ere Seelam! ee” <t. any t i a - ~—Seeyy. L Reading Location mr/hr Bridge - Enclosed Observation room - deck 0.06 Steel deck 0,07 Compass cover ~ canvas 0.06 Upper bridge - Exposed Decking - wood 0. Exposed exterior surface of bridge - steel = forward 0,06 Deck - steel E. 0 DRINKING WATER Drinking water was loaded by each ship before departure from Tokyo ‘amd their supplies replenished following arrival at Rabaul. Half-liter samples of the original drinking water loaded at Tokyo, and, also, mixed Tokyo and Rabaul water samples from different tanks were collected. The analysis for gross beta radioactivity was conducted by Task Unit 6 of Task Group 7.1 at Eniwetok Proving Grounds. The results are as follows (see Tab D, Appendix III and IV): TAKUYO Tokyo water Tokyo and Rabaul water Gross Beta Activity dis/ minf_ nl 0.7 1.3 SATUMA Tokyo water Tokyo and Rabaul water 5.0 0.5 These results show no evidence of radioactive contamination. The preferred 30 day limit for beta activity in drinking water is 2,600 d/m/ml, and the acceptable 30 day limit is 70,000 d/m/ml. Neither ship was equipped with a distillation unit for evaporating sea water for drinking purposes. DOE ARCHIVE* 34