performed. After reanalysis, a partial approval could occur because only part of the DCD
was reanalyzed either by EIC or, in some cases, by EAL.

When the reanalyses were

successful, approval was given only to the part reanalyzed. The part of the DCD for .
whichinsufficient samples remained for reanalysis wasstill unacceptable.
VEGETATION ANALYSES

Table 10 (EAL) and Tables 15 and 20 (EIC) summarize the results of the vegetation
analyses, and the graphic comparisons of duplicates are shown in Figs. Al2-A15 (EAL) and
Figs. A30-A32 and A45 (EIC). More than other matrices, vegetation samples approach the
limits of detection of the contracting laboratories with a resultant larger discrepancy in
the results of duplicate pairs.

For several vegetation samples, only the limits of

detectability imposed by the radiochemical methods were reported. Although these data
were not plotted on the graphs, they are included in the attached microfiche.

Despite

some scatter that arose from the low levels of radioactivity, the radiochemical analyses
of vegetation yielded an acceptable data base especially for 795, and 13"Cs, which
contribute the most radiation dose, and also for 239+240,,,, and 24 A.

TERRESTRIAL ANIMAL ANALYSES
Results of the analyses of terrestrial animals, all performed by EAL, are presented
in Table 11 and Figs. Al6é and Al7.

Most samples contained only small amounts of

radioactivity and the analyses met the QC criteria.
MARINE SAMPLE ANALYSES
All samples of marine organisms and sediment were analyzed by EAL and summaries

of their QC performance appear in Tables 12, 13, and 18 and in Figs. Al&8-A23 and A39.
Departures from the ideal line in Figs. Al9-A2l

result both

from

low

levels of

radioactivity and, in some cases, small samples of marine organisms that yield low
activity per sample.

As can be seen in Table 1, counting error restrictions are less

stringent in such cases. Overall, the marine samples had a high level of compliance with
the QC criteria.

14

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