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• 1551 Industrial Road <br /> Sequoia sen carios.C+94070-41 11 <br /> (650)232-9600 <br /> FAX(650)232-9612 <br /> Analytical %www sequol.`abs`om <br /> Gettler-Ryan/Ge0s1rategies(1) P%lett Unocal(1) Sampled 8131100 to 911100 <br /> 6747 Sierra Court,Suite J Protect Number Former Unocal SS#(0187) Received 911/00 <br /> Dublin,CA 94568 Project Manager Deanna Hardmg R 9/18100 <br /> Rn�11-7 En'11,411 -NOIT-1 <br /> Date Spike Sample QC Reporting Limit Recov RPD RPD <br /> Anal Analyzed Level Result Result Units Recov Limits % Lmut % Notes* <br /> LC5(continued) 0090067-BS2 <br /> Surrogate a,a,a-Tnfluorotoluene 9/13/00 100 104 u9/1 700-130 104 <br /> Matrix Snike 0090067-MSI L009012-08 <br /> Purgeable Hydrocarbons as Gasoline 9114/00 250 ND 210 ug/l 60 0-140 84.0 <br /> Surrogate a,a,a-Tnfluorotoluene !0 0 117 700-130 117 <br /> Matrix Spike Duo 0090067-MSD) L009012-08 <br /> Purgeable Hydrocarbons as Gasoline 9114100 250 ND 197 ug/1 60 0-140 78.8 250 6.39 <br /> Surrogate a,a,a-Pri luorotoluene 10 0 111 " 700-130 111 <br /> Batch. 002"72 Date Prepared- 9/14100 ExtractionMethod- EPA 5030B IPM <br /> Blank Ift0090072-BLX1 <br /> ble Hydrocarbons as Gasoline 9/14/00 ND 119/1 50.0 <br /> e " ND 0.500 <br /> Toluene ND " 0'500 <br /> ND 0'� <br /> Ethylbenzene " <br /> ND 0.500 <br /> Xylenes(total) <br /> Methyl tert-butyl ether " ND 5.00 <br /> Surrogate a,a,a-Tnfluorotoluene " 100 126 700-130 126 <br /> LCS 0090072-BSl <br /> Bye 9/14/00 10 0 11 1 ug/l 700-130 111 <br /> Toluene 100 101 " 700-130 101 <br /> Ethylbenzene 100 101 700-130 101 <br /> Xylenes(total) " 300 307 700-130 102 <br /> it 70 0-130 112 <br /> Surrogate a,a,a-Trrfluorotoluene 10 0 112 <br /> LO 0090072-BS2 <br /> Purgeable Hydrocarbons as Gasoline 9114100 250 237 ug/1 70 0-130 94 8 <br /> Surrogate a,a,a-Tri luorotoluene " 100 121 700-130 121 <br /> Matrix 0090072-MSI L009020-10 <br /> Be 9114/00 10 0 ND 11 6 119/1 60 0-140 116 <br /> Benzene <br /> Toluene 100 ND 104 600-140 104 <br /> Ethylbenzane " 100 ND 116 600-140 116 <br /> Xylenes(total) " 300 ND 318 " 600-140 106 <br /> Surrogate a,a,a-Tnfluorotoluene " 100 118 700-130 118 <br /> Matrix Spike Dun 00900 2 MSD) L009020-10 <br /> 9/14/00 100 ND 115 ug/l600-140 115 250 0866 <br /> Wee <br /> " too ND 106 " 600-140 106 250 1.90 <br /> Sequoia Analytical-San Carlos *Refer to end of report for text of notes and definitions <br /> Page 14 of 19 <br />