for 12 hours after which they just disappeared below the 10° dilution. 
The acid wastes could never be traced deeper than 100 feet in water 
of 1.021 density. 
From this experience it appears improbable that bulk liquid 
wastes discharged at the surface will go deep. Even with densities 
of the order of magnitude of those of liquids, the mixing would be 
rapid enough to keep the waste near the depth of discharge. If wastes 
are discharged at the surface it is to be expected that they will stay 
in the photic zone and be subjected to all the biochemical shee 
To sum up the barging operation, the following phenomena can 
be expected to occur: 
a. Immediate mixing behind the barge. 
b. Development of waste concentrations in the diluting 
medium following the immediate mixing stage. 
c. A long term accumulation which would be of primey? 
concern in bulk disposal of radioactive wastes. ) 
Disposal as an Experiment. 
The surface waters may be the proper place to dispose of 
increasing amounts of waste. A real answer to whether or not bulk 
disposal can be accomplished is to try it at a safe and low level to 
get enough information to be sure of what is happenning. If limited 
amounts of liquid waste were released from a tanker or barge to 
surface waters, the wastes might enter the biological chain rapidly 
and could possibly be traced. If it is found that the activity 
levels were creeping up to 2% or 3% of what was permissible, then the 
dumping practice could be stopped or reduced to correct the situation. 
This type of bulk disposal amounts to a super tracer experiment. At 
(7) 
the same time it disposes of a quantity of wastes. 
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