PRIVACY ACT MATERIAL REMOVED | OS ALAMOS SCIENTIFIC LABORATORY UNIVERBITY OF CALIFORNIA MERCURY. NEVADA 69023 OFFICE MEMORANDUM : John S. Malik,. J-DOr FROM “<*> 5 : Gordon RG ¥. Jacks, J-DO MAIL STOP: J.DV FolderHORDTACK 900 411097 a, COMMISSION Collection STESS JDORo ICH U9 826 US ATOMIC ENERGY Location gusuect: SYMBOL : DATE: April 17, 1979 shee . Bed zw ~ Actian According to the Hardtack dosimetry records, voy s issued his first film badge on 8 April, 1953; his last filn badge was turned in on 15 August, 1958. A copy of this record is attached. I have no idea as to why his DD 214 Record of Ionizing Radiation shows only the exposure recorded on his first film badge. — _ was issued his film badges in keeping with the Joint Task Force Seven order requiring filo dosimetry for each person in the Task Force during the actual period of 7 time that the Task force was responsible, approximately 1 April, 1955 to 31 August, 1955. He was not issued a fiim badge for the period of 27 November, 1957 to 8 April, 1958 as none was necessary. During that period of time the radiation levels on Japtan Island were background only. The radiation levels on Japtan Islend after 15 Aucust, i953 were low enough to preclude the requirement for fiim dosinetry uniter the existing FRC requirements, per ADC prodedures. See TG 7.5 Rad Sate Report for Hardtack, informetion with respect to the film packet is correct, as used by ° in his letter, is not correct. "Supposedly", The ceresin wax and vinyl plastic holder were absolutely necessary to protect the rilm pac-cet. Reference WI 1535, Operation Hardtack, Radiologicel Safety. I cannot account for the excessively high exposure record shown for » A search through the exposure records of all other personnel in his particular organization (Tasx Group 7. 2, Task Unit O, Org. 1) shows only one individual iitn equel or higher exposure record, 3,5575 ar. Where this one individual was located within the Atoll is not knom. He could have been on Jantan with he may well heave been on Enivetox Islend with the vast mejority of the Tesk Group 7.2 personnel. ‘The e:posure records on the otner members of organization show exposures Oi @ few nundreds of ar to 2100 mr. A few heve exposures below this range, a few others have exposures of 2200-2400 ar. Japten Island was kept "clean" in so fer as possible with respec. to radiation. This island wes used as a recreation area by many people in the Task Force. Every effort was made to retain the ecology of the isleni in a clean mode. No radioactive materials or sources were placed on the islend; this wes true, also, during those weapons testing operations conducted prior PRIVACY ACT MATERIAL REMOVED BEST COPY AVAILABLE