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819 Sinker Ave Ste 8 <br /> Sactamanto,CA 95834 <br /> Sequoia (916)921-9600 <br /> FAX(916)921-0100 <br /> Analytical www se9uoialabs com <br /> r67!crra <br /> Ryan-Dublin Project Former Unocal 2859,Stockton,CA S303055 <br /> Court,Ste J Project Number N/A Reported <br /> CA,94568 Project Manager Deanna L Harding 03/19/03 18 34 <br /> Gasoline (2-Metbylpentane to 1,2,4-Trlmetbylbenzene) and BTEX by EPA 8015M and 8021B <br /> Sequoia Analytical - Sacramento <br /> Reporting <br /> Analyte <br /> Result Limit Units Dilution Batch Prepared Analyzed Method Notes <br /> MW-9 5303055-10 Water Sampled 02/28/0314 15 Received: 03/03/0312 15 <br /> Purgeable Hydrocarbons ND 50 ug/I 1 3030129 03/10/03 0311 i/03 EPA 80151802] <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-Trrfluorotoluene <br /> 91% 60-140 " <br /> MW-11 5303055-11 Water Sampled 02/28/03 16 45 Received 0310310312.15 <br /> Purgeable Hydrocarbons 210 50 ug/l 1 3030129 03/11/03 03/11/03 <br /> EPA 8015/8021 <br /> 0 50 <br /> Benzene 22 „ <br /> Toluene 1 5 050 „ <br /> Ethylbenzene 15 050 <br /> Xylenes(total) 54 050 <br /> Methyl tert-buty�ether ND 2 0Sre a,a arotoluene 8b % 60-140 <br /> MW-12 S303055-12 Water Sam led 02/27/03 13 30 Received 03/03/0312 15 <br /> 1 3030124 03111!03 03111!03 EPA 8015/8021 <br /> Purgeable Hydrocarbons ND 50 ugll <br /> Benzene ND 050 " <br /> 0 50 " <br /> Toluene ND „ <br /> Ethylbenzene ND 0 50 <br /> Xylenes(total) ND 050 „ <br /> Methyl tert-butyl ether ND 20 " <br /> Surrogate a a,a-Trtfluorotoluene 66 % 60-140 " <br /> Ota Analytical - Sacramento The results in this report apply to the samples analvzed in accordance with the chain o/ <br /> custody document Unless otherwise stated results at e i eporled on a wet weight basis <br /> This analwical i eport must be i eproduced in its entirety <br /> Page 6 of 24 <br />