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819 Sento Ave Ste 8 <br /> tQ— Sequoia Sacramento CA <br /> 0 <br /> Analytical FAX(916)921-0100 <br /> www sequoialabs com <br /> ' Geological Technics,Inc Project Cardoza 5312195 <br /> I 101 7th Street Project Number 662 2 Reported <br /> ' Modesto CA,95354 Project Manager Joseph Angulo 12/24/03 17 08 <br /> Volatile Organic Compounds by EPA Method 8260B <br /> ' Sequoia Analytical-Morgan Hill <br /> Reporting <br /> Analyte Result Limit Units Dilution Hatch Prepared Analyzed Method Notes <br /> ' CPT8D62W(S312195-32)Water Sampled 12/04/03 15 25 Received 12/05/03 16 55 <br /> tert-Butyl alcohol ND 20 ug/1 1 31,18003 12/18/03 12/18/03 EPA 8260B <br /> Methyl tert-butyl ether ND 050 " <br /> D,-isopropyl ether ND 050 <br /> ' Ethyl tert-butyl ether ND 050 <br /> Cert-Amyl methyl ether ND 050 " <br /> 1,2-Dibromoethane(EDB) ND 050 <br /> ' Benzene ND 050 <br /> Toluene ND 050 " <br /> Ethylbenzene ND 050 <br /> Xylenes(total) ND 050 " <br /> Gasoline Range Organics — _ - ND - - 50 — <br /> Surrogate 1,2-Dichloroethane-d4 107% 78-129 " <br /> CPTSD74W(S312195-33)Water Sampled 12/04/03 15 50 Received 12/05/03 16 55 <br /> tert-Butyl alcohol ND 20 ug/l I 3LI8003 12/18/03 12/18/03 EPA 8260B <br /> Methyl tert-butyl ether ND 0 50 " <br /> Di-isopropyl ether ND 0 50 " <br /> Ethyl tert-butyl ether ND 0 50 " <br /> ' tert-Amyl methyl ether ND 050 <br /> 1,2-Dibromoethane(EDB) ND 050 " <br /> Benzene ND 050 <br /> Toluene ND 050 11 11 <br /> Ethylbenzene ND 050 " <br /> Xylenes(total) ND 050 " <br /> Gasoline Range Organics ND 50 " <br /> Surrogate 1 2-Dachloroethane-d4 103% 78-129 " <br /> ' Sequoia Analytical-Sacramento The results in thie report apply 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 /> 1 <br /> Page 10 of 31 <br />