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COLUMBIA ANALYTICAL SERVICES, INC <br /> Analytical Report <br /> i Client: EMCON Associates bate Received. 10/08/92 <br /> Project EMCON Project No OG71-029 01 Work Order #• SJ92-1247 <br /> Arca Facility No 2130 Sample Matrix- Water <br /> i <br /> BTEX and TPH as Gasoline <br /> EPA Methods 503018020/DHS LUFT Method <br /> NgfL (ppb) <br /> J J � <br /> Sample Name MW-11741 MW-2 (21 MW-3 1731 <br /> i Date Analyzed 10/12/92 10/12/92 10/12192 <br /> Analyte MRL <br /> Benzene 0.5 2,500 90 58 <br /> Toluene 0 5 600 5 4 NO <br /> Ethylbenzene 05 210 12. NO <br /> Total Xylenes 0 5 470 7 9 1 8 <br /> TPH as Gasoline 50 11,000 950 300 <br /> TPH Total Petroleum Hydrocarbons <br /> MRL Method Reporting Limit <br /> ND None Detected at or above the method reporting limit <br /> Approved by `t Dater <br />