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SEQUOIA ♦iNALYTICAL <br /> 1900 Bates Avenue - Suite LM - Concord, California 94520 <br /> (530) 686-9600 FAX (510) 686-9689 <br /> 'Tank Protect Engineering of N Calif Client Project ID #209/60 E 10th St ,Tracy Sampled Nov 12, 1991 <br /> ,2821 Whipple Road Matnx Descript Sall Received Nov 14, 1991 <br /> YUnion City, CA 94587 Analysis Method EPA 5030/8015/8020 Analyzed Nov 25, 1991 } <br /> ,,Attention John Mrakovlch First Sample# 111-0815 N y Reported Dec 3r 1991 ` <br /> Nr+, <br /> TOTAL PETROLEUM FUEL HYDROCARBONS with BTEX DISTINCTION (EPA 8015/8020) <br /> Sample Sample Low/Medium B.P. Ethyl <br /> Number Description Hydrocarbons Benzene Toluene Benzene Xylenes <br /> mg/kg mg/kg mg/kg mg/kg mg/kg <br /> (ppm) (Ppm) (ppm) (ppm) (ppm) <br /> 111-0815 ST-1 2,500 16 120 38 270 <br /> w <br /> Detection Limits: so 0.25 025 0.25 0.25 <br /> Low to Medium Boiling Point Hydrocarbons are quantitated against a gasoline standard <br /> Analytes reported as N 0 were not present above the stated limit of detection Because matrix effects and/or other factors <br /> re cued additionai sample dilution,detection limits for this sample have been raised <br /> UOIA ANA YTICA <br /> W'�u a R Malerstein <br /> jest Manager <br /> 1110814 TPE <3> <br />