl contaminated
material was in the container before the concrete cap was begun.. The
container would be covered with an 18-inch-thick concrete cap. Once the
-
with noncontarminated
!
material to provide a structure moreresistantto the effects of the sea. 248
!
taken from the Enewetak Engineering Study and adjusted for such factors
I
1
y RUMIT
————
9
JEDROL
FIGURE 2-7. OPERATION SCHEDULE (MONTHS).
:
Ocean
DREKAFIMON
TEAM G
P
Be
Hog
a5
>
The CONPLAN cleanup schedule was based on man-hour estimates
as weather, radiological safety, and emergencies.24? The concept planners
estimated that cleanup of all plutonium contamination over 40 pCi/g on Il
en"
O2/ JAPTAN
Seep Entrance
* MEBREN
SS
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g
peic\
arts?”
RISEWO
Ocean
BOKER
yy
BOKANDRETOK
“ EWEWETAK
(BASE CAMP TEAM A)
ew
2
4
NAUTICAL
5
MILES
FIGURE 2-8. ARMY ENGINEER TEAM ASSIGNMENTS.
islands would require removal of 125,000 cubic yards of soil.250 Th
recognized the many uncertainties in their estimates and the
many
unknowns in
the
mission,
especially the radiological cleanu .
Consequently, theyset no fixed dates but provided only a general estimat
e
for project completion. CONPLAN estimates ranged from 2] to 25 months
for cleanup operations, including demobilization of base camps. 251.252
SUPPORT ELEMENTS
The Joint Staff planners attempted to distribute the Enewetak project
tasks among the Services as equally as possible while retaining unit