red .

UNCLASSeg
I.

eeSENT

RCGELAP AND ALLINGNAE (CCQUT'D)
*

,

C
Handbock 52 for lifstizs consunptions Tre Utirik eammles varied fron 1cO

to 1000 tines the accepted tolerancere These datz indicstte the necess { tuy
for thorousn cleaning of the cisterns defor re!ling fcr genersl
consunpticn,
:
e

©

Existing conditicns zade Lt inorgctical to attenpt any assay for tha

plutenius activity, which my be of iipertance in these sanples,
36

DCSE PaTeEs

ed

gc

All oftherenaint.ng
to Rengelap atoll,

On Ronzelao Island, 2t the standard positicn established br Secvilie
the reading at 0930 hours on 21 Aprnilwa6 17 mr/hr. This nezsuresent
these =ade on LL and 26 March fit a desty formula 169¢-1,525 r/day (tb in

days after 1 March) within abcut 3%,

Cn 22 April readings wera rade cn other Rongel2p atoll Islends as follow
ISLAD

Tiaetck

AVE, ©

MAX.

32 ur/nr

DECAY EXPCUENT

34 ar/hr

lib

2 stks-100 yds beach, just

“1.46

north at westem seningesl ,

e

Busch

17 ar/hr

21 ar/br

Enizelo

20 uwfhr

----—--

STARE LCCAT INS

1 stk-50 zds beach, ce

of path in south grove

(no pricr datv2)

1 stk-scuth end of islind
w
"3
ww

With reascnadle precisicn, these readings (ana that on Sifs Islin¢)

neted on Parry Island during the

z

Q)

73
a
ct

S
Mm

a

ti id

§5

{a
ws
ty of
“a a
cy
6

¢

5

rr wou
oO
) ty

wm

"1

iw
oan.
ct

+

bi

“4

at
Fe ta
we

0a

oO

3 2 ”

32

and en 2irt, were excel
Corntentnatio
slopes, where the c
excess cof that st cone,
grvumi at seme distenc

Se Oe,

dy

wu

cy
-

iu
Ura,
ard
Bw

ye
J
F

aa

Ta
oO

ae

qe

iu ae
so
wn
mr

w

Ww

3
re

(*

qo

~~

wo
as
ao @ 4
eM
aw
t+ "1 28 —~og

me
te

4

aa
Oo

4
40
w
NW
ta
“s

wx

QQ

1. (a SY

rer

2

tuts thas had few

¢

may (a sintlar shen=

enncuse Operation),

No excepticnal s

&

i}

“an more distent gravel, 2

redfoactive particles tnat Landed cn the

had been svect into the neirty eri lL by the :

questicn was met

) oO
fLrry,

¢t reading cn the bor

se

§

about 13 ar/hr, w25 consistent! y! cgher

15 ar/nr, as though the

survey, “has ene r

lower than cver grass
the roofless church Zz

cf

reading of abcut § ar/her, while the ¢

rning tc the status

10 cr HS

*t

7

rey

Island, it w3s noted, as om Vane 23 Ma
areas (2bout 1§ ar/ir) wers cansiste
20 ar/hr), The sxcoth emerete fle

390 te ao

om

wv a

4, DISTRISUTION CF CONTAMINATICN:

«te
‘:

related to previous observations by the sane decay exponent,

Select target paragraph3