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Page 39 of 57 <br /> tiff eurofins Quality Control - Spike/Spike Duplicate <br /> Calscience <br /> Date Received: 06/14114 <br /> Conestoga-Rovers&Associates 14-06-1139 <br /> 19449 Riverside Drive,Suite 230 Work Order: <br /> Preparation: EPA 35506 <br /> Sonoma, CA 95476-6955 Method: EPA 80156(M) <br /> Project: Cordes Ranch, Hansen Road, Tracy, CA <br /> Page 2 of 5 <br /> Quality Control Sample ID Type Matrix Instrument Date Prepared Date Analyzed MS/MSD Batch Number <br /> MW76-5 Sample Solid GC 47 06/16114 0611911401:36140616513 <br /> MWt6-5 Matrix Spike Solid GC 47 06116/14 0611811418:39 140616513 <br /> MW76.5 Matrix Spike Duplicate Solid GC 47 06116/14 0611811418:57 140616513 <br /> Sam le Soike MS MSD MSD ° Rec.CL RPD RPD CL Qualifiers <br /> Parameter Con Added Cone. ° Rec. Conc. %Rec. <br /> TPH as Crude Oil NO 400.0 389.9 97 391.7 98 64-130 0 0-15 <br /> `a <br /> U <br /> E <br /> p <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 />