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Sequoia 819 Striker Ave Ste 8 <br /> Sacramento,CA 95834 <br /> Analytical (916)921-9600 <br /> FAX(916)92 1-0 100 <br /> www squoialabs com <br /> Gettler-Ryan-Dublin Project Unocal 5098, Stockton,CA <br /> 7 Sierra Court, Ste J 5210010 <br /> Project Number NIA Reported <br /> in CA,94568 Project Manager Deanna L Harding 10/14/02 18 46 <br /> Volatile Organic Compounds by EPA Method 8260B - Quality Control <br /> 1110 Sequoia Analytical- Sacramento <br /> Reporting Spike Source %REC RPD <br /> alyte Result Limit Units Level Result %REC Limits RPD Limit Notes <br /> tch 2100085-EPA 5030B [P/Tl <br /> sank{2100085-BL)KI) Prepared&Analyzed 10/05/02 <br /> 1,2,3-Tnchlorobenzene ND 050 ug/l <br /> 4-Tnchlorobenzene ND 050 <br /> ,]-Trichloroethane ND 050 <br /> 1,1,24richloroethane ND 050 " <br /> chlormthene ND 050 <br /> chlorofluoromethane ND 050 " <br /> 1,2,3-Trichloropropane ND 1 0 „ <br /> 4-Tnmethylbenzene ND 050 <br /> 0-1 <br /> 5-Trimethylbenzene ND 050�iyl chloride ND 050 " <br /> tal Xylenes ND 050 " <br /> ragate Dibramafluoromethane 210 2.50 84 70-130 <br /> Surrogate 1 2-DCA d4 239 2-50 96 70-130 <br /> Toluene-d8 225 250 90 70-130 <br /> to 4-BFB 215 250 86 70-130 <br />*oratory Control Sam le(2100085-BSI) Prepared&Analyzed 10/05/02 <br /> zene 272 050 ug/I 25 0 ]09 70-130 <br /> Chlorobenzene 25 2 050 250 101 70-130 <br /> 1tDichloroethene 272 050 250 109 70-130 <br /> ene 266 050 250 106 70-130 <br /> Crichloroethene 22 1 050 250 88 70-130 <br /> ogate Dibromo/luotomethane 160 250 104 70-130 <br /> urrogate 12-DCA-d4 289 250 116 70-130 <br /> ogate Toluene-d8 274 250 110 70-130 <br /> gate 4-BFB 266 250 106 70-130 <br /> I <br /> rix 2100085-MS]Spike P � ) Source 5210010-07 Prepared&Analyzed 10/05/02 <br /> ne E4 8 050 ugil 250 58 107 60-140 <br /> hlorobenzene 25 7 050 250 ND 103 60-140 <br /> ichloroethene 284 050 250 ND 114 40-140 <br /> ene 314 050 25 0 50 106 60-140 <br /> r loroethene 226 050 250 ND 90 60-140 <br /> oia Aiialytic al- 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 entirety <br /> Page 108 of 119 <br />