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404 N.Wiget Lane <br /> Sequoia Walnut Creek,CA 94598 <br /> -9600 <br /> 4 (925)988-9600 <br /> FAX(925)9813-9673 <br /> a- ) <br /> Analytical www.sequaialabs.com <br /> San Joaquin Company Inc. Project: 7500 W 11th St.Steet Tracy <br /> 1120 Hollywood Ave.No.3 Project Number: # 9902.012 Reported: <br /> Oakland CA.,94602 Project Manager: Dai Watkins 24-May-00 15:06 <br /> Total Metals by EPA 6000/7000 Series Methods - Quality Control <br /> Sequoia Analytical -Walnut Creek <br /> is o <br /> Reporting Spike Source /DREG RPD <br /> r � Y`--Anal to Result Limit Units Level Result %REC Limits RPD Limit Notes <br /> _. <br /> atch OD27017-EPA 3050B <br /> lank(OD27017-BLIC1) Prepared&Analyzed:27-Apr-00 <br /> Lead ND 2.5 mg/kg <br /> ?'LCS(OD27017-BS1) Prepared&Analyzed:27-Apr-00 <br /> ead 52.0 2.5 mg/kg 50.0 104 80-120 <br /> LCS Dup(OD27017-BSD1) Prepared&Analyzed:27-Apr-00 <br /> {i S ead 55.0 2.5 mg/kg 50.0 110 80.120 5.61 20 <br /> Matrix Spike(OD27017-MS1) Source:W004596-02 Prepared&Analyzed:27-Apr-00 <br /> Lead 57.2 2.5 mg/kg '50.0 7.4 99.6 80.120 <br /> l �Iatrix Spike Dup (OD27017-MSD1) Source: W004596-02 Prepared&Analyzed:27-Apr-00 <br /> Lead 60.0 2.5 mglkg 50.0 7.4 105 80.120 4.78 20 <br /> r <br /> G�.1 <br /> r;. 1 <br /> 7 <br /> r . <br /> f � <br /> 'Sfcluoia.Analytical-Walnut Creek The results in this report apply to the samples analyzed in accordmtce with the chap;of <br /> ( _ 1 custody document.This malytical report must be reproduced in its entirety. <br /> i <br /> Page 9 of 11 <br />