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COLUMBIA ANALYTICAL SERVICES. INC. <br /> Analytical Report , <br /> x <br /> .4k <br /> Client: EMCON Associates Date Received: 04/23/92 ' <br /> Project. EMCON Project No. G71-2901 Work Order#• SJ92-0490 <br /> Arco Facility No 2130 Sample Matrix: Water <br /> BTEX and TPH as Gasoline <br /> EPA Methods 5030/8020/DHS LUFT Method <br /> jig/L (ppb) <br /> Sample Name Method Blank Method Blank Method Blank <br /> Date Analyzed 04/27/92 04/29/92 05/01/92 _ <br /> Analyte MRL <br /> Benzene 05 ND ND ND <br /> Toluene 05 ND ND ND <br /> Ethylbenzene 05 ND ND ND <br /> Total Xylenes 05 ND ND ND <br /> TPH as Gasoline 50 ND ND ND <br /> TPH Total Petroleum Hydrocarbons <br /> MRL Method Reporting Limit <br /> ND None Detected at or above the method reporting limit <br /> i <br /> Approved bir lrc� Date Pet <br /> 3 <br />