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COLUMBIA ANALYTICAL SERVICES, INC. <br /> I <br /> Analytical Report <br /> Client: EMCON Associates Date Received: 06/09/93 <br /> Project: EMCON Project No. OG71-033.01 Service Request No.: SJ93-0761 <br /> ARCO Facility No. 548 Sample Matrix: Water <br /> BTEX and TPH as Gasoline <br /> EPA Methods 5030/8020/California DHS LUFT Method <br /> g9iL (ppb+ <br /> Sample Name: MW-4 MW-5 (61,� Method Blank <br /> Date Analyzed: 06/15/93 06/17/93 06/15/93 <br /> Analyte MRL <br /> Benzene 0.5 NO 40. NO <br /> • Toluene 0.5 NO 1 ,4 ND <br /> Ethylbenzene 0.5 ND 42. NO <br /> Total Xylenes 0.5 ND 58. NO <br /> TPH as Gasoline 50 NO 1,100. NO <br /> Approved by: Date: � , <br />