+ 13%) for the entire group and also individual islands (to lesser precision for surface samples to a depth of 5 or 15 cm (depending on which
samples were analyzed).
Additionally, for the group, a mean value could
be determined for profiles to a depth of approximately 35 cm,
The number
of samples for each island in Phase I, Group I would allow for a determination of its surfac@ mean only, but would not be sufficient to differentiate any one island from another,
On first inspection,
this information seems to be somewhat insuf-
ficient; however, these islands are essentially clean, and for an anticipated mean value for soil concentrations like 0.5 to 1.0 pCi/g a plus
or minus twenty percent or so is really quite adequate for precleanup survey
requirements,
This is certainly sufficient information to make estimates
on volumes of soil contaminated to unacceptable levels.
The islands of Phase I, Group II were treated differently from
Phase I, Group I islands.
activity.
These were sites of considerable construction
They would also be the sites for primary habitation upon the
return of the Eniwetok people.
Although these islands were on the south-
eastern side of the Atoll, and from all appearances very clean, it is
prudent to take a very careful look at them,
These islands were sampled
sufficiently, somewhat excessively, in fact, to be able to stratify as
a group, an individual island or within each islandallow as much as three
to five stratification, if necessary.
Relatively deep profiles (to 120 cm, 4 ft.) were taken in quantities
sufficient to develop a mean value for each Phase I, Group II island. The
depth was selected to allow for the deep disturbances expected from
construction activities,