aes SECTION IX COST ESTIMATE SCOPE: The estimates presented for work under Phases I, II and IIT cover facilities as recommended in this Revort and summarized in Section VIII. These estimates include all anticipated expenditures in connection with engineering and construction, except the Architect-Engineer-Construction=Management (AECM) fee. The estimates for Phase IV and V are developed to include all AERCM costs based on operation under the assumptions listed below. Basis of time schedule is: Phase IV=£A, Experiment Dec. 1950 through March 1951 Phase April 1951 through Dec. 1952 V-A, Roll-up Phase IV-B, Experiment Jan. 1953 through April 1953 Phase May 1953 through Aug. 1953 V-B, Roll=up It is assumed that during Phase IV, the Los Alamos Laboratory will statien not over 250 people in the camp on Parry and on the shot islands and that the ACM contractor will assign 100 mechanics and helpers to work under their direction. In addition, approximately 250 others will be required to operate the utilities and facilities. During Phase IV, A and B, the additional services. furnished include purchase, preparation and serving of food; operation and housekeeping of rooms, offices, etc.; medical, laundry, barber, sales store and recreation services; maintenance and operation of utilities, including telephone operators; local air, water and motor transportation for personnel and supplies; light stevedoring and warehousing of "Laboratory" supplies; fire protection. During Phase V, A and B, the services furnished include stationing a xX-1