The Records Service Center, which was established in 1949, has expanded its facili- ties. The addition of a vault became a necessity by the Fall of 1950, to meet security requirements for the storage of classified records. The vault completed in March 1951, now contains 766 cubic feet of classified records. Since July 1950, SFO records personnel have visited AEC field offices and contractor offices to arrange for the retirement and disposal of terminated contract records and other inactive AEC records. As aresult, 911 cubic feet of terminated contract records and 429 cubic feet of Personnel Security files have been stored at the Records Service Center. total floor space for storage of records is now approximately 3, 903 squarefeet. The During the past three years, 7,342 cubic feet of both classified and unclassified records have been received at the Records Service Center, 3,468 cubic feet of which have been destroyed. This leaves an amount of 3, 874 cubic feet accumulated during this time. Tangible savings resulting from the retirement and disposal of these records are: $153,531 for filing equipment released for re-use and $12, 844 rental cost for office space released for re-use, The centralized service provided by the Records Service Center has been of eminent value to SFO officials requiring historical and investigational information, even going back into Manhattan Engineer District days. Prompt availability of any retired record from the Service Center has encouraged the use of this facility for retirement of important records of AEC and Contractor organizations under SFO jurisdiction. There have been 22, 138 reference requests serviced by the Service Center since July 1950. 23. ENGINEERING AND CONSTRUCTION The magnitude of the construction job in providing the vastly expanded plant facility structure has been accentuated throughout this report. It is emphasized by the accompany- ing statistical summary which shows, year by year throughout the last six years, a cost comparison of the increasing programs. Inheriting from MED on July 1, 1947, fixed assets totaling $41, 737, 987 including $41, 483, 518 in completed facilities and $254, 468 in construction work in progress, 5FO has built up to a total of $471, 415, 104 in completed plant and $48, 048, 245 in work in progress, as of June 30, 1953—roughly a ten-fold increase. As shown on the chart, the peak of construction activities was reached during 1952- 1953, with $147, 350, 702 plant completed in 1953. Outstanding construction during the period included construction of facilities at Pantex, Rocky Flats, Cryogenics Laboratory, Pacific and Nevada Proving Grounds, and expansion of facilities atSandia Laboratory, LASL, and Burlington. -Major construction yet to be accomplished includes the Spoon River Plant, completion of LASL technical facilities, and Los Alamos permanent housing facilities. ’ As the construction peak activities have declined during the period, there ALOO a corresponding decline from 64 SFOO personnel in the Office of Engineering and Construction as of June 30, 1950, to.21 employees as of June 30, 1953. The Director of the Office of Engineering and Construction directs SFO staff supervisory activities relating to real estate, 18 ITE ALL. mest anmeniaiy 13