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8;9 Sinker Ave Ste 8 <br /> Sequoia Sacramento,CA 95834 <br /> Analytical (916)921-9600 <br /> s FAX(916)921-0100 <br /> www sequoialabs conn <br /> Gettler-Ryan-Dublin Project Former Unocal 2859, Stockton,CA 5303055 <br /> 6747 Sierra Court,Ste ] Project Number N/A' s} Reported ' <br /> Dublin CA,94568 Project Manager Deanna L Harding t W03/19/03 18 34 <br /> Gasoline (2-Methylpentane to 1;2,4-Trimethylbenzene) and BTEX by�EPA 8015M and 8021B <br /> Sequoia Analytical - Sacramento r <br /> , Reporting <br /> Analyte Result Lunit Units Dilution Batch Prepared Analyzed Method Notes <br /> MW-13(5303055-13)Water Sampled 02/27/03 14 15 Received 03/03/0312 15 <br /> Purgeable`Hydrocarbons- ' ND 1 50 ugly -1 3030129, 03/11/03 -03111103 EPA 801518021' - <br /> Benzene ND 050 <br /> Toluene ND 050 <br /> Ethylbenzene ND 0 50 <br /> Xylenes(total) ND 050 <br /> Methyl tert-butyl ether ND 2 0 <br /> Surrogate a,a,a-Trtfluorotoluene ' 84 % 60-140 <br /> MW-14(S303055-14)Water Sampled 02/27/03 15 00 Received 03/03/03 12 15 _ <br /> Purgeable Hydrocarbons ND 50 ug/1 1 3030129 0311 1103 03/11/03 r EPA 8015/8021 <br /> t <br /> Benzene ND 0 50 " <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-Trijluorotoluene 86 % 60-140 " <br /> MW-15(S303055-15)Water Sampled 02/27/03 16 40 Received 03/03/03 12 15 <br /> Purgeable Hydrocarbons 270 50 ug/l 1 .3030129 03/12/03 03/12/03 EPA 8015/8021 <br /> Benzene 0.70 - 050 <br /> Toluene _ ND 0 50 " <br /> Ethylbenzene 26' 0 50 <br />_X_ylenes,(total)------ ........39.._ __ _ -0 50 <br /> Methyl tert-butyl ether - ND, 2 0 <br /> -Surrogate a,a,a-Trtlluorotoluene= - - _ -=80%-- 60=140- <br /> , <br /> Sequoia Analytical - Sacramento The i esults to this r epor i apply to the samples analyzed in accordance with the chain o <br /> custodv document Unless otherwise stated results at a reported on a wet weight basis <br /> This analytical report must be)eproduced in its enuren> <br /> , <br /> Page 7 of 24 <br />