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819 Striker Ave Ste B <br /> Sacramento CA 95834 <br /> (916)921 9600 <br /> Sequoia FAX(916)921 01oo <br /> Analytical www sequotalabs com <br /> WNW <br /> Gettler-Ryan-Dublin Project Former Unocal 5098,Stockton, CA 5308091 ' <br /> 6747 Sierra Court,Ste J Project Number NIA 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 /> Analyte Result Limit Units Dilution Batch Prepared Analyzed Method Notes <br /> AS-26(5308091-36)Water Sampled 08/04/03 11 20- Received 08/05/03 17 35- t = - - - <br /> Ethylbenzene ND 050 ug/l 1 3080160 06/18/03 08/18/03 EPA 8260B ' <br /> I-Iexachlorobutadtene ND 10 " <br /> Isopropylbenzene ND 050 <br /> p-Isopropyltoluene ND 050 <br /> Methylene chloride ND 1 0 " <br /> Methyl tart-butyl ether ND 050 <br /> Naphthalene ND 10 " <br /> n-Propylbenzene ND 050 ' <br /> Styrene ND 050 " <br /> 1,1,1,2-Tetrachloroethane ND 050 " <br /> 1;1,2,2-Tetrachloroethane - --=ND z 1 0 <br /> Tetrachloroethene ND 0 50 ' <br /> Toluene ND 050 " <br /> 1,2,3-Tnchlorobenzene ND 0 50 <br /> 42,4-Tnchlorobenzene ND 050 <br /> 1,1,1-Tnchloroethane ND 050 <br /> 1,1,2-Trichloroethane ND 050 " <br /> _ Trichloroethene ND 0 50 " <br /> ■ <br /> Tnchlorofluoromethane ND 050 " <br /> —1,2,3-Trtchloropropane _ —-ND— 1 0 <br /> 1,2,4-Tnmethylbenzene ND 0 50 <br /> — 1,3,5-Tnmethylbenzene - — _ _—ND-0 50— <br /> Vinyl chloride ND 050 " <br /> Xylenes(total) ---- - mND- _ - 0 50 _-- <br /> Surrogate Dtbromofluoromethane 102 % 70-130 " <br /> Surrogate 1 2-DC,4-d4 104% 70-130 " t <br /> ----Surrogate Toluene-d8 99%— -70-130--- <br /> Surrogate <br /> 70-130-- -Surrogate 4-BFB 103 % 70-130 " <br /> i <br /> Sequota 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 r eport must be reproduced in its entirety <br /> Page 92 of 117 <br />