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= COLUMBIA ANALYTICAL SERVICES, INC <br /> QA/QC Report <br /> Client- EMCON Associates Date Received. 09/02/93 <br /> . Project: EMCON Project No OG71-038 01 Service Request No SJ93-1 101 <br /> ARCO Facility No 2168 <br /> Initial Calibration Verification <br /> Halogenated Volatile Organic Compounds <br /> EPA Methods 5030/601 <br /> Nanograms <br /> Date Analyzed 09/10/93 <br /> EPA <br /> Percent <br /> Recovery <br /> True Percent Acceptance <br /> Analyle Value Result Recovery Criteria <br /> Chloromethane 50 570 114 D-193 <br /> Vinyl Chloride 50 565 113 28-163 <br /> Bromomethane 50 556 1 1 1 D-144 <br /> Chloroethane 50 58 3 1 1 7 46-137 <br /> Trichlorofluoromethane (Freon 1 1) 50 49 1 98 21-156 <br /> 1,1-Dichloroethene 50 445 89 28-167 <br /> Methylene Chloride 50 348 70 25-162 <br /> trans-1,2-Dichloroethene 50 440 88 38-155 <br /> 1,1-Dichloroethane 50 448 90 47-132 <br /> Chloroform 50 46 6 93 49-133 <br /> ,1,1-Trichloroethane (TCA) 50 45 7 91 41-138 <br /> arbon Tetrachloride 50 605 121 43-143 <br /> 1,2-Dichloroethane 50 455 91 51-147 <br /> Trichloroethene (TCE) 50 441 88 35-146 <br /> 1,2-Dichloropropane 50 41 5 83 44-156 <br /> Bromodichloromethane 50 350 70 42-172 <br /> trans-l,3-Dichloropropene 50 52 9 106 22-178 <br /> cis-1,3-Dichloropropene 50 404 81 22-178 <br /> 1,1,2-Trichloroethane 50 38 7 77 39-136 <br /> Tetrachloroethene (PCE) 50 442 88 26-162 <br /> Dibromochloromethane 50 547 109 24-191 <br /> Chlorobenzene 50 41 9 84 38-150 <br /> Bromoform 50 586 117 13-159 <br /> 1,1,2,2-Tetrachloroethane 50 356 71 8-184 <br /> 1,3-Dichlorobenzene 50 45 9 92 7-187 <br /> 1,4-Dichlorobenzene 50 464 93 42-143 <br /> 1,2-Dichlorobenzene 50 41 4 83 D-208 <br /> D Detected <br /> Approved byti� Dale <br /> •oma. o .., _ _ c__ _ _ r_ _ _ _ .,� <br /> 15 <br />