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e alscience <br /> AM_nvironental Quality Control - Laboratory Control Sample <br /> LF aboratories, Inc. <br /> Kiff Analytical Date Received: 05/07/03 <br /> 2795 2nd Street, Suite 300 Work Order No: 03-05-0332 <br /> Davis, CA 95616-6593 Preparation: Total Digestion <br /> Method: EPA 601013 <br /> Project: 7-Eleven Store#32262 <br /> Quality Control Sample ID Matrix Instrument Date Analyzed Lab File ID LCS Batch Number <br /> 007- 1 D . .:.' .��oftdl 1GP X03 n 7-1-06 03dOM05 <br /> Parameter Conc Added Conc Recovered %Rec CL Qualifie <br /> Lead 50.0 47.4 95 80-120 <br /> i <br /> 7440 Lincoln Way,Garden Grove,CA 92841-1432 • TEL:(714)895-5494 • FAX:(714)894-75(}1 <br />