CINCPAC FILE FF1-1 Aba3 Ser 001355 - 31 Oct 1953 present least concern since they sre situated in a votentially safo ragion. (®) - Endiwetok and Biicini (shot situs) are the only populated atolls inside the dinger are@. Units assigned JTF 7 will be tus only forces operating inside the danger arse. Since tho safety of JTF 7 and the shot sitca is the responsibility of CJTF 7, cloud tracking within the dangor erca will not provide information useful to CIYCPACFLT in tne discharge of his responsibilities for the safuty of other units ind populated islands of the Pacific. b. CIICPACPLT coneurs in the plin to sample drinking water only if required by radiological conditions (proposal in subparagraph 2¢(2) above A sampling program of th. degree mounted for IVY is act considered necss— eary for CaSTLé. c. In the formiction of radsafe necgures for CASTLE, every effort should be made to eliminate the necessity for evacuation of native populations. The temporary evacuation of Ujelang by a PACFLT vessel dur~ ing IVY was implemented by CINCPACFLT upon the advice of CUTF 132. In reference (d), CJTP 132 Soncluded that the existence of a health hazard at Ujelang was a possibility and recommended provision of an evacuation capability. During a preliminary survey of Ujelang to study the situation and aske plans, the capability for evacuating natives on short notice was concluded to be impracticable, and @ planned orderly evacu- ation was considered to be the only logical solution. The decision to evacuate Ujalang wes predicated not only on ruducing health hazards to the indigenes to an acceptable ainimim, but also to protect than rroa possible radiation hasards beyond the shadow of any adverse reflacticons on the U. S$. Government. From the proposals and conclusions in the CASTLE RndSafe Plan (subparagraphs 22(3), 2b(2), and 26(3) above, it is apparent that IVY technical end oporaticnal expericnce indicstes real- detde planning may be based on the promise that no significant hoaltn hasards will, exist in Ujalang or other populatod atolls. Accordingly, it is considered that planning in this rospuct should include the following basie preuisos: (1) ‘The decision to shoot should be reached with the under standing that no health hazard to units and populated islands of the Pacifie or radssfe conditions conducive to possible advorse criticisa will onsue. (2) CUTF 7 advisorias on appropriate safuty precautions inci- (3) In tho remote circumstance that extrame postesnct conditions dent to CaSTLE will not contain conclusions requiring evacuation of pop’ ulated islands. develop a necessity for the tampormry svecuction of any popul.ted isionc - Cc -%