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Sequoia <br />Analytical <br />819 Striker Avenue, Suite 8 <br />Sacramento, CA 95834 <br />(916) 921-9600 <br />FAX (916) 92 1 -0 100 <br />www.sequoialabs.com <br />Kleinfelder - Stockton <br />Project: Trade Way <br />2825 East Myrtle Street <br />Project Number: 20-3978-03.Chev <br />Reported: <br />Stockton CA, 95205 <br />Project Manager: Joe Zilles <br />06/12/02 16:26 <br />Volatile Organic Compounds by EPA Method 8260B <br />Sequoia Analytical - Sacramento <br />Reporting <br />Analyte <br />Result Limit Units Dilution Batch Prepared Analyzed <br />Method Notes <br />25331 -MW -1 (5205350-01) Water <br />Sampled: 05/28/02 12:25 Received: 05/28/02 17:53 <br />reit-butyl alcohol <br />ND 5.0 ug/l 1 2060034 06/05/02 06/05/02 <br />EPA 8260B <br />Methyl tert-butyl ether <br />ND 0.50 <br />" <br />Di -isopropyl ether <br />ND 0.50 <br />" <br />Ethyl cert -butyl ether <br />ND 0.50 <br />" <br />rert-amyl methyl ether <br />ND 0.50 <br />" <br />Surrogate: 1,2 -DCA -d4 <br />114 % 60-140 <br />" <br />25332 -MW -2 (S205350-02) Water <br />Sampled: 05/28/02 14:06 Received: 05/28/02 17:53 <br />Tert-butyl alcohol <br />ND 5.0 ug/l 1 2060034 06/05/02 06/05/02 <br />EPA 8260B <br />Methyl tert-butyl ether <br />ND 0.50 <br />" <br />Di -isopropyl ether <br />ND 0.50 <br />" <br />Ethyl tert-butyl ether <br />ND 0.50 <br />" <br />Tert-amyl methyl ether <br />ND 0.50 <br />" <br />Surrogate: 1,2 -DCA -d4 <br />116 % 60-140 <br />" <br />25333 -MW -3 (5205350-03) Water <br />Sampled: 05/28/02 13:15 Received: 05/28/02 17:53 <br />Tert-butyl alcohol <br />Methyl tert-butyl ether <br />Di -isopropyl ether <br />Ethyl tert-butyl ether <br />rert-amyl methyl ether <br />Surrogate: 1,2 -DCA -d4 <br />Sequoia Analytical - Sacramento <br />ND 5.0 ug/l 1 2060034 06/05/02 06/05/02 EPA 8260B <br />ND 0.50 " <br />ND 0.50 " <br />ND 0.50 " <br />ND 0.50 " <br />113% 60-140 " <br />The results in this report apply to the samples analyzed in accordance with the chain of <br />custody document. This analytical report must he reproduced in its entirety. <br />Page 4 of 1 1 <br />