samples will be analyzed for 905 chemical methods. STs, and the transuranics by wet These are the principal cose contributing radionuclides in the marine pathway at Enewetak and Bikini. On inhabited islands, available freshwater supplies (cisterns of ground water) will be sampled for radionuclide analysis. Conductivity measure- ments will be made to assess the freshness of the water supply, and coliform analysis will be performed in the field and health officials will be advised if any water is found with high concentrations of bacteria. Analytical processing and analysis All ‘terrestrial and marine samples will be processed at LLL for analysis. Radionuclide concentrations will be assessed using appropriate methods of detections which will include alpha, beta and gamma counting systems. A large fraction of the radioanalytical work will be conducted at LLL; but because the large number of samples requiring analysis will overload the LLL laboratories facilities, it will be necessary to send some samples to off-site laboratories on DOE contract for analysis. A rigorous quality control program will be integrated into the radionalytical effort. The quality control program will be managed by LLL and a sufficient number of blanks, standards and duplicates, will be prepared and distributed to all participating laboratories to assess and maintain the quality of the data generated by the participants. As a minimum, data will be generated to 90 13745 assess the levels of Sr, and the transuranics. These radionuclides are > the principal dose contributing radionuclides expected in all food products collected from the atolls. Approximately 7000 soil, vegetation, and terrestrial organisms and 1800 fish organs and tissues, marine invertebrates, sediments, and water samples will be processed and analyzed for the above listed radionuclides during the program. The analytical program costs are based ILI~13