U.S. EPA, HPOD (3803F), 401 M St. SW, Washington, DC 20460-0001

R -- MODELING SUPPORT FOR EXPOSURE ASSESSMENT SOL W601179B2 DUE 111896 POC Contact Point, Kathryn Barton, (202)260-2354 A synopsis for this requirement appeared in the CBD on August 2, 1996, and is being amended to notify interested parties that this procurement is no longer being set-aside for small business concerns. The text of the original synopsis is modified and restated as follows: The EPA is seeking a contractor to provide modeling support for exposure assessment and to maintain the Graphical Exposure Modeling System (GEMS) and the personal computer version of GEMS (PCGEMS). Work assignments under a level-of-effort contract will be issued to the contractor who possesses the expertise needed to: (1) locate, acquire, and implement environmental computer models to be used to provide exposure assessments for the Office of Prevention, Pesticides and Toxic Substances (OPPTS); (2) locate, acquire, and implement data bases, e.g., environmental data and demographic data, and link them with the exposure models; (3) organize the exposure models and data under GEMS and PCGEMS; (4) apply the computer models to support exposure and risk assessments of specific chemicals; (5) implement mapping and graphical display capabilities to facilitate modeling, analysis of modeling results, and the presentation of results; and (6) keep the GEMS and PCGEMS system software, applications, and documentation up-to-date. It is anticipated that the period of performance for the base period will be approximately nine months, beginning on or about January 1, 1997, with four one-year option periods. Base level of effort per year is 10,000 hours with up to 5,000 optional hours for an estimated overall total of 75,000 hours. It is anticipated that the type of contract will be cost-plus-fixed-fee. The Request for Proposals (RFP), amendments and other related items will be posted on the Internet and should be downloaded from the following site: www.epa.gov/oam. At the EPA's Office of Acquisition Management (OAM) WWW Home Page, select the Headquarters Division (Washington, DC) location. Under ''Current Procurements'', select ''Modeling Support for Exposure Assessment'', RFP #W600179B2. Interested companies must forward requests to be placed on the bidders list to the mailing address above, via E-mail at BARTON.KATHRYN@epamail.epa.gov, or by FAX at (202) 260-6483. If Internet capability is unavailable, interested parties must submit written verification stating such to Kathryn Barton so that hard copies of these documents may be provided. Companies who have already indicated interest in this requirement need not re-submit a request. (0290)

Loren Data Corp. http://www.ld.com (SYN# 0057 19961017\R-0002.SOL)