◆ SpookStack

To: Washington Field From: Washington Field Re: 279A-WF-222936-USAMRIID, 03/29/2006 The three keycard access points of concern were | = Ent: into the male or female change room via badge swipe b2 , 2) Entry into the containment area b é via keypad cod YP. tt pyc Exit from the male or female change room via badge swipe These access points are referred to on the below chart as 1) IN, 2) KEY and 3) OUT. The following chart describes each employee's keycard access records for each date they were listed as having been involved with an aerosol challenge using Ba. Data in the fourth column are recorded as follows: "Yes" indicates all three relevant access points were recorded in the proper order (IN, KEY and OUT), "None" indicates none of the relevant access points were recorded, and any anomalies or missing access points are mentioned. Use of the Keycard System in Building 1412 zoons| | and Iby_ Principal Investigators and Aerosol Technicians During Aerosol Challenges Between 9/14/1999 and 8/14/2001 IN/OUT/KEY consistently? PI/Techs Exposure# Yes 9/14/99 IN/KEY but no OUT Yes Yes 10/15/99 None One extra IN, all else okay 4/10/00 None Yes KEY/OUT but no IN 7/17/00 None None (was in on 7/17/00) Yes IN/KEY but no OUT 7/18/00