00320 and were sent to Rongerik on 25 February by the TG 7.4 Technical Advisor (Reference 30). Four of these badges apparently were actually worn by four of the twenty-five men from the 6th Weather Squadron there. Two others were placed on exposed positions on the island. 00315) One (badge was placed "between barracks," presumably between the blocks marked "1" and "2" on the sketch map (Figure 63), and recorded 82 R. The second badge in an exposed location was 00314, which was placed on a tent pole 7 feet (2.1 meters) 98 R. above the floor of the "Project 6.6 tent" and recorded The six remaining badges were stored in a refrigerator (presumably the "reefers," on the map of Figure 63), and all recorded 37.5 to 39.5 R (Reference 65). An assignment of exposure to personnel was made by the TG 7.4 Technical Advisor and was recorded by the NCO in charge of dosimetry and decon~ tamination in the TG 7.4 Nuclear Applications Section. This assignment has been filed along with the 5x8 cards on which Reference 13 is based and can be found in the microfilm file (Reference 87). Unfortunately, in this assignment of exposure, two errors were made that in turn have been picked up in Reference 13. The first error was that 15 of the 25 Air Force personnel established as being on Rongerik were not assigned an exposure. The second error was the assignment of an exposure to a Surname not otherwise established as belonging to any man known to have been on Rongerik at the time. The person with this surname, not accompanied by given name, rank, or Serial number, or other identification, was recorded in Reference 13 as having received 40 R. ment of the other men's exposures is straightforward. The assess- The three Army men of the 9710th TSU were assigned the exposures from the "6.6 tent" pole badge (98 R), and the ten Air Force men were assigned exposures between 40 R and 52 R, based perhaps on a knowledge of their activities. PATAPSCO CREW. The contribution of the crew of the Patapsco to the collective exposure is based on a recent estimate that considered the natural washdown provided by documented rain and the weather-deck versus below-deck exposure (Reference 96). 240