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0 • Page 44 of 52 <br /> Calscience , <br /> &environmental Quality Control - LCS/LCS Duplicate <br /> Laboratories, Inc. ' <br /> GeoSyntec Consultants Date Received: N/A , <br /> 475 14th Street, Suite 450 Work Order No: 11-02-0383 <br /> Oakland, CA 94612-1940 Preparation: EPA 5030C <br /> Method: EPA 8260B <br /> Project: Newark Sierra Stockton /WR1194 ' <br /> Date Date LCS/LCSD Batch <br /> Quality Control Sample ID Matrix Instrument Prepared ' <br /> Analyzed Number <br /> 099.14001-3,616 Aqueous GC/MS V V 02107111 02107M 1 1102071-01 <br /> Parameter LCS%REC LCSD%REC %REC CL ME CL RPD RPD CL Qualifiers , <br /> Benzene 96 92 80-120 73-127 4 0-20 <br /> Carbon Tetrachloride 87 79 66-138 54150 10 0-20 <br /> Chlorobenzene 100 96 80-120 73-127 4 0-20 <br /> 1,2-Dibromoethane 101 95 80-120 73-127 6 0-20 <br /> 1,2-Dichlorobenzene 104 98 80-120 73-127 7 0-20 <br /> 1,2-Dichloroethane 104 100 80-129 72-137 5 0-20 <br /> 1,1-Dichloroethene 97 96 71-131 61-141 1 0-20 ' <br /> Ethylbenzene 99 94 80-123 73-130 5 0-20 <br /> Toluene 106 96 79-121 72-128 10 0-20 <br /> Trichloroethene 81 78 80-120 73-127 3 0-20 ME <br /> Vinyl Chloride 98 93 70-136 59-147 5 0-20 , <br /> Methyl-t-Butyl Ether(MTBE) 92 93 72-126 63-135 1 0-22 <br /> Total number of LCS compounds: 12 <br /> Total number of ME compounds: 1 , <br /> Total number of ME compounds allowed: 1 <br /> LCS ME CL validation result: Pass <br /> ����,V`/• V-'`/RPD <br /> •`Relative Percent Difference, CL-Control Limit <br /> 7440 Lincoln Way, Garden Grove, CA 92841-1427 . TEL:(714)895-5494 . FAX: (714)894-7501 <br />