Aerial Survey
General Observations from
Radiation Contour Plots
(ALL values in Micro R/hr)
Island
oe
General level
Maximum level (Small patches)
DAVID (JAPTAN)
1 or less
ELMER (PARRY) *
1 or less except for
point sources
FRED (ENTWETOK) *
1 or less except for
point sources
BRUCE
4!
URSULA
3.5-6
LEROY
3.5-6
OLIVE
6-12
KATE
12-25
DAISY
|
"
-4-1.7 (center of island)
12-25 (center of island)
25-50
CLARA
25-50
ALICE
"25-50
BELLE
50-100
.
100-200
JANET (ENGEBI)
12-25
“TRENE
25-50
SALLY
3-12
YVONNE (RUNIT)
Very complex structure,
25-50 (NE corner)
:
50-100 (North side of crater)
12-25 (NW corner)
.
consistent with earlier
eround survey data which
suggest some areas as much
as 400-1000 Micro R/hr.
*Point sources (2 on FRED; 1 on ELMER) initially identified by aerial survey.
Ground reconnaissance determined these point sources to be (1) a small cobalt
60 source stored in locked building, (2) stack°of barrels of fly ash stored
in PACE drilling equipment warehouse, and (3) cobalt source in deteriorated
pig within dosimeter calibration facility.