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Sequoia 819 Striker Ave Ste 8 <br /> Sacramento,CA 95834 <br /> (916)921 9600 <br /> Analytical <br /> FAX(916)92]-0100 <br /> www sequoialabs coin <br /> ttler-Ryan-Dublin Project Former Unocal 5098,Stockton, CA <br /> 6747 Sierra Court,Ste J 5308091 <br /> Project Number N/A Reported <br /> Dublin CA,94568 Project Manager Deanna L Harding 08/20/03 36 56 <br /> ' Volatile Organic Compounds by EPA Method 8260B - Quality Control <br /> Sequoia Analytical - Sacramento <br /> Reporting Spike Source °/9REC RPD <br /> fnaJyte Result Limit Units Level Result %REC Limits RPD Limit Notes <br /> Batch 3080117- EPA 503013 PIT <br /> Tank(30801]7-8LK1) Prepared 0$!I]/03 Analyzed 08/12/03 <br /> 3-Dichloropropane ND 0 50 ug/1 <br /> 2,2-Dichloropropane ND 0 50 " <br /> 1-Dichloropropene ND 050 " <br /> hylbenzene ND 0 50 " <br /> ,exachlorobutadiene ND 10 " <br /> opropylbenzene ND 050 <br /> Isopropyltoluene ND 050 <br /> ethylene chloride ND 1 0 <br /> Methyl tert-butyl ether ND 050 <br /> phthalene ND 10 <br /> Propylbenzene ND 050 <br /> Styrene ND 050 " <br /> 2-Tetrachloroethane ND 050 " <br /> -Tetrachloroethane ND 1 0 " <br /> etrachloroethene ND 050 " <br /> Toluene ND 050 <br /> 13-Tnchlorobenzene ND 050 " <br /> ,14-Tnchlorobenzene ND 050 <br /> 1,1,1-Tnchloroethane ND 050 " <br /> 2-Trichloroethane ND 050 <br /> chloroethene ND 050 <br /> Tnchlorofluoromethane ND 050 " <br /> t.3Trrchloropropane ND 1 0 <br /> ,4-Tnmethylbenzene ND 050 „ <br /> ,'5-Tnmethyl benzene ND 050 " <br /> Vinyl chlonde ND 050 <br /> lenes(total) ND 050 <br /> rrogate 12-DCA-d4 291 250 116 60-140 <br /> Surrogate DibramoJluaromethane 262 250 105 70-130 <br /> alogate 1,2-DCA-d4 291 25 o 116 70-134 <br /> rogate Toluene-d& 249 250 100 70-130 <br /> Surrogate 4-BFB 273 250 109 70-130 <br />+r <br /> i <br /> uoia Analytical- Sacramento The results to this report apply to the samples analyzed in accordance with the chain of <br /> custody document Unless otherwise stated results are repoi ted on a wet weight basis <br /> This analytical report must be reproduced in its entirety <br /> Page 103 of 1]7 <br />