U. S. Environmental Protection Agency, Contracts Management Division (MD-33), Attn: ORDSC, Research Triangle Park, NC 27711

A -- DEVELOPING METHODS FOR APPORTIONING HUMAN EXPOSURE TO PM2.5 SOURCES SOL U2A568 POC McDonald Morrison, Contracting Officer (919) 541-4364 E-MAIL: Click here to contact the Contracting Officer via, morrison.mcdonald@epa.gov. The U.S. Environmental Protection Agency intends to negotiate a sole source contract with Puget Sound Clean Air Agency, 110 Union Street, Suite #500, Seattle, WA 98101 for the analysis of data to determine sources of toxic chemicals associated with ambient and human exposure to fine particles (PM 2.5). This project will include unique data sets from past source apportionment studies and long term aerosol characterization study using the IMPROVE protocol at the Beacon Hill site in Seattle that only the Puget Sound Clean Air Agency (PSCAA) has. Puget Sound Clean Air Agency has been the only known source for several years of speciated fine particle data in the Puget Sound including the Seattle Area and Beacon Hill site. With their knowledge of air pollution in Puget Sound and their expertise on the design and use of data for source receptor modeling applicable to this geographic area PSCAA is believed by EPA to be the only source capable of providing the required support. The circumstance permitting Otherthan Full and Open Competition Justification is FAR 6.301-2, "Only one responsible source and no other supplies or services will satisfy agency requirements". The period of performance is expected to be from date of award, estimated to be July 05, 2000 through July 30, 2001. All interested parties who believe they can provide the required services should fully explain their capabilities and qualifications in writing within 15 days from the date of this announcement. The intent of this synopsis is to determine if any source(s) exist and, therefore, no RFP is available. Consequently, any response(s) failing to provide the aforementioned data but instead choosing to merely submit a routine letter requesting a copy of the RFP will be ignored. Submit your response to the U.S. Environmental Protection Agency, Contract Management Division, MD-33, Attn: McDonald Morrison, Research Triangle Park, NC 27711. No Telephonic or faxed requests will be honored. Posted 06/15/00 (W-SN465135). (0167)

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