Feros Commanding Officer

To:

Vie:

;

Chief of Naval Operations

7

(1) Commander Task Group 7,3

(2) Commander Joint Task Forse SEVER

Subj: U.S.Sp BATROKO (CVE-115)) radiologiosh contemination of
1. cdout 0600-K on 1 Maret 1954 this ship received a heavy

out

of

contaminated coral partislee following the detonation of an atasle device

miles

133°T from the shot site. The BLIROEO was in the process of

launching five (5) helicopters at the time the fall-out wae reecived and

the washdows equipment was layod cut in the catwalks2 One helicopter ws

in the air but was imediately recalled and lanied, The first warning of
fall-out was the report of approximately one (1) roentgen per hour ax the

flight deck, The order to set Material Condition .JLE was given at the
first indication of fall-out and all ventilation, including ventilation -to
the
room spaces was shut dow: and
;
4

two (2) hours. This prevented contamination of real consequence of any
spaces bclow the hangar deck, the engineering spaces rising to anly eight
(8) milli roentgens per hour, gamma only. The waek-dow equipnent we

coral sand deposited on the flight deck, catwalks, island structure, fore=

castle and fantail.
ration of the wish-dow: equipment was continued
for approximately two (2) hours and then secured. Monitoring of the flight

deck at this tine gave readings as high as five (5)

per hour in

many of the crouse deck gutters

per hour was recorded in the flight deck drain on the starboard cide aft.
Fire hoses were then broken cut and us
tie remainder of the day. The fire hoses proved to be mich supericr

washing away the conparativaly large particles of coral sand

:

§

5

f

i

a

;

,

received and it was possible to reduce tho flight deck count to approxi-

mately twoehundred (200) milli roent

2. & second fall-out was received starting at about 1600-4.

cut was composed of wory fine particles and increased the scunt on the

flight deck and bridge to between two-hundred (200) and four-hundred (400)
milli roentgens per hour, gamma only, The fire hoses were again used on
the flight deck, forecastle and fantailand bridge structure until about

1éL54{ when the Task Unit 7.1 radiological personnel recommended sending

INCLOSURE 2

K-55-IV(be})

~~

Select target paragraph3