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COLUMBIA ANALYTICAL SERVICES, INC <br /> Ys <br /> QA/QC Report <br /> . Client EMCON Associates Date Received 09/02/93 <br /> Project EMCON Project No OG71-038 01 Service Request No 5J93-1 101 <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 /> Analyte Value Result Recovery Criteria <br /> Chloromethane 50 570 114 D-1 93 <br /> Vinyl Chloride 50 565 1 1 3 28-163 <br /> Bromomethane 50 55 6 1 i 1 D-144 <br /> Chloroethane 50 583 117 46-137 <br /> Trichlorofluoromethane (Freon 11 } 50 49 1 98 21-156 <br /> 1,1-Dichloroethene 50 44 5 89 28-167 <br /> Methylene Chloride 50 348 70 25-162 <br /> trans-1,2-Dichloroethene 50 440 88 38-155 <br /> Ae1,1-Dichloroethane 50 448 90 47-132 <br /> Chloroform 50 466 93 49-133 <br /> 1,1,1-Trcchloro ethane (TCA) 50 45 7 91 41-138 <br /> Carbon Tetrachloride 50 60 5 121 43-143 <br /> 1,2-Dichloroethane 50 45 5 91 51-147 <br /> Trichloroethene (TCE) 50 44 1 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 /> crs-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 54 7 109 24-191 <br /> Chlorobenzene 50 41 9 84 38-150 <br /> Bromoform 50 58 6 117 13-159 <br /> 1,1,2,2-Tetrachloroethane 50 35 6 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 0-208 <br /> D Detected <br /> s <br /> Approved bytii�'Jr' Date mil z1 I J17� <br /> 15 -- <br />