Table 223. Climatological data for Kwajalein and Enewetak,” Percentage of total time at each wind-speed interval Jan Feb Mar Apr May June July Aug Sept Oct Nov Dec Av Wind speed, knots? 0-3 1 1 1 4) 1 1 6 10 16 9 3 1 4.2 4-10 15 12 22 20 27 27 49 60 59 63 42 20 «34.7 11-21 68 80 70 75 69 70 44 29 24 28 53 70 8656.7 22-33 15 7 7 5 3 2 1 0 ) 4.4 1 0 0 0 0 0 0 0 0 0 0 0 NE NE >33 Prevailing wind direction and . NE frequency” NE NE NE NE NE E/NE E NE NE , each ° Yr, of _Yr_ record Precipitation® Av. amount, in, Greatest amount, Least amount, in. Mean number of days, 0,01 in, -- 86% 87% 81% 77% 67% 64% 36% 31% 27% 33% 55% 74% -- or 1.84 1.86 1.28 4.57 3.37 6.30 2.63 51.46 30 1,95 10,21 1.02 7.33 3.86 8.38 7,03 15.35 14.41 13,17 18.07 17.38 6.45 6.81 6,24 9.09 9,18 69.86 13 24.42 13 198 10 0.12 0.40 0.37 0.49 0.37 1.33 1.36 4.22 1,53 2.60 1.94 0.86 il 10 13 13 16 16 21 21 20 21 21 16 more, *U. S. Hydrographic Office, Sailing Directions for the Pacific Islands, H. O, Pub. No. 82, Vol, 1, Second Edition (1964}, updated to Dec, 3, 1970, Pwind data for Kwaialein. Precipitation data for Enewetak. for DNA,» estimated that there were on the other northern islands (KATE, approximately 7200 ya° of contaminated LUCY, MARY, NANCY, OLIVE, metal and concrete present on Enewetak URSULA, VERA, and WILMA), Atoll in December 1972. though none of them contains ground-zero AEC radiation even monitors accompanied the H&N crews in sites, and neither the aerial radiological order to identify the radioactive material. Survey nor the ground survey parties Table 224 shows the distribution of this detected this type of debris. debris on islands where this type of survey was conducted. On the southern islands, there were The amounts of four locations where radioactive scrap material listed should be taken only as material was found: e an approximate lower limit, particularly On the north end of ELMER (in the on islands such as PEARL, where very "C" level area of Fig. B.37.1.b in heavy underbrush prevented the survey Appendix II) there are several party from covering all parts of the pieces of scrap iron with activity island. levels above local background. In addition, it is conceivable that radioactive scrap material may be found In the central part of ELMER (the large "E" level area of Fig, B.39.1.b) a partially shielded °° co “Engineering Study for a Cleanup Plan, Enewetak Atoll- Marshall Islands, Holmes and Narver, Repts. HN-1348.1 source was found in a smail storage and HN-1348.2 (1973). building. I-36

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