Jes of washdown water were collected on the YAG 39 with a 7-in. fun- ‘gel which was fitted into a hole in the deck and connected by a long piece ‘ef tygon tubing to a collecting bottle just above the recorder room where ghe personnel were stationed. Radioactive washdowm weter was collected rting at U+1.2 hr. The rate of collection was apnroximately 200 ml/nr. f first 50 ml measured 10 r/hr at the surface of the container; it was uted and aliquoted for decay measurements, On U+1.4 days, the bottles YMG 39 were received at the field laboratory. Their average reading 69 + 5 mr/nr; the funnels measured 24+ 4 mrfnr. tles were sent to USNRDL. Six of the 12 TABLE 33 - Samples from Shot 3 tation Volume (m1) —— $-250.05 3250.05 §-250,97 §~250.07 1365 1822 1650 1065 Total Count at Gamma Beta 30.6 48.0 31.4 14.64 26.3 $2250.98 1020 35.7 9-251.02 1160 36.8 3~Coca Loca fe} b) 355 166 Description K+7,3 days (c/n x 1077) 53.1 3.33 Comments => Liquid and solid Buoy - Tc(4) 42.5 23.8 42.3 Liquid and solid Raft = TC Liquid and solid Raft = TC Liquid and solid Raft - TC 82.1 5033 Liquid and solid Liquid and solid 56.6 57.8 Liquid and solid Raft - TC TC 306) 74 bottle} Liquid and solid |TC (island) Project 2.5a total collector Project 2.4a triple bottle collector On the YAG 40, significant differences were found in the sampla collected on each side of the bridge. “onsiderable rain had fallen before the samples were recoverad, Bottles from the port side read 24 +3 ur/hr on U+4 days; the funnels averaged 6 +1 mr/nr; and the average water volime was 376 + 68 ml. Bottles from the starboard side read 28 + 8 mr/hr; the funnels averaged 10 + 3 mr/nr; and the liquid vol.me was 911 + 80 ml, On that day, the average total gamma count was 4.67 x 107 c/m per bottle for port side collectors ani 13.2 x 107 c/n per bottle for starboard collectors or 2.8 times as much activity for the collectors which had been directly exposed to the drifting fallout. In addition, on U-day wipe samples were taken from an F-84 which had flown through the cloud. These read as high as 35 r/hr at about U+6hr. The early decay of these wipe samples was much slower than that of the fallout collected on the YAG 39. Since considerable fractionation would be possible during contamination ami decontamina‘ion of the aircraft, these samples were not considered to be truly representative of the material in the cloud. Although these samples were given rather extensive treatment, only the data for iodine analysis will be reported, 31