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it', 11 <br /> 819 Striker Avenue Suite 8 <br /> Sequoia Sacramento CA 95834 <br /> (916)921-9600 <br /> Analytical FAX 921-0100 <br /> FAX <br /> sequoequoialabs com <br /> SECQR International-Rancho Cordova Project Chevron 9-2396,Acampo,CA <br /> 3017 Kilgore Road, Suite 100 Project Number 077 43485 150 Reported <br /> Rancho Cordova CA,95670 Project Manager Roger Hoffmore 05/16/01 15 45 <br /> Total Purgeable Hydrocarbons (C6-C12) and BTEX by DHS LUFT - Quality Control <br /> Sequoia Analytical - Sacramento <br /> Reporting Spike Source %REC RPD <br /> Analyte Result Limit Units Level Result %REC Limits RPD Limit Notes <br /> Batch 1050075- EPA 5030B(MeOH <br /> Blank(1050075-BLKI) Prepared&Analyzed 05/04/01 <br /> Purgeable Hydrocarbons ND 1 00 mg/kg <br /> Benzene ND 000500 " <br /> Toluene ND 000500 " <br /> Ethylbenzene ND 000500 " <br /> Xylenes(total) ND 000500 " <br /> Surrogate a,a a-Triuorotoluene 0205 0200 102 60-140 <br /> LCS(1050075-BS1) Prepared&Analyzed 05/04/01 <br /> Benzene 0207 000500 mg/kg 0200 103 70-130 <br /> Toluene 0 225 000500 0200 112 70-130 <br /> Ethylbenzene 0 237 000500 0200 118 70-130 <br /> Jos(total) 0 605 000500 „ 0 600 101 70-130 <br /> ate a,a a-Triuorotoluene 0 212 0200 106 60-140 <br /> Matrix Spike(1050075-MSI) Source 5105017-02 Prepared&Analyzed 05/04/01 <br /> Benzene 0 177 000500 mg/kg 0200 ND 885 60-140 <br /> Toluene 0 192 000500 0200 ND 960 60-140 <br /> Ethylbenzene 0206 000500 0200 ND 103 60-140 <br /> Xylenes(total) 0 520 000500 0 600 ND 867 60-140 <br /> Surrogate a a a-Triuorotoluene 0118 0200 109 60-140 <br /> Matrix Spike Dup(1050075-MSD1) Source 5105017-02 Prepared 05/04/01 Analyzed 05/05/01 <br /> Benzene 0 183 000500 mg/kg 0200 ND 91 5 60-140 333 25 <br /> Toluene 0 199 000500 0200 ND 995 60-140 3 58 25 <br /> Ethylbenzene 0 211 000500 0200 ND 105 60-140 240 25 <br /> Xylenes(total) 0 535 000500 0 600 ND 892 60-140 2 84 25 <br /> Surrogate a a a-Trifluorotoluene 0 227 0200 113 60-140 <br /> oia Analytical-Sacramento The results in this report apply to the samples analyzed to accordance with the chain of <br /> custody document This analytical report must be reproduced in its entirety <br /> ,per Page 10 of 16 <br /> `etj' <br />