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819 Sinker Ave Ste 8 <br /> Sequoia Sacramento,CA 95834 <br /> (916)921-9600 <br /> Analytical FAX(916)921 0100 <br /> www sequoialabs corn <br /> t <br /> er-Ryan-Rancho Cordova Project Former Unocal 2859,Stockton,CA S303555 <br /> Gold Camp Dr Ste 170 Project Number• NIA Deported <br /> ho Cordova CA,95670 Project Manager Geoffrey D Fisse 04/04/03 18 05 <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 Linut Units Dilution Batch Prepared Analyzed Method Notes <br /> NP-1 (5303555-04)Water _Sa_m_ pled 03/21/03 08 55 Received 03/21/03 14 20 <br /> Purgeable Hydrocarbons ND 50 ug/l 1 3030405 03/25/03 03/26/03 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 2 0 " <br /> Surrogate a,a,a-Trifluorotoluene 78% 60-140 <br /> oia 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 an a wet weight basis <br /> This analytical report must be reproduced in its entirety <br /> Page 4 of 8 <br />