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` COLUMBIA ANALYTICAL SERVICES, INC <br /> Analytical Report <br /> Client EMCON Associates Date Received 04/16/93 <br /> . Project EMCON Project No OG71-018 01 Service Request No SJ93-0521 <br /> ARCO Facility No 2093 Sample Matrix Water <br /> BTEX and TPH as Gasoline <br /> EPA Methods 5030/8020/California DHS LUFT Method <br /> Ng/L (ppb) <br /> Sample Name ATR-11 (23) ATR-12 (24) Method Blank <br /> Date Analyzed 04/23193 04/23/93 " 04/23/93 <br /> Analyte MRL <br /> Benzene 0 5 ND ND ND <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 ND <br /> TPH Total Petroleum Hydrocarbons <br /> MRL Method Reporting Limit <br /> ND None Detected at or above the method reporting lima <br /> This sample was part of the analytical batch started on April 23, 1993 However, it was <br /> analyzed after midnight so the actual date analyzed is April 24, 1993 <br /> Approved by dole LA42Date• <br /> 5 <br /> 1921 Ringwood Avenue • San Jose California 95131 • Telephone 4081437-2400 • Fox 408/437-9355 <br />