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Page 27 of 48 <br /> eurofins Quality Control -Spike/Spike Duplicate <br /> Calscience <br /> EarthCon Consultants, Inc. Date Received: 10/02/15 <br /> 2124 Main Street, Suite 200 Work Order: 15-10-0164 <br /> Huntington Beach, CA 92648-2030 Preparation: EPA 5030C <br /> Method: EPA 8015B(M) <br /> Project: Cove Contractors/04.20090407.00 Page 2 of 5 <br /> Quality Control Sample ID Type Matrix Instrument Date Prepared Date Analyzed MS/MSD Batch Number <br /> Parameter Sample Spike MS MS MSD MSD %Rec.CL RPD RPD CL Qualifiers <br /> Conc. Added Conc. %Rec. Conc. %Rec. <br /> TPH as Gasoline ND 2000 2045 102 1991 100 68-122 3 0-18 <br /> v <br /> 0 <br /> U <br /> 0 <br /> C <br /> 3 <br /> N <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 />