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-'R 8 Striker Ave Ste 8 <br /> Sequoia Sacramento,CA 95834 <br /> (916)921-9600 <br /> Analytical FAX(916)921-0100 <br /> J www.sequoialabs.com <br /> Geological Technics,Inc. Project: Cardoza S405064 <br /> r1101 7th Street Project Number.: 1135.2 Reported: <br /> Gasoline\BTEX\Ox en, fenny weese o6/l s/oa 15:19 <br /> yg <br /> Modesto a, 5 Project Manager: Jenny <br /> by EPA method 8260B <br /> Sequoia Analytical-Sacramento <br /> Reporting <br /> Analyte Result Limit Units Dilution Batch Prepared Analyzed Method Notes <br /> GP-2Dll(5405064-05RE1)Soil Sampled:05/03/04 10:23 Received:05/04/04 13:30 <br /> 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 11 i1 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 HT-05 <br /> - Benzene ND 0.0050 HT-05 <br /> Ethylbenzene ND 0.0050 " HT-05 <br /> Toluene ND 0.0050 HT-05 <br /> Xylenes(total) ND 0.010 HT-05 <br /> Gasoline Range Organics(C4-C12) ND 1.0 HT-05 <br /> Surrogate: 1,2-DCA-d4 53% 60-140 HT-05,S05 <br /> Surrogate: Toluene-d8 96% 60-140 HT-05 <br /> Surrogate:4-BFB 93% 60-140 HT-05 " <br /> GP-2D17(S405064-06)Soil Sampled:05/03/04 10:35 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 tent-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 /> Benzene ND 0.25 <br /> Ethylbenzene ND 0.25 1 " <br /> Toluene ND 0.25 <br /> Xylenes(total) ND 0.50 " <br /> Gasoline Range Organics(C4-C12) ND 50 II <br /> Surrogate:1,2-DCA-d4 101 % 60-140 <br /> Surrogate: Toluene-d8 100% 60-140' <br /> Surrogate:4-BFB 102% 60-140 . <br /> The results in this report a h <br /> Sequoia Analytical-Sacraments r� apply 1�the simples RnR13ne1 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 entirely. <br /> Page 7 of 19 <br />