Figures 3 through 8 are detailed maps of the gamma background variations on all significant land areas of the atoll except Eneu (Figure 2) and the Dog-Easy-Fox-George Complex (Item 5) where these surveys are currently being completed. In all areas where elevated gamma background levels have been detected, soil samples were collected for determination of specific isotope concentration. These samples are currently being analyzed. As of August 7th the food sample collection program is essentially complete. USPHS personnel have collected samples of all available plant foods on the islands and University of Washington personnel have obtained samples of all available animal foods on the land surfaces as well as selected samples of sea foods in the lagoon. Information obtained from these samples, about radiation levels in foods, will be used for guidance to the Trust Territories Officials, but will have no affect on clean-up certification procedures.