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I <br />Sequoia <br />Analytical <br />819 Striker Avenue Suite 8 <br />Sacramento CA 95834 <br />(916) 921-9600 <br />FAX (916) 921 0100 <br />www secluotalabs corn <br />SECOR International - Rancho Cordova Project Chevron 9-5775 Lodi CA <br />3017 htlgorL Road Suitt 100 Prolctt Numbtr 077 41991 043 Reported <br />Rancho Cordova CA 95670 Proltc.l Manager Ronald Churn 11/28100 17 58 <br />Volatile Oxygenate Compounds by EPA Method 8260A - Quality Control <br />Sequoia Analytical - Sacramento <br />Reporting Sptl.L Source '.REC RPD <br />knaINI, RCSuIt Limit Units Leel Result °'.RLC l imus RPD Limit Notes <br />Batch 0110092 - FPA 50308 [P!T[ <br />Source 5011231-01 <br />Prepared & Analyzed <br />11/17/00 <br />Methyl cert -butyl ether <br />Blank (0110092-BLKI) <br />500 ND <br />984 60-140 <br />Prepared & Analyzed <br />11/17/00 <br />Tert butyl alcohol <br />ND <br />200 <br />ug/l <br />Prepared & Analyzed <br />Methyl ten butyl ethtr <br />ND <br />200 <br />" <br />101 60-140 300 25 <br />Di -isopropyl, ether <br />ND <br />200 <br />980 60-140 <br />Ethylene dtbromtde <br />Ethyl tent -butyl ether <br />ND <br />200 <br />" <br />500 108 60-140 <br />Tert-amyl methyl ether <br />ND <br />200 <br />" <br />Ethanol <br />ND <br />3000 <br />1 2-Dichloroethane <br />ND <br />200 <br />" <br />Ethylene dtbromtde <br />ND <br />200 <br />" <br />Surrogate 11 -DCA -d4 <br />469 <br />' — -- 500 <br />938 60-140 <br />L"110092 -BSI) <br />Prepared & Analyzed <br />11/17/00 <br />MlWert-butyl ether <br />489 <br />200 <br />ug11 500 <br />978 70 130 <br />Surrogate 1 2 -DCA -d4 <br />502 <br />500 <br />100 60-140 <br />Matrix Spike (0110092 -MSI) <br />Source 5011231-01 <br />Prepared & Analyzed <br />11/17/00 <br />Methyl cert -butyl ether <br />492 200 ugll <br />500 ND <br />984 60-140 <br />Surrogate 1 2 -DCA -d4 <br />469 <br />500 <br />938 60-140 <br />Matrix Spike Dup (0110092-MSD1) <br />Source S011231-01 <br />Prepared & Analyzed <br />11/17/00 <br />_ <br />Methyl tert-butyl ether <br />507 200 ugli <br />500 ND <br />101 60-140 300 25 <br />Surrogate 1,1 -DCA -d4 <br />490 <br />500 <br />980 60-140 <br />Batch 0110345 - EPA 5030B 1P/T <br />Blank (0110345-BLKI) <br />Prepared & Analyzed 11/20/00 _ <br />Tcit-butyl alcohol <br />ND <br />200 ug/I <br />Methyl tat -butyl ether <br />ND <br />200 " <br />Di -isopropyl ether <br />ND <br />200 " <br />Ethyl tert-butyl ether <br />ND <br />200 " <br />Teri -amyl methyl ether <br />ND <br />200 " <br />Ethanal <br />ND <br />3000 " <br />1,2-Dichloroethane <br />ND <br />200 " <br />Ethylene dtbromtde <br />ND <br />200 " <br />Surrogate 1 2 -DCA -d4 <br />J42 <br />500 108 60-140 <br />Analytical - Sacramento <br />The results in this report apply to the samples analyzed in accordance with the chain of <br />custody document This analytical report must be reproduced in its entirety <br />Page 7 of 10 <br />,4�, <br />