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COLUMBIA ANALYTICAL SERVICES, INC <br /> QA/QC Report <br /> Client EMCON Associates Date Received 11/01/93 <br /> Project: EMCON Project No OG71-038 01 Service Request No - SJ93-1339 <br /> I ARCO Facility No 2168 <br /> Initial Calibration Verification <br /> Halogenated Volatile Organic Compounds <br /> EPA Methods 5030/601 <br /> Nanograms <br /> Date Analyzed 11/03/93 <br /> EPA <br /> I <br /> Percent <br /> Recovery <br /> True Percent Acceptance <br /> Analyte Value Result Recovery Criteria <br /> Chloromethane 100 134 134 D-193 <br /> Vinyl Chloride 100 119 119 28-163 <br /> Bromomethane 100 114 114 D-144 <br /> I Chloroethane 100 112 112 46-137 <br /> Trichiorofluoromethane (Freon 1 1) 100 109 109 21-156 <br /> 1,1-D,chlorcethene 100 105 105 28-167 <br /> Methylene Chloride 100 1 1 1 1 l 1 25-162 <br /> trans-l,2-Dichloroethene 100 105 105 38-155 <br /> I� 1,1-Dichloroethane 100 107 107 47-132 <br /> Chloroform 100 116 116 49-133 <br /> 1,1,1-Trichloroethane (TCA) 100 115 115 41-138 <br /> Carbon Tetrachloride 100 116 116 43-143 <br /> 1,2-DEchloroethane 100 116 1 1 6 51-147 <br /> Trichloroethene (TCE) 100 112 112 35-146 <br /> 1,2-Dichloropropane 100 1 1 2 1 1 2 44-156 <br /> 8romodichloromethane 100 113 113 42-172 <br /> trans-l,3-Dichioropropene 100 122 122 22178 <br /> c►s-1,3-Dichloropropene 100 115 115 22-178 <br /> 1,1,2-Trichloroethane 100 116 1 1 6 39-136 <br /> Tetrachloroethene (PCE) 100 114 114 26-162 <br /> Dibromochloromethane 100 117 117 24-191 <br /> Chlorobenzene 100 117 117 38-150 <br /> Bromoform 100 118 118 13-159 <br /> 1,1,2,2-Tetrachloroethane 100 96 96 8-184 <br /> 1,3-Dichlorobenzene 100 118 118 7-187 <br /> 1,4-Dichlorobenzene 100 113 113 42-143 <br /> 1,2-Dichlorobenzene 100 109 109 D-208 <br /> I <br /> I <br /> I Approved by Date <br /> 16 <br />