h contamination from fallout on either UNION, YANKEB or NECTAR. Occasional operations in slightly contaminated water were conducted bat wibhout £11 effect on either chips or persomel, Some VP-29 aircraft received slight contesinotion in their post—ehet flichta, as did eome of the HER-362 hilicopters, Goth 37. Phe Boat Pool LOUs, end the two barges, ICV 9 and YC 10M, that were customarily moored cy anchored in Bikini Lagoon during shots were again contasinsted on URTOR and YANKER, fhe intensities after UNION averaged between 100 and 200 ur/hr, but the contanination wes particularly tenacious ani was not mterially rodiaced by salt water flishing. Repeated scrub-downs with strong solutions of deter gents ari lye ami wire brushing of “hot” spots brought the levals dom sufficiently to peralt operation of the craft on WiION plus three days, The intensities after YANKEES were anh higher, with average readings of abou 3 R/br ant acne as high as 7 B/nr. Initial decon~ tesination asasures reduced the levels to « 350 ar/hr average, tut thereafter intensive efforts reduced them only very alowly. Camlete deconteninstion at this tins would have required extensive rencval of the eurface pairt or rust with rotary powered wire brushes, Tiia was not attempteds the future employment of the craft made such an #xtensive operation unnecessary. contemplated. Further use of the tao barges was not By the tims they reeched Pesrl Harbor ander tow it was expected that the combined action of radioactive decay ani constent SECRET 5