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Page 5 of 11 <br /> aiscience <br /> nvironmentai Quality Control - Spike/Spike Duplicate <br /> aboratories, inc. <br /> Kiff Analytical Date Received: 09/27/13 <br /> 2795 2nd Street, Suite 300 Work Order: 13-09-1761 <br /> Davis, CA 95618-6505 Preparation: N/A <br /> Method: EPA 1664A <br /> Project: Parcel 2A Page 1 of 1 <br /> Quality Control Sample ID Matrix Instrument Date Prepared Date Analyzed MS/MSD Batch Number <br /> 13-09-1856-1 Aqueous N/A 09/27/13 09/27/13 20:30 D0927HEMS1 <br /> Parameter Sample Spike MS MS MSD MSD %Rec.CL RPD RPD CL Qualifiers <br /> Conc. Added Conc. %Rec. Conc. %Rec. <br /> HEM:Oil and Grease 23.80 40.00 62.20 96 62.10 96 78-114 0 0-18 <br /> N <br /> N <br /> C <br /> O <br /> U <br /> 0 <br /> E <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 />