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ED-302a (Rev. 10-6-95) 279A-WF-222936-USAMRIID Continuation of FD-302 of Bruce Edwards Ivins On 03/31/2005 ..,Page . b6 of was to assist. with the increased workload in. b7C By way of background, Ivins related that in October 2o01,. the Daschle letter was initially weighed in Room and then processed and photographed in Rooms These rooms Aaageaeeg aae pue ded go yeeeag auenoeeed geenade deg go aeed aer Building 1425. Following the initial processing of the Daschle letter, Ivins was tasked by. to assess the. concentration of the anthrax powder in the Daschle envelope. To perform a colony count, Ivins took the Daschle letter to Room. in Suite B3. Ivins identified two reasons .for his decision to swab his office space in December 2ool. First, Ivins did not believe that and because the biosafety level category (i.e., BsL-2) was not adequate to contain aerosolizable anthrax powder. Consequently, he was concerned that some anthrax may have escaped the confines of these two rooms. Second, Ivins advised that. commented "daily" to him during. that employee lab practices were unsafe complained about this "many times," he said. Based on claims, 'IVINS feared that linadvertently may have contan. ated the office. Accordingly. Ivins decided to collect environmental samples from desk, chair, telephone and computer. Ivins did not swab his own work. area (i.e., desk, chair, computer) or that of. even though they all shared the same room. IVINS collected approximately 20 individual swabs from work area. When queried as to why he swabbed only b6 workspace, Ivins said his decision was predicated on the. b7C layer of dust he observed on desk and the fact that was the only one who had been working where lab IVINS also offered that the air flow of the heating/ventilating/air conditioning (HVAC) system in the room placed his desk and desk "upwind" from desk so that he did not exnegt. any errant anthrax spores to have settled on his or desk. IviNs advised that his culturing of the environmental samples from colonies that visually appeared to be Bacillus anthracis.