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819 Striker Ave Ste 8 <br /> SegUO*la Sacramento, <br /> L Analytical FAX(9uoiala-0100 <br /> www.sequoialabs.com <br /> i <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 8260B <br /> Sequoia Analytical-Sacramento <br /> Reporting <br /> Analyte Result Limit Units Dilution Batch Prepared Analyzed Method Notes <br /> CGP-2D17(S405064-06RE1)Soil Sampled:05/03/04 10:35 Received:05/04/04 13:30 <br /> t.i 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 /> Tert-amyl methyl ether ND 0.0050 HT-05 <br /> 1,2-Dichloroethane ND 0.0050 HT-05 <br /> 1,2-Dibromoethane(EDB) ND 0.0050 11 11 11 +' HT-05 <br /> Benzene ND 0.0050 14T-05 <br /> Ethylbenzene ND 0.0050 HT-05 <br /> Toluene ND 0.0050 HT-05 <br /> Xylenes(total) ND 0.010 HT-05 <br /> L Gasoline Range Organics(C4-C12) N-D 1.0 HT-05 <br /> Surrogate: 1,2-DCA-d4 52% 60-140 HT-05,S05 <br /> Surrogate: Toluene-d8 91 % 60-140 HT-05 <br /> Surrogate:4-BFB 87% 60-140 .. HT-05 <br /> GP-2D20(S405064-07)Soil Sampled:05/03/04 10:50 Received:05/04/04 13:30 <br /> 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 /> Di-isopropyl ether ND 0.25 " <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-Dibronloethane(EDB) ND 0.25 <br /> Benzene . _ ND .0.25 11 11 <br /> Ethylbenzene ND 0.25 <br /> Toluene ND 0.25 " <br /> Xylenes(total) ND 0.50 <br /> Gasoline Range Organics(C4-C12) ND 50 <br /> Surrogate: 1,2-DCA-d4 101 % 60-140 <br /> Surrogate: Toluene-d8 104% 60-140 <br /> Surrogate. 4-BFB 93% 60-140 <br /> Sequoia Analytical-Sacramento The results in this report appy to the samples analyzed in accordance with the chain of <br /> custody document. Unless otherwise stated,results are reported on a wet weight basis. <br /> This analytical report must be reproduced in its entirety. <br /> Page 8 of 19 <br />