“ DRAFT | was to be a rather large scale effort to sample the soil and vegetation ‘to evaluate the potential dose via the terrestiral pathway. It was felt that this was an especially important goal in view of the significance “of the foodchains' contribution to the total dose measured at Enewetak Atoll (1). For a number of reasons, the scale of the program had to be reduced “from that originally planned. The manpower and support were reduced and the aerial survey was deleted, leaving the entire program for measuring the external dose levels on Bikini and Eneu Islands to be accomplished by ground crews (2). The primary emphasis of this reduced effort was toward the external gamma measurements of Bikini and Eneu Islands. Although the sampling of the foodchain pathways was more Jimited than we had hoped, a smaller scale program designed to help assess the potential dose via ingestion pathways was maintained. The 1975 Bikini survey was finally conducted with the help of 20 people (see acknowledgment) and the support of the ERDA boat - LCU R.V. Liktanur from June 16 through June 24, 1975. The basic plans for the 1975 Bikini survey are outlined below: Bikini Soil and Gamma Exposure Rate Survey Program Purpose: Gamma-Exposure Rate Survey The gamma-ray exposure measurement program conducted on the ground "was designed to provide a detailed examination of the geographical variability of the exposure rates on Bikini and Eneu Islands, and overal] Verification of exposure rate measurements made during previous visits. Methods and Measurements The program utilized the Baird-Atomic scintillation detector which consists of a 2.5-cm-diam x 3.9-cm-long Nal crystal with ratemeter readout. a