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Page 17 of 29 <br /> alscience <br /> j�_nvironmental Quality Control - Spike/Spike Duplicate , <br /> aboratories, Inc. <br /> SAIC Date Received: 05/28/11 ' <br /> 1000 Broadway, Suite 675 Work Order No: 11-05-1798 <br /> Oakland, CA 94607-4099 Preparation: EPA 5030C , <br /> Method: EPA 8260B <br /> Project TRACY PUMP STATION / 26011S154A-R10-410 ' <br /> Date Date MS/MSD Batch <br /> Quality Control Sample ID Matrix Instrument Prepared Analyzed Number <br /> 11-05-1777-1 Solid GC/MS PP 05127/11 05/31/11 110531501 , <br /> Parameter MS%REC MSD%REC %REC CL RPD RPD CL Qualifiers ' <br /> Benzene 96 100 61-127 4 0-20 <br /> Ethylbenzene 102 103 57-129 1 0-22 <br /> Toluene 95 97 63-123 1 0-20 <br /> RPO-Relative Percent Difference, CL-Control Limit <br /> ����Jh, � 7440 Lincoln Way, Garden Grove, CA 92841-1427 . TEL:(714) 895-5494 FAX: (714) 894-7501 , <br /> "L <br />