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Page 48 of 73 <br /> alscience <br /> nvironmental Quality Control - Spike/Spike Duplicate . , <br /> 14�11N ,�; <br /> 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 5030B <br /> Method: LUFT GC/MS/ EPA <br /> 8260B <br /> Prosect 3515 Navy Drive, Stockton, CA <br /> Date Date MS/MSD Batch <br /> Quality Control Sample ID Matrix Instrument Prepared Analyzed Number <br /> 10-09-0128-16 Aqueous GUMS T 09/13/10 09/13/10 100913501 <br /> Parameter MS%REC MSD%REC %REC CL RPD RPD CL Qualifiers <br /> Benzene 95 97 80-120 2 0-20 <br /> Ethylbenzene 97 100 73-127 3 0-20 <br /> Toluene 96 98 80-120 2 0-20 <br /> Methyl-t-Butyl Ether(MTBE) 110 115 65-131 5 0-22 <br /> Tert-Butyl Alcohol(TBA) 87 89 62-134 1 0-20 <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 />