Iit.
TRANSURANICS* IN SURFACE** SOIL
Based upon a study of the history of test operations, upon the
data reported in NVO-140, and upon radiological measurements
made during the cleanup project, it was concluded that no 1/4
hectare average is greater than 125 pCi/gm.
The island average
is determined to be 95 pCi/pem.
1t is therefore concluded chat
the transuranics classification should be Food Gathering.
IV.
TRANSURANICS IN SUBSURFACE SOIL
Based upon a study of the history of test operations, upon soil
profile data reported
in NVO-140,
and upon the results of the
Fission Product Data Base Program, a pridded subsurface sampling
plan was implemented to delineate the boundary of each area exceeding
160 pCi/gm.
No such area exceeds 1/16 hectare.
Authorized
Department of Energy
Representative
*For the purpose of this certification, the term “transuranics" is
defined as those radionuclides measured and calculated by the ERSP
to guide the Enewetak cleanup, i.e., °38Pu, 239pu, 240pu, and
24 lan
**Surface, in this context, refers to the Layer of soil observed by
the in situ detector in its normal measuring position.
It is generally
taken as approximately 3 cm in depth.
3-2
FIGURE 7-112. CERTIFICATION FOR ISLAND BELLE (Continued)
346