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819 Sinker Ave Ste 8 <br /> Sacramento CA 95834 <br /> Sequoia (9l6)921-9600 <br /> FAX Analytical wwseq 6islabs 100 <br /> www sequoialahs corn <br /> i <br /> Gettler-Ryan-Dublin Project Former Unocal 2859,Stockton,CA S308609 <br /> 6747 Sierra Court,Ste ! Project Number NIA Reported <br /> Dublin CA,94568 Project Manager Deanna L Harding 09/11/03 14 34 <br /> Gasoline (2-Methylpentane to 1,2,4-Trimethylbenzene) and BTEX by EPA 8015M and 8021B <br /> Sequoia Analytical - Sacramento <br /> Reporting <br /> Analyte Result Limit Units Dilution Batch Prepared Analyzed Method Notes <br /> MW-21 (5308609-22)Water Sampled 08/26/03 14 40 Received 08/28/03 14 30 <br /> Purgeable Hydrocarbons ND 50 ug/1 1 3090015 09/02/03 09/02/03 EPA 8015/8021 <br /> Benzene ND 050 " <br /> Toluene ND 050 <br /> Ethylbenzene ND 050 " <br /> Xylenes(total) ND 050 " <br /> Methyl tert-butyl ether ND 20 " <br /> Surrogate a,a,a-Tri luorotoluene 86% 60-140 <br /> NP-1 (5308609-23)Water Sampled 08/27/03 13 35 Received 08/28/03 14 30 <br /> Purgeable Hydrocarbons ND 50 ug/l 1 3090015 09/02/03 09/02/03 EPA 8015/8021 <br /> Benzene ND 050 <br /> Toluene ND 050 " <br /> Ethylbenzene ND 050 " <br /> X (total) ND 050 <br /> tert-butyl ether ND 20 " <br /> Surrogate a,a,a-Trifluorotoluene 91 % 60-140 " <br /> 1a Analytical - Sacramento The results in this report apply to the samples analyzed in accordance with the chain of <br /> custody document Unless otherwise stated results are reported on a wet weight bases <br /> This analytical report must be reproduced in its entirety <br /> Page 10 of 20 <br />