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SEQUOIA ANALYTICAL <br /> 819 Striker Avenue, Suite 8 • Sacramento, CA 95834 <br /> (916) 921-9600 • FAX (916) 921-0100 <br /> Brown & Caldwell Client Project jD Arco 2133-93-5, Stockton Sampled Oct 15, 199-0 <br /> P O Box 13449 Sample Matrix Soil Received Oct 19, 1993 <br /> Sacramento, CA 95813-3449 Analysts Method EPA 5030/8015/8020 Reported Nov 8, 1993 <br /> Attention Steve Misner First Sample # 310-0722 <br /> TOTAL PURGEABLE PETROLEUM HYDROCARBONS with BTEX DISTINCTION <br /> Reporting Sample Sample <br /> Analyte Limit I D. I D <br /> mg/kg 310-0722 310-0723 - <br /> V-7@10 5-11' V-7@18-18 5 <br /> Pur gea e <br /> Hydrocarbons 1 0 540 N D <br /> Benzene 0 005 N D N D <br /> -s r <br /> Toluene 0 005 093 N D <br /> Ethyl Benzene 0 005 3 8 N D <br /> Tota! Xylenes 0 005 18 N D <br />- — - Chromatogram Pattern Gasoline <br />�-—=Duality Control Data=� ---- --- r— --- -------- ------ ---_ -- ——�-, ---- <br /> Report Limit Multiplication Factor 100 1 0 <br /> Date Analyzed 10/28/93 10/28/93 <br /> Instrument Identification HP-1 HP-1 <br /> Surrogate Recovery, % - 120 116 <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 limit <br /> SEQUOIA ANALYTICAL <br /> Linda C Schneider <br /> Project Manager 3100713 BRS <4> <br />