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COLUMBIA ANALYTICAL SERVICES, INC <br /> Analytical Report <br /> Client EMCON Associates Date Received 02/13/92 <br /> Project EMCON Project No G71-17 01 Work Order # SJ92-0154 <br /> Arco Facility No 434 Sample Matrix Water <br /> BTEX and TPH as Gasoline <br /> EPA Methods 5030/8020/DHS LUFT Method <br /> Ng/L (ppb) <br /> Sample Name Method Blank_ Method Blank <br /> Date Analyzed 02/14/92 02/18/92 <br /> Analyte MRL <br /> Benzene 05 ND ND <br /> Toluene 05 ND ND <br /> Ethylbenzene 05 ND ND <br /> Total Xylenes 05 ND ND <br /> TPH as Gasoline 50 ND ND <br /> TPH Total Petroleum Hydrocarbons <br /> MRL Method Reporting Limit <br /> ND None Detected at or above the method reporting limit <br /> • <br /> Approved by l ��2 �"' Date C� <br /> 6 <br />