U.S. Environmental Protection Agency, 26 W. Martin Luther King Dr., Cincinnati, OH 45268

A -- COMPUTATIONAL FLUID DYNAMICS (CDF) EXPOSURE ASSESSMENT WORKSTATION SOL ORD31 POC Kathleen Roe, phone 513/487-2144, fax 513/487-2107 WEB: Office of Acquisition Management -- Cincinnati Contracts Management Division, This acquisition will not appear on the web site.. E-MAIL: U.S. EPA -- Cincinnati Contracts Management Division, roe.kathleen@epamail.epa.gov. The U.S. EPA National Exposure Research Laboratory (NERL) plans to negotiate on a sole source basis with EdgeMark Systems, Inc. for the purchase open market components required for integration with components ordered from Edgemark via the Federal Supply Schedule for a Computational Fluid Dynamics (CDF) Exposure Assessment Workstation. REQUESTS FOR QUOTATIONS (RFQs) WILL NOT BE ISSUED. The Federal Supply Schedule is a required source of supply and because the system components must be supplied by a single source, offers for the open market components of this requirement will not be accepted. The workstation is needed to provide NERL the necessary capacity for integrating computational fluid dynamics simulation modeling, geographic information system databases, and scientific visualization to better understand the physical processes and human circumstances during which populations are exposed to health risks associated with urban air pollution. The workstation will be used to apply a comprehensive CDF software code to simulate and visualize pollutant transport in human exposure microenvironments from source to receptor. Computational and visualization software and hardware shall be integrated and able to be applied to the simulation near and within mechanical pollutant samplers, the environment around a human, the indoor building environment, and the ambient urban building (including multiple buildings, automobiles and other surface features) environment.This notice is being placed in accordance with FAR 5.2. EPA anticipates awarding a purchase order on or about 03/19/98. (0061)

Loren Data Corp. http://www.ld.com (SYN# 0008 19980304\A-0008.SOL)