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Page 13 of 26 <br /> alscience <br /> nvironmental Quality Control - Spike/Spike Duplicate <br /> aboratories, Inc. <br /> Parsons Date Received: 10/23/08 <br /> 2121 North California Blvd., Suite 500 Work Order No: 08-10-2038 <br /> Walnut Creek, CA 94596-7305 Preparation: EPA 7471A Total <br /> Method: EPA 7471 A <br /> Proiect Tracv SPCC/444692 <br /> Date Date MS/MSD Batch <br /> Quality Control Sample ID Matrix Instrument Prepared Analyzed Number <br /> 08-10-1908-1 Solid Mercury 10/23/08 10/23/08 081023S03 <br /> Parameter MS%REC MSD%REC %REC CL RPD RPD CL Qualifiers <br /> Mercury 106 109 84-138 2 0-7 <br /> RPD-Relative Percent Difference, CL-Control Limit <br /> 7440 Lincoln Way, Garden Grove, CA 92841-1427 . TEL:(714) 895-5494 FAX: (714) 894-7501 <br />