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Page 12 of 18 <br /> Ciain <br /> science <br /> vironmental Quality Control - Laboratory Control Sample <br /> aboratories, Inc. <br /> Kiff Analytical Date Received NIA <br /> 2795 2nd Street, Suite 300 Work Order No 05.05-1068 <br /> Davis, CA 95616-6593 Preparation EPA 3010A Total <br /> Method EPA 200 7 <br /> Project 2575 Country Club Boulevard, Stockton <br /> Quality Control Sample ID Matrix Instrument Date Analyzed Lab File ID LCS Batch Number <br /> r <br /> Parameter Conc Added Conc Reo_vered LQra%Rec %Rec CL QualifieD <br /> Cadmium 100 105 105 85-115 <br /> Chromium(Total) 100 108 108 85-115 <br /> Copper 100 0 927 93 85-115 <br /> Lead 100 108 108 85-115 <br /> Nickel 100 107 107 85-115 <br /> Zinc 100 108 108 85-115 <br /> RPO-Relative Percent Difference, CL-Control Limit <br /> 7440 Lincoln Way, Garden Grove, CA 92841-1427 . TEL (714) 895-5494 . FAX (714) 894-7501 <br />