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COLUMBIA ANALYTICAL SERVICES INC <br /> Analytical Report <br /> Client EMCON Associates Date Received 08/04/93 <br /> Project EMCON Project No OG71-029 01 Service Request No SJ93-0960 <br /> ARCO Facility No 2130 Sample Matrix Water <br /> F <br /> BTEX and TPH as Gasoline <br /> EPA Methods 503018020/California DHS LUFT Method <br /> ug/L (ppb) <br /> Sample Name MW-6 (731 MW-7 (72) Method Blank <br /> Date Analyzed 08/10193 08/10/93 08/10/93 <br /> Analyte MRL <br /> I <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 /> I• TPH as Gasoline 50 170 ND ND <br /> Sample Name Method Blank Method Blank <br /> Date Analyzed 08/11/93 08/12/93 <br /> 1 <br /> Analvte MRL <br /> 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 /> 1 <br /> * This sample was part of the analytical batch started on August 10, 1993 However, it was <br /> analyzed after midnight so the actual date analyzed is August 1 1 1993 <br /> 1 <br /> Approved b / �' V� <br /> Y Date <br /> Q <br />