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Page 47 of 73 <br /> a/science <br /> =nvironmental Quality Control - Spike/Spike Duplicate <br /> f aboratories, Inc. <br /> Blaine Tech Services, Inc. Date Received: 09/02/10 <br /> 1680 Rogers Avenue Work Order No: 10-09-0132 <br /> San Jose, CA 95112-1105 Preparation: EPA 5030C <br /> Method: LUFT GC/MS / EPA <br /> 8260C <br /> Proiect 3515 Navy Drive, Stockton, CA <br /> Date Date MS/MSD BatchQualit Control Sample ID Matrix <br /> Instrument Prepared Analyzed Number <br /> 10-09-0695-1 —Aqueous GUMS QQ09/11110 09112110Sr 100911502 <br /> Parameter MS%REC MSD%REC %REC CL RPD RPD CL Qualifiers <br /> Benzene 87 85 80-120 1 0-20 <br /> Ethylbenzene 91 91 73-127 0 0-20 <br /> Toluene 89 89 80-120 1 0-20 <br /> PID <br /> -v •`Relative Percent Difference, CL-Control Limit <br /> 7440 Lincoln Way, Garden Grove, CA 92841-1427 . TEL:(714) 895-5494 . FAX: (714) 894-7501 <br />