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` SEQUOIA ANALYTICAL <br /> 819 Striker Avenue, Suite 8 • Sacramento, CA 95834 <br /> WWO (916) 921-9600 • FAX (916) 921-0100 <br /> I <br /> RESNA Industries Client Project ID Arco #6020, Manteca Sampled Nov 21, 1992 <br /> 3164 Gold Camp or, Suite 200 Sample Matrix Soil Received Nov 23, 1992 <br /> Rancho Cordova, CA 95670 Analysts Method EPA 5030/8015/8020 Reported Dec 3, 1992 <br /> Attention Jay Johnson First Sample # 211-0510 <br /> I <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 211-0510 211-0511 211-0512 211-0513 <br /> I S 155 B12 S-20 5 B12 S 23 5 B12 S-20 5 B13 <br /> Purgeable <br /> Hydrocarbons 1 0 N D N D N D N D <br /> Benzene 00050 N D N D N D N D <br /> Toluene 00050 N D N D N D N D <br /> Ethyl Benzene 00050 N D N D N D N D <br /> Total Xylenes 00050 N D N D N D N D <br /> Chromatogram Pattern - - - <br /> Quality Control Data <br /> Report Limit Multiplication Factor 1 0 1 0 1 0 1 0 <br /> Date Analyzed 12/1/92 12/1/92 12/1/92 12/1/92 <br /> Instrument Identification HP-1 HP-1 HP-1 HP-1 <br /> Surrogate Recovery, % 84 85 100 92 <br /> (OC 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 Itmit <br /> SEQUOIA ANALYTICAL <br /> Michael R Giles <br /> Laboratory Director <br /> 2110498 RES 3> <br />