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Big sticker Ave Ste 8 <br /> 4Z� Sequoia Sacramento,CA 95834 <br /> ► Analytical FAX(916)921-9600 <br /> (916)921 0 10 <br /> www sequoialabs coin <br /> ' GeoloR,ical Technics,Inc Project Maret Property S408474 <br /> 1101 7th Street Project Number 3RD QTR 2004 Reported <br /> ' Modesto CA,95354 Project Manager Joseph Angulo 09/03/04 17 30 <br /> Gasoline\BTEXIOxygenates by EPA method 8260B-Quality Control <br /> ' Sequoia Analytical-Sacramento <br /> Reporting Spike Source %REC RPD <br /> Analyte Result Limit Units Level Result %REC Limits RPD L1mlt Notes <br /> ' Batch 4080389-EPA 5030B IP/Tl <br /> Blank(4080389-BLK1) _ _ Prepared 08/25/04 Analyzed 08/26/04 <br /> Ethanol ND 50 _._ <br /> tTert-butyl alcohol ND 5 0 " <br /> Methyl tert-butyl ether ND 050 " <br /> Dr-isopropyl ether ND 050 " <br /> ' Ethyl tert-butyl ether ND 0 50 <br /> Tert-amyl methyl ether ND 0 50 <br /> 1,2-Dichloroethane ND 0 50 <br /> 1,2-Dibromoethane(EDB) ND 0 50 " <br /> ' Benzene ND 050 " <br /> Ethylbenzene ND 050 " <br /> Toluene ND 050 " <br /> Xylenes(total) ND 050 " <br /> soline Range Organics(C4-C12) ND 50 <br /> Surrogate Toluene-d8 8 69 100 87 60-140 <br /> Surrogate 4-BFB 9 17 100 92 60-140 <br /> Surrogate 1 2-DCA-d4 112 100 111 60-140 <br /> Blank(4080389-BLK2) Prepared&Analyzed 08/27/04 _ <br /> Ethanol ND 50 ugll <br /> ' Tert-butyl alcohol ND 50 " <br /> Methyl tert-butyl ether ND 050 " <br /> Di-isopropyl ether ND 050 " <br /> Ethyl let-butyl ether ND 050 <br /> Tert-amyl methyl ether ND 050 " <br /> 1,2-Dichloroethane ND 050 <br /> 1,2-Dibromoethane(EDB) ND 050 " <br /> Benzene ND 050 <br /> Ethylbenzene ND 050 " <br /> Toluene ND 050 <br /> Xylenes(total) ND 050 <br />' Gasoline Range Organics(C4-C 12) ND 50 °I <br /> Surrogate Toluene-d8 869 100 87 60-140 <br /> Surrogate 4-BFB 912 100 91 60-140 <br />' Surrogate 1,2-DCA-d4 13 2 100 132 60-140 <br /> t Sequoia Analytical-Sacramento The results to 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 /> basis This analytical report must be reproduced in its entirety <br /> Page 10 of 16 <br />