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Sequoia 819 Sen-,Ave Ste 8 <br /> r * Sacramento. 92 95834 <br /> 9600 <br /> { Analytical (916)921-9600 <br /> �i FAX(916)921-0100 <br /> www.sequoialabs.com <br /> Geological Technics,Inc. Project: Cardoza S405064 <br /> 1101 7th Street Project Number: 1135.2 Reported: <br /> Modesto CA,95354 Project Manager: Jenny Weese 06/15/04 15:19 <br /> Gasoline\BTEX\Oxygenates by EPA method 826OB <br /> Sequoia Analytical-Sacramento <br /> L Reporting <br /> Analyte Result Limit Units Dilution Batch Prepared Analyzed Method Notes <br /> I <br /> GP-3D10(5405064-09)Soil Sampled:05/03/04 11:55 Received:05/04/04 13:30 <br /> L Tert-butyl alcohol ND 2.5 mg/kg 50 4050217 05/16/04 05/17/04 EPA 8260B <br /> Methyl tert-butyl ether ND 0.25 " <br /> L Di-isopropyl ether ND 0.25 n " <br /> Ethyl tert-butyl ether ND 0.25 <br /> Tert-amyl methyl ether ND 0.25 <br /> 1,2-Dichloroethane ND 0.25 " <br /> 1,2-Dibromoethane(EDB) ND 0.25 " <br /> L Benzene ND 0.25 " <br /> Ethylbenzene ND 0.25 " <br /> Toluene ND 0.25 <br /> Xylenes(total) ND 0.50 " <br /> L Gasoline Range Organics(C4-C12) ND 50 " <br /> Surrogate: 1,2-DCA-d4 104% 60-140 " <br /> L Surrogate: Toluene-d8 100% 60-140 „ <br /> Surrogate:4-BFB 99.% 60-140 <br /> GP-3D10(5405064-09RE1)Soil Sampled:05/03/04 11:55 Received:05/04/04 13:30 <br /> L Tert-butyl alcohol ND 0.050 mg/kg 1 4050328 06/08/04 .06/08/04 EPA 8260B HT-05 <br /> Methyl tert-butyl ether ND 0.0050 HT-05 <br />! Di-isopropyl ether ND 0.0050 " " HT-05 <br /> Ethyl tert-butyl ether ND 0:0050 HT-05 <br /> L Tert-amyl methyl ether ND 0.0050 „ 11 " 1, HT-05 <br /> 1,2-Dichloroethane ND 0.0050 HT-05 <br /> 1,2-Dibromoethane(EDB) ND 0.0050 HT-05 <br /> Benzene ND 0.0050 HT-05 <br /> Ethylbenzene ND 0.0050 11 " " HT-05 <br /> Toluene ND 0.0050 HT-05. <br /> Xylenes(total) ND 0.010 ". HT-05 <br /> L Gasoline Range Organics(C4-C12) ND 1.0 I, HT-05 <br /> Surrogate: 1,2-DCA-d4 55% 60-140 HT-05,SOS <br /> Surrogate: Toluene-d8 96% 60-140 . HT-05 <br /> Surrogate:4-BFB 91% 60-140 HT-OS . <br />� L • <br /> L <br /> Sequoia Analytical-Sacramento The results in this report apply to the samples analyzed in accordance with the chain or <br /> custody document. Unless otherwise stated,results are reported on a wet weight basis. <br /> r This analytical report must be reproduced in its entirety. <br /> Page 10 of 19 <br />