* 1 von ENO iy units of the Surface Security Unit. These atolls were also surfeyed and resurveyed in order to establish the degree of contamination, a§d to establish how the fallout may have been taken up in the food chaig by plants and animals. were still This required several returns to the atolls, whicl}) radiologically hot enough to require that shore parties be badgdd. activities are summarized Table 66. Dates These in Table 66. CASTLE evacuation and resurvey activities, March-April 1954. Ship Activity Location(s) 3 Mar Phili DDE-498) Evacuation Rongelap and Ailinginae cE 4 Mar Renshaw (DDE-499) Evacuation Utirik Atoll 5-8 Mar Renshaw (DDE-499) Resurvey 6 March: Likiep, Jemo Islafid, and Ailuk Atoll; 7 March: Meji—f Island 8-12 Mar Nicholas (DDE-449) Resurvey 9 March: Utirik and Aon Isffands at Utirik Atoll, and Bikar Isl@nd at , Bikar Atoll; 10 March: Enew@tak Island Island at Rongerik Atoll, agd Ailinginae Atoll; 11 March: northérn RongeJap Atoll 25-26 Mar Nicholas Resurvey 21-23 Apr Phil Resurvey Source: (DDE-449) DDE-498) Rongelap Atol] 21-23 April: 23 April: Rongelap Atol]; Ailinginae Atoll Reference 16, Appendix H. Rongerik remained too radioactive for continuous occupancy affter BRAVO and required evacuation because of the contamination of the weather station and the Project 6.6 station there. However, because JTF 7 required weather information from this station, it was operated tently to make daylight soundings before shots ROMEO and KOON by flown in and out by seaplane. ill ifhtermitPersonnel For shots UNION and YANKEE, personhel were 348