CHAPTER I!, SECTION 3
area, 129 feet long, varying in width at the top
from 10 to 42 feet, and 10 feet wide on the bottom. The depth varied from 7 feet at the narrow
end to 27 feet at the wide end. The excavations
were backfilled with select material simultaneously with the placing of User-furnished drums
throughout the material.
The excavations indicated were the required
minimum, but they were not necessarily limited
to those dimensions. All portions of the excavation below the 3-foot depth were in water at
maximum high tide. All drums were recoverea
for the User after the events.
STATION:
201
SITE:
Yvonne
USER:
DOD/GM/CWL
PURPOSE:
Balloon to Support
Detectors
PARTICIPATION: 1, 15
DESIGN PSI:
None
CONSTRUCTION: 7-20-58/7-27-58
A User-furnished balloon, Station 201, flown
PARTICIPATION: 1
DESIGN PSI:
None
CONSTRUCTION: 7-19-58/8-6-58
Concrete blocks, 10x10 inches by 2 inches,
and 200 sandbags were provided as this series
of stations.
STATIONS:
210.01 through .12
SITE:
Yvonne
USER:
DOD/CWL
PURPOSE:
Aeriai Survey Markers
PARTICIPATION: 210.01 - .08, 44;
210.04 - .06, 43;
210.01 -.12, 1 and 15
DESIGN PSI:
None
CONSTRUCTION: 7-19-58, 7-24-58
Installed vertically, each station was a rein-
forced concrete cross, 6x6-foot overall and 6x10
inches in cross-section of the arms.
at an altitude of 1500 feet, was used to support
STATIONS:
211.01 through .36
SITE:
Yvonne
3 feet on a side and four concrete deadmen 344
feet on a side. A standard trailer receptacle, con-
USER:
DOD/CWL
PURPOSE:
Neutron, Thermal, and
Gamma Detectors
detectors and Stations 211.01 through .36. The
balloon was moored from two concrete deadmen
nected to the lighting panel in Station 15, provided 5-kw of 110-volt power on the ground
under the balloon.
STATIONS:
2038.01 and .02
SITE:
Yvonne
USER:
DOD, CWL
PURPOSE:
. Station 203.01, Probe, and
Station 203.02, Probe
Winch
PARTICIPATION: 1, 15
DESIGN PSI:
None
CONSTRUCTION: 7-19-58/8-6-58
Station 203.01 was User-furnished and installed.
Station 203.02 was a 4-inch-thick concrete
slab, 4x4 feet, with two projecting 44-inch anchor
bolts for mounting a User-furnished winch. For
this station 100 sandbags were furnished.
STATIONS:
204.01 through .50
SITE:
Yvonne
USER:
DOD/CWL
PURPOSE:
Fall-out Collectors
‘age 84
Suspended from Balloon
PARTICIPATION: 1
DESIGN PST:
None
CONSTRUCTION:
7-24-58/7-24-58
A cable suspended from balloon Station 201,
was used for mounting numerous detectors at
various heights and for positioning a ring 400
feet above the ground. To tie the cable down,
100 sandbags were provided.
STATION:
231
SITE:
Elmer
USER:
DOD/NRDL
PURPOSE:
Source Trailer
PARTICIPATION: None
DESIGN PSI:
None
CONSTRUCTION: 4-8-58/4-26-58
The station consisted of a User-furnished
trailer located near the ocean shore south of
Building 218. A barbed wire fence enclosed the
trailer in a 30-foot-minimum-width yard which
extended to the low water line.