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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