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Page 53 of 73 <br /> a/science <br /> mw-nvironmental Quality Control - LCS/LCS Duplicate <br /> aboratories, Inc. <br /> Blaine Tech Services, Inc. Date Received: N/A <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 8260B <br /> Project: 3515 Navy Drive, Stockton, CA <br /> Date Date LCS/LCSD Batch <br /> Quality Control Sample ID Matrix Instrument Prepared Analyzed Number <br /> 099-12-7674,588Aqueous GC/MSQQ 09111/10 09/11/10 100911L01 <br /> Parameter LCS %REC LCSD%REC %REC CL RPD RPD CL Qualifiers <br /> Benzene 98 98 80-120 1 0-20 <br /> Ethylbenzene 99 101 80-123 2 0-20 <br /> Toluene 95 97 80-120 2 0-20 <br /> Methyl-t-Butyl Ether(MTBE) 93 94 75-123 1 0-25 <br /> Teri-Butyl Alcohol(TBA) 98 90 72-126 8 0-20 <br /> Diisopropyl Ether(DIPE) 103 104 75-129 1 0-22 <br /> Ethyl-t-Butyl Ether(ETBE) 95 95 76-124 0 0-20 <br /> Tert-Amyl-Methyl Ether(TAME) 93 94 79-121 1 0-20 <br /> Ethanol 118 122 53-143 3 0-25 <br /> TPPH 91 93 65-135 1 0-30 <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 />