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r ? <br /> I <br /> TL 489-0589-02' Page 9 <br /> Table No. 1 <br /> ;. <br /> Type of Analysis, Preparation Methods and <br /> Analytical Methods <br /> July 1990 . <br /> Type of Analysis Preparation Method Analytical Method <br /> Benzene 5020' 8020' <br /> Toluene 5020 . 8020 <br /> Ethylbenzene 5020 8020 <br /> Xylenes 5020 8020 <br /> Total 'Petroleum <br /> Hydrocarbon-Gasoline 5020 GC/FID2 <br /> Total Petroleum <br /> Hydrocarbon-Diesel Luft/Shake2 GC/FID <br /> GC/FID: Gas Chromatography/Flame Ionization Detection <br /> 3 U.S . EPA, Test Methods for Evaluating Solid _ Waste <br /> I <br /> Physical/Chemical Methods, Office of Solid Waste and Emergency ' <br /> Response, . U.S. Government Printing Office, Washington D.C. , <br /> SW-846, 3rd ed. , November 1986. # <br /> 2 State of California, Water Resources Control Board. , Gas <br /> Chromatography/Flame: ionization Detection, Reproduced from <br /> "Leaking Underground Fuel Tank Field Manual: Guidelines for <br /> Site Assessment, Cleanup, and: Underground Storage Tank N <br /> Closure, " October 1989., <br /> 4 .5. 1 . Quality Assurance/Quality - Control (QA/0C) <br /> Procedures: The QA/QC procedures used for this investigation were <br /> developed to minimize, outside.interferences during analysis of each <br /> sample. For this project, the laboratory director was responsible , <br /> for creating and maintaining: the QA/QC program. Specific QA/QC <br /> procedures developed for this investigation are summarized as <br /> follows: <br /> 0707aGt �.o,P,�. <br /> Fresno Modesto Visalia Bakersfield <br /> I` <br />