JOHNSTON ATOLL 01072 SCIENTIFIC Page 2 The station is air conditioned to 70°F (+ 4°) with 50 percent relative humidity. Film storage areas are cooled to 50°F (+ 5°) with 50 percent relative humidity. Power of 277/480 volt, 60 cycle, 3 phase is supplied from a 600 amp. bus duct. Further distribution is also made at 120/208 volt, 60 cycle, 3 phase power. FY 69 ENGINEERING Completed. Drawing: PROCUREMENT 91-3-17-M16 Completed. CONSTRUCTION The weather seals and related problems resulting from wind driven rain penetration of JOC Optical Station will be corrected as follows: Roof jacking stations will be elevated to level position and welded in place; diagonal rods will be installed to roof framing to eliminate racking; existing perimeter seal boots will be removed and replaced with flashings, glide seals, support hardware and appurtenances; all surplus jacking equipment and related piping will be moved back to the nearest pneumatic demand station. 1-67 VOLI April 1969