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i 404 N.Wiget Lane <br /> Sequoia Walnut Creels,CA 94598 <br /> - (425)988-9600 , <br /> FAX(925)988-9673 <br /> • www.sequotatabs.com IY <br /> ?� <br /> Gettler Ryan,Inc.-Dublin ry Project:eChevron <br /> 6747 Sierra Court Suite l Project Number: Chevron 4 9-3232 Reported: <br /> Dublin CA,94568 Project Manager: Deanna L.Harding 03-Aug-01 07:33 f <br /> Total Purgeable Hydrocarbons (C6-C12), BTEX and MTBE by DHS LUFT - Quality Control <br /> Sequoia Analytical-Walnut Creek <br /> Reporting Spike Source %REC RPD ! <br /> Analyte Result Limit.. Units' ' "Level Result %REC " Limits RPD Limit Notes <br /> Batch 1G20003-EPA 5030E PIT - - <br /> .Matrix Spike Dup(1G20003-MSDI) Source:W107262-09 Prepared:20-Jul-01 Analyzed:25-Jul-01 <br /> Benzene 15.9 0.50 ugA 20.0 ND 79.5 70-130 12.0 20 <br /> Toluene 17.5 0.50' 20.0 ND 87.5 '70-130 5.28 20 <br /> Ethylbenzene 18.3 0.50. . 20.0 ND 91.5 70-130 13.4 20 <br /> Xylenes(total) 54.7 0.50Y 60.0 ND 91.2 70-130 3.72 20 <br /> Surrogate:a,a.a-Triuorotoluene 27.4 30.0 91.3 70-130 <br /> I <br /> 3 , <br /> Sequoia Analytical-Walnut Creek The results in this report apply to the samples analyzed in accordance with the chain of <br /> custody document.-This analytical report must be reproduced in its entirety. <br /> Page 7 of 10 <br />