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SEQUOIA ANALYTICAL RECEIVED o s <br /> 1900 Bates Avenue • Suite LM • Concord, California 94520 <br /> (510) 686-9600 FAX (510) 686-9689 <br /> u AAssociate's V" 61e'nt project Ib Arco 2093-93-1/Tracy Nv v Sampled ri v Jul 29, 1993 <br /> 1W.55 Gateway Blvd , Ste 770 Sample Matrix Soil Received Jul 29, 1993 <br /> Concord, CA 94520 Analysis Method EPA 5030/8015/8020 Reported Aug 5, 1993 <br /> Attention Paul Supple First Sample# 307-1301 <br /> TOTAL PURGEABLE PETROLEUM HYDROCARBONS with BTEX DISTINCTION <br />' Reporting Sample <br /> Analyte Limit I D <br /> mg/kg 307-1301 <br /> CS 14 (A-D) <br /> Purgeable <br /> Hydrocarbons 10 35 <br /> Benzene 0 005 0 036 <br />' Toluene 0 005 012 <br /> Ethyl Benzene 0 005 0 063 <br /> Total Xylenes 0 005 039 <br /> Chromatogram Pattern Gasoline& <br /> Non-Gasoline <br /> Mixture <br /> (>C10) <br /> Quality Control Data <br /> Report Limit Multiplication Factor 50 <br /> Date Analyzed 8/4/93 <br /> Instrument Identification HP-2 <br /> Surrogate Recovery, % 113 <br /> (QC Limits = 70-130%) <br /> turgeable Hydrocarbons are quantitated against a fresh gasoline standard <br /> Analytes reported as N D were not detected above the stated reporting limit <br /> QUOIA YTICAL <br /> c <br /> ennet K F Lee <br /> Laboratory Director <br /> 3071301 ROU <1> <br />