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Sequoia 819 Striker Ave Ste 8 <br /> FFFF1y/+��/+iii Sacramento,CA 95834 <br /> (91 6)921-9600 <br /> Analytical <br /> FAX (916)921-0100 <br /> Gettler-Ryan-Dublin _ Protect Former Unocal 0187,Stockton,CA 5211332 <br /> 6747 Sierra Court,Ste ] Protect Number NIA Reported: <br /> Dublin CA,94568 Project Manager Deanna L Harding 12/27/02 17 49 <br /> Gasolinc\BTEXIOxygenates by EPA method 8260B-Quality Control <br /> Sequoia Analytical - Sacramento <br /> Reporting Spike Source %REC RPD <br /> lAnalyte Result Limit Units Level Result %REC Limits RPD Limit Notes <br /> Batch 2110312-EPA 5030B JP/T] - <br /> Matrix Spike(2110312-MSI)_ Source 5211332-09 Prepared 11/20/02 Analyzed 11/21/02 <br /> Surrogate Toluene-d8 224 ugll 250 90 60-140 <br /> Surrogate 4-BFB 230 250 91 60-140 <br /> Matrix Spike flu (2130312-MSD1) Source 5211332-09 Prepared 11/20/02 Analyzed 11/21/02 <br /> Benzene 12 2 0 50 119/1 13 4 ND 91 70-130 0 8 25 <br /> Toluene 76 5 0 50 81 0 0 52 94 70-130 8 25 <br /> Methyl tert-butyl ether 200 0 50 21 8 ND 92 60-140 4 25 <br /> Gasoline(C6-C10) 862 50 1100 ND 78 60-140 6 25 <br /> Surrogate 1,2-DCA-d4 25 7 25 0 103 60-140 <br /> Surrogate Toluene-d8_ 163 25 0 105 60-140 ^T- <br /> Surrogate 4-BFB 255 25 0 101 60-140 <br /> ipSequoia Analyhcal-Sacramento The t esulls in this report apply to the samples analyzed in accordance with the ch <br /> of custody document Unless otherwise stated,results are reported on a wet weight <br /> basis This analytical report must be reproduced in its entirety <br /> 36 of 41 <br />