Yable 3.2 and Table 3.3 List the data for SUNI. Sote that for this event & inch steel pipe stations were installed at four 210 series stations. and 210.36', These vere designated 210.23', 210.27", 210.30’ The rate device at 210.27' became wedged in the seiee station and failed to drop. The initial readings were obliterated by the residual. The of 210.30' was broken hy the shock caus- ing the instruments to of the total gamma expos 1.44 seconds. A third mechanian yielded only immediately. About eix percent (1070 r) of 16,000 r arrived before shock at device at 210.34' without a dropping exposure information. A mechanioal drop device installed in a water fiiled steel pipe at 210.23' functioned properly. All of the films which dropped read leas than one roentgen since the initial exposure was megligidise. FLATHEAD Tables 3.4 and 3.5 contain initial data. ‘The difference between the fila and quarts fiber exposures at Station 212.03 is not fully understood. At Btation 212.05 the 10 r thermal and blast exposures are the result of ZUNI residual contamination. Film indicates about three roentgens initial exposure and quarts fiber dosimeters indicate about 4.5 r. The switches in the mechanical Grop Gevices at 213.02, 213.03, and 213.0% functioned but the dosimeters 414 mot fall below the surface because of a constriction in the pipes. Results from the quart: fiber exposure versus time devices are shown in Table 3.6 and Figure 3.7. The rate device at Station 211.01 did mot drop, so it was necessary to subtract the re:idual exposure of 500 r. It vas assumed that the 48 r arriving after 15 seconds was residual, the shielding being ony 90 percent effective. At Station 212. the device operated in reverse, yielding only total residual in- formation. At Station 211.03 the exposure was small and could not be resolved properly. Sr. Louis rk Fable 3.7 lists installation and recovery information and exposures from residual stations. Information from Project. 2.2 indicates that Stations 210.23 to 210.41 received about 1 roentgen of fallout from FLATHEAD shot. The remainder of exposure at these stations was from Shot ZUNI. ERCLUIEL FUOM AUTOMETIC RETPADING DOD DIR $200.10 DOS NOT APPLY APOTARING DATA CANNOT BE PREDETLERMINED

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