April 16, 1973
Biomedical Division
411582.
Captain Gay
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Major Cotner
Dr. N. F. Barr
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Assistant Director for Measurements and Evaluation
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DBER, Atomic Energy Commission
Washington, D.C. 20545
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Dear Nat:
This letter provides a summary of the progress of the Eniwetok program and
projections for May 22.
The status of the sample analysis program is summarized in the attachment.
This program is moving along very well with some lag in the determinations which
require wet chemistry, such as Wr and 29Fe.
Most of the available information pertaining to the soil sampling ana
exposure rate measurements portion of the survey will be shown on translucent
overlays that may be suserimposed upon photographs of the individual islands.
This includes an overlay of each island depicting the soil sampling Locations and
separate overlays illustrating all of the available data regarding the concentrations
(expressed in pci/gn) of L37eg,
Co, 9sy and ©39Pu in the soil samples collected
to a depth of 15 cm.
Activity vs. depth information will also be available in
either tabular or graphical form.
in addition, all exposure rate measurements
made in the field with the Baird-Atomic scintillation detector at the soil
sampling iocations and the results of the TLD measurements will be shown on
Similar overlays.
The evaluation aspect is well in hand.
Pathway evaluations are made and
updated about as rapidly as data come in, so the projections for sample analysis
also apply to pathway evaluations.
On May 22, we will be presenting island-by-island evaluations of potential
dose through ail pathways within theconstraints of the available data as projected
above. Preliminary evaluations will be made of dosages to be expected with
donsiderations of where the population will likely live, farm, fish, visit, etc.,
and determination of the sensitivity of expected dosages to these factors.
REPOSITORY
DoE History Dusron
Sincerely yours,
Whoo
Tommy Me Crow Jie {326 Dial
COLLECTION RE Ice
Daniel W. Wilson
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BOX No.
W. NeASREA
R. Ray, NVOO
W. Gay, DMA
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Assistant Director for
Environmental Research
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