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COLUMBIA ANALYTICAL SERVICES, INC <br /> Anaiytical Report <br />(t Client EMCON Associates Date Received 03/12/93 <br /> Project- EMCON Project No OG71-038 01 Service Request No SJ93-0368 <br /> ARCO Facility No 2168 Sample Matrix Water <br /> BTEX and TPH as Gasoline <br /> EPA Methods 5030/8020/California DNS LUFT Method <br /> 1 ugIL (ppb) <br /> I <br /> Sample Name MW-1 (54) MW-2 (53) MW-3 (53) <br /> Date Analyzed 03/19/93 03/19/93 03/19/93 <br /> Analyte MRL <br /> Benzene 0 5 6,500 3,300 16,000 <br /> Toluene 0 5 340 1,500 1,300 <br /> Ethylbenzene 0 5 580 210 11800 <br /> Total Xylenes 0 5 1,700 1,000 4,900 <br /> f TPH as Gasoline 50 28,000 16,000 51 ,000 <br /> i <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 by Dateafc�' <br />