SECTION I pénuities under applioable Pideral cows.” INTRODUCTION AUTHORITY FOR REPORT: By a letter from Mr. Carroll L. Tyler, itanager Santa Fe Directed Operations, U. S. Atamic Energy Commission, to iolmes and Narver, dated September 16, 1948, this firm was authorized to make a preliminary reconnaissance and study of the proving ground site at Eniwetok Atoll for the purpose of determining such information as is necessary to formulate a construction program, recommend types of construction, prepare cost estimates and submit a comprehensive report of our findings. Authority for the basic functional criteria, such as population, radiology, date of tests, demand utility loads, and geographical distribution of various proving ground functions, derives from a series of conferences between representatives of Holmes and Narver, and J Division of the Los Alamos Laboratory, presided over by Dr. Alvin C. Graves during the week of November 15, 1948. PURPOSE OF REPORT: The purpose of this Report is an engineering analysis of design problems and construction problems involved in utilities am structures necessary for a proposed Atomic Energy Proving Ground at Eniwetok Atoll in the Marshall Islands. This Report will not undertake the scientific or experimental aspects of such a Proving Ground, but will analyze certain of the facilities necessary for such experiments, as well as a proposed schedule for accomplishing and op= erating such facilities. It is intended as a forecast of probable scope of work as a basis for which logistic scheduling can be accomplished, and approx=imate estimates of cost for budgeting purposes can be prepared. It may also constitute a framework for the formlating of policy and drawing of contracts for actual accomplishment.