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Page 28 of 34 <br /> .. alscience <br /> jw_nvironmental Quality Control - LCS/LCS Duplicate <br /> f aboratories, Inc. bow <br /> Blaine Tech Services, Inc. Date Received: N/A <br /> 1680 Rogers Avenue Work Order No: 10-12-0496 <br /> San Jose, CA 95112-1105 Preparation: EPA 5030C <br /> Method: LUFT GUMS / 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 /> 090.12-767-5,030 Aqueous GC%MS RR 12/14/10 12/14/10 101'11401 <br /> Parameter LCS%REC LCSD%REC %REC CL RPD RPD CL Qualifiers <br /> Benzene 90 90 80-120 0 0-20 <br /> Ethylbenzene 93 94 80-123 1 0-20 <br /> Toluene 90 91 79-121 0 0-20 <br /> Methyl-t-Butyl Ether(MTBE) 84 83 72-126 1 0-22 <br /> Tert-Butyl Alcohol(TBA) 85 84 71-125 1 0-25 <br /> Diisopropyl Ether(DIPE) 87 85 69-129 2 0-20 <br /> Ethyl-t-Butyl Ether(ETRE) 85 85 69-129 0 0-20 <br /> Tert-Amyl-Methyl Ether(TAME) 86 86 67-133 1 0-20 <br /> TPPH 90 91 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 />