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819 Sinker Ave Ste 8 <br /> Sequoia Sacrumento,916)9299600 <br /> 5834 <br /> (916)921-9600 <br /> ww <br /> FAX(916)92 100 <br /> Analytical sequoialabs com <br /> Gettler-Ryan-Dublin LL Project ,Former Unocal 0187,Stockton,CA 5302221 <br /> 6747 Sierra Court, Ste J Project Number N/A Reported <br /> Dublin CA,94568 Protect Manager Deanna L Harding 02/28/03 19 02 <br /> Gasoline (2-Methylpentane to 112,4-Trimethylbenzene) and BTEX by EPA 8015M and 8021B <br /> Sequoia Analytical - Sacramento <br /> -- Reponmg - <br /> Analyte Result Limit Units Dilution Batch Prepared Analyzed Method Notes <br /> U-3 (S302221-04)Water Sampled 02/06/03 11 55 Received 02/07/03 10 30 <br /> Purgeable Hydrocarbons w -- ND 50 ug/l- - 1 3020192 02/14/03, 02/14103„ EPA 8015/8021 <br /> Benzene ND 0 50 " <br /> Toluene ND 050 " <br /> Ethylbenzene ND 050 " <br /> Xyienes(total) ND 050 <br /> Methyl tert-butyl ether ND 2 0 <br /> Surrogate ax a-Trtfluorotoluene 102% 60-140 " <br /> U4(S302221-05)Water Sa_m_pied 02/06/031010 Received 02/07/03 10 30 <br /> Purgeable Hydrocarbons ND 50 ug/I 1 3020192 02/14/03 02/14/03 EPA 8015/8021 <br /> Benzene - ND 050 <br /> Toluene ND 050 <br /> Ethyibenzene ND 050 " <br /> Xylenes(total) ND 0 50 " <br /> Methyl tert-butyl ether_ - - - -ND 2 0-r - <br /> Surrogate a a,a-Tri luorotoluene 107% 60-140 "r • <br /> U-5(5302221-06)Water Sampled 02/06/03 10 40 Received 02/07/03 10 30 <br /> Purgeable Hydrocarbons ND 50 ugA 1 3020192 02/14/03 02/14/03 EPA 8015/8021 <br /> Benzene ND 050 <br />—Toluene —ND0 50� <br /> Ethylbenzene —_� - ND _ 050 - <br />..Xylenes(total) _ ND 0 50 <br /> Methyl tert-butyl ether ND ----2 0 <br /> Surrogate aa,a-Trifluorotoluene = - - - -- ' X105%--- 60-140---- <br /> Sequoia Analytical - Sacramento The results in this report apply to the samples analyzed in accordance with the chain OfIv <br /> custody document Unless otherwise stated results are t eported on a wet weight basis <br /> This analytical report must be reproduced in its entirety <br /> Page 5 of 33 <br />