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Page 20 of 28 <br /> a cience ' <br /> nvironmental Quality Control - LCS/LCSD <br /> aboratories, Inc. <br /> Leidos Date Received: 03/29/14 ' <br /> 1000 Broadway, Suite 675 Work Order: 14-03-2138 <br /> Oakland, CA 94607-4099 Preparation: EPA 3510C ' <br /> Method: EPA 8015B (M) <br /> Project: Alden Park Page 1 of 2 <br /> Quality Control Sample ID Type Matrix Instrument Date Prepared Date Analyzed LCS/LCSD Batch Number ' <br /> 099-15-304-650 LCS Aqueous GC 47 03/31/14 04/01/14 18:43 140331818 <br /> 099-15-304-650 LCSD Aqueous GC 47 03131/14 04101/1419:00 140331618 ' <br /> Parameter Spike LCS LCS LCSD LCSD %Rec.CL RPD RPD CL Qualifiers <br /> Added Conc. %Rec. Conc. %Rec. <br /> TPH as Diesel 2000 1646 82 1575 79 75-117 4 0-13 <br /> d <br /> o <br /> U <br /> E <br /> m <br /> 1 <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 />