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Sequoia 1551 tndustnal Road <br /> San Carlos CA 94070 <br /> (650)232-9600 <br /> �► Analytical FAX(650)232-9612 <br /> www sequoialabs,om <br /> Gettler-Ryan/Geostrategies(1) Project Tosco(1) <br /> 6747 Sierra Court, Suite J Project Number Tosco#01205(C1rCle K),Lathrop Reported <br /> Dublin CA,94568 Project Manager Deanna Harding 05/13/02 09 26 <br /> Total Purgeable Hydrocarbon (C6-C12) by EPA 8015M and BTEX/MTBE by EPA 8021B <br /> Sequoia Analytical - San Carlos <br /> Reporting <br /> Analyte Result Limit Units Dilution Batch Prepared Analyzed Method Notes <br /> MW-9(L204130-1 0)Water Sampled 04/29/02 13 45 Received 04/29/02 17 20 <br /> Purgeable Hydrocarbons as Gasoline 18000 2500 ug/1 50 2050018 05/09/02 05/10/02 EPA 8021 B P-02 <br /> Benzene 77 25 <br /> Toluene 150 25 <br /> Ethylbenzene 1000 25 <br /> Xylenes(total) 3000 25 <br /> Methyl tert-butyl ether ND 250 <br /> Surrogate a,a a-Trtfluorotoluene 794% 70-130 <br /> Sequoia Analytical - San Carlos The results rn this report apply to the samples analyzed in accordance with the ch.,�& <br /> custody document This analytical report must be reproduced in its entirety <br /> Page 5 of 14 <br />