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Sequoia 819 Striker Ave Ste 8 <br /> EllE)I Sacramento,CA 95834 <br /> nalyfiiv (916)921-9600 <br /> FAX(916)921-0100 <br /> ettler-Ryan-Dublin Project Former Unocal 5098,Stockton,CA 5212135 <br /> 6141 Sierra Court,Ste J Project Number N/A Reported <br /> Dublm CA,94568 Project Manager Deanna L Harding 12/27/02 14 14 <br /> Volatile Organic Compounds by EPA Method 8260B- Quality Control <br /> Sequoia Analytical-Sacramento <br /> Reporting Spike Source %REC RPD <br /> Analyte Result Lmvt Units Level Result %RLC Limits RPD Lunn Nates <br /> Batch 2126259-EPA 5630B lP/TI <br /> Matrix Spike 2120259-MS1 Source 5212119-01 Pre ared 12/16/02 Anal ed. 12/17/02 <br /> Surrogate 11-DCA-d4 224 ug/I 250 90 60-140 <br /> Surrogate Dibromofluoromethane 232 11 250 93 70-130 <br /> Surrogate 12-DCA-d4 224 250 90 70-130 <br /> Surrogate Toluene-d8 284 250 114 70-130 <br /> Surrogate 4-BFB 2.50 250 100 70-130 <br /> Matrix Spike Du 2120259-MSD1 Source 5212119-01 Pr ared 12/16/02 Analyzed 12/17/02 <br /> Benzene 10 2 0 50 U94 10 0 ND 102 60-140 6 25 <br /> Methyl tent-butyl ether 102 2 0 10 0 ND 102 60-140 7 25 <br /> Chlorobenzene 13 2 0 50 100 ND 132 60-140 2 25 <br /> I,1-Dichloroethene 112 0 50 100 ND 112 60-140 5 25 <br /> Toluene 127 0 50 10 0 ND 127 60-140 3 25 <br /> Trichloroethene 9 98 0 50 10 0 058 94 60-140 6 25 <br /> rrogate 12-DCA-d4 21 6 <br /> 250 90 60-140 <br /> Surrogate Dibromofluoromethane 23 1 25 0 93 70-130 <br /> Surrogate 12-DCA-d4 226 250 90 70-130 <br /> Surrogate Toluene-d8 28 5 250 114 70-130 <br /> Surrogate 4-BFB 254 25 0 102 70-130 <br /> Sequoia Analytical-Sacramento The results in this report apply to the samples analyzed in accordance with the chain <br /> of custody document Unless otherwise stated results are reported on a wet weight <br /> .0 basis This analytical report must be reproduced to its entirety <br /> 101 of 102 <br />