were left over the side as far rom personnel as possible. Repeated hosings with salt water reduced their intensity from 125 to 30 milli roentgens per hour (gamma only), 4. On & March 1954, decontamination work on the port gun sponsons was completed. The methods used were similar to those employed on the starboard side. .At the — completion of the days work the averdge deck intensity on the port sponsons was 7 milli roentgen per hour (gamma only). The hot spots were ventilation duct screens and one cocoa mat fender, which had average readings of 30 milli roentgen per hour (gamma only). The vent screens were removed, placed on deck and scfubbed which reduced their intensity to 15 milli roentgen per hour (gamma only). . 5. The average intensity on the hangar deck at 1600, 4 March 1954 was 2.7 milli roentgen per hour (gamma only). Decontamination efforts on this deck consisted mainly of swabbing up water which leaked through the roller curtain doors during hosing down operations on the weather decks, The average intensity in berthing spaces below the hangar deck was less than 2 milli roentgen per hour (gamma only) by 1600, 4 March 1954. . 6. Decontamination efforts of 40 MM guns and gundirectors were of minor nature, Exposed gun barrels, gun carriages, and director pedestals were scrubbed with soap and water and wiped down with fresh water, Contamination was highest in the bottom of the empty brass shutes ander the elevation gear racks, The average - reading was 5 mil roentgen per hour (gamma only) and the highest was 10 millt* _ roentgen per hour (gamma only)on mount 45 which was uncovered during the period ' of fall out. The remainder of the work necessary on the guns and gn directors| , was routine maintenance to remove corrosive salt deposits. Oe 7. While at anchor in BIKINI ATOLL the intensity reading on the salt water piping system did not exceed 2 milli roentgen per hour (gamma only), , on 8 1954, the evaporator drain pump strainers were opened on all four evaporators.|), The intensity. rea "of the scale accumulations wis found to be 5 milli roentgen. per hour (gamma nies, All fresh water samples from the evaporators tested y Task Group 7.1 have shown 1/5000 micro curries per milliliteror less. - 8. wy . Decontamination of the ‘ship was considered completed at the end of the aay «on . 4 March 1954. Decontamination of helicoptersand personnel continues as required. EMMET O' BEIRNE Copy to: . CINCPACFLT (less Enclosure (2}} COMAIRPAC (Less Enclosure (2) ENCL (4)