sane JOHNSTON ATOLL SCIENTIFIC 01084 Page 3 CONSTRUCTION An additional 5-ton explosion proof hoist, with a 40-ft. hook height, will be installed on the existing monorail in the high bay area. This hoist along with the existing hoist will be used together with an appropriate spreader bar to give a 10-ton lifting capability. The existing 16-ft. wide x 12-ft. high door in the high bay will be enlarged to 16-ft. wide x 35-ft. high. Alcove 103 will be closed off from the assembly area (Room 101) by means of a partition. Room 105 will be converted into a guard station with a door provided between Alcove 103 and Room 105. An alarm system will be provided which will be activiated at preset levels to change the ventilation system to "once through operation,’ sound evacuation alarms and will open the high bay material access door. A security fence will be installed com- pletely enclosing the building and the surrounding protective berms. A guard shack will be constructed inside the fence near the vehicle gate. Area security lighting will be installed and emergency back up power will be provided. All modifications will be nonconflicting to the presently planned AMICOM use of the building. The FOD for these modifications is September 1970. 1-75 Sites | VOL I April 1909