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SEQUOIA ANALYTICAL <br /> 1900 Bates Avenue • Suite LM • Concord,California 94520 <br /> (510) 686-9600 FAX (510) 686-9689 <br /> W vn <br /> kux Associates Client`Project1D' Arco#X093-98-1 n ' ` Y Sar6pled :Jul 20, 1998 <br /> 1855 Gateway Blvd , Ste 770 Sample Matrix Soil Received Jul 20, 1993 <br /> Concord, CA 94520 Analysis Method EPA 5030/8015/8020 Reported Jul 23, 1993 <br /> Attention Paul Supple First Sample# 307-0572 <br /> s' n <br /> 'Z' <br /> TOTAL <br /> ' TOTAL PURGEABLE PETROLEUM HYDROCARBONS with BTEX DISTINCTION <br /> ' Reporting Sample Sample Sample <br /> Analyte Limit LD LD I.D. <br /> mg/kg 307-0572 307-0573 307-0574 <br /> CS-1 (A-D) CS-2 (A-D) CSS (A-D) <br /> Purgeable <br /> Hydrocarbons 10 39 44 62 <br /> Benzene 0 005 0 022 N D N D <br /> ' Toluene 0 005 0 020 Oil 030 <br /> Ethyl Benzene 0 005 0 060 038 070 <br /> Dotal Xylenes 0 005 0 44 2 9 4 6 <br />,Chromatogram Pattern Gasoline Gasoline Gasoline <br /> lQuality Control Data <br /> Report Limit Multiplication Factor 25 10 10 <br /> Date Analyzed 7/22/93 7/21/93 7/21/93 <br /> nstrument Identification HP-4 HP-2 HP-2 <br /> Surrogate Recovery, % 91 103 105 <br /> (QC Limits = 70-130%) <br />�urgeable Hydrocarbons are quantitated against a fresh gasoline standard <br /> Analytes reported as N 0 were not detected above the stated reporting limit <br /> EQUOIA AN iCAL <br /> ennet�l Lee <br /> Laboratory Director <br /> 3070572 ROU <11> <br />