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1551 Industrial Road <br /> Sequoia San Carlos, CA 94070-4111 <br /> 00 <br /> FAX(650)232-9612- <br /> Analytical <br /> Gettler-RyaolGeostrategies(1) Project: Tosco(2) Sampled: 2122/00 <br /> 6747 Sierra Court,Suite D Project Number: UNOCAL SS#11195 Received: 2/22/00 <br /> Dublin,CA 94568 Project Manager: Deanna Harding Reported: 317100 <br /> U <br /> Date Spike Sample QC Reporting Limit Recov. RPD RPD <br /> rAalyte Analyzed Level Result Result Units Recov.Limits % Limit % Notes* <br /> Blank continued 003001.1-BLIC2 <br /> Toluene 3/3/00 ND ug/l 0.500 <br /> ND It 0.500 <br /> Ethylbenzene <br /> Xylenes(total) ND TI 0.500 <br /> Methyl tert-butyl ether ND 5.00 <br /> Surrogate: a.a,a-Difluorotoluene 10.0 9.49 70.0-130 94.9 <br /> LCs 0030011-BSI <br /> Benzene 3/2100 10.0 8.10 ug/l 70.0-130 81.0 <br /> Toluene " 10.0 7.72 70.0-130 77.2 <br /> Ethylbenzene 10.0 8.06 " 70.0-130 80.6 <br /> Xylenes(total) 30.0 24.2 70.0-130 80.7 <br /> Surrogate: aAa-Trifluorotoluene 10.0 8.13 70.0-130 81.3 <br /> LCS 0030011-BS2 === <br /> Purgeable Hydrocarbons as Gasoline 312/00 250 227 ug/l 70.0=130 90.8 _? <br /> } <br /> Surrogate: a;a,a-Tris luorotoluene 10.0 7.92 it 70.0-130 79.2 <br /> LCS 0030011-BS4 <br /> Purgeable Hydrocarbons as Gasoline 313100 250 206 ugll 70.0-130 82.4 <br /> Surrogate: a,a,a-Tnfluorotoluene 10.0 9.48 70.0-130 94.8 <br /> LCS 0030011-BSS <br /> Benzene 313/00 10.0 8.44 ug/l 70.0-130 84.4 <br /> 10.0 8.10 70.0-130 81.0 <br /> Toluene <br /> Tolueenzene " . 10.0 8.39 70.0-130 83.9 <br /> Ethylb30.0 25.0 70.0-130 83.3 <br /> Xylenes(total) <br /> 70.0-130 89.D <br /> Surrogate: a,a,a-Trifluorotoluene 10.0 8.90 <br /> Matrix Spike 0030011=MS1 L002212-10 <br /> Purgeable Hydrocarbons as Gasoline 313/00 250 ND 215 U.9/160.0-140 86.0 <br /> Surrogate: a,a,a-Trifluorotoluene " 10.0 7.94 F, 70.0-130 79.4 <br /> Matrix Spike Duv 0030011-MSD1 L002212-10 <br /> Purgeable Hydrocarbons as Gasoline 313100 250 ND 208 ug/l 60.0-140 83.2 25.0 3.31 <br /> Surrogate: a,a,a-Trifluorotoluene IrI0.o 8.16 70.0-130 81.6 <br /> Batch: 0030012 Date Prepared: 3/2100 Extraction Method: EPA 5030B IPM <br /> Blank 0030012-BLKI <br /> Purgeable Hydrocarbons as Gasoline 312/00 IND ug/l 50.0 <br /> Benzene " ND 11 0.500 <br /> Toluene ND 0.500 <br /> Sequoia Analytical-San Carlos *Refer to end of report for text of notes and definitions. <br /> Page 16 of 20 <br />