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Sequoia 680 Chesapeake Drive Redwood City,CA 9401- (650) 364-9600 FAX(650)364-9233 <br /> 404 N.Wiget Lane Walnut Creek, CA 94598 (SIO) 988-9600 FAX(510) 988-9673 <br /> Analytical 819 Striker Avenue,Suite 8 Sacramento,CA 95834 (916) 921-9600 FAX (916)921-0100 <br /> Upgradient Environmental Consultants Project: Kwikee Foods Sampled: 5/11/98 to 5/12198 <br /> 336 Augusta Court Project Number: N/A Received: 5/13/98 <br /> Valley Sp.,CA 95252 Project Manager: Vic Cherven Reported: 5/28/98 <br /> Volatile Organic Compounds by EPA Method 8260A/Quality Control <br /> Sequoia Analytical-Sacramento <br /> Date Spike Sample QC Reporting Limit Recov. RPD RPD <br /> Analyte Analyzed Level Result Result Units Recov.Limits % Limit % Notes* <br /> Batch: 8050259 0198 <br /> Blank $.450259--W Kl <br /> Ethanol 5/20198 ND mg/kg 150 <br /> Tert-butyl alcohol ND 10.0 <br /> Methyl tert-butyl ether ND 0.100 <br /> Di-isopropyl ether ND 0.100 <br /> Ethyl tert-butyl ether ND 0.100 <br /> Tert-amyl methyl ether ND 0.100 <br /> Surrogate: 1,2-DCA-d4 2.50 2.65 60.0-140 106 <br /> LCS 8050252- <br /> Methyl tert-butyl ether 5/20/98 2.50 3.04 mg/kg 70.0-130 122 <br /> Surrogate: 1,2-DCA-d4 " 2.50 2.05 If 60.0-140 82.0 <br /> "rix Spoke 8050259-MSI S805057-01 <br /> yl tent-butyl ether 5/18/98 2.50 ND 1.65 mg/kg 60.0-140 66.0 <br /> Surrogate: 1,2-DCA-d4 0, 2.50 2.66 60.0-140 106 <br /> Matrix Spike Dup 8050259-MSDI S805057-01 <br /> Methyl tert-butyl ether 5/18198 2.50 ND 2.70 mg/kg 60.0-140 108 25.0 48.3 3 <br /> Surrogate: 1,2-DCA-d4 2.50 1.89 If 60.0-140 75.6 <br /> Batch: 8050260 Date Prepared: 5/21/98 <br /> Blank 8050260-BLKI <br /> Ethanol 5/21/98 ND mg/kg 150 <br /> Tert-butyl alcohol ND 10.0 <br /> Methyl tert-butyl ether ND ;i 0.100 <br /> Di-isopropyl ether ND 0.100 <br /> Ethyl Cert-butyl ether ND 0.100 <br /> Tert-amyl methyl ether ND 0.100 <br /> Surrogate: 1,2-DCA-d4 2.50 2.64 60.0-140 106 <br /> LCIS 8050260-BS1 <br /> Methyl tert-butyl ether 5/21/98 2.50 2.19 mg/kg 70.0-130 87.6 <br /> Surrogate: 1,2-DCA-d4 1' 2.50 2.75 60.0-140 110 <br /> Matrix Spike 8050260-MSI 5805175-06 <br /> Methyl tert-butyl ether 5121/98 2.50 ND 2.72 mg/kg 60.0-140 109 <br /> Surrogate: 1,2-DCA-d4 2.50 2.75 60.0-140 110 <br /> Matrix Spike Dun 8050260-MSDI 5805175-06 <br /> Ahaethyl tert-butyl ether 5/21/98 2.50 ND 1.84 mg/kg 60.0-140 73.6 25.0 38.8 3 <br /> Sequoia Analytical-Sacramento *Refer to end of report for text of notes and definitions. <br /> �U <br /> Page 12 of 14 <br /> Linda C. Schneider,Laboratory Director <br />