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1 <br /> 1 <br /> COLUMBIA ANALYTICAL SERVICES. INC. - <br /> Analytical Report <br /> 1 Client- EMCON Associates Date Received. 10/08/92 <br /> 1 Project EMCON Project No OG71-029 01 Work Order #• SJ92-1247 <br /> Arco Facility No 2130 Sample Matnx: Water <br /> 1 <br /> 1 <br /> STEX and TPH as Gasoline <br /> EPA Methods 5030/8020/DHS LUFT Method <br /> yg/L (ppb) <br /> i <br /> Sample Name MW-4[74) MW-5 (76) Method Blank <br />► Date Analyzed 10/13/92 10/13/92 10/12/92 <br /> I <br /> Analyte MRI, <br /> Benzene 0 5 26 59. ND <br /> i Toluene 05 3 5 34 ND <br /> Ethylbenzene 05 ND 2 1 NO <br /> Total Xylenes 0 5 22 45 ND <br /> TPH as Gasoline 50 260 460 ND <br /> TPH Total Petroleum Hydrocarbons <br /> MRL Method Reporting Lima <br /> ND None Detected at or above the method reporting limit <br /> Approved bye Date <br />