CHAPTER II, SECTION 1 Such active inspection was deterrent to careless workmanship, since it was backed by management and respected by supervision. One of the Inspection Department’s functions was to be a reporting agency to the superintendent, who rectified unsatisfactory conditions directly and promptly. Authority to correct deviations from plans and specifications was not, however, limited to this level because, if conditions warranted, the Resident Inspector could refer a matter through the Chief Inspector to the Resident Engineer, who would then investigate and recommend action to be taken by the Resident Manager. Safety inspection was assigned to all Field Inspectors as an additional responsibility. The SURVEY. Surveys at the Pacific Proving Ground were initiated at Eniwetok Atoll in 1949 and expanded to include Bikini Atoll in 1952. Activities have followed the same pattern at both atolls and included the establishment of hori- zontal and vertical control networks, topogra- phic and hydrographic mapping, construction layouts, and special surveys to satisfy scientific requirements and provide assistance to Users. The survey of both Bikini and Eniwetok Atolls is recorded in the Completion Reports for Oper- ations GREENHOUSE, IVY, and CASTLE. The following is primarily a description of survey activities during Operation REDWING. Safety Engineer gave all Inspectors a series of HORIZONTAL ATOLL. also provided various types of manuals, espe- The horizontal control scheme consists of a primary network of second order triangulation stations supplemented with third order lectures defining required safety standards, operating practices, and working conditions. He cially in regard to safety practices in construction, vehicles, and job hazards. Jobsite procedure provided that Inspectors could hold up work on a project if unsafe practices were involved until the conditions were rectified. With work in progress at so many sites and locations, it was necessary to establish detailed standard procedures in regard to reporting, and these included the following: (1) ‘Weekly Progress Work Sheets.”’ sum- marizing the week’s activities by work order with the current percentage of completion for incorporation in the ‘Weekly Progress Report” by the Re- ports Section. (2) “Concrete Placement Approval.” which notified the site superintendent that the inspector had checked and approved form work and embedded items prior to a concrete pour. (3) “Concrete Pour Data,” which gave all pertinent information concerning a concrete pour as it was accomplished, and which was for the use of the Test Laboratory and for future investiga- tion if cylinder breaks or structural failure should occur. (4) “Weekly Inspection Report,” which was prepared by the Inspector for each scientific station and other large facilities. (5) Special reports to cover tests and un- usual conditions were submitted when warranted. Such reports included op- erating tests for tower elevators, me- chanical and electrical facilities in scientific stations, pile driving, earth compaction, ete. Page 2-8 CONTROL - ENIWETOK stations at locations of lesser importance. The original scheme, established in 1949-50 and expanded in 1951 and 1952 to include the entire atoll, utilized some of the earlier surveys con- ducted by Joint Task Force SEVEN and the USS Bowditch. Since the CASTLE Operation destroyed portions of the primary network, new stations were established as required by expanding the remaining portions of the network. Two new stations were established at the north end of the Atoll; at Alice (triangulation station Alice), and another at Gene (triangulation station Gene), for the use in tieing Scientific Stations 10, 12 and 23 into the primary network. One new station was established at Yvonne for use in the location of Scientific Stations 6, 7, 24, 1524, 1590, 1811, 1812 and 1813, all of which required a high degre: of accuracy in their location. A station was also established on coral head Mack for use in determining, with second order accuracy, the lo- cation of the 75’ photo tower, Station 1514. Fig. 2-11 shows the Horizontal Control Network for Eniwetok Atoll and Table 2-1 lists the Hori- zontal Control Stations. HORIZONTAL CONTROL - BIKINI ATOLL. The horizontal control scheme at Bikini Atoll was essentially the same as that established in Eniwetok Atoll. Requirements included a primary network of second order accuracy according to specifications established by the U. S. Coast and Geodetic Survey, supplemented by third order stations in locations of lesser importance. Previous surveys of Bikini Atoll consisted of Chart 6032 published in 1944 by the U.S. Hydrographic Office, and adjusted data of third order surveys completed in 1946 by the USS Sumner and USS Bowditch. Certain portions of the 1946 survey were tied into the