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c:r: C,C, ~ - c: 2 f<~ $tatu:1. c.I (Jc.tf.le1. Plant jndalJ.ath.n The Southern California Edison Company telemetering instal- lation for Units A-5, A-6, and A-7 including transmission facilities from the Hayfield tie line was completed and placed in operation in November 1950. This system allows for greater flexibility of op- eration and centralized control as requested by the Edison Company, Some $390,000 were spent for improvements in Boulder City, This includes $105,000 on the new Junior-Senior High School build- ing and athletic field; $86, 000 for improving and expanding the water and electric distribution systems; $54,000 for extension of streets, sidewalks and sewers principally for accommodating a new private housing development; $28, 000 for completing work on 16 new houses and making improvements to and equipment in project oWned houses; $23,000 for a cooling system in the Municipal building; and the remainder on miscellaneous lesser items. The principal item of property retired was the emergency aerial transfer bus between generating units A-2 and N-7, origi- nally installed at a cost of $77,000 as a war-time emergency, no longer required, Transportation equipment, including a cruiser type boat, accounted for $35, 000 of retirements; and other retire- ments amounted to $47,000 for service equipment, such as office furniture, tools, shop and work equipment, air conditioning and sprinkler systems, residential and miscellaneous equipment. Construction on the three additional generating units was well under way at the close of the year and should be in production as scheduled unless the tightening supply situation of critical materials seriously retards the program, These units will complete the instal- lations designed for the Arizona wing of the powerhouse. A single contract for work relating to the .field installation of all three units was awarded to the Elliott and Gist Construction Co. This included concrete foundation work in the powerhouse, installation of turbines, and scroll cases and all control equipment for the units. The reloca- tion of existing transformer banks, additional transformer circuits and construction ci additional switchyard facilities were also included in this contract. A list of other major contracts on which work was being performed for manufacturing these units is as follows: