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SEQUOIA ANALYTICAL <br /> t1900 Sates Avenue • Suite LM • Concord,California 94520 <br /> IWO (510) 686-9600 • FAX (510) 686-9689 <br /> Pori Gt3oscience .«.. ,. .. .,.. j "' ;Ib: ' <br /> , / <br /> diem Pro ect ID Mob�' Oa�a3 3o-0i3s-10 Samed: 7/20 1/21/92 <br /> 5870 Stoneridge Drive, Suite 6 Sample Matrbc: Water Recelved: Jul 22, 1992 ' <br /> Pleasanton.CA 94588 Analysis Method: EPA 5030/8015/8020 Reported: Jul 28, 1992 <br /> -2Attentlon: Stephan Rosen First Sample : 207-0740 <br /> TOTAL PURGEABLE PETROLEUM HYDROCARBONS with BTEX DISTINCTION <br /> Reporting Sample Sample Sample <br /> Analyte Limit I.D. I.D. I.D. <br /> Ng/L 207-0740 207-0741 207-0742 <br /> AW-1 AW-3 AW-9 <br /> Purgeable <br /> Hydrocarbons 50 N.D. N.D. N.D. <br /> Benzene 0.5 N.D. N.D. 0.74 <br /> Toluene 0.5 N.D. N.D. N.D. <br /> Ethyl Benzene 0.5 N.D. N.D. N.D. <br /> Total Xylenes 0.5 N.D. N.D. N.D. <br /> Chromatogram Pattern: -• -- •- <br /> Quality Control Data <br /> Report Limit Multiplication Factor. 1.0 1.0 1.0 <br /> Date Analyzed: 7/23/92 7/23/92 7/23/92 <br /> Instrument identification: HP-2 HP-2 HP-2 <br /> Surrogate Recovery,%: 107 107 105 <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 lirniL <br /> •SEQUOIA ANALYTICAL <br /> le 0 20707MALT <2> <br /> Project Manager <br />