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COLUMBIA ANALYTICAL SERVICES, INC <br /> Analytical Report <br /> Client EMCON Associates Date Received 03/03/93 <br /> Project EMCON Project No OG71-051 01 Service Request No SJ93-0304 <br /> ARCO Facility No 6020 Sample Matrix Water <br /> STEX and TPH as Gasoline <br /> EPA Methods 5030/8020/California DHS LUFT Method <br /> Ng/L ippbl <br /> Sample Name MW-1 MW-2 (38) MW-3 (36) <br /> Date Analyzed 03/09193 03/09/93 03/09/93 " <br /> Analyle MRL <br /> iBenzene 0 5 NO ND ND <br /> Toluene 0 5 ND ND ND <br /> Ethylbenzene 0 5 ND ND NO <br /> Total Xylenes 0 5 ND NO NO <br /> TPH as Gasoline 50 NO ND NO <br /> TPH Total Petroleum Hydrocarbons <br /> MRL Method Reporting Lima <br /> ND None Detected at or above the method reporting limit <br /> This sample was part of the analytical batch started on March 9, 1993 However, it was <br /> analyzed after midnight so the actual date analyzed is March 10, 1993 <br /> r lG /�J <br /> Approved oved by �� Date <br /> 2 <br />