CHAPTER li, SECTION 5 Figure 2-109. Station 1203 - Completed - Aerial View rains and sunshine, the timbers did warp considerably. This was partially corrected by staggering the clips and increasing the size of some of the horizontal wood frames. To maintain the alignment tolerances required additional check- ing by the surveyors as noted in Section 1A of this chapter. Figure 2-109 notes Station 1203 completed. This aerial view was taken over the Baker-Charlie Reef looking towards Station 1200. Other details for Station 1203 are shown in figures for Stations 30, 1200, 1201, 1202 and TANT AN 1204. Ve. STATIONS 1204.01 - 1204.03 PUMP STATIONS - SITE CHARLIE USER: UCRL GENERAL. These Stations were the permanent pumping Stations for holding the pipe array (Station 1203) under a pressure of 1 cm. Hg. absolute or less. Only one Station (Station 1204.03) was constructed and it contained six 5HP vacuum pumps permanently located on 5’-0" x 4’ x 0” x 6” thick reinforced concrete pads. An auxiliary manifold was provided for connecting an additional four portable vacuum pumps. Salt water was used to cool the vacuum pumps. Figure 2-110 shows the pumps installed and the status of work as 705 completed on 4 December. ENGINEERING.Thecriteria were received on 30 April 1953. The mechanical drawing was started on 25 May, was submitted on 24 June and approved on 21 July. The structural work was started on 5 October, submitted on 7 October and approved on 15 October. CONSTRUCTION. Work was scheduled to commence on 1 October and to be completed by 31 January. Actual construction work wasstarted on 2 November and was compieted on 30 November. STATION 1210-RECORDING STATION SITE DOG - USER: LASL GENERAL. The Station, used for reaction history, was an earth reinforced concrete building containing two main rooms, 12’- 8” x 34’- 8” and 25° - 2” x 28’-6". The entire building was supported on a slab 4’-0” thick. Three exterior walls and the roof slah were 7’ -0” thick. The side wail of the larger room, and adjacent to the doors, was 7’-0” thick while the remaining two. walls of this room and roof slab were 4’-0” thick. There was a reinforced concrete boxed passageway which made two right angle turns before coming out of the earth fill at a point 30 feet from the building side wall. At the exit and at the passageway entrance there was a lead blast type door with a two-ton chain hoist. The entire building was covered with a sloping earth fill to a height of seven feet above the highest building point. MECHANICAL. The mechanical features included a dehumidification system similar to that Page 2-114 a _—— |