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' • Page 37 of 52 <br /> ' !!science <br /> A�vironmental Quality Control - Spike/Spike Duplicate <br /> ' Aw aboratories, Inc. <br /> ' GeoSyntec Consultants Date Received: 02/05/11 <br /> 475 14th Street, Suite 450 Work Order No: 11-02-0383 <br /> Oakland, CA 94612-1940 Preparation: EPA 5030C <br /> Method: EPA 82606 <br /> Project Newark Sierra Stockton / W R1194 <br /> ' Date Date MS/MSD Batch <br /> Quality Control Sample ID Matrix Instrument Prepared Analyzed Number <br /> 11-02-0290-12 Aqueous GC/MS V V 02/07111 02108/11 110207501 <br /> Parameter MS%REC MSD%REC %REC CL RPD RPD CL Qualifiers <br /> ' Benzene 102 96 78-120 6 0-20 <br /> Carbon Tetrachloride 89 86 67-139 4 0-20 <br /> Chlorabenzene 104 96 80-120 8 0-20 <br /> 12-Dibromoethane 97 96 80-123 1 0-20 <br /> ' 1,2-Dichlorobenzene 104 98 76-120 5 0-20 <br /> 1,2-Dichlorcethane 108 102 76-130 5 0-20 <br /> 1,1-Dichlorcethene 110 102 70-130 7 0-27 <br /> ' Ethylbenzene 105 97 73-127 8 0-20 <br /> Toluene 107 100 72-126 6 0-20 <br /> Trichloroethene 88 81 74-122 7 0-20 <br /> Vinyl Chloride 110 103 65-131 6 0-24 <br /> ' Methyl-t-Butyl Ether(MTBE) 91 89 69-123 2 0-20 <br /> 1 <br /> RPD <br /> ' ����U v`/• V"'t/ "Relative Percent Difference. CL-Control Limit <br /> 7440 Lincoln Way, Garden Grove, CA 92841-1427 . TEL:(714)895-5494 • FAX: (714)894-7501 <br /> 1 <br />