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Page 12 of 16 <br /> &. alsc%nce <br /> nvironmenta/ Quality Control - LCS <br /> SW <br /> aboratories, Inc. <br /> Cardno ERI Date Received: 10/03/13 <br /> 601 North McDowell Blvd. Work Order: 13-10-0243 <br /> Petaluma, CA 94954-2312 Preparation: N/A <br /> Method: EPA TO-3M <br /> Project: ExxonMobil 99CAS/022789C Page 3 of 3 <br /> Quality Control Sample ID Matrix Instrument Date Analyzed LCS Batch Number <br /> 4$$•61-005.4977 Air GC 13 10103/13 09:42 1$100$1.01 <br /> Parameter Spike Added Conc.Recovered LCS%Rec. %Rec.CL Qualifiers <br /> TPH as Gasoline 932.5 768.8 82 80-120 <br /> d <br /> 0 <br /> U <br /> 0 <br /> c <br /> m <br /> RPD:Relative Percent Difference. CL:Control Limits <br /> 7440 Lincoln Way,Garden Grove,CA 92841-1427 • TEL:(714)895-5494 - FAX:(714)894-7501 <br />