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SEQUOIA ANALYTICAL <br /> 819 Striker Avenue, Suite 8 • Sacramento CA 95834 <br /> (916) 921 9600 • FAX (916) 921 0100 <br /> RESNA Industries Client Project ID Arco #2130, Stockton Sampled 11/16-17/92 <br /> 3164 Gold Camp Dr, Suite 200 Sample Matrix Soil Received Nov 23, 1992 <br /> Rancho Cordova, CA 95670 Analysis Method EPA 5030/8015/8020 Reported Dec 1, 1992 <br /> Attention Jay Johnson First Sample# 211-0492 <br /> TOTAL PURGEABLE PETROLEUM HYDROCARBONS with BTEX DISTINCTION <br /> Reporting Sample Sample Sample Sample Sample Sample <br /> Analyte Limit I D I D I D I D I D I D. <br /> mg/kg 211-0492 211-0493 211-0494 211-0495 211-0496 211-0497 <br /> S40 5 B21 S 55-821 S-6"21 S-35 5-82-2 S-605-822 S-65 5-B22 <br /> ! 2 <br /> Purgeable <br /> Hydrocarbons 1 0 N D N D D N D N D N D <br /> Benzene 00050 N D N D N D N D N D N D <br /> Toluene 00050 N D N D N D N D N D N D <br /> Ethyl Benzene 00050 N D N D N D N D N D N D <br /> Total Xylenes 00050 N D N D N D N D N D N D <br /> Chromatogram Pattern <br /> Quality Control Data <br /> Report Limit Multiplication Factor 10 1 0 10 1 0 1 0 1 0 <br /> Date Analyzed 11/24/92 11/24/92 11/24/92 11/25/92 11/25/92 11/30/92 <br /> Instrument Identification HP-1 HP-1 HP-1 HP-2 HP-2 HP-2 <br /> Surrogate Recovery, % 96 93 94 106 106 107 <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 /> Michael R Giles <br /> Laboratory Director <br /> 2110492 RES <1> <br />