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COLUMBIA ANALYTICAL SERVICES, INC. ...- <br /> ,-k . <br /> Analytical Report <br /> Client: EMCON Associates Date Received: 09/09/92 <br /> Project: EMCON Project No. G71-33.03 Work Order #. SJ92-1 126 <br /> Arco Facility No. 548 Sample Matrix: Water <br /> BTEX and TPH as Gasoline <br /> EPA Methods 503018020/DHS LUFT Method <br /> Ng/L (ppb) <br />• <br /> Sample Name: MW-4 (64) Method Blank Method Blank <br /> Date Analyzed: 09/10/92 09110192 09/14192 <br /> Anal MRL <br /> Benzene 0.5 NO NO ND <br /> Toluene 0.5 NO ND NO <br /> Ethyibenzene 0.5 NO NO NO <br /> Total Xylenes 0.5 ND ND NO <br /> TPH as Gasoline 50 NO NO NO <br /> TPH Total Petroleum Hydrocarbons <br /> MRL Method Reporting Limit <br /> NO None-Detected at or above the method reporting limit <br /> Approved by Llj A6� k& ,,L -Date <br />• <br /> 3 <br />