yo ene rome vam. oe . Office Memorandum * TO : K. BE. Melde, General Manager FaOM : SUBJECT: UNITED STATES GOVERNMENT pata. August 5, 1957 PrtBE 2 C. L. Dunhan, M 2., parector (\“4 Division cf Biology and Medic nee RADIATION LEVELS Oh RONGELAF TS "LAN In our Steff Faper AEC 125/30, date; February 6, 1957 concerning the returr. of the Rongelapese to their home island, we predicted ".~ —- ~ It is cifficult te extrapolate precisely far into the future, but the deta suggest that the gamms doses on Rongelap Island would not greatly exceec (if at all: | ‘ roentgens for the first year of On June 2‘, .957, just prior tc *ne actual return of the Rongelapese, reoccupancy, with lesser doses in *ibsecuent years, - - —" a radiological survey was made o* the gamma levels on Rongelap Island. These date were attached in the ‘orn of a memorandum with accompanying maps from Mr. Ernest Wynkoop t: Dr. Gordon M. Dunning. You will note that the average gamma dose rste or the Island on Jume 25, 1957 was about ©. aiiliroentgere ;=: ‘cur {0,26 roentgene per year). You may wish t> transmit thie ‘nrornation to Dr. Libby, since he has manifestec keer interest tr crece matters. Enclosure: {7 1. Meme to cordon M. Dunning, OFM fr Ernest Wynkoop, Chf. Eniwetok Br., Test Div., EPG, dtd 6/27/57 sul . | yamma Radiologica: Anaaetok Telardis “rva,x of Rongelap and 2 thru” Mar. | +ieeetergemtn we DOE. AR [326 vs oF RUE RG” RG COMMISSION | Colle tine atasian Box. ; £¢%3.. Folderuvssion ot paketelisa [3

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