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i COLUMBIA ANALYTICAL SERVICES, INC <br /> A <br /> ^ti1y i <br /> Analytical Report <br /> Client EMCON Associates Date Received 08/26/92 s <br /> Project EMCON Project No G71-38 01 Work Order # SJ92-1071 <br /> I Arco Facility No 2168 Sample Matrix Water <br /> I BTEX and TPH as Gasoline <br /> EPA Methods 5030/8020/DHS LUFT Method <br /> ug/L (ppb) <br /> 1 <br /> Sample Name Method Blank <br /> Date Analyzed 08/31/92 <br /> 1 <br /> Analyte MRL <br /> Benzene 0 5 ND <br /> Toluene 0 5 ND <br /> Ethylbenzene 0 5 ND <br /> 1 Total Xylenes 0 5 ND <br /> TPH as Gasoline 50 ND <br /> 1 <br /> TPH Total Petroleum Hydrocarbons <br /> MRL Method Reporting Limit <br /> ND None Detected at or above the method reporting limit <br /> 1 <br /> 1 <br /> 1� <br /> Approved by _ l��l Date L( <br /> 4 <br />