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COLUMBIA ANALYTICAL SERVICES, INC <br /> QA/QC Report <br /> Client: EMCON Associates Date Received 03/12/93 <br /> Project: EMCON Project No OG71-038.01 Service Request No.: SJ93-0368 <br /> ARCO Facdrty No 2168 <br /> Initial Calibration Verification <br /> Halogenated Volatile Organic Compounds <br /> EPA Methods 5030/601 <br /> Nanograms <br /> Date Analyzed 03/16/93 <br /> EPA <br /> Percent <br /> Recovery <br /> True Percent Acceptance <br /> Anal a Value Result Recovery Criteria <br /> Chloromethane 50 17 34 D-193 <br /> Vinyl Chloride 50 45 90 28-163 <br /> Bromomethane 50 34 68 D-144 <br /> Chloroethane 50 31 62 46-137 <br /> Trichlorofluoromethane {Freon 11) 50 56 112 21-156 <br /> 1,1-Dichloroethene 50 42 84 28-167 <br /> Methylene Chloride 50 43 86. 25-162 <br /> trans-l,2-Dichloroethene 50 50 100 38-155 <br /> ,1•Dichloroethane 50 51 102 47-132 <br /> Chloroform 50 47 94 49-133 <br /> 1,1,1-Trichloroethane (TCA) 50 50 100 41-138 <br /> Carbon Tetrachloride 50 51 102 43-143 <br /> 1,2-Dichloroethane 50 55 110 51-147 <br /> Trichloroethene (TCE) 50 50 100. 35-146 <br /> 1,2-Dichloropropane 50 53 106 44-156 <br /> Bromodichloromethane 50 56 112. 42-172 <br /> trans-l,3-Dichloropropene 50 68 136 22-178 <br /> cis-1,3-Dichloropropene 50 59 118 22-178 <br /> 1,1,2-Trichloroethane 50 52. 104 39-136 <br /> Tetrachloroethene (PCE) 50 53 106 26-162 <br /> Dibromochloromethane 50 56 112 24-191 <br /> Chlorobenzene 50 54 108 38-150 <br /> Bromoform 50 43 86 13-159 <br /> 1,1,2,2-Tetrachloroethane 50 46 92 8-184 <br /> 1,3-Dichlorobenzene 50 46 92 7-187 <br /> 1,4-Dichlorobenzene 50 55 110 42-143 <br /> 1,2-Dichlorobenzene 50 51 102 D-208 <br /> D Detected <br /> W <br /> Approved by: Date: ZV Z�S� <br />