ws decontagination. - The above-described procedures reduced this to 20 ar/br, an effectiveness of 92 percent when corrected for decay. In the washdown erea, which included the superstructure, the initial level wae 115 mr/fhr. Polliowing decontamination the level vas 13 ar/hr, an effectiveness of 78 vercent when corrected for decey. This is in apree- ment with results obtained in operation CASTLE which showed decreased ar sontamination effectiveness following washdovn. The working carty of 45 men was divided into 5 & 6 san tears and exrended e total of o-proximtely 15 vorking hours in the decontamin: tinn of the two shins. cl It im feasitle to decontaminate a ahi-. Ly mcens of the -rocedures described herein, The effectivenesses re-orted are srobsbly higher than would be obtained in the removal of a more tenacious contasinant,. REST AVAILABLE COPY an! - 56 -

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