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COLUMBIA ANALYTICAL SERVICES. INC. <br /> Analytical Report <br /> :f <br /> Client* EMCON Associates Date Received: 08/26/92 t <br /> Project: EMCON Project No. G71-38.01 Work Order#: SJ92-1071 <br /> Arco Facility No 2168 Sample Matrix: Water <br /> BTEX and TPH as Gasoline <br /> EPA Methods 5030/8020/DHS LUFT Method <br /> yg/L (ppbl <br /> Sample Name MW-1 1541 MW-2 1531 MW-3 (541 <br /> Date Analyzed 08/31/92 08131/9211 08/31/92' <br /> Analy12 MRL <br /> Benzene 0 5 4,100. 2,400 15,000 <br /> Toluene 0 5 330. 1,100 9,400 <br /> Ethylbenzene 0.5 310. 110 2,300 <br /> Total Xylenes 0 5 490. 600 2,300 <br /> TPH as Gasoline 50 14,000 12,000 77,000 <br /> TPH Total Petroleum Hydrocarbons <br /> MRL Method Reporting Irma <br /> • This sample was part of the anaiyticai batch started on August 31, 1992. However, it was analyzed <br /> after midnight so the actual date analyzed is September 1, 1992. <br /> S <br /> Approved by„ O-Ank -Y.Gt� ,- Date q- q"a l <br /> 3 <br />