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y <br /> ` SEQUOIA ANALYTICAL <br /> 680 Chesapeake Drive • Redwood City, CA 94063 <br /> (415) 364-9600 • FAX (415) 364-9233 <br /> *Kaprealian Engineering, Inc Client Project ID Unocal, Stockton, 7303 Pacific Ave Sampled Nov 20, 1989 <br /> P O Box 913 Matrix Descript Soil Received Nov 21, 1989 <br /> Benicia, CA 94510 Analysis Method EPA 5030/8015/8020 Analyzed Nov 21, 1989 <br /> Attention Mardo Kaprealian, P E First Sample# 911-2718 Reported Nov 22, 1989 <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 /> 911-2718 Pi 43 010 029 010 064 <br /> 911-2719 P2 29 19 48 072 39 <br /> 911-2720 P3 12 N D N D N D N D <br /> 911-2721 P4 89 044 N D 084 037 <br /> . 911-2722 v1 N D N D N D N D N D <br /> 911-2723 v2 42 N D N D N D N D <br /> Detection Limits 10 005 01 01 01 <br /> Low to Medium Boiling Point Hydrocarbons are quantitated against a gasoline standard <br /> Analytes reported as N D were not present above the stated limit of detection <br /> SEQUOIA ANALYTICAL <br /> eb'�- � -0 V"� <br /> Belinda C Vega <br /> Project Manager 9112718 KEI <1> <br />