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819 Sinker Ave Ste 8 <br /> Sacramento CA 95834 <br />,!Z� Sequoia (9 16)921-9600 <br /> FAX(916)921-0100 <br /> 140 Analytical www sequoialabs com <br /> GRyan-Dublin Project Former Unocal 2859,Stockton,CA 5303055 <br /> 67 terra Court,Ste J Project Number NIA Reported <br /> Dublin CA,94568 Project Manager Deanna L Harding 03/19/03 18 34 <br /> f 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-3 5303055-04 Water Sampled 02/27/03 11 55 Received-03/03/0312 15 <br /> Purgeable Hydrocarbons ND 50 ugll 1 3030129 03/10/03 03/10/03 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-Trrhuorotoluene 89% 60-140 " <br /> MW4 5303055-05 Water Sam led 02/28/03 12 30 Received-03/03/03 12 15 <br /> Purgeable Hydrocarbons ND 50 ug/I 1 3030129 03/10/03 03/10/03 EPA 80 1518021 <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 /> 5to a,a,a-Trifluorotoluene 92% 60-140 " <br /> 41*5303055-06 Water Sampled 02/28/0311 50 Received 03/03/0312 15 <br /> Purgeable Hydrocarbons ND 50 ug/I 1 3030129 03/10/03 03/10/03 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 D " <br /> Surrogate a,a,a-Trifluorotoluene 94 % 60-140 " <br /> ola Analytical - Sacramento The results in this report apply to the samples analyzed in accordance with the chain of <br /> custody document Unless otherwise stated t esults are reported an a wet weight basis <br /> This analvncal report must be reproduced in its encu etv <br /> Page 4 of 24 <br />