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SEQUOIA ANALYTICAL <br /> 1900 Bates Avenue - Suite LM - Concord, California 94520 <br /> X0 (510) 686-9600 FAX (510)686-9689 <br /> • <br /> ............... <br /> ',*aprealian Engineering, Inc. Client Pr01"ect ID: Unocal,601"L.Rettlemani-n., Lodi Sampled. Dec 16, 1991; <br /> P.O. Box 9% Matrix Descript: Soil Received: Dec 17, 1991::. <br /> ::,.' Benicia. CA 94510 Analysis Method: EPA 5030/8015/8020 Analyzed: Dec 23, 199 <br /> Attention. MardoKapreallan, P.E. First Sample#: 11240669 Reported: Jan 2, 1992 .' <br /> ................ <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 /> 112-0669 MW5-(15) N.D. N.D. N.D. N.D. N.D. <br /> 112-0670 MW5-(20) N.D. N.D. N.D. N.D. N.D. <br /> 112-0671 MW5-(24.5) N.D. N.D. N.D. N.D. N.D. <br /> 112-0672 MW5-(30) N.D. N.D. N.D. N.D. N.D. <br /> • <br /> 112-0673 MW5-(35) N.D. N.D. N.D. N.D. N.D. <br /> 112-0674 MW5-(40) N.D. N.D. N.D. N.D. N.D. <br /> 112-0675 MW5-(45) N.D. N.D. N.D. N.D. N.D. <br /> 112-0676 MW5-(50) N.D. N.D. N.D. N.D. N.D. <br /> 112-0677 MW5-(55) N.D. N.D. N.D. N.D. N.D. <br /> 112-0678 MWS-(60) N.D. N.D. N.D. N.D. N.D. <br /> Method Detection Limits; 1.0 0.0050 0.0050 0.0050 0.0050 <br /> Low to Medium Boiling Point Hydrocarbons are quantitated against a gasoline standard. <br /> SEQUOIA ANALYTICAL <br /> Scott A. Chieffo <br /> Project Manager <br /> 1120659.KEI <2> <br />