Because existing overhead telephone cable facilities on this site were already overloaded by increased telephone requirements, and because a subsequent letter requested that separate cables be provided for intercommunication facilities, study was given to the materials available at the Jobsite to provide the required additional cable faci- lities. It was determined that surplus submarine telephone cable would be used and that ditching opened for this cable would also be used for the installation of additional submarine telephone cable for additional subscribers' loops. Plans were prepared, and this cable was installed in March 1951. The intercommunicating equipment was purchased in December 1950, shipped to the Jobsite, received, installed, tested, and put in operation by March of 1951. 5-245