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COLUMBIA ANALYTICAL SERVICES, INC. <br /> Analytical Report <br /> Client: EMCON Associates Date Received: 08/17/92 <br /> Project: A. Teichert & Sons/F90-02.01 Date Extracted: 08/24/92 <br /> Sample Matrix: Soil Date Analyzed: 09/08/92 <br /> Work Order #: SJ92-1038 <br /> TPH as Diesel <br /> EPA Method 3550/DHS LUFT Method <br /> mg/Kg (ppm) <br /> as Received Basis <br /> Sample Name MRL TPM as Diesel <br />' MW-12 41-41 .5 1 ND <br /> MW-12 80.4-80.9 1 ND <br />' MW-13 41-41 .5 1 750.' <br /> MW-13 80.5-81 1 ND <br /> B92-1 1 1-1 1 .5 1 ND <br /> B92-1 51-51 .5 1 ND <br /> Method Blank 1 ND <br /> 1 <br />' MRL Method Reporting Limit <br /> TPH Total Petroleum Hydrocarbons <br /> ND None Detected at or above the method reporting limit <br /> * Sample contains a lower boiling point hydrocarbon mixture quantitated as diesel. The <br />' chromatogram does not match the typical diesel fingerprint. <br /> i <br /> I <br /> 1 <br /> Approved by Lu 1 l t X Date <br /> 2 <br /> 1921 Ringwood Avenue • Son Jose, Colifornio 95131 • Telephone 4081437-2400 • Fox 4081437-9356 <br />