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Page 19 of 31 <br /> L alscience <br /> environmental Quality Control - Spike/Spike Duplicate <br /> L aboratories,Inc. <br /> Conestoga-Rovers&Associates Date Received: 05/22/14 <br /> 19449 Riverside Drive, Suite 230 Work Order: 14-05-1684 <br /> Sonoma, CA 95476-6955 Preparation: EPA 35508 <br /> Method: EPA 80156(M) <br /> Project: Cordes Ranch, Hansen Road,Tracy, CA Page 1 of 3 <br /> Quality Control Sample ID Type Matrix Instrument Date Prepared Date Analyzed MS/MSD Batch Number <br /> 1.806.10 Sample Solid GC 47 05/23/14 05/24/1405:28140523S15 <br /> 1.1306-10 Matrix Spike Solid GC 47 05/23114 05/24/14 06:18 140523515 <br /> 1-1306-10 Matrix Spike Duplicate Solid GC 47 05/23/14 05/24/1406:35140523515 <br /> Parameter Samole Soike MS MS MSD MSD ° Rec.CL RPD RPD CL Qualiflers <br /> Cone. Added Cone. %Rec. Cone. °/Rec. <br /> TPH as Crude Oil NO 400.0 358.6 90 365.2 91 64-130 2 0-15 <br /> re <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 />