Tetra Tech, Inc. 15400 NE 90th St., Suite 100, Redmond, WA 98052

B -- LABORATORY SERVICES FOR ANALYSIS OF FISH TISSUE SAMPLES DUE 071596. Contact, Carol Arnold, (206) 883-1912. USEPA Contract No. 68-C3-0374. Tetra Tech, Inc. is hereby soliciting Firm-Fixed Unit Price proposals for laboratory services for analysis of fish tissue samples collected during Phase II of the Columbia River Inter-Tribal Fish Commission (CRITFC) Exposure Study. The resulting contract will be of an Indefinite Delivery/Indefinate Quantity Type, however it is anticipated that approximately 50-120 samples will be collected. The scope of work will consist of a sample handling task, which includes the receipt, processing (i.e., homogenization), and redistribution of sample aliquots and a sample analysis task. Analyses required are for Dioxins/Furans and Coplaner PCBs, specifically for the 17 2, 3, 7, 8- substituted dioxins and furans and for 13 coplanar PCBs (77, 105, 114, 118, 123, 126, 156, 1157, 167, 169, 170, 180, and 189) using methods U.S. EPA 1613B and 1668, respectively. It is anticipated that sampling will begin in early summer of 1996 and continue through the summer of 1997. All requests for copies of the RFP must be submitted in writing (facsimile preferred) to Carol Arnold, Contract Specialist, fax number (206) 881-6997. No telephone requests will be honored. Proposal are due at Tetra Tech's office (noted above) on or before the close of business (5:00 p.m. - local time) July 15, 1996. Any contract awarded under this solicitation will be subject to the consent of the U. S. Environment Protection Agency. (171)

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