Radio Station

290

160

Weather Station (N end of island) 280
Proj 6,6.Station (S end of island) 240

110
--

In order to estimate the rate of decay between 8 and 11 March, the follow

ing radiation measurements were taken o three days on Rongelap Island:

March
Central living areca (village)

280 or/hr

Roof of cistern (Southern most)

240 mr/hr

Southern most cistern

Ground (contact) cistern arca

March
176 or/nr

220 or/hr

145 or/pr

220 orfnr

110 or

1,0 ‘imr/nr

An area was selectcd 30 yards inland from the Rongelap cemetcry as a mas
ing point for future decay measurements, This arca is outlined with 2X%4s plac

on pails, The waist height reading was 210 or/hr at 1000 hours, 11 March 1954
7-

arcas.

Sample collections

Water samples were collected from the water supplics of all inhabitec

About two quarts of watcr wore transferred to a polycthlenc bottle at

each site,
analysis,

These will be turned over to the New York Opcrations Office{AEC SF

Soil samples wore collected at all inhabited arcas and also at severe

uninhabited
islands, In collecting tho soil samples a one foot by one foot
square was mar@don the ground and soil to about ono inch of depth was remover

from the square and transferred to a cardboard container.

The primary sample:

will be turned over to the New York Operation Office, ASC, for analysis, and
some smaller samplos will bo analyzed by Program 2 of TU 13.

Listed in Table 3 are the samples taken with the dose rato measured. .
at waist hcight at the location where they were talon.
TABLE 3 — SOIL
Samplo No.

Atoll

Island

if

Rongelap

Rongelap (North end)

3

Rongelap

Rongelap (1 mile north of

4

Rongelap

5*

Rongefap

Rongelap (near South cistern
of village)
Eriirippu

Utirik

Utirik

Rongerik
Ailinginae

Eniwetak
Sifo

2

6
T*

Rongelap
Rongelap

9

Bikar

8%

10
uu

“ig

Rongelap

Rongelap (Center of village)

Bikar

ur/ir

8 Mar

440

6 Mar

340

8 Mar

village)

Eniaetok
Kabelle

Date

-

280

.
8 Mar
8 Mar

220
2200

8 Mar
8 Mar

900
2000

9 Mar

40

9 Mar

160

10 bar
10 Mar

*Small additional sample taken for analysis by Program 2

280
100
.

x

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