-8Comments: The Survey does claim (page 507) that activities of Am-241-to-Pu-239, 240 in Enewetak soil range up to 3.5. However, it goes on to indicate that the highest ratios are for those islands which have the lowest absolute amouats of Am-241 and Pu-239. In a communication with D. W. Wilson, author of the cited information, he explained that the high ratios result from mmparing two numbers which are themselves small and near the Limit-of-detection; consequently, the 3.5 value is not significant. (ALL ratios greater than 1.0, moreover, were calculated for samples taken from the southern islands of the Atoll.) The more meaningful ratios are listed in Table 14, page 98, of the Survey. Those ratios are for the northern islands and they average about 0.40 with the largest being 0.51. Plutonium continues to be the more abundant of the two elements. 9 age 9, lines 16-18 - "Due to further radioactive decay of 24d, the Am activity concentrations can be expected to double over the next 50 years," Comments: The source of 241 at Enewetak Atoll is the decay of the parent nuclide 24tou, . decay of 241, Pu is » The maximum 241 activity which can result from the ata 241 Pu 2.6% of the initial level is reached in 69.6 years. og activity. . wmu This maximum 2te Am However, at 17 years 65% of the maximum 24.an activity is already present and at 20 years 71% is present. The average time since most of the tests at Enewetak is about 20 years. _On this basis alone the 241 ~- Am levels at Enewetak will not increase by more than 30-40% above present levels. Page 9, lines 21-22 - "The DEIS limits consideration of inhalation risks," Comments: The statement is in error. . . 239+240 Pu to The DEIS includes also doses . to various organs resulting from the ingestion of 239,240 . . Pu via food chains. See, for example, Table 235, p. I1-48, Vol. II for integral doses from the various food chain; Table 239, pp. II-53 to 55, Vol. Il for doages from