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0 <br />Page 14 of 24 <br />!!science <br />nvironmental Quality Control - Laboratory Control Sample <br />aboratories, Inc. <br />Conestoga -Rovers & Associates Date Received: N/A <br />19449 Riverside Drive, Suite 230 Work Order No: 08-04-2322 <br />Sonoma, CA 95476-6955 Preparation: Extraction <br />Method: EPA 418.1 M <br />Project: 3515 Navy Drive, Stockton, CA <br />Quality Control Sample ID Matrix Instrument Date Analyzed Lab File ID LCS Batch Number <br />099-07-015-1,350 Solid IR#1 04128108 NONE 080428L02 <br />Parameter Conc Added Conc Recovered LCS %Rec %Rec CL Qualifiers <br />TRPH 100 103 103 70-130 <br />RPD - Relative Percent Difference CL- Control Limit <br />7440 Lincoln Way, Garden Grove, CA 92841-1427 . TEL: (714) 895-5494. FAX: (714) 894-7501 <br />