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819 stnAve Ste <br /> Sequoia Sacrnnento to CA 958344 <br /> (916)921 9600 <br /> Analytical FAX(916)9210100 <br /> www sequotalabs corn <br /> ' Geological Technics,Inc Project Cardoza S312195 <br /> 1 101 7th Street Project Number 662 2 Reported <br /> ' Modesto CA,95354 Project Manager Joseph Angulo 12/24/03 17 08 <br /> Gasolme\BTEXIOxygenates by EPA method 8260B <br /> Sequoia Analytical - Sacramento <br /> ' Reporting <br /> Analyte Result Limit Units Dilution Batch Prepared Analyzed Method Notes <br /> CPT21335(5312195-03)Soil Sampled 12/03/03 09 42 Received 12/05/03 16 55 <br /> Tert-butyl alcohol ND 0 050 mg/kg l 3120251 12/17/03 12/17/03 EPA 8260B <br /> Methyl tert-butyl ether ND 00050 <br /> D,-isopropyl ether ND 00050 " <br /> ' Ethyl tert-butyl ether ND 00050 <br /> Tert-amyl methyl ether ND 00050 " <br /> Benzene ND 00050 " <br /> ' Ethylbenzene ND 00050 <br /> Toluene ND 00050 " <br /> Xylenes(total) ND 0 010 " <br /> Gasoline Range Organics ND 10 " <br /> Surrogate 1 2-DCA-d4 104°/a 60-140 " 'I <br /> Surrogate Toluene-d8 93% 60-140 " <br /> Surrogate 4-BFB 100% 60-140 " <br /> CPT2D56(S312195-04)Soil Sampled 12/03/03 10 25 Received 12/05/03 16 55 <br /> Tert-butyl alcohol ND 0 050 mg/kg 1 3120251 12/17/03 12/17/03 EPA 8260B <br /> Methyl tert-butyl ether ND 00050 " <br /> ' Di-isopropyl ether ND 00050 " f' <br /> Ethyl tert-butyl ether ND 00050 " <br /> Tert-amyl methyl ether ND 00050 " <br /> Benzene ND 00050 " <br /> Ethylbenzene ND 00050 <br /> Toluene ND 00050 " <br /> Xylenes(total) ND 0 010 " <br /> Gasoline Range Organics ND 1 0 " <br /> Surrogate 1,2-DCA-d4 106% 60-140 <br /> Surrogate Toluene-d8 99% 60-140 <br /> Surrogate 4-BFB 101% 60-140 " <br /> 1 <br /> Sequoia Analytical- Sacramento The results in this report apply to the samples analyzed in accordance with the chain of <br /> custody docurnent Unless otherwise stated results ai e reported on a wet weight basis <br /> This analytical report must be?eproduced in its enitrety <br /> Page 12 of 31 <br />