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Project 2.9 ~ Standard Recovery Procedure for the Tactical Decontamination of
Ships ~ F. S. Vine
PROCEDURE
LST-611 wes decontaminated on T+2 by the ship's force.
The firehosing-
handscrubbing procedure was used,
YAG-40 was decontaminated on T+2 and T+3.
ship's force.
Manpower was supplied by the
Two-man hot liquid jet lances (2) driven by a 6000 gal/hr
Sellers Injector were used on the superstructure and the non-washdown area
forward.
The remainder of the ship aft was decontaminated by firehosing and
handscrubbing with detergent.
YAG~39 was decontaminated on T+3 and T+5.
The interruption was occasioned
by technical recuirements of Project 2.71 which prohibited decontamination of
the non~washdown area prior to T+5,
Firehosing and heandscrurbing were used
throughout.
RESULTS
The contaminant wes particulate end similar to that resulting from the
ea:..:).
4+
It was not tenacious.
Shipboard radiation levels on arrival
at Eniwetok were appreciably higher than those encountered after previous
shot participations.
YAGs 39 and 40,
However, sicnificant contamination was found only on the
Average initial levels aboard both ships were approximately
500 mr/hr in the non-washdown areas and 75-100 mr/hr in the washdown areas.
Decontamination reduced these levels by a factor of ten.