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s. s <br /> COLUMBIA ANALYTICAL SERVICES, INC <br /> ` Analytical Report <br /> Client EMCON Associates Date Received 11119/92 <br /> Project EMCON Project No OG71-017 01 Work Order No SJ92-1466 <br /> ARCO Facility No 434 Sample Matrix Water <br /> BTEX and TPH as Gasoline <br /> EPA Methods 5030/8020/California DHS LUFT Method <br /> uglL (ppb) <br /> Sample Name W-1 A (77) W-3 (68) W-5 (69) <br /> Date Analyzed 11/25/92 11/30/92 11/25/92 <br /> Analyte MRL <br /> Benzene 0 5 ND 5 2 ND <br /> Toluene 0 5 ND 0 8 ND <br /> Ethylbenzene 0 5 ND ND ND <br /> Total Xylenes 0 5 ND 1 0 ND <br /> TPH as Gasoline 50 ND 1,000 ND <br /> TPH Total Petroleum Hydrocarbons <br /> MRL Method Reporting Limit <br /> ND None Detected at or above the method reporting limit <br /> Approved by Date <br /> 2 <br />