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j SEQUOIA ANALYTICAL RECEIVED AUG 1 7 1992 <br /> 680 Chesapeake Drive - Redwood City, CA 94063 <br /> (415) 364-9600 - FAX(415) 364-9233 , <br /> RESfVA <br /> Client Project ID h W0148 01, Stockton Police n Sampled- Jul^31..,' 1992 <br /> 1710 Main Street Sample Matrix Soil Received Aug 3, 1992 v <br /> -Escalon, CA 95320 Analysis Method EPA 5030/8015/8020 Reported Aug 13, 1992 <br /> Attention John Lane First Sample# 208-0548 <br /> TOTAL PURGEABLE PETROLEUM HYDROCARBONS with BTEX DISTINCTION <br /> Reporting Sample Sample Sample Sample <br /> Analyte Limit I.D. I D. I.D. I.D <br /> mg/kg 208-0548 208-0549 208-0550 208-0551 <br /> SP1-SSI A-B SP2-SS1 GD SP3-SS2 E-F 5P3-SS2 G-H <br /> Purgeable <br /> Hydrocarbons 10 N D N D 23 N D <br /> Benzene 00050 N D N D 0 011 N D <br /> Toluene 00050 N D N D 0 076 N D <br /> Ethyl Benzene 00050 N D N D 0 071 N D <br /> Total Xylenes 00050 N D N D 1 1 N D <br /> Chromatogram Pattern -- __ Gas& _ <br /> Non-Gas Mix <br /> >C12 <br /> Quality Control Data <br /> Report Limit Multiplication Factor 1 0 1 0 1 0 1 0 <br /> Date Analyzed 8/6/92 8/6/92 8/6/92 8/6/92 <br /> Instrument Identification GCHP-6 GCHP-6 GCHP-7 GCHP-7 <br /> Surrogate Recovery, % 103 103 104 95 <br /> (QC Limits = 70-130%) <br /> Purgeable Hydrocarbons are quantitated against a fresh gasoline standard <br /> Analytes reported as N D were not detected above the stated reporting limit <br /> SEQUOIA ANALYTICAL <br /> is e <br /> P oject Manager 20eosaa wAT <I> <br />