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1551 Industrial Road <br /> (.1 <br /> ' Sequoia ' ` '`A <br /> 94070-4111 <br /> (60)'32- <br /> 50}232-9600 <br /> FAX(650)232-%12 <br /> Analytical www.sequoialabs_mm <br /> t6747 <br /> yanlGeostrategies Project Tosco Sampled: 4110100 <br /> rra Court,Suite D Project Number. UnocalSS#4409 Received: 4110100 <br /> CA 9456$ Project M er. Deanna Hardin R rted: 4124100 <br /> a»n wr rear e r o-i <br /> -MMI �M-W-WOM <br /> Tofa[�Purgeah)e HyiIro¢rbons{ 1 'I")E ani€ e �"�H �F _iy- <br /> Nr <br /> Date Spike Sample QC Reporting Limit Reaov. RPD RPD <br /> Anal Andyzo Level Result Result Units Recov.Limits % Limit % Notes* <br /> Blank(continued) 0040089-BLK <br /> Methyl tert-butyl eth <br /> 1 er 4118100 ND u 5.00 <br /> Surrogate: a,a,a-Tri luorotoluene " 10.0 9.41 " 70.0-130 94.1 <br /> LQ 0040089-BS1 <br /> Benzene 4118100 10.0 9.36 ug/1 70.0-130 93.6 <br /> Toluene 10.0 8.88 70.0-130 88.8 <br /> Ethylbenzene ^ 10.0 8.36 70.0-130 83.6 <br /> Xylenes(total) " 30.0 26.4 70.0-130 88.0 . <br /> Surrogate: a,a,a-Trifluorotoluene <br /> " 10.0 10.2 " 70.0-130 102 <br /> LCS 0040089-BS2 <br /> Forgeable Hydrocarbons as Gasoline 4118100 250 26Q u 70.0-130 104 <br /> Surrogate: a,a,a-Trifluorotoluene 10.0 10.9 70.0-130 109 <br /> Niatrix g ike 0040089-MSI L004061-04 <br /> e 4118100 10.0 ND 9.38 ug/1 <br /> 60.0-140 93.8 <br /> VC:e ^ 10.0 ND 9.03 60.0-140 90.3 <br /> Ethylbenzene 10.0 ND 8.80 60.0-140 88.0 <br /> Xylenes(total) 30.0 ND 26.3 " 60.0-140 87.7 <br /> Surrogate. a,a,a-TriJluorotoluene 10.0 9.32 70.0-130 93.2 <br /> Matriu Spike Dug 0040089- SD L004061-04 <br /> Benzene 4118/00 10.0 ND 9.69 U9A 60.0-140 969 25.0 3.25 <br /> Toluene 10.0 ND 9.37 " 60.0-140 93.7 25.0 3.70 <br /> Ethylbenzene 10.0 ' ND 9.22 60.0440 92.2 25.0 4.66 <br /> Xylenes{total) 30.0 ND 27.8 60.0-140 92.7 25.0 5.54 <br /> Surrogate: a,a,a-Trifluorotoluene " 10.0 9.61 70.0-130 96.2 <br /> Batch: 0040094 Date Prepared: 4119100 Extraction Method: EPA 5030B f M <br /> Alan 0040094-BLK1 <br /> Furgeable Hydrocarbons as Gasoline 4119/00 ND ug/1 50.0 <br /> " ND 0.500 <br /> Benzes 500 <br /> " ND n 0. <br /> ND 0.500 <br /> Ethylbenzene " <br /> Wales(total) :ND " 0.500 <br /> Methyl tent-butyl ether ND " 5.00 <br /> Surrogate: a,a,a-Trijluorotoluene ff10.0 10.0 " 70.0-130 100 <br /> LQ 0040094-= <br /> Sanwa 4119100 10.0. 8.70 ug/l 70.0-130 87.0 <br /> n <br /> Toluene 10.0 8.40 70.0.130 84.0 <br /> pia Analytical-San Carlos "Refer to end of report for text of notes and definitions. <br /> Page 8 of 11 <br />