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“The Marshall Islands Advisory Group provide the follaving coments aad
recommendations to issues and questions
Advisory Group's visit to Enewetak {a August 1978.
- 3, ° Aomon
Crypt ~ The 40-80-1760 pCi/g quideace was not fatended ta apply
to special or unique situation such as the hones Cryst laforustton
about the contents of the crypt is tasdequste for
to offer any useful guidsace: [¢ might have been better to
the crypt undisturbed. Mowever, stace the decistes hes heen ande
to remove the buried contaminated material, ft fs probably better
for Col. Gauchspies to deal with the problem than te seek advice.
from other less-informed sources. .-
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Prectseness of §0-80-160 - The 40-80-160 guidance cos and ghould be
' wet
DWA. However, DOE should be “ressenable* fa {ts ove
a
the cleanup relative to cartification stace both soi} removal and
mrasurenent-ogthods are subject to errors ef at lesst o few percent.
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Surface Hot Spots - Mintmus Area Levels - The opinion of the
Group {s thet the sinimm area requiring cleanup {is that caused hy
an IMP reading (90% of a 25 meter square area) that exceeds the
60-80-3160 guidance. However, if romoval of & “hot spot* brings-the .
Le? reading dom to the approoriata limit, then it should pot be
necessary to rezove sof) from the whole 25 meter square area.
4. Ploving Advisabiiity - the Advisory Group 1s awaiting the results of
_the plowing experiment before coas{cering any guidance regarding plowing.
&
Island Averege vs Maxims Yalues - Senedial action-{s based upon maxian
contamination levels. Radiological cose assessment aad decistons
regarding
lation should be based on averege valves for larger
environsental units such as on entire island or group of {slands.
6. . Contaminated Bunker Guldance - Precise adherence to the ANSI standard
{s not appropriate to the bunker situation. Since strenuous efforts
have been mace to remove locse contamination and because of fits location
and quanttty the fixed contamination does naz appear to represent a
hexlth hazard. The preservation of a bunker as a-store refuge for
Ssiend residents 1s a wortinchile alternative to disposition of these
strictures. Although of no spparent
t ta subsequent residents, ©
the off-shore Kickapoo tower anchor blocky do mot appear to be a
red{ation hazard and need not be rmmwed.
7.
Subsurface Contamination - Subsurface contamination {s defined as
"yadioactivity gore then about 2 cy under the ground surface, or at a
dogth not detectable by the DP, The Advisory Group ts cot yet prepared
to offer guicence. In fact som eeabers of the Advisory Grocp do not
believe we should recomend criteria for subsurface contasinstions -
because of tie uncertainty of the extent of subsurface contamination
@a Une atoll,
Subserfece contamiazifon tn smal) “bot spols* 4. apt to
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