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Sequoia 8 19 Sinker Ave Sic 8 <br /> 1 !a Sacramento CA 95634 <br /> (916)921-9600 <br /> Analytical FAX(916)921-0100 <br /> www sequora€abs coin <br /> ettler-Ryan-Dublin Project Former Unocal 5098,Stockton,CA <br /> 6747 Sierra Court,Ste 3 5308091 <br /> 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 - Quality Control <br /> Sequoia Analytical - Sacramento <br /> Reporting Spike Source %REC RPD <br /> Analyte Result Limit Units Level Result %R£C Limits RPD Limit Notes <br /> Batch 3080240-EPA 5030B PIT] <br /> Uboratory Control Sample(3080240-BSI) Prepared 08/18/03 Analzed 08/19/03zene 25 4 0 50 ug/I 250 102 70-130 <br /> Chlorobenzene 24 2 0 50 250 97 70-130 <br /> r1-Dichloroethene 25 1 050 25 0 100 70-130 <br /> �ichlorocthenc <br /> luene 243 0 50 25 0 97 70-130 <br /> 21 6 050 25 0 86 70-130 <br /> 0urrogaie 1 2-DCA-d4 254 250 102 60-140 <br /> urrogate Dibromofduoromethane 256 250 102 70-130 <br /> urrogate 12-DCA-d4 254 250 102 70-130 <br /> taborSurrogate Toluene-d8 248 250 99 70-130 <br /> atory <br /> rrogare 4-BFB 258 250 103 70-130 <br /> Control Sample Dup(3080240-BSD1) Prepared 08/18/03 Analyzed 08/19/03 <br /> Benzene 25 7 050 ug/1 25 0 103 70-130 1 25 <br /> enzene 24 1 0:50 25 0 96 70-130 0 4 25 <br /> - ichloroethene 25 9 0 50 25 0 104 70-€30 3 25 <br /> Toluene 23 7 050 25 0 95 70-130 2 25 <br /> nchloroethene 21 4 050 25 0 86 70-130 0 9 25 <br /> rrogate 12-DCA-d4 26 7 25 0 107 60-140 <br /> Surrogate Dibromofluoromethane 268 15 0 107 70-130 <br />(roateg12-DCA-d4 26 7 250 107 70-130 <br /> rogate Toluene-d8 24l 25 0 96 70-130 <br /> rogate 4-BFB 275 25 0 110 70 130 <br /> atrix Spike Du (3080240-MSD1) Source S308115-01 Prepared 08/18/03 Analyzed 08/19/03 QM pg <br /> nzene 26 0 050 ug/1 250 AID 104 60-140 25 <br /> lorobenzene 23 7 050 25 0 ND 95 60-140 25 <br /> 1,1-Dichloroethene 26 1 0 50 25 0 ND 104 60-140 25 <br /> iluene 24 8 050 25 0 ND 99 60-140 25 <br /> chloroethene <br /> 21 7 050 25 0 ND 87 60-140 25 <br /> Surrogate 12-DCA d4 258 25 0 103 60-140 <br /> rt ogate Drbrontofluoromethane 259 25 0 104 70-130 <br /> rrogate 12-DCA-d4 25 8 25 0 103 70-130 <br /> Surrogate 7-oluene-d8 15 0 250 100 70-130 <br /> b ro q_p ra 15 t5 15 0 102 70 130 <br /> �a Analytical - Sacramento The results in this report apply to the samples analyzed in accordance with the thorn of <br /> custody document Unless otherwise stated results are reported on a wet weight basis <br /> This analytical repot t must be reproduced in its entirety <br /> Page 113 of 117 <br /> r <br />