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S <br /> 1551 Industrial Road <br /> Sequoia San Carlos,CA 94070-4111 <br /> (650) 232-9600 <br /> Analytical FAX(650)232-9612 <br /> Gettler-Ryan/Geostrategies(1) Project: Tosco(2) Sampled: 2122100 . <br /> 6747 Sierra Court,Suite D Project Number: UNOCAL SS#.11195 Received: 2/22100 <br /> Dublin,CA 94568 Project Manager: Deanna Harding Reported: 317/00 <br /> IMMMOMM <br /> -NOOMma=- -no <br /> Date Spike Sample QC Reporting Limit Recov. RPD RPD <br /> Analyte Analyzed Level Result Result Units Rec ov.Limits % Limit % Notes* <br /> LCS 0030021-BS2 <br /> Purgeable Hydrocarbons as Gasoline 313/00 250 240 UO70.0-130 96.0 <br /> Surrogate: a,a,a-Trifluorotoluene 10.0 12.7 70.0-130 117 <br /> Matrix Spike_ 00300 L003018-01 <br /> Benzene 3/3/00 10.0 ND 8.00 ugll 60.0-140 80.0 <br /> Toluene " 10.0 ND 7.78 60.0-140 77.8 <br /> Ethylbenzene 10.0 ND 7.79 60.0-140 77.9 <br /> Xylenes(total) 30.0 ND 22.4 60.0-140 74.7 <br /> Surrogate: a.a,a-Tnfluorotoluene 10.0 9.78 70.0-130 97.8 <br /> Matrix Spike Dun 0030021-MSDL 1,003018-01 <br /> Benzene 3/3/00 10.0 ND 8.42 ugll 60.0-140 84.2 25.0 5.12 <br /> Toluene It10.0 ND 8.75 60.0-140 87.5 25.0 11.7 <br /> Ethylbenzene 10.0 ND 9.04 60.0-140 90.4 .25.0 14.9 _Z <br /> Xylenes(total) <br /> 30.0 ND 25.9 60.0-140 86.3 25.0 14.4 ' <br /> Surrogate: a,a,a-Trifluorotoluene 10.0 10.9 70.0-130 109 <br /> Sequoia Analytical-San Carlos *Refer to end of report for text of notes and definitions. <br /> Page 18 of 20 <br />