The destroyer was subsequently ordered to start evacuationl|the follow‘ag morning, 4 March. Between 1100 and 1300, 157 people were underwent decontamination procedures on the destroyer en route ~@in, and debarked on 5 March. Questioning of Utirik inhabita closed that all had been evacuated. The destroyers evacuating and Utirik were also directed to obtain drinking water samples atolls. A check of these samples indicated the drinking water from 2 to 28 times the task force standard allowance of radioa taminants (for full-time usage) (Reference 65). The status of Ailuk Atoll, with a reported population of 40 under consideration at approximately 2000 on 2 March. The expe without evacuation was determined to be less than 20 R, i.e., 1 the standard used by the task force for its sampling aircraft c was the major factor in the decision not to evacuate Ailuk. Al populated atolls on the flight Able pattern received less cont than Ailuk (Reference 26). During the afternoon of 2 March, a directive was issued to offsite monitoring flights Baker and Charlie on 3 March. These covered all Marshall Islands south of Kwajalein and were conduc termine whether winds at the 20,000-foot (6.1-km) level could h * ® ; e debris to the south and west and contaminated some of the south shalls. The flights were executed on 3 March, but no significa contamination was found. An additional flight (designated King)] covered the Gilbert Islands on 6 March for the same reasons. At the re the task force, CINCPAC obtained advance clearance from the Bri the Gilberts flight. A maximum of 0.00008 R/hr on 6 March was reported through CINCPAC to the U.S. Naval Attache in London (Reference 16, p. K-10). Throughout the actions involving evacuation of island inhabi rants, the standard reference used to determine whether an atoll was popula ed was OpNav 122-100-M, June 1951, Trust Territory of the Pacific Islan 229 S.