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COLUMBIA ANALYTICAL SERVICES, INC ;:'* <br /> Analytical Report < `r <br /> Client EMCON Associates Date Received 06/11/93 <br /> 1 Project EMCON Project No OG71-038 01 Servace Request No SJ93-0776 <br /> ARCO Facility No 2168 Sample Matrix Water <br /> I <br /> BTEX and TPH as Gasoline <br /> EPA Methods 503018020/California QHS LUFT Method <br /> N9/L (ppb) <br /> 1 <br /> Sample Name MW-1 1541 MW-2 (53) MW-3 (53) <br /> I Date Analyzed 06/17193 06/17/93 06/17/93 <br /> Analyte MRL <br /> Benzene 0 5 5,600 3,700 12,000 <br /> i Toluene 0 5 640 1,800 2,100 <br /> Ethylbenzene 0 5 470 280 1 ,800 <br /> Total Xylenes 0 5 1 ,400 1 ,100 3,200 <br /> TPN as Gasoline 50 23,000 19000 44 000 <br /> i <br /> s <br /> Approved by � Date 2/� <br /> 4 <br />