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404 N Wiget Lane <br /> Walnut Geek CA 94598 <br /> Sequoia (925)988-9600 <br /> 4 FAX(925)988-9673 <br /> ,!D— Analytical www sequoialatu corn <br /> Gettler Ryan,Inc -Dublin Project Chevron <br /> 6747 Sierra Court Suite 7 Project Number Chevron#9-8264 Reported <br /> Dublin CA,94568 Project Manager Deanna L Harding 29-Dec-00 08 15 <br /> Total Purgeable Hydrocarbons (C6-C12), BTEX and MTBE by DHS LUFT <br /> Sequoia Analytical -Walnut Creek <br /> Reporting <br /> Analyte Result lunit Units Dilution Batch Prepared Analyzed Method Notes <br /> MW-1 (W012170-01)Water Sampled 04-Dec-00 08 15 Received 06-Dec-00 16 10 <br /> Purgeable Hydrocarbons ND 50 ug/1 1 OL14001 14-Dec-00 14-Dec-00 EPA <br /> 8015M/8020 <br /> Benzene ND 050 <br /> Toluene ND 050 <br /> Ethylbenzene ND 050 <br /> Xylenes(total) ND 050 <br /> Methyl tert-butyl ether ND 2 5 " <br /> Surrogate a,a a-Tri luorotoluene 980% 70-130 " <br /> MW-2(W012170-02)Water Sampled 04-Dec-00 08 36 Received 06-Dec-00 16 10 <br /> Purgeable Hydrocarbons ND 50 ug/1 1 OL14001 14-Dec-00 14-Dea00 EPA <br /> 8015M/8020 <br /> Benzene ND 050 •' " " " " <br /> Toluene ND 050 <br /> Ethylbenzene ND 0 500 <br /> Xylenes(total) ND 050 " <br /> Methyl tent-butyl ether 29 2 5 <br /> Surrogate a,a,a-Tnfluorotoluene <br /> 990% 70-130 " " <br /> MW-4(W012170-03)Water Sampled 04-Dec-00 09 01 Received 06-Dec-00 16 10 1?-01 <br /> Purgeable Hydrocarbons 66000 5000 ug/1 100 OL14001 14-Dec-00 14-Dec-00 EPA <br /> 8015M/8020 <br /> Benzene 550 50 <br /> Toluene 9600 50 <br /> Ethylbenzene 2900 50 <br /> Xylenes(total) 17000 50 " <br /> Methyl tent-butyl ether 7800 250 " <br /> Surrogate a,a,a-Trifluorotoluene 113 % 70-130 <br /> Sequoia Analytical -Walnut Creels The results in rhes report apply to the samples analyced in accordance with the chain of• <br /> custody document This analytical report must be reproduced in its entirety <br /> i <br /> Page 2 of 22 <br />