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MAR-'27-199e 115:47 P.02/10 <br /> Sequoia So Chesapeake Drive Redwood City,CA 94063060) 364.9600 FAX(650)364-9233 <br /> 404N.�Viget Lane Walnut Creek,CA 94598 (510) 988.96W FAX(510)988-9673 <br /> Analytical 819 Striker Avenue,Suite 8 Sacramento,CA 95834 (916) 921-9600 FAX (916)921-0100 <br /> ..... m:...... .......: !: <br /> ATC Client Prol d:ID. 15598, D'Arcy Road Lathrop Sam�ie03/25/98 <br /> 11 1260 Graphics Drive Sample Descript: DR-West Bottom-14' Received: 03/26/98 <br /> Modesto, CA 95351-1502 Matrix: SOLID Extracted: 03/26/98 <br /> Analysis Method: 6015Mod/8020 Analyzed: 03/26/98 <br /> n: Number: H14.11 a orted: 27 <br /> Attention, Jeanne Homse Lab Num 9803 A 03 98 <br /> e <br /> _...-...� ._........ _......_....... -..........--........... .................._.... ... p....._....__...1. <br /> ..::.... inmu loin .............. <br /> QC Batch Number: GC032698BTEXEXC <br /> Instrument ID: GCHP22 <br /> Total Purgeable Petroleum Hydrocarbons (TPPH) with BTEX and MTBE <br /> Analyte Detection Limit Sample Results <br /> mg/Kg mg/Kg <br /> TPPHasGas .. ................. 5.0 .................... 19 <br /> Methyl t-Butyl Ether 0:12 N.D. <br /> Benzene 0:025 N.D. <br /> Toluene 0.025 N.D. <br /> Ethyl Benzene 0.025 .................... 0.056 <br /> Xylenes (Total) .................... 0.025 .........____....... 0.43 <br /> Chromatogram Pattern: <br /> Gas& Unidentified HC .................... .........._._....... >C10 <br /> Surrogates Control Limits% % Recovery <br /> Tdfluorotoluene 70 130 108 <br /> 4-Bromofluorobenzene 60 140 270 <br /> Analytes reported as N.D.were not present above the stated limit of detection. <br /> SEQUOIA ANALYTICAL - ELAP 01210 <br /> Project Manager Page 21 <br />