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SEQUOIA ANALYTICAL <br /> 1900 Bates Avenue • Suite LM e Concord, California 94520 <br /> (510) 686-9600 • FAX (510) 686-9689 <br /> ,WKaprealian Engineering, Inc Client Project ID Unocal, 2835 Navy Drive, Stockton Sampled Apr 22, 1992 <br /> ,2401 Stanwell Drive, Suite 400 Matrix Descript Soil Received Apr 22, 1992 <br /> L <br /> Concord, CA 94520 Analysis Method EPA 3550/8015 Extracted Apr 23, 1992 <br /> Attention Mardo Kaprealian, P E First Sample# 204-0920 Analyzed Apr 23, 1992 <br /> Reported Apr 24, 1992 <br /> TOTAL PETROLEUM FUEL HYDROCARBONS (EPA 8015) <br /> Sample Sample High B P <br /> Number Description Hydrocarbons <br /> mg/kg <br /> (ppm) <br /> 204-0920 Comp A 670 <br /> 204-0921 Comp B 360 ` <br /> 204-0922 Comp C 86 <br /> Mehtod Detection Limits. 1.0 <br /> High Boding Point Hydrocarbons are quantitated against a diesel fuel standard <br /> SEQUOIA ANALYTICAL <br /> Scott A Chieffo 2aaos2o K_I <br /> Project Manager <br />