OPERATIONS PLAN MISSIONS FY 1979 NOS. 4 & 5 ENEWETAK ATOLL AND BIKINI ATOLL BACKGROUND AND PURPOSE Lawrence Livermore Laboratory (LLL) has DOE-sponsored programs in the Marshall Islands involving the sampling, measurement, and cycling characteristics of radionuclides in soil, water and biota. These investigations are aimed at producing results which will better enable the United States Government to rehabilitate Marshall Island Atolls for the safe use by their former residents. DESCRIPTION OF MISSION A. Mission No. 4 - Enewetak WW ht bh 6 Supported by DOE Research Vessel Liktanur II to: . Sample groundwater from Enjebi and Runit. Take lagoon water and sediment samples. Work on the Enjebi (Janet) test plots and farm, Repair equipment and upgrade continuing experiments to determine rainfall, evaporation, rates, soil column moisture and incident radiation. 5. Collect samples on Belle (Bokombako), Daisy (Louj), Irene (Boken), Sally (Aomon), and Tilda (Bijire), as part of a continuing time dependent study. Mission No. 5 - Bikini Supported by DOE Research Vessel Liktanur II to: Mow & Sh B. . Sample groundwater on Bikini and Eneu. Take lagoon samples. Perform test plot studies on Eneu Farm. Repair equipment and upgrade experiments. Collect samples on Bikini and Eneu as part of continuing time dependent study. oO if. Perform radionuclide cycling studies.