DESCRIPTIONOF DoS stor lL. - The epitical shct phase of Nadsafe cperations will begin on or avout C-§ days, Prior to this time seliminary planning will have incluied sich arrangements as those for the ;«.eipt of coded Nadsafe data on the ectatoll and the etomic cloud, wide area iiadeafe flights and fixed station dvia, details of the heavy nuclide sampling, and 5 tion of charts _ ~1 the Radsafe OFFICE for the display of pertinent Information, Orinking water samples will have been taken from the weather islands (and at quer ciher locations ae possible) for background count and to evaluate fall-out ia these areas, Administrative arrangements will have beon made to record t.13 events during the shot phase for historical purposes. Special require mts of projects or unite will have been assembled for use in briefings c> in providing required services. Special instructions will have been isoued relative to alert and evacuation of ENIWETOK atoll following SIKDT sncts. Task force rehearsals will have been ccmpleted and the varicus functions of the office will have ecmmlsted exercising all. circuits to be used, including the transmission and reception of drill messages, Dut 1. Om or about D=§ days, CJT? SEVEN, upon consideration of the weather and technical aspects will announce that the shot will be turned on. This action is the tasie decision upon which the tizing of many task force actions, ineluding Radsafe, depend, CINCPACELT, ¢/S, USA ani Chairman, «EC. Will be notified that a shot is proposed in five days ant “4st hour, These advisories (as well ae subsequent advisorise to these eireuits to ensure delivery, In addition to the sh: Le advised that the ECIWETUK and EIKINE airstriss will mately 24 hours for operational reasons. «a special pre-shct advisory will be dispatched to EMAJALEIN as required. 2. On shots subsequent to the first, the necessity for evacuations will ve re-examined in light of the experience gained, Also, the need for waiver of MPS (Meximas Persiseibie Byomre) for specified personnel will be resolved st abqus this time (D-5 daya). . Mwial ew | 3. By this date, TU 7 of 16 7.1 (designated fadsafe CENTER during critical shot times) will have published a detailed recovery plan. This ee anticipate all poscible circumstances witch may arise pla will, alternate recovery operations may be put into effect as in order that required by the redsesfe situation. be By this date, the lagoon water sempling plan dll be complete. sampling ‘dll be done by 127.3 (the task group having primary interest in the results), Sampling devices will be lowersd cn & line from e helicopter to take samples at the eurface ani at about 96 feet (4.0., in doth the surface and the bottom lagoon currents). The sampling have been chosen to provide the saximm information of interest Incl 5 Gm5