ad The initial level on the flight deck was 44 mr/hr. Firehosing anid hand scrubbing reduced this to 12 mr/hr, an effectiveness of 68 percent when corrected for decay. In the washiow area, which included the superstructure, the average initial level was 4.9 mr/hr and the final level after decontamination (firehosing only) was 4.4 mr/hr. Since this reduction was equal to that which would have resulted from natural decay arc- coriing to the pte? law, it cannot be demonstrated at this time that the decontamination effort contributed any useful effect. Twenty men are employed on each ship andj a total of 170 manhours was expended. The contaminant resulting from the a FLATHEAD) was more s difficult to remove than that obtained from thes), but was less tenacious than that encountered cn some CASTLE shots, The decontamination procedures, other than the removal of the radiological protective ccating, were practicable ani effective and agreed closely with the results of similar operation performed in Operation CASTILE, Cominloe. bate RO 7 oF ws -npay mente 3 - 38 -