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4 <br /> jSEQUOIA ANALYTICAL <br /> 1900 Bates Avenue a Suite LM s Concord, California 94520 <br /> (415) 686-9600 • FAX (415) 686-9689 v <br /> prealian Engineering, Inc Client Project ID Unocal,7303 Pacific Ave,Stockton Sampled 10/11-12/90 <br /> P O Box 996 Matrix Descnpt Soil Received Oct 15, 1990 <br /> Benicia, CA 94510 Analysis Method. EPA 3550/8015 Extracted Oct 24, 1990 <br /> Attention Mardo Kapreallan, P E First Sample# 010-0432 Analyzed Oct 26, 1990 <br /> Reported Oct 29, 1990 <br /> TOTAL PETROLEUM FUEL HYDROCARBONS (EPA 8015) <br /> Sample Sample High B P <br /> Number Description Hydrocarbons <br /> mg/kg <br /> (ppm) <br /> 010-0432 MW1-(10) N D <br /> 010-0433 MW1-(15) N D <br /> 010-0434 MW1-(25 5) N D <br /> 010-0435 MW1-(35 5) N D <br /> 010-0436 MW1-(55 5) N D <br /> 010-0437 MW1-(59) N D <br /> Detection Limits: 1.0 <br /> High Boiling Point Hydrocarbons are quantitated against a diesel fuel standard <br /> Analytes reported as N D were not present above the stated limit of detection <br /> QEQUOIA ANALYTICAL <br /> is R Malersteln <br /> Oject Manager 100432 KEl <4> <br />