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Carlos. <br /> Industrial <br /> Sequoia <br /> San cantos,.cn 94070-4111 <br /> (6%)232-9600 <br /> FAX(650)232-%12 <br /> Analytical www.sequoiatabs.00m- <br /> Getty-Ryan/Geostrategies(1} Project: Tosco(2) Sampled: 8128/00 <br /> 6747 Sierra Court,Suite 7 Project Number: Unocal SS#11195116500 So.Interstate I-5,LathYbpreived: 8/28/00 <br /> Dublin,CA 94568 Project Manager: Deanna Hardin : 9/14/00 <br /> xg <br /> Date Spike Sample QC Reporting Limit Reoov. RPD RPD <br /> lAnalyte Analyzed Level Result Result Units Recov.Limits % Limit % Notes* <br /> Blank continued) 0090020-BLKI <br /> Methyl tert-butyl ether 916/00 ND ug/1 5.00 <br /> Surrogate: a,a,a-Trifluorotoluene " 10.0 11.9 " 70.0-130 119 <br /> 0090020-BSI <br /> Benzene 916/00 10.0 10.7 ug/1 70.0.130 107 <br /> Toluene 10.0 10.3 70.0-130 103 <br /> Ethylbenzene. " 10.0 9.86 70.0-130 98.6 <br /> Xylenes(total) 30.0 29.6 70.0-130 98.7 <br /> Surrogate. a,a,a-Tris luorotoluene " 10.0 11.2 " 70.0-130 112 <br /> LCS 0090020-BS2 <br /> Purgeable Hydrocarbons as Gasoline 9/6/00 250 210 ugn 70.0-130 84.0 <br /> Surrogate: a,a,a-Trifluorwohme 10.0 11.1 70.0-130 111 <br /> Matrix SL 0090020•MS1 L009195-07 rr 3 <br /> Benzene 9/6/00 10.0 ND 11.2 ugll 60.0-140 112 s <br /> Toluene 10.0 ND 10.8 60.0-140 108 <br /> Ethylbenzene TM 10.0 ND 10.6 60.0-140 106 <br /> Xylenes(total) ^ 30.0 ND 31A 60.0-140 105 <br /> Surrogate. a,a a-Trffluorotoluene 10.0 11.3 " 70.0-130 113 <br /> Matrix Spike Dun 0090020-MSD1 L009195-07 <br /> Benzene 9/6/00 10.0 ND 9.40 ug/1 60.0-140 94.0 25.0 17.5 <br /> Toluene " 10.0 ND 9.18 n 60.0-140 91.8 25.0 16.2 <br /> Ethylbenzene ^ 10.0 ND 8.97 60.0.140 89.7 25.0 16.7 <br /> Xylenes(total) " 30.0 ND 27.2 n60.0-140 90.7 25.0 14.6 <br /> Surrogate: a,a,a-Trifluorotoluene 10.0 9.54 " 70.0-130 95.4 <br /> Batch: 0090037 Date Prepared: 9/8/00 Extraction Method: EPA 5030B IPI'I'1 <br /> Blank 0090037-BLK1 <br /> Purgeable Hydrocarbons as Gasoline 9/8100 ND ug/1 50.0 <br /> Bene ND 0.500 <br /> Toluene ^ ND 0.500 <br /> Ethylboume ^ ND <br /> 0S00 <br /> Xylenes(total). ND 0.500 <br /> Methyl test-butyl ether ^ ND 5.00 <br /> Surrogate. a,a,a-Trifluorotoluene " 10.0 10.4 70.0.130 104 <br /> LCS 0090037-BSI <br /> Benzene 918/00 10.0 11.0 ug/l 70.0-130 110 <br /> Toluene 10.0 10.2 ^ 70.0-130 102 <br /> Sequoia Analytical-San Carlos -Refer to end of report for text of notes and definith s. <br /> k <br /> Page 15 of 20 <br />