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' <br /> Sequoia <br /> Q y 1 819 Stoker Avenue,Suite 8 <br /> J 1.q ll Y a SavamCA 95834 <br /> (916) <br /> ■ � _l (916)921-9600 <br /> FAX(916)921-0100 <br /> Analytical w .sequoiaiabs.com <br /> iKleinfelder-Stockton Project: Elks Lodge 5405069 <br /> 2825 East Myrtle Street Project Number: 42162 Reported: <br /> ' Stockton CA,95205 Project Manager: Joe Zilles 05/18/04 17:51 <br /> Total Metals by EPA 6000/7000 Series Methods - Quality Control <br /> ' Sequoia Analytical- Sacramento <br /> Reporting Spike Source %PEC RPD <br /> Analyte Result Limit Units Level Result %REC Limits RPD Limit Notes <br /> 'Batch 4050117-EPA 3010A <br /> Matrix Spike Dup(4050117-MSDI) Source: S404563-01 Prepared:05/10/04 Analyzed:05/12/04 <br /> Arsenic 1.03 0.20 mg/l 1.00 ND 103 80-120 0 20 <br /> 'Cadmium 0.985 0.020 „ 1.00 ND 98 80-120 2 20 <br /> Chromium 0.948 0.020 1.00 ND 95 80-120 2 20 <br /> Nickel 0.967 0.080 1.00 ND 97 80-120 3 20 <br /> .'Zinc 0.996 - 0.020 1.00 ND 100 80-120 2 20 <br /> Batch 4050154-EPA 7470A <br /> Blank(4050154-BLKl) Prepared&Analyzed: 05/12/04 <br /> 'Mercury ND 0.00020 mg/l <br /> Blank(4050154-BLK2) Prepared&Analyzed:05/12/04 <br /> 'Mercury ND 0.00020 mg/l Laboratory Control Sample(4050154-BS1) Prepared&Analyzed:05/12/04 <br /> Mercury 0.00541 0.00020 mg/l 0.00500 108 80-120 <br /> 'Matrix Spike(4050154-MSI) Source:5405053-02 Prepared&Analyzed:05/12/04 <br /> Mercury 0.00561 0.00020 mg/l 0.00500 ND 112 75-125 <br /> Matrix Spike Dup(4050154-MSDI) Source:5405053-02 Prepared&Analyzed:05/12/04 <br /> 'Mercury 0.00565 0.00020 mg/l 0.00500 ND 113 75-125 0.7 20 <br /> Batch 4050208-EPA 7470A <br /> Blank(4050208-BLKI) Prepared: 05/14/04 Analyzed: 05/17/04 <br /> 'Mercury ND 0.00020 mg/l <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 /> ' (D Page 16 of 24 <br />