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ri-• f, <br /> t <br /> COLUMBIA ANALYTICAL SERVICES. INC <br /> Analytical Report <br /> aClient EMCON Associates Date Received 11/19/92 <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 /> NgIL (ppb) <br /> Sample Name W-9 {781 W-10 1781 W-11 (79l <br /> Date Analyzed 11/25/92 11/25/92 11/25/92 <br /> Analyte MRL <br /> Benzene 0 5 ND 3 5 <07 <br /> Toluene 0 5 ND ND ND <br /> Ethylbenzene 0 5 ND ND ND <br /> Total Xylenes 0 5 ND ND ND <br /> TPH as Gasoline 50 ND ND 59 <br /> TPH Total Petroleum Hydrocarbons <br /> MRL Method Reporting Limit <br /> ND None Detected at or above the method reporting limit <br /> ' Raised MRL due to matrix interference <br /> Approved by &A44 _ Date <br /> 4 <br />