7.8 rem. In a limited number of shipboard cases, even this level was exceeded. Substantial overdoses from BRAVO, the highest for any test series, were accrued by the 28 Air Force and Army personnel on Rongerik Atoll (13: 3-4) and the 92 crew members of USS Patapsco, a Navy gasoline tanker that was overtaken by the nuclear cloud on the day following the shot while enroute from Enewetak Atoll to Pearl Harbor (14). Film badge readings suggest that three members of the U.S. Navy Bikini Boat Pool also may have received substantial overdoses. Thorough investigation at the time failed, however, to indicate reasons for these readings (13: 243-244). As a result of BRAVO, 21 individuals on the USS Philip and 16 on the USS Bairoko sustained lesions that were classified as beta burns, all of which healed without complications (13: 3-4). Summary of External Doses for Operation CASTLE as of 1 May 1986 Gamma Dose (rem) 0-0.5 0.5-1 1-3 3-5 5-10 Army 0 Navy QO 1,341 47 6 3 3,940 1,462 2,210 695 211 115 Air Force 984 193 970 62 30 31 Marine Corps 160 8 101 29 5 0 30 6 13 0 0 0 Civilian DOD Participants 10+ 4.11 OPERATION TEAPOT. Conducted from 18 February to 15 May 1955, Operation TEAPOT was the fifth series of CONUS tests. Two of the 14 nuclear detonations in the series, APPLE 1 and WASP PRIME, occurred on the same day although in different parts of the NTS. ESS, the only TEAPOT subsurface detonation (-67 feet), forced tons of earth upward, thereby creating a crater 88 meters wide and 96 feet deep. Figure 14 shows Exercise Desert Rock VI troops observing the ESS detonation (G). They were positioned approximately 8 kilometers from the shot site. 106