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- 1551 Industrial Road <br /> Sequoia San <br /> Carl- <br /> tA 94070 <br /> 32-9600 <br /> '�� Analytical FAX(650)Z32-9612 <br /> www sequoialabs com <br /> Gettler-Ryan/Geostrategies(1) Project Unocal(4) <br /> 6747 Sierra Court,Suite J Project Number'Former Unocal#2859,Stockton Reported <br /> Dublin CA,94568 Project Manager Deanna Harding 05/30/02 14 17 <br /> Total Purgeable Hydrocarbon (C6-Ci2) by EPA 8015M and BTEX/MTBE by EPA 8021B <br /> Sequoia Analytical - San Carlos <br /> Reporting <br /> Analyte Result Lunt Units Dilution Batch Prepared Analyzed Method Notes <br /> MW-10(1,205055-10)Water Sampled 05/14/021425 Received 05/14/02 17 50 - <br /> Purgeable Hydrocarbons as Gasoline 100000 25000 ug/l 500 2050059 05/24/02 05/24/02 EPA 8021B P-01 <br /> Benzene 3300 250 <br /> Toluene 18000 250 ^ <br /> Ethylbenzene 3200 250 ^ " <br /> Xylenes(total) 22000 250 " ^ <br /> Methyl tert-butyl ether ND 2500 " ^ " <br /> Surrogate a,a,a-Trifluorotoluene 967% 70-130 " <br /> MW-11 L205055-11 Water Sampled 05/14/02 13 15 Received 05/14/02 17 50 <br /> Purgeable Hydrocarbons as Gasoline 40000 10000 ug/l 200 2050059 05/24/02 05/24/02 EPA 8021B P-02 <br /> Benzene 790 100 <br /> Toluene 360 100 <br /> Ethylbenzene 2100 100 <br /> Xylenes(total) 10000 100 " <br /> Methyl tert-butyl ether ND 1000 <br /> Surrogate a,a,a-Trtfluorotoluene 100% 70-130 " <br /> MW-12 L205055-12 Water Sampled 05/14/02 13 45 Received 05/14/02 17 50 <br /> Purgeable Hydrocarbons as Gasoline ND 50 ug/1 1 2050059 05/24/02 05/24/02 EPA 8021B <br /> Benzene ND 050 <br /> Toluene ND 050 " <br /> Ethylbenzeee 0 56 0 50 " -- <br /> Xylenes(total) 3 1 0 50 <br /> Methyl tert-butyl ether��_..� -- - -- -�ND=n��5 <br /> Surrogate a a,a-Trfluorotoluene _ T_ rT�_ - 982% 70-130 <br /> Sequoia Analytical- San Carlos The results in this report apply to the samples analyzed in accordance with the chain o <br /> 0 <br /> custody document This analytical report must be reproduced in its entirety <br /> Page 5 of 20 <br />