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I <br /> COLUMBIA ANALYTICAL SERVICES. INC <br /> Analytical Report <br /> • Client EMCON Associates Date Received 04/21/93 <br /> I Project EMCON Project No OG71-050 01 Service Request No SJ93-0541 <br /> ARCO Facility No 2076 Sample Matrix Water <br /> I <br /> BTEX and TPH as Gasoline <br /> EPA Methods 5030/8020/California DHS LUFT Method <br /> ug/L (ppb) <br /> I <br /> I Sample Name MW-4 (62) Method Blank <br /> Date Analyzed 04/26/93 04/26/93 <br /> Analyte MRL <br /> I• Benzene 0 5 ND ND <br /> Toluene 0 5 ND ND <br /> Ethylbenzene 0 5 ND ND <br /> Total Xylenes 0 5 ND ND <br /> TPH as Gasoline 50 ND ND <br /> I <br /> I <br /> TPH Total Petroleum Hydrocarbons <br /> MRL Method Reporting Umit <br /> ND None Detected at or above the method reporting limit <br /> I <br /> I <br /> Approved by Date <br /> I <br /> 3 <br />