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Page 8 of 18 <br /> alscience <br /> nvironmenta! Quality Control - Spike/Spike Duplicate <br /> Laboratories, Inc. <br /> Shell Oil Pipeline Company LP Date Received: 02104/10 <br /> P.O. Box 2648 Work Order No: 10-02-0380 <br /> 5 <br /> Houston,TX 77252-2648 Preparation: EPA 1311 <br /> s Method: EPA 8260B <br /> Project 25705 Patterson Pass Rd., Tracy, CA <br /> Date Date MSIMSD Batch <br /> Quality Control Sample.ID Matrix Instrument prepared Analyzed Number <br /> 10.02.0588.1 Solid OC1MS L 02105110 02110/10 100210302 <br /> Parameter MS° REC MSD%REC %REC CL RPD RPD C Quallfiers <br /> Benzene 99 99 72-120 0 0-20 <br /> Carbon Tetrachlorlde 104 108 63-135 2 0-20 <br /> Chlor+obenzene 102 105 80.120 3 0-20 <br /> 1,2-131bromoethane 111 109 80-120 2 0-20 <br /> 1,2-Dichlorobenzene 104 .1w 80-120 1 0-20 <br /> 1,1-Dichloroethene 124 121 80-132 3 0-24 <br /> Ethytbenzene i11 116 76-120 5 0-20 <br /> Toluene 104 102 74-122 1 0-20 <br /> Trichloroethene 109 112 697120 3 0-20 <br /> Vinyl Chloride 95 98 58-130 4 0-20 <br /> Methyl-t•Butyl Einar(MTBE) 111 116 72-126 5 0-21 <br /> Tart-Butyl Afcohol(TBA) 92 90 .72-128 2 0-20 <br /> Diisopropyl Ether(DIPS) 104 108 71-137 4 0-23 l <br /> Ethyl-t-Butyl Ether(ETSE) 105 107 74-128 2 0-20 <br /> Tert-Amyl-Methyl Ether(TAME) 112 112 76-124 0 0-20 <br /> Ethanol 87 SO 35-167 2 048 <br /> l <br /> h <br /> i <br /> RPD-Relative Percent Difference CL-Control Limit <br /> t <br /> 7440 Lincoln Way,Garden Grove,CA 92841-1427 . TEL:{714}895-5494 FAX: (714)894-7501 <br />