d. After "DOG" shot, landing was made on the shot island as planned al- ‘though the Landing dock had been partly dumolished, at the dock at H plus 30 minutes, Some radiosactivity Was reported At H plus 50 minutcs information was retcived ot the JTF-~3 Operations Control Conter (OCC) that the quick acrial survoy of atoll isA lands showed no significant contamination on eny islands except the show island. message lifting the SURFACE RADEX for Lagoon surface traffic was sent out ab H plus 90 minutes (0810). o, Ab:bout O0&30M reports of radioactive fall-out on ships in the sowth end of the lagoon, and on JAPTAN and PARRY ISLANDS, started to arrive at the 006 fro: At various sourees through the RadSafe Center (Task Unit 3.1.5) on PARRY ISLAND, LLOON reports wére received that the background radiation inbensity Level was rising on ENIWETOK ISLAND, f, Records from rodiation intensity moters on PARRY ISLAND showed that two slight waves of fall-out affected PARRY ISLAND at about H plus a4 and H plus deh hour: Peaks of radiabion intensity of about 40 ar/hr indoors were rocched at about H plus 3 and H plus 6 hours, | Ships of Tesk Group 3.3 in the soubhern cnd of the Lagoon werc affected during the first fall-out wave (H plus 25 hours). intensities varying up to 20 to 30 mr/hr, Also, some ships noted ‘This wos duo partly to the fall-out just montioned and partly to radioactivity in the water down-wind from the zero point, gs, At LOOM, Commender, Task Unit 3 1.5 (Special Assistant for Rediologica’ Safoty to Commander, JTT~3) recomaended that all bont traffic be stopped north of RUNIT exceot regularly scheduled trips <f scientific personnel with monitors, In- the interest of avoidine any unnecessary cxposurcs of personnel, cven to the low ‘lovels of radLation mentioned above, personnel were erdured indoors on PARRY, JAPTAN and ENIWETOK ISLANDS with only csssont ial work boing permitted, maintained until the mornin of D plus 1 Bay, These conurols were On D plus 1 Day. RadGafe clearence was gronted for all islands with « fow exceptions, On) plus 2 Day, RadSatve clear- ance WOs granted for certain additional islands, and for .irstrips on RUNIT and ANTYAANTT TSLANDS, he Croup 3,1. monloor control was ostablishec on the shet island on "DOG" day by Task Task rroup 3.4 accomplished seientifie “Yurcent" tasks without ineident and the decontamination probleu for plancs was minor in seepoa, Task Group 3.3 accon plished necessary decontwainetion of ships and boats expeditiously. Water sampling on obher atolls wit:in a 400 mile radius of ENIWSTOK was performed by amphibious alr. crait, No health hazards were noted in any of the water samples tm BOR eet ye or ag a3eye Sate BG RVers ° re Ey vf i: f charac : 88, pe 2 oyag 8 Big. 2 at Fert SF mee gy foge ead Ftp teeth oon a