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COLUMBIA ANALYTICAL SERVICES. INC <br /> Analytical Report <br /> Client EMCON Associates Date Received 10/13/92 <br /> Project EMCON Project No OG71-018 01 Work Order No SJ92-1268 <br /> ARCO Facility No 2093 Sample Matrix Water <br /> BTEX and TPH as Gasoline <br /> EPA Methods 5030/8020/California DHS LUFT Method <br /> juglL Ippb1 <br /> Sample Name ATR-1 (261 ATR-2 1291 ATR (291 <br /> Date Anaiyzed 10/16/92 10/16/92 10/15/92 <br /> Analyte MRL <br /> Benzene 05 ND 5 7 240 <br /> Toluene 05 ND ND 48 <br /> Ethylbenzene 05 ND ND 62. <br /> Total Xylenes 05 ND ND 97. <br /> TPH as Gasoline 50 ND 59. 1.200 <br /> TPH Total Petroleum Hydrocarbons <br /> MRL Method Reporting Lima <br /> ND None Detected at or above the method reporting limit <br /> i <br /> i <br /> Approved by Date- - <br /> } <br /> 2 <br /> 1921 Ringwood Avenue • Son Jose California 95131 • Telephone 408/437-2400 • Fox 408/437-9356 <br />