zero to a point within < few miles of the atoli at which time the; will veer off toward a designated rendezvous with the recovery tuys. Cor- tact by recovery tugs is expected to be in the neighborhood of 3 nlus 4 to € hours. after each test it is nlanned to board the protected ship and steam her to Uniwetok, radiation levels sermitting. In event of exeéssive rediution levels both shins will be recovered by tugs after’ each shot particinated in and towed to tniwetok for nost—test operations. “sy Fost-test orerations will consist of: ea. Detailed radiological survey of each ship both above KS. « instrument recovery. 2. Removal of test aircraft and test panels for surve; purposes and decovtemination studies. actical decoutarinatioa of cach shin, both cbove and below decks... ; 6. inal pressration of cach ship for varticipatioa in the next test. 8 5.4.3 Remarks This project wil 6.5. Freseat plans ine] and Yankee. 5.5 Project tlymber: closely coordin.ted witn Projects 2.5 ond articination is Shots Bravo, Union, Koon, 6.5 Decontamination and Protection . USA Project Officer: performing Agency: Wy Mr. J. G. Maloney) 2 5.5.1 Qbjective saben wat Sponsor: La C&L Army Chemical Center __ To determine the contamination and decbrtamination characteristics of representative harbor area construction surfaces and coatings when exposed to fall-out from surface detonatiions over shallow water and land. Farticular interest is concentratedon the wet contaminating particles since no field studies have been conductéd under these conditions. 5.5.2 Procedure A set of 14 construction material panels, 4 ft square, will be mounted on each drone liberty ship of Project 6.4 which will operate in the heavy fall-out areas of Shots Bravo, Union, Koon, and Yarikee. When the ships are returned to niwetok between shots the panels will be removed to Parry Island fcr various types of decontamination~ procedures with intermittent radiation level readings being taken for analysis to determine applicability of the different decontamination 39