contaminant expected in the typical harbor detonation, but not encountered on this operation, would cause a very difficult decontam{.- nation problem.? It is felt that the data obtained in CASTLE approximates this condition; however, these data should only be used as interim yardsticks in planning protective criteria and decontamie nation countermeasures for harbor installations, subject to subsequent verification, . At present work is being conducted to prepare simulants of contaminants resulting from nuclear detonations in harbors in order to conduct further laboratory studies on this problem.1° 13 . CONFIDENTIAL — RESTRICTED DATA

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