e The Enewetak people advise that catchment rainwater is ‘the customary principal source of water for human consumption. Except in emergencies, water from underground lenses is not consumed. Samples of underground water were not obtained during the survey, and radiochemical analytical data on lens water is limited to that obtained from a few samples taken on JANET in 1971. A thorough lens water sampling, analysis, and assessment program requires sampling through a full rain-dry season cycle, 12 consecutive months at a minimum. being made. Arrangements for sampling fresh water lenses are This work will be done by AEC. o It is the opinion of the Task Group that the results of additional air sampling or lens water sampling probably would not significantly change the dose estimates in NVO-140 nor change the recommendations of this Task Group. . ' RADIATION CRITERIA RECOMMENDED BY THE TASK GROUP A review of the radiation protection standards and guides considered by the Task Group to be applicable to Enewetak is presented in Appendix III. This review indicates that the numerical standards and radiation protection philosophy of both national and international standards bodies are similar. Summarizing that appendix, the specific guidance and criteria used by the Task Group in its assessment of the data and recommended for cleanup and rehabilitation of the Atoll, are as follows: e The population dose to the Enewetak people should be kept to the minimum practicable level. e The Federal Radiation Council (FRC) Radiation Protection Guides (RPG) for individual and gonadal exposures are recommended as the criteria to be used in evaluating the various radiation exposure -4-