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n <br /> Page 19 of 26 <br /> riviron ental Quality Control - LCS/LCS Duplicate <br /> Laboratories, Inc. <br /> Oilfield Environmental and Compliance Date Received: N/A <br /> 307 Roemer Way Work Order No: 12-07-1428 <br /> Suite 300 Preparation: N/A <br /> Santa Maria, CA 93454-1105 Method: EPA TO-15 <br /> Project: 1203628 <br /> Date Date LCS/LCSD Batch <br /> Quality Control Sample ID Matrix Instrument Prepared Analyzed Number <br /> 095-01-021-10,323 Air GC/MS K N/A 07/26/12 120726L01 <br /> SPIKE LCS LCS LCSD LCSD <br /> Parameter ADDED CONC %REC CONC %REC %REC CL ME CL RPD RPD CL Qualifiers <br /> Methyl-t-Butyl Ether(MTBE) 25.00 28.24 113 27.76 111 50-150 33-167 2 0-35 <br /> Methylene Chloride 25.00 28.91 116 28.37 113 50-150 33-167 2 0-35 <br /> 4-Methyl-2-Penta none 25.00 25.75 103 25.03 100 50-150 33-167 3 0-35 <br /> o-Xylene 25.00 31.25 125 29.13 117 52-148 36-164 7 0-38 <br /> p/m-Xylene 50.00 62.61 125 58.42 117 42-156 23-175 7 0-41 <br /> Styrene 25.00 30.45 122 28.31 113 50-150 33-167 7 0-35 <br /> Tetrachloroethene 25.00 26.72 107 25.74 103 56-152 40-168 4 0-40 <br /> Toluene 25.00 24.52 98 23.83 95 56-146 41-161 3 0-43 <br /> Trichloroethene 25.00 26.98 108 26.59 106 63-159 47-175 1 0-34 <br /> Trichlorofluoromethane 25.00 28.79 115 27.88 112 50-150 33-167 3 0-35 <br /> 1,1,2-Tdchloro-1,2,2-Trifluoroethane 25.00 30.04 120 29.08 116 50-150 33-167 3 0-35 <br /> 1,1,1-Trichloroethane 25.00 27.61 110 26.74 107 50-150 33-167 3 0-35 <br /> 1,1,2-Trichloroethane 25.00 25.83 103 24.72 99 65-149 51-163 4 0-37 y <br /> 1,3,5-Trimethylbenzene 25.00 30.06 120 28.64 115 50-150 33-167 5 0-35 <br /> 1,1,2,2-Tetrachloroethane 25.00 24.51 98 23.36 93 50-150 33-167 5 0-35 <br /> 1,2,4-Tdmethylbenzene 25.00 29.57 118 28.27 113 50-150 33-167 4 0-35 <br /> 1,2,4-Tdchlorobenzene 25.00 38.88 156 37.17 149 50-150 33-167 5 0-35 ME <br /> Vinyl Acetate 25.00 27.63 111 26.82 107 50-150 33-167 3 0-35 <br /> Vinyl Chloride 25.00 31.10 124 31.47 126 45-177 23-199 1 0-36 <br /> Total number of LCS compounds: 51 <br /> Total number of ME compounds: 2 <br /> Total number of ME compounds allowed: 3 <br /> LCS ME CL validation result: Pass <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 />