Notification is provided to the public that the U.S. General Services Administration (GSA) has executed a continuing need lease action for the Transportation Security Administration (TSA) at A.B. WON PAT INTERNATIONAL AIRPORT, 355 Chalan Pasahero, Tamuning, Guam 96913-4153. The lease consists of approximately 10,050 rentable square feet and will be used for (administration, shift-change, and employee break areas). It has been determined that this facility and the subsequent GSA lease are located in an unknown floodplain. Presidential Executive Order 11988, Floodplain Management, requires GSA to review its proposed projects for possible alternatives to being located in an unknown floodplain. Since it is mandatory that TSA be physically located within the boundary of the airport property, there are no viable alternative sites that would meet the requirements of the agency. The agency mission and location requirements are functionally dependent. GSA has reviewed the mitigation measures developed and implemented by the airport facility to minimize the risk associated with being located in an unknown floodplain. As a result of this review, GSA has determined that the agency and the public using this leased space are at no greater risk from the floodplain location. Public comment may be directed to Cheryl Nolting, (808) 551-8347. cheryl.nolting@gsa.gov. 300 Ala Moana Blvd., Rm 1-336, Honolulu, HI 96850, within 30 days of this notice.