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819 Striker Ave Ste 8 <br /> KDSequoia Sacramentu CA 95834 <br /> (916)921 9600 <br /> IVQV Analytical FAX(916)92 1-0 100 <br /> • www sequoiaiabs com <br /> Gettler-Ryan-Dublin Project Former Unocal 5098,Stockton, CA S308091 <br /> 6747 Sierra Court, Ste J Project Number N/A Reported <br /> Dublin CA,94568 Project Manager Deanna L. Harding 08/20/03 16 56 <br /> Volatile Organic Compounds by EPA Method 8260B <br /> - Sequoia Analytical - Sacramento - - <br /> Reporting <br /> Analvte Result Limit Units Dilution Batch Prepared Analyzed Method Notes <br /> MW-1 (5308091-02)Water Sampled 08/05/03 13 25 Received 08/05/03 17 35- - - -- <br /> Ethylbenzene ND 050 ug/1 1 3080160 08/18/03 08/19/03 EPA 8260B <br /> Hexachlorobutadiene ND 1 Q <br /> Isopropylbenzene ND 050 <br /> p-Isopropyltoluene ND 050 <br /> Methylene chloride ND 10 " <br /> Methyl tert-butyl ether ND 050 " <br /> Naphthalene ND 10 " <br /> n-Propylbenzene ND 050 <br /> Styrene ND 0 50 <br /> 1,1,1,2-Tetrachloroethane ND 050 <br /> 1,1,2,2-Tetrachloroethane ND _I 0 <br /> Tetrachloroethene ND 050 <br /> Toluene ND 0 50 " <br /> 1,2,3-Trichlorobenzene ND 050 - <br /> 1,2,4-Tnchlorobenzene ND 050 <br /> 1,1,1-Tnchloroethane ND 0 50 " <br /> 1,1,2-Tnchloroethane ND 0 50 " <br /> Trichloroethene ND 050 <br /> TrtCitlUt U IUlUE of tletndric ND U50 <br /> _ 1,2,3-Triebloropr9pane ND 1 0 <br /> i 1,2,4-Tnmethylbenzene ND 050 <br /> 1,3,5-Tnmethylbenzene ND-0 50 <br />— Vinyl chloride -- --- - --- —ND -- 050 <br />-- Xylenes(total) _ -------ND=—_ -0 50 <br /> Surrogate Dtbi omofluoromethane 100% 70-130 " <br /> Surrogate 1,2-DCA-d4 102 % 70-130 <br /> suy rugate_Toluene-d8—__� _ _ .- _ .f w _-_ 101 °/a -- -70-130 <br /> Suri ogate 4-BFB 106% 70-130 " <br /> Sequoia 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 on a wet weight basis <br /> This analytical report must be reproduced in its entirely <br /> Page 24 of 117 <br />