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COLUMBIA ANALYTICAL SERVICES. INC. <br /> QA/QC Report _ <br /> r t-. <br /> Client: EMCON Associates Date Received: 08/26/92 <br /> Project: EMCON Project No. G71-38.01 Work Order#: SJ92-1071 <br /> Arco Facility No. 2168 <br /> Initial Calibration Verification <br /> Halogenated Volatile Organic Compounds 4 r <br /> CPA Methods 5030/609 <br /> Nanograms <br /> EPA <br /> Percent <br /> Recovery <br /> True Percent Acceptance <br /> Analyte Value Result Recovery Crberia <br /> Chloromethane 50 43. 86. D-193 <br /> Vinyl Chloride 50 49. 98. 28-163 <br /> Bromomethane 50 55 110. D-144 <br /> Chloroethane 50 54. 108. 46-137 <br /> Tnchiorofluoromethane (Freon 11) 50 54 108. 21-156 <br /> 1,1-Dichloroethene 50 59 118. 28-167 <br /> Methylene Chloride 50 49. 98 25-162 <br /> trans-l,2-Dichloroethene 50 52 104 38-155 <br /> 1,1-Dichloroethane 50 50. 100. 47-132 <br /> Chloroform 50 47 94 49-133 <br /> 1,1,1-Tnchloroethane ITCA1 50 52 104. 41-138 <br /> Carbon Tetrachloride 50 52. 104 43-143 <br /> 1,2-Dichloroethane 50 58 116 51-147 <br /> Trichloroethene ITCE) 50 52 104 35-146 <br /> 1,2-Dichloropropane 50 53 106 44-156 <br /> Bromodichloromethane 50 50 100 42-172 <br /> trans-1,3-Dichloropropene 50 54 108 22-178 <br /> cts-1,3-Dtchloropropene 50 48 96 22-178 <br /> 1,1,2-Trichloroethane 50 52 104 39-136 <br /> Tetrachloroethene IPCE) 50 56 112. 26-162 <br /> Dibromochloromethane 50 49 98 24-191 <br /> Chlorobenzene 50 52 104 38-150 <br /> Bromofonn 50 41 82. 13-159 <br /> 1,1,2,2-Tetrachloroethane 50 49 98. 8-184 <br /> 1,3-Dichlorobenzene 50 50 100. 7-187 <br /> 1,4-Dichlorobenzene 50 55 110. 42-143 <br /> 1,2-Dichlorobenzene 50 51 102. D-208 <br /> i <br /> D Detected <br /> • <br /> � , � n z <br /> Approved by ["/�QJ�.4-( Date <br /> 11 <br />