50
IWAN a Ch bit OU td a a a
and the nextfor visiting and food gathering (Figure 2-2), !05
The cleanup andrehabilitation alternatives considered in the DEIS were
based on three possible cleanup actions and four habitation plans. The
cleanup actions were identified as:
I,
WN.
No cleanup.
Removal of all hazardous, obstructive, and radioactive scrap;
plutonium concentrations greater than 400 pCi/g from four
islands, Lujor (Pearl), Aomon, Boken, and Runit; and other soil
with plutonium concentrations between 40 and 400 pCi/g on a
wm >
II].
C.
D.
case-by-case basis.
Extensive cleanup of residential and agricultural islands. The four
habitation plans were identified as:
Norestrictions on island or food usage.
Live on southern islands and Enjebi; visit northern islands; use
food from southern islands or Enjebi, plus coconuts from 12
northeast islands, and pandanus and breadfruit from Enjebi farm
plots or imported.
Live on southern islands; visit northern islands; use food from
southern islands plus coconuts from 12 northeast islands.
Live on southern islands; visit southern islands only; use food
grown on southern islands only. ©
:
Habitation
Residence
Plan
Islands
A
au?
Southern islands
and Enjebi
B
BUA egy WE LI Ugidbiisiiiiig
There were 12 possible combinations of cleanup actions and
rehabilitation plans. Some were found to be incompatible, and others were
rejected for basic deficiencies. Of those remaining, a matrix was
constructed (Figure 2-3) to show a reasonable range ofalternatives. Five
representative combinations were chosen for detailed analysis of dose
reduction, health effects, cost, and general acceptability. The five cases
(shown in Figure 2-3) are described briefly as follows:
Case |: No cleanup; use ofall islands without restriction as indicated in
the 1973 Master Plan. This case was rejected as it would expose the people
to all of the radiological and physical hazards existing in the atoll.
Case 2: No radiological cleanup; removal of physical hazards and
obstructions to use on the southern islands, Jinedro! (Alvin) through
Kidrenen (Keith); residence on the southern islands only; use of food
grown on only southern islands. This case was rejected as it did not permit
eventual use of the northern islands.
Case 3: Removal of hazardous and obstructive scrap fromall islands and
removal of an estimated 79,000 cubic yards of plutonium concentrations
from Boken, Lujor, Aomon, and Runit (Figure 2-4); disposal of
contaminated debris and soil by one of several options including crater
containment; residence on southern islands only; use only coconuts from
northern islands. (Enjebi was regarded as a special case by the AEC Task
Group, and Case 3 did not include removal of plutonium concentrations in
Food Sources
Agriculture Islands
Hatetation Plans
Foods®
ane
an
Southernislands
Alf
Enjebi
)
aA
AN islands used in eccordance
8
Live on Emebi and southern
c
Live on southern isiends; use
o
Live on southern relents, une
wrth Enteretah Master Pian
lalanci, use food grown on
only coconut from nothern
tood gown on only southern
Enyebi; vee pencdanve endl
braadtruit grown only in
forming plots on Enyabi o¢
intends
sslercdé
Cleanup Actiom
1) No cleanup
(1)
Pandanus and
Breadfruit®
wa
imported te Enyebi
Cust
Cou 7
AEC Opnen 1?
AEC Option I
Removal of hezardout and
Cove 4
Cans 3
obtteuctiwe fom adiqgctive
AEC Opnon iv
AEC Option tH
scrap and redrosctive scrap
hom all itlandt, Removal
Tyee emmeE
of Pu concentrations from
Cc
D
;
Southern islands
Southern islands
Southern islands
Northernislands
Southern islands
Coconut only
1 Extentive desnyp of
reudencte afd agicvlture
semntoiechtniisibeataniussea
sei
dose reductions equivalent to or less than the AEC criteria, Figure 2-1,
“Foods grown in farming plots produced by removing radioactive soil and replacing it with
nonradioactive soil in sufficient volume to contain mature root systems of these plants.
FIGURE 2-2. EXPLANATION OF HABITATION PLANS.
Cue 5
Appraximetely AEC Optran V
itlands &
All
3Foods grown in existing soil, except where noted.
,
four intends ©
. All
4 Report by the AEC Test Group of Recommendations for Cleanup and Hehabrliteion of Enewetak,” June 19, 1874
6 Case 2 dttets trom other progremt in Row | by ramovel of physical hererd enc obstructive debe categories of radiosctive and nonradroactrve 1crap on
ee
© Plutonium concentranons refer to burial grounds and soil dapernons of concentration in enceof 40 pCi/g Areay of yor! concentration in qucess of
400 pOr/g should be removed without question; erest of 20!) concentranon between 40 and 400 pCi/g should be considered on an ndrndual bans
4 Removalof alt serep trom ofl reudence atands wecitied in sech calumn end remoral af ypecihic amounts of soil in ipecific erga Io achieve external
and internat dows no greeter than would be sbsarbed from naqurally orcurring wurces
FIGURE 2-3. ALTERNATIVE CLEANUP AND HABITATION PROGRAMS.