WESeies Se tore=beeenhet een
1.5 m.
Each hole was cased with slot-
ted 2-in-diameter polyvinylcarbonate
Purpose:
Pipe that was extended to the soil
surface.
The main thrust of the program was
The pits were backfilled to
to determine radionuclide concentra-
minimize impact on the environment.
The first hole was located near the
4
‘
island center.
‘
.
water was measured with an tn sttu
i
‘
:
t
'
i
i
The salinity of the
conductivity probe.
soils,
nonfood species that have the poten-
Water was pumped from the |
tial to serve as indicator species.
Radio-
The unique information that this sur-
nuclides, major elements, nutrients,
vey provided is:
and bacteria were measured at the
e
Lawrence Livermore Laboratory to pro-
able radionuclides,
e
a day and sampled serially to deter-
e
The well network is available for
ilaue “Let tee ch ea
Intra-island variability in
radionuclide concentration in
On subsequent trips to
the atoll we plan to assess thoroughly
a eteSc wee cartLha le tS cote
The relationship between food
the same location,
Function of usage.
— cate. bast mete SeEo
entre
ne
.
species and nonfood species at
mine changes in water quality as a
the dynamics of radionuclide cycling
the vegetation, and
e
A data base for assessment of
terrestrial food chain transfer
in the ground water reservoir and to
of radioactivity from the soil
maintain a surveillance of the water
quality.
Soil-to-plant and soil-to-fruit
concentration factors for detect-
Specific
wells were pumped continuously during
resampling.
and to relate the radioactivity
in food species to that in indigenous
center hole and the salinity measured
vide data for water quality.
these with soil concentrations at
availability to plants in the coral
Two holes were
wells, filtered, and sampled.
tions in food species, to correlate
various depths, to determine nuclide
then drilled on opposite sides of the
in each.
PLANT/SOLL SAMPLING PROGRAM
to man for long-term dose eval-
The program operation was
uation following resettlement of
fashioned after our Enewetak ground
the atoll.
water study, and comparison of the
Methods and Measurements
data from both atolls should be espe-
The: sampling program consisted of
clally valuable for predicting the
mechanism and rates of cycling of the
the integration of a series of samples
constituents in ground water at Pacific
of food species with soil profile sam-
atolls.
ples obtained on an ad hoc, available
A complete report on the
Bikini and Eneu ground water sampling
species basis.
and analysis has been published.
growing and bearing Fruit on Bikini
Mmmeep 888956
-~6-
All food species