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Page 8 of 21 <br /> i <br /> alscience <br /> ,E nvironmental Quality Control - Spike/Spike Duplicateel <br /> `"a� <br /> aboratories, Inc. <br /> Shell Oil Pipeline Company LP Date Received: 10/21/08 <br /> P.O. Box 2648 Work Order No: 08-10-1847 <br /> Houston, TX 77252-2648 Preparation: Extraction <br /> Method: EPA 418.1M <br /> Project 25705 Patterson Pass Rd., Tracy, CA <br /> Date Date MSJMSD Batch <br /> Quality Control Sample ID Matrix Instrument Prepared Analyzed Dumber <br /> 06-10-1663-4 Solid 1R#1 10/23/08 10123106 081023501 <br /> Parameter MS%REC MSD%REC %REC CL RPD RPD CL Qualifiers <br /> TRPH 66 64 55-135 1 0-30 <br /> RPD-Relative Peroent Difference, CL-Control Limit <br /> 7440 Lincoln Way, Garden Grove, CA 92841-1427 . TEL:(714) 895-5494 . FAX: (714)894-7501 <br />