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1551 Industrial Road <br /> Sequoia San Carlos CA 44070 <br /> Analytical (650)232 9600 <br /> FAX equoi labs c 12 <br /> WWW sequoialabs corn <br /> *r-Ryan/Geostrategies(l) Prosect Unocal(4) L208029 <br /> Sterna Court, Suite 1 Project Number Former Unocal 112859 Stockton Reported <br /> Dublin CA 94568 Project Manager Deanna Harding 08/28/02 11 23 <br /> Total Purgeable Hydrocarbons (C6-C10) by EPA 8015B modified, BTEXM by EPA 8021B <br /> Sequoia Analytical - Morgan Hill <br /> Reporting <br /> Analyte Result Limit Units Dilution Batch Prepared Analyzed Method Notes <br /> ?%1W-4(L208029-04)Water Sampled 08/09/02 13 30 Received 08/11/02 11 30 <br /> Gasoline Range Organics(C6-Cl 0) ND 50 ug/1 1 2H22001 08/22/02 08122/02 8015Bm/8021B <br /> Benzene ND 0 50 <br /> Toluene ND 0 50 <br /> Ethylbenzene ND 0 50 <br /> Xylenes(total) ND 050 <br /> Methyl tent-butyl ether ND 2 5 " <br /> Surrogate a,a,a-Trifinorotoluene 876 % 70-130 " <br /> MW-5(L208029-05)Water Sampled 08/09/02 12 02 12 5 5 Received 08/11/02 11 30 <br /> -„ <br /> Gasoline Range Organics(C6-C10) ND 50 ug/l 1 21122001 08/22/02 08/22/02 8015Brn/8021B <br /> Benzene ND 0 50 ” <br /> Toluene ND 0 50 ^ " <br /> Ethylbenzene ND 0 50 <br /> Xylenes(total) ND 0 50 " <br /> Methyl tert-butyl ether ND 2 5 <br /> r#ate a,a,a-Trifluorotoluene 892 % 70-130 " <br /> , -6(L208029-06)Water Sampled 08/10/020953 Received 08/11/02 11 30 <br /> Gasoline Range Organics(C6-C10) ND 50 ugll 1 2H22001 08/22/02 08/22/02 8015Bm/8021B <br /> Benzene ND 0 50 " <br /> Toluene ND 050 ^ " <br /> Ethylbenzene ND 0 50 <br /> Xylenes(total) ND 0 50 <br /> Methyl ten-butyl ether ND 2 5 <br /> Surrogate a,a a-Triuorololuene 875 % 70-130 " <br /> is Analytical -San Carlos The results in this report apply to the samples analyzed in accordance with the chain of <br /> cusiod),document Unless otherwise stated,results are reported on a wet iveight basis <br /> This analytical report must be reproduced in its emirery <br /> Page 8 of 25 <br />