indjvidual, or 250 mrem in any one year and eighty per cent of the 30 year exposure value, or 4000 mrem over 30 years. Several different scenarios and living patterns and conditions were examined assuming that people would be living on Enjebi: Potential Exposure(mrem) Living Pattern a. Local and imported food consumed Coconuts only from southern islands Years to Meet FRC Guidance 300 0 No imported food available Coconuts only from southern islands 560 10-15 c. Local and imported food consumed Coconuts only from Enjebi 975 35-40 d. Local and imported food consumed Coconuts from Enjebi to Billae 900 30-35 e. No imported food available Coconuts only from Enjebi 2000 65-70 £. No imported food available Coconuts from Enjebi to Billae 1860 60-65 b. (The assumptions underlying these estimates are identified in the LLL preliminary report and should be recalled, e.g., time spent on islands other than Enjebi, coconuts consumed from other islands, etc.) If the AEC recommendations are applied, the time intervals increase by about 30 years. For example, category "c" above would be about 65-70 years, category "d" would be 60-65 years, category "e" would be about 95-100 years, and category "f" would be about 90-95 years. Presumably this decision was based at least in part upon our letter to you of September 28, 1979, in which we estimated the potential additional radiation exposure to people assumed to live on Enewetak,