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Page 18 of 28 <br /> alscience ' <br /> nvironmental Quality Control - Spike/Spike Duplicate <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 MS/MSD Batch Number ' <br /> MW-4 Sample Aqueous GC 47 03/31114 04/01/1420:46 140331518 <br /> MW-4 Matrix Spike Aqueous GC 47 03/31/14 0410111419:53 140331518 <br /> MW-4 Matrix Spike Duplicate Aqueous GC 47 03/31/14 04/01/1420.11 140331518 <br /> Parameter Samole Spike MS MS MSD MSD %Rec.CL RPD RPD CL Qualifiers <br /> Conc. Added Conc. %Rec. Conc. %Rec. <br /> TPH as Diesel ND 2000 1733 87 1816 91 55-133 5 0-30 <br /> v <br /> 0 <br /> U <br /> c <br /> m <br /> I <br /> RPD:Relative Percent Difference. CL:Control Limits r <br /> 7440 Lincoln Way,Garden Grove,CA 92841-1427 TEL:(714)895-5494 FAX:(714)894-7501 1 <br /> 1 <br />