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enue,Suite 8 <br /> ' / - ` Sequoia 8195trlker(96)9ZI96M <br /> , _- Sacramento.CA 95834 <br /> (916)921-9600 <br /> FAX(916)921-0100 <br /> 11WAnalytical w .seciuolalabs.com <br /> ' Kleinfelder-Stockton Project: Elks Lodge 5405066 <br /> 2825 East Myrtle Street Project Number: 42162 Reported: <br /> ' Stockton CA,95205 Project Manager: Joe Zilles 05/19/04 18:53 <br /> Total Metals by EPA 6000/7000 Series Methods - Quality Control <br /> ' Sequoia Analytical- Sacramento <br /> Reporting Spike Source %REC RPD <br /> Analyte Result limit Units Level Result %REC Limits RPD Limit Notes <br /> 'Batch 4050122-EPA 7471A <br /> Blank(4050122-B LKI) Prepared:05/10/04 Analyzed:05/11/04 <br /> Mercury ND 0.020 mg/kg <br /> 'Laboratory Control Sample(4050122-BS1) Prepared:05/10/04 Analyzed:05/11/04 <br /> Mercury 0.410 0.020 mg/kg 0.417 98 80-120 <br /> Matrix Spike(4050122-MSI) Source:S405066-01 Prepared:05/10/04 Analyzed:05/11/04 <br /> 'Mercury 0.404 0.020 mg/kg 0.417 ND 97 75-125 <br /> Matrix Spike Dup(4050122-MSD1) Source:5405066-01 Prepared:05/10/04 Analyzed: 05/11/04 <br /> Mercury 0.420 0.020 mg/kg 0.417 ND 101 75-125 4 20 <br /> Batch 4050227-EPA 3050B <br /> Blank(4050227-BLKI) Prepared:05/13/04 Analyzed:05/17/04 <br /> 'Antimony ND 2.5 mg/kg <br /> Arsenic ND 2.5 <br /> Barium ND 2.5 " <br /> 'Beryllium ND 0.25 <br /> Cadmium ND 0.25 <br /> Chromium ND 0.25 " <br /> Cobalt ND 1.0 " <br /> 'Copper ND 0.25 11 <br /> Lead ND 2.5 <br /> Molybdenum ND 1.0 " <br /> Nickel ND 1.0 <br /> Selenium - ND 2.5 " <br /> Silver ND 0.25 <br /> 'Thallium ND 5.0 <br /> Vanadium ND 1.0 " <br /> Zinc ND 0.25 " <br /> Sequoia Analytical-Sacramento The results in this 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 /> ' Page 23 of 25 <br />