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1551 Industrial Road <br /> Se qu o 1 a San Carlos, CA 94070-4111 <br /> 4 t-5)- Analytical (650) 232-9600 <br /> alytical FAX(650) 232-9612 <br /> T.� <br /> Gettler-Ryan/Geostrategies(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 R orted: 3/7/00 <br /> Date Spike Sample QC Reporting Limit Recov. RPD RPD <br /> Analyte Analyzed Level Result Result Units Recov.Limits % Limit % Notes* <br /> Batch: 0030003 Date Pre ared: 311100 Extraction Method: EPA 5030B FE/Tl <br /> Blank 0030003-BLK1 <br /> Purgeable Hydrocarbons as Gasoline 311100 ND ug/1 50.0 <br /> BND 0.500 <br /> Benzene <br /> „ ND ^ 0.500 <br /> Toluene <br /> Ethylbenzene ND 0.500 <br /> 0.500 <br /> Xylenes(total) " ND " <br /> ND 5.00 <br /> Methyl tert-butyl ether <br /> „ <br /> Surrogate. a,a,a-Trifluorotoluene 10.0 8.74 70.0-130 87.4 <br /> LCS 0030003-BSI <br /> Benzene 3/!/00 10.0 $.73 ug/1 70.0-130 87.3 <br /> Toluene 11 10.0 8.44 70.0-130 84.4 <br /> It 10.0 8.81 " 70.0-130 88.1 <br /> Ethylbenzene �� <br /> Xylenes(total) 30.0 26.1 70.0-130 87.0 <br /> Surrogate: a,a,a-Trifluorotoluene <br /> 10.0. 8.45 " 70.0-130 84.3 <br /> LCS 0030003-BS2 <br /> Purgeable Hydrocarbons as Gasoline 3/1/00 250 224 ug/l 70.0-130 89.6 <br /> Surrogate: a,a,a-Trifluorotoluene IF 10.0 8.29 IF 70.0-130 82.9 <br /> Matrix Spike 0030003-MS1 L002264-02 <br /> Bye 311/00 10.0 ND 9.40 . ug/1 60.0-140 94.0 <br /> Toluene 10.0 ND 9.03 60.0-140 903 <br /> Ethylbenzene " 10.0 ND 9.40 " 60.0-140 94.0 <br /> Xylenes(total) <br /> + 30.0 ND 27.6 60.0-140 92.0 <br /> Surrogate: a,a,a-Trifluorotoluene " 10.0 9.33 70.0-130 93.3 <br /> Matrix Spike Duv 0030003-MSDI L002264-02 <br /> Bye 3/1/00 10.0 ND 9.30 u9/1 60.0-140 93.0 25.0. 1.07 <br /> 9.05 60.0-140 90.5 25.0 0.221 <br /> Toluene 10.0 ND <br /> Ethylbenzene 10.0 ND 9.37 60.0-140 93.7 25.0 0.320 <br /> Xylenes(total) <br /> '+ 30.0 ND 27.9 60.0-140 . 93.0 25.0 1.08 <br /> Surrogate: a,a,a-Trifluorotoluene " 10.0 8.71 " 70.0-130 87.1 <br /> Batch: 0030004 Date Prepared: 311/00 Extraction Method: EPA 5030B TPS <br /> i <br /> Blank 0030004-BLKI <br /> Purgeable Hydrocarbons as Gasoline 311/00 ND ug/l 50.0 <br /> Benzene ND 0.500 <br /> ++ 0.500 <br /> Toluene <br /> Ethylbenzene ND 0.500 <br /> „ <br /> Xylenes(total) " ND 0.500 <br /> Sequoia Analytical-San Carlos *Refer to end of report for text of notes and definitions. <br /> i <br /> Page 14 of 20 <br />