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COLUMBIA ANALYTICAL SERVICES. INC <br /> QA/QC Report <br /> Client EMCON Associates Date Received 11/01/93 <br /> 1 Project EMCON Project No OG71-038 01 Service Request No SJ93-1339 <br /> Arco Facility No 2168 Sample Matrix Water <br /> Continuing Calibration Summary <br /> Inorganics <br /> SM 5520 <br /> mg/L (ppm) <br /> I <br /> CAS <br /> 1 Percent <br /> Recovery <br /> True Percent Acceptance <br /> Analyte Value Result Recovery Criteria <br /> Hydrocarbons, IR 40 37 5 94 90-110 <br /> I� <br /> 1 <br /> I <br /> 1 <br /> I <br /> s <br /> SM Standard Methods for the Examination of Water and Wastewater, 1 7th Ed , 1989 <br /> Approved by Date <br /> 107 q nnu„,ni Aaan iq Cnn 1- r-t s_-, - ncAi9 v_t_aG ___ .ne <br />